Adjustable sizing die

Abstract

The utility model relates to wire and cable manufacturing technical field discloses a kind of adjustable sizing die, to solve the problem of frequent replacement of traditional sizing die, unable to adapt to line diameter fluctuation. Including iris mechanism, rotating disc, multiple sliding blocks and annular spring, wherein sliding block is connected with the fixed track inside iris mechanism by pivot, and jointly enclose middle hole passage;Rotating disc is matched with the cylindrical protrusion in the middle of sliding block by its long hole, rotating rotating disc can drive all sliding blocks synchronous movement, to continuously, accurately adjust the diameter of middle hole passage;Annular spring is embedded in the groove of sliding block, provides the continuous elastic tightening force for sliding block group. The utility model has two modes of fixed adjustment and self-adaptive adjustment, can realize accurate sizing control, can also automatically adapt to the line diameter fluctuation of cable, significantly improves production efficiency and cable quality.

Description

Technical Field

[0001] This utility model relates to the field of wire and cable manufacturing technology, and in particular to an adjustable sizing die, which is applied to the cable outer diameter control process after tape wrapping / longitudinal wrapping in the production process of railway digital signal cables, cable signal cables and other cables, to accurately control the cable outer diameter and ensure the tightness of the wrapping tape. Background Technology

[0002] In the production process of railway digital signal cables, cable signal cables, and other cables, some processes require wrapping or longitudinally wrapping with tape. After completion, the outer diameter of the cable needs to be controlled by a sizing die to meet product size requirements and ensure that the wrapping is tight.

[0003] In existing technologies, sizing dies only have fixed size specifications and a limited number of selectable sizes, which have the following problems: 1. When producing cables of different diameters, it is necessary to frequently disassemble and replace the sizing die of the corresponding size, which is time-consuming and labor-intensive, and seriously affects production efficiency; 2. The replacement process can easily lead to discontinuity in cable diameter and insufficient accuracy in measuring the actual diameter of the cable; 3. Fixed-size sizing dies cannot adapt to small fluctuations in wire diameter, have poor size adjustment flexibility, and are difficult to meet the needs of efficient and precise production. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable sizing die to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An adjustable sizing die, comprising:

[0007] Iris recognition mechanism, wherein a fixed track is provided inside the iris recognition mechanism;

[0008] Multiple sliders are slidably mounted on the fixed track and together form an adjustable diameter central channel;

[0009] A rotating disk is rotatably disposed within the iris mechanism and is connected to the slider for driving all the sliders to move synchronously to change the diameter of the intermediate channel;

[0010] An elastic constraint assembly provides an elastic tightening force to all the sliders, pointing toward the center of the central channel.

[0011] The iris mechanism is a hollow cylindrical structure with one open end, and a mounting plate is fixedly installed at the open end. The rotating disk is disposed between the mounting plate and the slider.

[0012] The slider has a triangular block structure.

[0013] The slider is provided with a rotating shaft at one end near the bottom of the iris mechanism, and the fixed track is a curved track adapted to the rotating shaft.

[0014] The slider has a columnar protrusion at the center of one end face near the rotating disk. The rotating disk has corresponding elongated holes that mate with all the columnar protrusions. The length of the elongated holes is arranged along the radius of the rotating disk. The columnar protrusions are embedded in the elongated holes to form a sliding fit.

[0015] A drive handle is provided on one side edge of the rotating disk, and an opening groove is provided on the side wall of the iris mechanism to match the movement stroke of the drive handle.

[0016] The elastic constraint assembly includes at least one annular spring, and the side wall of the slider has a groove for accommodating the annular spring.

[0017] The number of ring springs is two.

[0018] The number of sliders is 12.

[0019] The ends and edges of the slider that contact the cable are rounded.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0021] 1) This utility model achieves significant technological progress by combining an innovative iris-type adjustment structure with an elastic constraint component, fundamentally avoiding the tedious operation of frequently changing molds during the production process and greatly improving work efficiency.

[0022] 2) By setting a ring spring, this utility model can sensitively and automatically adapt to the fluctuation of the outer diameter of the cable, effectively ensuring the uniformity of the outer diameter of the product and the tightness of the wrapping, thereby significantly improving the product quality.

[0023] 3) By rounding the contact area of ​​the slider, this utility model can protect the surface of the cable during the sizing process, effectively prevent scratches, and strongly guarantee the internal quality of the cable, thus meeting the core requirements of efficient and high-quality modern cable production. Attached Figure Description

[0024] Figure 1 This is an exploded structural diagram of an embodiment of the present invention.

[0025] Figure 2 This is a schematic diagram of the external structure of an embodiment of the present utility model.

[0026] Figure 3This is a diagram showing the combination of the slider and the annular spring in an embodiment of this utility model.

[0027] Figure 4 This is a structural schematic diagram of the maximum movement position of the slider in an embodiment of this utility model.

[0028] The attached figures are numbered and named as follows: 1. Mounting plate; 2. Rotary disk; 3. Slider; 4. Groove; 5. Ring spring; 6. Iris mechanism; 7. Central channel. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] like Figure 1-4 As shown, this utility model provides an adjustable sizing mold, including an iris mechanism 6. The iris mechanism 6 is a hollow cylindrical structure with one open end. A mounting plate 1 is fixed to the open end by bolts. Multiple fixed tracks are provided inside, and these tracks are curved tracks composed of semicircles and straight lines. Slider 3s are rotatably mounted on the fixed tracks, and the multiple sliders 3 together form an adjustable diameter central channel 7. The slider 3 is a triangular block structure. A rotating shaft is provided at one end of the slider 3 near the bottom of the iris mechanism 6, and the rotating shaft is positioned and inserted into the fixed track. A columnar protrusion is provided in the center of the other end face of the slider 3. A groove 4 is formed on the side wall of the slider 3, and an elastic constraint component is provided on the groove 4. The elastic constraint component includes at least one annular spring 5, which provides an elastic tightening force to all sliders 3 pointing towards the center of the central channel 7. When the sliders 3 are opened by external force, the annular spring 5 provides a continuous tightening force. The sliders 3 slide within the fixed tracks, and the sliders 3 restrain each other to avoid displacement. In this embodiment, there are 12 sliders 3 and 2 annular springs 5.

[0032] The ends and edges of the slider 3 that contact the cable are rounded. The rounding process not only forms the diameter change zone of the cable, but also protects the surface of the cable during the sizing process, effectively preventing scratches and ensuring the internal quality of the cable. At the same time, the stable tightening force of the ring spring 5 ensures a smooth sizing process.

[0033] A rotating disk 2 is positioned between the slider 3 and the mounting plate 1. The rotating disk 2 has elongated holes that mate with the columnar protrusions on all the sliders 3. The length of these holes is aligned with the radius of the rotating disk 2, allowing the embedded columnar protrusions to slide radially as the rotating disk 2 rotates. A drive handle is located on one edge of the rotating disk 2, and an opening groove on the side wall of the iris mechanism 6 matches the travel of the drive handle. When the drive handle is rotated, the rotating disk 2 rotates. The rotating disk 2, through its elongated holes, engages with the columnar protrusions on the sliders 3, converting the rotational motion into synchronous radial motion of all the sliders 3. This causes them to move closer together or stagger, thereby adjusting the diameter of the central channel 7. This allows for multi-size cable adaptation, eliminating the need for mold changes and improving production efficiency.

[0034] This utility model has two adjustment modes. One is adaptive adjustment: when the cable diameter is uneven, the tightening force of the ring spring can drive the slider to automatically shrink or enlarge the channel diameter to adapt to the cable size fluctuation and ensure the continuity of the cable outer diameter and the tightness of the wrapping tape. The other is fixed adjustment: by locking the position of the rotating disk 2, the channel diameter can be fixed to a specific size to meet the requirements of precise wire diameter control.

Claims

1. An adjustable sizing die, characterized in that, include: Iris mechanism (6), wherein a fixed track is provided inside the iris mechanism (6); Multiple sliders (3) are slidably disposed on the fixed track and together form an adjustable diameter intermediate channel (7). Rotary disk (2), which is rotatably disposed in the iris mechanism (6) and is connected to the slider (3) for driving all the sliders (3) to move synchronously to change the diameter of the intermediate channel (7); An elastic constraint assembly provides an elastic tightening force to all the sliders (3) pointing toward the center of the intermediate channel (7).

2. The adjustable sizing die according to claim 1, characterized in that, The iris mechanism (6) is a hollow cylindrical structure with one open end, and a mounting plate (1) is fixedly installed at the open end. The rotating disk (2) is located between the mounting plate (1) and the slider (3).

3. The adjustable sizing die according to claim 1, characterized in that, The slider (3) has a triangular block structure.

4. The adjustable sizing die according to claim 1, characterized in that, The slider (3) is provided with a rotating shaft at one end near the bottom of the iris mechanism (6), and the fixed track is a curved track adapted to the rotating shaft.

5. An adjustable sizing die according to claim 2, characterized in that, The slider (3) has a columnar protrusion at the middle of one end face near the rotating disk (2). The rotating disk (2) has corresponding elongated holes that cooperate with all the columnar protrusions. The length direction of the elongated holes is arranged along the radius direction of the rotating disk (2). The columnar protrusions are embedded in the elongated holes to form a sliding fit.

6. An adjustable sizing die according to claim 5, characterized in that, A drive handle is provided on one side edge of the rotating disk (2), and an opening groove adapted to the movement stroke of the drive handle is provided on the side wall of the iris mechanism (6).

7. An adjustable sizing die according to claim 1, characterized in that, The elastic constraint assembly includes at least one annular spring (5), and the side wall of the slider (3) is provided with a groove (4) for accommodating the annular spring (5).

8. An adjustable sizing die according to claim 7, characterized in that, The number of the ring springs (5) is two.

9. An adjustable sizing die according to claim 1, characterized in that, The number of sliders (3) is 12.

10. An adjustable sizing die according to claim 1, characterized in that, The ends and edges of the slider (3) that come into contact with the cable are rounded.

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