Gypsum board edge sealing device and edge sealing method

Abstract

The invention relates to the technical field of gypsum board edge sealing, in particular to a gypsum board edge sealing device and an edge sealing method, the gypsum board edge sealing device is installed on one side of a gypsum board and comprises a base plate, an unwinding roller and a flexible pressing structure are rotatably arranged on the base plate, an edge sealing strip is wound on the unwinding roller, and the flexible pressing structure is arranged on the base plate. The free end of the edge sealing strip bypasses the flexible pressing structure and is connected with the gypsum board; the flexible pressing structure comprises a rigid roller core and a deformable air bag, the rigid roller core is rotationally arranged on the base plate, and the deformable air bag is arranged outside the rigid roller core in a surrounding mode and presses the edge sealing strip to be attached to the edge sealing face of the gypsum board. Through the arrangement of the flexible pressing structure, a traditional hard edge sealing roller is changed, the deformable air bag can be flexibly deformed according to the edge contour of the special-shaped gypsum board and is tightly attached to various complex curves and broken lines, the effect is difficult to achieve through a hard roller, and the edge sealing attaching degree problem of the special-shaped board can be effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of gypsum board edge sealing, in particular to a gypsum board edge sealing device and an edge sealing method of the gypsum board edge sealing device. Background Art

[0002] During the transportation and installation process, the edges of gypsum boards are easily damaged or slag-dropped due to external forces such as collision and friction. Edge sealing can provide a protective barrier for the edges of gypsum boards, reducing damage caused by external forces during construction and subsequent use, and maintaining the integrity of the boards.

[0003] In the prior art, the edge banding device generally presses the edge banding strip onto the edge banding surface of the gypsum board through an edge banding wheel so that the edge banding strip is fully fitted onto the edge banding surface of the gypsum board. However, due to design requirements, some gypsum boards with special-shaped edge banding surfaces are usually produced, such as special special-shaped structures such as arcs and waves, or there are gaps on the edge banding surface. The traditional hard edge banding wheel cannot make the edge banding strip fully fit the edge banding surface, resulting in warping of the edge band or hollowing of the glue layer, and the pressure distribution of the edge banding wheel is unbalanced, which can easily cause cracks at the edges and corners of the gypsum board or wrinkles in the edge band. Summary of the invention

[0004] The present invention aims to solve the problem that the hard edge banding wheel in the prior art cannot adapt to the special edge banding surface with arc, wave shape and notch, and provides a gypsum board edge banding device and edge banding method. The specific technical scheme is as follows:

[0005] On the one hand, the present application provides a gypsum board edge sealing device, which is installed on one side of the gypsum board, including a base plate, on which a reel and a flexible pressing structure are rotatably provided, an edge sealing strip is wound around the reel, and a free end of the edge sealing strip passes around the flexible pressing structure and is connected to the gypsum board;

[0006] The flexible pressing structure comprises a rigid roller core and a deformable airbag, wherein the rigid roller core is rotatably arranged on a base plate, and the deformable airbag is arranged around the rigid roller core and presses the edge banding strip to fit the edge banding surface of the gypsum board.

[0007] As a further technical solution of the present invention, a plurality of diaphragms are arranged axially at intervals inside the deformable airbag, and the plurality of diaphragms divide the internal space of the deformable airbag into a plurality of independent air chambers that are not connected to each other. Air holes corresponding to the independent air chambers are opened on the rigid roller core, and the independent air chambers are connected to an independent air source through the air holes.

[0008] As a further technical solution of the present invention, a guiding structure, a gluing structure and a glue layer processing structure are sequentially arranged on the unwinding roller along the traveling direction of the edge banding strip, wherein the guiding structure is used to cooperate with the movement of the gypsum board to deliver the edge banding strip; the gluing structure is used to spray glue liquid onto the bonding surface of the edge banding strip; and the glue layer processing structure is used to evenly spread the glue liquid on the edge banding strip and discharge the gas in the glue liquid.

[0009] As a further technical solution of the present invention, the guide structure includes two groups of guide rollers spaced apart on both sides of the edge banding strip, and the two groups of guide rollers are rotatably mounted on the base plate and rotate in opposite directions.

[0010] As a further technical solution of the present invention, the glue coating structure includes a glue storage tank and a glue spray nozzle, the input end of the glue spray nozzle is connected to the glue storage tank, and the output end of the glue spray nozzle faces the bonding surface of the edge banding strip.

[0011] As a further technical solution of the present invention, the adhesive layer processing structure includes a rotating roller and a plurality of exhaust needles. The rotating roller is rotatably arranged on the substrate and is located on the side where the edge banding strip bonding surface is located. A plurality of groups of exhaust needles are evenly distributed on the outer circumference of the rotating roller. One end of the exhaust needle radially extends to and has an exhaust hole, and the other end extends into the rotating roller and has an opening.

[0012] On the other hand, the present application also provides an edge sealing method of a gypsum board edge sealing device, and the specific steps are as follows:

[0013] S1, adjusting the air pressure in each independent air chamber so that the outer periphery of the deformable airbag adapts to the shape of the edge sealing surface of the gypsum board;

[0014] S2, first pull the free end of the edge banding strip to make it pass through the gap between the two guide rollers, wrap the back side of the edge banding strip around the surface of the flexible pressing structure, and stick the bonding surface of the edge banding strip to the edge banding surface of the gypsum board;

[0015] S3, when the gypsum board moves, the two guide rollers are driven to rotate in opposite directions to synchronously send out the edge banding strip, and the flexible pressing structure rotates synchronously and presses the edge banding strip through the deformable airbag to make it close to the edge banding surface of the gypsum board to achieve edge banding.

[0016] The beneficial effects of the present invention are as follows:

[0017] In the present application, the traditional hard edge banding roller is changed by setting up a flexible pressing structure, and the deformable airbag can flexibly deform according to the edge contour of the special-shaped gypsum board, and fit closely to various complex curves and fold lines, which is difficult for a hard roller to do. It can effectively solve the problem of the edge banding fit of the special-shaped board; during the edge banding process, the pressure on the edge of the special-shaped gypsum board is more uniform and gentle, which can avoid scratches and breakages on the edge of the board due to excessive local pressure like a hard roller, and reduce the quality risks caused by damage to the edge during transportation and installation; the edge banding strip can be fully and evenly contacted with the edge of the gypsum board, the glue can be applied more evenly, the edge banding is more firm, the gap is reduced, and the aesthetics and overall quality are improved.

[0018] And through the setting of the glue layer processing structure, the thickness control of the glue layer and the discharge of bubbles can be achieved simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The overall structural schematic diagram of the gypsum board edge sealing device is shown;

[0020] Figure 2 A schematic diagram of the structure of the guide structure and the glue coating structure is shown;

[0021] Figure 3 A schematic structural diagram of a flexible pressing structure is shown;

[0022] Figure 4 A schematic structural diagram of a glue layer processing structure is shown;

[0023] Figure 5 A schematic structural diagram of the exhaust needle is shown.

[0024] Description of the drawings: 100, substrate; 110, unwinding roller; 111, edge banding strip; 120, flexible pressing structure; 121, rigid roller core; 122, deformable airbag; 123, diaphragm; 124, independent air chamber; 125, air hole; 130, guide structure; 131, guide roller; 140, glue coating structure; 141, glue storage tank; 142, glue spray nozzle; 150, glue layer processing structure; 151, rotating roller; 152, exhaust needle; 153, exhaust hole; 200, gypsum board. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0026] Figure 1 The overall structural schematic diagram of the gypsum board edge sealing device is shown; Figure 1The gypsum board edge sealing device includes a base plate 100, which is installed on one side of a gypsum board 200. The gypsum board 200 has an edge sealing surface facing the base plate 100. The base plate 100 is rotatably provided with an unwinding roller 110 and a flexible pressing structure 120. An edge sealing strip 111 is wound around the unwinding roller 110. The free end of the edge sealing strip 111 bypasses the flexible pressing structure 120 and is connected to the gypsum board 200. The flexible pressing structure 120 is arranged adjacent to the gypsum board 200 and presses the edge sealing strip 111 to fit the gypsum board 200. A guide structure 130, a glue coating structure 140 and a glue layer treatment structure are sequentially arranged on the unwinding roller 110 along the travel direction of the edge sealing strip 111. The guiding structure 130 is used to deliver the edge strip 111 in coordination with the movement of the gypsum board 200, so that the discharge speed of the edge strip 111 is adapted to the movement speed of the gypsum board 200, and the edge strip 111 is prevented from breaking or wrinkling, so as to achieve smooth feeding; the gluing structure 140 is used to spray glue onto the bonding surface of the edge strip 111, so that the edge strip 111 and the gypsum board 200 can continue to adhere to each other after bonding; the glue layer processing structure 150 is used to evenly spread the glue on the edge strip 111 and discharge the gas in the glue, so as to avoid glue overflow when the edge strip 111 adheres to the edge surface of the gypsum board 200, so as to make the adhesion surface more comprehensive.

[0027] In actual use, the free end of the edge strip 111 is first pulled to pass through the guide structure 130, the back side of the edge strip 111 is wrapped around the surface of the flexible pressing structure 120, and the bonding surface of the edge strip 111 is bonded to the edge surface of the gypsum board 200, and then the gypsum board 200 is driven to move, and the edge strip 111 is synchronously delivered through the guide structure 130, the glue coating structure 140 sprays glue on the bonding surface of the edge strip 111, the glue layer processing structure 150 evenly spreads the glue on the bonding surface of the edge strip 111 and discharges the air in the glue, and drives the flexible pressing structure 120 to rotate to cooperate with the movement of the gypsum board 200, and uses the flexible pressing structure 120 to compress the edge strip 111 to make it close to the edge surface of the gypsum board 200 to achieve edge sealing.

[0028] It should be noted that the gypsum board 200 is generally transported by a conveying device arranged at the bottom, and the gypsum board 200 is edge-sealed during the transportation process. The specific conveying device is not limited in this application.

[0029] Figure 2 A schematic structural diagram of the guide structure 130 and the glue coating structure 140 is shown; Figure 2In the figure, the guide structure 130 includes two groups of guide rollers 131 spaced apart on both sides of the edge banding strip 111, and the two groups of guide rollers 131 are rotatably mounted on the base plate 100 and rotate in opposite directions; the edge banding strip 111 located between the two guide rollers 131 can be transmitted through the two groups of guide rollers 131 rotating in opposite directions, and the linear speed of the guide rollers 131 is the same as the movement speed of the gypsum board 200, thereby ensuring that the output length of the edge banding strip 111 is compatible with the input length required by the gypsum board 200.

[0030] Continue to see Figure 2 The glue coating structure 140 includes a glue storage tank 141 and a glue spray nozzle 142. The input end of the glue spray nozzle 142 is connected to the glue storage tank 141, and the output end of the glue spray nozzle 142 is toward the bonding surface of the edge banding strip 111. The glue stored in the glue storage tank 141 is sprayed onto the bonding surface of the edge banding strip 111 through the glue spray nozzle 142, so that the edge banding strip 111 can continue to bond after being bonded to the edge banding surface of the gypsum board 200.

[0031] Figure 3 A schematic structural diagram of a flexible pressing structure 120 is shown; Figure 3 In the embodiment, the flexible pressing structure 120 includes a rigid roller core 121 and a deformable airbag 122. The deformable airbag 122 is arranged around the rigid roller core 121 and adapts to the shape of the edge-sealed surface of the gypsum board 200. That is to say, by setting the deformable airbag 122, the traditional hard edge-sealing roller is changed. The deformable airbag 122 can be flexibly deformed according to the edge contour of the special-shaped gypsum board and fit closely to various complex curves and broken lines, which is difficult for a hard roller to do. This can effectively solve the problem of edge-sealing fit of the special-shaped board. During the edge-sealing process, the pressure on the edge of the special-shaped gypsum board is more uniform and gentle, which can avoid scratches and damages on the edge of the board due to excessive local pressure like a hard roller, and reduce the quality risks caused by damage to the edge during transportation and installation. ; It can make the edge banding strip fully and evenly contact with the edge of the gypsum board, the glue is applied more evenly, the edge banding is more firm, the gap is reduced, and the aesthetics and overall quality are improved; a plurality of diaphragms 123 are arranged axially at intervals inside the deformable airbag 122, and the plurality of diaphragms 123 divide the internal space of the deformable airbag 122 into a plurality of independent air chambers 124 that are not connected to each other, and air holes 125 corresponding to the independent air chambers 124 are opened on the rigid roller core 121, and the independent air chambers 124 are connected to an external air source through the air holes 125; that is to say, the internal space of the cylindrical deformable airbag 122 is divided into a plurality of independent spaces, and these plurality of independent spaces are not connected to each other, and the air pressure at each position on the axial direction of the deformable airbag 122 can be independently controlled.

[0032] For example, for the irregular edge of the C-shaped structure, the air pressure of the multiple independent air chambers 124 is gradually reduced when extending from both sides to the middle, so that the pressure of the outer periphery of the deformable airbag 122 on the irregular edge is uniform.

[0033] For another example, for the irregular edge of the corrugated structure, the air pressure between the multiple independent air chambers 124 is alternately increased and decreased along the axial direction, so that an irregular outer periphery that adapts to the corrugated structure can be formed.

[0034] Figure 4 shows a schematic structural diagram of the glue layer processing structure 150; Figure 5 A schematic diagram of the structure of the exhaust needle 152 is shown; Figure 4 and Figure 5 In the figure, the glue layer processing structure 150 includes a rotating roller 151 and a plurality of exhaust needles 152. The rotating roller 151 is rotatably set on the substrate 100 and is located on the side where the bonding surface of the edge banding strip 111 is located. A plurality of exhaust needles 152 are evenly arranged on the periphery of the rotating roller 151. One end of the exhaust needle 152 radially extends to and is provided with an exhaust hole 153, and the other end extends into the rotating roller 151 and has an opening. By using the setting of the rotating roller 151, the thickness of the glue liquid applied on the bonding surface of the edge banding strip 111 can be limited to ensure that the thickness of the glue liquid is evenly applied, and the exhaust needles 152 can extend into the glue liquid to draw out the air in the glue liquid. The rotation direction of the rotating roller 151 is opposite to the moving direction of the edge banding strip 111, so that the rotating roller 151 and the edge banding strip 111 move towards each other, which is conducive to the discharge of gas.

[0035] It should be noted that, in the present application, the rotation of the unwinding roller 110, the flexible lamination structure 120, the guide structure 130 and the adhesive layer processing structure 150 are all driven by the output motor, which will not be described in detail here.

[0036] The edge sealing method of the gypsum board edge sealing device, the specific steps are as follows:

[0037] S1, adjusting the air pressure in each independent air chamber 124 so that the outer periphery of the deformable airbag 122 is adapted to the shape of the edge sealing surface of the gypsum board 200;

[0038] S2, first pull the free end of the edge banding strip 111 to pass through the gap between the two guide rollers 131, wrap the back side of the edge banding strip 111 around the surface of the flexible pressing structure 120, and attach the bonding surface of the edge banding strip 111 to the edge banding surface of the gypsum board 200;

[0039] S3, when the gypsum board 200 moves, the two guide rollers 131 are driven to rotate in opposite directions to synchronously deliver the edge banding strip 111, and the flexible pressing structure 120 rotates synchronously and presses the edge banding strip 111 through the deformable airbag 122 to make it close to the edge banding surface of the gypsum board 200 to achieve edge banding.

[0040] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A gypsum board edge sealing device, installed on one side of a gypsum board (200), comprising a base plate (100), characterized in that: An unwinding roller (110) and a flexible pressing structure (120) are rotatably arranged on the base plate (100), an edge banding strip (111) is wound around the unwinding roller (110), and a free end of the edge banding strip (111) passes around the flexible pressing structure (120) and is connected to the gypsum board (200); The flexible pressing structure (120) comprises a rigid roller core (121) and a deformable airbag (122), wherein the rigid roller core (121) is rotatably arranged on the substrate (100), and the deformable airbag (122) is arranged around the rigid roller core (121) and presses the edge banding strip (111) to fit the edge banding surface of the gypsum board (200).

2. The gypsum board edge sealing device according to claim 1, characterized in that: The deformable airbag (122) is provided with a plurality of diaphragms (123) spaced apart along the axial direction, and the plurality of diaphragms (123) divide the internal space of the deformable airbag (122) into a plurality of independent air chambers (124) that are not connected to each other. The rigid roller core (121) is provided with air holes (125) corresponding to the independent air chambers (124), and the independent air chambers (124) are connected to an independent air source through the air holes (125).

3. The gypsum board edge sealing device according to claim 2, characterized in that: A guide structure (130), a glue coating structure (140) and a glue layer processing structure (150) are sequentially arranged on the unwinding roller (110) along the moving direction of the edge banding strip (111), wherein the guide structure (130) is used to cooperate with the movement of the gypsum board (200) to deliver the edge banding strip (111); the glue coating structure (140) is used to spray glue liquid onto the bonding surface of the edge banding strip (111); and the glue layer processing structure (150) is used to evenly coat the glue liquid on the edge banding strip (111) and discharge the gas in the glue liquid.

4. The gypsum board edge sealing device according to claim 3, characterized in that: The guide structure (130) comprises two groups of guide rollers (131) arranged at intervals on both sides of the edge banding strip (111); the two groups of guide rollers (131) are both rotatably mounted on the base plate (100) and rotate in opposite directions.

5. The gypsum board edge sealing device according to claim 4, characterized in that: The glue coating structure (140) comprises a glue storage tank (141) and a glue spray nozzle (142), wherein the input end of the glue spray nozzle (142) is connected to the glue storage tank (141), and the output end of the glue spray nozzle (142) faces the bonding surface of the edge banding strip (111).

6. The gypsum board edge sealing device according to claim 5, characterized in that: The adhesive layer processing structure (150) comprises a rotating roller (151) and a plurality of exhaust needles (152); the rotating roller (151) is rotatably arranged on the substrate (100) and is located on the side where the bonding surface of the edge banding strip (111) is located; a plurality of groups of exhaust needles (152) are evenly distributed on the periphery of the rotating roller (151); one end of the exhaust needle (152) radially extends to and is provided with an exhaust hole (153); the other end extends into the rotating roller (151) and has an opening.

7. The edge sealing method of the gypsum board edge sealing device according to claim 6, characterized in that: The specific steps are as follows: S1, adjusting the air pressure in each independent air chamber (124) so ​​that the outer periphery of the deformable airbag (122) is adapted to the shape of the edge sealing surface of the gypsum board (200); S2, first pulling the free end of the edge banding strip (111) so that it passes through the gap between the two guide rollers (131), wrapping the back side of the edge banding strip (111) around the surface of the flexible pressing structure (120), and laminating the bonding surface of the edge banding strip (111) to the edge banding surface of the gypsum board (200); S3, when the gypsum board (200) moves, the two guide rollers (131) are driven to rotate in opposite directions to synchronously deliver the edge banding strip (111), and the flexible pressing structure (120) rotates synchronously and presses the edge banding strip (111) through the deformable airbag (122) to make it close to the edge banding surface of the gypsum board (200), so as to achieve edge banding.

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