阅读说明：本技术 一种电缆挤橡连续硫化工艺的辅助装置 (Auxiliary device for cable rubber extrusion continuous vulcanization process ) 是由 巫春生 徐志敏 万长东 张家文 毕亮亮 胡宏生 于 2020-06-19 设计创作，主要内容包括：本发明公开了一种用于电缆挤橡连续硫化工艺的辅助装置,设置于电缆硫化管内,其包括使电缆保持与硫化管中心的自适应机构以及该自适应机构的安装架,所述安装架为与电缆硫化管同心固定的环形支架,所述自适应机构由至少两个自适应支架构成,所述自适应支架包括一可弹性伸缩的支架安装杆,所述自适应支架能够使得电缆趋向于保持在硫化管的中心,同时减弱自重对于其偏心的影响,从而提高了电缆的性能和使用寿命,避免了电缆在制造加工环节的浪费。(The invention discloses an auxiliary device for a cable rubber extrusion continuous vulcanization process, which is arranged in a cable vulcanization pipe and comprises a self-adaptive mechanism for keeping a cable and the center of the vulcanization pipe and an installation frame of the self-adaptive mechanism, wherein the installation frame is an annular support concentrically fixed with the cable vulcanization pipe, the self-adaptive mechanism consists of at least two self-adaptive supports, each self-adaptive support comprises an elastically telescopic support installation rod, and the self-adaptive supports can enable the cable to tend to keep the center of the vulcanization pipe and weaken the influence of self-weight on the eccentricity of the cable, so that the performance and the service life of the cable are improved, and the waste of the cable in the manufacturing and processing links is avoided.)

1. The utility model provides an auxiliary device for crowded rubber continuous vulcanization technology of cable sets up in the cable vulcanization pipe, its characterized in that, including make the cable keep with the self-adaptation mechanism who vulcanizes the pipe center and this self-adaptation mechanism's mounting bracket, the mounting bracket be with the concentric fixed ring carrier of cable vulcanization pipe, self-adaptation mechanism comprises two at least self-adaptation supports, but self-adaptation support includes an elastic telescopic's support mounting pole, the end of support mounting pole radially is fixed in the mounting bracket is inboard, and the front end of support mounting pole is the clamping part of U type for the shape to the centre gripping is fixed with an arc running roller mechanism, arc running roller mechanism includes the limiting plate of arc running roller, arc running roller both sides, passes the dead axle at both sides limiting plate and arc running roller center, the clamping part centre gripping is on the dead axle in the two limiting plate outsides, self-adaptation mechanism constitutes by an arc connecting piece end to end between the dead axle of its inside self-adaptation support through Annular assembly, and constitute between the arc running roller and hold circular or nearly circular shape mouth of passing through of cable, the arc connecting piece includes that arc connecting pipe, elastic expansion are at the arc at arc connecting pipe both ends in sleeve pipe and the arc in and the first spring between the sleeve pipe and the arc connecting pipe, the fixed axle one end that its closed on is buckled to the other end in the arc is inlayed to rotate with the fixed axle and is connected.

2. The auxiliary device as claimed in claim 1, wherein the mounting frame is mounted in the cable vulcanizing tube via a ball bearing.

3. The auxiliary device for the cable rubber extrusion continuous vulcanization process as claimed in claim 1, wherein the front end of the arc-shaped inner sleeve is provided with a circle of engaging teeth, the fixed shaft is provided with an annular engaging groove matched with the engaging teeth, and the engaging teeth have a T-shaped or dovetail-shaped cross section.

4. The auxiliary device for the cable rubber extrusion continuous vulcanization process of claim 1, wherein the bracket mounting rod comprises a telescopic sleeve and a U-shaped clamping portion, the telescopic sleeve comprises an outer mounting tube and an inner sleeve, and a second spring is mounted between the inner tube and the outer mounting tube.

5. The auxiliary device for the cable rubber-extruding continuous vulcanization process as claimed in claim 4, wherein an annular spring seat is disposed at the bottom of the inner sleeve, the second spring is sleeved outside the inner sleeve, and the bottom of the second spring is fixed on the annular spring seat, an elastic force adjusting mechanism is disposed at the upper end of the second spring, the elastic force adjusting mechanism includes an adjusting knob, an adjusting upper cover, a bevel gear set, an adjusting rod and an adjusting gear, a mounting groove corresponding to the adjusting knob is disposed at the upper portion of the outer mounting cylinder, the adjusting knob is rotatably embedded in the mounting groove perpendicular to the surface of the outer mounting cylinder, the bevel gear set is disposed at the bottom of the adjusting knob, the adjusting rod is externally connected with the bevel gear set, the adjusting rod vertically penetrates through the mounting groove and is fixed through a bearing, the adjusting gear is fixed at the other end of the adjusting rod, the adjusting upper, the outer circular surface is provided with a circle of vertical tooth grooves, the adjusting upper cover is sleeved on the outer side of the inner sleeve and is in threaded connection with the inner sleeve, the upper end of the second spring abuts against the lower end face of the adjusting upper cover, and the tooth grooves on the outer circular surface of the adjusting upper cover are meshed with the adjusting gear.

6. The auxiliary device for the cable rubber extrusion continuous vulcanization process of claim 5, wherein the outer mounting cylinder is a two-section structure, and a threaded connection part for dividing the outer mounting cylinder into two sections is arranged at the bottom of the outer mounting cylinder.

7. The auxiliary device for the cable rubber extrusion continuous vulcanization process of claim 1, wherein the arc-shaped connection pipe has a two-segment structure, and a threaded connection part for dividing the arc-shaped connection pipe into two segments is provided at the middle segment of the arc-shaped connection pipe.

8. The auxiliary device as claimed in claim 1, wherein the end of the arc-shaped inner sleeve that is connected to the arc-shaped connecting pipe and points to the inner wall of the arc-shaped connecting pipe is provided with a first spring mounting seat, the first spring is sleeved outside the arc-shaped inner sleeve, two ends of the arc-shaped connecting pipe are provided with inward beam ends, one end of the first spring abuts against the beam ends, and the other end of the first spring is fixed on the first spring mounting seat.

9. The auxiliary device for the cable rubber extrusion continuous vulcanization process as claimed in claim 1, wherein the clamping portions at both sides are each provided with a strip-shaped hole having a width equal to the diameter of the fixed shaft, and both ends of the fixed shaft are provided with a stopper through the strip-shaped holes, and the movable shaft can slide along the strip-shaped holes in the radial direction of the mounting frame.

Technical Field

The invention relates to the technical field of cable manufacturing, in particular to an auxiliary device for a cable rubber extrusion continuous vulcanization process.

Background

Rubber-coated cables have many advantages over plastic-coated cables: good flexibility, oil resistance, torsion resistance, wear resistance and the like. When the rubber coated cable is used for producing the sheath, the cabling cable core is coated with sheath rubber through the extrusion type mold core mold sleeve, then vulcanization is carried out through the vulcanization pipeline filled with high-temperature and high-pressure steam, the continuous vulcanization process is a vulcanization process of extruding and vulcanizing to form one process, the extruding and vulcanizing processes are combined together and have higher extrusion speed, the production efficiency is higher, meanwhile, the cable directly enters the vulcanization pipeline after being extruded and wound on the roller without being wound again, the surface of the cable does not need to be coated with talcum powder or wound with a cloth tape, and a large amount of auxiliary materials can be saved.

The existing continuous vulcanizing equipment can be divided into three types of continuous vulcanizing machines according to different positions of a vulcanizing pipe: the horizontal continuous vulcanizing machine and the inclined continuous vulcanizing machine are linear vulcanizing pipelines, and the suspended continuous vulcanizing machine generally adopts a suspended curve type vulcanizing pipeline, so that the problem of surface scratch caused by the fact that a cable is suspended in a linear vulcanizing pipe under the action of dead weight and tension of the cable is solved, but the manufacturing and the installation of the suspended pipeline are complex.

However, cables produced by the existing continuous vulcanization equipment all have a certain degree of eccentricity problem, and the problems of breakage, breakdown and exposure appear earlier when the cable cross-linked sheath layer is used for a long time at a thin point, so that the use is influenced, safety accidents can be caused, the reject ratio of the eccentricity greater than a preset standard is high, the production cost of an enterprise is increased, and the quality and the public praise of cable products are influenced.

Disclosure of Invention

The invention aims to provide an auxiliary device for a cable rubber extrusion continuous vulcanization process, which can replace a tension wheel in a vulcanization pipe, improve the roundness of a cable, reduce the eccentricity of the cable and prolong the service life of the cable.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides an auxiliary device for a cable rubber extrusion continuous vulcanization process, which is arranged in a cable vulcanization pipe and comprises an adaptive mechanism for keeping a cable and the center of the vulcanization pipe and an installation frame of the adaptive mechanism, wherein the installation frame is an annular support concentrically fixed with the cable vulcanization pipe, the adaptive mechanism consists of at least two adaptive supports, each adaptive support comprises an elastically telescopic support installation rod, the tail end of each support installation rod is radially fixed on the inner side of the installation frame, the front end of each support installation rod is a U-shaped clamping part, an arc-shaped roller mechanism is clamped and fixed on the front end of each support installation rod, each arc-shaped roller mechanism comprises an arc-shaped roller, limiting plates on two sides of the arc-shaped roller and a fixed shaft penetrating through the limiting plates on two sides and the center of the arc-shaped roller, the clamping parts are clamped on the fixed shafts on the outer sides of the two limiting plates, and the adaptive mechanism is formed by connecting the fixed shafts of the adaptive supports inside the adaptive mechanisms end to end through The subassembly, and constitute between the arc running roller and hold circular or nearly circular shape mouth of passing through of cable, the arc connecting piece includes that arc connecting pipe, elastic expansion are at the arc at arc connecting pipe both ends and are gone into the sleeve pipe and the arc in and the first spring between the arc connecting pipe, the fixed axle one end that its was close to is buckled to the other end of the interior sleeve pipe of arc to rotate with the fixed axle and be connected.

As an optimization of the invention to the above scheme, the mounting rack is mounted in the cable vulcanizing tube through a ball bearing. Through ball bearing installation the mounting bracket can make the relative vulcanization of mounting bracket pipe have the rotational degree of freedom to be more convenient for with vulcanization pipe coaxial arrangement, the rotation of mounting bracket can the surface of rounding cable simultaneously, makes the circularity that the cable was qualified for the next round of competitions better, and the eccentricity is lower.

As the optimization of the invention to the scheme, the front end of the arc-shaped inner sleeve is provided with a circle of embedded teeth, the fixed shaft is provided with an annular embedded groove matched with the embedded teeth, and the section of the embedded teeth is T-shaped or dovetail-shaped.

As an optimization of the invention to the above scheme, the bracket mounting rod comprises a telescopic sleeve and a U-shaped clamping portion, the telescopic sleeve comprises an outer mounting tube and an inner sleeve, and a second spring is mounted between the inner tube and the outer mounting tube.

As the optimization of the scheme, the bottom of the inner sleeve is provided with an annular spring seat, the second spring is sleeved outside the inner sleeve, the bottom of the second spring is fixed on the annular spring seat, the upper end of the second spring is provided with an elasticity adjusting mechanism, the elasticity adjusting mechanism comprises an adjusting knob, an adjusting upper cover, a bevel gear set, an adjusting rod and an adjusting gear, the upper part of the outer mounting cylinder is provided with a mounting groove corresponding to the adjusting knob, the adjusting knob is perpendicular to the surface of the outer mounting cylinder and is rotatably embedded in the mounting groove, the bottom of the adjusting knob is provided with the bevel gear set, the bevel gear set is externally connected with the adjusting rod, the adjusting rod vertically penetrates through the mounting groove and is fixed through a bearing, the adjusting gear is fixed at the other end of the adjusting rod, the adjusting upper cover is annular, the inner circular surface of the adjusting upper cover is provided with threads, the outer circular surface, the upper end of the second spring abuts against the lower end face of the adjusting upper cover, and a tooth groove in the outer circular face of the adjusting upper cover is meshed with the adjusting gear. The pretightening force of the second spring can be adjusted through the elasticity adjusting mechanism in the application, for example, the second spring in the bracket mounting rod below the cable can be adjusted to be in a pre-tensioned state during use, so that the cable can be better positioned at the center of the vulcanization pipeline, and the eccentricity of the cable can be adjusted.

As the optimization of the scheme of the invention, the outer mounting cylinder is of a two-section structure, and the bottom of the outer mounting cylinder is provided with a threaded connection part for dividing the outer mounting cylinder into two sections. The adoption of the structure is more convenient for the installation and maintenance of the device.

As an optimization of the invention to the above scheme, the arc-shaped connecting pipe is of a two-section structure, and a threaded connection part for dividing the arc-shaped connecting pipe into two sections is arranged at the middle section of the arc-shaped connecting pipe. The adoption of the structure is more convenient for the installation and maintenance of the device.

The invention optimizes the scheme, one end of the arc-shaped inner sleeve, which is connected with the arc-shaped connecting pipe, points to the inner wall of the arc-shaped connecting pipe, and is provided with a first spring mounting seat, the first spring is sleeved outside the arc-shaped inner sleeve, two ends of the arc-shaped connecting pipe are provided with inward beam openings, one end of the first spring is propped against the beam openings, and the other end of the first spring is fixed on the first spring mounting seat.

As an optimization of the scheme of the invention, the clamping parts at the two sides are respectively provided with a strip-shaped hole with the width equal to the diameter of the fixed shaft, two ends of the fixed shaft penetrate through the strip-shaped hole and are provided with a limiting head, and the moving shaft can slide along the strip-shaped hole in the radial direction of the mounting frame. This structure can make the cable size scope that can adapt to from adaptive mechanism bigger, and more tight back has been adjusted at the second spring simultaneously, can also leave certain surplus through the slip in bar hole, thereby avoids the too tight influence cable surface quality that curved roll wheel pressed.

The invention has the beneficial effects that:

(1) firstly, the self-adapting mechanism of the invention is arranged coaxially with the cable vulcanizing pipeline, and the cable enters from the axis of the vulcanizing pipe when entering the vulcanizing pipe by the rubber extruding machine through traction during the continuous vulcanizing process, so the cable can keep better concentricity with the self-adapting mechanism, and the eccentricity phenomenon generated by the gravity of the cable on the vulcanizing process can be corrected by the first spring and the second spring when passing through the self-adapting mechanism of the invention, for example, the common cable is subjected to dead weight to ensure that a cross-linked sheath below a cable conductor is thicker than the upper part, in the invention, when the cable is influenced by dead weight to ensure that the lower part of the cable is thicker, the lower sheath layer receives larger extrusion force, and the second spring below is subjected to tensile deformation to force the influence of dead weight of the cable to weaken the influence of dead weight of the cable, thereby avoiding the further expansion of the eccentricity of the cable, and ensuring that the eccentricity of the whole cable is maintained in a smaller range, the overall qualification rate of the cable and the performance of the product are improved.

(2) Secondly, self-adaptation mechanism in this application can adapt to the diameter and pass through at the cable of certain size scope, that is to say this application when making the cable of different size specifications in the cable manufacturing process, can both use to when improving the performance of cable product and alleviateing the eccentricity, avoided the process of change with the regulation, thereby improved the manufacturing production efficiency of cable.

(3) Because the cable is in a suspension curve state in the vulcanizing pipe under the action of self weight, the cable is easy to scrape the vulcanizing pipe wall, and the quality problem of the cable surface is caused, in the application, after the coaxiality of the cable and the vulcanizing pipe is reduced, namely, the cable inevitably presses the arc-shaped roller wheels below the cable when passing through the self-adaptive mechanism of the application, so that the arc-shaped roller wheels below the cable are pressed to enable the second springs to generate elastic force, meanwhile, the self-adaptive mechanism is connected through the arc-shaped connecting pieces, after the arc-shaped roller wheels below the cable are pressed to deflect downwards, the first springs of the arc-shaped connecting pieces are compressed to generate tensile force to weaken the trend of downward deflection, and when the cable deflects downwards, namely the cable is not positioned in the center of the device, the cable inevitably presses the arc-shaped roller wheels at two sides, so that the bracket mounting rods at the side of the arc-shaped roller wheels are pressed, and the, namely, the second spring in tension and the first spring in compression work together to avoid the cable from being deflected to generate scraping, so that the problem that the cable is scraped in the vulcanizing tube is greatly reduced.

(4) One section cable conductor after generally starting up can be abandoned because of eccentricity and appearance quality in continuous vulcanization technology, and the finished product rolling is explained at the drum after eccentricity and outward appearance are good, has caused certain waste of material, adopts the device in this application can reduce the extravagant phenomenon of cable of certain degree, makes the cable of vulcanization technology output reach ideal eccentric standard more soon.

Drawings

FIG. 1 is a schematic view of an installation structure of an auxiliary device of the cable rubber extrusion continuous vulcanization process in a vulcanization pipeline.

FIG. 2 is a schematic cross-sectional view of an auxiliary device for a cable rubber extrusion continuous vulcanization process according to the present invention.

Fig. 3 is a schematic structural view of the arc-shaped connection member of fig. 1.

Fig. 4 is a side view of the clamping portion of fig. 1.

Fig. 5 is a schematic structural view of the spring force adjustment mechanism in embodiment 3.

Fig. 6 is a partially enlarged view of a portion a in fig. 5.

The device comprises a base, a vulcanizing tube, a cable, a 3, an installation frame, a 4, a support installation rod, a 41, a clamping part, 411, a strip-shaped hole, 412, a limiting head, a 42, an outer installation barrel, 421, an installation groove, 422, a bearing, 43, an inner sleeve, 431, an annular spring seat, 44, a second spring, 45, an elastic force adjusting mechanism, 451, an adjusting knob, 452, an adjusting upper cover, 453, a bevel gear group, 454, an adjusting rod, 455, an adjusting gear, 5, an arc roller mechanism, 51, an arc roller, 52, a limiting plate, 53, a fixed shaft, 6, an arc connecting piece, 61, an arc connecting tube, 611, a beam port end, 62, an arc inner sleeve, 621, a first spring installation seat, 63, a first spring, 64, an embedded tooth, 65, an annular embedded groove, 7, a ball bearing, 8 and a threaded connection part.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.