Dispensing module, applicator head and nozzle holder for dispensing a fluid, in particular hot-melt adhesive

A technology of hot-melt adhesive and dispensing module, which is applied in the field of hot-melt adhesive and coating head, and can solve the problem of difficulty in adjusting the precise length of the stroke

Active Publication Date: 2014-07-09
NORDSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The exact length of the stroke is very difficult to adjust in practice and some adjustment tolerances have to be accepted

Method used

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  • Dispensing module, applicator head and nozzle holder for dispensing a fluid, in particular hot-melt adhesive
  • Dispensing module, applicator head and nozzle holder for dispensing a fluid, in particular hot-melt adhesive
  • Dispensing module, applicator head and nozzle holder for dispensing a fluid, in particular hot-melt adhesive

Examples

Experimental program
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Embodiment Construction

[0029] figure 1 The distribution module 1 is shown. The distribution module 1 has an actuator 3, which in this example is in the form of a solenoid valve. The actuator 3 is connected to the module housing 5 of the distribution module 1. The distribution module 1 also has an adapter 7 connected to the module housing 5. The nozzle holder 9 is connected to the adapter 7 of the dispensing module 1.

[0030] A connector seat 19 is provided on the actuator 3, and the connector seat 19 has an electrical connector 11 for supplying electric energy to control the actuator 3. In this embodiment, the module housing 5 has a two-piece structure. In this embodiment, the two-piece modular housing has a cylindrical housing 13 and a housing cover 15. The muffler 17 is provided in the housing cover 15. The muffler is screwed into the housing cover 15 of the module housing.

[0031] figure 2 show figure 1 Side view of the distribution module 1. Regarding repeated reference signs, please pay ...

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Abstract

The invention relates to a dispensing module (1 ) for an applicator head for dispensing a fluid, in particular hot-melt adhesive, comprising a module housing (5), a valve body accommodated in the module housing (5), an adapter (7) through which the valve body extends, comprising a proximal end (49) and a distal end (41 ), the distal end (41 ) being connected by means of a screw connection (51 ) to the module housing (5), a nozzle holder (9) which is adapted to be inserted into a matching recess in a base member of the applicator head, and one or a plurality of sealing elements (57, 59, 61 ) for sealing the nozzle holder (9) and the base member against each other in a fluid-tight manner. According to the invention, it is proposed that the nozzle holder (9) comprises a cavity (69) through which the valve body extends, is connected by means of a screw connection (51 ) to the proximal end (49) of the adapter (7), comprises a valve seat (79) which is adapted to cooperate with a valve head (31 ) of the valve body, and comprises an elongate section (75) upstream from the valve seat (79), within which the cavity (69) is limited to a narrow gap (77).

Description

Technical field [0001] The present invention relates to a dispensing module for a coating head for dispensing fluids, especially hot melt adhesives. [0002] The invention further relates to a nozzle holder for such a dispensing module and a coating head having such a module. Background technique [0003] The above-mentioned units are used in all industrial fields where fluids, especially adhesives, should be applied to the substrate through the application head. For this purpose, the applicator head usually has specially shaped nozzles. These nozzles may be nozzles with a slit-shaped or slot-shaped nozzle geometry, a single (jet) nozzle or a plurality of nozzle openings arranged intermittently. Depending on the corresponding field of use, the coating by the coating head is performed in a contact relationship with the substrate or in a non-contact relationship. In recent years, the demand for systems that provide high operating efficiency has increased significantly. In this wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B1/30B05C5/02
CPCB05B1/3046B05B1/306B05C5/0237B05B15/65B05C5/0225
Inventor 曼弗雷德·米勒沃尔夫冈·马克斯
Owner NORDSON CORP
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