Jumping prevention yarn guide device of rubber tube knitting machine

Abstract

The utility model relates to the technical field of knitting machines, in particular to an anti-jumper yarn guide device of a rubber hose knitting machine, which comprises a rubber hose knitting machine body, a rack is fixedly mounted at the bottom of the rubber hose knitting machine body, a plurality of material racks are arranged on the rubber hose knitting machine body at intervals in the circumferential direction, and the material racks are used for carding and guiding knitting yarns; the device further comprises a knitting yarn roller, first yarn guide wheels, second yarn guide wheels and the like, the knitting yarn roller is rotationally installed in the middle of the material frame, supporting plates are symmetrically and fixedly arranged on the upper portion and the lower portion of the material frame, the first yarn guide wheels are symmetrically and rotationally installed on the two sides between the two supporting plates, and the second yarn guide wheel is rotationally installed on one side of the material frame. The sliding frame is driven by the rodless air cylinder to slide along the guide rail, the distance between the second yarn guide wheel and the third yarn guide wheel can be adjusted in a high-precision mode, yarn can be better matched with different knitting speeds of a rubber tube knitting machine, the moderate tightening state is kept, and the phenomenon of yarn jumping in the knitting process is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to braiding machine technical field especially relates to a kind of anti-jumping wire yarn guide device of hose braider. BACKGROUND

[0002] As the key equipment for producing high-performance hoses, hose braiders are widely used in the automotive, aerospace, petroleum and other industrial fields, and play an important role especially in the manufacturing process of high-pressure hoses. This equipment forms a protective layer by interlacing multiple yarns or metal wires in a specific way, thereby giving the hose excellent pressure resistance and durability. In the hose braiding process, the yarn guide device is responsible for guiding the yarn to wrap evenly on the mandrel, ensuring consistent yarn tension and tight braiding structure. A high-quality yarn guide device is crucial for maintaining stable yarn transmission, improving braiding efficiency and ensuring the quality of the final product.

[0003] Traditional hose braiders are prone to yarn jumping, deviation and even falling off when running at high speed. Therefore, the anti-jumping wire yarn guide device in the hose braider usually adopts a combination of pulleys and springs. When the yarn tension is too low, the spring adjusts the yarn tension through the reset action to drive the pulley, thereby avoiding the jumping phenomenon. Although this design can ensure the self-adaptive adjustment of yarn tension to a certain extent, it still has certain defects. Due to the non-linear restoring force of the spring and the sliding characteristics of the pulley, the yarn tension adjustment has hysteresis and instability, especially at high speed braiding, the spring reaction speed cannot meet the demand, which is easy to cause tension too large or too small. And after a long time of use, the spring may fatigue failure, affecting the accuracy of tension control, thereby reducing the long-term stability and reliability of the equipment. Therefore, there is an urgent need for an anti-jumping wire yarn guide device for hose braider to solve the above problems and improve overall production efficiency and product quality. SUMMARY

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides an anti-jumping wire yarn guide device for hose braider.

[0005] Technical solution: a kind of anti-jumping wire guide device of hose braider, including hose braider body, the bottom of the hose braider body is fixedly installed with rack, the rack is used to stably support entire hose braider body, the hose braider body is peripherally spaced apart and is provided with multiple racks, the rack is used to carding guide braiding yarn;It also includes braiding yarn roller, support plate, guide pulley one, guide pulley two, guide rail, sliding frame, guide pulley three and driving piece, the middle part of the rack is rotatably installed with braiding yarn roller, the upper and lower parts of the rack are symmetrically fixedly provided with support plate, the guide pulley one is rotatably installed between the two support plates on both sides, the guide pulley one is used to initially guide the yarn on the braiding yarn roller, the rack side is rotatably installed with guide pulley two, the guide pulley two and guide pulley one are perpendicular to each other, the same side of the upper and lower support plates is fixedly provided with guide rail, the sliding frame is slidably connected on the guide rail, the three guide pulley threes are rotatably installed on the sliding frame, the guide pulley three and guide pulley two are parallel to each other, the braiding yarn guided by the guide pulley one is sequentially wound around guide pulley two and multiple guide pulley threes, the rack is fixedly installed with driving piece for driving sliding frame to slide along guide rail.

[0006] In a preferred embodiment of the present application, the driving piece is a rodless cylinder, which is fixedly assembled on the support plate, and the slide table of the rodless cylinder is fixedly connected with the sliding frame.

[0007] In a preferred embodiment of the present application, a tension sensor is installed on the upper guide rail shell of the rack, and the tension sensor is located between the guide pulley two and the guide pulley three, the roller of the tension sensor is in contact with the guided braiding yarn, and the motion of the rodless cylinder is controlled by the built-in controller of the tension sensor.

[0008] In a preferred embodiment of the present application, a wire clamping groove is arranged in the wheel groove of the guide pulley one, the guide pulley two and the guide pulley three, the wire clamping groove is a smooth clamping groove recessed inward, the guide pulley one, the guide pulley two and the guide pulley three can better adapt to the limiting braiding yarn of different thicknesses, and the guide pulley one, the guide pulley two and the guide pulley three can stably guide the braiding yarn.

[0009] In a preferred embodiment of the present application, a wire guide frame is assembled on the side of the rack close to the braiding yarn outlet, a plurality of wire guide cylinders are fixedly installed on the wire guide frame, and the plurality of wire guide cylinders are located on the same straight line, the wire guide cylinders are used to guide the braiding yarn out of the hose braider body for braiding.

[0010] In a preferred embodiment of the present application, the wire guide frame is detachably installed on the rack by bolts, and the wire guide frame can be flexibly replaced in position according to the outlet guiding requirements of the braiding yarn.

[0011] Compared with the prior art, the utility model has the advantages of the following:

[0012] 1、 The utility model discloses a slide frame is driven along the guide rail by the rodless cylinder, can the distance between yarn guide wheel no. 2 and yarn guide wheel no. 3 is adjusted with high accuracy, so that the yarn can better adapt to the different knitting speed of the rubber tube knitting machine, and keep the moderate taut state, reduce the phenomenon of the line jump in the knitting process.

[0013] 2、 The utility model discloses being equipped with tension sensor, the pressure of knitting yarn is monitored in real time, and the action of rodless cylinder is automatically controlled through built-in controller to adjust the tightness degree of yarn, when detecting that the yarn pressure is not in the reasonable range, automatically carry out tightness adjustment, ensure that the yarn is always in the best working condition, avoid the knitting quality problem caused by improper tension.

[0014] 3、 The utility model discloses the wheel groove of yarn guide wheel no. 1, yarn guide wheel no. 2 and yarn guide wheel no. 3 is provided with the wire clamping groove, and the wire clamping groove can better adapt and limit the knitting yarn of different thickness, further reduce the risk of the line jump of knitting yarn on each yarn guide wheel, improve the stability and reliability of the knitting process. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0016] Figure 2 It is the connection relation diagram of yarn guide wheel no. 1, yarn guide wheel no. 2 and yarn guide wheel no. 3 of the utility model.

[0017] Figure 3 It is the schematic diagram of guide rail, slide frame, tension sensor and wire guide frame of the utility model.

[0018] Figure 4 It is the schematic diagram of the cooperation relation of guide rail, slide frame and tension sensor of the utility model.

[0019] Among them, the above-mentioned drawing includes the following sign: 1, rubber tube knitting machine body, 101, rack, 2, material frame, 3, knitting yarn roll, 4, support plate, 5, yarn guide wheel no. 1, 6, yarn guide wheel no. 2, 7, guide rail, 8, slide frame, 9, yarn guide wheel no. 3, 10, rodless cylinder, 11, tension sensor, 12, wire clamping groove, 13, wire guide frame, 131, wire drum. DETAILED DESCRIPTION

[0020] Although this invention may be described with respect to a particular application or industry, those skilled in the art will recognize its broader applicability. Those skilled in the art will understand that terms such as "above," "below," "upward," "downward," etc., are used to describe the drawings and not to indicate a limitation on the scope of the invention as defined by the appended claims. Any numerical designations such as "first" or "second" are merely illustrative and not intended to limit the scope of the invention in any way.

[0021] A yarn guide device for preventing yarn slippage on a hose braiding machine, such as Figures 1-4 As shown, the device includes a hose braiding machine body 1, with a frame 101 fixedly mounted at the bottom. The frame 101 provides stable support for the entire hose braiding machine body 1. Multiple material racks 2 are spaced circumferentially around the hose braiding machine body 1, and these material racks 2 are used to comb and guide the braided yarn. The device also includes a braiding yarn roller 3, support plates 4, a first guide wheel 5, a second guide wheel 6, a guide rail 7, a sliding frame 8, a third guide wheel 9, and a driving component. A braiding yarn roller 3 is rotatably mounted in the center of each material rack 2. Support plates 4 are symmetrically fixed at the top and bottom of each material rack 2. A first guide wheel 5 is symmetrically rotatably mounted on both sides between the two support plates 4. The first guide wheel 5 is used to initially guide the braided yarn from the braiding yarn roller 3. A second guide wheel 6 is rotatably mounted on one side of each material rack 2. Guide roller 2 6 and guide roller 1 5 are perpendicular to each other. Guide rails 7 are fixedly installed on the same side of the upper and lower support plates 4. A sliding frame 8 is slidably connected to the guide rail 7. Three guide rollers 3 9 are rotatably installed on the sliding frame 8 at intervals. Guide rollers 3 9 and guide roller 2 6 are parallel to each other. The braiding yarn guided by guide roller 1 5 passes around guide roller 2 6 and multiple guide rollers 3 9 in sequence. A drive component is fixedly installed on the material rack 2 to drive the sliding frame 8 to slide along the guide rail 7. The drive component drives the sliding frame 8 to slide, changing the distance between guide roller 2 6 and guide rollers 3 9, thereby adjusting the tightness of the braided yarn, so that the braided yarn can better adapt to the braiding speed of the hose braiding machine and maintain a moderate tension, reducing the occurrence of braiding skips.

[0022] like Figure 2 As shown, the driving component is a rodless cylinder 10, which is fixedly mounted on the support plate 4. The slide table and sliding frame 8 of the rodless cylinder 10 are fixedly connected. The rodless cylinder 10 can adjust the distance between the second guide wheel 6 and the third guide wheel 9 with high precision, thereby accurately adjusting the tension of the guiding braided yarn.

[0023] like Figure 2 and Figure 4As shown, the upper rail 7 of the rack 2 is provided with a tension sensor 11 between the guide roller two 6 and the guide roller three 9, the roller of the tension sensor 11 is in contact with the woven yarn, and the tension sensor 11 controls the movement of the rodless cylinder 10 through the built-in controller. When the force sensing element on the roller of the tension sensor 11 senses that the pressure of the woven yarn is less than the reasonable pressure range, the tension sensor 11 controls the rodless cylinder 10 to start through the built-in controller, and the rodless cylinder 10 drives the sliding frame 8 to move away from the guide roller two 6, so that the woven yarn between the guide roller two 6 and the guide roller three 9 is properly tightened. Conversely, when the pressure of the woven yarn is greater than the reasonable pressure range, the sliding frame 8 is driven to move close to the guide roller two 6 by controlling the rodless cylinder 10, so that the woven yarn between the guide roller two 6 and the guide roller three 9 is properly loosened, thereby automatically adjusting the tightness of the woven yarn to return to the normal range.

[0024] As shown in Figure 4 , the guide roller one 5, the guide roller two 6 and the guide roller three 9 are provided with a wire clamping groove 12 in the wheel groove, which is a smooth clamping groove inwardly recessed. The guide roller one 5, the guide roller two 6 and the guide roller three 9 can better adapt to woven yarns of different thicknesses and limit the woven yarns, so that the guide roller one 5, the guide roller two 6 and the guide roller three 9 can stably guide the woven yarns and further reduce the risk of the woven yarns jumping on the guide rollers.

[0025] As shown in Figure 2 and Figure 3 , the rack 2 is provided with a wire guide 13 near the side where the woven yarns exit, and the wire guide 13 is fixedly provided with a plurality of wire guide cylinders 131, which are located on the same straight line. The wire guide cylinders 131 are used to guide the woven yarns out of the hose braiding machine body 1 for braiding.

[0026] As shown in Figure 3 , the wire guide 13 is detachably installed on the rack 2 by bolts, and the wire guide 13 can be flexibly replaced in position according to the requirements of the woven yarns exiting guide, thereby improving the flexibility of the wire guide 13.

[0027] When the hose braider starts, the braiding yarn roll 3 on the material rack 2 continuously releases yarn, which first passes through the symmetrically arranged yarn guide wheel one 5 for preliminary combing and bidirectional guiding, forming a horizontally expanded yarn path, and then the yarn is turned by the vertically arranged yarn guide wheel two 6 and enters the dynamic yarn guide area controlled by the sliding frame 8, and the braiding yarn is sequentially wound through the tension sensor 11 and the yarn guide wheel three 9, passes through the multiple coaxially arranged guide cylinders 131 on the guide frame 13, and forms a straight and uniform wire outlet trajectory, and finally is transported to the braiding machine body for braiding, in this process, the tension sensor 11 will monitor the tension of the braiding yarn in real time, and then the rodless cylinder 10 drives the sliding frame 8 to move along the guide rail 7 according to the real-time feedback of the tension sensor 11, and drives the yarn guide wheel three 9 to move synchronously: when the braiding yarn is relaxed due to speed change, the tension sensor 11 detects that the yarn pressure is lower than the threshold value, triggering the rodless cylinder 10 to push the sliding frame 8 away from the yarn guide wheel two 6, increasing the distance between the yarn guide wheel two 6 and the yarn guide wheel three 9, so that the yarn path is lengthened and restored to be tight; on the contrary, if the yarn is too tight, the sliding frame 8 approaches the yarn guide wheel two 6, shortens the distance to release the tension, this closed loop adjustment process ensures that the yarn is always within the preset tension range, and since the yarn guide wheel one 5, the yarn guide wheel two 6 and the yarn guide wheel three 9 are provided with the yarn clamping groove 12 in the wheel groove, the yarn running direction is accurately limited through the recessed smooth groove, avoiding yarn deviation or off-slot, during the whole process, the high-precision displacement control of the rodless cylinder 10 and the instant response of the tension sensor 11 cooperate, effectively suppressing the tension fluctuation of the yarn, combined with the physical limiting design of the three-stage yarn guide wheel, significantly reducing the risk of wire jumping during high-speed braiding.

[0028] Although the present application has been described with reference to the example embodiments, it is to be understood that the application is not limited to the disclosed example embodiments. The scope of the following claims is to be given the broadest interpretation to encompass all variations and equivalents.

Claims

1. A anti-jumping yarn guide device of hose braider, comprising a hose braider body (1), a rack (101) is fixedly installed at the bottom of the hose braider body (1), and a plurality of yarn guide racks (2) are circumferentially and spaced apart on the hose braider body (1). characterized in that It also comprises a braiding yarn roller (3), a support plate (4), a yarn guide wheel one (5), a yarn guide wheel two (6), a guide rail (7), a sliding frame (8), a yarn guide wheel three (9) and a driving member, the braiding yarn roller (3) is rotatably installed at the middle of the rack (2), the support plate (4) is symmetrically and fixedly arranged on the upper and lower parts of the rack (2), the yarn guide wheel one (5) is symmetrically and rotatably installed on both sides between the two support plates (4), the yarn guide wheel two (6) is rotatably installed on one side of the rack (2), the yarn guide wheel two (6) and the yarn guide wheel one (5) are perpendicular to each other, the guide rail (7) is fixedly arranged on the same side of the upper and lower support plates (4), the sliding frame (8) is slidably connected to the guide rail (7), and not less than three yarn guide wheel threes (9) are rotatably installed on the sliding frame (8), the yarn guide wheel three (9) and the yarn guide wheel two (6) are parallel to each other, the braiding yarn guided out of the yarn guide wheel one (5) sequentially passes through the yarn guide wheel two (6) and the plurality of yarn guide wheel threes (9), and the driving member for driving the sliding frame (8) is fixedly installed on the rack (2).

2. A line-jump-preventing yarn guide for a hose braiding machine according to claim 1, wherein The driving member is a rodless cylinder (10), the rodless cylinder (10) is fixedly assembled on the support plate (4), and the sliding table of the rodless cylinder (10) is fixedly connected with the sliding frame (8).

3. A line-jump-preventing yarn guide for a hose braiding machine according to claim 2, wherein A tension sensor (11) is installed on the outer shell of the upper guide rail (7) of the rack (2), the tension sensor (11) is located between the yarn guide wheel two (6) and the yarn guide wheel three (9), the roller of the tension sensor (11) is in contact with the guided braiding yarn, and the motion of the rodless cylinder (10) is controlled by the built-in controller of the tension sensor (11).

4. A line-jump-preventing yarn guide for a hose braiding machine according to claim 3, wherein The wheel groove of the yarn guide wheel one (5), the yarn guide wheel two (6) and the yarn guide wheel three (9) is provided with a wire clamping groove (12), and the wire clamping groove (12) is a smooth clamping groove recessed inward.

5. A line-jump-preventing yarn guide for a hose braiding machine according to claim 4, wherein A wire guide frame (13) is assembled on the side of the rack (2) close to the braiding yarn outlet, a plurality of wire guide rollers (131) are fixedly installed on the wire guide frame (13), and the plurality of wire guide rollers (131) are located on the same straight line.

6. A line-jump-preventing yarn guide for a hose braiding machine according to claim 5, wherein The wire guide frame (13) is detachably installed on the rack (2) through bolts.

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