阅读说明：本技术 一种原生态竹方的加工方法及其设备 (Method and equipment for processing original ecological bamboo cubes ) 是由 黎志生 于 2021-09-08 设计创作，主要内容包括：本发明公开一种原生态竹方的加工方法及其设备,所述方法包括竹、上胶、烘干、热压机模内层叠排板和热压成形。所述设备包括动模、模座和机架,动模处于模座的正上方,模座安装在机架上,动模以能向模座移动地安装在机架上,还包括处于模座左侧的左定位块和处于模座右侧的右定位块,左定位块与右定位块以能相向移动地安装在机架上。与现有技术相比,本发明的原生态竹方的加工设备,其通过在机架上设置模座左侧的左定位块和处于模座右侧的右定位块,在多片竹板挤压过程中对产生的夹紧力。在左定位块和右定位块的辅助夹紧作用下,极大降低了竹片纤维破坏,提高竹方韧性与抗力能力；压制成型的竹方外表美观,减少胶水用量,极大降低成本。(The invention discloses a processing method and equipment of original ecological bamboo cubes. The equipment comprises a movable die, a die holder and a rack, wherein the movable die is positioned right above the die holder, the die holder is arranged on the rack, the movable die is arranged on the rack in a manner of moving towards the die holder, the equipment also comprises a left positioning block positioned on the left side of the die holder and a right positioning block positioned on the right side of the die holder, and the left positioning block and the right positioning block are arranged on the rack in a manner of moving towards each other. Compared with the prior art, the processing equipment for the original ecological bamboo square has the advantages that the left positioning block on the left side of the die holder and the right positioning block on the right side of the die holder are arranged on the rack, and clamping force is generated in the process of extruding a plurality of bamboo boards. Under the auxiliary clamping action of the left positioning block and the right positioning block, the damage of bamboo chip fibers is greatly reduced, and the toughness and resistance capability of bamboo squares are improved; the pressed bamboo has beautiful appearance, reduces the glue consumption and greatly reduces the cost.)

1. A processing method of original ecological bamboo cubes comprises the steps of bamboo breaking, gluing, drying, laminating row boards in a hot press mold and hot press forming, and is characterized by comprising the following steps:

(1) cutting the moso bamboo according to the required specification to obtain bamboo sections, and cutting off bamboo joints protruding on the outer surfaces of the bamboo sections; splitting the bamboo sections into arc bamboo chip blanks;

(2) making the outer circumference of the arc bamboo sheet blank have a diameter of 0.5-1.2 mm; removing interlayer bamboo joints in the inner circle of the arc-shaped bamboo chip blank; the processing into radian is to process into smooth-surfaced light blank with the inner arc radius equal to the outer arc radius;

(3) milling one end or two ends of the light blank into finger-shaped tenons, and performing finger joint assembly;

(4) gluing the green bamboo surface, the yellow bamboo surface and the finger tenon joint surface of the smooth blank, and then sequentially superposing and assembling the smooth blank in the same arc-shaped direction;

(5) pressing and fixing the glued arc-shaped bamboo chip assembly in the vertical and lateral directions simultaneously for natural solidification, or sending the assembly into a hot press for pressing and solidifying in the vertical and lateral directions simultaneously to form a recombined bamboo material;

(6) the surfaces of a plurality of layers of bamboo materials are processed and leveled and then stacked in the same direction, and the bamboo materials are pressed and bonded to form bamboo squares or square timber with different thicknesses.

2. The method of manufacturing the arc-shaped bamboo original state restructuring material according to claim 1, wherein: in the step (1), the moso bamboo is sawn into bamboo sections with the length of 200-3000mm, and the bamboo sections are split into arc-shaped bamboo sheet blanks with the width of 10-120 mm; in the step (2), the tabasheer surface of the arc-shaped bamboo chip blank is milled to be 0.5-2mm, the arc is machined into a smooth blank with a smooth surface and the radius of an inner arc is equal to that of an outer arc, and the range of a fan-shaped included angle corresponding to the inner arc and the outer arc is 30-120 degrees; in the step (3), one side edge of each smooth blank is subjected to stretch cutting along the circumferential direction of the bamboo fiber by using a cutting knife, and a convex strip matched with the circular longitudinal strip seam on the adjacent smooth blank is ground on one side of each smooth blank, which is deviated from the circular longitudinal strip seam; in the step (4), arc-shaped bamboo chips are carbonized at high temperature, and are put into a drying and sterilizing carbon dryer, the heating temperature of the drying and sterilizing carbon dryer is 120-200 ℃, the heating time is 2.5-5 hours, the arc-shaped bamboo chips are carbonized, and the carbonization degree is 2% -35%; hot pressing and re-flattening the carbonized arc bamboo sheet group, and then gluing; the adhesive used for gluing in the step (4) and the step (5) is UF, PF, MDI or other adhesives commonly used in the field.

3. The utility model provides a processing equipment of original ecology bamboo side, includes electrical bar, movable mould, die holder and frame to and be used for driving the first pneumatic cylinder of movable mould to the die holder motion, the movable mould is in directly over the die holder, the die holder is installed in the frame, the movable mould is installed in the frame with can moving to the die holder, first pneumatic cylinder fixed mounting in the frame, first pneumatic cylinder has the work end, movable mould fixed connection be in the work of first pneumatic cylinder is served, its characterized in that: still including being in the left locating piece of die holder and being in the right locating piece on die holder right side, a left side locating piece with right locating piece is installed in the frame with can moving in opposite directions, install first rubber pad on the locating piece of a left side, first rubber pad is in a left side locating piece with on the relative side of right locating piece, install the second rubber pad on the locating piece of the right side, be provided with in the frame the fourth drive arrangement of die holder below, fourth drive arrangement is in the below of die holder, fourth drive arrangement has and is used for the drive the power take off of the vertical removal of die holder, the die holder with fourth drive arrangement has power take off end fixed connection.

4. The processing equipment of original ecological bamboo cubes of claim 3, wherein: the die holder is arranged above the die holder, the power output end of the first driving device faces the die holder, the movable die is fixedly connected with the power output end of the first driving device, and the first driving device can drive the movable die to be vertically movably mounted on the machine frame; the second driving device is positioned on the left side of the die holder, the power output end of the second driving device faces the right positioning block, the second driving device is fixedly installed on the rack, and the second driving device drives the left positioning block to transversely move on the rack; the third driving device is positioned on the right side of the die holder, the power output end of the third driving device faces the left positioning block, the third driving device is fixedly installed on the rack, and the second driving device drives the right positioning block to transversely move on the rack.

5. The processing equipment of original ecological bamboo cubes of claim 3, wherein: the rack is provided with a first sliding mechanism for moving the left positioning block to play a guiding role, the first sliding mechanism is positioned below the left positioning block, the rack is provided with a second sliding mechanism for moving the right positioning block to play a guiding role, and the first sliding mechanism is positioned below the right positioning block.

6. The processing equipment of original ecological bamboo cubes of claim 5, wherein: the first sliding mechanism is a first sliding rail and a first sliding block, the first sliding rail is horizontally arranged on the rack, the first sliding rail is fixed with the rack, the right end part of the first sliding rail is positioned outside the area above the die holder, and the first sliding block is fixedly arranged on the left positioning block and is in sliding fit with the first sliding rail; the second sliding mechanism is composed of a second sliding rail and a second sliding block, the second sliding rail is horizontally arranged on the rack, the second sliding rail is fixed with the rack, the left end of the second sliding rail is located outside the area above the die holder, and the second sliding block is fixedly installed on the right positioning block and is in sliding fit with the second sliding rail.

7. The processing equipment of original ecological bamboo cubes of claim 6, wherein: the rack is provided with a first graduated scale for measuring the edge position of the left side of the left positioning block, the first graduated scale and the first slide rail are arranged in parallel, the rack is provided with a second graduated scale for measuring the edge position of the right side of the right positioning block, and the second graduated scale and the second slide rail are arranged in parallel; the first graduated scale and the second graduated scale are positioned on the same straight line.

8. The processing equipment of original ecological bamboo cubes of claim 3, wherein: the movable die, the die holder, the left positioning block and the right positioning block are internally provided with backflow channels for storing heat conduction oil, a plurality of mounting holes communicated with the corresponding backflow channels are formed in the movable die, the die holder, the left positioning block and the right positioning block, the mounting holes are respectively formed in the front/rear side walls of the movable die, the die holder, the left positioning block and the right positioning block, and the electric heating rods for heating the heat conduction oil are assembled in the mounting holes.

9. The apparatus for processing raw bamboo cubes of claim 3 or 8, wherein: the second rubber pad is arranged on the side face, opposite to the left positioning block, of the right positioning block, and anti-skidding structures are arranged on the first rubber pad and the second rubber pad.

Technical Field

The invention relates to the field of artificial boards and interior decoration materials, in particular to a method and equipment for processing original ecological bamboo cubes.

Background

In the traditional bamboo chip processing technology, a plurality of formed straight bamboo chips are obtained through pressing by pressing equipment, the obtained straight bamboo chips are recombined bamboo (namely, a single bamboo board) through a tenon joint surface, then the edges and the surfaces of the recombined bamboo are treated (namely, the edges of the single bamboo board are trimmed, and the surfaces of the single bamboo board are planed or sanded), and the recombined bamboo is sawed into a manufactured bamboo square or bamboo with a certain specification. However, the above process can be known that a plurality of straight bamboo chips are obtained to form the recombined bamboo material, and effective control cannot be performed, so that the edges and the surfaces of the recombined bamboo material need to be treated, the bamboo material is greatly wasted, noise and bamboo powder pollution are caused in the treatment process, labor cost is consumed, the cost investment of an enterprise is increased, and the development of the enterprise is restricted.

In addition, a conventional pressing apparatus for manufacturing bamboo cubes generally includes a frame, a movable mold movably mounted on the frame, and a mold base fixedly mounted on the frame. When the pressing equipment works, a plurality of pieces of recombined bamboo wood are sequentially fed into the existing pressing equipment in the length direction and are overlapped up and down. The moving die moves towards the die holder to convey the working procedure to the die holder, and the plurality of recombined bamboo wood pieces are subjected to cold extrusion and gluing, and are subjected to heat preservation and shaping to achieve the aim of recombining the bamboo wood, so that the required bamboo square is obtained. However, in the process of extruding the multiple pieces of recombined bamboo wood, the existing pressing equipment does not have the function of pre-clamping or clamping the two sides of the feeding direction of the multiple pieces of recombined bamboo wood at the same time, so that the multiple pieces of recombined bamboo wood are often overlapped and dislocated from top to bottom, the material arrangement is inconvenient, the multiple pieces of recombined bamboo wood are inconsistent in horizontal extension and contraction, the edges and the surfaces of the bamboo squares need to be treated after the bamboo squares are shaped (namely, the edges of the redundant bamboo pieces need to be cut off for trimming), bamboo piece waste is caused, and the cost is increased. The qualified rate of the bamboo is low, and the production requirements of enterprises cannot be met.

In view of this, the inventor of the present invention has made an improvement to the conventional bamboo chip processing technology and the existing pressing equipment.

Disclosure of Invention

The invention aims to provide a processing method and equipment of original ecological bamboo cubes.

In order to achieve the purpose, the invention adopts the following technical scheme:

a processing method of original ecological bamboo cubes comprises the steps of bamboo breaking, gluing, drying, laminating row boards in a hot press mold and hot press forming, and specifically comprises the following steps:

(1) cutting the moso bamboo according to the required specification to obtain bamboo sections, and cutting off bamboo joints protruding on the outer surfaces of the bamboo sections; splitting the bamboo sections into arc bamboo chip blanks;

(2) making the outer circumference of the arc bamboo sheet blank have a diameter of 0.5-1.2 mm; removing interlayer bamboo joints in the inner circle of the arc-shaped bamboo chip blank; the processing into radian is to process into smooth-surfaced light blank with the inner arc radius equal to the outer arc radius;

(3) milling one end or two ends of the light blank into finger-shaped tenons, and performing finger joint assembly;

(4) gluing the green bamboo surface, the yellow bamboo surface and the finger tenon joint surface of the smooth blank, and then sequentially superposing and assembling the smooth blank in the same arc-shaped direction;

(5) pressing and fixing the glued arc-shaped bamboo chip assembly in the vertical and lateral directions simultaneously for natural solidification, or sending the assembly into a hot press for pressing and solidifying in the vertical and lateral directions simultaneously to form a recombined bamboo material;

(6) the surfaces of a plurality of layers of bamboo materials are processed and leveled and then stacked in the same direction, and the bamboo materials are pressed and bonded to form bamboo squares or square timber with different thicknesses.

Wherein, in the step (1), the moso bamboo is sawn into bamboo sections with the length of 200-3000mm, and the bamboo sections are split into arc-shaped bamboo sheet blanks with the width of 10-120 mm; in the step (2), the tabasheer surface of the arc-shaped bamboo chip blank is milled to be 0.5-2mm, the arc is machined into a smooth blank with a smooth surface and the radius of an inner arc is equal to that of an outer arc, and the range of a fan-shaped included angle corresponding to the inner arc and the outer arc is 30-120 degrees; in the step (3), one side edge of each smooth blank is subjected to stretch cutting along the circumferential direction of the bamboo fiber by using a cutting knife, and a convex strip matched with the circular longitudinal strip seam on the adjacent smooth blank is ground on one side of each smooth blank, which is deviated from the circular longitudinal strip seam; in the step (4), arc-shaped bamboo chips are carbonized at high temperature, and are put into a drying and sterilizing carbon dryer, the heating temperature of the drying and sterilizing carbon dryer is 120-200 ℃, the heating time is 2.5-5 hours, the arc-shaped bamboo chips are carbonized, and the carbonization degree is 2% -35%; hot pressing and re-flattening the carbonized arc bamboo sheet group, and then gluing; the adhesive used for gluing in the step (4) and the step (5) is UF, PF, MDI or other adhesives commonly used in the field.

Above-mentioned former ecological bamboo side's processing equipment that processing method used includes electrical bar, movable mould, die holder and frame to and be used for driving the first pneumatic cylinder of movable mould to the die holder motion, the movable mould is in directly over the die holder, the die holder is installed in the frame, the movable mould is in order to install in the frame with removing to the die holder, first pneumatic cylinder fixed mounting in the frame, first pneumatic cylinder has the work end, movable mould fixed connection is in on the work end of first pneumatic cylinder, its characterized in that: still including being in the left locating piece of die holder and being in the right locating piece on die holder right side, a left side locating piece with right locating piece is installed in the frame with can moving in opposite directions, install first rubber pad on the locating piece of a left side, first rubber pad is in a left side locating piece with on the relative side of right locating piece, install the second rubber pad on the locating piece of the right side, be provided with in the frame the fourth drive arrangement of die holder below, fourth drive arrangement is in the below of die holder, fourth drive arrangement has and is used for the drive the power take off of the vertical removal of die holder, the die holder with fourth drive arrangement has power take off end fixed connection.

The die holder is arranged above the die holder, the power output end of the first driving device faces the die holder, the movable die is fixedly connected with the power output end of the first driving device, and the first driving device can drive the movable die to be vertically movably mounted on the machine frame; the second driving device is positioned on the left side of the die holder, the power output end of the second driving device faces the right positioning block, the second driving device is fixedly installed on the rack, and the second driving device drives the left positioning block to transversely move on the rack; the third driving device is positioned on the right side of the die holder, the power output end of the third driving device faces the left positioning block, the third driving device is fixedly installed on the rack, and the second driving device drives the right positioning block to transversely move on the rack.

The rack is provided with a first sliding mechanism for moving the left positioning block to play a guiding role, the first sliding mechanism is positioned below the left positioning block, the rack is provided with a second sliding mechanism for moving the right positioning block to play a guiding role, and the first sliding mechanism is positioned below the right positioning block.

The first sliding mechanism is a first sliding rail and a first sliding block, the first sliding rail is horizontally arranged on the rack, the first sliding rail is fixed with the rack, the right end part of the first sliding rail is positioned outside the area above the die holder, and the first sliding block is fixedly arranged on the left positioning block and is in sliding fit with the first sliding rail; the second sliding mechanism is composed of a second sliding rail and a second sliding block, the second sliding rail is horizontally arranged on the rack, the second sliding rail is fixed with the rack, the left end of the second sliding rail is located outside the area above the die holder, and the second sliding block is fixedly installed on the right positioning block and is in sliding fit with the second sliding rail.

The rack is provided with a first graduated scale for measuring the edge position of the left side of the left positioning block, the first graduated scale and the first slide rail are arranged in parallel, the rack is provided with a second graduated scale for measuring the edge position of the right side of the right positioning block, and the second graduated scale and the second slide rail are arranged in parallel; the first graduated scale and the second graduated scale are positioned on the same straight line.

The movable die, the die holder, the left positioning block and the right positioning block are internally provided with backflow channels for storing heat conduction oil, a plurality of mounting holes communicated with the corresponding backflow channels are formed in the movable die, the die holder, the left positioning block and the right positioning block, the mounting holes are respectively formed in the front/rear side walls of the movable die, the die holder, the left positioning block and the right positioning block, and the electric heating rods for heating the heat conduction oil are assembled in the mounting holes.

The second rubber pad is arranged on the side face, opposite to the left positioning block, of the right positioning block, and anti-skidding structures are arranged on the first rubber pad and the second rubber pad.

The invention has the beneficial effects that:

according to the processing method of the original ecological bamboo square, the straight bamboo slices can be obtained and effectively controlled to be the recombined bamboo materials in the processing process (namely the control of the thickness of the green bamboo layer, the control of the length of the bamboo green layer, the control of the temperature, the control of the heating time and the like), the edges and the surfaces of the recombined bamboo materials are not required to be treated, the waste of the obtained straight bamboo slices and the recombined bamboo materials is saved, the use amount of the straight bamboo slices and the recombined bamboo materials is reduced, and the cost is further reduced. In the process of processing the obtained straight bamboo chips into the recombined bamboo wood, the noise and the pollution of the bamboo powder are reduced, and the working environment is improved. Personnel are not needed to participate in the process, the labor cost is reduced, the cost investment of enterprises is reduced, the development of the enterprises is promoted, and the income is increased.

The invention relates to a processing device of original ecological bamboo squares, which is mainly characterized in that a left positioning block on the left side of a die holder and a right positioning block on the right side of the die holder are arranged on a rack, and the left positioning block and the right positioning block can move in opposite directions, so that clamping and jacking in a feeding direction (the fiber direction in each bamboo plate is consistent with the feeding direction) can be provided for each bamboo plate (namely recombined bamboo) for manufacturing the bamboo squares, and clamping force can be generated on each bamboo plate. Under the auxiliary action of clamping, the extension of the bamboo boards to the length direction in the process of pressing the bamboo boards into the bamboo squares is effectively controlled, and the pressed bamboo squares meet the required requirements. In addition, under the clamping auxiliary effect of the opposite movement of the left positioning block and the right positioning block, the damage of bamboo chip fibers is greatly reduced, the crack amount of the bamboo boards is reduced, the pressed expansion amount of the bamboo boards is reduced, the bamboo boards are tightly laminated up and down, the bamboo square is more compact, and the toughness and the resistance capability of the bamboo square are improved. The pressed bamboo is beautiful in appearance, the glue consumption is reduced, and the cost is greatly reduced. In addition, the material is also managed, the cutting amount of the post-processed bamboo square is reduced (namely, the trimming amount of the edges of the two sides in the width direction of the obtained recombined bamboo wood and the bamboo square is reduced, the bamboo material waste is reduced), the cost is reduced, and the economic benefit is improved.

Drawings

For ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.

FIG. 1 is a process flow chart of the processing method of the original ecological bamboo cube of the invention.

Fig. 2 is a schematic structural view of the processing equipment of the original ecological bamboo square of the invention.

In the figure:

a moving mold-1; a die holder-2; a frame-3; a left positioning block-4; a right positioning block-5; a first rubber pad-6; a second rubber pad-7; bamboo square-8.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.

As shown in fig. 1, the processing method of the original ecological bamboo cubes of the invention comprises the steps of breaking bamboo, gluing, drying, laminating plate arrays in a hot press mold and hot press forming, and specifically comprises the following steps:

(1) cutting the moso bamboo according to the required specification to obtain bamboo sections, and cutting off bamboo joints protruding on the outer surfaces of the bamboo sections; splitting the bamboo sections into arc bamboo chip blanks; specifically, the method comprises the following steps: in the step (1), the moso bamboo is sawn into bamboo sections with the lengths of 200mm, 250mm, 300mm, 450mm, 1000mm, 2000mm or 3000mm, and the bamboo sections are split into arc-shaped bamboo sheet blanks with the widths of 10mm, 20mm, 50mm, 60mm, 70mm, 80mm, 100mm or 120 mm.

(2) The outer circumference of the arc bamboo sheet blank is cut off with a bamboo green thin layer of 0.5-1.2mm, so as to reduce the surface hardness and reduce cracking during stretching and unfolding. Removing interlayer bamboo joints in the inner circle of the arc-shaped bamboo chip blank (namely removing inner bamboo joints and outer bamboo joints); the radian of the processed light blank is that the light blank with smooth surface and the inner arc radius equal to the outer arc radius is processed. According to the difference of the chest diameter of the bamboo, splitting the bamboo into arc bamboo blanks with certain specifications, removing inner and outer bamboo joints through milling, and processing into standard arc bamboo sheet blanks with consistent specifications and smooth surfaces, wherein the thicknesses of the standard arc bamboo sheet blanks are as follows: the bamboo has natural wall thickness. Specifically, the method comprises the following steps: the outer arc radius R1 of arc bamboo chip blank is greater than inner arc radius R2 under the natural state, through milling process, process inner arc radius R1 into R interior, process outer arc radius into R outer, make new inner arc radius equal with outer arc radius, namely R interior become R outer, cut the section position, form the light blank of standard arc. In the step (2), the tabasheer surface of the arc-shaped bamboo chip blank is milled to be 0.5mm, 1mm, 1.5mm or 2mm, the arc is processed into a smooth blank with a smooth surface and the radius of the inner arc is equal to that of the outer arc, and the range of the included angle of the sectors corresponding to the inner arc and the outer arc is 30-120 degrees.

(3) And milling one end or two ends of the light blank into finger-shaped tenons, and performing finger joint assembly. Specifically, the method comprises the following steps: in the step (3), one side edge of each smooth blank is subjected to drawing cutting along the circumferential direction of the bamboo fiber by using a cutting knife, and a convex strip matched with the circular longitudinal strip seam on the adjacent smooth blank is ground on one side of each smooth blank, which is deviated from the circular longitudinal strip seam. The cutting knife is arranged on a conical iron bar, a plurality of cutting knives are arranged, when the bamboo tube is fed into the conical iron bar, the surface of the tabasheer is cut into tabasheer meat by about 1-2 mm from the surface of the tabasheer under the cutting of the plurality of cutting knives, and the purpose is to destroy the hardness of the tabasheer surface, so that the circular bamboo tube does not crack seriously due to the hardness of the tabasheer when being stretched and unfolded.

(4) Gluing the green bamboo surface, the yellow bamboo surface and the finger tenon joint surface of the smooth blank, and then sequentially superposing and assembling the smooth blank in the same arc-shaped direction; specifically, the method comprises the following steps: in the step (4), the arc-shaped bamboo chips are carbonized at high temperature, and the round bamboo tube is carbonized at high temperature to soften the bamboo tube and prevent worm damage; the high-temperature carbonization treatment is to put the moso bamboo tube into a high-temperature sterilization pot for high-temperature treatment, so that the moso bamboo tube is softened, and is easy to flatten and convenient to process. Putting the arc bamboo chips into a drying and sterilizing carbon dryer, heating the drying and sterilizing carbon dryer at 120 ℃, 150 ℃, 180 ℃ or 200 ℃ for 2.5-5 hours, and carbonizing the arc bamboo chips to 2%, 10%, 20%, 25% or 35%; hot pressing and re-flattening the carbonized arc bamboo sheet group, and gluing (i.e. coating adhesive) in a conventional manner.

(5) The glued arc-shaped bamboo chip assembly is pressed and fixed vertically and laterally through pressing equipment for natural solidification, or is sent into a hot press for vertical and lateral simultaneous pressing and solidification to form a recombined bamboo material; and (5) carrying out hot pressing and heavy pressing by adopting pressing equipment to shape the stretched moso bamboo into a blank bamboo board.

(6) And (4) processing and flattening the surfaces of a plurality of layers of bamboo materials, stacking the bamboo materials in the same direction, pressurizing by adopting the same pressing equipment in the step (5), and bonding the bamboo materials after gluing to form bamboo squares 8 or square materials with different thicknesses. Specifically, the processed bamboo boards need to be glued by more than two layers, and can be longitudinally glued by the bamboo boards, and can also be longitudinally and transversely glued or longitudinally and transversely glued. The glued bamboo board is glued by the inner layer, the processed bamboo square 8 or the square material has no glue on the surface, and the bamboo chopping board is suitable for furniture manufacture, building decoration, various artworks and the like, in particular to a bamboo chopping board, is beautiful and elegant, is environment-friendly and sanitary, and is durable.

In the steps (3) to (5), the adhesive used for gluing is UF, PF, MDI or other adhesives commonly used in the field. Gluing the green bamboo surface, the tabasheer surface and the finger tenon joint surface of the smooth blank with the finger tenon, and then sequentially superposing and assembling the blank. The seams of different finger-joint light blanks can be arranged in a staggered way when assembling; thermosetting resins such as phenolic resin, melamine resin and urea resin or other adhesives for producing artificial boards can be adopted.

Hot-pressing or cold-pressing molding: and (3) pressing and fixing the glued arc-shaped bamboo sheet assembly vertically and laterally at the same time for natural solidification (a cold pressing method), or sending the assembly into a hot press for vertical and lateral simultaneous pressing and rapid solidification (a hot pressing method), so as to form the recombined bamboo wood.

1) Cold pressing process parameters

Working temperature: room temperature; vertical unit pressure: 2.0-2.5 Mpa; lateral unit pressure: 0.2-4.5 Mpa; the processing equipment adopts the following processing equipment in cold pressing, and the vertical pressing is larger than the lateral pressing when the processing equipment works; pressurizing time: 12-36 h; the implementation mode is as follows: and (5) fixing the clamp.

2) Hot pressing process parameters

Working temperature: 100-300 ℃; vertical unit pressure: 0.2-2.5 Mpa; lateral unit pressure: 0.2-4.5 Mpa; the hot pressing adopts the following processing equipment, and the vertical pressing is larger than the lateral pressing when the processing equipment works; pressurizing time: 2-4 min; the implementation mode is as follows: for the plate, a plane hot press or a special high-frequency hot press used in a solid wood floor production line is adopted; for longer (more than 3000 mm) square recombined materials, a continuous high-frequency hot press is adopted, so that internal heating and rapid solidification are facilitated.

Preferably, two hot pressing processes are adopted for processing the arc-shaped bamboo chip blank to the bamboo square, and the parameters of the two hot pressing processes are the same (namely the parameters of the hot pressing processes are adopted). As a common choice, the arc bamboo chip blank is processed into a bamboo square by adopting a hot pressing process and a cold pressing process, and the hot pressing process parameters and the cold pressing process parameters adopt the hot pressing process parameters and the cold pressing process parameters.

The processing method of the original ecological bamboo square of the invention is characterized in that the original form of the bamboo is kept to the maximum extent, and the utilization rate is improved. The natural bamboo material is tubular, the inner wall and the outer wall of the bamboo tube can be regarded as 2 concentric rings (note: the bamboo tube formed by the natural bamboo tube is not all standard circles, most of the bamboo tubes are approximate to circles), therefore, the radiuses of the inner arc and the outer arc of the bamboo blank are unequal, in order to realize the continuous matching and stacking of a plurality of bamboo chips, the bamboo blank is processed into the inner arc and the outer arc, the edge of one side of each light blank is circumferentially drawn and cut along the bamboo fiber direction by using a cutting knife, the side of each light blank, which is deviated from the longitudinal strip seam, is ground into a convex strip matched with the longitudinal strip seam on the adjacent light blank, the length direction of the two outermost light blanks is abutted by the processing equipment, the automatic mutual splicing of the two adjacent light blanks is ensured, and the structure of the recombined bamboo board (namely, the single bamboo board) is formed to be stable. Meanwhile, the cracking rate of the arc bamboo chip blank changed into the straight bamboo chip is reduced, and the fiber damage is reduced, which is one of the keys of the invention. The processing equipment of the recombined bamboo wood is basically the same as the processing equipment of joinery boards, plywood and the like in the field.

The invention has the advantages that: aiming at the characteristics of hollow and conical bamboo, large difference of physical and mechanical properties of bamboo green, bamboo yellow and bamboo joints and the like, the invention processes the round hollow bamboo into the arc-shaped bamboo blank, maintains the natural structure of the bamboo, and carries out original state bamboo blank recombination to develop the high-strength recombined bamboo material. The original state recombined material of the arc bamboo can replace precious wood and various artificial boards. The utilization rate of bamboo wood resources is improved, and forest resources are saved. The problems of low bamboo utilization rate, poor appearance quality, complex processing procedures and the like in the prior art are solved well. The invention adopts the inner layer to glue, the processed bamboo square 8 or bamboo board has no glue on the surface, is particularly suitable for furniture manufacture, building decoration, various artworks and bamboo chopping boards, and the produced bamboo board is beautiful and elegant, environment-friendly, sanitary and durable.

As shown in fig. 2, the processing equipment used in the method for processing the original ecological bamboo cubes, namely the processing equipment for the original ecological bamboo cubes, comprises a movable mold 1, a mold base 2, a frame 3 and more than two electric heating rods, wherein the movable mold 1 is located right above the mold base 2, the mold base 2 is installed on the frame 3, and the movable mold 1 is installed on the frame 3 so as to be movable towards the mold base 2. The machining equipment further comprises a left positioning block 4 positioned on the left side of the die holder 2 and a right positioning block 5 positioned on the right side of the die holder 2, wherein the left positioning block 4 and the right positioning block 5 are arranged on the rack 3 in a manner of being capable of moving in opposite directions or moving back to back. Specifically, the moving positioning and the limiting of the movable die 1 and the die holder 2 are the same as those of the existing pressing equipment, and the moving positioning and the limiting of the left positioning block 4 and the right positioning block 5 can be performed in the same manner as those of the movable die 1 and the die holder 2, or can be performed directly in a conventional manner in the field. By adopting the structure, the left positioning block 4 and the right positioning block 5 can move towards and away from each other, and when the left positioning block 4 and the right positioning block 5 move towards each other, the left positioning block 4 and the right positioning block 5 clamp the plurality of recombined bamboo chips in the horizontal direction (namely the left positioning block 4 and the right positioning block 5 can move towards each other and transversely clamp the recombined bamboo chips), so that the clamping force is generated on the plurality of recombined bamboo chips. Under the auxiliary action of clamping, the extension of the multiple recombined bamboo chips in the process of pressing the recombined bamboo chips into the bamboo squares 8 (namely the extension of the feeding direction of processing equipment in the direction perpendicular to the feeding direction) is effectively controlled, and the pressed bamboo squares 8 meet the required requirements. In addition, under the clamping auxiliary effect of the opposite movement of the left positioning block 4 and the right positioning block 5, the fiber damage of bamboo chips is greatly reduced, the crack amount of the bamboo chips is reduced, and the toughness and the resistance capability of the bamboo square 8 are improved. The pressed bamboo square 8 has beautiful appearance, reduces the glue consumption and greatly reduces the cost. In addition, under the action of the left positioning block 4 and the right positioning block 5, the width direction of the obtained bamboo square 8 is smoother, the material arrangement is convenient, the cutting amount of the bamboo chips is reduced (namely, the trimming amount of the edges of two sides in the width direction of the flattened bamboo chips is reduced, the bamboo material waste is reduced), the cost is reduced, and the economic benefit is improved.

The processing equipment for the original ecological bamboo square further comprises a first driving device, a second driving device and a third driving device, wherein the first driving device is provided with a power output end, the first driving device is positioned above the die holder 2, the power output end of the first driving device faces the die holder 2, the movable die 1 is fixedly connected with the power output end of the first driving device, and the first driving device can drive the movable die 1 to be vertically movably mounted on the rack 3; the second driving device is positioned at the left side of the die holder 2, the power output end of the second driving device faces the right positioning block 5, the second driving device is fixedly installed on the rack 3, and the second driving device drives the left positioning block 4 to transversely move on the rack 3; the third driving device is positioned at the right side of the die holder 2, a power output end of the third driving device faces the left positioning block 4, the third driving device is fixedly installed on the rack 3, and the second driving device drives the right positioning block 5 to transversely move on the rack 3.

Preferably, the rack 3 is provided with a fourth driving device located below the die holder 2, the fourth driving device is located below the die holder 2, the fourth driving device has a power output end for driving the die holder 2 to vertically move, and the die holder 2 and the fourth driving device have a power output end fixedly connected. By adopting the structure, the extrusion stroke is conveniently enlarged, a plurality of arc-shaped bamboo chips are conveniently stacked and extruded at the same time, the bamboo square 8 or bamboo processing and application device is suitable, the application range of the bamboo square 8 or bamboo processing and application device is widened, one machine has multiple purposes, the economic benefit is high, and the investment cost of enterprises is reduced.

In the above, the first driving device, the second driving device, the third driving device and the fourth driving device may be any driving devices that are conventional in the art. For example, a conventional stepper motor, a combination of a lead screw and a lead screw nut, or a combination of a conventional oil cylinder and a photoelectric sensor, etc. may be used.

In this embodiment, the frame 3 is provided with a first sliding mechanism for guiding the movement of the left positioning block 4, the first sliding mechanism is located below the left positioning block 4, the frame 3 is provided with a second sliding mechanism for guiding the movement of the right positioning block 5, and the first sliding mechanism is located below the right positioning block 5. Adopt above-mentioned structure setting, the first slide mechanism of setting, the left locating piece 4 removal direction of being convenient for removes smoothly and laborsavingly, reduces the friction between left locating piece 4 removal and the frame 3 simultaneously, reduces energy loss, and noise pollution reduces, provides healthy operational environment. The second sliding mechanism is convenient for the right positioning block 5 to move and guide, the movement is smooth and labor-saving, meanwhile, the friction force between the right positioning block 5 and the rack 3 is reduced, the energy loss is reduced, the noise pollution is reduced, and a healthy working environment is provided.

Preferably, the first sliding mechanism is a first sliding rail (not shown in the figure) and a first sliding block (not shown in the figure), the first sliding rail is horizontally arranged on the frame 3, the first sliding rail is fastened or welded on the frame 3 through bolts, and the right end of the first sliding rail is located outside the area above the die holder 2, so that the occupation of the space above the die holder 2 can be avoided, and the utilization of the extrusion space is maximized. It should be clarified here that, although the left end of the second slide rail is located outside the area above the die holder 2, the right positioning block 5 can be moved into the space above the die holder 2, so that the convenient use of the arc-shaped bamboo chips with different sizes can be applicable. The first sliding block is fastened or welded on the left positioning block 4 through a bolt, and the first sliding block is in sliding fit with the first sliding rail; the second sliding mechanism is a second sliding rail (not shown in the figure) and a second sliding block (not shown in the figure), the second sliding rail is horizontally arranged on the rack 3, the second sliding rail is fastened or welded on the rack 3 through bolts, and the left end part of the second sliding rail is positioned outside the area above the die holder 2, so that the occupation of the space above the die holder 2 can be avoided, and the utilization of the extrusion space is maximized. It should be clarified here that, although the left end of the second slide rail is located outside the area above the die holder 2, the right positioning block 5 can be moved into the space above the die holder 2, so that the convenient use of the arc-shaped bamboo chips with different sizes can be applicable. The second sliding block is fastened or welded on the right positioning block 5 through a bolt, and the second sliding block is in sliding fit with the second sliding rail.

It should be noted that the first slide rail and the second slide rail may be in the same straight line. And at least one (namely the first slide rail and the second slide rail can be two) of first slide rail and second slide rail, for according to actual need, install corresponding first slider at first slide rail, install corresponding second slider at the second slide rail. The cooperation between the first slide rail and the first slide block is not further limited to the function of the first slide mechanism, but is preferred. The first sliding mechanism may also take on other conventional configurations in the art. Similarly, the cooperation between the second slide rail and the second slide block is not further limited to the second slide mechanism, but is merely preferable. The second sliding mechanism may also take other conventional configurations in the art.

Preferably, a lifting device which can control the vertical lifting of the left positioning block 4 and the right positioning block 5 simultaneously is installed on the frame 3 in a conventional manner in the field according to actual needs. A first lifting device for controlling the vertical lifting of the left positioning block 4 can be mounted on the first sliding mechanism (i.e. a first lifting device for vertical lifting is mounted on the first slide block), and a second lifting device for controlling the vertical lifting of the right positioning block 5 can be mounted on the second sliding mechanism (i.e. a second lifting device for vertical lifting is mounted on the second slide block) in a conventional manner in the art. Therefore, as the movable die 1 and the die holder 2 are lifted, the left positioning block 4 and the right positioning block 5 can be always flush with each other and are respectively positioned on two sides of the width direction of the arc-shaped bamboo chip, and the arc-shaped bamboo chip is assisted to be clamped. In addition, can set up the first detachable construction (promptly first detachable construction can be tenon and tongue-and-groove) that conveniently dismantle left locating piece 4 at first slider, be convenient for like this as required or left locating piece 4 use direct quick replacement when wearing and tearing, reduce the maintenance cost. In the same way, a second detachable structure (namely, the second detachable structure can be a tenon and a mortise which are the same as the first detachable structure) which is convenient for detaching the right positioning block 5 can be arranged on the second sliding block, so that the right positioning block 5 can be directly and quickly replaced when being worn as required, and the maintenance cost is reduced.

Further preferably, a first graduated scale (not shown) is arranged on the frame 3, and the position of the left edge of the left positioning block 4 is visually measured through the first graduated scale, so that direct observation and measurement are facilitated, and time is saved. Meanwhile, the movement amount of the left positioning block 4 is convenient to count, and the machine is adjusted and debugged according to the difference of the widths of the arc-shaped bamboo chips. The first graduated scale and the first slide rail are arranged side by side, a second graduated scale (not shown in the figure) is arranged on the rack 3, and the edge position of the right side of the right positioning block 5 is visually measured through the first graduated scale, so that the direct observation and the measurement are convenient, and the time is saved. Meanwhile, the movement amount of the right positioning block 5 is convenient to count, and the machine is adjusted and debugged according to the difference of the widths of the arc-shaped bamboo chips. The second graduated scale and the second slide rail are arranged side by side; the first graduated scale and the second graduated scale are positioned on the same straight line. The first graduated scale and the second graduated scale can also be directly and equivalently replaced by the graduated scales with zero middle graduation and increasing numerical values along two sides.

In this embodiment, return channels (not shown in the figure) for storing heat conducting oil are disposed in the movable mold 1, the mold base 2, the left positioning block 4, and the right positioning block 5, where the return channels are disposed on the movable mold 1, the mold base 2, the left positioning block 4, and the right positioning block 5 in a conventional manner in the art. The movable die 1, the die holder 2, the left positioning block 4 and the right positioning block 5 are all provided with a plurality of mounting holes communicated with the corresponding backflow channels, wherein the backflow channels are formed in a conventional mode in the field, and the mounting holes are provided with internal threads (namely internal thread holes). The mounting holes are respectively positioned on the front/rear side walls of the movable die 1, the die holder 2, the left positioning block 4 and the right positioning block 5, the electric heating rods are assembled on the mounting holes, and the electric heating rods are tightly matched and sealed with the contact parts of the mounting holes. The heat conducting oil is heated by an electric heating rod. The electric heating rod is directly selected from the prior art.

In this embodiment, a first rubber pad 6 is installed on the left positioning block 4, the first rubber pad 6 is located on the side surface of the left positioning block 4 opposite to the right positioning block 5, a second rubber pad 7 is installed on the right positioning block 5, the second rubber pad 7 is located on the side surface of the right positioning block 5 opposite to the left positioning block 4, and specifically, the first rubber pad 6 and the second rubber pad both adopt the existing silica gel pad or rubber pad. First rubber pad 6 and second rubber pad thickness set up according to actual need. Preferably, the first rubber pad 6 and the second rubber pad 7 have the same size corresponding to the left area of the left positioning block 4 and the right area of the right positioning block 5. And the first rubber pad and the second rubber pad are both provided with anti-skidding structures. The anti-slip structure can be a plurality of grooves which are vertically arranged side by side, and the grooves are used for embedding the arc edges of the arc bamboo chips for positioning. The anti-slip structure can also be an anti-slip pattern which is integrally formed with the rubber pad. Adopt above-mentioned structure setting, set up first rubber pad 6 and second rubber pad 7, avoid leaning on too rigidity with arc bamboo chip contact top, simple structure, buffering are effectual and stable. Meanwhile, noise pollution is effectively avoided, and the method is more beneficial to environmental protection.

The working process of the processing equipment of the original ecological bamboo square provided by the invention is as follows:

when the bamboo strip extruding die works, the movable die 1 moves towards the die holder 2 to extrude arc-shaped bamboo strips between the movable die 1 and the die holder 2 in the vertical direction. Meanwhile, the left positioning block 4 moves towards the right positioning block 5 to push against the left edge and the right edge of the plurality of recombined bamboo boards. Along with the extrusion of the movable die 1 on the multiple recombined bamboo boards, the multiple recombined bamboo boards are attached more tightly and more compactly, at the moment, the left positioning block 4 abuts against the right positioning block 5 to buffer the attaching speed of the multiple recombined bamboo boards, and the left and right directions of the multiple recombined bamboo boards are simultaneously abutted against the left positioning block 4 and the right positioning block 5 (namely, the left positioning block 4 and the right positioning block 5 move oppositely to clamp and assist in action), so that the manufactured bamboo square 8 is integrally more compact, and the manufactured bamboo square 8 is more compact than the existing pressing equipment. In the process, the fiber damage of the bamboo chips is greatly reduced, the crack amount of the bamboo chips is reduced, and the toughness and the resistance capability of the bamboo square 8 are improved. The pressed bamboo square 8 has beautiful appearance, reduces the glue consumption and greatly reduces the cost. Therefore, the bamboo square 8 obtained by the method meets the requirements better and has higher economic benefit. In addition, the width direction of the obtained bamboo square 8 can be smoother, the material arrangement is convenient, the cutting amount of the bamboo chips (namely, the trimming amount of the edges of two sides in the width direction of the flattened bamboo chips is reduced, the bamboo material waste is reduced) is reduced, the cost is reduced, and the economic benefit is improved.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.