Tension adjusting device of cable stranding machine

Abstract

The utility model discloses a tension adjusting device of a cable stranding machine. The tension adjusting device comprises a rack, a sliding table device is installed in the rack, the sliding table device slides along the vertical direction of the rack, an installation device is installed through the sliding table device, and a pulley with adjustable rotation damping is installed through the installation device. According to the cable winding device, in the cable winding process, the tension force on a cable can be increased through active descending of the pulley, it is ensured that the cable is tightly wound, and meanwhile, the front position and the rear position of the pulley can be adjusted through the servo push rod so that adaptive change can be conveniently conducted according to the passing position of the cable.

Description

Technical Field

[0001] This utility model relates to a tension adjustment device for a cable stranding machine. Background Technology

[0002] Cable stranding machines are key equipment in the cable manufacturing process, mainly used to strand multiple single wires into cables.

[0003] After the cable is twisted together, it needs to be wound up and then awaits the next step of processing.

[0004] If the winding is too loose during the winding process, the twisted parts of the cable will become loose after winding. Therefore, there is a certain requirement for the tension of the cable during winding.

[0005] Based on the above problems, we designed a tension adjustment device for cable stranding machines that is installed on the cable stranding machine to tension the cable. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a tension adjustment device for a cable stranding machine that is installed on the cable stranding machine and is used to tension the cable.

[0007] To solve the above problems, the present invention adopts the following technical solution:

[0008] A tension adjustment device for a cable stranding machine includes a frame, a slide device installed inside the frame, the slide device sliding vertically along the frame, an mounting device mounted on the slide device, and a pulley with adjustable rotational damping mounted on the mounting device.

[0009] Preferably, the slide table device includes a guide rod, a screw, a linear bearing, a platform, a nut, and a servo motor. The guide rod and the screw are installed parallel to each other on the inner side of the frame. The lower end of the screw is fitted with a bearing between itself and the frame. The servo motor is installed on the top of the frame, and the output end of the servo motor is connected to the upper flange of the screw. The nut and the linear bearing are both fixedly installed via the platform. The guide rod is fitted with the linear bearing, and the screw is fitted with the nut. The mounting device is installed via the platform.

[0010] Preferably, the mounting device includes a mounting plate, with two or more movable rods mounted on the rear of the mounting plate. Each movable rod passes upward through the platform and is fitted with a limit cap. An adjusting tube is slidably mounted on the movable rod, and a locking screw is fitted between the adjusting tube and the movable rod. A spring is sleeved on the movable rod, acting between the adjusting tube and the platform. A retaining seat is provided at the lower end of the movable rod, and the mounting plate is inserted into the retaining seat. Bolts connect the mounting plate and the retaining seat. A servo push rod is mounted at the bottom of the mounting plate, and a frame plate is fixed to the output end of the servo push rod. A first guide rod is fixed to the rear end of the frame plate, and a guide seat is fixed to the bottom of the mounting plate. The first guide rod passes through the guide seat. A shaft is provided at the front end of the frame plate, and a bearing is fitted between the pulley and the shaft.

[0011] Preferably, a threaded rod is machined at the front end of the shaft, a guide groove is machined on the outer wall of the threaded rod, a damping disc is fitted on the threaded rod, a guide strip that matches the guide groove is machined on the inner wall of the damping disc, a nut is fitted through the threaded rod, and the nut is screwed inward to press the damping disc, and frictional resistance is formed when the damping disc contacts the front end face of the pulley.

[0012] Preferably, a groove is machined at the rear end of the damping disc, and a wool felt is embedded in the groove. The wool felt protrudes outward to the outside of the groove, and damping is formed after the wool felt contacts the pulley.

[0013] Preferably, a damping washer is fitted onto the threaded rod, and the damping washer is spaced between the nut and the damping disc.

[0014] The beneficial effects of this utility model are:

[0015] During cable winding, this device can increase the tension on the cable by actively lowering the pulleys, ensuring a tight winding of the cable. At the same time, the forward and backward positions of the pulleys can be adjusted by a servo push rod, so as to adapt to the passage position of the cable. This device has greater versatility and is suitable for widespread use. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a partial schematic diagram of the device;

[0019] Figure 3 Top view of the installation device;

[0020] Figure 4 This is a diagram illustrating the installation of the pulley;

[0021] Figure 5 This is the front view of the damping disc. Detailed Implementation

[0022] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0023] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0024] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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.

[0025] Furthermore, in the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "socket," "connect," "through," and "plug-in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] See Figure 1The tension adjustment device of a cable stranding machine shown includes a frame 1, a slide device 2 installed inside the frame 1, the slide device 2 slides vertically along the frame 1, an mounting device 3 is mounted on the slide device 2, and a pulley 4 with adjustable rotation damping is mounted on the mounting device 3.

[0028] In the above technical solution, the cable 88, which is twisted by the stranding machine, passes through the lower part of the pulley 4 and is then wound on the winding equipment. The height of the slide device 2 is adjusted according to the tightness of the cable, so that the height of the pulley 4 is changed, thereby completing the tensioning of the cable.

[0029] See Figure 1 and Figure 2 As shown, the slide device 2 includes a guide rod 21, a screw 22, a linear bearing 23, a platform 24, a nut 25, and a servo motor 26. The guide rod 21 and the screw 22 are installed parallel to each other on the inner side of the frame 1. The lower end of the screw 22 is fitted with a bearing 27 between itself and the frame 1. The servo motor 26 is installed on the top of the frame 1, and the output end of the servo motor 26 is connected to the upper flange of the screw 22. The nut 25 and the linear bearing 23 are both fixedly installed through the platform 24. The guide rod 21 is fitted with the linear bearing 23, and the screw 22 is fitted with the nut 25. The mounting device 3 is installed through the platform 24.

[0030] In the above technical solution, the servo motor 26 is controlled by a servo system. The output of the servo motor 26 is adjusted through the operating terminal, thereby realizing the height adjustment of the platform 24 to meet the tensioning requirements of the cable.

[0031] The movement of the platform 24 is guided by the cooperation of the guide rod 21 and the linear bearing 23.

[0032] See Figures 1 to 4As shown, the mounting device 3 includes a mounting plate 31. Two movable rods 32 are mounted on the rear of the mounting plate 31. The movable rods 32 pass upward through the platform 24 and are engaged with limit caps 33. An adjusting tube 34 is slidably mounted on the rod of the movable rod 32. A locking screw 35 is engaged between the adjusting tube 34 and the movable rod 32. A spring 36 is sleeved on the movable rod 32. The spring 36 acts between the adjusting tube 34 and the platform 24. A retainer 37 is provided at the lower end of the movable rod 32. 31 is inserted into the mounting plate 37, and bolts 38 connect the mounting plate 31 and the mounting plate 37; a servo push rod 39 is installed at the bottom of the mounting plate 31, and a frame plate 310 is fixed at the output end of the servo push rod 39; a first guide rod 311 is fixed at the rear end of the frame plate 310; a guide seat 312 is fixed at the bottom of the mounting plate 31; the first guide rod 311 passes through the guide seat 312; a shaft 313 is provided at the front end of the frame plate 310; and a bearing 314 is fitted between the pulley 4 and the shaft 313.

[0033] In the above technical solution, the downward movement of the platform 24 drives the mounting plate 31 downward, guides and tensions the cable through the pulley 4, and provides adaptive compression through the compression of the spring 36 to avoid excessive tension force that could cause the cable to break.

[0034] See Figure 4 and Figure 5 As shown, a threaded rod 331 is machined at the front end of the shaft 313, and a guide groove 332 is machined on the outer wall of the threaded rod 331. A damping disc 333 is fitted on the threaded rod 331, and a guide strip 334 that matches the guide groove 332 is machined on the inner wall of the damping disc 333. A nut 335 is fitted through the threaded rod 331. After the nut 335 is screwed inward, it presses the damping disc 333. After the damping disc 333 contacts the front end face of the pulley 4, it forms frictional resistance.

[0035] In the above technical solution, the position of the damping disk 333 can slide along the axial direction of the shaft 313, but it will not rotate. By rotating the nut 335, the contact force between the damping disk 333 and the pulley 4 is adjusted, thereby adjusting the rotation damping of the pulley 4.

[0036] The advantage of the above technology is that when the cable passes through the pulley 4, it will drive the pulley 4 to rotate. When the contact force between the cable and the pulley 4 is insufficient, the pulley 4 will stop rotating due to damping. When the pulley 4 stops rotating, it can clearly indicate that the tension of the cable is insufficient, so that the position of the pulley 4 can be adjusted in time.

[0037] See Figure 4As shown, a groove is machined at the rear end of the damping disc 333, and a wool felt 3333 is embedded in the groove. The wool felt protrudes outward to the outside of the groove, and damping is formed after the wool felt contacts the pulley.

[0038] The wool felt 3333 is replaceable and can be replaced after wear, increasing the maintainability of this device.

[0039] See Figure 4 As shown, a damping washer 3334 is fitted on the threaded rod 331, and the damping washer 3334 is spaced between the nut and the damping disc.

[0040] Damping washer 3334 is used to reduce the clearance between the damping disc and the nut.

[0041] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0042] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0043] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0044] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0045] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0046] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tension adjusting device for a cable stranding machine, characterized in that: Includes a frame, inside which a slide device is installed, the slide device slides vertically along the frame, a mounting device is installed via the slide device, and a pulley with adjustable rotational damping is installed via the mounting device; The slide table device includes a guide rod, a screw, a linear bearing, a platform, a nut, and a servo motor. The guide rod and the screw are installed parallel to each other on the inner side of the frame. The lower end of the screw is fitted with a bearing between itself and the frame. The servo motor is installed on the top of the frame, and its output end is connected to the upper flange of the screw. The nut and the linear bearing are both fixedly installed via the platform. The guide rod is fitted with the linear bearing, and the screw is fitted with the nut. The mounting device is installed via the platform. The mounting device includes a mounting plate with two or more movable rods mounted on its rear. Each movable rod passes upward through the platform and is fitted with a limit cap. An adjusting tube is slidably mounted on the movable rod, and a locking screw is fitted between the adjusting tube and the movable rod. A spring is sleeved on the movable rod, acting between the adjusting tube and the platform. A retaining seat is located at the lower end of the movable rod, and the mounting plate is inserted into the retaining seat. Bolts connect the mounting plate and the retaining seat. A servo push rod is mounted at the bottom of the mounting plate, and a frame plate is fixed to the output end of the servo push rod. A first guide rod is fixed to the rear end of the frame plate, and a guide seat is fixed to the bottom of the mounting plate. The first guide rod passes through the guide seat. A shaft is located at the front end of the frame plate, and a bearing is fitted between the pulley and the shaft.

2. The tension adjusting device for the cable stranding machine according to claim 1, characterized in that: A threaded rod is machined at the front end of the shaft, and a guide groove is machined on the outer wall of the threaded rod. A damping disc is fitted on the threaded rod, and a guide strip that matches the guide groove is machined on the inner wall of the damping disc. A nut is fitted through the threaded rod, and the nut is screwed inward to press the damping disc. The damping disc forms frictional resistance after contacting the front end face of the pulley.

3. The tension adjusting device for the cable stranding machine according to claim 2, characterized in that: A groove is machined at the rear end of the damping disc, and wool felt is embedded in the groove. The wool felt protrudes outward to the outside of the groove, and damping is formed when it contacts the pulley.

4. The tension adjusting device for the cable stranding machine according to claim 2, characterized in that: A damping washer is fitted onto the threaded rod, and the damping washer is spaced between the nut and the damping disc.

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