Automatic rolling cutting system for gypsum board edge sealing tape

Abstract

The application discloses a kind of automatic roll cutting systems of gypsum board edge sealing tape, including fixed-distance conveying mechanism, measuring mechanism and roll cutting mechanism, controller according to measuring mechanism utilizes position ranging sensor to measure the position of interval plate of fixed-distance conveying mechanism, and the moving speed of interval plate is calculated by relying on the position change in unit time, and the rotation of roll cutting tool of roll cutting mechanism is started in time, and it is rotated at the rotating speed matching the moving speed of interval plate, so that roll cutting tool can be accurately cut off edge sealing tape in the middle of fixed-distance joint.The application adopts the mode of roll cutting, measures the interval plate by measuring mechanism, calculates the position and moving speed of fixed-distance joint between adjacent two gypsum boards by feedback, and according to the position and moving speed of fixed-distance joint, the rotation of roll cutting tool is started in time at the rotating speed matching the moving speed of fixed-distance joint, so that roll cutting tool can be accurately cut off edge sealing tape in the middle of fixed-distance joint, and there is no need to stop work.

Description

Technical Field

[0001] This invention relates to the field of gypsum board production and manufacturing, and specifically to an automatic rolling and cutting system for gypsum board edge banding. Background Technology

[0002] Gypsum board edge banding involves sealing the exposed sidewalls of gypsum boards with edge banding tape. During this process, multiple gypsum boards are typically transported at equal intervals and the edge banding tape is applied. Therefore, after edge banding is completed, the edge banding tape connecting two gypsum boards needs to be cut to separate them.

[0003] Currently, the common method for cutting edge banding is to use a gap-finding stop-cutting method. This involves the system detecting the gap between adjacent gypsum boards using sensors on the cutting blade, and stopping the system (i.e., stopping the gypsum board conveying) upon detection of the gap to begin cutting. However, after gap-finding stop-cutting, the gypsum board stops being conveyed, causing the cutting line of the blade to be closer to the side of the gap facing the conveyor, resulting in uneven cuts and inconsistent lengths of the edge banding. Furthermore, the need to stop the system for each cut leads to poor continuity in gypsum board production, resulting in low production efficiency.

[0004] Therefore, this automatic cutting system that uses seam-finding stopping for cutting has the problem of inconsistent lengths of the edge banding strip due to the blade not being able to cut in the center after stopping, and it also affects production efficiency due to frequent stops. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic rolling cutting system for gypsum board edge banding, in order to solve the technical problems in the prior art where the cutting tool cannot be centered after stopping, resulting in inconsistent lengths of the edge banding ends, and frequent stops also affect production efficiency.

[0006] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution:

[0007] An automatic roll-cutting system for gypsum board edge banding includes:

[0008] A fixed-distance conveyor mechanism includes two belt conveyors located above and one conveyor located below;

[0009] The belt conveyor is equipped with multiple partition plates, the distance between two adjacent partition plates is equal to the length of the gypsum board along the conveying direction, and at least two partition plates are always maintained below the belt conveyor;

[0010] The conveyor sequentially conveys multiple gypsum boards against the partition plate for edge sealing, so that the partition plate is sandwiched between adjacent gypsum boards during conveying, and a fixed-distance joint is formed between adjacent edge-sealed gypsum boards, the width of which is equal to the thickness of the partition plate.

[0011] The measuring mechanism includes a fixed frame and two symmetrically arranged positioning and ranging sensors;

[0012] The fixed frame is installed across the downstream frame of the conveyor, and the positioning and ranging sensor is perpendicular to the belt conveyor and installed on the fixed frame;

[0013] The positioning and ranging sensor detects in real time the distance between the spacer plate located at the bottom of the belt conveyor and close to the positioning and ranging sensor and the positioning and ranging sensor;

[0014] The rolling cutting mechanism includes two tool holders and two rolling cutting tools driven by a motor;

[0015] The two tool holders are respectively mounted on the two side frames of the conveyor, and the two rolling cutters are respectively rotatably mounted on the two tool holders, with the rotation axis of the rolling cutters perpendicular to the conveying surface of the conveyor;

[0016] The controller measures the distance of the spacer plate over time in real time using the positioning and ranging sensor, and calculates the real-time speed of the spacer plate to obtain the moving speed of the fixed-distance slot.

[0017] The controller controls the rolling cutter to start when the measurement value of the positioning and distance measuring sensor reaches a preset value, and the rotation speed of the rolling cutter dynamically changes according to the moving speed of the fixed-distance seam, so as to cut the sealing tape without stopping the conveyor.

[0018] As a preferred embodiment of the present invention, the conveyor includes a feeding conveying section, a cutting conveying section, and a discharging conveying section;

[0019] The belt conveyor is located above the cutting conveyor section, and both ends of the belt conveyor extend above the feeding conveyor section and the discharging conveyor section, respectively.

[0020] The feeding conveying section, the cutting conveying section, and the discharging conveying section are sequentially spaced at equal intervals to form gaps, and the gypsum board conveyed by the feeding conveying section contacts the spacer above the gap located between the cutting conveying section and the feeding conveying section.

[0021] The feeding conveyor section, the cutting conveyor section, and the discharging conveyor section can operate independently.

[0022] In a preferred embodiment of the present invention, the length of the cutting conveyor section is less than the total length of the multiple gypsum boards conveyed thereon, and the total length of the multiple gypsum boards conveyed on the cutting conveyor section is less than the distance between the feeding conveyor section and the discharging conveyor section.

[0023] In this process, after the gypsum board on the feeding conveyor section is conveyed and attached to the partition plate, the feeding conveyor section runs at the same speed as the cutting conveyor section and the discharging conveyor section.

[0024] The discharge conveying section accelerates after the rolling cutter operates, and the feed conveying section accelerates and adjusts its running speed in real time according to the moving speed of the fixed-distance seam after the rolling cutter operates, so as to quickly attach the gypsum board to the partition plate.

[0025] As a preferred embodiment of the present invention, the rolling cutter includes a cutter roller and a blade;

[0026] The blade is disposed on the side wall of the cutter roller, and the distance from the blade edge to the rotation axis of the cutter roller is greater than the distance from the gypsum board edge banding to the rotation axis of the cutter roller.

[0027] The blade is either a peak blade or a single-sided blade.

[0028] As a preferred embodiment of the present invention, the blades are provided in a plurality of them, and the plurality of blades are installed at equal intervals around the roller surface of the cutter roller;

[0029] The distance between the blades of two adjacent blades and the distance between the rotation axis of the blade roller are less than the distance from the gypsum board edge banding to the rotation axis of the blade roller;

[0030] The included angle between two adjacent blades is an acute angle.

[0031] In a preferred embodiment of the present invention, the blade length is greater than the width of the sealing tape, and the blade edge is in the shape of an inner arc or an outer arc.

[0032] The blade edge and its back edge are transitioned by a stepped structure, and the distance from the connection point of the deflected stepped structure and the blade edge to the rotation axis of the blade roller is less than the distance from the grease board sealing strip to the rotation axis of the blade roller.

[0033] As a preferred embodiment of the present invention, a plurality of limiting grooves are provided on the cutter roller, and a plurality of blades are slidably installed in the limiting grooves;

[0034] Multiple compression springs are provided in the limiting groove to connect the blade and the bottom of the limiting groove;

[0035] Wherein, after the blade rotates with the cutter roller and is pressed by the sealing strip, the blade presses against the compression spring so that when the blade is nearly perpendicular to the sealing strip, the blade is pressed by the compression spring to cut the sealing strip.

[0036] In a preferred embodiment of the present invention, a cavity is formed inside the cutter roller, and a central column is disposed inside the cavity, and the cutter roller is rotatably mounted on the central column;

[0037] A first magnetic strip is embedded on the side of the spindle facing the edge banding, and a second magnetic strip is embedded on the back of the blade, with the surfaces of the first magnetic strip and the second magnetic strip repelling each other.

[0038] A strip-shaped opening connecting to the cavity is provided at the center of the bottom of the limiting groove.

[0039] In a preferred embodiment of the present invention, the tool holder is vertically slidably mounted on the frame of the conveyor;

[0040] When the cutter roller rotates, the cutter holder moves vertically under the drive of an external force, causing the blade to cut the edge banding tape; and after the blade cuts the edge banding tape, the cutter holder returns to its original position under the drive of an external force.

[0041] The drive source for the tool holder is a cylinder.

[0042] As a preferred embodiment of the present invention, a fixed sleeve is provided inside the tool holder, a connecting sleeve is rotatably installed inside the fixed sleeve, and the connecting sleeve is fixedly installed at both ends of the roller shaft of the tool roller.

[0043] A cam guide post is provided on the inner wall of the fixed sleeve, and a reciprocating groove is provided on the outer wall of the connecting sleeve, and the cam guide post is slidably assembled in the reciprocating groove.

[0044] The roller shaft of the cutter roller is slidably mounted on the cutter holder, and the drive motor of the cutter roller is slidably mounted on the cutter holder.

[0045] Compared with the prior art, the present invention has the following advantages:

[0046] This invention employs a rolling cutter method. The measuring mechanism measures the spacer plate and calculates the position and moving speed of the fixed-distance joint between two adjacent gypsum boards. Based on the position and moving speed of the fixed-distance joint, the rolling cutter is activated in a timely manner to match the rotation speed of the fixed-distance joint. This allows the rolling cutter to accurately cut the edge banding at the middle of the fixed-distance joint without stopping the machine. Attached Figure Description

[0047] 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 introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0048] Figure 1 This is a schematic diagram of the automatic rolling and cutting system for gypsum board edge banding provided in an embodiment of the present invention;

[0049] Figure 2 This is a schematic diagram of the rolling mechanism of the automatic rolling cutting system for gypsum board edge banding provided in an embodiment of the present invention;

[0050] Figure 3 This is a schematic diagram of the cutter roller section of the automatic gypsum board edge banding tape cutting system provided in an embodiment of the present invention;

[0051] Figure 4 This is a schematic diagram of the blade portion of the automatic rolling cutter system for gypsum board edge banding provided in an embodiment of the present invention;

[0052] Figure 5 This is a schematic diagram of the spindle column structure of the automatic rolling and cutting system for gypsum board edge banding provided in an embodiment of the present invention;

[0053] Figure 6 This is a schematic diagram of the assembly of the fixing sleeve and connecting sleeve of the automatic rolling cutting system for gypsum board edge banding provided in an embodiment of the present invention.

[0054] The labels in the diagram represent the following:

[0055] 1- Fixed-distance conveying mechanism; 2- Measuring mechanism; 3- Rolling and cutting mechanism;

[0056] 11-Belt conveyor; 12-Conveyor; 21-Fixed frame; 22-Positioning and ranging sensor; 31-Tool holder; 32-Rolling cutter;

[0057] 111-Spare plate; 121-Feeding conveyor section; 122-Cutting conveyor section; 123-Discharge conveyor section; 124-Gap section; 311-Fixed sleeve; 312-Connecting sleeve; 313-Cam guide post; 314-Reciprocating groove;

[0058] 321-Cutter roller; 322-Blade; 323-Limiting groove; 324-Compression spring; 325-Cavity; 326-Spindle; 327-First magnetic strip; 328-Second magnetic strip; 329-Strip opening. Detailed Implementation

[0059] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0060] like Figure 1 and Figure 2 As shown, the present invention provides an automatic roll-cutting system for gypsum board edge banding, comprising:

[0061] The fixed-distance conveyor mechanism 1 includes two belt conveyors 11 located above and one conveyor 12 located below;

[0062] The belt conveyor 11 is provided with multiple partition plates 111, 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 maintained below the belt conveyor 11.

[0063] The conveyor 12 conveys multiple gypsum boards against the partition plate 111 in sequence to seal the edges, so that the partition plate 111 is sandwiched between two adjacent gypsum boards and a fixed-distance joint is formed between two adjacent edge-sealed gypsum boards. The width of the fixed-distance joint is equal to the thickness of the partition plate 111.

[0064] The measuring mechanism 2 includes a fixed frame 21 and two symmetrically arranged positioning and ranging sensors 22;

[0065] The fixed frame 21 is installed across the downstream frame of the conveyor 12, and the positioning and ranging sensor 22 is vertically oriented toward the belt conveyor 11 and installed on the fixed frame 21;

[0066] The positioning and ranging sensor 22 detects in real time the distance between the spacer 111 located at the bottom of the belt conveyor 11 and close to the positioning and ranging sensor 22 and the positioning and ranging sensor 22;

[0067] The rolling cutting mechanism 3 includes two tool holders 31 and two rolling cutting tools 32 driven by a motor;

[0068] Two tool holders 31 are respectively installed on the two side frames of the conveyor 32, and two rolling cutters 32 are respectively rotatably installed on the two tool holders 31, and the rotation axis of the rolling cutter 32 is perpendicular to the conveying surface of the conveyor 12.

[0069] The controller calculates the real-time speed of the spacer 111 by measuring the distance of the spacer 111 to time in real time using the positioning and ranging sensor 22, so as to obtain the moving speed of the fixed-distance seam.

[0070] The controller controls the rolling cutter 32 to start when the measurement value of the positioning distance sensor 22 reaches the preset value, and the rotation speed of the rolling cutter 32 changes dynamically according to the moving speed of the fixed-distance seam, so as to cut the sealing tape without stopping the conveyor 12.

[0071] The automatic rolling cutter system of this embodiment mainly uses the positioning and distance measuring sensor 22 of the measuring mechanism 2 to detect the spacer 111 in real time to obtain its position and moving speed, thereby obtaining the position and moving speed of the fixed-distance seam. When the fixed-distance seam moves to the set position (i.e., the measurement value of the positioning and distance measuring sensor 22 reaches the preset value), the controller can control the rolling cutter 32 of the rolling cutter 3 to rotate, and adjust the rotation speed of the rolling cutter 32 in real time according to the speed of the fixed-distance seam, so that the rolling cutter 32 can cut the edge banding at the fixed-distance seam at a rotation speed that matches the moving speed of the gypsum board, so as to accurately cut the edge banding, and the conveyor 12 does not need to stop.

[0072] Furthermore, the rotation speed of the rolling cutter 32 is adjusted in real time to match the moving speed of the gypsum board, thereby avoiding mutual interference between the rolling cutter 32 and the gypsum board conveyor.

[0073] Existing automatic edge banding cutting systems typically employ a gap-finding and stop-cutting method, which involves using sensors on the cutting blade to detect the gap between two adjacent gypsum boards and stopping the machine to cut after detecting the gap.

[0074] After the gypsum board stops being conveyed due to the gap, the cutting line of the blade is close to the side of the gap that is being conveyed, which makes it impossible to cut in the center and results in uneven lengths of the edge banding. Therefore, this automatic cutting system has both inaccurate cutting accuracy and reduced production efficiency due to the stoppage.

[0075] Therefore, compared with the existing automatic edge banding tape cutting system, the automatic edge banding tape rolling cutting system of this embodiment can determine the position and speed of the fixed-distance seam by detecting the position and moving speed of the spacer plate 111, and start the rolling cutting tool 32 in a timely manner according to the position and moving speed of the fixed-distance seam to match the rotation speed of the fixed-distance seam, so that the rolling cutting tool 32 can accurately cut the edge banding tape at the middle of the fixed-distance seam, and the conveyor 12 does not need to be stopped, thus improving production efficiency.

[0076] The preset values ​​are obtained through multiple on-site tests to ensure that the drive motor of the rolling cutter 32 (preferably a stepper motor, which is precise and easy to control) does not experience sudden speed increases (easily losing steps) or excessively slow speeds (excessive adjustment time, resulting in excessive energy consumption).

[0077] The rolling cutter 32 gradually decelerates before cutting the edge banding tape, and gradually accelerates after cutting the edge banding tape.

[0078] The specific reasons are as follows:

[0079] Since the rolling cutter 32 rotates while the edge banding moves linearly, if the edge banding moves at a constant speed, the horizontal movement speed of the cutting contact point between the rolling cutter 32 and the edge banding needs to be consistent with the movement speed of the edge banding to match the rolling cutter 32's speed.

[0080] The components of the linear velocity of the rotating cutting contact point in the horizontal and vertical directions change with the rotation angle. Let the component of the linear velocity of the cutting contact point in the horizontal direction be equal to the moving speed of the edge sealing tape (the moving speed of the fixed-distance seam).

[0081] Since the angle between the linear velocity of the cutting contact point and the horizontal component velocity gradually decreases during the process from contact to cutting, the horizontal component velocity gradually increases. In order to make the horizontal component velocity of the cutting contact point equal to the moving speed of the sealing tape, it is necessary to reduce the rotation speed of the rolling cutter 32.

[0082] As the angle between the linear velocity at the cutting contact point and the horizontal component velocity gradually increases during the process from cutting to leaving the edge banding, the horizontal component velocity gradually decreases. In order to make the horizontal component velocity at the cutting contact point equal to the moving speed of the edge banding, the rotational speed of the rolling cutter 32 needs to be increased.

[0083] The specific calculation formula is as follows:

[0084] Rotational speed = linear velocity / 2πR = (sliding speed of the sealing tape / cosine of the rotation angle) / 2πR.

[0085] The cosine of the rotation angle is: the cosine of the deflection angle of the cutting contact point (the deflection angle is based on the perpendicular line from the rotation axis of the rolling cutter 32 to the edge banding).

[0086] Two gypsum boards are separated by a partition 111 and then edge-sealed. The edge-sealing is then cut off. Therefore, the edge-sealing is also located at the conveyor 12. Before edge-sealing, it is necessary to ensure that the two adjacent gypsum boards are clamped by the partition, so that the gap between the two adjacent gypsum boards is fixed to form a fixed-distance seam, thereby improving the cutting accuracy.

[0087] Therefore, in order to ensure that during the transportation process, two adjacent gypsum boards can be clamped together with the spacer 111 and the edge sealing is completed before sealing, the following preferred embodiments are provided.

[0088] like Figure 1 As shown, the conveyor 12 includes a feeding conveyor section 121, a cutting conveyor section 122, and a discharging conveyor section 123;

[0089] The belt conveyor 11 is located above the cutting conveyor section 122, and both ends of the belt conveyor 11 extend above the feeding conveyor section 121 and the discharging conveyor section 123, respectively.

[0090] The feeding conveying section 121, the cutting conveying section 122 and the discharging conveying section 123 are spaced at equal intervals to form a gap section 124, and the gypsum board conveyed by the feeding conveying section 121 contacts the partition plate 111 above the gap section 124 located between the feeding conveying section 121 and the cutting conveying section 122.

[0091] Among them, the feeding conveyor section 121, the cutting conveyor section 122 and the discharging conveyor section 123 can work independently.

[0092] Specifically, the feeding conveyor section 121 can convey the gypsum board to the cutting conveyor plate 122, and above the gap section 124 between the feeding conveyor section 121 and the cutting conveyor plate 122, the gypsum board contacts the partition plate 111, thereby pushing the partition plate 111 to move.

[0093] Therefore, belt conveyor 11 does not require a power source to drive it, making it more energy-efficient.

[0094] The two gypsum boards holding the partition plate 111 are edge-sealed at the front end of the cutting conveyor section 122, and then conveyed to the gap section 123 between the cutting conveyor section 122 and the discharge conveyor section 123 where the edge-sealing strip is cut off. The gypsum boards with the edge-sealing strip cut off are then sent out by the discharge conveyor section 123.

[0095] Therefore, the feeding conveyor section 121, the cutting conveyor section 122, and the discharging conveyor section 123 can be conveyed at the same speed to improve stability and reduce the difficulty of designing the cutting control program.

[0096] However, in the actual production process, the upstream gypsum board cannot guarantee to be fed at the same speed, while the downstream process urgently needs to quickly assemble and package the gypsum board with the edge banding.

[0097] Therefore, the conveying speed of gypsum board in the upstream and downstream processes is not equal to the conveying speed of gypsum board at the edge sealing point. In order to make the automatic rolling cutting system more compatible with the actual upstream and downstream processes of production, the following preferred embodiments are provided.

[0098] like Figure 1 As shown, the length of the cutting conveyor section 122 is less than the total length of the multiple gypsum boards conveyed thereon, and the total length of the multiple gypsum boards conveyed on the cutting conveyor section 122 is less than the distance between the feeding conveyor section 121 and the discharging conveyor section 123.

[0099] In this process, after the gypsum board on the feeding conveying section 121 is conveyed and attached to the partition plate 111, the feeding conveying section 121 runs at the same speed as the cutting conveying section 122 and the discharging conveying section 123.

[0100] After the cutting blade 32 starts working, the discharge conveying section 123 accelerates its operation. After the cutting blade 32 starts working, the feed conveying section 121 speeds up and adjusts its running speed in real time according to the moving speed of the fixed-distance seam, so as to quickly attach the gypsum board to the partition plate 111.

[0101] Specifically, by designing the length of the cutting conveyor section 122, and the design of the gap section 124 between the feeding conveyor section 121 and the discharging conveyor section 123 and the cutting conveyor section 122, the gypsum board is made to contact the partition plate 111 in the gap section 124 and to separate from the partition plate 111 in the gap section 124, thereby avoiding friction between the gypsum board feeding and discharging and the cutting conveyor 122.

[0102] Furthermore, the separate design of the feeding conveying section 121, the cutting conveying section 122, and the discharging conveying section 123 allows for independent control of their conveying speeds, enabling them to better match the conveying speeds of the upstream and downstream gypsum boards.

[0103] When the gypsum board and the partition board 111 are in contact without being sealed at the edges, and when the gypsum board and the partition board 111 are sealed at the edges without being cut, the feeding conveyor section 121, the cutting conveyor section 122 and the discharging conveyor section 123 maintain the same conveying speed, reducing the fluctuation of the edge sealing belt conveying speed, thereby making the rotation speed of the rolling cutter 32 more stable and the cutting more precise.

[0104] The rolling cutter 32 is an important component for cutting the edge banding tape. Due to the rolling cutting method, the rolling cutter needs to cut the edge banding tape with pressure. Therefore, the rolling cutter 32 needs to be sharp enough. The following preferred embodiment is provided.

[0105] like Figure 2 As shown, the rolling cutter 32 includes a cutter roller 321 and a blade 322;

[0106] The blade 322 is disposed on the side wall of the cutter roller 321, and the distance from the cutting edge of the blade 322 to the rotation axis of the cutter roller 321 is greater than the distance from the gypsum board edge banding to the rotation axis of the cutter roller 321.

[0107] Among them, blade 322 is a peak blade or a single-sided blade.

[0108] Specifically, the blade of blade 322 needs to be able to pass through the edge banding tape. Therefore, the distance from the blade of blade 322 to the axis of rotation of the blade roller 321 needs to be greater than the distance from the edge banding tape of the gypsum board to the axis of rotation of the blade roller 321.

[0109] To improve the sharpness of the blade 322, a peak blade or a single-sided blade is selected to reduce the blade angle, with a single-sided blade being preferred. The vertical surface of the single-sided blade faces the direction of rotation so that the blade 322 maintains a larger cutting angle when it contacts the edge banding tape.

[0110] Therefore, the blade 322 can quickly cut the edge banding tape, reduce the pressure of the blade 322 on the edge banding tape, and prevent the edge banding tape from cracking due to excessive pressure during cutting, resulting in an uneven cut.

[0111] If only one blade 322 is used for cutting, the blade 322 needs to rotate one revolution for each cut, which means the motor driving the cutter roller 321 needs to rotate at least one revolution, resulting in increased cutting energy consumption. Therefore, the following preferred embodiment is provided.

[0112] like Figure 3 As shown, there are multiple blades 322, and the multiple blades 322 are installed at equal intervals around the roller surface of the cutter roller 321;

[0113] The distance between the blades of two adjacent blades 322 and the distance between the rotation axis of the cutter roller 321 is less than the distance from the gypsum board edge banding to the rotation axis of the cutter roller 321;

[0114] The included angle between two adjacent blades 322 is an acute angle.

[0115] Specifically, multiple blades 322 are provided on the cutter roller 321, and the distance between two adjacent blades 322 is such that the distance between the blades of the two blades 322 and the distance between the rotation axis of the cutter roller 321 is less than the distance from the gypsum board edge banding to the rotation axis of the cutter roller 321.

[0116] That is, two adjacent blades 322 can be symmetrically distributed on one side of the edge banding, so that each time the edge banding is cut, only the blade roller 321 needs to rotate by an angle, which is the included angle between the two adjacent blades 322.

[0117] Furthermore, setting this included angle to an acute angle can increase the cutting angle when the blade 322 contacts the edge banding tape, thereby quickly cutting off the edge banding tape. In addition, the lateral pressure on the blade 322 is reduced (as the cutting angle increases, the component of the reaction force perpendicular to the blade 322 decreases), thus preventing the blade 322 from breaking.

[0118] During the cutting process, the blade 322 contacts the edge banding as a line. Since the edge banding has a certain degree of flexibility, it is difficult to cut directly. The edge banding needs to be pressed down until it is concave to a certain extent before it can be cut. During this process, the edge banding is prone to being pulled apart, resulting in uneven cut edges.

[0119] Therefore, in order for the blade 322 to easily cut the edge banding tape without breaking it, the following preferred embodiments are provided.

[0120] like Figure 2 and Figure 3 As shown, the blade length of blade 322 is greater than the width of the edge banding tape, and the blade of blade 322 is either inward or outward arc-shaped.

[0121] The blade edge and the back of the blade 322 are transitioned by a stepped structure, and the distance from the connection point of the stepped structure of the blade 322 to the rotation axis of the blade roller 321 is less than the distance from the edge banding of the plasterboard to the rotation axis of the blade roller 321.

[0122] Specifically, the blade 322 has an outer arc or inner arc design, which reduces the contact area between the blade 322 and the edge banding tape, thereby increasing the pressure of the blade 322 on the edge banding tape. This allows the edge banding tape to be easily cut from the middle to both sides (outer arc blade 322) or from both sides to the middle (inner arc blade 322), preventing the edge banding tape from cracking due to excessive tension caused by pressure indentation.

[0123] Furthermore, the 322 blade adopts a two-section design, with a stepped structure between the blade edge and the back of the blade, thereby reducing the width of the blade edge and increasing the width of the back of the blade to reduce the leverage effect of the blade edge and prevent the blade edge from breaking under pressure or rolling.

[0124] During the cutting process, the aforementioned blade 322 may cut the edge banding before it is close to the vertical edge banding. In this process, the pressure and cutting force on the contact area between the edge banding and the cutter has a large tilt angle, which will cause the tension on the upstream edge banding to be greater than that on the downstream edge banding. Therefore, the edge banding may still be pulled apart due to uneven force on both sides of the cutting line.

[0125] Therefore, in order to enable the blade 322 to cut the edge banding strip in a near-perpendicular manner to balance the tension on both sides of the edge banding strip, the following preferred embodiments are provided.

[0126] like Figure 4 As shown, multiple limiting slots 323 are provided on the cutter roller 321, and multiple blades 322 are slidably installed in the limiting slots 323.

[0127] Multiple connecting blades 322 and a compression spring 324 at the bottom of the limiting slot 323 are provided inside the limiting slot 323;

[0128] In this process, after the blade 322 rotates with the cutter roller 321 and is pressed by the sealing strip, the blade 322 compresses the compression spring 324 so that when the blade 322 is nearly perpendicular to the sealing strip, the blade 322 is pressed by the compression spring 324 to cut the sealing strip.

[0129] Specifically, after being subjected to the reaction force of the edge banding tape, the blade 322 can be pressed into the limiting groove 323. As the blade 322 rotates, the reaction force it receives gradually increases, and the elastic force of the compression spring 324 gradually increases. Thus, when the blade 322 is close to or perpendicular to the edge banding tape, the pressure (elastic force of the compression spring 324) applied by the blade 322 to the edge banding tape can cut it off.

[0130] At this time, the cutting angle between the blade 322 and the edge banding is relatively small, which reduces the tension difference on both sides of the edge banding cutting line and avoids the edge banding being pulled apart due to excessive tension on one side.

[0131] Since the blade 322 is a long strip with a length greater than the width of the sealing tape, multiple compression springs 324 need to be set to evenly bear the pressure and avoid the blade 322 from becoming uneven.

[0132] However, the elastic design of multiple compression springs 324 makes it more difficult for the blade 322 to cut the edge banding tape when it is nearly perpendicular or perpendicular to the edge banding tape.

[0133] Therefore, in order to reduce the difficulty of cutting the edge banding tape when the blade 322 is nearly perpendicular or perpendicular to the edge banding tape, the following preferred embodiments are provided.

[0134] like Figure 5 As shown, a cavity 325 is formed inside the cutter roller 321, and a spindle 326 is provided inside the cavity 325. The cutter roller 321 is rotatably mounted on the spindle 326.

[0135] A first magnetic strip 327 is embedded on the side of the spindle 326 facing the edge banding, and a second magnetic strip 328 is embedded on the back of the blade 322, with the surfaces of the first magnetic strip 327 and the second magnetic strip 328 repelling each other.

[0136] Among them, a strip-shaped opening 329 connecting the cavity 325 is provided in the center of the bottom of the limiting slot 323.

[0137] Specifically, by setting a first magnetic strip 327 on the side of the spindle 326 inside the cutter roller 321 facing the edge banding, and setting a second magnetic strip 328 on the back of the blade 322, when the blade 322 rotates with the cutter roller 321 to align with the first magnetic strip 327, the repulsive force of the first magnetic strip 327 on the second magnetic strip 328 can push the blade 322 towards the edge banding and cut the edge banding, thereby achieving that the blade 322 cuts the edge banding close to or perpendicular to the edge banding.

[0138] Therefore, the total ultimate compression force of the multiple compression springs 324 only needs to be insufficient to make the blade 322 cut the sealing tape, greatly reducing the design difficulty. Furthermore, it solves the problem of the compression springs 324 losing their elasticity due to long-term operation, thus failing to push the blade 322 into position.

[0139] Therefore, if only the compression spring 324 is used to push the cutter, it will become impossible to cut after long-term use.

[0140] Furthermore, a strip-shaped opening 329 is provided at the bottom of the limiting groove 323 to avoid the material of the cutter roller 321 interfering with the repulsive force of the first magnetic strip 327 on the second magnetic strip 328, thereby improving the reliability of the operation.

[0141] In the aforementioned embodiments, when using a straight blade 322 to cut the edge banding tape, the edge banding tape is prone to tearing. Therefore, another embodiment is provided below to avoid tearing the edge banding tape when using a straight blade 322 to cut it.

[0142] like Figure 2 As shown, the tool holder 31 is vertically slidably mounted on the frame of the conveyor 12;

[0143] When the cutter roller 321 rotates, the cutter holder 31 moves vertically under the drive of an external force, causing the blade 322 to cut the edge banding tape; and after the blade 322 cuts the edge banding tape, the cutter holder 31 returns to its original position under the drive of an external force.

[0144] The tool holder 31 is driven by a cylinder.

[0145] Specifically, the cutter holder 31 can push the cutter roller 321 upward when the cutter roller 321 rotates and the blade 322 cuts, so that the blade 322 cuts the edge banding. The edge banding can be cut with less pressure applied by the blade 322, thus avoiding the edge banding from being torn apart due to excessive tension.

[0146] Therefore, by changing the rolling cut to a rolling trim, the straight blade 322 is also able to quickly cut the edge banding and keep the cut clean.

[0147] The movement of the tool holder 31 requires the drive of a cylinder, which in turn requires the controller to work in conjunction with the control program and the motor that drives the tool roller 321 to rotate. This increases energy consumption and also increases the difficulty of program design.

[0148] Therefore, a preferred embodiment is provided below, which eliminates the need for an additional drive source to drive the tool holder 31.

[0149] like Figure 2 and Figure 6 As shown, a fixed sleeve 311 is provided inside the tool holder 31, and a connecting sleeve 312 is rotatably installed inside the fixed sleeve 311, and the connecting sleeve 312 is fixedly installed at both ends of the roller shaft of the tool roller 321.

[0150] A cam guide post 313 is provided on the inner wall of the fixed sleeve 311, and a reciprocating groove 314 is provided on the outer wall of the connecting sleeve 312, and the cam guide post 313 is slidably assembled in the reciprocating groove 314.

[0151] The roller shaft of the cutter roller 321 is slidably mounted on the cutter holder 31, and the drive motor of the cutter roller 321 is slidably mounted on the cutter holder 31.

[0152] Specifically, by utilizing the cam guide post 313 of the fixed sleeve 311 and the reciprocating groove 314 of the connecting sleeve 312, the connecting sleeve 312 can slide axially back and forth with the fixed sleeve 311 when it rotates with the cutter roller 321, thereby enabling the cutter roller 321 to move axially back and forth.

[0153] Furthermore, for every rotation of the cutter roller 321 by an angle (the angle between the two blades 322), the fixed sleeve 311 and the connecting sleeve 312 slide back and forth once, that is, the cutter roller 321 moves back and forth axially once, thereby realizing the sliding cutting and resetting of the blades 322.

[0154] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. An automatic roller cutting system for gypsum board edge banding, characterized in that, include: The fixed-distance conveying mechanism (1) includes two belt conveyors (11) located above and one conveyor (12) located below; The belt conveyor (11) is provided with a plurality of partition plates (111), 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 maintained below the belt conveyor (11). The conveyor (12) conveys multiple gypsum boards against the partition plate (111) in sequence to seal the edges, so that the partition plate (111) is sandwiched between two adjacent gypsum boards and a fixed-distance seam is formed between two adjacent edge-sealed gypsum boards. The width of the fixed-distance seam is equal to the thickness of the partition plate (111). The measuring mechanism (2) includes a fixed frame (21) and two symmetrically arranged positioning and ranging sensors (22); The fixed frame (21) is mounted across the downstream frame of the conveyor (12), and the positioning and ranging sensor (22) is perpendicular to the belt conveyor (11) and mounted on the fixed frame (21); The positioning and ranging sensor (22) detects in real time the distance between the spacer (111) located at the bottom of the belt conveyor (11) and close to the positioning and ranging sensor (22) and the positioning and ranging sensor (22); The rolling cutting mechanism (3) includes two tool holders (31) and two rolling cutting tools (32) driven by a motor; The two tool holders (31) are respectively mounted on the two side frames of the conveyor (12), and the two rolling cutters (32) are respectively rotatably mounted on the two tool holders (31), and the rotation axis of the rolling cutter (32) is perpendicular to the conveying surface of the conveyor (12); The controller measures the distance of the spacer plate (111) over time in real time using the positioning and ranging sensor (22), and calculates the real-time speed of the spacer plate (111) to obtain the moving speed of the fixed-distance seam. The controller controls the rolling cutter (32) to start when the measurement value of the positioning distance sensor (22) reaches the preset value, and the rotation speed of the rolling cutter (32) changes dynamically according to the moving speed of the fixed-distance seam, so as to cut the sealing strip without stopping the conveyor (12).

2. The automatic rolling and cutting system for gypsum board edge banding according to claim 1, characterized in that, The conveyor (12) includes a feeding conveyor section (121), a cutting conveyor section (122), and a discharging conveyor section (123); The belt conveyor (11) is located above the cutting conveyor section (122), and both ends of the belt conveyor (11) extend above the feeding conveyor section (121) and the discharging conveyor section (123), respectively. The feeding conveying section (121), the cutting conveying section (122), and the discharging conveying section (123) are sequentially spaced at equal intervals to form a gap section (124), and the gypsum board conveyed by the feeding conveying section (121) contacts the spacer plate (111) above the gap section (124) located between the feeding conveying section (121) and the cutting conveying section (122); The feeding conveying section (121), the cutting conveying section (122), and the discharging conveying section (123) can operate independently.

3. The automatic rolling and cutting system for gypsum board edge banding according to claim 2, characterized in that, The length of the cutting conveyor section (122) is less than the total length of the multiple gypsum boards conveyed thereon, and the total length of the multiple gypsum boards conveyed on the cutting conveyor section (122) is less than the distance between the feeding conveyor section (121) and the discharging conveyor section (123); Wherein, after the gypsum board on the feeding conveying section (121) is conveyed and attached to the partition plate (111), the feeding conveying section (121) runs at the same speed as the cutting conveying section (122) and the discharging conveying section (123); The discharge conveying section (123) accelerates after the rolling cutter (32) is working, and the feed conveying section (121) speeds up and adjusts its running speed in real time according to the moving speed of the fixed-distance seam after the rolling cutter (32) is working, so as to quickly attach the gypsum board to the partition plate (111).

4. An automatic rolling and cutting system for gypsum board edge banding according to any one of claims 1-3, characterized in that, The rolling cutter (32) includes a cutter roller (321) and a blade (322); The blade (322) is disposed on the side wall of the cutter roller (321), and the distance from the cutting edge of the blade (322) to the rotation axis of the cutter roller (321) is greater than the distance from the gypsum board edge banding to the rotation axis of the cutter roller (321). The blade (322) is a peak blade or a single-sided blade.

5. The automatic rolling and cutting system for gypsum board edge banding according to claim 4, characterized in that, The blade (322) is provided in multiples, and the multiple blades (322) are installed at equal intervals around the roller surface of the cutter roller (321); The distance between the blades of two adjacent blades (322) and the distance between the rotation axis of the blade roller (321) is less than the distance from the gypsum board edge banding to the rotation axis of the blade roller (321); The included angle between two adjacent blades (322) is an acute angle.

6. The automatic rolling and cutting system for gypsum board edge banding according to claim 5, characterized in that, The blade (322) has a blade length greater than the width of the sealing strip, and the blade (322) has an inner arc shape or an outer arc shape. The blade (322) has its cutting edge and back edge connected by a stepped structure, and the distance from the connection point between the stepped structure of the blade (322) and the cutting edge to the rotation axis of the cutter roller (321) is less than the distance from the grease board sealing strip to the rotation axis of the cutter roller (321).

7. The automatic rolling and cutting system for gypsum board edge banding according to claim 6, characterized in that, Multiple limiting slots (323) are provided on the cutter roller (321), and multiple blades (322) are slidably installed in the limiting slots (323); Multiple compression springs (324) are provided in the limiting slot (323) to connect the blade (322) and the bottom of the limiting slot (323); Wherein, after the blade (322) rotates with the cutter roller (321) and is pressed by the sealing strip, the blade (322) presses the compression spring (324) so ​​that when the blade (322) is nearly perpendicular to the sealing strip, the blade (322) is pressed by the compression spring (324) to cut the sealing strip.

8. The automatic roll-cutting system for gypsum board edge banding according to claim 7, characterized in that, A cavity (325) is formed inside the cutter roller (321), and a spindle (326) is provided inside the cavity (325). The cutter roller (321) is rotatably mounted on the spindle (326). A first magnetic strip (327) is embedded on the side of the spindle (326) opposite to the edge banding, and a second magnetic strip (328) is embedded on the back of the blade (322), and the surfaces of the first magnetic strip (327) and the second magnetic strip (328) repel each other. Among them, a strip-shaped opening (329) connecting the cavity (325) is provided in the center of the bottom of the limiting groove (323).

9. The automatic rolling and cutting system for gypsum board edge banding according to claim 4, characterized in that, The tool holder (31) is vertically and slidably mounted on the frame of the conveyor (12); When the cutter roller (321) rotates, the cutter holder (31) moves vertically under the drive of an external force, so that the blade (322) cuts the edge banding tape; And after the blade (322) cuts the edge banding tape, the blade holder (31) is reset under external force. The drive source for the tool holder (31) is a cylinder.

10. The automatic rolling and cutting system for gypsum board edge banding according to claim 9, characterized in that, A fixed sleeve (311) is provided inside the cutter holder (31), and a connecting sleeve (312) is rotatably installed inside the fixed sleeve (311), and the connecting sleeve (312) is fixedly installed at both ends of the roller shaft of the cutter roller (321); A cam guide post (313) is provided on the inner wall of the fixed sleeve (311), and a reciprocating groove (314) is provided on the outer wall of the connecting sleeve (312), and the cam guide post (313) is slidably assembled in the reciprocating groove (314); The roller shaft of the cutter roller (321) is slidably mounted on the cutter holder (31), and the drive motor of the cutter roller (321) is slidably mounted on the cutter holder (31).

Images