CN2057885U

CN2057885U - 180 degree roundwood u-turn machine

Info

Publication number: CN2057885U
Application number: CN 88221330
Authority: CN
Inventors: 刘建平
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-12-13
Filing date: 1988-12-13
Publication date: 1990-06-06

Abstract

Disclosed is a log u-turn machine of 180 DEG belonging to the wood working machinery and aiming to solve the problems of unsafety, low log sawing quality and low log quality rate caused by the mixed sawing of the big head and the small head of the log. The structure is characterized in that the utility model adopts pneumatic push, guide post support and guiding, motoring (3-speed adjustment) and electric magnet braking. The utility model can be arranged and used for the wood making production line in the condition that original production process is not changed. Compared with other log u-turn machine of 180 DEG, the utility model has the advantages of simple structure, low cost, small size and high efficiency (the u-turn time at one time is between 6 to 16 seconds) and other characteristics and can satisfy the log conveying continuity on the production line.

Description

180 degree roundwood U-turn machine

180 degree log tune machines belong to woodworking machinery, are to realize that log saw is separated to add the man-hour microcephaly and advance the tune machinery of saw.

In the saw lumber production process, because log concentric reducer when producing material and sorting mixes.When saw was separated, big log volume recovery, saw headfirst separated qualification rate and all is significantly less than the microcephaly and saws the log of separating forward.Therefore needing saw is separated before will big log Rotate 180 degree headfirst, advances saw and saws and separate processing to reach the microcephaly.The car-type 180 degree log tune machines that use at present are installed in the vertical conveyer chain of log.It is longer that it exists the turn-round time, the vertical conveyer chain of log when implementing 180 degree log tunes in the necessary operation suspension, and tune finishes the vertical conveyer chain of back log could continue operation.Therefore it exists the vertical conveyer chain intermittent duty of log problem, promptly can not satisfy the continuity that log is carried on the saw lumber production line (output low especially except).And pneumatic or hydraulic pressure suspension type 180 degree logs tune machines are installed in the top of the horizontal conveyer chain of log.Though there is not intermittently operation problem of vertical chain in it, but because its version institute extremely, each when implementing 180 degree logs tunes action more as: block wooden pawl and fall locking log, the log that hoists, 180 degree rotations, the wooden pawl of card and descend and fall seven actions that reset of unclamping, hoist of log, the wooden pawl of card, turn-round time is long, and mechanical efficiency is low.Because the problem of above existence, the practice common before saw is separated is, how many big logs headfirst can reverse end for end how much to calculate (is transferred clean rate and output, technology, log material, material length, the mode of production etc. that direct relation is arranged, generally about 50%-85%), with the continuity that guarantees that log is carried, that is: guarantee to produce, and can not guarantee that big log headfirst all reverses end for end.

The purpose of this utility model is that be installed in the horizontal conveyer chain of log (the most suitable this technology, the vertical conveyer chain of log--the horizontal conveyer chains of log charging of adorn the horizontal conveyer chain of log of this tune machine--the vertical conveyer chain of log--twice or four road sport car band saws) structure in order to provide a kind of be lift 180 degree logs tune machines, it can reach the vertical conveyer chain of log under intermittently the situation of transporting log continuously not, finishes all 180 degree tunes (except the special circumstances) of big logs headfirst.

The purpose of this utility model is achieved in that 180 degree log tune machines are installed in the horizontal conveyer chain of log.The fender skid bar rises levelling redirect to the required tune of the horizontal conveyer chain of log from the vertical conveyer chain of log log.When implementing 180 degree log tunes, it also plays to block because of special circumstances make the turn-round time and redirect to the log that operating cross chain comes from the vertical chain of operating log when long, and supporting arm rises (landing is by conducting oneself with dignity) by guide pillar supporting and guide piston bar, the piston promotion of air by compression of being equipped with in the cylinder block.Supporting arm hoists and the speed of landing is controlled by foot-operated throttle grverning valve.180 degree rotations are finished by three speed asynchronous motor drives transmission worm screws and transmission worm gear engagement drive sliding sleeve, guide pillar, supporting arm, electromagnet is embraced the transmission worm screw in the moment that 180 degree tunes finish outage, to reach the accurate location (inertia is minimum) of range estimation operation 180 degree rotations.

The utility model is mounted in the horizontal conveyer chain of log, no matter because the log lateral transfer is to redirect on the vertical conveyer chain of log again, still directly separates for saw, and it all has the process of pausing a necessary intermittence.The travel time of self length when its dead time walks on the vertical conveyer chain of log more than or equal to it, the utility model is exactly to utilize the intermittent time of these logs when laterally transporting, in conjunction with characteristics such as the disposable turn-round time weak points of action of the present utility model few (supporting arm hoists, rotates to land to reset three and moves), can realize 180 degree logs tunes of whole required enforcements, and the vertical conveyer chain of (except the special circumstances) log and because of implementing the horizontal conveyer chain of 180 degree logs tune institute's pause logs of need not pausing.

The concrete structure of utility model, performance are provided by following examples and accompanying drawing thereof.Fig. 1 (a b) is according to the installation site of the 180 degree log tune machines that the utility model proposes and the schematic diagram (shift out and amplify 1) of structural principle

Fig. 2 is the pneumatic schematic diagram according to the 180 degree log tune machines that the utility model proposes.

Fig. 3 (a b) is the structure chart according to foot-operated throttle grverning valve in the 180 degree log tune machine pneumatic schematic diagrams that the utility model proposes.

Describe structural principle, using method and technical performance in detail below in conjunction with Fig. 1, Fig. 2, Fig. 3 according to the 180 degree logs tune machines that the utility model proposes.

As the support 5 of Fig. 1 b, 180 degree log tune machines, be installed in the centre of the horizontal conveyer chain 6 of log.Fender skid bar sliding sleeve 2 is fixed on the support 5, and fender skid bar 3 slides up and down along fender skid thick stick sliding sleeve 2 under the promotion of fender skid cylinder 4, redirect to log on the horizontal conveyer chain 6 of log to block or to align from the vertical conveyer chain 7 of log." V " template surface of supporting arm 1 is all with sawtooth pattern, to increase log in lifting and cornering stability.Supporting arm 1 is done the location with guide pillar 16 and is connected, and piston rod 17 usefulness are fixed on the supporting arm 1 by cap 9 (to be had about certain free gap 0.5mm with the supporting arm surface by tight back by cap 9 and piston rod 17).The stepped portions of the lower surface of supporting arm and piston rod 17 is equipped with axial thrust rolling bearing 10.Pass through water-separating gas filter 24 as Fig. 2 compressed air, pressure regulator valve 23, magnetic valve 22, the foot-operated throttle grverning valve 21 of warp, air cylinder base 20 enter cylinder block 15, act on the piston 18, make piston rod 17 promote supporting arms 1 and rise supporting arm and promote with piston rod 17, guide pillar 16 is finished for supporting and guiding and is promoted log hoist (landing is by conducting oneself with dignity).

As Fig. 1 (shift out and amplify 1), the outer slidingsurface of guide pillar 16 along last to the following vertical guiding keyway that has, the guiding keyway that the sliding surface of sliding sleeve 14 is equipped with two ends fixing feather key 25 and guide pillar 16 is slidingly matched, and sliding sleeve 14 is made matched in clearance with the form and the cylinder block 15 of socket.Transmission worm gear 12 usefulness flat keys 26 are fixed on the sliding sleeve 14, motor 11 drives transmission worm screw 8 and drives sliding sleeve 14 with 12 engagements of transmission worm gear, sliding sleeve 14 drives guide pillar 16 revolutions by feather key 25, because supporting arm 1 is fixed on the upper surface of guide pillar 16, when sliding sleeve 14 drove guide pillar 16 and supporting arm 1 revolution, piston rod 17 did not turn round.

The exhaust shutter 13 of adjusting rising or falling speed is equipped with on the top of cylinder block 15, and when piston hoisted position above exhaust shutter 13, the cylinder block compressed air was discharged, and produces impact to prevent guide pillar and cylinder block.As Fig. 3 in use, the operator can regulate foot-operated throttle grverning valve 21 to slow down or to suspend the lifting of supporting arm at any time according to the stable case of supporting arm when contact log or the landing.Three speed asynchronous motor 11 are selected in the revolution of supporting arm for use, and suitable rotating speed is adjusted and selected to the stable case the when operator can be according to the length of log and widely different commentaries on classics at any time.Breake Electromagnet 27 is installed on transmission worm screw 8 and the support 5 it and supporting arm 1 is gone up accurately at an arbitrary position stop (inertia is minimum).According to the speed of gyration of supporting arm and the length of log, be (also positioners such as travel switch or photoelectricity indication can be housed on support 5, locate automatically) that to realize log 180 degree tunes fully by the range estimation operation in use to realize back turnback.

Technical performance:

Supporting arm speed of gyration: 180 degree/2 seconds--180 degree/6 seconds

Supporting arm lifting altitude: 0--1.2 rice

Supporting arm rising or falling speed: 0--0.6 meter per second

Turn-round time of log: 6 seconds--16 seconds

Be suitable for log length: 2 meters--8 meters

Be suitable for log diameter: 200mm--900mm

Blast: 4kg/cm ²--6kg/cm ²

Claims

1,180 degree log tune machines have fender skid bar [3], and Breake Electromagnet [27] is ridden throttle grverning valve [21], it is characterized in that: guide pillar [16] supporting and the guiding of supporting arm [1] by being equipped with in the cylinder block [15], and the promotion of piston rod [17] piston [18] hoists; Three speed asynchronous motor [11] drive transmission worm screw [8] transmission worm gear [12], and sliding sleeve [14] is with disposable three kinds of speed revolution at any time.

2,180 degree log tune machines according to claim 1 is characterized in that: the fixing feather key (25) in two ends is housed in the sliding sleeve (14) cooperates with the guiding keyway of guide pillar (16).

3,180 degree log tune machines according to claim 2 is characterized in that: transmission worm gear (12) is fixed on the cylindrical of sliding sleeve (14) with flat key (26).

4,180 degree log tune machines according to claim 1 is characterized in that: supporting arm (1) adopts movingly with piston rod, and seat is on axial thrust rolling bearing, so that supporting arm (1) changes, piston rod (17) does not change.

5,180 degree log tune machines according to claim 4 is characterized in that: " ∨ " template of supporting arm (1), the surface is all with sawtooth pattern.

6,180 degree log tune machines according to claim 1 is characterized in that: compressed air is by water-separating gas filter (24), pressure regulator valve (23), the foot-operated throttle grverning valve (21) of magnetic valve (22), air cylinder base (20) enter cylinder block (15).

7,180 degree log tune machines according to claim 6 is characterized in that: speed governing has been equipped with on the top of cylinder block (15) and the exhaust shutter of the cushioning effect that hoists (13) landing buffering is leaned on damper piston (19).

8,180 degree log tune machines according to claim 6 is characterized in that: foot-operated throttle grverning valve (21) can be adjusted the rising or falling speed of supporting arm (1) at any time, and can stop on the optional position in lifting process.

9,180 degree log tune machines according to claim 1 is characterized in that: fender skid bar (3) by the promotion of fender skid bar cylinder (4), slides up and down to block and to align log in fender skid sliding sleeve (2).

10,180 degree log tune machines according to claim 1 is characterized in that support (5) is installed in the centre of the horizontal conveyer chain of log (6).