CN213888988U

CN213888988U - Special rubber tube withholding sleeve for automatic withholding machine

Info

Publication number: CN213888988U
Application number: CN202022610895.4U
Authority: CN
Inventors: 刘润平; 杨海波; 赵宁; 孙建博; 张傲; 刘帅; 郭贤亚; 钟治远; 姬中磊; 张良
Original assignee: Zhengzhou Saifu Fluid Technology Co ltd
Current assignee: Zhengzhou Saifu Fluid Technology Co ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-08-06
Anticipated expiration: 2030-11-12

Abstract

The utility model provides an automatic special rubber tube of machine of withholding withholds sleeve, penetrating and be cylindric barrel from top to bottom, barrel upper end an organic whole is equipped with the holding ring, the internal diameter of holding ring is less than the internal diameter of barrel, the barrel inner wall is equipped with a plurality of interior annular groove along the axis direction, be an interior protruding arris ring between two adjacent interior annular groove from top to bottom, barrel inner wall upper portion is equipped with the spacing ring that is located holding ring below and upper most interior annular groove top, the spacing ring internal diameter is less than the holding ring internal diameter and is greater than interior protruding arris ring internal diameter. The utility model has the advantages of simple structure and reasonable design, be applicable to the operation of withholding of automatic withholding machine specially, the reliability that rubber tube, sleeve and core are connected when ensureing to withhold to improve the leakproofness.

Description

Special rubber tube withholding sleeve for automatic withholding machine

Technical Field

The utility model belongs to the technical field of hydraulic hose high pressure joint equipment, concretely relates to automatic special rubber tube of withholding machine withholds sleeve.

Background

The fluid pipeline is a channel for transferring fluid medium, and the pipeline mainly comprises two modes of hoses and hard pipes for conveying fluid to other working elements, and is one of important auxiliary elements in the whole fluid operation system; compared with a hard pipe, the hose has the advantages of being easy and convenient to move, convenient to process, low in cost and the like, is more and more favored by different industries, and is applied to multiple fields of automobiles, mines, engineering vehicles, buildings and the like.

The hose and other connectors are connected in different types of connector forms, the connection mode of the hose connector and the transition connector in the field of mining equipment is a quick-insertion type, and the matching equipment, the process flow and the connector types of the form are relatively mature at present; however, the production of the hydraulic hose assembly can only depend on manual operation at present, the production steps comprise cutting and blanking of a capillary, preassembling of a sleeve and a core, and buckling and pressing, and finally the product formed by buckling and pressing is shown in fig. 1, wherein the reference numeral 1 in fig. 1 is a rubber tube, 2 is the sleeve, and 3 is the core, the lower end part of the core 3 extends into the upper port of the sleeve 2 and is contacted with the upper end of the rubber tube 1, namely, an annular gap is formed between the upper end surface of the rubber tube and the lower side surface of a positioning ring 4 integrally structured at the upper port of the sleeve 2, and an annular step surface 5 at the lower end part of the core. The manual operation mode has a series of problems of complicated working procedures, large deviation of the size of the assembly, button leakage, unstable button pressing value and the like. Seriously affecting the product quality, easily causing production accidents and harming the life health of underground operators. When an automatic withholding machine is adopted for operation, a rubber tube 1 is vertically clamped, a sleeve mechanical arm firstly buckles a sleeve 2 to the upper end head of the rubber tube 1, at the moment, the upper end face of the rubber tube 1 is in contact with the lower side face of a positioning ring 4 of an integrated structure at the upper end opening of the sleeve 2, the rubber tube 1 is excessively pre-installed in the sleeve 2, then a core mechanical arm inserts a core 3 into the sleeve 2 and the rubber tube 1, when a withholding link is operated, a withholding device withholds the rubber tube 1, a first annular step face 5 on the excircle of the core 3 is in contact with the upper end face of the rubber tube 1, but a second annular step face 6 on the excircle of the core 3 cannot be in contact with the upper surface of the positioning ring 4, so that the core 3 is not installed in place, and the core 3, the sleeve 2 and the rubber tube 1 are difficult to be completely withheld firmly. In addition, a plurality of inner convex edge rings 7 are arranged on the inner wall of the sleeve 2, the size of the inner convex edge rings 7 in the radial direction is small, and the sealing effect is poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve five above problems among the prior art, provide an axial pre-installation position between abutment sleeve and the rubber tube, make things convenient for the core pre-installation, sealed effectual special rubber tube withhold sleeve of machine of automatic withholding.

In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides an automatic special rubber tube of machine of withholding withholds sleeve, penetrating and be cylindric barrel from top to bottom, barrel upper end an organic whole is equipped with the holding ring, the internal diameter of holding ring is less than the internal diameter of barrel, the barrel inner wall is equipped with a plurality of interior annular groove along the axis direction, be an interior protruding arris ring between two adjacent interior annular groove from top to bottom, barrel inner wall upper portion is equipped with the spacing ring that is located holding ring below and upper most interior annular groove top, the spacing ring internal diameter is less than the holding ring internal diameter and is greater than interior protruding arris ring internal diameter.

The outer contour of the cross section of the inner convex edge ring is isosceles trapezoid.

The inner diameter of a circular groove formed on the inner wall of the barrel between the positioning ring and the limiting ring is larger than that of the inner circular groove.

The thickness of the limiting ring is 0.8-1.2 mm.

By adopting the technical scheme, because the limiting ring (integrated with the barrel) is arranged on the upper part of the inner wall of the barrel, when an automatic withholding machine is adopted for operation, the rubber tube is vertically clamped, the sleeve mechanical arm firstly withholds the upper end of the rubber tube 1 from the sleeve, the upper end face of the rubber tube is contacted with the lower side face of the limiting ring at the moment, the rubber tube is preassembled in place in the sleeve, then the core mechanical arm inserts the core into the sleeve and the rubber tube, then a withholding link is operated, the withholding device withholds the sleeve and the rubber tube into a whole, the first annular step face on the excircle of the core is contacted with the upper end face of the rubber tube, and the second annular step face on the excircle of the core is also contacted with the upper surface of the positioning ring, so that the core, the sleeve and the rubber tube are completely withheld firmly, and automatic withholding operation is realized.

The outer contour of the cross section of the inner convex edge ring is isosceles trapezoid, so that the size of the inner convex edge ring in the radial direction of the cylinder body can be increased, meanwhile, the depth of the inner annular groove is also increased, and the sealing performance of the inner wall of the cylinder body and the outer wall of the rubber pipe can be improved.

The inner diameter of the annular groove formed between the positioning ring and the limiting ring on the inner wall of the barrel is larger than that of the inner annular groove, so that the connection strength between the positioning ring and the limiting ring can be improved, the positioning ring and the limiting ring are ensured not to deform when being subjected to axial force, and good positioning and limiting effects are achieved.

The thickness of the limiting ring is set to be 0.8-1.2mm according to the models of different sleeves.

To sum up, the utility model has the advantages of simple structure and reasonable design, the operation of withholding that is applicable to automatic withholding machine specially ensures the reliability that rubber tube, sleeve and core are connected when withholding to improve the leakproofness.

Drawings

FIG. 1 is a schematic structural diagram of a rubber tube, a sleeve and a core after being buckled and pressed to form in the prior art;

fig. 2 is a schematic structural diagram of the present invention;

fig. 3 is a schematic structural view of the rubber tube and the core after being buckled and pressed.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

As shown in fig. 2 and 3, the utility model discloses an automatic detain special rubber tube of press and withhold sleeve, penetrating and being cylindric barrel 8 from top to bottom, barrel 8 upper end an organic whole is equipped with holding ring 4, and holding ring 4's internal diameter is less than barrel 8's internal diameter, and barrel 8 inner wall is equipped with a plurality of interior annular slot 9 along the axis direction, is interior convex arris ring 7 between two adjacent interior annular slot 9 from top to bottom, and barrel 8 inner wall upper portion is equipped with the spacing ring 11 that is located holding ring 4 below and upper portion interior annular slot 9 top, and spacing ring 11 internal diameter is less than holding ring 4 internal diameter and is greater than interior convex arris ring 7 internal diameter.

The outer contour of the cross section of the inner convex edge ring 7 is isosceles trapezoid.

The inner diameter of an annular groove 10 formed on the inner wall of the barrel 8 between the positioning ring 4 and the limiting ring 11 is larger than that of the inner annular groove 9.

The thickness of the spacing ring 11 is 0.8-1.2 mm.

Because the upper part of the inner wall of the barrel body 8 is provided with the limiting ring 11 (integrated with the barrel body 8), when an automatic withholding machine is adopted for operation, the rubber tube 1 is vertically clamped, the sleeve 2 is firstly withheld at the upper end of the rubber tube 11 by the sleeve manipulator, at the moment, the upper end surface of the rubber tube 1 is contacted with the lower side surface of the limiting ring 11, the rubber tube 1 is preassembled in the sleeve 2 in place, then the core manipulator inserts the core 3 into the sleeve 2 and the rubber tube 1, and then the core manipulator moves to a withholding link, the withholding device withholds the sleeve 2 into a whole, the first annular step surface 5 on the excircle of the core 3 is contacted with the upper end surface of the rubber tube 1, and the second annular step surface 6 on the excircle of the core 3 is also contacted with the upper surface of the positioning ring 4, and the core 3 is assembled in place, so that the core 3, the sleeve 2 and the rubber tube 1 are completely withheld firmly, and automatic withholding operation is realized.

The outer contour of the cross section of the inner convex edge ring 7 is isosceles trapezoid, so that the size of the inner convex edge ring 7 in the radial direction of the cylinder body 8 can be increased, meanwhile, the depth of the inner annular groove 9 is also increased, and the sealing performance of the inner wall of the cylinder body 8 and the outer wall of the rubber pipe 1 can be improved.

The inner diameter of a circular groove 10 formed between the positioning ring 4 and the limiting ring 11 on the inner wall of the barrel 8 is larger than that of the inner circular groove, so that the connection strength between the positioning ring 4 and the limiting ring 11 can be improved, the positioning ring 4 and the limiting ring 11 are ensured not to deform when being subjected to axial force, and good positioning and limiting effects are achieved.

The thickness of the limiting ring 11 is set to be 0.8-1.2mm according to the models of different sleeves 2.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automatic special rubber tube of machine of withholding withholds and withhold sleeve, includes penetrating and be cylindric barrel from top to bottom, barrel upper end an organic whole is equipped with the holding ring, and the internal diameter of holding ring is less than the internal diameter of barrel, and the barrel inner wall is equipped with a plurality of interior annular grooves along the axis direction, is an interior protruding arris ring between two adjacent interior annular grooves from top to bottom, its characterized in that: the upper part of the inner wall of the barrel body is provided with a limiting ring which is positioned below the positioning ring and above the uppermost inner annular groove, and the inner diameter of the limiting ring is smaller than that of the positioning ring and larger than that of the inner convex ridge ring.

2. The special rubber tube withholding sleeve of the automatic withholding machine as claimed in claim 1, characterized in that: the outer contour of the cross section of the inner convex edge ring is isosceles trapezoid.

3. The special rubber tube withholding sleeve of the automatic withholding machine as claimed in claim 2, characterized in that: the inner diameter of a circular groove formed on the inner wall of the barrel between the positioning ring and the limiting ring is larger than that of the inner circular groove.

4. The special rubber tube withholding sleeve of the automatic withholding machine as claimed in claim 1, 2 or 3, characterized in that: the thickness of the limiting ring is 0.8-1.2 mm.