Cross stretching device

Abstract

The utility model belongs to the field of film fiber stretching, and particularly relates to a cross-shaped stretching device. The device comprises a driving device, a supporting plate, a transmission device, a coupler and a stretching device, the driving device is installed on the supporting plate, the output end of the driving device is connected with the transmission device, the transmission device is connected with the driving device through the coupler, and the stretching device is installed on the supporting plate. The stretching device is installed on the supporting plate and connected with the transmission device, and film fibers are fixedly connected to the stretching device; according to the device, one motor drives the four driving rods to rotate through the driving rods distributed in the cross shape and the transmission box, the stretching device is driven to stretch film fibers in four directions, it is guaranteed that the moving speeds in the four directions are consistent, and the stretching quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of film fiber stretching, specifically to a cross-stretching device. Background Technology

[0002] In the processing of film fiber materials, stretching is a crucial process that plays a vital role in improving the performance of film fibers. Traditional stretching devices often suffer from problems such as single-direction stretching or uneven stretching, failing to meet the requirements of high-performance film fibers for stretching precision and multi-directional stretching. Existing stretching technologies struggle to achieve simultaneous and stable stretching of fibers in multiple directions, leading to uneven stress on the fibers during stretching, affecting the orientation and alignment of the polymer chains within the fibers, and consequently failing to effectively improve key performance indicators such as mechanical strength and toughness. Moreover, if the fixing and clamping methods for film fibers are not reasonable during stretching, fiber slippage or excessive local stress can easily occur, leading to breakage, seriously affecting product quality and production efficiency. In addition, some stretching devices lack stable and precise transmission structures, resulting in inaccurate motion control during the stretching process, failing to meet the high-quality stretching requirements of modern industrial production for film fibers. Therefore, a new type of stretching device that can overcome the above problems is needed to meet the needs of film fiber stretching processing.

[0003] Therefore, in order to solve the above-mentioned problems, a cross-stretching device is specifically proposed. Utility Model Content

[0004] This invention addresses the problems mentioned above by designing a cross-shaped stretching device. This device uses a cross-shaped distribution of drive rods and a transmission box to enable one motor to drive four drive rods to rotate, thereby driving the stretching device to stretch the film fiber in four directions. This ensures that the movement speed in the four directions is consistent and improves the stretching quality.

[0005] To achieve the above objectives, this utility model provides a cross-stretching device, comprising: a driving device, a support plate, a transmission device, a coupling, and a stretching device. The driving device is mounted on the support plate, and the output end of the driving device is connected to the transmission device. The transmission device and the driving device are connected through the coupling. The stretching device is mounted on the support plate and connected to the transmission device. Film fibers are fixedly connected to the stretching device.

[0006] In this way, the film fiber is clamped on the stretching device, and the stretching device moves in sync with the rotation of the drive device, thus stretching the film fiber.

[0007] Furthermore, the driving device includes a drive motor and four drive rods. The output end of the drive motor is connected to one drive rod, and the other end of the drive rod is connected to one end of the transmission device. One end of the remaining three drive rods is connected to the remaining ends of the transmission device, and the other ends of the three drive rods are mounted on the support plate through bearing seats. The four drive rods are arranged in a cross shape.

[0008] Furthermore, the transmission device includes: a gearbox, bevel gears, and connecting rods. The gearbox has a cubical structure. There are four bevel gears and four connecting rods. One end of the connecting rod is fixedly connected to the bevel gear, and the other end of the connecting rod is connected to the drive rod through the coupling. All the bevel gears are installed in the gearbox and mesh with each other. The gearbox is mounted on the support plate.

[0009] In this way, the drive motor drives one drive rod, which transmits power through the meshing of bevel gears to drive the other drive rods to rotate. The bevel gears are of the same size, which ensures the transmission ratio.

[0010] Furthermore, the stretching device includes limiting blocks and sliders. There are four limiting blocks. The surface of the drive rod is threaded. All four limiting blocks are mounted on the support plate and located below the drive rod. The slider is threadedly connected to the drive rod. The lower part of the slider is slidably connected to the limiting blocks. The drive rod, limiting blocks and sliders form a ball screw mechanism.

[0011] In this way, the ball screw mechanism achieves the conversion from rotation to sliding, driving the slider to move.

[0012] Furthermore, it also includes a clamping device, which is mounted on the slider, and the film fiber is fixedly connected to the clamping device.

[0013] Furthermore, the clamping device includes a clamping rod and a pad, the clamping rod being movably connected to the clamping device, and the pad being located inside the clamping device and fixedly connected to the clamping rod.

[0014] In this way, the clamping rod is threadedly connected to the clamping device. By rotating and tightening, the pad clamps the film fiber, which facilitates subsequent stretching.

[0015] Furthermore, the threads on the drive rods are in the same direction if they are on the same straight line, and the threads on adjacent drive rods are in opposite directions.

[0016] By controlling the direction of the thread, the drive rod can achieve the effect of the four sliders moving in the same direction when it rotates, thereby stretching the film fiber.

[0017] In summary, this utility model has the following advantages and beneficial technical effects:

[0018] 1. This utility model discloses a cross-stretching device that employs four drive rods arranged in a cross shape. Driven by a drive motor, it can simultaneously stretch film fibers in two mutually perpendicular directions. This multi-directional stretching method enables the film fibers to be subjected to more uniform force during the stretching process, which helps the polymer chains inside the film fibers to be more orderly oriented in the plane, thereby more effectively improving the mechanical properties of the film fibers, such as strength, modulus, and toughness.

[0019] 2. In the transmission device of the cross stretching apparatus of this utility model, four bevel gears in the gearbox mesh with each other, which makes the power transmission more stable and precise. The power of the drive motor is evenly distributed to each drive rod through the connecting rod and coupling, ensuring that the stretching action in all directions is coordinated and consistent during the cross stretching process, reducing the uneven stretching phenomenon caused by unstable transmission, and further improving the stretching quality of film fibers. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a top view of a cross-stretching device according to this utility model;

[0022] Figure 2 This is a side view of a cross-tensioning device according to the present invention;

[0023] Figure 3 This is a schematic diagram of the bevel gear structure of a cross-tensioning device according to this utility model;

[0024] Figure 4 This is a top view of the bevel gear of a cross-tensioning device according to this utility model;

[0025] Figure 5 This is a utility model Figure 2 A magnified view of A in the middle.

[0026] The reference numerals in the attached figures are:

[0027] 1-Drive device; 11-Drive motor; 12-Drive rod; 2-Support plate;

[0028] 3-Transmission device; 31-Gearbox; 32-Bevel gear; 33-Connecting rod;

[0029] 4-Coupling; 5-Tensioning device; 51-Limit block; 52-Slider;

[0030] 6-Clamping device; 61-Clamping rod; 62-Plate; 7-Film fiber. Detailed Implementation

[0031] The following is in conjunction with the appendix Figures 1-5 The present invention will be further described in detail below. Examples of embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used solely for ease of description and simplification of operation, and do not indicate or imply that the device or component 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. Furthermore, the terms "first" and "second" are merely used for descriptive distinction and have no special meaning. All parts and equipment use conventional models found in the prior art, and the circuit connections employ conventional connection methods found in the prior art, which will not be detailed here. Content not described in detail in this specification belongs to prior art known to those skilled in the art.

[0034] like Figure 1 and Figure 2 As shown, it includes: a drive device 1, a support plate 2, a transmission device 3, a coupling 4, and a tensioning device 5. The drive device 1 is mounted on the support plate 2 by bolts. The output end of the drive device 1 is connected to the transmission device 3. The transmission device 3 and the drive device 1 are connected by the coupling 4. The tensioning device 5 is mounted on the support plate 2 by bolts and is connected to the transmission device 3. The film fiber 7 is fixedly connected to the tensioning device 5.

[0035] like Figure 1 and Figure 2As shown, the drive device 1 includes a drive motor 11 and drive rods 12. There are four drive rods 12. The output end of the drive motor 11 is connected to one drive rod 12, and the other end of this drive rod 12 is connected to one end of the transmission device 3. One end of the remaining three drive rods 12 is connected to the remaining ends of the transmission device 3, and the other end of these three drive rods 12 is mounted on the support plate 2 through bearing seats. The four drive rods 12 are arranged in a cross shape.

[0036] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the transmission device 3 includes: a gearbox 31, bevel gears 32, and connecting rods 33. The gearbox 31 has a cubic structure. There are four bevel gears 32 and four connecting rods 33. One end of the connecting rod 33 is fixedly connected to the bevel gears 32 by a key. The other end of the connecting rod 33 is connected to the drive rod 12 by a coupling 4. The bevel gears 32 are all installed in the gearbox 31 and mesh with each other. The gearbox 31 is bolted to the support plate 2.

[0037] like Figure 1 and Figure 2 As shown, the tensioning device 5 includes four limiting blocks 51 and four sliders 52. The drive rod 12 has threads on its surface. All four limiting blocks 51 are bolted to the support plate 2 and located below the drive rod 12. The slider 52 is threadedly connected to the drive rod 12, and its lower part is slidably connected to the limiting blocks 51. The drive rod 12, limiting blocks 51, and slider 52 form a ball screw mechanism. The limiting blocks 51 restrict the rotation of the slider 52. When the drive rod 12 rotates, its threads cause the slider 52 to move on the limiting blocks 51. The threads on the drive rod 12 are in the same direction on the same straight line, and the threads on adjacent drive rods 12 are in opposite directions.

[0038] like Figure 1 , Figure 2 and Figure 5 As shown, it also includes a clamping device 6, which is bolted to the slider 52. The film fiber 7 is fixedly connected to the clamping device 6. The clamping device 6 includes a clamping rod 61 and a pad 62. The clamping rod 61 is movably connected to the clamping device 6 by bolts and can move up and down on the clamping device 6 by bolts. The pad 62 is located inside the clamping device 6 and is fixedly connected to the clamping rod 61 by welding. When the clamping rod 61 rotates and moves down, it causes the pad 62 to move closer together and clamp the film fiber 7.

[0039] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A cross-stretching device, characterized in that, include: The device comprises a drive unit (1), a support plate (2), a transmission device (3), a coupling (4), and a tensioning device (5). The drive unit (1) is mounted on the support plate (2). The output end of the drive unit (1) is connected to the transmission device (3). The transmission device (3) and the drive unit (1) are connected through the coupling (4). The tensioning device (5) is mounted on the support plate (2) and connected to the transmission device (3). The film fiber (7) is fixedly connected to the tensioning device (5).

2. The cross-stretching device according to claim 1, characterized in that, The driving device (1) includes a driving motor (11) and driving rods (12). There are four driving rods (12). The output end of the driving motor (11) is connected to one of the driving rods (12). The other end of the driving rod (12) is connected to one end of the transmission device (3). The remaining three driving rods (12) are connected to the remaining ends of the transmission device (3). The other ends of the three driving rods (12) are mounted on the support plate (2) through bearing seats. The four driving rods (12) are arranged in a cross shape.

3. The cross-stretching device according to claim 2, characterized in that, The transmission device (3) includes: a gearbox (31), bevel gears (32) and connecting rods (33). The gearbox (31) has a cubic structure. There are four bevel gears (32) and four connecting rods (33). One end of the connecting rod (33) is fixedly connected to the bevel gear (32). The other end of the connecting rod (33) is connected to the drive rod (12) through the coupling (4). The bevel gears (32) are all installed in the gearbox (31) and mesh with each other. The gearbox (31) is installed on the support plate (2).

4. The cross-stretching device according to claim 2, characterized in that, The tensioning device (5) includes a limiting block (51) and a slider (52). There are four limiting blocks (51). The surface of the drive rod (12) is threaded. The four limiting blocks (51) are all installed on the support plate (2) and located below the drive rod (12). The slider (52) is threadedly connected to the drive rod (12). The lower part of the slider (52) is slidably connected to the limiting block (51). The drive rod (12), the limiting block (51) and the slider (52) form a ball screw mechanism.

5. A cross-stretching device according to claim 4, characterized in that, It also includes a clamping device (6), which is mounted on the slider (52), and the film fiber (7) is fixedly connected to the clamping device (6).

6. The cross-stretching device according to claim 5, characterized in that, The clamping device (6) includes a clamping rod (61) and a pad (62). The clamping rod (61) is movably connected to the clamping device (6), and the pad (62) is located inside the clamping device (6) and is fixedly connected to the clamping rod (61).

7. A cross-tensioning device according to claim 4, characterized in that, The threads on the drive rod (12) that are on the same straight line have the same thread direction, while the threads on adjacent drive rods (12) have opposite thread directions.

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