CN117719011A - Automatic roll cutting system for gypsum board edge sealing belt - Google Patents

Abstract

The invention discloses an automatic rolling and cutting system for a gypsum board edge sealing belt, which comprises a fixed distance conveying mechanism, a measuring mechanism and a rolling and cutting mechanism, wherein a controller measures the position of a spacing board of the fixed distance conveying mechanism by using a positioning and distance measuring sensor according to the measuring mechanism, calculates the moving speed of the spacing board by means of position change in unit time, timely starts the rolling and cutting cutter of the rolling and cutting mechanism to rotate at a rotating speed matched with the moving speed of the spacing board, so that the rolling and cutting cutter can accurately abut against the middle of a fixed distance seam to cut off the edge sealing belt. According to the invention, a rolling cutting mode is adopted, the distance seam position and the moving speed between two adjacent gypsum boards are calculated in a feedback manner by measuring the distance boards by using a measuring mechanism, and the rolling cutting tool is started at proper time to rotate at a rotating speed matched with the distance seam moving speed according to the distance seam position and the moving speed, so that the rolling cutting tool can accurately abut against the middle of the distance seam to cut off the edge sealing belt without stopping the operation.

Description

Automatic roll cutting system for gypsum board edge sealing belt

Technical Field

The invention relates to the field of gypsum board production and manufacturing, in particular to an automatic rolling and cutting system for a gypsum board edge sealing belt.

Background

The gypsum board edge sealing is to seal the exposed side walls of the gypsum boards through edge sealing belts, and in the edge sealing process, a plurality of gypsum boards are conveyed at equal intervals and are attached with the edge sealing belts. Thus, after the edge sealing is completed, the edge sealing tape that is connected between the two plasterboards needs to be cut to separate the plasterboards.

At present, a seam seeking, stopping and cutting mode is generally adopted to cut off the edge sealing belt, namely, a system detects a gap between two adjacent plasterboards through a sensor on a cutting tool, and stops cutting after the gap is detected (namely, the plasterboards are stopped from being conveyed). After the seam searching and stopping, the gypsum board stops conveying due to the stopping, so that the cutting line of the cutter is close to the seam and faces to one conveying side, and the condition that the edge sealing belt is different in tail breaking length due to the fact that the edge sealing belt cannot be cut off in the middle is caused; and when cutting off each time, even cutting is stopped, the continuity of gypsum board production is poor, resulting in lower production efficiency of gypsum board.

Therefore, the automatic cutting system adopting the seam seeking, parking and cutting can not cut centrally by a cutter after parking, so that the problem of inconsistent tail breakage length of the edge sealing belt is also caused, and the problem of influencing the production efficiency due to frequent parking is also solved.

Disclosure of Invention

The invention aims to provide an automatic rolling and cutting system for a gypsum board edge sealing belt, which is used for solving the technical problems that in the prior art, the tail breaking length of the edge sealing belt is inconsistent due to the fact that a cutter cannot cut in the middle after the gypsum board is stopped, and the production efficiency is affected due to frequent stopping.

In order to solve the technical problems, the invention specifically provides the following technical scheme:

an automatic roll-cutting system for a gypsum board edge banding strip, comprising:

the fixed-distance conveying mechanism comprises two belt conveyors positioned above and one conveyor positioned below;

a plurality of partition boards are arranged on the belt conveyor, the distance between two adjacent partition boards is equal to the length of the gypsum board along the conveying direction, and at least two partition boards are always kept below the belt conveyor;

the conveyor sequentially abuts against the spacer plates to convey and seal edges, so that the spacer plates are clamped between two adjacent gypsum plates to convey, a distance seam is formed between the two adjacent gypsum plates to seal edges, and the width of the distance seam is equal to the thickness of the spacer plates;

the measuring mechanism comprises a fixed frame and two symmetrically arranged positioning and ranging sensors;

the fixed frame is transversely arranged on a downstream rack of the conveyor, and the positioning distance measuring sensor is vertically oriented to the belt conveyor and is arranged on the fixed frame;

the positioning distance measuring sensor detects the distance between the spacing plate which is positioned at the bottom of the belt conveyor and is close to the positioning distance measuring sensor and the positioning distance measuring sensor in real time;

the rolling and cutting mechanism comprises two knife rests and two rolling and cutting knives driven by a motor;

the two cutter frames are respectively arranged on the frames at the two sides of the conveyor, the two rolling cutters are respectively and rotatably arranged on the two cutter frames, and the rotating shafts of the rolling cutters are perpendicular to the conveying surface of the conveyor;

the controller measures the change of the distance of the spacing plate along with time in real time according to the positioning distance measuring sensor, and calculates the real-time speed of the spacing plate so as to obtain the moving speed of the distance joint;

the controller controls the rolling cutter to be started when the measured value of the positioning distance measuring sensor reaches a preset value, and the rotating speed of the rolling cutter is dynamically changed according to the moving speed of the distance seam so as to cut off the sealing belt in a state that the conveyor is not stopped.

As a preferred aspect of the present invention, the conveyor includes a feeding conveying section, a cutting conveying section, and a discharging conveying section;

the belt conveyor is positioned above the cutting conveying section, and two ends of the belt conveyor extend to the upper part of the feeding conveying section and the upper part of the discharging conveying section respectively;

the feeding conveying section, the cutting conveying section and the discharging conveying section are sequentially separated by the same distance to form a vacant section, and gypsum boards conveyed by the feeding conveying section are contacted with the partition board above the vacant section between the cutting conveying sections of the feeding conveying section;

wherein the feed conveying section, the cut conveying section and the discharge conveying section are independently operable.

As a preferred aspect of the present invention, the length of the cut conveying section is smaller than the total length of the plurality of gypsum boards conveyed thereon, and the total length of the plurality of gypsum boards conveyed on the cut conveying section is smaller than the distance between the feeding conveying section and the discharging conveying section;

wherein after gypsum board on the feeding conveying section is conveyed against the partition board, the feeding conveying section, the cutting conveying section and the discharging conveying section run at the same speed;

the discharging conveying section accelerates after the rolling cutter works, and the feeding conveying section accelerates and adjusts the running speed in real time according to the moving speed of the distance joint after the rolling cutter works so as to quickly attach the gypsum board to the partition board.

As a preferred aspect of the present invention, the slitting tool includes a cutter roll and a blade;

the blades are arranged on the side wall of the knife roller, and the distance from the cutting edge of each blade to the rotation axis of the knife roller is larger than the distance from the gypsum board edge sealing belt to the rotation axis of the knife roller;

wherein the blade is a peak blade or a single-side blade.

As a preferable mode of the invention, the plurality of blades are arranged, and the plurality of blades are equidistantly arranged around the roller surface of the knife roller;

the distance between the cutting edges of two adjacent blades and the distance between the cutting edges of the adjacent blades and the rotating axis of the cutter roller are smaller than the distance between the gypsum board edge sealing belt and the rotating axis of the cutter roller;

wherein the included angle between two adjacent blades is an acute angle.

As a preferable scheme of the invention, the length of the blade edge of the blade is larger than the width of the edge sealing belt, and the blade edge of the blade is in an inner arc shape or an outer arc shape;

the cutting edge of the blade and the knife back of the blade are in transition through a terrace structure, and the distance from the joint of the terrace structure with the cutting edge to the rotation axis of the knife roller is smaller than the distance from the edge sealing belt of the paste plate to the rotation axis of the knife roller.

As a preferable scheme of the invention, a plurality of limit notches are arranged on the knife roller, and a plurality of blades are slidably arranged in the limit notches;

a plurality of compression springs connected with the blades and the bottoms of the limiting notches are arranged in the limiting notches;

wherein, after the blade rotates with the knife roller and is contacted and extruded by the sealing tape, the blade extrudes the compression spring, so that when the blade is nearly vertical to the sealing tape, the blade extrudes the compression spring to cut off the sealing tape.

As a preferable scheme of the invention, a cavity is formed in the knife roller, an axle center column is arranged in the cavity, and the knife roller is rotatably arranged on the axle center column;

a first magnetic strip is embedded on one side of the axle center column, which is opposite to the edge sealing strip, a second magnetic strip is embedded on the back of the blade, and the opposite surfaces of the first magnetic strip and the second magnetic strip are mutually exclusive;

wherein, be provided with the intercommunication in the middle of the bottom of spacing notch the bar mouth of cavity.

As a preferable scheme of the invention, the tool rest is vertically and slidably arranged on the frame of the conveyor;

when the knife roll rotates to work, the knife rest vertically moves under the drive of external force, so that the knife blade cuts the edge sealing belt; after the cutter blade cuts off the edge sealing belt, the cutter rest is reset under the drive of external force;

wherein, the driving source of knife rest is the cylinder.

As a preferable scheme of the invention, a fixed sleeve is arranged in the knife rest, a connecting sleeve is rotatably arranged in the fixed sleeve, and the connecting sleeve is fixedly arranged at two ends of a roll shaft of the knife roll;

the inner wall of the fixed sleeve is provided with a cam guide post, the outer wall of the connecting sleeve is provided with a reciprocating groove, and the cam guide post is slidingly assembled in the reciprocating groove;

the roller shaft of the knife roller is slidably mounted on the knife rest, and the driving motor of the knife roller is slidably mounted on the knife rest.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, a rolling cutting mode is adopted, the distance seam position and the moving speed between two adjacent gypsum boards are calculated in a feedback manner by measuring the distance boards by using a measuring mechanism, and the rolling cutting tool is started at proper time to rotate at a rotating speed matched with the distance seam moving speed according to the distance seam position and the moving speed, so that the rolling cutting tool can accurately abut against the middle of the distance seam to cut off the edge sealing belt without stopping the operation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.

FIG. 1 is a schematic diagram of an automatic roll-cutting system for gypsum board edge banding provided by an embodiment of the invention;

fig. 2 is a schematic structural diagram of a rolling and cutting mechanism of an automatic rolling and cutting system for a gypsum board edge sealing belt according to an embodiment of the present invention;

FIG. 3 is a schematic view of a knife roll portion of an automatic roll cutting system for gypsum board edge banding provided by an embodiment of the invention;

FIG. 4 is a schematic view of a blade portion of an automatic roll-cutting system for gypsum board edge banding provided by an embodiment of the invention;

FIG. 5 is a schematic diagram of a portion of an axial center column of an automatic roll-cutting system for a gypsum board edge banding band according to an embodiment of the invention;

fig. 6 is a schematic assembly view of a fixing sleeve and a connecting sleeve of an automatic roll-cutting system for a gypsum board edge sealing belt according to an embodiment of the invention.

Reference numerals in the drawings are respectively as follows:

1-a fixed-distance conveying mechanism; 2-a measuring mechanism; 3-a roll cutting mechanism;

11-a belt conveyor; 12-a conveyor; 21-a fixing frame; 22-positioning a ranging sensor; 31-knife rest; 32-a rolling cutter;

111-spacer plates; 121-a feed transport section; 122-cutting the conveying section; 123-a discharge conveying section; 124-blank section; 311-fixing sleeve; 312-connecting sleeve; 313-cam guide post; 314—a reciprocating groove;

321-knife rolls; 322-blade; 323-limit notch; 324-compressing a spring; 325-cavity; 326-an axle center column; 327-a first magnetic stripe; 328-a second magnetic stripe; 329-strip-shaped mouth.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1 and 2, the present invention provides an automatic roll-cutting system for a gypsum board edge banding strip, comprising:

the distance conveying mechanism 1 comprises two belt conveyors 11 positioned above and one conveyor 12 positioned below;

a plurality of partition plates 111 are arranged on the belt conveyor 11, the distance between two adjacent partition plates 111 is equal to the length of the gypsum board along the conveying direction, and at least two partition plates 111 are always kept below the belt conveyor 11;

the conveyor 12 sequentially conveys and seals the gypsum boards against the partition board 111, so that the partition board 111 is clamped between two adjacent gypsum boards for conveying, a distance seam is formed between the two adjacent sealed gypsum boards, and the width of the distance seam is equal to the thickness of the partition board 111;

the measuring mechanism 2 comprises a fixed frame 21 and two symmetrically arranged positioning and distance measuring sensors 22;

a fixed frame 21 is transversely arranged on a downstream rack of the conveyor 12, and a positioning ranging sensor 22 is vertically oriented to the belt conveyor 11 and is arranged on the fixed frame 21;

the positioning and ranging sensor 22 detects the distance between the spacer 111 positioned at the bottom of the belt conveyor 11 and close to the positioning and ranging sensor 22 and the positioning and ranging sensor 22 in real time;

the hobbing mechanism 3 comprises two cutter holders 31 and two hobbing cutters 32 driven by a motor;

the two knife holders 31 are respectively arranged on the two side frames of the conveyor 32, the two rolling cutters 32 are respectively and rotatably arranged on the two knife holders 31, and the rotating shafts of the rolling cutters 32 are perpendicular to the conveying surface of the conveyor 12;

wherein, the controller measures the change of the distance of the spacing plate 111 along with time in real time according to the positioning distance measuring sensor 22, calculates the real-time speed of the spacing plate 111 to obtain the moving speed of the distance seam;

the controller controls the slitting knife 32 to be activated when the measured value of the positioning ranging sensor 22 reaches a preset value, and the rotational speed of the slitting knife 32 is dynamically changed according to the moving speed of the distance slit to cut off the edge sealing tape in a state where the conveyor 12 is not stopped.

The automatic rolling and cutting system of the present embodiment mainly uses the positioning ranging sensor 22 of the measuring mechanism 2 to detect the partition board 111, so as to obtain the position and the moving speed of the partition board in real time, thereby obtaining the position and the moving speed of the distance seam, and the controller can control the rolling and cutting cutter 32 of the rolling and cutting mechanism 3 to rotate when the distance seam moves to the set position (i.e. the measured value of the positioning ranging sensor 22 reaches the preset value), and adjust the rotating speed of the rolling and cutting cutter 32 in real time according to the speed of the distance seam, so that the rolling and cutting cutter 32 can cut the edge sealing tape at the distance seam at the rotating speed matched with the moving speed of the gypsum board, thereby accurately cutting off the edge sealing tape, and the conveyor 12 is not required to stop.

And the rotational speed of the real-time adjustment of the slitting mill 32 matches the speed of movement of the gypsum board, thereby avoiding interaction of the slitting mill 32 with the gypsum board transport.

In the existing system for automatically cutting off the edge sealing belt, a mode of seam searching, stopping and cutting is generally adopted, namely, a sensor on a cutting tool detects a gap between two adjacent gypsum boards, and stopping for cutting is carried out after the gap is detected.

After the seam searching and stopping, the gypsum board stops conveying due to stopping, and the cutting line of the cutter is close to one side of the seam conveying direction, so that the condition that the edge sealing belt is different in tail breaking length due to incapability of cutting off in the middle is caused, and therefore, the automatic cutting system is inaccurate in cutting precision and can reduce production efficiency due to stopping.

Therefore, compared with the existing automatic edge sealing belt cutting system, the automatic edge sealing belt rolling system of the embodiment can determine the position and the moving speed of the distance seam by detecting the position and the moving speed of the distance plate 111, and timely start the rolling cutter 32 to rotate at a rotating speed matched with the moving speed of the distance seam according to the position and the moving speed of the distance seam, so that the rolling cutter 32 can accurately abut against the middle of the distance seam to cut off the edge sealing belt, and the conveyor 12 is not required to stop, thereby improving the production efficiency.

The preset value is obtained through multiple field tests, so as to ensure that the driving motor (preferably a stepping motor, accurate and easy to control) of the rolling cutter 32 does not have the conditions of sudden increase of the rotating speed (easy out of step) or too slow rotating speed (too long adjustment time, and too high energy consumption).

Wherein the slitting knife 32 gradually slows down before slitting the edge-sealed band and the slitting knife 32 gradually accelerates after slitting the edge-sealed band.

The specific reasons are as follows:

since the slitting knife 32 is in a rotary motion and the edge strip is moving in a straight line, if the slitting knife 32 is matched to the moving speed of the edge strip when the moving speed of the edge strip is a constant value, it is necessary that the horizontal moving speed of the cutting contact point of the slitting knife 32 and the edge strip be consistent with the moving speed of the edge strip.

The linear velocity of the rotating cutting contact point in the horizontal direction and the linear velocity of the rotating cutting contact point in the vertical direction are changed along with the rotation angle, and the linear velocity of the cutting contact point in the horizontal direction is set to be equal to the moving velocity of the sealing tape (the moving velocity of the distance slit).

The angle between the linear velocity of the cutting contact point and the horizontal partial velocity gradually decreases in the process from contact to cutting, so that the horizontal partial velocity gradually increases, and the rotational speed of the slitting tool 32 needs to be reduced in order to make the horizontal partial velocity of the cutting contact point equal to the movement velocity of the edge sealing belt;

since the angle between the linear velocity of the cutting contact point and the horizontal partial velocity gradually increases from the cutting to the leaving of the edge strip, the horizontal partial velocity gradually decreases, and the rotational speed of the slitting tool 32 needs to be increased in order to make the horizontal partial velocity of the cutting contact point equal to the moving velocity of the edge strip.

The specific calculation formula is as follows:

rotational speed = linear speed/2rr= (cosine value of edge band moving speed/rotational angle)/2rr.

Wherein, the cosine value of the rotation angle is: the cosine of the angle of deflection of the cutting contact point (the angle of deflection being based on the perpendicular from the axis of rotation of the slitting tool 32 to the edge-sealing strip).

The two gypsum boards are separated by the partition board 111 and then subjected to edge sealing, and then the edge sealing is cut off, so that the edge sealing is also positioned at the conveyor 12, and before the edge sealing, the two adjacent gypsum boards must be ensured to clamp the partition board, so that the gaps of the two adjacent gypsum boards are fixed to form a distance seam, and the cutting accuracy is improved.

Thus, in order to ensure that two adjacent plasterboards can grip the spacer 111 before sealing and complete the sealing during transportation, the following preferred embodiments are provided.

As shown in fig. 1, conveyor 12 includes an infeed conveyor section 121, a cutting conveyor section 122, and an outfeed conveyor section 123;

the belt conveyor 11 is positioned above the cutting conveying section 122, and two ends of the belt conveyor 11 extend above the feeding conveying section 121 and above the discharging conveying section 123 respectively;

the feeding conveying section 121, the cutting conveying section 122 and the discharging conveying section 123 are sequentially spaced at the same distance to form a vacant section 124, and gypsum boards conveyed by the feeding conveying section 121 are contacted with the partition board 111 above the vacant section 124 between the cutting conveying sections 122 of the feeding conveying section 121;

wherein the infeed conveyor section 121, the cut conveyor section 122 and the outfeed conveyor section 123 are capable of independent operation.

Specifically, the feeding conveyor section 121 is capable of conveying gypsum board onto the cut conveyor plate 122 and over the vacant section 124 between the feeding conveyor section 121 and the cut conveyor plate 122, bringing the gypsum board into contact with the spacer plate 111, thereby pushing the spacer plate 111 to move.

Therefore, the belt conveyor 11 is not driven by a power source, and energy is saved.

The two gypsum boards holding the partition plate 111 are edge-sealed at the front end of the cutting conveying section 122, and then conveyed to the upper side of the vacant section 123 between the cutting conveying section 122 and the discharging conveying section 123 to be cut off the edge-sealed belt, and the gypsum boards cut off the edge-sealed belt are sent out by the discharging conveying section 123.

Accordingly, the feeding conveying section 121, the cutting conveying section 122, and the discharging conveying section 123 can be conveyed at a constant speed to improve smoothness and reduce difficulty in control program design of cutting.

However, in actual production, the upstream gypsum board is not guaranteed to be fed at the same speed, and the gypsum board cut into the tape is rapidly gathered and packed in the downstream process.

Therefore, if the gypsum board conveying speed in the upstream and downstream processes is not equal to the gypsum board conveying speed at the edge seal, the following preferred embodiments are provided in order to make the automatic roll cutting system more compatible with the actual production upstream and downstream processes.

As shown in fig. 1, the length of the cut conveying section 122 is smaller than the total length of the plurality of gypsum boards conveyed thereon, and the total length of the plurality of gypsum boards conveyed on the cut conveying section 122 is smaller than the distance between the feeding conveying section 121 and the discharging conveying section 123;

wherein, after the gypsum board on the feeding conveying section 121 is conveyed against the partition board 111, the feeding conveying section 121, the cutting conveying section 122 and the discharging conveying section 123 run at constant speed;

the discharge conveying section 123 is accelerated to run after the rolling cutter 32 is operated, and the feed conveying section 121 is accelerated and adjusted in real time according to the moving speed of the distance slit after the rolling cutter 32 is operated, so as to rapidly bring the gypsum board against the partition 111.

Specifically, by designing the length of the cutting conveying section 122 and the design of the gap section 124 between the feeding conveying section 121 and the discharging conveying section 123 and the cutting conveying section 122, the gypsum board is brought into contact with the partition board 111 at the gap section 124 and separated from the partition board 111 at the gap section 124, thereby avoiding friction between the gypsum board feeding and the gypsum board discharging and the cutting conveying 122.

And the conveying speeds of the feeding conveying section 121, the cutting conveying section 122 and the discharging conveying section 123 which are designed separately are independently controlled, so that the feeding conveying section 121, the cutting conveying section 122 and the discharging conveying section can be matched with the conveying speeds of gypsum boards at the upstream and the downstream better.

And when the gypsum board and the partition board 111 are not sealed and kept in contact, and when the gypsum board and the partition board 111 are sealed and not cut off, the feeding conveying section 121, the cutting conveying section 122 and the discharging conveying section 123 keep the conveying speed consistent, and the fluctuation of the conveying speed of the sealing belt is reduced, so that the rotating speed of the rolling cutter 32 is more stable, and the cutting is more accurate.

The roll-cutting tool 32 is an important component for cutting the edge strip, and because of the manner of roll-cutting, the roll-cutting tool is required to cut the edge strip by pressure, and therefore the roll-cutting tool 32 is required to be sufficiently sharp, the following preferred embodiments are provided.

As shown in fig. 2, the slitting knife 32 includes a knife roller 321 and a knife blade 322;

the blades 322 are disposed on the side walls of the knife roller 321, and the distance from the edges of the blades 322 to the rotation axis of the knife roller 321 is greater than the distance from the gypsum board edge sealing tape to the rotation axis of the knife roller 321;

wherein the blade 322 is a peak blade or a single edge blade.

In particular, the edge of blade 322 needs to have the ability to pass through the tape and, therefore, the distance of the edge of blade 322 to the axis of rotation of knife roller 321 needs to be greater than the distance of the plasterboard tape to the axis of rotation of knife roller 321.

In order to increase the sharpness of the blade 322, a peak blade or a single blade is selected to reduce the blade angle, and a single blade is preferred, with the vertical plane of the single blade facing in the direction of rotation, so that the blade 322 maintains a larger cutting angle when contacting the edge sealing tape.

Therefore, the blade 322 can cut off the edge sealing belt rapidly, so that the pressure of the blade 322 on the edge sealing belt is reduced, and the defect that the edge sealing belt is broken during cutting due to overlarge pressure is avoided.

If only one blade 322 is used for cutting, the blade 322 needs to rotate one revolution every time cutting is performed, and the motor driving the cutter roller 321 needs to rotate at least one revolution, resulting in an increase in cutting energy consumption. Accordingly, the following preferred embodiments are provided.

As shown in fig. 3, the plurality of blades 322 are provided, and the plurality of blades 322 are installed equidistantly around the roll surface of the cutter roll 321;

the distance between the cutting edges of two adjacent blades 322 and the rotation axis of the knife roller 321 is smaller than the distance between the gypsum board edge sealing belt and the rotation axis of the knife roller 321;

wherein the angle between two adjacent blades 322 is acute.

Specifically, a plurality of blades 322 are disposed on the knife roller 321, and the distance between two adjacent blades 322, which corresponds to the distance between the cutting edges of the two blades 322 and the rotation axis of the knife roller 321, is smaller than the distance between the gypsum board edge sealing belt and the rotation axis of the knife roller 321.

That is, two adjacent blades 322 can be symmetrically distributed on one side of the edge sealing tape, so that when the edge sealing tape is cut each time, only one angle is needed to rotate the knife roller 321, and the angle is the included angle between the two adjacent blades 322.

And setting this angle to an acute angle can increase the cutting angle at which the blade 322 contacts the tape to rapidly sever the tape, and the lateral pressure applied to the blade 322 is reduced (the component perpendicular to the blade 322 of the reaction force applied to the blade 322 is reduced as the cutting angle increases), thereby preventing the blade 322 from breaking.

In the cutting process, the blade 322 is in contact with the edge sealing belt to form a line, the edge sealing belt has certain flexibility, is difficult to cut directly, and can be cut after being pressed down to a certain extent, so that in the process, the edge sealing belt is easy to be broken, and the fracture of the edge sealing belt is uneven.

Accordingly, in order to enable the blade 322 to easily cut the tape and avoid the tape from breaking, the following preferred embodiments are provided.

As shown in fig. 2 and 3, the blade edge length of the blade 322 is greater than the width of the edge banding band, and the blade edge of the blade 322 is in an inner arc shape or an outer arc shape;

the cutting edge of the blade 322 and the back of the blade are transited through the terrace structure, and the distance between the connecting part of the terrace structure with the offset 322 and the cutting edge and the rotation axis of the knife roller 321 is smaller than the distance between the sealing strip of the paste plate and the rotation axis of the knife roller 321.

Specifically, the blade edge of the blade 322 adopts an outer arc or inner arc design, so that the contact area between the blade 322 and the edge sealing belt is reduced, and the pressure of the blade 322 on the edge sealing belt is increased, so that the edge sealing belt can be easily cut from the middle to two sides (the outer arc blade 322) or from two sides to the middle (the inner arc blade 322), and excessive bursting of the edge sealing belt due to excessive tension caused by pressure sinking is avoided.

Moreover, the blade 322 adopts a two-section design, and the blade and the knife back are in transition through the bench structure, so that the width of the blade is reduced and the width of the knife back is increased, the leverage of the blade is reduced, and the condition that the blade is broken under pressure or is curled is prevented.

In the cutting process, the blade 322 cuts the edge sealing tape without approaching the vertical edge sealing tape, so that the contact area of the edge sealing tape and the cutter is pressed and cut with a larger inclination angle in the process, and the tension force of the upstream edge sealing tape is larger than that of the downstream edge sealing tape, and the situation that the edge sealing tape is broken due to uneven stress on two sides of the cutting line still exists.

Thus, in order to enable the blade 322 to sever the edge strip approximately perpendicular to the edge strip to balance the tension forces applied on both sides of the edge strip, the following preferred embodiments are provided.

As shown in fig. 4, a plurality of limit notches 323 are provided on the cutter roller 321, and a plurality of blades 322 are slidably installed in the limit notches 323;

a plurality of compression springs 324 connected with the blades 322 and the bottom of the limit notch 323 are arranged in the limit notch 323;

wherein, after the blade 322 rotates with the cutter roller 321 and is pressed by the tape, the blade 322 presses the compression spring 324, so that when the blade 322 is nearly perpendicular to the tape, the blade 322 is pressed by the compression spring 324 to cut the tape.

Specifically, the blade 322 can be pressed into the limit notch 323 after receiving the reaction force of the edge band, and as the blade 322 rotates, the reaction force of the blade increases gradually, and the elastic force of the compression spring 324 increases gradually, so that the pressure (the elastic force of the compression spring 324) applied by the blade 322 to the edge band can cut off the edge band when the blade 322 is nearly perpendicular or perpendicular to the edge band.

At this time, the inclination angle of the cutting angle between the blade 322 and the edge sealing belt is smaller, so that the tension difference at two sides of the cutting line of the edge sealing belt is reduced, and the situation that the tension force at one side of the edge sealing belt is too large to break is avoided.

Since the blade 322 is elongated with a length greater than the width of the edge band, the compression springs 324 need to be provided in plurality to uniformly bear pressure to avoid the uneven alignment of the blade 322.

However, the resilient design of the plurality of compression springs 324 makes it more difficult for the blade 322 to sever the edge strip when it is nearly perpendicular or perpendicular to the edge strip.

Accordingly, in order to reduce the difficulty of the blade 322 severing the edge strip when it is nearly perpendicular or perpendicular to the edge strip, the following preferred embodiments are provided.

As shown in fig. 5, a cavity 325 is formed in the cutter roller 321, and an axle center post 326 is arranged in the cavity 325, and the cutter roller 321 is rotatably mounted on the axle center post 326;

a first magnetic stripe 327 is embedded at one side of the axle center column 326 facing the edge sealing belt, a second magnetic stripe 328 is embedded on the back of the blade 322, and the opposite surfaces of the first magnetic stripe 327 and the second magnetic stripe 328 are mutually exclusive;

wherein a strip-shaped opening 329 communicating with the cavity 325 is centrally provided at the bottom of the limit slot 323.

Specifically, by arranging the first magnetic stripe 327 on the side of the axle center column 326 inside the knife roller 321 facing the edge sealing belt and arranging the second magnetic stripe 328 on the back of the knife blade 322, when the knife blade 322 rotates along with the knife roller 321 to align with the first magnetic stripe 327, the repulsive force of the first magnetic stripe 327 on the second magnetic stripe 328 can push the knife blade 322 to move towards the edge sealing belt and cut off the edge sealing belt, so that the knife blade 322 is close to or perpendicular to the edge sealing belt to cut off the edge sealing belt.

Therefore, the limit compression total elastic force of the plurality of compression springs 324 is only needed to enable the blade 322 to cut off the sealing belt, so that the design difficulty is greatly reduced. And, the problem that the blade 322 cannot be pushed to move in place due to the attenuation of the elastic force of the compression spring 324 caused by long-term operation is solved.

Therefore, if the compression spring 324 is used only to push the cutter, the cutter may not be cut after long-term use.

Further, the bottom of the limit notch 323 is provided with a strip-shaped opening 329, so that the material of the knife roller 321 is prevented from interfering the repulsive force of the first magnetic stripe 327 to the second magnetic stripe 328, and the working reliability is improved.

In the foregoing embodiments, when the edge band is cut by the flat blade 322, the edge band is easily broken. Accordingly, another embodiment is provided below to avoid the occurrence of stretch breaking of the edge strip when using a straight blade 322 to sever the edge strip.

As shown in fig. 2, the tool holder 31 is vertically slidably mounted on the frame of the conveyor 12;

when the knife roller 321 rotates to work, the knife rest 31 is driven by external force to vertically move, so that the knife blade 322 cuts the edge sealing belt; and after the edge sealing belt is cut off by the blade 322, the knife rest 31 is reset under the drive of external force;

the driving source of the tool post 31 is a cylinder.

Specifically, the knife rest 31 can push the knife roller 321 to move upwards when the knife roller 321 rotates and the knife blade 322 cuts, so that the knife blade 322 cuts the edge sealing belt, and the edge sealing belt can be cut under the condition that the knife blade 322 applies small pressure to the edge sealing belt, so that the edge sealing belt is prevented from being broken due to large tension.

Thus, by converting roll cutting to roll cutting, the flat blade 322 is also able to quickly sever the edge-sealed tape and maintain the cut flat.

The motion of the tool rest 31 requires the driving source of the air cylinder to drive, and then the controller cooperates with the control program to drive the motor for rotating the tool roll 321, so that the energy consumption is increased, and the programming difficulty is also improved.

Accordingly, a preferred embodiment is provided below without the need for an additional drive source to drive the tool holder 31.

As shown in fig. 2 and 6, a fixing sleeve 311 is arranged in the tool rest 31, a connecting sleeve 312 is rotatably arranged in the fixing sleeve 311, and the connecting sleeve 312 is fixedly arranged at two ends of a roll shaft of the tool roll 321;

a cam guide post 313 is arranged on the inner wall of the fixed sleeve 311, a reciprocating groove 314 is arranged on the outer wall of the connecting sleeve 312, and the cam guide post 313 is slidingly assembled in the reciprocating groove 314;

wherein, the roller shaft of the knife roller 321 is slidingly mounted on the knife rest 31, and the driving motor of the knife roller 321 is slidingly mounted on the knife rest 31.

Specifically, when the cam guide post 313 of the fixed sleeve 311 and the reciprocating groove 314 of the connecting sleeve 312 are used to make the connecting sleeve 312 rotate along with the knife roller 321, the connecting sleeve can axially reciprocate with the fixed sleeve 311, so that the knife roller 321 can axially reciprocate.

And the fixed sleeve 311 and the connecting sleeve 312 slide reciprocally once every time the knife roller 321 rotates by one angle (the angle between the two blades 322), namely, the knife roller 321 moves reciprocally once in the axial direction, thereby realizing the sliding cutting and resetting of the blades 322.

The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application, the scope of which is defined by the claims. Various modifications and equivalent arrangements may be made to the present application by those skilled in the art, which modifications and equivalents are also considered to be within the scope of the present application.

Claims (10)

1. An automatic roll-cutting system for a gypsum board edge banding strip, comprising:

the fixed-distance conveying mechanism (1) comprises two belt conveyors (11) positioned above and one conveyor (12) positioned below;

a plurality of partition boards (111) are arranged on the belt conveyor (11), the distance between two adjacent partition boards (111) is equal to the length of the gypsum board along the conveying direction, and at least two partition boards (111) are always kept below the belt conveyor (11);

the conveyor (12) sequentially abuts against the partition plates (111) to convey and seal edges, so that the partition plates (111) are clamped between two adjacent gypsum plates to convey, a distance seam is formed between the two adjacent edge-sealed gypsum plates, and the width of the distance seam is equal to the thickness of the partition plates (111);

the measuring mechanism (2) comprises a fixed frame (21) and two symmetrically arranged positioning and distance measuring sensors (22);

the fixed frame (21) is transversely arranged on a downstream rack of the conveyor (12), and the positioning and ranging sensor (22) is vertically oriented to the belt conveyor (11) and is arranged on the fixed frame (21);

the positioning distance measuring sensor (22) detects the distance between the spacing plate (111) which is positioned at the bottom of the belt conveyor (11) and is close to the positioning distance measuring sensor (22) and the positioning distance measuring sensor (22) in real time;

a hobbing mechanism (3) comprising two tool holders (31) and two hobbing cutters (32) driven by a motor;

the two cutter holders (31) are respectively arranged on the racks at the two sides of the conveyor (32), the two rolling cutters (32) are respectively and rotatably arranged on the two cutter holders (31), and the rotating shafts of the rolling cutters (32) are perpendicular to the conveying surface of the conveyor (12);

the controller calculates the real-time speed of the spacing plate (111) according to the change of the distance of the spacing plate (111) with time measured by the positioning distance measuring sensor (22) so as to obtain the moving speed of the distance seam;

the controller controls the rolling cutter (32) to be started when the measured value of the positioning distance measuring sensor (22) reaches a preset value, and the rotating speed of the rolling cutter (32) is dynamically changed according to the moving speed of the distance gap so as to cut off the sealing belt in a state that the conveyor (12) is not stopped.

2. An automatic roll-cutting system for gypsum board edge banding as claimed in claim 1, wherein,

the conveyor (12) comprises a feeding conveying section (121), a cutting conveying section (122) and a discharging conveying section (123);

the belt conveyor (11) is positioned above the cutting conveying section (122), and two ends of the belt conveyor (11) respectively extend to the upper part of the feeding conveying section (121) and the upper part of the discharging conveying section (123);

the feeding conveying section (121), the cutting conveying section (122) and the discharging conveying section (123) are sequentially separated by the same distance to form a vacant section (124), and gypsum boards conveyed by the feeding conveying section (121) are contacted with the partition board (111) above the vacant section (124) between the cutting conveying sections (122) of the feeding conveying section (121);

wherein the feeding conveying section (121), the cutting conveying section (122) and the discharging conveying section (123) can work independently.

3. An automatic roll-cutting system for gypsum board edge banding as claimed in claim 2, wherein,

the length of the cutting conveying section (122) is smaller than the total length of a plurality of gypsum boards conveyed on the cutting conveying section (122), and the total length of a plurality of gypsum boards conveyed on the cutting conveying section (122) is smaller than the distance between the feeding conveying section (121) and the discharging conveying section (123);

wherein, after the gypsum board on the feeding conveying section (121) is conveyed against the partition board (111), the feeding conveying section (121), the cutting conveying section (122) and the discharging conveying section (123) run at constant speed;

the discharging conveying section (123) accelerates after the rolling cutter (32) works, and the feeding conveying section (121) accelerates and adjusts the running speed in real time according to the moving speed of the distance gap after the rolling cutter (32) works so as to quickly attach the gypsum board to the partition board (111).

4. An automatic roll-cutting system for gypsum board edge banding as claimed in any one of claims 1 to 3, wherein,

the rolling cutter (32) comprises a cutter roller (321) and a cutter blade (322);

the blade (322) is arranged on the side wall of the knife roller (321), and the distance from the cutting edge of the blade (322) to the rotation axis of the knife roller (321) is larger than the distance from the gypsum board edge sealing belt to the rotation axis of the knife roller (321);

wherein the blade (322) is a peak blade or a single-edge blade.

5. An automatic roll-cutting system for gypsum board edge banding as claimed in claim 4, wherein,

the blades (322) are provided with a plurality of blades, and the blades (322) are equidistantly arranged around the roller surface of the knife roller (321);

the distance between the cutting edge of two adjacent blades (322) and the rotation axis of the knife roller (321) is smaller than the distance between the gypsum board edge sealing belt and the rotation axis of the knife roller (321);

wherein the included angle between two adjacent blades (322) is an acute angle.

6. An automatic roll-cutting system for gypsum board edge banding as claimed in claim 5, wherein,

the length of the blade (322) is longer than the width of the edge sealing belt, and the blade (322) is in an inner arc shape or an outer arc shape;

the cutting edge of the blade (322) and the knife back of the blade are transited through a terrace structure, and the distance from the connecting part of the terrace structure with the deviation (322) and the cutting edge to the rotation axis of the knife roll (321) is smaller than the distance from the edge sealing belt of the paste plate to the rotation axis of the knife roll (321).

7. An automatic roll-cutting system for gypsum board edge banding as claimed in claim 6, wherein,

a plurality of limit notches (323) are formed in the knife roller (321), and a plurality of blades (322) are slidably arranged in the limit notches (323);

a plurality of compression springs (324) which are connected with the blade (322) and the bottom of the limiting notch (323) are arranged in the limiting notch (323);

wherein, after the blade (322) rotates with the knife roller (321) and is pressed by the sealing tape, the blade (322) presses the compression spring (324) so that the blade (322) is pressed by the compression spring (324) to cut the sealing tape when the blade (322) is nearly perpendicular to the sealing tape.

8. An automatic roll-cutting system for gypsum board edge banding as claimed in claim 7, wherein,

a cavity (325) is formed in the knife roller (321), an axle center column (326) is arranged in the cavity (325), and the knife roller (321) is rotatably arranged on the axle center column (326);

a first magnetic strip (327) is embedded at one side of the axle center column (326) opposite to the edge sealing belt, a second magnetic strip (328) is embedded on the back of the blade (322), and the opposite surfaces of the first magnetic strip (327) and the second magnetic strip (328) are mutually exclusive;

wherein, the bottom of the limit notch (323) is centrally provided with a strip-shaped opening (329) communicated with the cavity (325).

9. An automatic roll-cutting system for gypsum board edge banding as claimed in claim 4, wherein,

the tool rest (31) is vertically and slidably arranged on a frame of the conveyor (12);

when the knife roller (321) rotates to work, the knife rest (31) vertically moves under the drive of external force, so that the knife blade (322) cuts the edge sealing belt; and after the knife blade (322) cuts off the edge sealing belt, the knife rest (31) is reset under the drive of external force;

wherein the driving source of the tool rest (31) is a cylinder.

10. An automatic roll-cutting system for gypsum board edge banding as claimed in claim 9, wherein,

a fixed sleeve (311) is arranged in the tool rest (31), a connecting sleeve (312) is rotatably arranged in the fixed sleeve (311), and the connecting sleeve (312) is fixedly arranged at two ends of a roll shaft of the tool roll (321);

a cam guide post (313) is arranged on the inner wall of the fixed sleeve (311), a reciprocating groove (314) is arranged on the outer wall of the connecting sleeve (312), and the cam guide post (313) is slidingly assembled in the reciprocating groove (314);

the roll shaft of the knife roll (321) is slidably mounted on the knife rest (31), and the driving motor of the knife roll (321) is slidably mounted on the knife rest (31).