Processing technology of wood composite template

Abstract

The invention belongs to the technical field of building template manufacturing, and particularly relates to a wood composite template processing technology which comprises the following steps: selecting wood for blanking; wood is rotationally cut into wood chips; airing the wood chips; the aired wood chips are subjected to edge trimming and splicing in sequence through an edge trimming and gluing device and then glued and bonded into battens; the battens are cut off, stacked together and pre-pressed to obtain prefabricated slabs; the prefabricated plate is sequentially subjected to red pressing, hot pressing, sizing edge cutting and edge sealing to obtain the wood composite plate, the machining sequence is changed through the technology, and the recycling purpose of wood waste is expanded; mechanical operation of wood chip trimming and splicing steps is achieved through the trimming and gluing device, the manual participation degree is reduced, the production efficiency and the wood chip splicing quality are effectively improved, and the formwork quality can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of building template manufacturing, and in particular relates to a processing technology of a wooden composite template. Background Art

[0002] Wooden formwork is light in weight, which can improve construction efficiency during construction. It is also low in cost and highly processable. It can meet construction requirements of various shapes and sizes, so it occupies an important position in construction. The traditional production of wooden formwork is to peel wood into small pieces of wood, and then manually splice the small pieces of wood after gluing, and finally press them. The wood pieces produced by peeling are prone to uneven edges. In order to ensure the flatness of the wooden formwork, the edges of the wood pieces need to be overlapped before splicing, and the uneven edges of the overlaps need to be cut with a blade, and then spliced. The traditional production process has a high degree of manual participation and low production efficiency. In addition, the edges of the wood pieces cut off after gluing are not conducive to the recycling of wood and will also cause waste of glue. Summary of the invention

[0003] In order to solve the problems existing in the above-mentioned prior art, the present invention provides a processing technology for a wooden composite formwork, which changes the processing sequence and expands the recycling use of wood waste. The trimming and gluing device can be used to realize the mechanized operation of the wood chip trimming and splicing steps, reduce the degree of manual participation, effectively improve the production efficiency and the quality of wood chip splicing, and help improve the quality of the formwork.

[0004] The specific technical solution adopted by the present invention is:

[0005] A processing technology for a wood composite formwork comprises the following steps:

[0006] S1. Select wood for cutting and saw the wood into specified lengths;

[0007] S2, peeling the wood into wood chips;

[0008] S3, drying wood chips;

[0009] S4, trimming and splicing the dried wood chips in sequence with the aid of a trimming and gluing device, and then gluing and bonding them into strips;

[0010] S5, cutting the strips, stacking them together and pre-pressing them to obtain prefabricated panels;

[0011] S6. The prefabricated panels are subjected to red-processing and hot pressing in sequence, and then are cut to length and edge-sealed to obtain wood composite panels.

[0012] A trimming and gluing device used in the processing technology of a wood composite formwork comprises a trimming machine and a gluing machine. The trimming machine comprises a conveying platform with a trimming seam, a material pressing piece matched with the conveying platform, a double-sheet sensor, a lifting block and a translation block. The double-sheet sensor is located on the conveying platform, the lifting block is located above the trimming seam and has the freedom to enter and exit the trimming seam, the translation block is located on both sides of the trimming seam and has the freedom to move toward the trimming seam, the translation block is respectively provided with a cutting knife, the lifting block is provided with a cutting edge matched with the cutting knife, and the lifting block is also provided with a supporting unit for lifting the end of the wood chip. The output end of the conveying platform is connected to the input end of the gluing machine.

[0013] The feeding direction of the trimming machine is arranged perpendicularly to the wood grain direction of the wood chips, a trimming opening is provided on the lifting block, a pair of first comb teeth arranged along the wood grain direction are arranged at the upper end of the trimming opening, the teeth of the two first comb teeth are arranged crosswise, a second comb tooth is arranged above the cutting knife and is plugged into the first comb tooth on the translation block, the end of the cutting knife is located in front of the second comb tooth, the cutting edge is arranged at the lower edge of the trimming opening, and the trimming opening forms a supporting unit.

[0014] The first comb teeth are arranged on the lifting block in an inclined manner from outside to inside and downward, and the inclined direction of the tooth ends of the second comb teeth is arranged opposite to the inclined direction of the first comb teeth.

[0015] Both sides of the root of the first comb teeth are respectively provided with clamping grooves.

[0016] The lifting block is a tubular structure with an opening at the lower end, and an air pipe with the blowing direction toward the lower end of the lifting block is arranged on the lifting block.

[0017] The material pressing piece is a conveying roller.

[0018] The glue coating machine is a double-sided glue coating machine, including a first conveyor belt, a pair of glue coating rollers and a second conveyor belt arranged in sequence along the conveying direction. The input end of the first conveyor belt is connected to the output end of the conveying platform, and a hair dryer is arranged above the second conveyor belt.

[0019] The beneficial effects of the present invention are:

[0020] The present invention uses a double sheet sensor to detect the overlapped portion, so that the conveying of the overlapped portion of the wood slices stops when it passes above the trimming seam, and then the ends of the two adjacent wood slices are pressed down by means of a lifting block, and the edges of the wood slices are trimmed in combination with the movement of the translation block, without manual intervention, thereby improving the splicing quality and effectively improving the production efficiency;

[0021] The gluing step is arranged after the trimming step, which saves the use of glue and prevents the waste of glue. On the other hand, the wood waste generated by trimming is not coated with glue, which reduces chemical pollution and can be recycled as a raw material for fuel, feed, and fertilizer, thereby expanding the recycling use of wood waste.

[0022] The lifting block and the translation block are respectively provided with a first comb tooth and a second comb tooth. The first comb tooth and the second comb tooth cooperate to cut the edge of the wood chip into a comb-tooth structure. The edges of the comb-tooth structures of two adjacent wood chips are plugged into each other, which increases the contact area between the wood chips and makes the connection between the wood chips in the spliced ​​strips more firm, which helps to improve the strength of the formwork. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the edge trimming and gluing device of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the lifting block;

[0025] Figure 3 It is a structural diagram of the translation block;

[0026] Figure 4 is a process flow chart of step S4;

[0027] In the accompanying drawings, 1, wood chips, 2, trimming seams, 3, conveying platforms, 4, double sheet sensors, 5, first comb teeth, 501, teeth, 6, lifting blocks, 7, second comb teeth, 701, tooth ends, 8, translation blocks, 9, cutting knives, 10, trimming openings, 11, cutting edges, 12, card slots, 13, air pipes, 14, first conveyor belts, 15, glue coating rollers, 16, second conveyor belts, 17, hair dryers, and 18, presses. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0029] A specific embodiment is a processing technology of a wood composite formwork, comprising the following steps:

[0030] S1. Select wood for cutting and saw the wood into specified lengths;

[0031] S2, peeling the wood into wood chips 1 with uniform thickness;

[0032] S3, drying wood chips 1;

[0033] S4, trimming and splicing the dried wood chips 1 with the aid of a trimming and gluing device, and then gluing and bonding them into strips;

[0034] S5, cutting the strips, stacking them together and pre-pressing them to obtain prefabricated panels;

[0035] S6. The prefabricated panels are sequentially red-processed and hot-pressed, and then cut to size according to the size of the template, and finally the prefabricated panels are edge-sealed to obtain the wood composite panels.

[0036] In this processing technology, the wood chips 1 are spliced ​​and trimmed before being glued to form strips, which reduces the waste of glue caused by trimming after gluing. On the other hand, the wood waste generated by trimming is not coated with glue, which reduces chemical pollution and can be recycled as a raw material for fuel, feed, and fertilizer, thereby expanding the recycling of wood waste.

[0037] The trimming and gluing device used in step S4 includes a trimming machine and a gluing machine, such as Figure 1-4 As shown, the trimming machine includes a conveying platform 3 with a trimming seam 2, a material pressing piece 18 matched with the conveying platform 3, a double sheet sensor 4, a lifting block 6 and a translation block 8. The double sheet sensor 4 is located on the conveying platform 3, the lifting block 6 is located above the trimming seam 2 and has the freedom to enter and exit the trimming seam 2, the translation block 8 is located on both sides of the trimming seam 2 and has the freedom to move toward the trimming seam 2, and the translation block 8 is respectively provided with a cutting knife 9, and the lifting block 6 is provided with a cutting edge 11 matched with the cutting knife 9. The lifting block 6 is also provided with a supporting unit for lifting the end of the wood chip 1, and the output end of the conveying platform 3 is connected to the input end of the glue coating machine. The material pressing piece 18 is a conveying roller, and the conveying and pressing of the wood chip 1 is achieved by the rotation of the conveying roller. The lifting block 6 and the translation block 8 are both moved by means of a cylinder. The surface of the conveying roller is made of rubber.

[0038] During operation, the dried wood chips 1 are placed on the conveying platform 3 of the trimming machine, the conveying rollers rotate to convey the wood chips 1, and the ends of two adjacent wood chips 1 overlap to form an overlapping portion, the double sheet sensor 4 detects the overlapping portion of the wood chips 1 on the conveying platform 3, obtains the distance between the overlapping portion and the trimming seam 2, and combines the conveying speed of the conveying platform 3 to make the middle section of the overlapping portion located above the trimming seam 2, the conveying rollers stop rotating and cooperate with the conveying platform 1 to clamp the wood chips 1 to prevent the wood chips 1 from moving during the trimming process. Figure 4 Then the lifting block 6 carrying the cutting edge 11 descends, and the ends of the two wood pieces 1 are pressed down by the trimming seam 2, as Figure 4 As shown in step b; the translation block 8 carries the cutting knife 9 to move in the direction of the trimming seam 2, and the cutting knife 9 cooperates with the cutting edge 11 to cut off the edge of the wood chip 1, such as Figure 4 As shown in step c; the translation block 8 retreats, the lifting block 6 rises, and the supporting unit on the lifting block 6 lifts the end of the wood chip 1 to the top of the conveying platform 3, as shown Figure 4 As shown in step e, the ends of the wood chips 1 are spliced ​​together to prevent overlapping portions between the wood chips 1 from affecting the flatness of the template.

[0039] Furthermore, the feeding direction of the trimming machine is arranged perpendicularly to the wood grain direction of the wood chip 1, a trimming opening 10 is opened on the lifting block 6, a pair of first comb teeth 5 arranged along the wood grain direction are arranged at the upper end of the trimming opening 10, the teeth 501 of the two first comb teeth 5 are arranged crosswise, and a second comb tooth 7 located above the cutting knife 9 and plug-fitting with the first comb tooth 5 is arranged on the translation block 8, the end of the cutting knife 9 is located in front of the second comb tooth 7, the cutting edge 11 is arranged at the lower edge of the trimming opening 10, and the trimming opening 10 forms a material supporting unit. During the movement of the translation block 8 toward the direction of the trimming seam 2, the cutting knife 9 first cooperates with the cutting edge 11 to trim the wood chip 1 to make the edge of the wood chip 1 neat, and then the second comb teeth 7 enter the trimming opening 10, and the tooth end of the second comb teeth 7 passes through the end of the wood chip 1 and is inserted between the teeth of the first comb teeth 5. The first comb teeth 5 and the second comb teeth 7 cooperate to effectively cut the texture of the end of the wood chip 1 to form a comb-shaped end, and make the end of the wood chip 1 tilt toward the trimming opening 10, and then the translation block 8 carries the second comb teeth 7 to exit the trimming opening 10, and the air pipe 13 continues to blow air downward to make the wood chip 1 overlap the lower edge of the trimming opening 10, and the lifting block 6 rises upward. During the lifting process, the lower edge of the trimming opening 10 pushes the end of the wood chip 1 upward. Figure 4 As shown in step d, the end of the wood chip 1 rises to the conveying platform 3; because the teeth 501 of the two first comb teeth 5 are arranged crosswise, the comb-shaped ends of the two adjacent spliced ​​wood chips 1 after trimming are interlaced and spliced, which effectively increases the contact area between the wood chips 1, making the connection between the wood chips 1 in the spliced ​​strips more firm, which helps to improve the strength of the template. Then the conveying roller continues to work to convey the rice chip 1 and roll the end of the wood chip 1, so that the comb-shaped edges between the two wood chips 1 are spliced.

[0040] Furthermore, the first comb tooth 5 is arranged on the lifting block 6 to be inclined downward from the outside to the inside, which can extend the length of the tooth 501, ensure that the edge of the wood chip 1 is cut into a tooth-like structure by the first comb tooth 5 and the second comb tooth 7, and at the same time prevent the lower end of the first comb tooth 5 from interfering with the cutting knife 9. The inclination direction of the tooth end 701 of the second comb tooth 7 is set opposite to the inclination direction of the first comb tooth 5, and the tooth end 701 of the second comb tooth 7 is inserted between the teeth 501. As the second comb tooth 7 continues to move forward, the tooth end 701 gradually cuts into the wood chip 1 and pushes the broken waste of the wood chip 1 downward, so that the waste falls and is collected.

[0041] Furthermore, slots 12 are provided on both sides of the root of the first comb tooth 5, and the slots 12 hook the toothed edges of the wood chip 1 to prevent the wood chip 1 from falling off from the trimming mouth 10, thereby ensuring that the lifting block 6 can effectively lift the end of the wood chip 1. The lifting block 6 continues to rise, and the edge of the wood chip 1 is disengaged from the slot 12 due to the pressing effect of the pressed material 18.

[0042] The lifting block 6 is a tubular structure with an opening at the lower end. An air pipe 13 is provided on the lifting block 6 with the blowing direction toward the lower end of the lifting block 6. The air pipe 13 blows air into the lifting block 6 to further ensure that the waste cut off by the first comb teeth 5 and the second comb teeth 7 falls down, preventing the waste from rising with the lifting block 6.

[0043] The gluing machine is a double-sided gluing machine, including a first conveyor belt 14, a gluing roller 15 and a second conveyor belt 16 arranged in sequence along the conveying direction, and also including a blower 17 cooperating with the second conveyor belt 16. The input end of the first conveyor belt 14 is connected to the output end of the conveying platform 3, and the wood chips 1 output from the conveying platform 3 enter the first conveyor belt 14 and are transported by the first conveyor belt 14 to between the gluing rollers 15. Figure 4 As shown in step f, the glue-coating rollers 15 apply glue to the upper and lower surfaces of the two spliced ​​wood chips 1, and the glue penetrates into the joints between the two wood chips 1. Then the wood chips 1 are sent to the second conveyor belt 16 and pass through the hair dryer 17, wherein the second conveyor belt 16 is composed of a group of conveyor rollers, and the hair dryers 17 are arranged above and below the second conveyor belt 16. The hair dryers 17 blow air to pre-dry the glue on the wood chips 1 to enhance the connection strength between the joints of the wood chips 1, and the wood chips 1 are spliced ​​to form strips.

Claims

1. A processing technology for a wood composite formwork, characterized in that: The following steps are involved: S1. Select wood for cutting and saw the wood into specified lengths; S2, peeling the wood into wood chips (1); S3, drying wood chips (1); S4, trimming and splicing the dried wood chips (1) with the aid of a trimming and gluing device, and then gluing and bonding them into strips; S5, cutting the strips, stacking them together and pre-pressing them to obtain prefabricated panels; S6. The prefabricated panels are subjected to red-processing and hot pressing in sequence, and then are cut to length and edge-sealed to obtain wood composite panels.

2. The edge trimming and gluing device for processing a wood composite formwork according to claim 1, characterized in that: The trimming and gluing device comprises a trimming machine and a gluing machine. The trimming machine comprises a conveying platform (3) with a trimming seam (2), a material pressing piece (18) matched with the conveying platform (3), a double sheet sensor (4), a lifting block (6) and a translation block (8). The double sheet sensor (4) is located on the conveying platform (3). The lifting block (6) is located above the trimming seam (2) and has the freedom to enter and exit the trimming seam (2). The translation block (8) is located on both sides of the trimming seam (2) and has the freedom to move toward the trimming seam (2). Cutting knives (9) are respectively arranged on the translation block (8). The lifting block (6) is provided with a cutting edge (11) matched with the cutting knife (9). The lifting block (6) is also provided with a supporting unit for lifting the end of the wood chip (1). The output end of the conveying platform (3) is connected to the input end of the gluing machine.

3. The edge trimming and gluing device for processing a wood composite formwork according to claim 2, characterized in that: The feeding direction of the trimming machine is arranged perpendicularly to the wood grain direction of the wood chip (1); the lifting block (6) is provided with a trimming opening (10); the upper end of the trimming opening (10) is provided with a pair of first comb teeth (5) arranged along the wood grain direction; the teeth (501) of the two first comb teeth (5) are arranged crosswise; the translation block (8) is provided with a second comb tooth (7) located above the cutting knife (9) and plug-fitting with the first comb tooth (5); the end of the cutting knife (9) is located in front of the second comb tooth (7); the cutting edge (11) is arranged at the lower edge of the trimming opening (10); and the trimming opening (10) forms a material supporting unit.

4. The edge trimming and gluing device for processing a wood composite formwork according to claim 3 is characterized in that: The first comb teeth (5) are arranged on the lifting block (6) in an inclined manner from outside to inside and downward, and the inclination direction of the tooth ends (701) of the second comb teeth (7) is arranged opposite to the inclination direction of the first comb teeth (5).

5. The edge trimming and gluing device for processing a wood composite formwork according to claim 3 is characterized in that: Both sides of the root of the first comb teeth (5) are respectively provided with clamping grooves (12).

6. The edge trimming and gluing device for processing a wood composite formwork according to claim 3, characterized in that: The lifting block (6) is a tubular structure with an open lower end, and an air pipe (13) is provided on the lifting block (6) with the blowing direction facing the lower end of the lifting block (6).

7. The edge trimming and gluing device for processing a wood composite formwork according to claim 1, characterized in that: The material pressing member (18) is a conveying roller.

8. The edge trimming and gluing device for processing a wood composite formwork according to claim 1, characterized in that: The gluing machine is a double-sided gluing machine, comprising a first conveying belt (14), a pair of gluing rollers (15) and a second conveying belt (16) arranged in sequence along the conveying direction, the input end of the first conveying belt (14) is connected to the output end of the conveying platform (3), and a blower (17) is arranged above the second conveying belt (16).

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