CN115519643B - A method for lengthening bamboo strips and a method and device for producing long bamboo boards - Google Patents

Abstract

The invention discloses a method for splicing bamboo strips and a method and device for producing long bamboo boards. The method for splicing bamboo strips includes: S01, raw bamboo processing: processing a number of raw bamboos into bamboo strips; S02, milling buckles : Mill the ends of the bamboo strips obtained in step S01 into buckles and corresponding buckle grooves respectively; S03, glue the bamboo strips: glue the buckles and buckle grooves obtained in step S02 respectively to obtain glued bamboo strips ; S04, longitudinal arrangement: arrange the multiple glued bamboo strips obtained in step S03 along the length direction of the bamboo strips, and arrange the buckles and buckle grooves oppositely; S05, extend the bamboo strips: arrange the buckles in step S04 Push the connection in the buckle groove along the length direction of the bamboo strip to obtain a longer bamboo strip. The present invention replaces ordinary finger joints with snap connections, takes advantage of the elastic plasticity and strong toughness of bamboo strips, increases the connection strength of the joints, makes the joints less likely to dislocate and detach, and eliminates the need for plastic films in the traditional finger joint process. The binding and fixing process reduces labor and improves continuity.

Description

A method for lengthening bamboo strips and a method and device for producing long bamboo boards

Technical field

The invention relates to the field of bamboo processing, and specifically relates to a method for lengthening bamboo strips and a production method and device for long bamboo boards.

Background technique

At present, the processing method of bamboo strips is generally to cut the original bamboo and then process it into equal sections. Due to the sharpness of the bamboo, the length of the bamboo strips is generally 1 to 2m, which results in a large amount of planing and a low yield rate. disadvantages. In order to improve the yield rate, the method of lengthening bamboo strips can be used. However, most of the current methods of splicing bamboo strips are finger joints. In the finger-jointed splicing method, since the connection strength between the finger-jointed strips is small and the adhesive is not cured, in order to prevent problems such as dislocation and detachment between the bamboo strips, plastics are needed. The film is bundled and fixed, and then hot-pressed to lengthen it. This has the disadvantages of numerous processes, poor surface quality after hot-pressing, and high production costs.

Bamboo boards must be assembled into long bamboo strips and hot-pressed to make bamboo boards for practical use. After hot-pressing long bamboo sticks, the boards are generally shorter and have a smaller range of applications, making them unable to meet more application scenarios.

Contents of the invention

The purpose of the present invention is to address the deficiencies in the prior art and provide a method for splicing bamboo strips with fewer steps and longer board lengths, and a production method and device for long bamboo boards, so as to improve the quality of long bamboo board processed products.

The invention provides a method for lengthening bamboo strips, and the technical solution adopted is:

S01, raw bamboo processing: process several raw bamboos into bamboo strips;

S02, milling buckles: mill the ends of the bamboo strips obtained in step S01 into buckles and buckle grooves corresponding to the buckles;

S03, glue the bamboo strips: glue the buckles and the buckle grooves obtained in step S02 respectively to obtain glued bamboo strips;

S04, longitudinal arrangement: Arrange the plurality of glued bamboo strips obtained in step S03 in sequence along the length direction of the bamboo strips, and arrange the buckles and the buckle grooves oppositely;

S05, extend the bamboo strips: push the buckles arranged in step S04 into the buckle grooves along the length direction of the bamboo strips and connect them to obtain lengthened bamboo strips.

In a preferred embodiment, in the step S01: several raw bamboos are processed into bamboo strips of uniform size by cutting, breaking, and planing.

In a preferred embodiment, in the step S03, the method of applying glue to the buckle and the buckle groove is spraying glue.

In a preferred embodiment, the method of pushing the buckle into the buckle groove along the length direction of the bamboo strip in step S05 includes:

Fix the glued bamboo strip located at the frontmost end of the length direction of the bamboo strip;

Push the buckle on at least one of the glued bamboo strips into the buckle groove of the glued bamboo strip at the front end, so that the buckle is locked in the buckle groove; or,

Push the buckle groove on at least one of the glued bamboo strips in the direction of the buckle of the first glued bamboo strip near the front end, so that the buckle is locked in the buckle groove;

Obtain extended bamboo strips.

In a preferred embodiment, the buckle on the glued bamboo strip has elastic plasticity. When the buckle is pushed into the buckle groove to its top, the deformed buckle has a restoring force to match the buckle. Buckle groove fastening connection.

In a preferred embodiment, the width of the buckle and the buckle groove from the edge of the bamboo strip is 1 to 3 mm.

In a preferred embodiment, the shape of the buckle and the corresponding buckle groove includes a flat head shape, a round shape, an arrow shape, a double arrow shape, a round head shape, and a gourd shape.

In a second aspect, the present invention also relates to a production method for applying the above-mentioned bamboo strip lengthening method to long bamboo boards. The production method of long bamboo boards includes:

Bamboo strip blank assembly: The extended bamboo strips processed according to the bamboo strip lengthening method are staggered and fed into strips, and the blanks are assembled to obtain forward plates or lateral plates;

Hot pressing of bamboo strips: The lateral slab obtained by the bamboo strip embryo assembly process is hot-pressed with the flat pressing and lengthening technology to obtain long bamboo layers, or the obtained forward slab is hot-pressed with the side pressing and lengthening technology. Obtain long bamboo laminated lumber.

In a preferred embodiment, the method of displacing the extended bamboo strips into strips and forming blanks to produce boards includes:

The extension bamboo strips of a certain length are sequentially staggered and arranged so that the extensions of the extension bamboo strips are staggered;

Assemble the extended bamboo strips in the forward direction to obtain a forward plate; or,

The extended bamboo strips are assembled in lateral directions to obtain lateral plates.

In a third aspect, the present invention also provides a production device for long bamboo boards, which includes the above-mentioned production method of long bamboo boards.

Compared with the existing method of splicing bamboo strips and utilizing the lengthened bamboo strips to produce boards, the beneficial effects of the present invention are as follows:

(1) The embodiment of the present invention uses special-shaped snap connections instead of ordinary finger joint extensions, and utilizes the elastic plasticity and toughness of bamboo strips to improve the connection strength of the joints;

(2) The embodiment of the present invention controls the width of the buckle and the buckle groove from the edge of the bamboo strip, so that the buckle entering the buckle groove will not cause damage to the bamboo strip, and can increase the connection strength of the connection so that the connection is not easily dislocated. , The detachment effect eliminates the plastic film bundling and fixing process in the traditional finger jointing process, reduces labor, improves continuity, and reduces processing costs;

(3) The embodiment of the present invention also produces infinite-length bamboo laminates and infinite-length bamboo laminated timber through flat-pressure and length-joining technology and side-pressure and length-joining technology respectively.

Description of the drawings

In order to understand the purpose, features and advantages of the present invention more clearly, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, in which:

Figure 1 is a schematic block diagram of a method for splicing bamboo strips and a method for producing long bamboo boards using the method according to an embodiment of the present invention;

Figure 2 is a schematic block diagram of the method of pushing the buckle into the buckle groove along the length direction of the bamboo strip in step S05 in Figure 1;

Figure 3 is a schematic diagram of the principle of buckle connection between the buckle and the buckle groove in Figure 1;

Figure 4 is a front view of a flat-head buckle and a flat-head buckle groove according to the first embodiment of the present invention;

Figure 5 is an enlarged schematic diagram of the flat-head buckle in Figure 3;

Figure 6 is a front view of a circular buckle and a circular buckle groove according to the second embodiment of the present invention;

Figure 7 is an enlarged schematic diagram of the circular buckle in Figure 5;

Figure 8 is a front view of an arrow-shaped buckle and an arrow-shaped buckle groove according to the third embodiment of the present invention;

Figure 9 is an enlarged schematic view of the arrow-shaped buckle in Figure 7;

Figure 10 is a front view of a double-arrow-shaped buckle and a double-arrow-shaped buckle groove according to the fourth embodiment of the present invention;

Figure 11 is an enlarged schematic diagram of the double arrow-shaped buckle in Figure 9;

Figure 12 is a front view of a round-headed buckle and a round-headed buckling groove according to the fifth embodiment of the present invention;

FIG13 is an enlarged schematic diagram of the round-head buckle in FIG11 ;

Figure 14 is a front view of a gourd-shaped buckle and a gourd-shaped buckle groove according to the sixth embodiment of the present invention;

Figure 15 is an enlarged schematic diagram of the gourd-shaped buckle in Figure 13;

Figure 16 is a schematic block diagram of the method for displacing the extended bamboo strips into strips and assembling blanks to generate boards in step S06 in Figure 1;

Figure 17 shows the flat pressing assembly method of bamboo boards;

Figure 18 shows the side pressing method of bamboo board assembly.

Reference numbers in the figure include: 100-bamboo strips, 200-clipping structure, 1-flat head buckle, 1a-rectangular base, 1b-convex body, 1c-arc semicircular bulge, 2-flat head buckle groove, 3- Round buckle, 4-round buckle groove, 5-arrow buckle, 6-arrow buckle groove, 7-double arrow buckle, 8-double arrow buckle groove, 9-round head shape Buckle, 10-round head-shaped buckle groove, 11-gourd-shaped buckle, 12-gourd-shaped buckle groove.

Detailed ways

In order to facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the accompanying drawings. However, the present invention can be implemented in different forms and is not limited to what is described in the text. Rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly used by one skilled in the art of the present invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments. For purposes of the invention, and not as a limitation of the invention, the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in Figure 1, the present invention provides a method for splicing bamboo strips, and the technical solution adopted is:

S01, raw bamboo processing: process several raw bamboos into bamboo strips;

S02, milling buckles: mill the ends of the bamboo strips obtained in step S01 into buckles and buckle grooves corresponding to the buckles;

S03, glue the bamboo strips: glue the buckles and buckle grooves obtained in step S02 respectively to obtain glued bamboo strips;

S04, longitudinal arrangement: arrange the multiple glued bamboo strips obtained in step S03 along the length direction of the bamboo strips, and arrange the buckles and buckle grooves oppositely;

S05, extend the bamboo strips: Push the buckles arranged in step S04 into the buckle grooves along the length direction of the bamboo strips and connect them to obtain the lengthened bamboo strips.

The method of lengthening bamboo strips provided by the embodiment of the present invention uses special-shaped buckle connections instead of ordinary finger joints; the elastic plasticity and strong toughness of bamboo strips are used to control the distance between the buckles and the buckle grooves from the edge of the bamboo strips. width, the buckle entering the buckle groove will not cause damage to the bamboo strips, and can increase the connection strength of the connection. Through the gluing process, the connection between the buckle and the buckle groove can not be easily dislocated and separated, eliminating the need for It eliminates the plastic film bundling and fixing process in the traditional finger-joining process, reduces labor, improves production continuity and bamboo finished product effects, and reduces processing costs.

In step S01: several raw bamboos are processed into bamboo strips of uniform size through cutting, breaking, and planing, and the moisture content of the obtained bamboo strips is about 10%, the bamboo age is 4 to 6 years, the length is 500 to 3000mm, and the width is It is 15~200mm and the thickness is 5~14mm.

In the embodiment of the present invention, in step S02, the bamboo strips are end-milled by a bamboo strip milling machine, and 10 to 20 bamboo strips can be milled at one time; in step S03, spray glue is used as the glue application method, but it is not limited to spray glue. Method: In step S04, the glued bamboo strips are longitudinally arranged with the buckle end and the buckle groove end opposite each other through a transmission device provided with a limited slot, so that the glued bamboo strips can be buckled to each other and lengthened.

Furthermore, in the embodiment of the present invention, the ends of the bamboo strips are milled into buckles and buckle grooves corresponding to the matching buckles. The shape of the buckle and the shape of the buckle groove correspond to each other, so that the buckle can be inserted into the card. In the buckle groove, multiple bamboo strips can be firmly locked and connected to achieve unlimited lengthening of the bamboo strips in the longitudinal direction (along the length of the bamboo strips). At the same time, the blanks are fed into the strips through misalignment and flattened separately. and side pressing to obtain bamboo laminated lumber and bamboo layer lumber. The traditional method of finger jointing can be replaced by snap connection to achieve multiple bamboo strips. This can eliminate the need for plastic film bundling and fixation in the traditional finger jointing process. process, reduce labor, improve continuity, and reduce processing costs.

As shown in Figure 2, in step S05, the method of pushing the buckle into the buckle groove along the length direction of the bamboo strip includes:

S051: Fix the glued bamboo strip located at the front end of the length direction of the bamboo strip;

S052: Push the buckle on at least one glued bamboo strip into the buckle groove of the frontmost glued bamboo strip so that the buckle snaps into the buckle groove; or,

Push the buckle groove on at least one glued bamboo strip in the direction of the buckle of the first glued bamboo strip near the front end, so that the buckle is engaged with the buckle groove;

S053: Obtain extended bamboo strips.

In the aforementioned embodiment, the push plate is used to push the bamboo strip at the rear so that the buckle snaps into the buckle groove, so that the buckle is buckled into the buckle groove. The shape of the buckle corresponds to the shape of the buckle groove, and the buckle can be inserted into the buckle. At least two bamboo strips are connected with a firm lock in the buckle groove, so that the length of the bamboo strips can be realized. In more detail, the present invention can determine the number of buckled bamboo strips according to actual requirements to achieve the purpose of extending the length of the bamboo strips, and the bamboo strips can be infinitely extended.

The buckles on the glued bamboo strips provided by the present invention have elastic plasticity. When the buckles are pushed into the buckle grooves to the top, the deformed buckles have restoring force to tightly connect with the buckle grooves. It can be understood that due to the bamboo The strips have the characteristics of elastic plasticity and strong toughness. The buckles on the glued bamboo strips use the toughness of the bamboo strips to push them into the buckle grooves through the push plate. When the buckles reach the top, the bamboo strips will quickly return to their original shape due to their elasticity. It can achieve the purpose of firmly connecting bamboo strips with buckles.

Since the width of the buckle and the buckle groove is too wide, the buckle will not fit in or the buckle is too tight, and the width is too small, the buckle will be too loose or broken. The width of the edge of the strip is preferably 1 to 3 mm. It is naturally understandable that the width of the buckle and the buckle groove can be set as needed, that is, the adjustment of the width is within the scope of protection of this case.

The shapes of buckles and corresponding buckle grooves provided by the present invention include flat head shape, round shape, arrow shape, double arrow shape, round head shape, and gourd shape. The embodiments of the aforementioned buckle and the corresponding buckle groove are detailed. The introduction is as follows:

Referring to Figures 3, 4 and 5, in the first embodiment provided by the present invention, when the buckle of the bamboo strip 100 is a flat-head buckle 1, the corresponding buckle groove is a flat-head buckle groove 2 , in this embodiment, the flat-head buckle 1 includes a rectangular base 1a extending along the length direction of the bamboo strip and a convex body 1b perpendicular to the rectangular base 11 and located at its end to form a "T" shape, the convex body 1b There are arc-shaped semicircular protrusions 1c on both sides to act as a buckle when fastening, and at the same time to prevent the buckle from causing damage to the bamboo strips when it enters the buckle groove. In this example, the radius of the arc-shaped semicircular protrusion 13 can be 4 to 10 mm; the length of the base body 11 is 10 to 60 mm, and the width is 5 to 30 mm.

Referring to Figures 6 and 7, in the second embodiment provided by the present invention, when the buckle is a semicircular circular buckle 3, the corresponding buckle groove is a circular buckle groove 4. In this example , the angle of the circular buckle 3 is 180 to 240°. If the distance between the circular buckle 3 and the circular buckle groove 4 is too small, the buckle will be too loose, and if the distance is too large, the buckle will easily crack. The vertical distance of the shaped buckle 3 along the length direction of the bamboo strip is preferably 1 to 3 mm.

Referring to Figures 8 and 9, in the third embodiment provided by the present invention, when the buckle is an arrow-shaped arrow-shaped buckle 5, the corresponding buckle groove is an arrow-shaped buckle groove 6. In this embodiment , the bottom corners on both sides of the arrow are arc-shaped to prevent damage to the bamboo strips when the buckle enters the buckle groove. In this example, the arrow vertex angle of the arrow-shaped buckle 5 is preferably 0 to 160°.

Referring to Figures 10 and 11, in the fourth embodiment provided by the present invention, when the buckle is a double-arrow-shaped buckle 7 with two parallel arrows, the corresponding buckle groove is a double-arrow-shaped buckle groove 8. In this example, the outer bottom angle of the double-arrow-shaped buckle 7 is arc-shaped to prevent the buckle from damaging the bamboo strip when entering the buckle groove. In this example, the arrow vertex angle of the double-arrow-shaped buckle 7 is preferably 0-80°.

Referring to Figures 12 and 13, in the fifth embodiment provided by the present invention, the buckle is a round-headed buckle 9 with an arrow headed by a semicircle (the diameter of the semicircle is 30-70mm), and the corresponding buckle groove is Round-headed buckle groove 10. In this example, the vertical distance of the round-headed buckle 9 along the length direction of the bamboo strip is preferably 1 to 3 mm.

Referring to Figures 14 and 15, in the sixth embodiment provided by the present invention, when the buckle is a gourd-shaped gourd-shaped buckle 11, the two sides of the gourd-shaped buckle 11 are arcs to prevent the bamboo strips from being damaged when the buckle enters the buckle groove, and in this example, the top of the buckle is a part of an ellipse (that is, a partial ellipse), and the corresponding buckle groove is a gourd-shaped buckle groove 12.

However, it can be understood that the shapes of the buckles and buckle grooves provided by the present invention are not limited to the six types shown above.

Referring to Figure 1 again, the present invention also includes applying the above-described method of lengthening bamboo strips to a production method of long bamboo boards. The production method of long bamboo boards includes:

S06: Bamboo strip blank assembly: The extended bamboo strips in step S05 are staggered and fed into strips, and the blank is assembled to obtain the forward plate or the lateral plate;

S07: Hot pressing of bamboo strips: The lateral slab obtained by the bamboo strip embryo assembly process is hot-pressed with the flat pressing and lengthening technology to obtain long bamboo layers, or the obtained forward slab is heat-pressed with the side pressing and lengthening technology. Press to obtain long bamboo laminated lumber.

As shown in Figures 16, 17 and 18, in this specific embodiment, in step S06, the method of displacing the extended bamboo strips and forming blanks to generate boards includes:

S061: The bamboo strips of a certain length are staggered and arranged in sequence so that the lengths of the bamboo strips are staggered;

S062: Assemble the extended bamboo strips in the forward direction to obtain the forward plate; or,

Assemble the extended bamboo strips in the lateral direction to obtain lateral plates.

In the aforementioned embodiments, blank assembly is a process in which glued long bamboo strips are combined forward or sideways according to the structural requirements of the bamboo plywood slab to obtain a forward plate or a lateral plate. The combination methods include cross-bandedplies, starformation, parallel grainplies, etc. The cross-bandedplies are the combination methods in which the fiber direction angle between the plates is set to 90 degrees. Star-shaped combination is a combination method that sets the fiber direction angle between the plates to 0 to 90 degrees, and parallel combination is a combination method that sets the fiber direction angle between the plates to 0 degrees. , In the embodiment of the present invention, the embryo assembly mainly adopts orthogonal combination and parallel combination to finally obtain the forward plate or the lateral plate.

Compared with the existing bamboo strip extension and board production methods, the beneficial effects of the present invention are as follows:

(4) The embodiment of the present invention uses special-shaped snap connections instead of ordinary finger-jointed extensions, and utilizes the elastic plasticity and toughness of bamboo strips to improve the connection strength of the joints;

(5) The embodiment of the present invention controls the width of the buckle and the buckle groove from the edge of the bamboo strip, so that the buckle entering the buckle groove will not cause damage to the bamboo strip, and can increase the connection strength of the connection so that the connection is not easily dislocated. , The detachment effect eliminates the plastic film bundling and fixing process in the traditional finger jointing process, reduces labor, improves continuity, and reduces processing costs;

(6) The embodiment of the present invention also produces infinite-length bamboo laminates and infinite-length bamboo laminated timber through flat-pressure and length-joining technology and side-pressure and length-joining technology respectively.

The present invention also provides a production device for long bamboo boards, which includes the above-mentioned production method of long bamboo boards.

In order to facilitate a further understanding of the technical principles of the bamboo strip extension provided by the present invention and the production method of applying it to boards, the technical solution of this case will be further described below with reference to specific examples:

Example 1

This embodiment provides a method for lengthening bamboo strips, including the following steps:

S01: Take some bamboo and process it into regular bamboo strips. The moisture content of the bamboo strips is 10%. They are 5 years old, 500mm long, 80mm wide and 5mm thick.

S02: Mill the two ends of the bamboo strip obtained in step S01 into flat-head buckles and corresponding flat-head buckle groove shapes. The flat-head protrusion semicircle radius is 5mm, and the flat-head buckle trunk is 40mm long and 20mm wide.

S03 (Bamboo strip gluing): Apply glue to the buckles and buckle grooves at both ends of the bamboo strip obtained in step S02. The preferred gluing method is spray glue.

S04: Arrange the glued bamboo strips obtained in step S03 longitudinally so that the buckle end and the buckle groove end are opposite to each other.

S05: Fix the frontmost bamboo strip among the bamboo strips arranged in step S04, and push the latter bamboo strip so that the flat-head buckles 1 of the two bamboo strips are pushed into the flat-head buckle grooves 2, so as to achieve the purpose of lengthening. Finally, an extended bamboo strip with a length of 1000mm, a width of 80mm, and a thickness of 5mm was obtained.

Example 2

This embodiment provides a method for lengthening bamboo strips, including the following steps:

S01: Take some bamboo materials and process them into regular bamboo strips. The moisture content of the bamboo strips is preferably 15%, the bamboo age is preferably 5 years old, the length is preferably 600mm, the width is preferably 90mm, and the thickness is preferably 8mm.

S02: Mill the two ends of the bamboo strip obtained in step S01 into flat-head buckles and corresponding flat-head buckle groove shapes. The radius of the flat-head protrusion semicircle is preferably 6 mm. The length of the flat-head buckle trunk is preferably 50 mm and the width is preferably 25 mm. .

S03: Glue the bamboo strips: Apply glue to the buckles and buckle grooves at both ends of the bamboo strips obtained in step S02, and the glue application method is preferably glue spraying.

S04: Arrange the glued bamboo strips obtained in step S03 longitudinally so that the flat buckle ends and the flat buckle groove ends are opposite to each other.

S05: Fix the bamboo strips arranged in step S04 to the frontmost bamboo strip, and push the last bamboo strip so that the flat-head buckles 1 of the two bamboo strips are pushed into the flat-head buckle grooves 2 to achieve the purpose of lengthening, and finally obtain a long length. 1200mm, 90mm wide, 8mm thick extended bamboo strips.

Example 3

This embodiment provides a method for lengthening bamboo strips, including the following steps:

S01: Take a number of bamboo strips and process them into regular bamboo slices. The moisture content of the bamboo slices is preferably 15%, the bamboo age is preferably 5 years old, the length is preferably 600mm, the width is preferably 90mm, and the thickness is preferably 10mm.

S02: Mill the two ends of the bamboo strip obtained in step S01 into circular buckles and corresponding circular buckle groove shapes. The large semicircle angle is preferably 220°, and the longitudinal convex edge of the circular buckle is in line with the shape of the circular buckle. The vertical distance between the buckle roots should preferably be 2mm.

S03 (Bamboo strip gluing): Apply glue to the buckles and buckle grooves at both ends of the bamboo strip obtained in step S02. The gluing method is spray glue.

S04: Arrange the glued bamboo strips obtained in step S03 longitudinally so that the circular buckle ends and the circular buckle groove ends are opposite to each other.

S05: Fix the bamboo strips arranged in step S04 to the frontmost bamboo strip, and push the latter bamboo strip so that the circular buckles of the two bamboo strips are pushed into the circular buckle groove 4 to achieve the purpose of lengthening, and finally obtain Extended bamboo strips with a length of 1200mm, a width of 90mm and a thickness of 10mm.

To sum up, the present invention replaces ordinary finger joint extensions by using special-shaped buckle connections, and utilizes the elastic plasticity and strong toughness of bamboo strips to control the width of the buckle and the buckle groove from the edge of the bamboo strip. Entering the buckle groove will not cause damage to the bamboo strips, and can increase the connection strength of the connection, making the connection less likely to dislocate and detach, eliminating the plastic film bundling and fixing process in the traditional finger-joining process, reducing labor and improving continuity. , reducing processing costs; the invention also produces infinitely long bamboo laminates and infinitely long bamboo laminated timber through flat pressing and lengthening technology and side pressing and lengthening technology respectively.

The above are only the preferred embodiments of the present invention. It should be pointed out that those of ordinary skill in the art can also make several improvements and supplements without departing from the method of the present invention. These improvements and supplements should also be regarded as It is the protection scope of the present invention.

Claims (7)

1. A method for lengthening bamboo strips, which is characterized by including: S01, raw bamboo processing: process a number of raw bamboos into bamboo strips; process a number of raw bamboos into bamboo strips of uniform size through cutting, breaking, and planing; S02, milling buckles: mill the ends of the bamboo strips obtained in step S01 into buckles and buckle grooves corresponding to the buckles; S03, glue the bamboo strips: glue the buckles and the buckle grooves obtained in step S02 respectively to obtain glued bamboo strips; S04, longitudinal arrangement: Arrange the plurality of glued bamboo strips obtained in step S03 in sequence along the length direction of the bamboo strips, and arrange the buckles and the buckle grooves oppositely; the glued bamboo strips are provided with limited grooves The transmission device arranges the buckle end and the buckle groove end oppositely longitudinally; S05, extend the bamboo strips: push the buckles arranged in step S04 into the buckle grooves along the length direction of the bamboo strips and connect them to obtain lengthened bamboo strips; The method of pushing the buckle into the buckle groove along the length direction of the bamboo strip in step S05 includes: Fix the glued bamboo strip located at the frontmost end of the length direction of the bamboo strip; Push the buckle on at least one of the glued bamboo strips into the buckle groove of the glued bamboo strip at the front end, so that the buckle is locked in the buckle groove; or, Push the buckle groove on at least one of the glued bamboo strips in the direction of the buckle of the first glued bamboo strip near the frontmost end, so that the buckle is locked in the buckle groove; Get extended bamboo strips; The buckle on the glued bamboo strip has elastic plasticity. When the buckle is pushed into the buckle groove to its top, the deformed buckle has a restoring force to be firmly connected to the buckle groove. . 2. The method of extending bamboo strips according to claim 1, characterized in that in step S03: the method of gluing the buckle and the buckle groove is spraying glue. 3. The method for lengthening bamboo strips according to claim 1, characterized in that the width of the buckle and the buckle groove from the edge of the bamboo strip is 1 to 3 mm. 4. The method for lengthening bamboo strips according to claim 1, characterized in that the shape of the buckle and the corresponding buckle groove includes a flat head shape, a round shape, an arrow shape, a double arrow shape, and a round head shape. , gourd-shaped. 5. Apply the bamboo strip extension method according to any one of claims 1 to 4 to a production method of long bamboo boards, and the production method of long bamboo boards includes: Bamboo strip blank assembly: The extended bamboo strips processed according to the bamboo strip lengthening method are staggered and fed into strips, and the blanks are assembled to obtain forward plates or lateral plates; Hot pressing of bamboo strips: The lateral slab obtained by the bamboo strip embryo assembly process is hot-pressed with the flat pressing and lengthening technology to obtain long bamboo layers, or the obtained forward slab is hot-pressed with the side pressing and lengthening technology. Obtain long bamboo laminated lumber. 6. The production method of a long bamboo board according to claim 5, characterized in that: the method of displacing the long bamboo strips and forming embryos to produce the board includes: The extension bamboo strips of a certain length are sequentially staggered and arranged so that the extensions of the extension bamboo strips are staggered; Assemble the extended bamboo strips in the forward direction to obtain a forward plate; or, The extended bamboo strips are assembled in lateral directions to obtain lateral plates. 7. A device for producing long bamboo boards, characterized in that it includes the production method of long bamboo boards according to any one of claims 5-6.