CN1151345A

CN1151345A - Splicing method for medium plate of wooden plywood

Info

Publication number: CN1151345A
Application number: CN 95121110
Authority: CN
Inventors: 郭则洛; 张子昌
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-12-28
Filing date: 1995-12-28
Publication date: 1997-06-11

Abstract

A butt-splice method for middle veneers of plywood includes rotary cutting, shearing, flatening, drying, making notches, lip butt-splice, pressing wood strip, hot pressing for shaping and cutting edges, and features that produced plywood has flat and smooth surface, high toughness and quality.

Description

Wooden plywood's intermediate plate to splicing method

The invention belongs to the glued board manufacture field, relate to a kind of wooden plywood intermediate plate to splicing method.

Usually, the glued board intermediate plate is to splicing method, and how employing is artificial splices, and at first the intermediate plate dual-side that rotary-cut is got off is sheared neatly with plate shearing machine, and process Exposure to Sunlight or oven dry are the smooth drying of intermediate plate.Air-dry depositing through five, six days sheared the intermediate plate dual-side neatly then for the second time, after behind the gluing, intermediate plate is placed on the bottom panel piecing together.To the method for piecing together is that a side with two intermediate plates connects, and one connects one carry out successively.Because to dry, be out of shape by normal the appearance by wet feed for intermediate plate, though through shearing; also can cause the out-of-flatness of plate face, side is irregular, behind gluing; the flexural deformation phenomenon is even more serious; so mutually to assembly the time, slit and overlapping appears in joint regular meeting, when carrying toward hot press; be subjected to extraneous collision and vibrations; also the position is put in the original assembly of regular meeting's change intermediate plate, makes face veneer the injustice and the bar ridge occur, and quality does not reach national Specification.The manufacturer that has for reaching quality standards, reduces the slit or the ridge, just adopt the method that reduces intermediate plate quantity, that is, and with one or two boards butt joint, like this, face veneer is smooth, or a ridge only occurs, quality has improved, but intermediate plate whole do, shear, gluing, when piecing together, time-consuming, the failure ratio of intermediate plate is high, cause production cost too high, economic benefit is affected.

Other has a kind of glued board intermediate plate to splicing method, adopts plant equipment to piecing together exactly, with sewing machine the neat face alignment surface of intermediate plate side to piecing together, slit and overlapping can not appear, the glued board that hot press is produced is the seamless no ridge equally.Like this, just must use with intermediate plate whole do give pressure equipment and sewing machine, still, this complete equipment investment need hundreds of thousands unit, for middle-size and small-size manufacturer, has certain difficulty, so the employing plant equipment is not easy to popularize to the assembly technology.

The groove makine machine that the objective of the invention is to avoid above-mentioned weak point of the prior art and provide a kind of employing to invent is in person opened bank, gap with intermediate plate, avoid the slit and the bar ridge, and can guarantee product quality effectively, and small investment, cost is low, and the artificial flanging of wooden plywood's intermediate plate easy and simple to handle is to splicing method.

The objective of the invention is to realize by following technical solution: the artificial flanging of wooden plywood's intermediate plate is to splicing method, comprise rotary-cut, have one's hair trimmed, smooth drying, to piece together, the hot press forming technology step, it is characterized in that opening bank after the smooth drying, gap, flanging is to piecing together, press hot repressing moulding behind the batten, the processing step that carries out cutting edge then:

Open bank, be processed into vertical dual-side on the same surface of intermediate plate stepped;

Gap, side two ends of intermediate plate being opened bank processing cut into breach;

To piecing together, bottom panel is completed, will be placed on the bottom panel artificial flanging behind the intermediate plate surface coating to piecing together;

Press batten, will give the batten surface coating that processes earlier, and the vertical vertical insertion intermediate plate indentation, there of batten and intermediate plate is compressed;

Hot-forming, the topped bottom panel in intermediate plate surface is hot-forming;

Cutting edge is pressed the batten vestige to cut out intermediate plate and is removed.

The present invention compared with prior art, open bank owing to adopt, gap processing intermediate plate, artificial flanging is to piecing together and pressing batten intermediate plate to be compressed processing steps such as hot repressing moulding, so the slit and the bar ridge can not appear in intermediate plate, can not occur dislocation when hot pressing, the glued board of producing is smooth, the no ridge, and can increase the toughness of glued board, regulation is up to state standards, can guarantee product quality effectively, can compare favourably to have small investment with the product of plant equipment to the manufacturing of assembly technology, cost is low, easy and simple to handle, characteristics such as be easy to popularize, can be suitable for the extensive use of middle-size and small-size plywood production producer.

Description of drawings of the present invention is as follows:

Fig. 1 is a process frame chart of the present invention;

Fig. 2 opens the bank schematic diagram for glued board intermediate plate of the present invention;

Fig. 3 is a glued board intermediate plate gap schematic diagram of the present invention;

Fig. 4 is that glued board intermediate plate pressure of the present invention, limit are to piecing together schematic diagram;

The invention will be further described below in conjunction with drawings and Examples: the artificial flanging of wooden plywood's intermediate plate is to splicing method, comprise rotary-cut, have one's hair trimmed, smooth drying, open bank, gap, flanging is to piecing together, press batten, hot-forming, processing steps such as cutting edge, to produce three-ply board is example, the intermediate plate that rotary-cut from timber is got off at first, have one's hair trimmed through plate shearing machine in both sides, process Exposure to Sunlight or dryer are the smooth drying of intermediate plate, deposit several days air-dry after, open bank with my the glued board intermediate plate groove makine machine of invention, vertical dual-side with the same surface of intermediate plate, be processed into stepped (as shown in Figure 2), opening the bank width is 12mm, and thickness is 1/2nd of intermediate plate thickness;

Gap, the glued board intermediate plate cornering machine with my invention with the two ends that intermediate plate one side is opened the bank working position, cuts into breach (as shown in Figure 3), and width is 12mm, and length is 30mm;

To piecing together, bottom panel is completed, intermediate plate is placed on the bottom panel artificial flanging to piecing together behind the glue spreader gluing, at first since an end, intermediate plate there be not the end of a side of gap towards starting, the one side that is processed into stairstepping upwards, the side that second intermediate plate do not have gap is processed into stair-stepping one and faces down too towards an end of starting, overlapping with first mutual flanging of intermediate plate, overlapping width is 12mm, and the 3rd intermediate plate do not have a side of gap equally towards an end of starting, is processed into stair-stepping one side upwards, at overlapping, second intermediate plate pushed down the 3rd intermediate plate, and overlapping width is 12mm, makes overlapping be in identical state (as shown in Figure 4), like this, the rest may be inferred, and artificial flanging is to piecing together intermediate plate, till required glued board specification.

Press batten, adopt the offal of bottom panel, being made into width is 30mm, and length is the bottom panel batten of 80mm, with the batten surface coating, and with batten in two intermediate plates, the first overlapping anastomosis, half to first side direction that does not have gap, is stretched into from top to bottom in intermediate plate place jaggy in two ends, an end that is exposed should be pressed in second intermediate plate above, batten presses and will compress with intermediate plate is vertically vertical.In the second overlapping anastomosis, two ends intermediate plate position jaggy, batten is to the direction of the 3rd jagged side of intermediate plate, from top to bottom, batten stretches into half, and the end that batten is exposed should be pressed on second intermediate plate, batten press will with vertical the compressing in the vertical both sides of intermediate plate.Like this, the rest may be inferred uses batten, till required glued board specification.

Hot-forming, flanging to piecing together, is pressed the topped bottom panel in intermediate plate surface of batten, it is hot-forming to send into hot press.

Cutting edge presses intermediate plate the batten vestige to cut with the cutting edge machine, can produce intermediate plate to seamless, the no ridge of assembly place, smooth surface, smooth glued board.

Processing step of the present invention can be suitable for the artificial flanging of wooden plywood's intermediate plate of all size size below seven layers to splicing method.

Claims

1. wooden plywood's intermediate plate to splicing method, comprise rotary-cut, have one's hair trimmed, smooth drying, to piece together, the hot press forming technology step, it is characterized in that opening after the smooth drying bank, gap, flanging to piecing together, press hot repressing moulding behind the batten, the processing step that carries out cutting edge then: