CN2371034Y - Heater for improved heat pressing device - Google Patents

Abstract

The utility model relates to a heat supply device of a heat pressing device, particularly a heat supply device of a heat pressing device for bookbinding machines, which comprises a heat retaining insulating coat 1, a heat retaining insulating cover, a heating member, two PCT ceramic plates, two electrode slices and two insulating boards with rigidity, wherein the inner side surfaces and the outer side surfaces of the PCT ceramic plates are respectively connected with one electrode slice, and elastic insulators are arranged between the electrode slices which are arranged at the outer side surfaces of the PCT ceramic plates and the insulating boards with rigidity. Consequently, the utility model has the advantages of high heat productivity of the PCT ceramic plates and long service life.

Description

The hot-press arrangement heater of improvement

The utility model relates to a kind of heater of hot-press arrangement, especially refers to the heater of hot-press arrangement in the binder.

At present, in the hot-press arrangement on the external binder, be to add the what is called " fire tube " that insulating barrier and high temperature resistant filler constitute with heater strip, make brass calandria heating and as heater, because " fire tube " needs the long period preheating, service life is short, but also needs the corresponding temperature control component of configuration, and cost is also high and unreliable.In the last few years; the domestic PTC potsherd that adopted replaces " fire tube "; not only heating temp is stable; but also not needing to dispose temperature control component and holding circuit thereof, volume is also little simultaneously, and its cost is reduced; but; owing to the electrode slice loose contact of PTC potsherd and power supply, still can not bring into play the heating effect of PTC potsherd, the service life that also can reduce the PTC potsherd simultaneously.

In view of this, the purpose of this utility model provides a kind of hot-press arrangement heater of improvement, and it can keep the electrode slice of power supply to contact with the good of PTC potsherd, improves heating effect and has prolonged life-span of PTC potsherd.

The purpose of this utility model is achieved in that it comprises an insulation insulating coating, an insulation insulating lid, a calandria, two PTC potsherds, two electrode slices and two rigid insulation plates, wherein connect an electrode slice respectively, it is characterized in that: between the electrode slice of PTC potsherd lateral surface and rigid insulation plate, elastic insulator is set in the inside and outside side of PTC potsherd.

Described elastic insulator is a silicon rubber.

Owing to adopt such scheme: can improve one times of PTC potsherd caloric value, and prolong its service life greatly.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 the utility model exemplary embodiments schematic diagram.

The A-A cutaway view of Fig. 2 the utility model exemplary embodiments Fig. 1.

Fig. 3 the utility model user mode schematic diagram.

Among the figure: 1, insulation insulating coating, 11, screw, 2, the insulation insulating lid, 3, calandria, 31, through hole, 4, the PTC potsherd, 5, electrode slice, 6, elastic insulator, 7, the rigid insulation plate, 8, mould.

Present embodiment comprises an insulation insulating coating 1, an insulation insulating lid 2, a calandria 3, two PTC potsherds 4, two electrode slices 5, two elastic insulators 6 and two rigid insulation plates 7, as shown in Figure 1, 2, and wherein:

Insulation insulating coating 1 and insulation insulating lid 2 constitute a dismountable electric insulation and adiabatic obturator, all form with the glass-epoxy cast, insulation insulating coating 1 is the rectangle hollow container, and its two side is provided with the screw 11 that can screw respectively, belongs to prior art.

Calandria 3 is rectangular conductive, heat carriers of brass material, be connected the insulation insulating coating with its lower surface at 1 the interior end, these calandria 3 centers have a through hole 31, and be exposed in the insulation insulating coating 1 diapire hole, be connected with a mould 8 with this through hole 31 again, have upper and lower mould 8 in the hot-press arrangement of every binder, each mould 8 connects a heater (as shown in Figure 3), belongs to prior art.

Two PTC potsherds 4 are separately positioned on the both sides of calandria 3; (its internal resistance raises with temperature to be increased as the heating plate (thermal source) of calandria 3; has the constant temperature function); do not need temperature control and various holding circuit; therefore; calandria 3 volumes are reduced greatly, and temperature do not have return difference (temperature control error can reach ± 1 ℃), belong to prior art.

Two electrode slices 5 directly are connected respectively between PTC potsherd 4 inboards and calandria 3 sides and on PTC potsherd 4 lateral surfaces, belong to prior art.

Two elastic insulators 6 are electrode slice 5 outsides that thermal insulation and electrical insulator (as: silicon rubber) are separately positioned on PTC potsherd 4 lateral surfaces, and the outside of this two elastic insulator 6 is provided with rigid insulation plate 7 respectively, and these two rigid insulations plate, 7 outsides contact with relative screw 11 terminations of insulation insulating coating 1.

The operation principle and the advantage thereof of present embodiment are as follows:

Outside insulation insulating coating 1 both sides, regulate two screws 11, pushing rigid insulation plate 7, to elastic insulator 6, and pressure is pressed to the electrode slice 5 in the outside equably, this electrode slice 5 can be with PTC potsherd 4 (unavoidably can there be the error in geometrical form of waveform, bending in its Surface Machining), to keep good electrical contact, thereby can increase the heat that two electrode slices 5 (as: connecing the 220V civil power) produce at PTC potsherd 4, pass to mould 8 through calandria 3, the thermal source during for the hot pressing of 8 pairs of plastics bookbindings of mould pipe (not shown); Simultaneously, PTC potsherd 4 is fragility materials, evenly electrically contacts with electrode slice 5, and it is even to make it produce heat, and PTC potsherd 4 is not prone to slight crack, fragmentation, and therefore, also prolong greatly service life.

Claims (2)

1, a kind of hot-press arrangement heater of improvement comprises an insulation insulating coating (1), an insulation insulating lid (2), a calandria (3), two PTC potsherds (4), two electrode slices (5) and two rigid insulation plates (7), wherein connect an electrode slice (5) respectively, it is characterized in that: between the electroplax sheet (5) of PTC potsherd (4) lateral surface and rigid insulation plate (7), elastic insulator (6) is set in the inside and outside side of PTC potsherd (4).

2, by the hot-press arrangement heater of the described improvement of claim 1, it is characterized in that: described elastic insulator (6) is a silicon rubber.

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