A high-precision automatic side cutting system for gypsum board edge banding

Abstract

The application discloses a high-precision automatic side cutting system for edge sealing tape of gypsum board, which comprises a fixed-distance conveying mechanism, a cutting mechanism and a distance measuring mechanism; the linear slide table of the cutting mechanism controls the movement of the cylinder cutter of the cutting mechanism to the position aligned with the spacing plate according to the distance measurement value of the spacing plate of the fixed-distance conveying mechanism by the positioning distance measuring sensor of the distance measuring mechanism, so as to cut the edge sealing tape from bottom to top in the middle of the fixed-distance gap between the two adjacent gypsum boards. The application utilizes the positioning and fixed-distance gap and side cutting mode, measures and positions the spacing plate by the positioning distance measuring sensor to obtain the position of the fixed-distance gap, thereby controls the linear slide table to move the cylinder cutter to the middle of the fixed-distance gap for cutting from bottom to top, so that the tail length of the edge sealing tape is consistent and the fracture is neat.

Description

Technical Field

[0001] This invention relates to the field of gypsum board production and manufacturing, and specifically to a high-precision automatic side-cutting system for gypsum board edge banding. Background Technology

[0002] Gypsum board edge banding is used to seal the exposed sidewalls of gypsum board with edge banding tape. During the edge banding process, in order to maintain the continuity of production, all gypsum boards are usually conveyed in sequence at equal distances and are uniformly edge banded by the edge banding machine. After the edge banding is completed, the edge banding tape connects two adjacent gypsum boards. At this time, the edge banding tape needs to be cut to separate the gypsum boards.

[0003] Currently, the commonly used automatic cutting system for cutting gypsum board edge banding usually adopts a seam-finding cutting system. This system uses a cutter that moves horizontally along the gypsum board conveying direction to detect the gap between two adjacent gypsum boards through a photoelectric sensor installed on it. This prevents the cutter from pressing and cutting the edge banding at the gap perpendicular to the edge banding surface after detecting the gap.

[0004] However, this type of automatic edge banding cutting system, when searching for the seam, only moves to one side to obtain a light signal. This means the cutter cannot always stop in the center of the seam, resulting in inconsistent lengths of the cut edge banding and affecting the quality of the edge banding. Especially when using a pressure cut at a non-centered position, the inconsistent lengths on both sides of the cut can cause uneven tension on both sides of the edge banding at the cut line, leading to breakage (asymmetrical pressure cutting causes unequal angles between the edge banding and the cutter on both sides of the cut line, resulting in uneven pressure on the edge banding), resulting in uneven cuts.

[0005] Therefore, existing automatic seam-finding and cutting systems for gypsum board edge banding are difficult to cut in the middle of the seam between two adjacent gypsum boards, resulting in uneven cuts and irregular edges. Summary of the Invention

[0006] The purpose of this invention is to provide a high-precision automatic side-cutting system for gypsum board edge banding, in order to solve the technical problem in the prior art where it is difficult to place the cutter in the middle of the gap between two adjacent gypsum boards to cut the edge banding, resulting in uneven lengths of the edge banding ends and irregular cuts.

[0007] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution:

[0008] A high-precision automatic side-cutting system for gypsum board edge banding includes:

[0009] A fixed-distance conveyor mechanism includes two belt conveyors located above and one conveyor located below;

[0010] The belt conveyor is equipped with multiple partition plates, the distance between two adjacent partition plates is equal to the width of the gypsum board along the conveying direction, and at least two partition plates are always maintained below the belt conveyor;

[0011] 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.

[0012] The cutting mechanism includes two linear slides and two cylinder cutters;

[0013] The two linear slides are respectively installed in parallel on the two side frames of the conveyor, and the two cylinder cutters are respectively installed vertically on the two linear slides;

[0014] The linear slide is used to control the position of the cylinder cutter so that the cylinder cutter cuts the edge banding between two adjacent gypsum boards in the middle of the fixed-distance seam;

[0015] The ranging mechanism includes a fixed frame and two symmetrically arranged positioning and ranging sensors;

[0016] 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;

[0017] The positioning and ranging sensor detects in real time the position of the spacer plate located at the bottom of the belt conveyor and close to the positioning and ranging sensor;

[0018] When the measured value of the positioning and ranging sensor is less than a preset value, the conveyor stops conveying, and after the conveyor stops conveying, the positioning and ranging sensor measures the position of the partition plate again to locate the position of the fixed-distance seam.

[0019] The linear slide controls the cylinder cutter to move to the middle of the fixed-distance seam based on the remeasurement value of the positioning and ranging sensor, and the cylinder cutter cuts the sealing strip from bottom to top.

[0020] As a preferred embodiment of the present invention, the conveyor includes a feeding conveying section, a cutting conveying section, and a discharging conveying section;

[0021] The belt conveyor is located above the cutting conveyor section, with one end of the belt conveyor extending above the feeding conveyor section and the other end of the belt conveyor approaching the top of the discharging conveyor section;

[0022] The feeding conveyor section, the cutting conveyor section, and the discharging conveyor section are controlled independently, and the intervals between the feeding conveyor section, the cutting conveyor section, and the discharging conveyor section are equal.

[0023] As a preferred embodiment of the present invention, the cylinder cutter includes a linear cylinder and a wide-back cutter;

[0024] The wide back cutter is installed at the end of the cylinder rod of the linear cylinder, and one end of the wide back cutter is located outside the linear cylinder and below the plasterboard.

[0025] Wherein, the length of the wide back cutter extending beyond the linear cylinder is greater than the thickness of the edge sealing strip.

[0026] As a preferred embodiment of the present invention, two feedback ranging sensors are symmetrically arranged on the fixed frame, and the feedback ranging sensors are perpendicularly oriented toward the back of the wide-back cutter.

[0027] The sensing end face of the feedback ranging sensor and the sensing end face of the positioning ranging sensor are located on the same plane;

[0028] The thickness of the back of the wide-back cutter is equal to the thickness of the spacer plate.

[0029] As a preferred embodiment of the present invention, two vertically arranged linear guide rails are symmetrically arranged on the fixed frame, and the two feedback ranging sensors are respectively mounted on the sliders of the two linear guide rails;

[0030] The upper limit of the linear guide rail is higher than the surface of the gypsum board, and the lower limit of the linear guide rail is lower than the bottom surface of the gypsum board.

[0031] The linear guide rail moves synchronously with the linear cylinder under the drive of an external force.

[0032] As a preferred embodiment of the present invention, a synchronizing rod is provided on the slider of the linear guide rail, the other end of the synchronizing rod is installed on the cylinder rod of the linear cylinder, and the synchronizing rod is a multi-section telescopic structure;

[0033] An upper sensor and a lower sensor are respectively installed at the upper and lower ends of the linear guide rail;

[0034] When the slider of the linear guide rail contacts the upper sensor, the collimator of the feedback ranging sensor is at the same height as the surface of the gypsum board.

[0035] Alternatively, when the slider of the linear guide rail contacts the lower sensor, the collimator of the feedback ranging sensor is lower than the bottom surface of the gypsum board.

[0036] As a preferred embodiment of the present invention, a horizontal cylinder facing the plasterboard is provided at the end of the linear cylinder, and one end of the wide back cutter is mounted on the cylinder rod of the horizontal cylinder.

[0037] The horizontal cylinder and the linear cylinder operate synchronously, or the horizontal cylinder operates after the linear cylinder.

[0038] As a preferred embodiment of the present invention, a cutting pressure sensor is provided at the end of the cylinder rod of the horizontal cylinder, and the wide back cutter is mounted on the cutting pressure sensor.

[0039] The horizontal cylinder operates when the value sensed by the cutting pressure sensor exceeds a threshold.

[0040] In a preferred embodiment of the present invention, a support is provided at the end of the cylinder rod of the horizontal cylinder, and the wide back cutter is rotatably mounted on the support;

[0041] The cutting pressure sensor is installed at the end of the cylinder rod of the horizontal cylinder and above the wide back cutter, and abuts against the end side of the wide back cutter;

[0042] Wherein, the length of the wide back cutter extending beyond the support is greater than the length of the wide back cutter from the support to the cutting pressure sensor.

[0043] As a preferred embodiment of the present invention, the end of the wide back cutter away from the horizontal cylinder and the upper side are both provided with cutting edges, and the end cutting edge and the upper cutting edge of the wide back cutter are rounded.

[0044] Compared with the prior art, the present invention has the following advantages:

[0045] This invention utilizes a positioning and spacing seam and lateral cutting method. The positioning and distance measuring sensor measures and positions the spacer to obtain the position of the spacing seam, thereby controlling the linear slide to move the cylinder cutter to the middle of the spacing seam for bottom-up cutting, so that the edge banding tape has a consistent tail length and a neat cut. Attached Figure Description

[0046] 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.

[0047] Figure 1 This is a schematic diagram of the high-precision automatic side-cutting system for gypsum board edge banding provided in an embodiment of the present invention;

[0048] Figure 2 This is a schematic diagram of the cutting mechanism of the high-precision automatic side-cutting system for gypsum board edge banding provided in an embodiment of the present invention.

[0049] Figure 3 This is a schematic diagram of the cylinder cutter part of the high-precision automatic side-cutting system for gypsum board edge banding provided in an embodiment of the present invention;

[0050] Figure 4 This is a schematic diagram of the feedback ranging sensor position of the high-precision automatic side-cutting system for gypsum board edge banding provided in an embodiment of the present invention;

[0051] Figure 5 This is a schematic diagram of the synchronous rod part of the high-precision automatic side-cutting system for gypsum board edge banding provided in an embodiment of the present invention;

[0052] Figure 6 This is a schematic diagram of the linear guide rail position of the high-precision automatic side-cutting system for gypsum board edge banding provided in an embodiment of the present invention;

[0053] Figure 7 This is a schematic diagram of the horizontal cylinder section of the high-precision automatic side-cutting system for gypsum board edge banding provided in an embodiment of the present invention.

[0054] Figure 8 This is a schematic diagram of the wide back cutter section of the high-precision automatic side-cutting system for gypsum board edge banding provided in an embodiment of the present invention.

[0055] The labels in the diagram represent the following:

[0056] 1-Fixed distance conveying mechanism; 2-Cutting mechanism; 3-Distance measuring mechanism;

[0057] 11-Belt conveyor; 12-Conveyor; 21-Linear slide; 22-Cylinder cutter; 31-Fixed frame; 32-Positioning and ranging sensor; 33-Feedback ranging sensor; 34-Linear guide rail;

[0058] 111-Spacing plate; 121-Feeding conveyor section; 122-Cutting conveyor section; 123-Discharge conveyor section; 221-Linear cylinder; 222-Wide back cutter; 223-Horizontal cylinder; 224-Cutting pressure sensor; 225-Support; 341-Synchronizing rod; 342-Upper sensor; 343-Lower sensor. 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 As shown, the present invention provides a high-precision automatic side-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 width 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 cutting mechanism 2 includes two linear slides 21 and two cylinder cutters 22;

[0065] Two linear slides 21 are installed parallel to each other on the two side frames of the conveyor 12, and two cylinder cutters 22 are installed vertically on the two linear slides 21.

[0066] The linear slide 21 is used to control the position of the cylinder cutter 22 so that the cylinder cutter 22 cuts the edge banding between two adjacent gypsum boards in the middle of the fixed-distance seam;

[0067] The ranging mechanism 3 includes a fixed frame 31 and two symmetrically arranged positioning and ranging sensors 32;

[0068] The fixed frame 31 is installed across the downstream frame of the conveyor 12, and the positioning and ranging sensor 32 is vertically oriented toward the belt conveyor 11 and installed on the fixed frame 31;

[0069] The positioning and ranging sensor 32 detects the position of the spacer 111 located at the bottom of the belt conveyor 11 and close to the positioning and ranging sensor 32 in real time;

[0070] When the measured value of the positioning and ranging sensor 32 is less than the preset value, the conveyor 12 stops conveying, and after the conveyor 12 stops conveying, the positioning and ranging sensor 32 measures the position of the partition plate 111 again to locate the position of the fixed-distance seam.

[0071] Based on the remeasurement value of the positioning and ranging sensor 32, the linear slide 21 controls the cylinder cutter 22 to move to the middle of the fixed-distance seam, and the cylinder cutter 22 cuts the sealing strip from bottom to top.

[0072] The automatic side-cutting system of this embodiment mainly utilizes the spacer plate 111 of the belt conveyor 11 to transport multiple gypsum boards sequentially at a fixed interval. When the positioning and distance measuring sensor 32 detects that the spacer plate 111 has reached a preset value, the conveyor 12 can stop and keep the fixed-distance seam between two adjacent gypsum boards in the cutting area. The positioning and distance measuring sensor 32 can measure and confirm the position of the spacer plate 111 again, and then feed back the confirmed position. The linear slide table 21 can drive the cylinder cutter 22 to move horizontally to the middle of the fixed-distance seam according to the feedback position. The cylinder cutter 22 can cut the edge banding between the two gypsum boards in the middle from bottom to top along the center line of the fixed-distance seam, so that the edge banding of the two gypsum boards is cut off evenly and with a flush cut.

[0073] In actual operation, since the positions of the linear slide 21 and the positioning and ranging sensor 32 are fixed, the distance difference between the spacer 111 and the cylinder cutter 22 can be obtained based on the distance between the spacer 111 and the spacer 111 detected by the positioning and ranging sensor 32 for the second time. Thus, the linear slide 21 can drive the cylinder cutter 22 to move and align with the spacer 111 for cutting.

[0074] Specifically, for example, the linear slide 21 drives the cylinder cutter 22 to move within a range of 0-200mm, while the maximum distance (when the linear slide 21 drives the cylinder cutter 22 to move 0mm) and the minimum distance (when the linear slide 21 drives the cylinder cutter 22 to move 200mm) between the positioning and ranging sensor 32 and the cylinder cutter 22 are 500mm and 300mm, respectively.

[0075] When the cylinder cutter 22 is at 122mm, and the distance between the positioning and ranging sensor 32 and the spacer 111 is 400mm, the linear slide 21 needs to drive the cylinder cutter 22 to move 22mm away from the positioning and ranging sensor 32. That is, taking the direction in which the linear slide 21 drives the cylinder cutter 22 to move towards the positioning and ranging sensor 32 as the positive direction, the maximum distance (500mm) - the position of the cylinder cutter 22 (122mm) - the measurement distance (400mm) = the required movement distance of the cylinder cutter 22 (-22mm), that is, it needs to move 22mm in the opposite direction.

[0076] The linear slide 21 is a structure consisting of a motor, a lead screw pair, and a slide, which can precisely control the moving distance of the cylinder cutter 22.

[0077] In actual operation, the preset value for ensuring that the fixed-distance joint between two gypsum boards stops in the cutting area is that the positioning and ranging sensor 32 detects that the spacer 111 has reached the movable range of the cylinder cutter 22. That is, when the positioning and ranging sensor 32 first detects that the distance between the spacer 111 and the cylinder cutter 22 is less than the maximum distance between the positioning and ranging sensor 32 and the cylinder cutter 22 (i.e., 500mm), the conveyor 12 stops, thereby ensuring that the fixed-distance joint between the two gypsum boards stays within the cutting range of the cylinder cutter 22.

[0078] Compared to existing automatic side-cutting systems with seam positioning, this embodiment can precisely move the cylinder cutter 22 to the middle of the seam by positioning the seam, thereby cutting the edge banding from the middle of the seam and making the edge banding of multiple gypsum boards more uniform and neat.

[0079] In actual operation, each gypsum board needs to be attached to the partition board 111. If the gypsum board separates from the partition board 111, the gap between the gypsum boards will be uneven. As a result, the distance value detected by the positioning and ranging sensor 32 cannot provide effective information, and the linear slide 21 cannot drive the cylinder cutter 22 to move to the middle of the gap to cut. This will affect the cutting accuracy and also cause the length of the cut edge banding to be inconsistent.

[0080] Therefore, in order to enable the gypsum boards to be conveyed sequentially against the partition 111, the following preferred embodiments are provided.

[0081] 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;

[0082] The belt conveyor 11 is located above the cutting conveyor section 122, with one end of the belt conveyor 11 extending above the feeding conveyor section 12 and the other end of the belt conveyor 11 approaching the top of the discharging conveyor section 123.

[0083] The feeding conveying section 121, the cutting conveying section 122, and the discharging conveying section 123 are independently controlled, and the intervals between the feeding conveying section 121, the cutting conveying section 122, and the discharging conveying section 123 are equal.

[0084] Specifically, when the gypsum board is conveyed from the feeding conveyor section 121 to the cutting conveyor section 122, the cutting conveyor section 122 moves the gypsum board to contact the upper partition plate 111 and push it, and the partition plate 111 drives the belt conveyor 11 to work.

[0085] When the positioning and ranging sensor 32 detects the spacer 111, the cutting conveyor section 122 can stop conveying the gypsum board, while the feeding conveyor section 121 can convey the next gypsum board and place it against another spacer 111. The space between the two spacers 111 is where the gypsum board is stopped from being conveyed. This cycle is repeated so that the gypsum boards can be conveyed against the spacers 111 one by one.

[0086] The cutting area (linear slide 21) is set on the frame of the cutting conveyor section 122 and close to the discharge conveyor section 123. So most of the gypsum board with the edge banding is placed on the discharge conveyor section 123. After cutting, the discharge conveyor section 123 can quickly send the gypsum board out after it leaves the cutting conveyor section 122.

[0087] The feeding conveyor section 121, the cutting conveyor section 122 and the discharging conveyor section 123 are independently controlled and can start and stop independently to adapt to the gypsum board stopping cutting, to make the gypsum board stick to the partition plate 111, and to quickly send out the gypsum board with the cut edge banding.

[0088] As mentioned above, since at least two partition plates 111 are always maintained below the belt conveyor 11, during the conveying process, the independently driven feeding conveyor section 121 will be able to convey the gypsum board to the partition plate 111 below at different speeds, thereby avoiding gaps between the partition plate 111 and the gypsum board and improving the accuracy of the edge banding cutting.

[0089] Furthermore, since the gypsum board pushes the partition plate 111 to move during the conveying process, and the partition plate 111 can drive the belt conveyor 11 to rotate, the belt conveyor 11 does not need a drive source to work, which is more energy-efficient and does not require the design of a program for it.

[0090] During the cutting of the edge banding tape, the cylinder cutter 22 primarily cuts the tape from bottom to top. Compared to the conventional vertical cutting of the edge banding tape, this method prevents the tape from breaking and resulting in uneven cuts. Therefore, to enable the cylinder cutter 22 to cut the edge banding tape, the following preferred embodiment is provided.

[0091] like Figure 2 and Figure 3 As shown, the cylinder cutter 22 includes a linear cylinder 221 and a wide-back cutter 222;

[0092] The wide back cutter 222 is installed at the end of the cylinder rod of the linear cylinder 221, and one end of the wide back cutter 222 is located outside the linear cylinder 221 and below the plasterboard.

[0093] Among them, the length of the wide back cutter 222 that extends beyond the linear cylinder 221 is greater than the thickness of the edge banding tape.

[0094] Specifically, when the cylinder cutter 22 reaches the middle of the fixed-distance seam, the wide-back cutter 222 is centered and parallel to the plasterboard end walls on both sides of the fixed-distance seam. When the linear cylinder 221 pushes the wide-back cutter 222 upward, the wide-back cutter 222 can cut the sealing strip at the fixed-distance seam from bottom to top.

[0095] Because the blade of the wide-back cutter 222 contacts the side wall of the edge banding, the contact area is reduced, making the stress point of the edge banding smaller, making it easier to cut and preventing cracking that would result in uneven cuts.

[0096] In actual operation, even though the cylinder cutter 22 driven by the linear slide 21 will still have movement errors, the gap (fixed distance joint) between two adjacent gypsum boards usually needs to be kept small (within 5mm) in order to ensure the aesthetics after cutting.

[0097] Therefore, in order to enable the cylinder cutter 22 to cut the edge banding tape more accurately from the middle of the fixed-distance seam, the following preferred embodiments are provided.

[0098] like Figure 4 As shown, two feedback ranging sensors 33 are symmetrically arranged on the fixing frame 31, and the feedback ranging sensors 33 are perpendicular to the back of the wide back cutter 222.

[0099] The sensing end face of the feedback ranging sensor 33 and the sensing end face of the positioning ranging sensor 32 are located on the same plane;

[0100] The thickness of the back of the wide-back cutter 222 is equal to the thickness of the spacer 111.

[0101] Since the thickness of the back of the wide-back cutter 222 is equal to the thickness of the spacer plate 111, and the sensing end face of the feedback ranging sensor 33 and the sensing end face of the positioning ranging sensor 32 are located on the same plane, when the wide-back cutter 222 is aligned with the spacer plate 111, the measured values ​​of the feedback ranging sensor 33 and the positioning ranging sensor 32 are equal.

[0102] Specifically, when the linear slide 21 moves the cylinder cutter 22, the feedback ranging sensor 33 measures the position of the wide back cutter 222 (measuring the wide back). The linear slide 21 makes a fine adjustment to the cylinder cutter 22 based on the difference between the measurement value of the feedback ranging sensor 33 and the measurement value of the positioning ranging sensor 32, so that the wide back cutter 222 is located in the middle of the fixed-distance seam.

[0103] During the cutting process, the wide back of the wide-back cutter 222 is positioned below the fixed-distance seam, while the blade of the wide-back cutter 222 is positioned above the plasterboard, ensuring that the wide-back cutter 222 does not come into contact with the plasterboard.

[0104] The feedback ranging sensor 33 can provide feedback on the position of the linear slide 21 driving cylinder cutter 22, thereby enabling more precise adjustment of the wide back cutter 222 to the center of the fixed-distance slit and improving the cutting accuracy.

[0105] The feedback ranging sensor 33 is used to detect the position of the wide back cutter 222. However, when the wide back cutter 222 is cutting, it will be pushed upward by the linear cylinder 221 and will detach from the feedback ranging sensor 33. This can easily cause the feedback ranging sensor 33 to produce incorrect measurement values, which requires program correction and increases the difficulty of program design.

[0106] Therefore, in order to avoid the need to design a program to correct erroneous measurements by the feedback ranging sensor 33, the following preferred embodiments are provided.

[0107] like Figure 5 and Figure 6 As shown, two vertically arranged linear guide rails 34 are symmetrically arranged on the fixed frame 31, and two feedback ranging sensors 33 are respectively installed on the sliders of the two linear guide rails 34.

[0108] The upper limit of the linear guide 34 is higher than the surface of the gypsum board, and the lower limit of the linear guide 34 is lower than the bottom surface of the gypsum board.

[0109] The linear guide 34 moves synchronously with the linear cylinder 221 under the drive of external force.

[0110] Specifically, the linear guide 34 is driven by an external drive source, so that the slider of the linear guide 34 moves synchronously with the cylinder rod of the linear cylinder 221, which enables the feedback ranging sensor 33 to always detect the wide back cutter 222 without erroneous measurement.

[0111] Furthermore, since the feedback distance sensor 33 moves up and down synchronously with the wide back cutter 222, it can detect the deviation of the wide back cutter 222 during its up and down movement. Thus, when the linear cylinder 21 has a driving error, it can be detected and discovered in time (by measuring the change in distance), thereby enabling timely repair and correction and improving the quality of gypsum board edge sealing.

[0112] When the linear guide 34 is driven by an external drive source, it will increase the layout of the drive source lines or pipelines, increase production energy consumption, and increase the design difficulty of the control program.

[0113] Therefore, a preferred embodiment is provided below so that the linear guide 34 can move synchronously with the linear cylinder 221.

[0114] like Figure 5 and Figure 6As shown, a synchronizing rod 341 is provided on the slider of the linear guide rail 34. The other end of the synchronizing rod 341 is installed on the cylinder rod of the linear cylinder 221, and the synchronizing rod 341 is a multi-section telescopic structure.

[0115] An upper sensor 342 and a lower sensor 343 are respectively installed at the upper and lower ends of the linear guide rail 34.

[0116] When the slider of the linear guide rail 34 contacts the upper sensor 342, the collimator of the feedback ranging sensor 33 is at the same height as the surface of the gypsum board.

[0117] Alternatively, when the slider of the linear guide rail 34 contacts the lower sensor 342, the collimator of the feedback ranging sensor 33 is lower than the bottom surface of the gypsum board.

[0118] Specifically, a synchronizing rod 341 is used to connect the cylinder rod of the linear cylinder 221 and the slider of the linear guide rail 34, so that the wide back cutter 222 moves synchronously with the feedback ranging sensor 33. This eliminates the need for an additional drive source, resulting in low cost, low power consumption, and no need for additional control software.

[0119] Because the synchronizing rod 341 adopts a multi-section telescopic structure, it does not affect the linear cylinder 221 being driven by the linear slide table 21.

[0120] Furthermore, in the actual production process, the gypsum board production environment has a large amount of dust. Dust accumulates on the linear cylinder 211 for a long time, which can easily affect the operation of the linear cylinder 211. When the linear cylinder 211 cannot extend or retract to its limit position, it may affect the conveying of gypsum board and prevent the edge banding from being completely cut off.

[0121] Therefore, the upper sensor 342 and the lower sensor 343 can detect whether the slider of the linear guide 34 has moved into place, thereby determining whether the linear cylinder 211 has moved into place.

[0122] As can be seen from the above, the wide back cutter 222 cuts the edge banding tape by cutting from bottom to top. However, when the wide back cutter 222 contacts the side wall of the edge banding tape, the side wall of the edge banding tape is prone to curling due to its softness, which increases the contact area between the wide back cutter 222 and the edge banding tape. This makes it easy for the cut of the edge banding tape to have some uneven areas (at the bottom).

[0123] Therefore, in order to avoid unevenness in the edge banding cut, the following preferred embodiments are provided.

[0124] like Figure 7 As shown, a horizontal cylinder 223 facing the plasterboard is provided at the end of the linear cylinder 221, and one end of the wide back cutter 222 is installed on the cylinder rod of the horizontal cylinder 223.

[0125] The horizontal cylinder 223 and the linear cylinder 221 operate synchronously, or the horizontal cylinder 223 operates after the linear cylinder 221.

[0126] Specifically, when the linear cylinder 221 pushes the horizontal cylinder 223 to move upward, the wide back cutter 222 moves upward to contact and cut the edge banding tape, while the horizontal cylinder 223 can push the wide back cutter 222 towards the inside of the edge banding tape, thereby forming a sliding cutting motion, making the edge banding tape difficult to curl and cut, thus making the cut of the edge banding tape neater.

[0127] The synchronized operation of the horizontal cylinder 223 and the linear cylinder 221 can prevent the wide back cutter 222 from failing to form a sliding cut when the cutting begins, but energy consumption will increase and the wide back cutter 222 needs to be extended to increase redundancy.

[0128] The horizontal cylinder 223 lags behind the linear cylinder 221 in action, which can easily lead to the wide back cutter 222 being unable to perform a sliding cut when cutting begins. Therefore, the following preferred embodiment is provided so that after the horizontal cylinder 223 ensures that the linear cylinder 221 is delayed in action, the edge banding can still be cut with a sliding cut.

[0129] like Figure 7 As shown, a cutting pressure sensor 224 is provided at the end of the cylinder rod of the horizontal cylinder 223, and a wide back cutter 222 is mounted on the cutting pressure sensor 224.

[0130] The horizontal cylinder 223 is activated when the value sensed by the cutting pressure sensor 224 is greater than the threshold.

[0131] When the wide back cutter 222 contacts the sealing tape and begins to cut, the cutting pressure sensor 224 detects an increase in force, thereby controlling the horizontal cylinder 223 to move in conjunction with the linear cylinder 211 to achieve a delayed sliding cut without increasing the length of the wide back cutter 222.

[0132] However, since the cutting pressure sensor 224 is not easy to detect when the wide back cutter 222 makes light contact with the sealing tape, the following preferred embodiment is provided in order to improve the sensitivity of the cutting pressure sensor 224 to the detection of cutting pressure.

[0133] like Figure 7 As shown, a support 225 is provided at the end of the cylinder rod of the horizontal cylinder 223, and the wide back cutter 222 is rotatably mounted on the support 225.

[0134] The cutting pressure sensor 224 is installed at the end of the cylinder rod of the horizontal cylinder 223 and above the wide back cutter 222, and abuts against the end side of the wide back cutter 222;

[0135] The length of the wide back cutter 222 extending beyond the support 225 is greater than the length of the wide back cutter 222 from the support 225 to the cutting pressure sensor 224.

[0136] Specifically, the wide back cutter 222 and the support 225 form a cylinder rod. The length of the wide back cutter 222 extending beyond the support 225 is greater than the length of the wide back cutter 222 from the support 225 to the cutting pressure sensor 224. When the wide back cutter 222 contacts and slightly cuts the edge banding, the cutting pressure sensor 224 can detect a force much greater than the cutting pressure, that is, the cutting pressure is amplified. This allows the cutting pressure sensor 224 to provide feedback more promptly, thereby improving the response performance of the horizontal cylinder 223 and further making the cut of the edge banding neat.

[0137] Since the wide back cutter 222 needs to slide to cut, and when the end of the wide back cutter 222 is at a right angle and has no blade, it may be difficult for the wide back cutter 222 to cut the edge banding through the end side when it starts cutting. Therefore, it is necessary to increase the length of the wide back cutter 222 so that the upper blade of the wide back cutter 222 can cut.

[0138] Therefore, the following preferred embodiment is provided, which enables sliding cutting from the end side of the wide back cutter 222 to the upper side of the wide back cutter 222 without increasing the length of the wide back cutter 222.

[0139] like Figure 8 As shown, the end of the wide back cutter 222 away from the horizontal cylinder 223 and the upper side are both provided with cutting edges, and the end cutting edge and the upper cutting edge of the wide back cutter 222 are rounded.

[0140] Specifically, the arc-shaped blade of the wide back cutter 222 can be placed directly below the edge banding, so that when cutting, the arc-shaped blade touches the edge banding and slides to cut the edge banding and transitions to the upper blade for cutting.

[0141] Since the curved blade can slide and cut the edge banding, there is no need to increase the length of the wide back cutter 222.

[0142] The longer the wide back cutter 222 is, the greater the risk of breakage. Therefore, by avoiding excessive lengthening of the wide back cutter 222 through the above methods, the service life of the wide back cutter 222 can be effectively improved.

[0143] 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. A high-precision automatic side-cutting system for edge banding of gypsum board, 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 width 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 cutting mechanism (2) includes two linear slides (21) and two cylinder cutters (22); The two linear slides (21) are respectively installed in parallel on the two side frames of the conveyor (12), and the two cylinder cutters (22) are respectively installed vertically on the two linear slides (21); The linear slide (21) is used to control the position of the cylinder cutter (22) so that the cylinder cutter (22) cuts the edge banding between two adjacent gypsum boards in the middle of the fixed-distance seam; The ranging mechanism (3) includes a fixed frame (31) and two symmetrically arranged positioning ranging sensors (32); The fixed frame (31) is mounted across the downstream frame of the conveyor (12), and the positioning and ranging sensor (32) is perpendicular to the belt conveyor (11) and mounted on the fixed frame (31); The positioning and ranging sensor (32) detects in real time the position of the spacer (111) located at the bottom of the belt conveyor (11) and close to the positioning and ranging sensor (32); When the measured value of the positioning distance sensor (32) is less than the preset value, the conveyor (12) stops conveying, and after the conveyor (12) stops conveying, the positioning distance sensor (32) measures the position of the partition plate (111) again to locate the position of the fixed distance seam. The linear slide (21) controls the cylinder cutter (22) to move to the middle of the fixed-distance seam based on the remeasurement value of the positioning distance sensor (32), and the cylinder cutter (22) cuts the sealing strip from bottom to top.

2. The high-precision automatic side-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 one end of the belt conveyor (11) extends above the feeding conveyor section (121), and the other end of the belt conveyor (11) is close to the top of the discharging conveyor section (123). The feeding conveying section (121), the cutting conveying section (122), and the discharging conveying section (123) are independently controlled, and the feeding conveying section (121), the cutting conveying section (122), and the discharging conveying section (123) are spaced equally apart.

3. A high-precision automatic side-cutting system for gypsum board edge banding according to claim 1 or 2, characterized in that, The cylinder cutter (22) includes a linear cylinder (221) and a wide-back cutter (222); The wide back cutter (222) is installed at the end of the cylinder rod of the linear cylinder (221), and one end of the wide back cutter (222) is located outside the linear cylinder (221) and below the plasterboard. The length of the wide back cutter (222) extending beyond the linear cylinder (221) is greater than the thickness of the edge sealing tape.

4. The high-precision automatic side-cutting system for gypsum board edge banding according to claim 3, characterized in that, Two feedback ranging sensors (33) are symmetrically arranged on the fixed frame (31), and the feedback ranging sensors (33) are perpendicular to the back of the wide back cutter (222); The sensing end face of the feedback ranging sensor (33) and the sensing end face of the positioning ranging sensor (32) are located on the same plane; The back thickness of the wide-back cutter (222) is equal to the thickness of the spacer plate (111).

5. The high-precision automatic side-cutting system for gypsum board edge banding according to claim 4, characterized in that, Two vertically arranged linear guide rails (34) are symmetrically arranged on the fixed frame (31), and the two feedback ranging sensors (33) are respectively installed on the sliders of the two linear guide rails (34); The upper limit of the linear guide (34) is higher than the surface of the gypsum board, and the lower limit of the linear guide (34) is lower than the bottom surface of the gypsum board. The linear guide rail (34) moves synchronously with the linear cylinder (221) under the drive of external force.

6. The high-precision automatic side-cutting system for gypsum board edge banding according to claim 5, characterized in that, A synchronizing rod (341) is provided on the slider of the linear guide (34), and the other end of the synchronizing rod (341) is installed on the cylinder rod of the linear cylinder (221), and the synchronizing rod (341) is a multi-section telescopic structure; An upper sensor (342) and a lower sensor (343) are respectively provided at the upper and lower ends of the linear guide rail (34); When the slider of the linear guide rail (34) contacts the upper sensor (342), the collimator of the feedback ranging sensor (33) is at the same height as the surface of the gypsum board. Alternatively, when the slider of the linear guide (34) contacts the lower sensor (343), the collimator of the feedback ranging sensor (33) is lower than the bottom surface of the gypsum board.

7. The high-precision automatic side-cutting system for gypsum board edge banding according to claim 3, characterized in that, A horizontal cylinder (223) facing the plasterboard is provided at the end of the linear cylinder (221), and one end of the wide back cutter (222) is mounted on the cylinder rod of the horizontal cylinder (223); The horizontal cylinder (223) operates synchronously with the linear cylinder (221), or the horizontal cylinder (223) operates after the linear cylinder (221).

8. The high-precision automatic side-cutting system for gypsum board edge banding according to claim 7, characterized in that, A cutting pressure sensor (224) is provided at the end of the cylinder rod of the horizontal cylinder (223), and the wide back cutter (222) is mounted on the cutting pressure sensor (224); The horizontal cylinder (223) operates when the sensing value of the cutting pressure sensor (224) is greater than a threshold.

9. A high-precision automatic side-cutting system for gypsum board edge banding according to claim 8, characterized in that, A support (225) is provided at the end of the cylinder rod of the horizontal cylinder (223), and the wide back cutter (222) is rotatably mounted on the support (225); The cutting pressure sensor (224) is installed at the end of the cylinder rod of the horizontal cylinder (223) and above the wide back cutter (222), and abuts against the end side of the wide back cutter (222); The length of the wide back cutter (222) extending beyond the support (225) is greater than the length of the wide back cutter (222) from the support (225) to the cutting pressure sensor (224).

10. A high-precision automatic side-cutting system for gypsum board edge banding according to claim 9, characterized in that, The wide back cutter (222) is provided with blades at the end away from the horizontal cylinder (223) and on the upper side, and the end blade and the upper blade of the wide back cutter (222) are rounded.

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