GB 31146-2014Safety of woodworking machines-Double end tenoning and/or profiling machines fed by chain or chians (English PDF)

3.1 Terms The term of each part shown in Figure 1. Explanation. 1

--- Machine halves; 2

--- upper platen; 3

--- chain frame; 4

--- infeed drive shaft. The term of each part of the machine 1

3.2 Definitions

3.2.1 Chain headed tenoners doubleendand/orprofilingmachinefedbychainorchains The machine is mainly designed for the use of a step at both ends of the workpiece opening tenon and/or shaping. Tenon or molding surface with a mounted machine A cutter bed each half or more of the spindle, saw and/or wheel processing. Workpiece placed and installed in a continuous chain or the like Transport pad or a pin on the device.

3.2.2 Machine halves machinehalf Part of the machine, from the rack, the chain axis, the upper platen and processing units. Each half of machining a workpiece end machine. One Or two machine halves can be moved to fit different sizes of workpieces.

3.2.3 Forming profile By the cutter, saw and shape of the end/or grinding wheel workpiece. Forming also includes fixed-length processing sheet metal.

3.2.5 Kickback ejection [GB 12557-2010, the definition 3.12]

3.2.6 Mechanical actuator mechanism machineactuator [GB 5226.1-2008, the definition 3.34]

3.2.8 Coasting time unbrakedrun-downtime [GB 12557-2010, the definition 3.15]

3.2.9 Integral closure integralenclosure Machine guards designed to be fused, and a method to reduce the noise of the machine, certain adjustment means in a closed in vitro unit. Each machine has its own half of the guards, on an adjustable half machine guards, according to the workpiece width adjustment.

3.2.10 Closed completeenclosure Fully enclosed machine tools, mainly used to reduce noise, allowing the operator to move freely inside, all machine settings and adjustments Full It included.

3.2.11 Mobile Machine displaceablemachine The machine is placed on the ground, using a fixed, it is equipped with a mobile device to make the machine between place, the device is usually wheel.

5.2.1 Safety and reliability of control systems

5.2.1.1 General requirements Of this standard, the safety control system from the initial device, such as a position sensor or actuator to the final mechanical actuating Structure of inputs, such as a motor or brake. The machine safety control components as follows:

--- Start (see 5.2.3);

--- Normal stopping (see 5.2.4);

--- Emergency Stop (see 5.2.5);

--- Movable interlocking guard (see 5.3.7); Interlocking

--- Portable with protective locking device (see 5.3.7); ; The control device (see requirements in 5.3.7.3) - "stop running"

--- trigger device, and limit device

--- Mode selection (see 5.2.7);

--- Mechanical feed (see 5.2.6);

--- Stepless speed regulation (see 5.2.8);

--- Spindle locking member (see 5.3.3.4);

--- Brake (see 5.2.4,5.2.5,5.3.4); Said safety control means at least should be GB/T 16855.1-2008 Table 10 category requirements in the design and manufacturing of Class 1, unless Section referenced otherwise. These control systems should be at least a "proven" to be elements and principles of design and manufacturing. Use 5.2.1.2 "proven" element This standard of "proven" and refers to the principle elements.

a) electrical components shall comply with the relevant national standards, industry standards, including the following components.

--- Forced off control switch (position sensors for interlocking guards as mechanically operated) and for auxiliary power The road relay should meet the requirements of GB 14048.5;

5.2.2 And 5.3. Interlock

e) with guard locking should meet the requirements of 5.3.7.1.

f) pneumatic and hydraulic components and systems should conform to EN983.1996 and EN982.1996 requirements. Additionally, the time delay means hard-wired directly connected to the control circuit on the control circuit of at least one million operations, the element from the "Stop - Run "control means first manual control element composition, and meet GB/T 16855.1-2008 table catalog requires

10 Class B. The continuously variable transmission control system according to the following principles and components. Actual speed or output frequency converters can be changed, for example, through its own inverter with a comparator or often optional external frequency ratio Comparing the electrical system to achieve. Inspection methods. Verify that the appropriate drawings and/or including circuit diagrams, inspection tools and components manufacturer issued All components comply with the appropriate Standard warranty.

5.2.2 manipulator position Starting tool for normal stop, the main electrical chain rack movement and control operation mode selection means should be placed together, and from Feeding visible position. If these control operations on a separate piece of the console, its location should be marked in the instruction manual (see 6.3). "Stop - run" control device should be placed in the device triggered, the operator can see the location of all the controlled movement [see also 5.2.7.2e)]. Emergency stop control member location see 5.2.5. If you use removable console, the cable connected to the machine tool applications. Inspection methods. Verify that the appropriate drawings and/or circuit diagrams, check the machine and make the appropriate functional tests on the machine.

5.2.3 Start Before starting or restarting the machine, all protective equipment should be in place and functioning, which is arranged by the interlock device and

5.3.7 Implemented. Start or restart only when the trigger start control device can take place. When the power supplied to the motor arbor, should be indicative. Direct way through close to the start control member or control member integral with the starter Warning lamp, or by using a two-position switch, the operator or by the control computer to achieve. Cut between the workpiece and machine parts and/or crush zone, the main control position should be visible, directly or indirectly (such as through a mirror or a camera head). Respectively starter motor and the shaft of each blade feed mechanism (see 5.2.6). See GB 5226.1-2008 electrical starter in 9.2.5.2. Inspection method. check the corresponding drawings and/or circuit diagrams; check the machine and make the appropriate functional tests on the machine.

5.2.4 stop controller

5.2.4.1 Normal stop The machine should be fitted with a stop control system. When triggered, stop the machine and cut off all the actuating mechanism of its power, so that the machine thoroughly Stopped. Normal stop function shall conform to the GB 5226.1-2008

9.2.2 Class 0 or Class 1, Machine "security and/or functions" required for the actual Now, by avoiding the risk of collision with the workpiece coasting or stationary cutter body between the tool body, allowing electrical holding brake (if provided) The braking power until completion. The above requirements shall structure of the control circuit to achieve. If the time delay, the delay at least equal to the maximum time of coasting. Time delay should be fixed, or the delay adjustment means is sealed.

5.2.5 If you press the emergency stop controllers also offer at least meet the above requirements, the emergency stop control can be considered to meet the normal stop control System requirements. In this case, it should take measures to prevent unexpected automatic start or restart (see also

7.5 GB 5226.1-2008). Inspection method. check the corresponding drawings and/or circuit diagrams, check the machine and make the appropriate functional tests on the machine.

5.2.4.2 Other stop control Other stops its control setting function should be integrated in GB 5226.1-2008

5.2.7 Mode Selection

5.2.7.1 General requirements Working, if you need to open some parts of the protective device and the machine is running, it should provide a mode selection switch. This control In addition to the emergency stop mode, the priority should be given to other control systems. Inspection method. check the corresponding drawings and/or circuit diagrams, check the machine and make the appropriate functional tests on the machine.

5.2.7.2 Tool adjustment mode For the tool, the mode selection switch should be provided. And meet the following requirements.

a) When the adjustment mode, normal (automatic) control mode does not work.

b) shall not cause any movement.

c) to adjust the position when moved, can cause feeding and arbor stops.

d) should be able to lock, for example, according to GB/T 15706-2012 requested

6.2.11.10 by locking operation.

e) the "stop - operation" control means for controlling the feed movement (also see 5.2.2). If for feeding "Stop - run" control continuous operation For more than 5min, feed and spindle should stop exercising. "Stop - run" control device should be installed on the mobile console.

f) power adjustment should "stop - operation" control means controls (see also 5.2.2).

g) after starting, all or part of the tool should be able to rotate. When the adjustment mode is turned on, capable of starting operation, the operator should be able to see Tool area.

h) should be placed a barrier means for preventing rotation of the tool into the protective cover from the horizontal, and the material properties, see 5.3.2. Inspection method. check the corresponding drawings and/or circuit diagrams, check the machine and make the appropriate functional tests on the machine.

5.2.7.3 Processing in fine tuning mode of tool feed The tool should provide fine-tuning mode selection switch. And meet the following requirements.

a) When the adjustment mode, normal (automatic) control mode does not work;

b) When using, do not lead to any adjustment operation;

9.2.2 Class 0, Class 1 and Class 2. If you use Class

2 Stop controller, and it can stop all movement in the setup mode, stop mode, or in the processing feed motion only, and it should meet Some specific mode all safety requirements related. When triggered, the normal stop stop order should be.

a) Stop axis movement;

b) stop the spindle and trigger brake (if provided); C) After the braking process is complete, cut off the brake (if installed electric braking); Accidental start when the machine is in the adjustment mode or processing mode feed motion, shall GB/T 19670-2005 requirements into Line protection. If you can not cut off all machine power actuators, should be GB/T 19670-2005 requirements in 6.4, Shutdown prison control. When a fault occurs, the monitoring system can cut down the power of these moving parts. Inspection method. check the corresponding drawings and/or circuit diagrams, check the machine and make the appropriate functional tests on the machine.

5.2.5 Emergency Stop Shall comply with the requirements of GB 16754-2008, also should be GB 5226.1-2008 requirements of 9.2.5.4.2 and 10.7 (Except GB 5226.1-2008 requirements in 10.7.4) install the emergency stop controller. It should meet the requirements of a normal stop 5.2.4. Emergency stop controller should be installed in the following locations.

a) loading and unloading at both ends of the position of each machine half;

b) Each mobile or fixed console;

c) from the "Stop - run" at the control device does not exceed 0.5m;

d) each mounted mode selector switch inside the shroud (see 5.2.7), from any location accessible. An independent emergency stop control their placement requirements, to meet a number of the above-mentioned requirements. Inspection method. check the corresponding drawings and/or circuit diagrams, inspection, measurement and on the machine for the corresponding function tests.

5.2.6 mechanical feed Tool power adjusted, only when all rotating spindles rotate without rotation of the spindle retreat by the largest non-cutting tool diameter design Area, and meet one of the following conditions, the feed can be opened.

a) limit switch of at least GB/T 16855.1-2008 class B;

b) with programmable electronic systems. Manually adjust the tool requirements, see 6.3, where manual adjustment including the "Stop - run" control device. Inspection method. check the corresponding drawings and/or circuit diagrams, check the machine and make the appropriate functional tests on the machine.