SU89055A1 - Installation for in-line automatic processing of sawn wood blanks into parts of the chair and assembling them into separate units - Google Patents

Description

A distinctive feature of the proposed facility is the simultaneous use of planing, milling and circular machines connected by a common drive and compulsory conveying devices and located on six synchronously operating production lines, of which five are parallel to each other and the poles are perpendicular to by him. In this case, four production lines serve both for processing parts and for assembling them into units.

FIG. 1 to 10 show the kinematic flow diagrams of machining parts, with FIG. 1 shows a side view of the processing scheme. The front legs of the chair; in fig. 2 - the plan of this scheme; in fig. 3 is a side view of the processing scheme of the projectile and lower traverse in fig. 4 - plan of this scheme; FIGS. 5 to 8, a processing scheme for tsarg with different positions of the location of the workpieces of the tsarg during processing; in fig. 9 is a processing scheme of the upper dough and in FIG. 10-circuit processing rear legs.

The production lines provide for the processing of wooden blanks into the following elements of the chair: front, proyozhki, tsarga, lower traverses (sprases), upper traverses and rear legs.

Based on the configuration of the listed parts and the dimensions of the cross-sections, the longitudinal processing takes place for each group of parts separately.

In a table stool, each part is considered frontal on all four sides, therefore each group of parts is subjected to longitudinal processing on four sides in order to obtain surfaces of high purity.

For each group of parts, the following is provided: a feed and process diagram.

1. Front legs. Rough blanks for the manufacture of front legs are folded into special bunkers, from where they are fed one by one with a special feeding mechanism to the gauge and

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rates for quadrilateral processing. After longitudinal processing, the parts for the manufacture of the front blades are cut off at a predetermined length. Then they are asked to nest nests in the direction perpendicular to each other for penetrations and to achieve the required accuracy when drilling nests, removing the tire and trimming; these operations are performed simultaneously at the uncontrolled position of the part, -: and the front leg and by pushing cutting tools on it.

2. Processing of prooves and lower traverses (shiros). The machining of these two parts is performed equally. Some difference differs: the cross-section of the iron-cutter and the drill prevents the possibility of machining them with one quadrilateral machine, therefore, a separate line is required for the longitudinal processing of each part. Sharpen the ends of the sprint and prozhek pr01; it is inserted either by removing the corresponding layer; Shavings with a cutting tool, or by squeezing the end of the blade with parts with punching tools. 3. Processing of the pipes. Since the length of the tsargya differs little from each other, rough blanks for their products are assembled into a single P1bote (bunker) and are served one at a time for four; Third party; After processing the sets of workpieces, but four processing units are required and - it is necessary -: onfng radio.

The hind bruise on both Koiiuax has quadrangular thorn ;, a side; e of the bicarm - at one end of the quadrilateral Thorns and at the other one of the bows, and the anterior side of the tsarg has spines at both ends that are included in the round; Ш lateral tsars.

Since the formation of spikes and eyelets is done automatically after the longitudinal treatment, the tsargues are captured in the emergency devices either from the very beginning (i.e., when applied to the stanza; that produces longitudinal processing}, or after the longitudinal processing and are not released from the grip until the end operations.

On the back and side barrels, the bones are made immediately after the processing, while the side bar is first cut off at an angle and then eyelets are made.

4. Processing the upper traverse :. The upper traverse is processed in the same way as other chair details. First, the workpiece is cut to length, subjected to four-sided processing one by one, and then single-sided spikes are removed at both ends on the Heii.

5. Processing rear pozhek. In addition to the four-sided longitudinal processing, on the hind legs cT.ia) is four; () 6 nests of the nest-L1; ch x none) sections i, s of the reciprocal multi-plane planes. In order to achieve sufficient accuracy, all the sockets are drilled at the same time. Therefore, the detail of the rear axle is installed in the special. The clamping tools and cutting tools are advancing on it.

In accordance with the foregoing, the following is obtained: kn; e 1at; chesky schema separate flow line.

1. The lines of the front legs (Figures 1--2}. The blanks of the front legs are laid in a nltabe /, 1c of which |), the individual bars are equipped with a manual pusher. The pusher is set in motion by a valuable gear 2 and is synchronized with all the mechanisms of the machine, i.e., it has a common electric drive. When leaving the lower 6pyei; a, the stack of piles is warned by a special support - your design. All the elements of the supporting device are changed by the same chain as this one. In the upper part of the side bar, free wolves 3 are installed, which support the headquarters, roll over the lower plane of the bar.

The processing of the front legs consists of the following operations. At the beginning, the lower surface of the bar is milled by a horizontal cutter 4. After that, the upper surface is machined. To preserve the straightness of the movement, the bar is held up by a system of free rollers 5. The side surfaces are machined simultaneously by two vertical mills 6.

After four-sided machining, the bar pushes under the non-splitting rollers 7, which lead the bar to the transverse machining position (making the spike and the D.1G jacks) (ProIozhsk). Nests are obtained as a result of axial movement of continuously rotating cutters 8 (to the depth of the nest) and their subsequent radial movement (along the nest).

One; temporarily, a pinch is made with the help of an end milling cutter 9, which, at the time of manufacturing the nest, has, in addition to the rotary dip, and axial displacement. At the same time, both the drills 8 and the milling cutter -9 tend to drag the beam in the opposite direction to the total flow. To prevent this, the latch 10 is arranged in the guide, which is recessed at the time of passage of the beam to the transverse processing position, and after the transition, due to the spring, returns to its normal position.

After the transverse processing, the finished legs (alternately right and left) are thrown out by rototika onto the belt of the exit conveyor.

2. Line progests (Fig. 3 and 4). The longitudinal processing of the proglands is not different from the processing of the front legs.

After the longitudinal processing, the bars are alternately fed to the values of i by a pusher under the argument of the phy rollers //, which rotate the nenpepbiBiio. These rollers bring the bar to the place of punching and hold it to the horses during the operation with the help of a locking device 12.

After a short pause to compensate for the possible lag of the bar for shtampovka due to insufficiently accurate work of the friction rollers, the ends of the bar are crimped by the scraper-scissors 13, put the engine into action from the synchronously rotating cam 14. The bar with the types is released from the stopper and the action of the same friction rollers goes through the open scissors to the tape.

3. Lines of the czar (fig-5-8). Blank blanks are supplied as a set of individual bars (4 pieces included).

The kit is submitted to the village of Prn Assistant Inclined KOI ;; :; 15. From this position, under the action of the chain pusher 16, the entire set of bars passes through four: side processing, which differs from the first two flows: only by the presence of composite cylindrical cutters for side processing. Here, a fold is chosen on one side of the bar and an overhang on the other.

After the quadrilateral processing of all four bars, trimming-filing is performed at the ends of the tsars. This operation is performed by four continuously rotating radial saws 17, which are connected to a common unit and receive a vertical nepe. Moving (feeding) from the camshaft, rotating synchronously with the entire system. When filing, the bars are fixed with paired levers.

After the bars are filed, the holding arms associated with periodically turning shafts are displaced in a vertical plane by 90 °. At the same time, the middle bar 18 rises to the mark of + 200 mm, and the side bars 19 descend by 200 mm (Fig. 6). Such a run | spanning1;; oi |) turning of the bars is necessary for supplying ILX to the mechanism of manufacturing sockets and plugs. All cutters 20 get when

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This working movement from sietemy synchronously operating cam schemes.

After the connection elements have been completed, the arms with the arms are rotated another 90 ° and the bars are set at the same mark (Fig. 7). Then, in the horizontal plane, they move, as shown in FIG. 8, and assembled into a tee-frame. In this movement, the nests are greased with glue using special fixed aunts.

The assembled tee is crimped with vaimes and raised to the height of the roller by means of extrusion.

In the free space under the frame is suitable for the next cycle of the second frame, which is the same with the previous one. In this way, a stack of frame tees is accumulated, the number of which depends on the rate of glue drying.

The dried top frame is subjected to the operation of drilling sockets for the cylindrical spikes of the front legs. After that, the finished tee goes to the conveyor belt.

Thus, the three teles of the tee are modified; the fourth (rear) is processed in a special stream, directed perpendicularly to the first three lines.

4. Line traverse (lower cross bar back). The longitudinal and transverse processing of the yoke is not different from the processing of the projectile. Upon exiting the dies, the crosshead with the same chain pusher. Pushes into the driving rollers, which guide them to the position of the backrest assembly. In this case, the first of the two cross-arms receives a transverse displacement by the amount of the gap between the cross-beams directly at the assembly position. Traverses are assembled without sizing the spikes.

5.Spring lines (Fig. 9) (upper back bar of the back) - The conceptual diagram of the longitudinal processing of the grind does not differ from the previous ones (using pushers, horizontal and vertical cutters). Transverse treatment does not differ from the treatment of the posterior side region. Sampling is carried out using a pair of vertically moving cutters 21, which receive rotation from the camshaft 22. A pusher 23 is used for lateral movement of the spindle. The finished spreader with spikes lubricated with glue enters the position of the backrest assembly.

5. The line of the rear legs (Fig. 10). When machining horizontal rear foot surfaces, the pattern of the previous flows remains unchanged (using chain feed 2 and horizontal cutters 4). When machining the side surfaces that have a piece of surface, the vertical cutters 24 receive a transverse movement by means of cams 25 mounted on the shaft 26, with each polishing of a straight moving workpiece corresponding to the strict position of the cutter. As a result, the cutting edge of the cutter follows the contour of the workpiece, removing fine chips along the entire length.

Thus, the processed buttresses (pair) come to the reset position 57, from where they go to the bottom position 2Y, turning on 90. Here the drilling of the nests for all the spikes is made. Drills work symmetrically on both sides. The radial movement of the drills is carried out with the help of the cam circuit 29, which gives i ;: and axial movement.

The treated legs, not changing their position, are fed by a chain feed to the position of assembly 30, where by this moment all polished parts ready for assembly have been delivered. The latter is carried out in waves, which pull the legs onto the transverse parts. Crimped backrest is discharged from the vim and the same chain drive is output to tape.

Subject and purpose of the article

Claims (2)

1.Installation for automated flow processing of sawn wooden blanks into the details of the chair and assembling them into separate units, as shown, with the combined use of planing, milling and circular sawing machines connected with a common drive and forced transporting devices and located -: ufecTM are synchronous operating flow ling x, of which five are directed parallel to each other, and the brushes are perpendicular to them. 2. The form of installation is carried out in accordance with clause I, namely that four production lines serve both for: machining parts and for assembling them into units. 7g ... V / X fj .J.geiG, ooo t-Eoo5- o, n% f / position 15 l position 17 Ifc ff f466 .and SO ISr) 03uau -r  7 ife. 6 -f no3uu j yy W- 2 /