CN101947801B - Complete production equipment for laminated veneer lumbers - Google Patents

Abstract

The invention discloses a complete set of production equipment for laminated veneer lumber. Between the machine and the veneer pre-pressing machine, a telescopic feeder and a numerical control positioning billet grouping machine are arranged sequentially, while between the veneer pre-pressing machine and the storage table, there are sequentially arranged a mobile cut-off saw and a conveying roller, among which , Abrasive belt inclined milling machine, gluing machine, telescopic feeder, CNC positioning billet grouping machine, veneer pre-pressing machine, mobile cut-off saw, conveying roller, storage table and multi-layer hot press are connected in a forward direction, through The operating platform forms a production line. Compared with the traditional complete set of production equipment for laminated veneer lumber, the present invention saves equipment investment, because the numerical control positioning blank assembly machine is adopted, so that the positioning of the veneer is very accurate, the production efficiency and product quality are significantly improved, and the blank assembly It can be extended infinitely, and the production range of the laminated veneer lumber is enlarged. Meanwhile, the automation degree of the present invention is also significantly high.

Description

Complete set of production equipment for laminated veneer lumber

technical field

The invention relates to a complete set of production equipment for laminated veneer lumber, belonging to the technical field of wood processing equipment.

Background technique

Figure 1 is a schematic diagram of the production process of traditional laminated veneer lumber.

As shown in Figure 1: The traditional LVL production process is as follows: firstly, the veneer is milled by an abrasive belt inclined milling machine, after the milled veneer is manually glued, the two veneer slopes are connected by electric Heat the hot press to lengthen, and then cut the lengthened veneer into a certain length according to the demand, such as 4m. Then assemble the blanks, that is, put the bottom plate on the blank forming platform first, and stack the veneers after gluing layer by layer. It should be noted that the joints of the connected long veneers do not overlap. Finally, add the panel and put The laminated veneer lumber slab that has been assembled is sent to the single-layer pre-pressing machine for pre-pressing; the pre-pressed laminated veneer lumber is heated and pressed by the multi-layer hot press; the entire veneer layer After trimming the edges of the laminated timber, the entire laminated veneer timber is cut into squares or other timbers of required specifications, and the final step is sanding and packing.

Fig. 3 is a schematic structural diagram of a complete set of production equipment for traditional laminated veneer lumber.

As shown in Figure 3: In the production process of the above-mentioned single-layer board, the complete production equipment of the traditional laminated veneer lumber includes: Abrasive belt inclined milling machine 1, hot press machine 2, shearing machine 3, glue coating machine 4. It is composed of a billet forming table 5, a veneer pre-pressing machine 6, a material storage table 7 and a multi-layer hot pressing machine (not shown in the figure), the above-mentioned abrasive belt inclined milling machine 1, hot pressing machine 2, and plate shearing machine 3 , gluing machine 4, blank forming table 5, veneer pre-pressing machine 6, material storage table 7 and multi-layer hot press are connected in sequence, and a production line is formed through the operating platform 8. When the complete set of production equipment for laminated veneer lumber produces laminated veneer lumber, many equipments are used, the process is complicated, raw materials are wasted, and the production efficiency is low, and the quality of the laminated veneer lumber produced by this complete set of equipment cannot be obtained. ensure.

Contents of the invention

In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a complete set of production equipment for laminated veneer lumber with high production efficiency, effective saving of raw materials and guaranteed product quality.

The present invention is achieved through the following technical solutions:

A complete set of production equipment for laminated veneer lumber, including an abrasive belt inclined milling machine, a gluing machine, a veneer pre-pressing machine, a material storage table and a multi-layer hot press, characterized in that the gluing machine and the veneer A telescopic feeder and a numerical control positioning billet grouping machine are arranged sequentially between the pre-pressing machines, while a mobile cut-off saw and a conveying roller are sequentially arranged between the veneer pre-pressing machine and the storage table. Milling machine, gluing machine, retractable feeder, CNC positioning billet forming machine, veneer pre-pressing machine, mobile cut-off saw, conveying roller, material storage table and multi-layer hot press are connected in parallel, forming a one-stop system through the operating platform. production line.

The above-mentioned telescopic feeder includes a plurality of socketed telescopic plates, and one end of the telescopic feeder is connected to the discharge port of the gluing machine, and the other end is connected to the blank forming platform of the numerical control positioning blank forming machine.

The above-mentioned numerical control positioning billet grouping machine includes a billet grouping platform, a conveyor belt controlled by a conveying motor, a backer whose up and down reciprocating motion is controlled by a cylinder, a walking trolley controlled by a motor and a control switch, wherein the conveyor belt is set on the billet grouping platform , the backing is set on the upper part of the billet forming platform, which is connected with the walking trolley, and the bottom end of the walking trolley is provided with rollers, which cooperate with the parallel guide rails arranged on the front and rear sides of the billet forming platform. The above-mentioned conveyor belt, walking trolley and backing are all Connect with the control switch through the control system.

The veneer pre-pressing machine is a discontinuous veneer pre-pressing machine, and the pre-pressing length is greater than the length of two veneers.

Further, the above-mentioned mobile cut-off saw includes a frame, a roller arranged at the bottom of the frame and matched with a track on the ground, a sawing mechanism, a saw blade travel mechanism, a saw blade travel motor, a pressing block, a limit stop and Fixed-length pull rod, wherein the sawing mechanism is arranged on one side inside the frame, which is connected with the saw blade traveling motor arranged on the other side inside the frame through the saw blade traveling mechanism, and the pressing block is arranged on the upper part of the frame. It is connected with the compression cylinders fixed on both sides outside the frame, and the front side of the worktable of the frame is also connected with a fixed-length pull rod for plate length fixing, and a limit stop is also arranged on the fixed-length pull rod.

And above-mentioned sawing mechanism comprises saw blade, sawing motor and saw blade lifting cylinder, wherein, saw blade and sawing motor are connected by belt or chain, and saw blade lifting cylinder is then arranged at the bottom of saw blade, and through piston and Saw connection.

The beneficial effect of the present invention is: compared with the traditional complete set of production equipment of laminated veneer lumber, the present invention removes the veneer miter joint and shearing device, saves equipment investment, and because the blank forming process adopts numerical control positioning The billet assembly machine makes the positioning very accurate during the billet assembly process, and the production efficiency and product quality are significantly improved. In addition, due to the linkage between the CNC positioning billet assembly machine and the intermittent veneer pre-pressing machine, the blank assembly board can be It can be infinitely extended, and can cut LVL of any length and specification. Because the cut-off adopts a mobile cut-off saw, it also greatly improves the automation of production, saves labor and improves efficiency.

Description of drawings

Fig. 1 is a schematic diagram of the production process of traditional laminated veneer lumber;

Figure 2 is a schematic diagram of the production process of the new laminated veneer lumber;

Fig. 3 is the structural schematic diagram of the complete set of production equipment of traditional laminated veneer lumber;

Fig. 4 is a structural schematic diagram of an embodiment of the present invention;

Fig. 5 is a structural schematic diagram of the numerical control positioning billet assembly machine according to the present invention;

Fig. 6 is the front view of the mobile chop saw of the present invention;

Fig. 7 is a side view of the mobile chop saw according to the present invention.

Among them, the meanings of the main reference signs in the figure are:

1. Abrasive belt inclined milling machine 2. Hot press machine 3. Shearing machine

4. Glue coating machine 5. Blank forming table 6. Veneer pre-pressing machine

7. Material storage platform 8. Operating platform 9. Telescopic feeder

10. CNC positioning billet assembly machine 11. Mobile cut-off saw 12. Conveyor roller

13. Blank assembly platform 14. Conveyor belt 15. Walking trolley

16. Backing 17. Roller

Detailed ways

The specific embodiment of the present invention will be described in detail below in conjunction with accompanying drawing:

Fig. 4 is a schematic structural diagram of an embodiment of the present invention.

As shown in Figure 4: a complete set of production equipment for laminated veneer lumber, including abrasive belt inclined milling machine 1, gluing machine 4, telescopic feeder 9, CNC positioning billet forming machine 10, veneer pre-pressing machine 6, mobile Type cut-off saw 11, conveying roller 12, material storage table 7 and multi-layer hot press (not shown in the figure), wherein, abrasive belt inclined milling machine 1, gluing machine 4, telescopic feeder 9, numerical control positioning group Blank machine 10, veneer pre-pressing machine 6, mobile cut-off saw 11, conveying roller 12, material storage platform 7 and multi-layer hot press are connected in a forward direction, and a production line is formed through operating platform 8, and the above-mentioned telescopic feeder 9 includes a plurality of socketed telescopic plates. In this embodiment, there are two telescopic plates, and one end of the telescopic feeder 9 is connected to the discharge port of the gluing machine 4, and the other end is connected to the CNC positioning blank assembly machine 10 is connected to the blank forming platform. In addition, the veneer pre-pressing machine 6 is a discontinuous veneer pre-pressing machine, and the pre-pressing length is greater than or equal to the length of two veneers.

Fig. 5 is a structural schematic diagram of the numerical control positioning blank assembly machine according to the present invention.

As shown in Figure 5: the CNC positioning billet assembly machine 10 includes a billet assembly platform 13, a conveyor belt 14 controlled by a conveying motor, a backer 16 that controls its up and down reciprocating motion through a cylinder, a walking trolley 15 controlled by a motor and a control switch, wherein , the conveyor belt 14 is arranged on the billet forming platform 13, and the backer 16 is arranged on the upper part of the billet forming platform, which is connected with the walking trolley 15, and the bottom end of the traveling trolley 15 is provided with a roller 17, and the roller 17 is arranged on the front and rear of the billet forming platform 13. The parallel guide rails on both sides cooperate, and the above-mentioned conveyor belt 14, walking trolley 15 and backer 16 are all connected with the control switch through the control system.

Fig. 6 is a side view of the mobile chop saw according to the present invention; Fig. 7 is a front view of the mobile chop saw according to the present invention.

As shown in Figure 6 and Figure 7: the mobile cut-off saw includes a frame 112, a roller that is arranged at the bottom of the frame 112 and cooperates with the track 111 on the ground, a sawing mechanism, a saw blade travel mechanism 118, and a saw blade travel motor 119 , a pressing block 114, a limit block 122 and a fixed-length pull rod 121, wherein the sawing mechanism is arranged on one side inside the frame 112, and it is arranged on the other side inside the frame 112 through the saw blade traveling mechanism 118. Saw blade traveling motor 119 is connected, and sawing mechanism comprises saw blade 116, sawing motor 5 and saw blade lifting cylinder 117, and saw blade 116 is connected with sawing motor 115 by belt or chain, and saw blade lifting cylinder 117 is then arranged on the saw blade. The lower part of the sheet 116, and is connected with the saw blade 116 by the piston, the pressing block 114 is arranged on the top of the frame 112, and it is connected with the pressing cylinder 113 fixed on both sides outside the frame 112, and the pressing block 114 is a wooden material , and the front side of the worktable surface of the frame 112 is also connected with a fixed-length pull rod 121 for the fixed length of the plate, and a limit stop 122 is also arranged on the fixed-length pull rod 121. position to adjust the distance between the limit block 122 and the saw blade 116, and then meet the requirements of the group blanks with different specifications and lengths.

Figure 2 is a schematic diagram of the production process of the new laminated veneer lumber.

As shown in Figure 2: the production process of the present invention is:

Firstly, the veneer of fixed size is dried and milled into inclined planes at both longitudinal ends of the veneer by an abrasive belt bevel milling machine 1, ready for use. (The length of the veneer must be dimensional controlled, and generally take a negative tolerance)

Then glue is applied to the surface of the veneer by means of the gluing machine 4, wherein the uppermost veneer does not need to be glued.

Next is the billet forming process, the walking trolley 15 moves from right to left, the starting position is at the 0 position on the right, at this time, put the glued veneer on the backer 16 of the trolley and place the first veneer (glue side up) , press the control switch, the backer 16 rises under the action of the cylinder, and then under the action of the motor, the walking trolley 15 moves forward (that is, to the left) by a given displacement L, the cylinder moves, and the backer 16 presses down, at this time Place the second veneer, press the control switch to repeat the above actions, and complete the paving of the second veneer, and so on to realize the infinite lengthening of the veneer assembly, wherein the walking trolley 15 moves forward (i.e. to the left) ) to move a given displacement L can be adjusted according to the needs of customers. Generally speaking, the size of L is related to the total height and number of layers of LVL, so as to ensure that the joint distance between all layers of LVL is the same no matter where it is, until it reaches the required thickness. After the veneer layers are counted, the backer 16 returns to the starting position, and the veneer on the blank forming platform 13 advances one veneer position at the same time.

The subsequent process after blank assembly is cold pressing. When the veneer on the front blank assembly platform 13 advances to a single plate position, the veneer pre-pressing machine 6 is in the upper starting position; and when in the blank assembly process, the veneer The pre-pressing machine 6 presses down. Since the length of the veneer pre-pressing machine 6 is greater than twice the length of the veneer, during the billet assembly process, all the assembled veneers can be cold-pressed more than twice.

Finally, according to the length specifications of the required LVL lumber, the mobile cut-off saw 11 cuts and saws a large area of a certain length into a board, that is, firstly, according to the length L of the cut-off group blank board, adjust the fixed-length tie rod 121 The distance of the limit stop 122 of the limit stop 122, so that the distance between it and the saw blade 116 is the length L required by the group of blanks, and then, when the front end of the group of blanks moves to the position of the limit stop 122, if this When the blank group is still moving (that is, the length of a veneer is not over yet), then the blank group presses the limit block 122, which drives the mobile cut-off saw 11 to move forward as a whole, that is, in the blank group Under the action of the thrust, the rollers on the frame 112 move forward on the track 111 on the ground until the base plate stops moving. Then, the saw blade lifting cylinder 117 is pneumatically driven to push the saw blade 116 to the cutting position, and at the same time saw The motor 115 is also started, and begins to saw along with the group of blanks, and at this time, the travel motor 119 is also started, which drives the sawing mechanism to move forward as a whole through the saw blade travel mechanism 118, and then realizes that the saw blade 116 is aligned with the entire group of blanks. Horizontal sawing, after the sawing is completed, the mobile cut-off saw 11 retreats to the original position.

The above-mentioned sawn boards enter the conveying roller 12, through the conveying roller 12, the cold-pressed large-area sheets are transferred to hot pressing, the side materials on both sides are removed, sanding treatment, side sanding and packaging, etc.

The above has disclosed the present invention with preferred embodiments, but it is not intended to limit the present invention, and all technical solutions obtained by adopting equivalent replacement or equivalent transformation methods fall within the protection scope of the present invention.

Claims (6)

1. the complete production unit of a laminated veneer lumber; Comprise that the abrasive band tiltedly mills machine, glue spreader, veneer preformer, storing platform and multi-daylight press; It is characterized in that; Between glue spreader and veneer preformer, also be sequentially set with scalable feeder and numerical control location lay-up machine, between veneer preformer and storing platform, then be sequentially set with portable amputating saw and carry Kun, wherein; Machine, glue spreader, scalable feeder, numerical control location lay-up machine, veneer preformer, portable amputating saw, conveying Kun are tiltedly milled in the abrasive band, direct motion is connected the storing platform with multi-daylight press, forms a production line through operating platform.

2. the complete production unit of laminated veneer lumber according to claim 1; It is characterized in that; Described scalable feeder comprises the expansion plate of a plurality of sockets, and an end of scalable feeder is connected with the discharging opening of glue spreader, and the other end then is connected with the assembly platform of numerical control location lay-up machine.

3. the complete production unit of laminated veneer lumber according to claim 1; It is characterized in that described numerical control location lay-up machine comprises assembly platform, the conveyer belt through carrying Electric Machine Control, through its backer who pumps of cylinder control, walking dolly and gauge tap through Electric Machine Control, wherein; Conveyer belt is arranged on the assembly platform; The backer is arranged on the top of assembly platform, and it is connected with walking dolly, and the bottom of walking dolly is provided with roller; Roller cooperates with the closed slide that is arranged on both sides, assembly platform front and back, and above-mentioned conveyer belt, walking dolly and backer are connected with gauge tap through the control system.

4. the complete production unit of laminated veneer lumber according to claim 1 is characterized in that, described veneer preformer is a discontinuous veneer preformer, and the length of its precompressed is greater than the length of two veneers.

5. the complete production unit of laminated veneer lumber according to claim 1; It is characterized in that; Roller, saw cutting mechanism, saw blade walking mechanism, saw blade movable motor, compact heap, positive stop and fixed length pull bar that described portable amputating saw comprises frame, is arranged on the frame bottom and cooperates with ground track; Wherein, saw cutting mechanism is arranged on the inner side of frame, and it is connected with the saw blade movable motor that is arranged on the inner opposite side of frame through the saw blade walking mechanism; Compact heap is arranged on the top of frame; It is connected with the clamping cylinder that is fixed on the frame both sides external, also is connected with the fixed length pull bar that is used for the sheet material fixed length in the front side of the work top of frame, also is provided with positive stop on the fixed length pull bar.

6. the complete production unit of laminated veneer lumber according to claim 5; It is characterized in that; Described saw cutting mechanism comprises saw blade, sawing motor and saw blade lift cylinder, and wherein, saw blade is connected through belt or chain with the sawing motor; The saw blade lift cylinder then is arranged on the bottom of saw blade, and is connected with saw blade through piston.

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