WO2022017495A1 - Rotary cutting machine using automatic stepless shifting of cam to change rotary cutting veneer thickness - Google Patents

Abstract

A rotary cutting machine using automatic stepless shifting of a cam to change rotary cutting veneer thickness. A double-row roller assembly, a double-row roller feeding assembly, and a cutter body base (5) are installed on a rack. The double-row roller feeding assembly is used for driving the double-row roller assembly to move towards or away from the cutter body base (5). A support arm (8) is hinged by means of a support shaft (7) to the cutter body base (5) at an end near the double-row roller assembly. A cam assembly is provided on the cutter body base (5) at an end away from the double-row roller assembly. The cam assembly drives the support arm (8) to rotate. A single-row roller press assembly is provided on the support arm (8). A locking adjustment assembly adjusts the position of the single-row roller press assembly on the support arm (8). A rotary cutter (6) is mounted on the upper portion of the end of the cutter body base (5) near the double-row roller assembly. The double-row roller assembly, the double-row roller feeding assembly, the single-row roller press assembly and the cam assembly are all connected to a controller. The present device achieves intelligent, precise, and automatic change of any rotary cutting thickness, and the cutter height and cutter gap are locked by one-time benchmark locking, thereby saving labor and time.

Description

Rotary cutting machine using automatic stepless shifting of cam to change the thickness of rotary cutting veneer technical field

The invention relates to the technical field of wood processing, in particular to a rotary cutting machine which utilizes automatic stepless shifting of a cam to change the thickness of a rotary cutting veneer.

Background technique

The existing rotary cutting machines on the market have two adjustment methods for changing the thickness of rotary cutting: the first is to use manual manual adjustment. Specifically, when setting a certain thickness of veneer veneer, manual twisting Adjust the screw and pull the single-roller gauge back and forth to move it back and forth, adjust the gap distance between the rotary cutter and the single-roller gauge, and then adjust the height of the blade to an appropriate level. This process skilled worker conditioning takes about 20-30 minutes. In the process of rotary cutting, the rotary cutter is often used, and the blade is blunt and not sharp. It needs to be replaced with a rotary cutter with a sharpened edge. Every time the knife is changed, the above manual debugging process needs to be repeated, and debugging requires experience. Skilled mechanic is time-consuming and labor-intensive, and the mechanical structure of this debugging accounts for more than 98% of the rotary cutting machine. The second is to use the numerical control permanent magnet servo mechanism for debugging. Specifically, when the veneer veneer of a certain thickness is peeled, the hydraulic locking device of the single-roller pressure gauge seat is manually controlled by the electric appliance to release the state, and then manually controlled. Manually measure the gap distance between the rotary cutter and the single-roller pressure gauge, then calculate the amount that needs to be adjusted back and forth, input the adjustment signal to the permanent magnet servo motor, and measure the actual gap after input. The pressing device locks the single-roller gauge seat. This method adopts hydraulic and electrical control, and the time is much shorter than the original. Generally, the adjustment is completed within 5-10 minutes. The height of the knife needs to be adjusted manually. There are many debugging links, unstable, and the equipment has been used for a long time. The wear data from time to time is unstable, and manual measurement is required every time, which cannot be fully automatic and accurate.

Because the above two methods, whether it is manual manual or electrical control, use the direction of translation to adjust the gap distance between the rotary cutter and the single roller by rotating the screw nut back and forth, because in the work of rotary cutting logs , Replace the rotary cutter and replace the thickness of the rotary veneer veneer more frequently, so the adjustment of the wear and tear of the screw nut is inseparable from manual manual measurement and debugging. On the other hand, when the veneer veneer of different thickness is peeled, the height of the rotary cutter is different. When the veneer is thin, the height of the blade is higher than the horizontal center of the log. The horizontal center line is lower, so that when changing veneer veneers of different thicknesses, the height of the rotary cutter should be properly adjusted. The adjustment process is complicated, time-consuming and laborious, and personnel with experience and skills in this area are scarce.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the present invention provides a rotary cutting machine that uses the automatic stepless shifting of the cam to change the thickness of the rotary cutting veneer, which realizes the intelligent and precise automatic conversion of any rotary cutting thickness, and the knife height and the knife seam are locked in one time reference. , saving labor and time.

For achieving the above object, the present invention provides the following scheme:

The present invention provides a rotary cutting machine which utilizes automatic stepless shifting of cams to change the thickness of rotary cutting veneer. A single-row roller pressure gauge assembly, a cam assembly, a locking adjustment assembly and a controller, the double-row roller assembly, the double-row roller feeding assembly and the knife body seat are all mounted on the frame, and the One side of the knife body seat is provided with the double-row roller assembly, the double-row roller feeding assembly is used to drive the double-row roller assembly to move toward or away from the knife body seat, and the support arm is hinged to the knife body through a support shaft. The cutter body seat is close to one end of the double-row roller assembly, and the cam assembly is provided at one end of the cutter body seat away from the double-row roller assembly, and the cam assembly is used to drive the support arm to rotate, so The single-row roller pressure gauge assembly is arranged on the support arm, the locking adjustment assembly is used to adjust the position of the single-row roller pressure gauge assembly on the support arm, and the cutter body seat is close to the double-row roller pressure gauge assembly. A rotary cutter is installed on the upper part of one end of the row roller assembly, and the double row roller assembly, the double row roller feeding assembly, the single row roller pressure gauge assembly and the cam assembly are all connected with the controller.

Preferably, the cam assembly includes a bracket, a cam, a camshaft and a cam motor, the bracket is fixed on the cutter body seat, the bracket is located under the support arm, and the camshaft is rotatably mounted on the bracket The cam is fixedly sleeved on the camshaft, the cam motor is used to drive the camshaft to rotate, the cam motor is fixed on the frame, and the cam motor is connected to the controller .

Preferably, one end of the support arm close to the cam is provided with a cylindrical protrusion, the cylindrical protrusion is vertically arranged on one side of the support arm, and the cylindrical protrusion is in contact with the cam.

Preferably, the single-row roller press assembly includes a single-row roller press seat, a single-row roller press and a single-row roller motor, the single-row roller press seat is disposed on the support arm, and the single-row roller motor It is fixed on the single-row roller pressure gauge seat, and the single-row roller pressure gauge is installed at one end of the single-row roller pressure gauge seat close to the rotary cutter, and the single-row roller pressure gauge is located in the rotary cutter. Above the knife, the rotary cutter is inclined from bottom to top toward the double-row roller assembly. The single-row roller motor is used to drive the single-row roller pressure gauge. The single-row roller motor is connected to the controller. connect.

Preferably, the locking adjustment assembly comprises a screw rod, a screw rod mounting seat, two locking nuts and a plurality of pressing bolts, the screw rod mounting seat is fixed on the support arm, and the screw rod mounting seat is arranged away from the At one end of the single-row roller pressure gauge, the screw rod is threadedly installed in the screw rod mounting seat and the single-row roller pressure gauge seat in sequence, and the two locking nuts installed on the screw rod are respectively arranged in the The two sides of the screw mounting seat and the two sides of the single-row roller pressure gauge seat are respectively installed with a plurality of the compression bolts, and the compression bolts are used to lock the single-row roller pressure gauge seat to the on the support arm.

Preferably, the double-row roller assembly includes a double-row roller seat, a double-row roller and a double-row roller motor, the double-row roller seat is arranged on the frame, and the double-row roller motor is fixed to the double-row roller motor On the roller seat, the double-row roller is installed at one end of the double-row roller seat close to the rotary cutter, and the double-row roller motor is used to drive the double-row roller, and the double-row roller motor is connected with the Controller connection.

Preferably, the double-row roller feeding assembly includes a feeding screw, a screw nut and a screw motor, and both ends of the feeding screw are respectively mounted on the frame through a screw seat, and the The lead screw nut is installed on the feed screw, and the lead screw nut is fixedly connected to one side of the double-row roller base. The lead screw motor is used to drive the feed screw, and the lead screw is used to drive the feed screw. A motor is connected to the controller.

The present invention has achieved the following technical effects with respect to the prior art:

The invention provides a rotary cutting machine for rotary cutting veneer thickness by using cam automatic stepless shifting. The support arm is hinged on the cutter body seat, and the single-row roller pressure gauge assembly is installed on the support arm. When the cam assembly drives the support arm to contact When the end moves upward, the extrusion point between the single-row roller scale assembly and the log moves obliquely downward; on the contrary, when the cam assembly drives the contact end of the support arm to move downward, the extrusion point between the single-row roller scale assembly and the log moves obliquely upward. move. It can be seen that the height of the single-row roller pressure gauge assembly in the present invention is adjustable, so it is not necessary to adjust the height of the rotary cutter during rotary cutting of veneer veneers of different heights, that is, the reference knife height and the knife seam are determined at one time. After the adjustment, the single-row roller scale assembly and the support arm can be tightened and locked, and there is no need to adjust the rotary cutting thickness. In this way, the knife height and knife seam of the rotary cutter are stable, and the veneer veneer cut out by rotary cutting is stable. Uniform, high precision and stable. The controller can realize intelligent automatic processing by controlling the cam assembly and the double-row roller feeding assembly, and the thickness can be changed arbitrarily during the rotary cutting process, making full use of wood, greatly improving economic and social benefits, and enhancing my country's wood International competitiveness of products.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of a rotary cutting machine that uses cam automatic stepless shifting to change the thickness of a rotary cutting veneer provided by the present invention.

Description of reference numerals: 1. Feeding screw; 2. Double-row roller seat; 3. Double-row roller motor; 4. Double-row roller; 5. Knife body seat; 6. Rotary cutter; 7. Support shaft; 8 , support arm; 9, single row roller pressure gauge seat; 10, single row roller pressure gauge; 11, single row roller pressure gauge; 12, screw mounting seat; 13, screw rod; 14, locking nut; 15, pressing bolt; 16, bracket; 17, camshaft; 18, cam; 19, cylindrical protrusion; 20, log.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The purpose of the present invention is to provide a rotary cutting machine that utilizes the automatic stepless shifting of the cam to change the thickness of rotary cutting veneer, realizes intelligent and precise automatic conversion of any rotary cutting thickness, the knife height and the knife seam are locked in one-time reference, saving labor and time.

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1 , this embodiment provides a rotary cutting machine that uses cam automatic stepless shifting to change the thickness of rotary cutting veneer, including a frame, a double-row roller assembly, a double-row roller feeding assembly, and a knife body seat 5 , rotary cutter 6, support arm 8, single-row roller pressure gauge assembly, cam assembly, locking adjustment assembly and controller, double-row roller assembly, double-row roller feeding assembly and knife body seat 5 are installed on the frame , a double row roller assembly is provided on one side of the knife body seat 5, and the double row roller feeding assembly is used to drive the double row roller assembly to move toward or away from the knife body seat 5, and the support arm 8 is hinged to the knife body seat 5 through the support shaft 7. One end of the double-row roller assembly, and one end of the knife body seat 5 away from the double-row roller assembly is provided with a cam assembly, the cam assembly is used to drive the support arm 8 to rotate, the single-row roller pressure gauge assembly is arranged on the support arm 8, and the locking adjustment assembly It is used to adjust the position of the single-row roller pressure gauge assembly on the support arm 8. A rotary cutter 6 is installed on the upper part of the knife body base 5 near one end of the double-row roller assembly. The double-row roller assembly and the double-row roller feeding assembly Both the pressure gauge assembly and the cam assembly are connected to the controller.

Specifically, the cam assembly includes a bracket 16, a cam 18, a cam shaft 17 and a cam motor. The bracket 16 is fixed on the cutter body base 5, the bracket 16 is located under the support arm 8, the cam shaft 17 is rotatably mounted on the bracket 16, and the cam 18 is fixed It is sleeved on the camshaft 17, the cam motor is used to drive the camshaft 17 to rotate, the cam motor is fixed on the frame, and the cam motor is connected with the controller. The controller controls the rotation of the cam 18 to realize the support arm 8 with the support shaft 7 as the fulcrum turn.

In this specific embodiment, the end of the support arm 8 close to the cam 18 is provided with a cylindrical protrusion 19 .

Specifically, the single-row roller pressure gauge assembly includes a single-row roller pressure gauge base 9 , a single-row roller pressure gauge 11 and a single-row roller pressure gauge 10 . It is fixed on the single-row roller pressure gauge base 9, the end of the single-row roller pressure gauge base 9 close to the rotary cutter 6 is installed with a single-row roller pressure gauge 11, and the single-row roller pressure gauge 11 is located diagonally above the rotary cutter 6. The knife 6 is inclined from bottom to top toward the double-row roller assembly, the single-row roller motor 10 is used to drive the single-row roller pressure gauge 11, and the single-row roller motor 10 is connected to the controller.

Specifically, the locking adjustment assembly includes a screw rod 13 , a screw rod mounting seat 12 , two locking nuts 14 and a plurality of pressing bolts 15 , the screw rod mounting seat 12 is fixed on the support arm 8 , and the screw rod mounting seat 12 is arranged away from the single row At one end of the roller ruler 11, the screw rod 13 is screwed into the screw rod mounting seat 12 and the single row roller ruler seat 9 in sequence, and the two locking nuts 14 installed on the screw rod 13 are respectively arranged on both sides of the screw rod mounting seat 12. A plurality of pressing bolts 15 are respectively installed on both sides of the row roller press base 9 , and the press bolts 15 are used to lock the single row roller press base 9 on the support arm 8 . When adjusting the position of the single-row roller gauge seat 9, it is necessary to loosen the pressing bolt 15, turn the locking nut 14 to keep it away from the screw mounting seat 12, and adjust the screw 13 so that the single-row roller bar on the single-row roller gauge seat 9 Move the roller ruler 11 back and forth to adjust the gap distance between the rotary cutter 6 and the single row roller ruler 11 , then tighten the pressing bolt 15 to make the single row roller ruler seat 9 fixed, and then screw it to lock The nut 14 is close to the screw mounting seat 12 to lock the screw rod 13 . In this specific embodiment, the rotation direction of the thread of the connecting part of the screw 13 and the screw mounting base 12 is the same as that of the connecting part of the screw 13 and the single-row roller press base 9, and the connecting part of the screw 13 and the screw mounting base 12 is the same. The pitch of the thread is different from the pitch of the thread of the connecting part of the screw 13 and the single-row roller press base 9 , so that the single-row roller press base 9 can move on the support arm 8 when the screw 13 is screwed.

It should be noted that the movement of the single-row roller gauge base 9 is not limited to the above methods. Specifically, one end of the screw 13 can be slidably sleeved in the screw mounting base 12, and the other end can be threadedly mounted on the single-row roller gauge base. In 9, when it is necessary to adjust the position of the single-row roller pressure gauge seat 9, it is necessary to loosen the pressing bolt 15, turn the locking nut 14 to keep it away from the screw mounting seat 12, and move the screw 13 back and forth to make the single-row roller pressure gauge seat. The single-row roller pressure gauge 11 on the 9 moves back and forth to adjust the gap distance between the rotary cutter 6 and the single-row roller pressure gauge 11, and then tighten the pressing bolt 15 to fix the single-row roller pressure gauge seat 9. Then turn the lock nut 14 close to the screw mounting seat 12 to lock the screw rod 13 .

Specifically, the double-row roller assembly includes a double-row roller base 2, a double-row roller 4 and a double-row roller motor 3. The double-row roller base 2 is arranged on the frame, and the double-row roller motor 3 is fixed on the double-row roller base 2. One end of the double-row roller base 2 close to the rotary cutter 6 is installed with a double-row roller 4, the double-row roller motor 3 is used to drive the double-row roller 4, and the double-row roller motor 3 is connected with the controller. In this specific embodiment, the frame is provided with slide rails, and the double-row roller bases 2 are slidably mounted on the slide rails.

Specifically, the double-row roller feeding assembly includes a feeding screw 1, a screw nut and a screw motor. On the feed screw 1, the screw nut is fixedly connected with one side of the double row roller base 2, the screw motor is used to drive the feed screw 1, and the screw motor is connected with the controller, and the controller controls the feed screw 1 by The movement to adjust the feed speed of the double row of rollers 4.

The specific use process is as follows: the support arm 8 is hinged on the cutter body base 5, the single-row roller scale base 9 is installed on the support arm 8 and the two can be fixed as a whole, when the cam 18 rotates, the support shaft 7 is used as a fulcrum to support The arm 8 can drive the single-row roller press base 9 to rotate. Specifically, when the cam 18 rotates in the direction with a larger radius, the end of the single row of rollers 11 moves downward, the extrusion point between the single row of rollers 11 and the log 20 moves obliquely downward, and the rotary cutter 6 and the single row move downward. The gap between the rollers 11 becomes smaller, and the feed speed matched by the calculation program input by the controller is small, and the veneer veneer cut out by rotation is relatively thin and small. On the contrary, when the cam 18 rotates in the direction of small radius, the end of the single-row roller pressure gauge 11 moves upward, the extrusion point between the single-row roller pressure gauge 11 and the log 20 moves obliquely upward, and the rotary cutter 6 and the single-row roller pressure gauge move upward. The gap between the knives between 11 becomes larger, the corresponding feed speed in the calculation program of the controller is larger, and the veneer veneer obtained by rotary cutting is thick. In this specific embodiment, the veneer veneer with a thickness of 0.3-7.5mm has a corresponding starting point of rotation on the cam 18, so that a completely intelligent automatic is realized, and there is no need to adjust any place during use. Rotary cut out veneer veneer of any thickness in the range of 0.3-7.5mm (thickness range can be expanded upon request).

In the structure in which the cam 18 adjusts the support arm 8 and the single-row roller scale base 9, the distance from the support shaft 7 to the cam 18 and the distance from the support shaft 7 to the single-row roller scale 11, the data of the relative positions of up, down, left, and right, and The calculation programs set in the controller are all in one-to-one correspondence. With the different diameters of the logs 20 in the process of rotary cutting, the extruded feed amount of the logs 20, the height of the extrusion point between the single-row roller pressure ruler 11, the rotary cutter 6 and the log 20, and the change of the knife seam are all Accurate changes in unified coordination.

In this embodiment, the height of the single row of rollers 11 is adjustable, so it is not necessary to adjust the height of the rotary cutter 6 during rotary cutting of veneer veneers of different heights, that is, the reference knife height and the knife seam are determined at one time. After the adjustment, the single-row roller ruler seat 9 and the support arm 8 can be tightened and locked, and there is no need to adjust the thickness of the rotary cutting during processing, so that the knife height and the knife gap of the rotary cutter 6 are stable. The veneer veneer obtained by rotary cutting is uniform, high precision and stable. As long as the thickness to be peeled is input in the controller, the calculation program in the controller automatically drives the cam 18 to rotate to a certain position, which realizes intelligent automatic processing, saves labor and time, and improves processing accuracy and work efficiency. In the process of rotary cutting, the thickness is arbitrarily changed, and the high-quality color of a log is rotary cut into relatively high-end skins. Greatly improve the economic and social benefits, and enhance the international competitiveness of my country's wood products.

In this specification, specific examples are used to illustrate the principles and implementations of the present invention, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present invention; There will be changes in the specific implementation manner and application scope of the idea of the invention. In conclusion, the contents of this specification should not be construed as limiting the present invention.

Claims (7)

A rotary cutting machine for changing the thickness of rotary cutting veneer using automatic stepless shifting of cams , a single-row roller pressure gauge assembly, a cam assembly, a locking adjustment assembly and a controller, the double-row roller assembly, the double-row roller feeding assembly and the knife body seat are all installed on the frame, so One side of the knife body seat is provided with the double-row roller assembly, the double-row roller feeding assembly is used to drive the double-row roller assembly to move toward or away from the knife body seat, and the support arm is hinged through a support shaft The cam assembly is provided at one end of the knife body seat close to the double-row roller assembly, and the end of the knife body seat away from the double-row roller assembly, and the cam assembly is used to drive the support arm to rotate, The single-row roller gauge assembly is disposed on the support arm, the locking adjustment assembly is used to adjust the position of the single-row roller gauge assembly on the support arm, and the cutter body seat is close to the A rotary cutter is installed on the upper part of one end of the double-row roller assembly, and the double-row roller assembly, the double-row roller feeding assembly, the single-row roller scale assembly and the cam assembly are all connected to the controller. The rotary cutting machine using cam automatic stepless shifting to change the thickness of rotary cutting veneer according to claim 1, wherein the cam assembly comprises a bracket, a cam, a camshaft and a cam motor, and the bracket is fixed on the On the cutter body seat, the bracket is located under the support arm, the camshaft is rotatably mounted on the bracket, the cam is fixedly sleeved on the camshaft, and the cam motor is used to drive the The camshaft rotates, the cam motor is fixed on the frame, and the cam motor is connected with the controller. The rotary cutting machine for rotary cutting veneer thickness using automatic stepless shifting of cams according to claim 2, wherein a cylindrical protrusion is provided at one end of the support arm close to the cam, and the cylindrical The shaped protrusion is vertically arranged on one side of the support arm, and the cylindrical protrusion is in contact with the cam. The rotary cutting machine for changing the thickness of rotary cutting veneer using cam automatic stepless shifting according to claim 1, wherein the single-row roller pressure gauge assembly comprises a single-row roller pressure gauge seat, a single-row roller pressure gauge and a single-row roller motor, the single-row roller press seat is arranged on the support arm, the single-row roller motor is fixed on the single-row roller press seat, and the single-row roller press seat is close to the rotary One end of the cutter is installed with the single-row roller pressure gauge, the single-row roller pressure gauge is located obliquely above the rotary cutter, and the rotary cutter is inclined from bottom to top toward the double-row roller assembly. A single-row roller motor is used to drive the single-row roller pressure scale, and the single-row roller motor is connected with the controller. The rotary cutting machine for rotary cutting veneer thickness using cam automatic stepless shifting according to claim 4, wherein the locking adjustment assembly comprises a screw rod, a screw rod mounting seat, two locking nuts and a plurality of Press the bolt, the screw mounting seat is fixed on the support arm, the screw mounting seat is arranged at one end away from the single-row roller scale, and the screw is screwed on the screw mounting seat and the In the single-row roller gauge seat, the two locking nuts installed on the screw rod are respectively arranged on both sides of the screw rod mounting seat, and a plurality of lock nuts are respectively installed on both sides of the single-row roller gauge seat. The pressing bolt is used for locking the single-row roller scale seat on the support arm. The rotary cutting machine for changing the thickness of a veneer by using automatic stepless shifting of a cam according to claim 1, wherein the double-row roller assembly comprises a double-row roller seat, a double-row roller and a double-row roller motor, The double-row roller seat is arranged on the frame, the double-row roller motor is fixed on the double-row roller seat, and the double-row roller seat is installed at one end of the double-row roller seat close to the rotary cutter Rollers, the double-row roller motor is used to drive the double-row rollers, and the double-row roller motor is connected with the controller. The rotary cutting machine for rotary cutting veneer thickness using automatic stepless shifting of cams according to claim 6, wherein the double-row roller feeding assembly comprises a feeding screw, a screw nut and a screw motor , the two ends of the feed screw are respectively mounted on the frame through a screw seat, the screw nut is mounted on the feed screw, the screw nut is connected to the double-row roller One side of the seat is fixedly connected, the screw motor is used to drive the feed screw, and the screw motor is connected with the controller.

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