CN108501158A - A kind of low failure is convenient for the timber rotating-cutting equipment of cut-out - Google Patents

Abstract

The present invention discloses a kind of low failure convenient for the timber rotating-cutting equipment of cut-out, including rack, rotary cutting mechanism, driving mechanism and disconnecting device, the rotary cutting mechanism has the first friction roller, the second friction roller and third friction roller being rotatably dispose in rack and for rolling timber, first friction roller and the second friction roller are in rotating in an anti-clockwise direction, and the third friction roller is in rotationally clockwise；First friction roller, the second friction roller and third friction roller are all made of ratchet-type friction roller, the ratchet-type friction roller is to be composed of along cylinder axis several pawl portions, each pawl portion is made of major radius face, short radius face and at least two sides, and the end in the major radius face is gradually transitions the end in short radius face along at least two side；The present invention has the characteristics that timber rotary-cut failure rate is low, automated production ability is strong and product stability is good.

Description

A Wood Rotary Cutting Equipment with Low Trouble and Easy Cutting

The patent application of the present invention is a divisional application of Chinese patent application number 201710366702.5. The original application number is 201710366702.5, and the application date is May 23, 2017. The invention name is a low-failure automatic wood rotary cutting equipment.

technical field

The invention relates to the field of wood processing equipment, in particular to a low-failure automatic wood rotary cutting equipment, which has the characteristics of low failure rate of wood rotary cutting, strong automatic production capacity and good product stability.

Background technique

In order to achieve a good decorative effect, the surface of the decorative panel is required to be smooth, flat and free of burrs. Usually, it is necessary to use wood with a larger diameter for processing to achieve the above requirements. At present, there are usually two types of equipment for processing such decorative panels with larger wood, one is a rotary cutting machine with a clamping shaft, and the other is a rotary cutting machine without a clamping shaft. The main difference between the two is that the one with a clamping shaft will The diameter of the remaining wood is larger, the waste of wood is more serious, and the utilization rate of wood is lower.

Wood rotary cutting equipment without a clamp shaft, because it does not have a clamp shaft, it is relatively prone to the problem of wood falling, so the friction requirements for the friction roller are relatively high. The basic idea of the traditional friction roller is that it is cylindrical The surface of the roller body is machined with various patterns using lathes and other equipment, and these patterns are used to increase friction. However, it does not carry out a matching design based on the actual contact between the wood and the roller body and the state of the wood itself during cutting, resulting in a certain possibility of falling.

The inventor has studied the structure of the entire rotary cutting machine for many years, and has conducted in-depth research on the angle to prevent it from falling, the automatic operation of the entire rotary cutting equipment, and the high stability of the sheet product, and then developed this case.

Contents of the invention

The main purpose of the present invention is to provide a low-failure automatic wood rotary cutting equipment, which has the characteristics of low failure rate of wood rotary cutting, strong automatic production capacity and good product stability.

In order to achieve the above object, the solution of the present invention is:

A low-failure automatic wood rotary cutting equipment, including a frame, a rotary cutting mechanism, a driving mechanism and a cutting device, the rotary cutting mechanism has a first friction roller, a second The friction roller and the third friction roller, the first friction roller and the second friction roller rotate counterclockwise, and the third friction roller rotates clockwise;

Wherein, the first friction roller, the second friction roller and the third friction roller all adopt ratchet type friction rollers, and the ratchet type friction rollers are composed of several ratchet parts along the cylinder axis, and each ratchet part is It consists of a long-radius surface, a short-radius surface and at least two sides, the end of the long-radius surface gradually transitions to the end of the short-radius surface along the at least two sides;

The cutting device has a fixed-length measuring mechanism, a cutting knife, an elastic member, and a push-off mechanism. The fixed-length measuring mechanism has a base fixed on the knife rest, a measuring body slidably arranged on the base, and a The stopper at the tail end; one end of the elastic member is fixed on the knife holder, and the other end is fixed on the measuring body to allow the measuring body to reset after cutting. The cutting knife and the measuring body are in the direction of movement relative to the knife holder Keeping synchronously, the cutting knife cuts the thin plate when the thin plate is against the stopper; the pushing mechanism has a lever and a pushing head, the middle part of the lever is formed as a fulcrum, and one end of the lever corresponds to the lower position of the cutting knife and A touch part is formed, and the pusher head is located at the other end of the lever. When the cutting knife is cutting the thin plate, it touches the touch part and drives the pusher head to lift the single thin plate formed by cutting over the stopper.

Further, the ratchet-type friction roller is composed of 14 ratchet parts, and each ratchet part has four sides, and the angle between the side near the long-radius surface and the short-radius surface is the largest and with the short radius The distance between the planes gets closer and gradually becomes smaller.

Further, the wood rotary cutting equipment also includes two sets of blocking columns formed on both sides of the third friction roller, each set of blocking columns includes three blocking columns fixed at the end of the third friction roller, and the angle between the three blocking columns is 120 degrees, the height of the outer surface of each blocking column is higher than the height of the friction surface of the third friction roller, and both the first friction roller and the second friction roller have a return displacement groove formed between the friction surface and the end bearing.

Further, the wood rotary cutting equipment also includes a bottom supporting roller located at the bottom of the first friction roller, the second friction roller and the third friction roller, and the bottom supporting roller is also connected with an elastic adjustment assembly, and the elastic adjustment assembly includes a fixed rod , a rotating rod and a spring connected between the fixed rod and the rotating rod, one end of the rotating rod is connected to the bottom support roller, and the other end is rotatably connected to the fixed rod, and the top of the bottom support roller rubs against the log.

Further, the wood rotary cutting equipment also includes a collection device, which is arranged on the knife frame and has a conveyor belt mechanism, a counting mechanism, a receiving mechanism, a microprocessor, a slide rail, a cut-off seat, several collection bins and a power mechanism, The receiving mechanism has a receiving hard board and a receiving film, the receiving hard board is fixed at the tail of the conveyor belt mechanism, and the receiving film is located between the receiving hard board and the collection bin currently in the receiving state; Undertake the thin slices of the hard board to count and count. The counting mechanism and the power mechanism are connected with the microprocessor. The cut-off seat is used to position the collection bin in the receiving state. Whether the bin is in receiving state.

Further, the cutting device also includes a cutter seat, which is fixedly connected with the measuring body, and a rotating shaft is formed on the cutting knife seat, and the rotating shaft is connected with a first connecting rod at an eccentric position. The first connecting rod is driven and connected with the cutting knife through the second connecting rod, and the cutting knife is limited by the vertical guide to move up and down relative to the cutting knife seat.

Further, a receiving step is also formed on the tool holder, and the cutting device also includes at least two elastic supporting seats arranged on the receiving step, each elastic supporting seat has a spring and a supporting part at the top of the spring, and the supporting part Butt against the bottom of the sheet.

After adopting said structure, the beneficial effects of the present invention are:

One, the present invention allows the first friction roller, the second friction roller and the third friction roller to all adopt the ratchet type friction roller, utilize the long radius surface and the short radius surface to form the drop, and then obtain the ratchet type structure; Humidity and uniform elasticity, when the ratchet part is actually in contact with the wood, a long-radius surface embedding and side contact are formed, forming a three-dimensional conflict, and the wood is firmly controlled between the first friction roller and the second friction roller. Between the roller and the third friction roller until the minimum diameter cannot be cut.

2. For the cutting device of the present invention, when the thin plate moves to the position of the cutting device, the thin plate will continue to move until it touches the stopper. At this time, since the thin plate will continue to move, the thin plate will move together with the stopper and the measuring body. Translation occurs on the base. At this time, when the thin plate is against the stopper, the cutting knife will receive the command and start cutting. Since the cutting knife also keeps moving synchronously with the measuring body during this process, its cutting of the thin plate It can ensure the characteristic of fixed length; at the same time when the cutting knife is finished cutting, due to the design of the ejector mechanism, the ejector head will move upwards, and then the cut single sheet will be tilted over the stopper, so that the single sheet can be moved from The separation of the cutting device; then under the action of the elastic member, the measuring body resets for the next cycle.

3. The present invention further forms a return displacement groove between the friction surface and the end bearing of the first friction roller and the second friction roller, and then forms a blocking post on the third friction roller, so that the blocking post and the friction surface The distance between them is minimized, which improves the rotary cutting effect of the whole rotary cutting machine to the greatest extent. The present invention utilizes the cooperation relationship between the rotary transfer slot and the three blocking columns to prevent the wood from slipping out from the two sides of the three friction rollers, ensure that the wood is always kept between the three friction rollers, and reduce the failure of the equipment rate, so that the equipment has been in high-efficiency production.

4. The present invention further utilizes the counting mechanism to count the sheets transported outward from the conveyor belt mechanism. When the counting mechanism reaches a threshold value, the microprocessor will receive the instruction, and then control the power mechanism to perform a stepping action. Switch the collection bin to the next one, specifically let the collection bin slide on the slide rail, and automatically let the next collection bin be in the range of accepting the film; the present invention allows the sheet to be in the same area by setting the accepting hard board and accepting the film. During the process of collecting the bin, the orderliness between the upper and lower sheets will not be affected due to the continuous increase of the sheet height. Compared with the existing counting method, the invention can automatically collect flakes, and has the characteristics of simple structure and high collection quality.

Description of drawings

Fig. 1 is a three-dimensional structural schematic diagram of a low-failure automatic wood rotary cutting equipment of the present invention.

Fig. 2 is a schematic diagram of the transmission of wood by the first friction roller, the second friction roller and the third friction roller.

Fig. 3 is a structural schematic diagram of a ratchet part.

Fig. 4 is a schematic diagram of part of the cutting device in the present invention.

FIG. 5 is an enlarged schematic view of FIG. 4 .

Fig. 6 is a schematic diagram of cooperation between the third friction roller and the second friction roller.

Fig. 7 and Fig. 8 are schematic diagrams of the configuration of the bottom support roller for the wood rotary cutting equipment of the present invention.

Fig. 9 is a schematic structural view of the collecting device in the present invention.

Fig. 10 is a structural schematic diagram of the wood supply mechanism.

In the picture:

Rack-1; knife bed-2; rotary cutter-21;

Blocking block-22; first friction roller-31; second friction roller-32;

The third friction roller-33; friction surface-34; end bearing-35; rotary transfer slot-36;

Blocking column-37; outer surface-371; bottom support roller-38;

Elastic adjustment assembly-39; Fixed rod-391; Rotating rod-392;

Spring-393; ratchet type friction roller-4; ratchet part-41;

Long radius face-411; Short radius face-412; Side face-413;

Cylindrical axis-S; drive mechanism-5;

Cut-off device - 6;

Fixed-length measuring mechanism-61; base-611; measuring body-612;

Block-613; Cutter-62; Elastic part-63;

Pushing mechanism-64; Lever-641; Pushing head-642;

Actuating part-643; cutter seat-65; rotating shaft-651;

First link-652; Second link-653; Vertical guide-654;

Elastic support seat-66; spring-661; supporting part-662; receiving step-67;

Collection device-7; Conveyor belt mechanism-71;

Counting mechanism-72; undertaking mechanism-73; undertaking hard board-731;

Undertake film-732; microprocessor-74; slide rail-75;

cut-off block-76; collection bin-77;

Timber supply mechanism-8; first conveying mechanism-81; second conveying mechanism-82;

first sensor-83; cross-84; rotation axis-85.

Detailed ways

In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific examples.

As shown in Figures 1 to 3, a low-failure fully automatic wood rotary cutting device related to the present invention includes a frame 1, a rotary cutting mechanism, a driving mechanism 5 and a cutting device 6, and the rotary cutting mechanism has a rotating device arranged on The first friction roller 31, the second friction roller 32 and the third friction roller 33 for rolling wood on the frame 1, the first friction roller 31 and the second friction roller 32 rotate counterclockwise, the third friction roller The roller 33 rotates in a clockwise direction. The above-mentioned technical features are consistent with the existing rotary cutting machine, and the detailed technical features thereof will not be elaborated any more.

As shown in Figures 2 and 3, the improvement of the present invention is that the first friction roller 31, the second friction roller 32 and the third friction roller 33 all adopt a ratchet type friction roller 4, and the ratchet type friction roller 4 is It is composed of several ratchet parts 41 along the cylinder axis S. Each ratchet part 41 is composed of a long radius surface 411, a short radius surface 412 and at least two side surfaces 413. The end of the long radius surface 411 is along the The at least two side surfaces 413 gradually transition to the end of the short radius surface 412 .

In this embodiment, the ratchet type friction roller 4 is composed of 14 ratchet parts 41, and each ratchet part 41 has four sides 413, the side near the long radius surface 411 and the short radius surface 412 The included angle is the largest and gradually decreases as the distance from the short-radius surface 412 becomes closer. As shown in Fig. 3, β1 to β3 gradually become smaller.

In this way, the low-failure automatic wood rotary cutting equipment involved in the present invention uses ratchet-type friction rollers for the first friction roller, the second friction roller and the third friction roller, and uses the long-radius surface and the short-radius surface to form a drop , and then a ratchet structure is obtained. The present invention utilizes that the wood still has a certain degree of humidity and uniform elasticity, and when the ratchet part is actually in contact with the wood, it forms a way of long-radius surface embedding and side contact, forming a three-dimensional conflict, and firmly controlling the wood at the first position. Between the first friction roller, the second friction roller and the third friction roller until the minimum diameter cannot be cut.

As shown in Figure 1, the rotary cutting mechanism also includes a knife bed 2, a rotary cutter 21 and a blocking block 22, the rotary cutting knife 21, the third friction roller 33 and the blocking block 22 are all arranged on the knife bed 2 and The knife bed 2 moves laterally, and the blocking block 22 has a horizontal overlapping area with the lower half of the log when the log is in the process of the largest diameter to the smallest diameter. The present invention further sets the blocking block 22, and the blocking block 22 always moves synchronously with the knife bed 2, which allows the log to form blocks on both sides of the log during the entire cutting process, preventing accidental falling.

As shown in Fig. 4 and Fig. 5, the cutting device 6 includes a fixed-length measuring mechanism 61, a cutting knife 62, an elastic member 63 and a pushing mechanism 64, and the fixed-length measuring mechanism 61 has a base 611 fixed on the knife rest , a measuring body 612 slidably arranged on the base 611 and a stopper 613 formed at the tail end of the measuring body 612 .

One end of the elastic member 63 is fixed on the knife rest, and the other end is fixed on the measuring body 612 so that the measuring body 612 can be reset after cutting, and the cutting knife 62 and the measuring body 612 are kept in the same direction relative to the knife rest. Synchronously, the cutting knife 62 cuts the thin plate when the thin plate is against the stopper 613 .

The ejecting mechanism 64 has a lever 641 and an ejecting head 642. The middle part of the lever 641 is formed as a fulcrum. One end of the lever 641 corresponds to the lower part of the cutting knife 62 and forms a contact portion 643. The ejecting head 642 is located at the other end of the lever 641. , the cutting knife 62 collides with the actuating portion 643 when cutting the thin plate and drives the ejector head 642 to lift the single thin plate formed by cutting over the stopper 613 .

In this way, when the cutting device moves to the position of the cutting device, the thin plate will continue to move until it touches the block 613. At this time, because the thin plate will continue to move, the thin plate will bring the stop 613 and the measuring body 612 together. Translation occurs on the base 611. At this time, the cutting knife 62 will receive an instruction when the thin plate is against the stopper 613, and start cutting. Since the cutting knife 62 also keeps moving synchronously with the measuring body 612 during this process, its The cutting of the thin plate can ensure the characteristic of fixed length. When the cutting knife 62 is cut, due to the design of the ejector mechanism 64, the ejector head 642 will move upwards, and then the cut sheet will be tilted over the stopper 613, so that the sheet can be lifted from the cutting device. Separation; then under the action of the elastic member, the measuring body 612 is reset for the next cycle.

As shown in Figure 5, the cutting device also includes a cutter seat 65, which is fixedly connected with the measuring body 612, and a rotating shaft 651 is formed on the cutting seat 65, and the rotating shaft 651 is eccentric The position rotation is connected with the first connecting rod 652, and the first connecting rod 652 is driven and connected with the cutting knife 62 through the second connecting rod 653. An up and down motion occurs.

As shown in Fig. 4 and Fig. 5, a receiving step 67 is also formed on the knife rest, and the cutting device also includes at least two elastic supporting seats 66 arranged on the receiving step 67, each elastic supporting seat 66 has a spring 661 and The supporting portion 662 located at the top of the spring 661 is against the bottom of the thin plate. Using this can give a certain fine-tuning buffer when the sheet is supplied too much or too little.

As shown in FIG. 6 , the further improvement of the present invention is that: the wood rotary cutting equipment further includes two sets of blocking columns 37 formed on both sides of the third friction roller 33 . Each set of blocking columns 37 includes three blocking columns 37 fixed at the end of the third friction roller 333, the angle between the three blocking columns 37 is 120 degrees, and the height of the outer surface 371 of each blocking column 37 is higher than that of the third friction roller The height of the friction surface 34 of 33, both the first friction roller 31 and the second friction roller 32 have a rotary displacement groove 36 formed between the friction surface 34 and the end bearing 35 .

In this way, the present invention forms the revolving displacement groove 36 between the friction surface 34 and the end bearing 35 of the first friction roller 31 and the second friction roller 32, and then forms a blocking post 37 on the third friction roller 33, so The distance between the blocking column 37 and the friction surface 34 is minimized, and the rotary cutting effect of the entire rotary cutting machine is improved to the greatest extent. Utilizing the cooperative relationship between the rotary displacement groove 36 and the three blocking columns 37, the present invention prevents the wood from slipping out from the two sides of the three friction rollers, ensures that the wood is always kept between the three friction rollers, and reduces equipment The failure rate keeps the equipment in high-efficiency production.

As shown in Figures 7 and 8, the wood rotary cutting equipment also includes a bottom support roller 38 located at the bottom of the first friction roller 31, the second friction roller 32 and the third friction roller 33, and the bottom support roller is also connected with The elastic adjustment assembly 39, the elastic adjustment assembly 39 includes a fixed rod 391, a rotating rod 392 and a spring 393 connected between the fixed rod 391 and the rotating rod 392, one end of the rotating rod 392 is connected with the bottom support roller 38, and the other end can be Rotation is connected on the fixed rod 391, and the top of the bottom support 39 rollers rubs against the log.

As shown in Figure 9, this collecting device 7 has conveyor belt mechanism 71, counting mechanism 72, receiving mechanism 73, microprocessor 74, slide rail 75, cut-off seat 76, several collecting bins 77 and power mechanism, this receiving mechanism 73 It has a receiving hard plate 731 and a receiving film 732. The receiving hard plate 731 is fixed at the tail of the conveyor belt mechanism 71, and the receiving film 732 is located between the receiving hard plate 731 and the collection bin 77 currently in the receiving state.

Specifically, the power source of the power mechanism is a stepping motor, and the counting mechanism 72 is a transmitting unit and a receiving unit arranged on both sides of the conveyor belt mechanism 71 .

The counting mechanism 72 is used to count and count the sheets input to the receiving hard plate 731, the counting mechanism 72 and the power mechanism are all connected to the microprocessor 74, the cut-off seat 76 is used to position the collecting bin 77 in the receiving state, The power mechanism drives the collection bin 77 to slide on the slide rail 75 to switch whether the collection bin 77 is in the receiving state.

In this way, the present invention utilizes the counting mechanism 72 to count the sheets conveyed outwards from the conveyor belt mechanism 71. When the counting mechanism 72 accumulates to a threshold value, the microprocessor 74 will receive an instruction and then control the power mechanism to perform a step. Carry out an action, switch its collection bin 77 to the next one, specifically allow the collection bin 77 to slide on the slide rail 75, and allow the next collection bin 77 to be in the scope of accepting the film 732 automatically.

In the present invention, by setting the receiving hard plate 731 and the receiving film 732, the order of the upper and lower sheets will not be affected by the continuous increase of the height of the sheets during the process of the sheets in the same collection bin 77. Compared with the existing counting method, the invention can automatically collect flakes, and has the characteristics of simple structure and high collection quality.

As shown in Figure 10, in order to realize the automatic feeding of wood rotary cutting equipment, it also includes a wood supply mechanism 8 with a first conveying mechanism 81, a second conveying mechanism 82, a first sensor 83 and a cross 84, the first A conveying mechanism 81 and a second conveying mechanism 82 are arranged horizontally, and the second conveying mechanism 82 is used to accept the timber conveyed by the first conveying mechanism 81. The cross 84 is located between the first conveying mechanism 81 and the second conveying mechanism 82 Between, the cross 84 has a rotating shaft 85, which is driven by a stepping motor to rotate step by step, and the first sensor senses whether there is wood to be transported under the cross 84. Every time the wood rotary cutting equipment completes the rotary cutting of wood, it will send a command to make the cross rotate a step to realize automatic feeding.

As a preferred solution, the low-fault wood rotary cutter also includes an angle adjustment device arranged between the knife bed and the rotary cutter. The rotary cutter is provided with a pivot point near the knife edge. The angle adjustment device is based on The current diameter of the wood changes the angle of the rotary cutter. Specifically, in order to realize the uniform thickness of the slices cut by the rotary cutter, mathematical modeling can be used to obtain the curve of the rotary cutter while the knife bed and the rotary cutter move synchronously in the horizontal direction. Change, and then directly use the modeling model to issue instructions to drive the angle adjustment device to change the angle of the rotary cutter.

The above-mentioned embodiments and drawings do not limit the form and style of the product of the present invention, and any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of the present invention.

Claims (2)

1. a kind of low failure is convenient for the timber rotating-cutting equipment of cut-out, including rack, rotary cutting mechanism, driving mechanism and cut-out dress It sets, the rotary cutting mechanism, which has, to be rotatably dispose in rack and for rolling the first friction roller of timber, the second friction roller and the In rotating in an anti-clockwise direction, which turns in clockwise direction for three friction rollers, first friction roller and the second friction roller It is dynamic；

It is characterized in that, first friction roller, the second friction roller and third friction roller are all made of ratchet-type friction roller, the ratchet Formula friction roller is composed of 14 pawl portions, each pawl portion tool there are four side, close to major radius face side side with The angle in short radius face is maximum and is tapered into becoming close at a distance from short radius face；

There is the disconnecting device fixed length measuring mechanism, cutting knife, elastic component and penetrating mechanism, the fixed length measuring mechanism to have solid The pedestal that is scheduled on knife rest is slidably arranged the measurement body on pedestal and is formed in the block for measuring body tail end；The bullet Property part one end be fixed on knife rest, the other end is fixed on to measure measures body reset after cut on body to allow, the cutting knife with It measures body to keep synchronizing in the direction of motion relative to knife rest, which cuts out thin plate when thin plate supports block It cuts；The penetrating mechanism has lever and ejection head, is formed as fulcrum in the middle part of the lever, which corresponds to cutting knife lower part Position simultaneously forms touch part, which is then located at the other end of lever, which contradicts when being cut to thin plate should Touch part simultaneously drives ejection head that block is crossed in the single sheet tilting that cutting is formed；

The disconnecting device further includes cutter tool apron, which is fixedly linked with body is measured, and is also formed on the cutter tool apron Rotation axis, the rotation axis are rotatably connected to first connecting rod in eccentric position, and the first connecting rod is by second connecting rod and cutting knife Driving is connected, which is limited by the portion of being vertically directed and moved up and down relative to cutter tool apron.

2. a kind of low failure as described in claim 1 is convenient for the timber rotating-cutting equipment of cut-out, which is characterized in that on the knife rest also It is formed with undertaking step, which further includes at least two elastic supporting seats being arranged on accepting step, each elasticity Support base has spring and the supporting part positioned at spring top, which supports below thin plate.