CN2803656Y

CN2803656Y - Safety starter of cutting machine

Info

Publication number: CN2803656Y
Application number: CN 200520108155
Authority: CN
Inventors: 周和平; 彭雄心; 任玉德
Original assignee: Shenzhen Woer Heat Shrinkable Material Co Ltd
Current assignee: Shenzhen Woer Heat Shrinkable Material Co Ltd
Priority date: 2005-05-30
Filing date: 2005-05-30
Publication date: 2006-08-09
Anticipated expiration: 2015-05-30

Abstract

The utility model relates to a safety starter of a cutting machine. The utility model uses two starting keys which are connected in series to replace a starting key, and the positions of the two starting keys which are connected in series are far away from each other so that one hand can not simultaneously press down the two starting keys. As a result, the accident caused by the way that when one hand is used for clearing a cutter, the other hand carelessly starts the cutter can be avoided.

Description

A kind of safety starting device of cutting machine

Technical field

The utility model relates to a kind of safety starting device of cutting machine, is used for the operation control of machining equipments such as cutting machine, punch press, belongs to the Electromechanical Control technology.

Background technology

At present, the cutting machine on the market all is the singly-bound starting---promptly only need just can get into smooth by next start key equipment.In process of production, some parts of equipment need the action of often debugging, maintenance or cleaning.Especially the cutting knife position of hose cutting-off machine such as heat-shrinkable T bush, often running into edge of a knife jam needs the situation of manual cleanup, if this moment, a hand was in the operating state of cleaning, press start key accidentally because of the another hand of other people or oneself and just might cause the security incident of cutting off finger, the chance that this type of accident takes place in the reality is very many really.

The utility model content

The purpose of this utility model is to provide the safety starting device of a kind of structure and a kind of cutting machine simple to operate for eliminating above-mentioned potential safety hazard.

The purpose of this utility model is to be achieved through the following technical solutions:

In the circuit loop of needs control security, be included in primary circuit or the secondary circuit, with start key of start key replacement of two series connection, allow the position apart from each other of two tandem promoter keys, can't press two start keys simultaneously with a hand.

Compare with existing singly-bound starting technique, safety coefficient of the present utility model significantly improves, and the chance that accidents happened because mistake starts is almost nil.

Description of drawings

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

Fig. 1 is traditional singly-bound starting control loop schematic diagram.

Fig. 2 is two tandem promoter key control circuit theory figure that the utility model provides.

Fig. 3 is an embodiment in two tandem promoter key control loops providing of the utility model.

From Fig. 1 to Fig. 3, the structure or the function of each label representative are as follows:

1,1.1,1.2---start key; 2.1,2.2,2.3,---triple line; 3---breaker; 4.1---the A.C. contactor main contacts; 4.2---the A.C. contactor auxiliary contact; 4.3---ac contactor coil; 5---electrothermal relay; 6---insurance; 7---stop key; 8---cutter motor; 9---zero line.

The specific embodiment

As shown in Figure 3, the circuit of needs control security is arranged in the secondary circuit, start key (1.1) and (1.2) with two series connection, realize that by A.C. contactor auxiliary contact (4.2), ac contactor coil (4.3) and electrothermal relay (5) A.C. contactor main contacts (4.1) action is connected in the primary circuit midway, have only the start key (1.1) of two series connection and (1.2) when pressing simultaneously, cutter motor (8) just can start.

Because the position apart from each other of two tandem promoter keys (1.1) and (1.2), therefore can't press two start keys (1.1) and (1.2) simultaneously with a hand, avoid pressing the security incident that start key just might cause cut-out to point accidentally because of other people or own another hand.

Claims

1. the safety starting device of a cutting machine, comprise A.C. contactor main contacts (4.1), A.C. contactor auxiliary contact (4.2), ac contactor coil (4.3) and electrothermal relay (5) on primary circuit and the secondary circuit, it is characterized in that: contain start key (1.1) and (1.2) of two series connection, have only the start key (1.1) of two series connection and (1.2) to press simultaneously and could start cutter motor (8).

2. the safety starting device of a kind of cutting machine as claimed in claim 1 is characterized in that: the position apart from each other of two tandem promoter keys (1.1) and (1.2), can't press two start keys simultaneously with a hand.