Hose gluing machine head for pipeline repair

Abstract

The utility model provides a hose gluing machine head for pipeline repair, which comprises a machine head body, a runner and a core mold are sequentially arranged in the machine head body, the front part of the outer wall of the runner is of a hanger type structure along the axial direction, and the rear part of the outer wall of the runner is of a spiral structure. According to the hose gluing machine head for pipeline repair, the flow channel of the machine head adopts the combination of an axial clothes hanger type and a spiral type, materials are quickly melted and fully plasticized in the flow channel, glue is uniformly coated, the product quality is good, the size of the machine head is small, the matched heating power is small, and the energy consumption is low.

Description

Technical Field

[0001] The utility model relates to the field of hose repair, and more specifically to a hose glue coating machine head for pipeline repair. Background Art

[0002] Pipeline repair usually uses a glue coating machine to repair the internal and external corrosion.

[0003] In the prior art, the head flow channel of the glue coating machine adopts a radial hanger type, which has the disadvantages of high energy consumption due to the large heating power required to produce the large head, uneven heating of the material in the flow channel, and insufficient plasticization, which further affects the quality of the glue coated on the surface of the fiber tube, and easily forms a dead corner of the material flow in the head to produce stagnant material; at the same time, due to the large size of the head, it is troublesome to clean and inconvenient to assemble and disassemble. Utility Model Content

[0004] The utility model aims to provide a hose glue coating machine head for pipeline repair in view of the defects of the glue coating machine head.

[0005] The technical solution of the utility model is:

[0006] The utility model provides a hose glue coating machine head for pipeline repair, comprising a machine head body, wherein a flow channel and a core mold are arranged in sequence, the outer wall of the flow channel is a hanger-type structure at the front axial portion and a spiral structure at the rear portion.

[0007] Furthermore, the hanger-type structure is axially divided into two, two into four, or four into eight, and the end is connected to the spiral structure.

[0008] Furthermore, the spiral structure includes a plurality of single spiral grooves arranged obliquely and in parallel, and the distance between the single spiral grooves is greater than the width of the single spiral groove.

[0009] Furthermore, the cross-sectional area of ​​the single spiral groove×the total number=80% of the cross-sectional area at the feed inlet of the flow channel.

[0010] Furthermore, the length of the single spiral groove is half of the total length of the flow channel.

[0011] Furthermore, an annular groove is provided on the core mold of the machine head.

[0012] Furthermore, a pressure relief device is provided below the machine head body.

[0013] Beneficial effects of the utility model:

[0014] The utility model discloses a hose glue coating machine head for pipeline repair, the machine head flow channel adopts a combination of axial hanger type and spiral type, the material melts quickly in the flow channel, is fully plasticized, the glue is evenly coated with good product quality, and the machine head is small in size, the supporting heating power is small, and the energy consumption is low.

[0015] The core mold of the machine head of the utility model is provided with an annular groove. When the pressure in the machine head is too high, the material can be squeezed into the inner layer through the weaving gap of the fiber tube to achieve the purpose of releasing part of the pressure, avoiding the phenomenon that the logistics and the fiber tube are tightly attached to the core rod under high pressure and causing locking, so that the production can be carried out in an orderly manner.

[0016] The machine head of the utility model is provided with a pressure relief device, when the pressure in the machine head is too high, part of the material is released from the pressure relief hole, so as to reduce the pressure, so that the production line can be continuously and smoothly produced, and the product quality is guaranteed.

[0017] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0019] Figure 1 The schematic diagram of the head structure of the utility model is shown.

[0020] Figure 2 A schematic diagram of the development of the circumferential surface of the flow channel of the utility model is shown. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein.

[0022] like Figure 1 As shown, a hose glue coating machine head for pipeline repair includes a machine head body 1, in which a flow channel 2 and a core mold 3 are arranged in sequence, the outer wall of the flow channel 2 is a hanger-like structure 21 at the front axial portion and a spiral structure 22 at the rear portion; an annular groove 31 is provided on the core mold 3 of the machine head; a pressure relief device 4 is provided at the bottom of the machine head body 1.

[0023] In this embodiment, an annular groove is provided on the core mold of the machine head, and a pressure relief device is provided on the machine head; when the pressure inside the machine head is too high, the material can be squeezed into the inner layer through the weaving gaps of the fiber tube, or leaked out from the pressure relief hole; the purpose of releasing part of the pressure is achieved, avoiding the phenomenon of logistics and fiber tubes being tightly attached to the core rod under high pressure and causing locking, so that the production line can carry out continuous production smoothly and ensure product quality.

[0024] like Figure 2As shown, the hanger structure 21 is axially divided into two, two into four, and four into eight, and the end is connected to the spiral structure 22.

[0025] The spiral structure 22 includes a plurality of single spiral grooves 221 arranged obliquely and in parallel, and the distance between the single spiral grooves 221 is greater than the width of the single spiral grooves 221;

[0026] The cross-sectional area of ​​the single spiral groove 221 × the total number = 80% of the cross-sectional area at the flow channel feed port; the length of the single spiral groove 221 is half of the total length of the flow channel 2.

[0027] In this embodiment, the head flow channel adopts a combination of axial hanger type and spiral type. The material melts quickly in the flow channel, is fully plasticized, the rubber is evenly coated with good product quality, and the head is small in size, the supporting heating power is small, and the energy consumption is low.

[0028] The various embodiments of the utility model have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A hose glue coating machine head for pipeline repair, characterized in that It comprises a machine head body (1), wherein a flow channel (2) and a core mold (3) are sequentially arranged in the machine head body (1), wherein the outer wall of the flow channel (2) has a hanger-like structure (21) at the front axial portion and a spiral structure (22) at the rear portion.

2. The hose glue coating machine head for pipeline repair according to claim 1 is characterized in that: The hanger-type structure (21) is axially divided into two, two into four, and four into eight. The end is connected to the spiral structure (22).

3. The hose glue coating machine head for pipeline repair according to claim 1 is characterized in that: The spiral structure (22) comprises a plurality of single spiral grooves (221) arranged obliquely and in parallel, and the distance between the single spiral grooves (221) is greater than the width of the single spiral grooves (221).

4. The hose glue coating machine head for pipeline repair according to claim 3 is characterized in that: The cross-sectional area of ​​the single spiral groove (221) × the total number = 80% of the cross-sectional area at the feed inlet of the flow channel.

5. The hose glue coating machine head for pipeline repair according to claim 3 is characterized in that: The length of the single spiral groove (221) is half of the total length of the flow channel (2).

6. The hose glue coating machine head for pipeline repair according to claim 1 is characterized in that: An annular groove (31) is provided on the core mold (3) of the machine head.

7. The hose glue coating machine head for pipeline repair according to claim 1 is characterized in that: A pressure relief device (4) is provided below the machine head body (1).

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