CN2885566Y

CN2885566Y - Ceramic core of plastic welding gun core

Info

Publication number: CN2885566Y
Application number: CN 200620018013
Authority: CN
Inventors: 丁兆兰
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-03-23
Filing date: 2006-03-23
Publication date: 2007-04-04
Anticipated expiration: 2016-03-23

Abstract

The utility model discloses a ceramic core of lance core of plastic welding gun relating to the elaboration implement of plastic, with a goal for offering a ceramic core of plastic welding gun's lance core to enable the heating wire rotating the ceramic core to engage uniform wind, characterized in that the ceramic core is cylindrical and is provided with a spiral slot capable of rotating the heating wire, and a center hole is located on the center. Along the circumferential orientation of the ceramic core's cylinder, an open wide through-hole and a closed through-hole are distantly located. The open wide through-hole crosses the pottery porcelain core and is open widely relatively to the external surface along the axial orientation of the ceramic core. The closed through-hole crosses the pottery porcelain core and is closed relatively to the external surface along the axial orientation of the ceramic core. The utility model enables the heating wire rotating the ceramic core to engage uniform wind, thus can avoid the local overheating of the heating wire, prolong the lance core's life time, and be extensively used by the welding gun for welding plastics.

Description

The ceramic core of plastic welding gun rifle core

Technical field

The utility model relates to the processing of plastic instrument, relates in particular to a kind of ceramic core of plastic welding gun rifle core.

Background technology

The characteristics of thermoplastic are the deliquescing of being heated, and cooling back hardening is heated again, deliquescing is again cooled off and hardening, can repeatedly repeat moulding, and performance remains unchanged substantially, and the processing characteristics that it is good makes in its many fields that are widely used in industrial and agricultural production and daily life.

The method of attachment of thermoplastic mainly contains welding and glueds joint two kinds.Welding method has saving of labor, efficient, high-quality and advantage that cost is low, and therefore, many important plastics connect and all adopt welding method processing on the industrial production.And in many welding methods, what often adopt is the hot-air welding, and its advantage is that soldering appliance is simple, and processing ease, and welding are applicable to the processing of multiple thermoplastic.Its Fundamentals of Welding are that compressed air is by being equipped with the welding gun of heating wire, spray about 500 ℃～600 ℃ hot compressed air from torch neck, by this hot air welding rod and mother metal, the welding rod head is clamminess, but does not form molten drop, mother metal also is heated in quilt weldering place and is clamminess simultaneously, like this, under the thickness state, by applying certain pressure welding rod and mother metal are linked together, promptly form weld seam after the weld cooling.

The structure of present plastic welding gun mainly is made of nozzle, rifle shell, rifle core, air compartment, hold down gag, handle etc., and wherein the rifle core is its critical component.The main composition of existing rifle core comprise ceramic core and on the heating wire that centers on, the method that centers on of the structure of ceramic core and heating wire directly influences the performance of welding gun and the service life of rifle core, so centering on of the structure of ceramic core and heating wire is the production of present plastic welding gun rifle core and the key link in the research and development.

In the prior art, the rifle cored structure that has adopts the cross ceramic core, on the periphery of cross ceramic core, offer screw slotting, the two ends of heating wire are centered around the fluting of cross ceramic core from an end of ceramic core is parallel, the middle part of heating wire is bigger around curvature the other end of ceramic core, thereby it exists the heating wire wind-engaging inhomogeneous and local local easily fusing makes the defective that shortens the service life of rifle core around curvature is too big.

The utility model content

The utility model is intended to overcome the existing defective of plastic welding gun rifle core of the prior art, provide a kind of and make that heating wire centers on smoothly, wind-engaging evenly, the ceramic core of the plastic welding gun rifle core of long service life.

For reaching above-mentioned purpose, the technical solution adopted in the utility model is: a kind of ceramic core of plastic welding gun rifle core, it is characterized in that, ceramic core is cylindrical, which is provided with can be around the screw slotting of heating wire, the center is provided with central through hole, on the circumferencial direction of the cylinder of ceramic core, spaced apart being provided with opened wide through hole and sealing through hole, open wide through hole and open wide along the outer surface that the ceramic core axial direction penetrates the also relative ceramic core of ceramic core, the sealing through hole seals along the outer surface that the ceramic core axial direction penetrates ceramic core and relative ceramic core.

That preferably, opens wide through hole and sealing through hole is equal to or greater than the coiling diameter of the heating wire that centers on along the ceramic core degree of depth radially in screw slotting.

Preferably, be provided with the little fluting of its degree of depth and ceramic core axially parallel on an end face of ceramic core, little fluting is communicated with around the sealing through hole at terminal place and the central through hole of ceramic core with the heating wire that centers in screw slotting.

Preferably, each unlimited through hole and two sealing through holes evenly are spaced on the ceramic core circumferencial direction, open wide through hole and all are trapezoidal with the sealing through hole.

Compare with the ceramic core of existing plastic welding gun rifle core, the ceramic core of plastic welding gun rifle core of the present utility model has the following advantages:

1, owing to makes the heating wire one-way spiral around ceramic core, one end directly is connected with binding post, the other end is worn back by the ceramic core central through hole and is connected with binding post, avoided unrolling of heating wire, thereby the deep camber of having eliminated heating wire curves, reduce the heating wire internal stress, prolonged the service life of heating wire;

2, adopt blind hole and the spaced structure of open aperture, make the heating wire wind-engaging even, avoided the hot-spot of heating wire, strengthened the thermal efficiency of plastic welding gun, prolonged the service life of plastic welding gun rifle core.

Description of drawings

Fig. 1 is the schematic diagram of utilization as the plastic welding gun rifle core of the ceramic core of the plastic welding gun rifle core of an embodiment of the present utility model;

Fig. 2 is the end view drawing of the plastic welding gun rifle core of Fig. 1.

The specific embodiment

Fig. 1 is the schematic diagram of utilization as the plastic welding gun rifle core of the ceramic core of the plastic welding gun rifle core of an embodiment of the present utility model, and Fig. 2 is the end view drawing of the plastic welding gun rifle core of Fig. 1.

As shown in Figure 1, 2, utilization is as the plastic welding gun rifle core of the ceramic core of the plastic welding gun rifle core of an embodiment of the present utility model, comprise ceramic core 10, heating wire 20, junction block 30 and binding

post

41,42, ceramic core 10 is cylindrical, which is provided with screw slotting 50, heating wire 20 is centered around in the screw slotting 50 of ceramic core 10, and junction block 30 is arranged in the end outside of ceramic core 10, and the two ends of heating wire 20 are fixedly connected on the junction block 30 by binding post 41,42.The center of ceramic core 10 is provided with central through hole 60, heating wire 20 is centered around on the ceramic core 10 along screw slotting 50 one-way spirals of ceramic core 10, one end of heating wire 20 directly is fixedly connected on the junction block 30, and the other end is fixedly connected on the junction block 30 by the central through hole 60 of ceramic core 10.

On the circumferencial direction of the cylinder of ceramic core 10, spaced apart being provided with opened wide through hole 70 and sealing through hole 80, open wide through hole 70 and penetrate ceramic core 10 and the outer surface sealing of ceramic core 10 relatively along ceramic core 10 axial directions, sealing through hole 80 penetrates ceramic core 10 and the outer surface sealing of ceramic cores 10 relatively along ceramic core 10 axial directions, and that opens wide through hole 70 and sealing through hole 80 is equal to or greater than the coiling diameter of heating wire 10 along ceramic core 10 degree of depth radially.

End face upper edge ceramic core 10 at ceramic core 10 junction blocks 30 far away is axially arranged with little fluting 90, little fluting 90 connects heating wire 10 around the sealing through hole 80 at terminal place and the central through hole 60 of ceramic core 10, and an end of heating wire 10 junction blocks 30 far away is fixedly attached to junction block 30 by sealing through hole 80, little fluting 90 and central through hole 60 successively.

Each unlimited through hole 80 and two sealing through holes 70 evenly are spaced on ceramic core 10 circumferencial directions, open wide through hole 70 and all are trapezoidal with sealing through hole 80.

Claims

1, a kind of ceramic core of plastic welding gun rifle core, it is characterized in that, ceramic core is cylindrical, which is provided with can be around the screw slotting of heating wire, the center is provided with central through hole, and on the circumferencial direction of the cylinder of ceramic core, spaced apart being provided with opened wide through hole and sealing through hole, open wide through hole and open wide along the outer surface that the ceramic core axial direction penetrates the also relative ceramic core of ceramic core, the sealing through hole seals along the outer surface that the ceramic core axial direction penetrates ceramic core and relative ceramic core.

2, the ceramic core of plastic welding gun rifle core as claimed in claim 1 is characterized in that, that opens wide through hole and sealing through hole is equal to or greater than the coiling diameter of the heating wire that centers on along the ceramic core degree of depth radially in screw slotting.

3, the ceramic core of plastic welding gun rifle core as claimed in claim 2, it is characterized in that, be provided with the little fluting of its degree of depth and ceramic core axially parallel on an end face of ceramic core, little fluting is communicated with around the sealing through hole at terminal place and the central through hole of ceramic core with the heating wire that centers in screw slotting.

4, the ceramic core of plastic welding gun rifle core as claimed in claim 3 is characterized in that, each unlimited through hole and two sealing through holes evenly are spaced on the ceramic core circumferencial direction, opens wide through hole and all is trapezoidal with the sealing through hole.