DE3018178A1 - Automatic bristle applicator in tooth brushes mfr. - has several bristle fastening stations as prodn. line, with each station performing only single step - Google Patents

Abstract

The bristles application to toothbrushes etc. is spread over several processing stations in the form of plugging machines, which combined form a production line. Each machine only performs one and the same process step. In this way a series of bristle holes are fitted with bristle tufts always in the same linear direction. Thus the sum of the application steps, required according to the type and number of bristles, produces a complete fitting of the brush head in one continuous work step. The holders with the aligned brush heads move on a conveyor past the different stations.

Description

Patent description

Name of the machine for the production of brushes invention: (in particular Toothbrushes) The invention relates to a machine working in an automatic Operation brush body, especially toothbrushes, with the bristles intended for this equipped by different work processes on several stations (tamping machines) be divided into kind of an assembly line, so that the individual tamping machine always performs the same operation and the sum of the various operations causes the brush body to be fully equipped with bundles of bristles.

By shifting the various work processes that have been carried out so far were only done by one machine, on several tamping machines that only have one Making part of the bristle fitting will be a significant simplification and acceleration of the stuffing process reached.

Brushes are now manufactured on automatic bristle machines. The brush bodies made of wood or plastic are placed in the machine and one Drilling or tamping tool demonstrated. The drilling or tamping tool is on one fixed point; the object, the brush body, is controlled by means of a controller the drilling / tamping tool from hole to hole according to the hole pattern of the brush body demonstrated.

Have all the holes or bundles of a brush body been drilled or

stuffed, a next brush body is demonstrated. The number of tours this tamping machine is limited by the control system, which works horizontally, vertically, back and forth, swinging 50 - 100 (for trestle bundles), must make movements. So far, these machines have been running at approx. 240 tours, machines have been around for a short time in the test with 400 tours with twin tamping machines (tamping machine with 2 Tamping tools), and up to 600 tours for single tamping machines (tamping machine with 1 tamping tool).

The conversion of such machines to a different brush model is very time consuming; not only must a different control system be installed, but the magazines for the brush body feed and the holders for the brush bodies in the machine must be removed and others installed.

The aim of the invention is to avoid these disadvantages and the machine To speed up the manufacture of the brushes and make them more efficient.

The subject of the new manufacturing machine for brushes is a production line, which is electronically controlled, has a much higher performance and is significantly can be switched to a different brush model more easily.

The brush bodies are placed on a conveyor belt. On the conveyor belt there are slides. The slides are with tried and tested, variable clamping jaws provided that the can accommodate different brush bodies. The slides with the brush bodies on them are placed on the conveyor belt conveyed from processing station to station. In the 1st Statipn only one Cross row of the brush drilled or plugged; in the 2nd station the 2nd transverse row, etc., etc. (see sketch). The drilling / tamping tool is of the tried and tested type Control is electronic, but only in one direction.

The drilling / plugging tool is mounted on the station so that it can be adjusted to the specific line or electronically adjusts itself. The drilling / tamping tool can also be swiveled by approx. 200 for trestle bundles (V position).

The slide runs through all stations, so that at the end of the Drilling / darning tool stations the brush is full.

This is followed by further finishing processing of the bristles: Shear off, profile milling, grinding, cleaning, blowing out, etc.

and the further processing of the brush body, such as branding, Mill sprue, etc.

If a station (drilling / tamping tool) is due to a minor malfunction fails, the entire production line can continue working, since before each station a buffer zone with several slides standing in waiting position is arranged is.

If a station (drilling / stopping tool) is caused by a longer malfunction fails, it appears at the end of the drilling / tamping stations, there are 2 - 3 stations there in reserve, a new station on the failed position. By a bundle displacer, similar to a sewing machine foot, the stuffed bristles are pushed to the side, so that the stuffing tool has enough freedom to accommodate a missing row of bristles between to put two rows of stuffed bristles.

The advantages of the innovation are: 1. Great performance through simple, linear electronic control; 2. easy changeover to a different brush model; 3. The ldiirston are completed on the same machine; it can be a packing machine connected directly.

An embodiment is shown below with reference to the attached Description of the drawing: Figure 1 shows a schematic representation of the stuffing process, divided into several stations 4, 5, etc. The brush bodies 1 have clamping jaws 2 provided on the conveyor belt 3 attached.

The conveyor belt 3 connects the individual stations 4, 5, etc.

among themselves.

The individual tamping machines 6, 7, etc. are located on the different ones Stations 4, 5, etc. The tamping tool is housed in each of the tamping machines.

Figure 2 shows the view of a brush holder (object holder) 9 with Conveyor belt 10.

Claims (1)

Claim: machine for the automatic assembly of brush handles, in particular for toothbrushes, with bristles (bristle machine), characterized in that that the tamping process is carried out on several processing stations (tamping machines (4) (5) (6) (7) is distributed and the tamping machines together form a production line, in that each tamping machine only ever carries out one and the same work process and Always in the same linear direction a row of brush holes with bundles of bristles stuffs so that the sum of depending on the type of bristle and the number of eggs required and specified in the machines a complete tamping process The brush body is fitted in one continuous operation.