Polyester fiber packing belt yarn separation tooth facilitating tension adjustment and positioning rolling

Abstract

The utility model discloses a polyester fiber packing belt yarn separating tooth convenient to adjust tension and roll in a positioning mode, which comprises a bottom plate (1), separating units with the same number as yarns are arranged on the bottom plate (1), each separating unit comprises a support plate (2) fixed with the bottom plate (1), a vertical rotating plate (3) is arranged on the front side of the support plate (2), a spring is arranged between the rotating plate (3) and the support plate (2), and the rotating plate (3) is connected with the bottom plate (1). An upper roller (4) is arranged at the upper end of the rotating plate (3), a lower roller (5) is arranged at the lower end of the rotating plate (3), a rear roller (6) connected with the support plate (2) is arranged on the rear side of the upper roller (4), and rope grooves (7) are formed in the peripheral face of the upper roller (4), the peripheral face of the lower roller (5) and the peripheral face of the rear roller (6). The yarn tension adjusting device has the advantages of being long in service life and capable of adjusting yarn tension to be in a stable state.

Description

Technical Field

[0001] This utility model belongs to the field of packaging tape production equipment, and in particular relates to a polyester fiber packing tape yarn separation tooth that is easy to adjust tension and position rolling. Background Technology

[0002] In the production of polyester fiber packaging tape, polyester fiber yarns, which are typically extracted from multiple yarn rolls, are fed into a mold as carriers, and then the packaging tape is formed by the molten material in the mold. When conveying multiple yarns, it is common practice to directly feed the yarns into the mold. However, the irregular movement of the yarns can affect product quality and may even cause the yarns to break, resulting in production stoppages and impacting processing efficiency.

[0003] To address the aforementioned technical problems, a yarn separating tooth device has been developed, installed on the feed side of the mold. The yarn separating tooth device, as described in application number 201520606970.6, includes a conductor structure and a separating tooth structure. The conductor structure has multiple conductor through-holes, and the separating tooth structure has multiple separating grooves. Multiple yarns pass through the conductor through-holes and separating grooves respectively before entering the mold, reducing irregular yarn movement, preventing yarn breakage, and ensuring processing efficiency. However, the following problems were found during use: First, due to the frequent sliding friction between the yarn and the inner walls of the conductor through-holes and separating grooves during yarn movement, the inner walls of the conductor through-holes and separating grooves are easily cut by the yarn, resulting in a short service life for the yarn separating tooth device. Secondly, although the existing yarn separating tooth device reduces the irregular jumping of the yarn, it cannot maintain the stability of the yarn tension. Yarn tension fluctuations always exist, and the tension on the yarn may even disappear in a short period of time. The phenomenon reflected in the product is that some yarns may be bent at certain positions. When tension is applied to the packing strap, the bent part does not bear the tension, resulting in a reduction in the tensile strength of the packing strap. Utility Model Content

[0004] The purpose of this invention is to provide a polyester fiber packing strap yarn separating tooth that facilitates tension adjustment and positioning rolling. This invention has the advantages of a long service life and the ability to adjust the yarn tension to a stable state.

[0005] The technical solution of this utility model: a polyester fiber packing strap yarn separating tooth that facilitates tension adjustment and positioning rolling, including a base plate, on which a separating unit with the same number of yarns is provided, the separating unit including a support plate fixed to the base plate, a vertical rotating plate on the front side of the support plate, a spring between the rotating plate and the support plate, an upper roller at the upper end of the rotating plate, a lower roller at the lower end of the rotating plate, a rear roller connected to the support plate on the rear side of the upper roller, and rope grooves on the outer circumferential surfaces of the upper roller, the lower roller, and the rear roller.

[0006] In the aforementioned polyester fiber packing strap yarn separating teeth that facilitate tension adjustment and positioning rolling, the cross-section of the rope groove is V-shaped.

[0007] In the aforementioned polyester fiber packing strap yarn separating teeth that facilitate tension adjustment and positioning rolling, the support plate includes a vertical plate whose lower end is fixed to the base plate, the upper end of the vertical plate is rotatably connected to the rear roller, a cantilever plate is provided between the vertical plate and the rotating plate, the rear end of the cantilever plate is fixed to the vertical plate, the front end of the cantilever plate is rotatably connected to the middle of the rotating plate, and the two ends of the spring are respectively connected to the rotating plate and the cantilever plate.

[0008] In the aforementioned polyester fiber packing strap yarn separating teeth that facilitate tension adjustment and positioning rolling, the vertical plate and the rotating plate are located on the same plane, and the upper roller, the rear roller, and the cantilever plate are located on the same side of the vertical plate.

[0009] In the aforementioned polyester fiber packing strap yarn separating teeth that facilitate tension adjustment and positioning rolling, the odd-numbered separating units and the even-numbered separating units are staggered in the front-to-back direction.

[0010] In the aforementioned polyester fiber packing strap yarn separating teeth that facilitate tension adjustment and positioning rolling, the lower roller of the rear separating unit is lower than the lower roller of the front separating unit.

[0011] In the aforementioned polyester fiber packing strap yarn separating teeth that facilitate tension adjustment and positioning rolling, a first fixing plate and a second fixing plate are provided on the bottom plate. The first fixing plate is connected to the vertical plate screw of the odd-numbered separating unit, and the second fixing plate is connected to the vertical plate screw of the even-numbered separating unit.

[0012] Compared with existing technologies, this invention utilizes a spring on a rotating plate to cause two rollers on the plate to press the yarn, thus applying yarn tension to the rollers. When the yarn tension changes, the rotating plate rotates accordingly, and the wrapping length of the yarn on the rollers changes accordingly. Excess yarn due to reduced tension wraps onto the rollers, or yarn reduced due to increased tension is collected from the rollers, facilitating the adjustment of tension to a stable state. This allows the yarn to pass straight through the mold, resulting in a packing strap with good tensile strength. Because the rollers rotate as the yarn passes through, the yarn remains relatively stationary with respect to the rollers, preventing damage to the rollers and extending the service life of the separating teeth. Therefore, this invention has the advantages of a long service life and the ability to adjust yarn tension to a stable state.

[0013] In addition, by setting a rear roller on the rear side of the separation unit to position the height at which the yarn enters the mold, the friction between the yarn and the mold can be reduced, which helps to improve the mold life. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0015] Figure 2This is a front view of the present invention.

[0016] Figure 3 This is a top view of the present invention.

[0017] Figure 4 This is a front view of the separation unit.

[0018] The markings in the attached diagram are: 1-base plate, 2-support plate, 3-rotating plate, 4-upper roller, 5-lower roller, 6-rear roller, 7-rope groove, 8-vertical plate, 9-cantilever plate, 10-first fixing plate, 11-second fixing plate, 12-yarn. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0020] Example. A polyester fiber packing strap with yarn separation teeth that facilitates adjustable tension positioning and rolling, such as... Figure 1 As shown, it includes a base plate 1, on which a number of separation units are provided, the same as the number of yarns.

[0021] The separation unit includes a support plate 2 fixed to the base plate 1. The support plate 2 includes a vertical plate 8 whose lower end is fixed to the base plate 1. A rear roller 6 is connected to the upper end of the vertical plate 8 via a bearing. A vertical rotating plate 3 is provided on the front side of the vertical plate 8. The vertical plate 8 is connected to the rotating plate 3 via a horizontal cantilever plate 9. The rear end of the cantilever plate 9 is fixed to the vertical plate 8, and the front end of the cantilever plate 9 is rotatably connected to the middle of the rotating plate 3. A spring (omitted in the attached figure) is provided between the cantilever plate 9 and the rotating plate 3. The spring can be a tension spring or a torsion spring, as long as it can provide torque for the upper end of the rotating plate 3 to rotate backward. The spring setting is a conventional technical means. An upper roller 4 is connected to the upper end of the rotating plate 3 via a bearing, and a lower roller 5 is connected to the lower end of the rotating plate 3 via a bearing. The outer circumference of the upper roller 4, the lower roller 5, and the rear roller 6 are all provided with rope grooves 7 with a V-shaped cross section.

[0022] The vertical plate 8 and the rotating plate 3 are located on the same plane, and the upper roller 4, the rear roller 6, the spring, and the cantilever plate 9 are located on the same side of the vertical plate 8. The upper roller 4 and the rear roller 6 are both made of bearing steel.

[0023] The odd-numbered separation units and the even-numbered separation units are staggered in the front-to-back direction, so that the rear roller 6 of the odd-numbered separation unit is located between the rear roller 6 and the upper roller 4 of the even-numbered separation units, so that the adjacent separation units can be closer together and the axial distance between the rear rollers 6 of the adjacent separation units is smaller.

[0024] The lower roller 5 of the rear separation unit is lower than the lower roller 5 of the front separation unit.

[0025] The base plate 1 is provided with a first fixing plate 10 and a second fixing plate 11. The first fixing plate 10 is screwed to the vertical plate 8 of the odd-numbered separation unit, and the second fixing plate 11 is screwed to the vertical plate 8 of the even-numbered separation unit. The first fixing plate 10 and the second fixing plate 11 serve to connect all separation units and increase the structural strength of the separation teeth.

[0026] Working principle: such as Figure 2 As shown, each yarn 12 passes through a separating unit, going around the bottom of the lower roller 5, around the top of the upper roller 4, and then over the top of the rear roller 6. On the yarn exit side of the separating unit is the mold, where all the yarns converge. Therefore, it is necessary to bring all the yarns as close together as possible, which requires shortening the axial distance between the rear rollers 6. On the yarn inlet side of the separating unit, the yarns emerge from the side-by-side yarn rolls, and there is a significant distance between the yarns. Therefore, the rope groove 7 on the lower roller 5 needs to be a V-shaped groove. The V-shaped groove has a good guiding effect, narrowing the distance between the yarns so that they can smoothly enter the mold. The rope grooves 7 on the upper roller 4 and the rear roller 6 do not need to be strictly V-shaped; they only need to constrain the lateral movement of the yarns.

[0027] When the yarn is stationary, i.e., in the initial state, the upper end of the rotating plate 3 should remain in front of the lower end of the rotating plate 3 under the force of the spring. When the yarn moves, if the average tension on the yarn is maintained, the movement of the yarn generates opposing forces on the lower roller 5 and the upper roller 4, causing the rotating plate 3 to rotate counterclockwise and remain vertical. Based on this, when the yarn tension increases, the rotating plate 3 rotates counterclockwise to decrease the tension; when the yarn tension decreases, the rotating plate 3 rotates clockwise to increase the tension. This ensures that the tension fluctuations on the yarn are always maintained around the average tension, stabilizing the yarn tension. The rear roller 6 positions the yarn exit height, ensuring the yarn enters the mold horizontally and reducing friction.

[0028] The purpose of setting rollers on both the upper and lower sides of the rotating plate 3 is to allow the upper and lower ends of the rotating plate 3 to be subjected to force simultaneously, making the rotating plate 3 more sensitive and responsive, which helps to maintain stable yarn tension. At the same time, the yarn can be wrapped on the rollers for a longer length, which can adjust a wider range of tension fluctuations.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A polyester fiber packing strap with yarn separation teeth that facilitates tension adjustment and positioning rolling, characterized in that: Includes a base plate (1), on which a separation unit with the same number of yarns is provided. The separation unit includes a support plate (2) fixed to the base plate (1). A vertical rotating plate (3) is provided on the front side of the support plate (2). A spring is provided between the rotating plate (3) and the support plate (2). An upper roller (4) is provided at the upper end of the rotating plate (3), and a lower roller (5) is provided at the lower end of the rotating plate (3). A rear roller (6) connected to the support plate (2) is provided on the rear side of the upper roller (4). A rope groove (7) is provided on the outer circumference of the upper roller (4), the outer circumference of the lower roller (5), and the outer circumference of the rear roller (6).

2. The polyester fiber packing strap yarn separating teeth for easy tension adjustment and positioning rolling as described in claim 1, characterized in that: The cross section of the rope groove (7) is V-shaped.

3. The polyester fiber packing strap yarn separating teeth for easy tension adjustment and positioning rolling as described in claim 1, characterized in that: The support plate (2) includes a vertical plate (8) whose lower end is fixed to the base plate (1). The upper end of the vertical plate (8) is rotatably connected to the rear roller (6). A cantilever plate (9) is provided between the vertical plate (8) and the rotating plate (3). The rear end of the cantilever plate (9) is fixed to the vertical plate (8). The front end of the cantilever plate (9) is rotatably connected to the middle part of the rotating plate (3). The two ends of the spring are respectively connected to the rotating plate (3) and the cantilever plate (9).

4. The polyester fiber packing strap yarn separating teeth for easy tension adjustment and positioning rolling as described in claim 3, characterized in that: The vertical plate (8) and the rotating plate (3) are located on the same plane, and the upper roller (4), the rear roller (6) and the cantilever plate (9) are located on the same side of the vertical plate (8).

5. The polyester fiber packing strap yarn separating teeth for easy tension adjustment and positioning rolling as described in claim 4, characterized in that: The odd-numbered separation units and the even-numbered separation units are staggered in the front-to-back direction.

6. The polyester fiber packing strap yarn separating teeth for easy tension adjustment and positioning rolling as described in claim 5, characterized in that: The lower roller (5) of the rear separation unit is lower than the lower roller (5) of the front separation unit.

7. The polyester fiber packing strap yarn separating teeth for easy tension adjustment and positioning rolling as described in claim 5, characterized in that: The base plate (1) is provided with a first fixing plate (10) and a second fixing plate (11). The first fixing plate (10) is screwed to the vertical plate (8) of the odd-numbered separation unit, and the second fixing plate (11) is screwed to the vertical plate (8) of the even-numbered separation unit.

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