Gypsum board edge sealing device

Abstract

The invention relates to the technical field of gypsum board production and manufacturing, in particular to a gypsum board edge sealing device which comprises a rack, an edge sealing wheel and an edge stroking device, and the edge sealing wheel is arranged on the rack, can rotate around the axis of the edge sealing wheel and is used for extruding the side face of a gypsum board; the edge stroking device is arranged on the machine frame, located on the upstream side of the edge sealing wheel and used for enabling the edge sealing belt to achieve preforming before the edge sealing belt reaches the edge sealing wheel. The edge banding belt is pre-formed through the edge stroking device, the edge banding belt is effectively prevented from being directly extruded by the edge banding wheel to be broken or twisted into multiple folds, and the attractiveness of the gypsum board after edge banding is improved. The edge sealing wheel can be suitable for edge sealing of plasterboards with different thicknesses, edge sealing wheels with different specifications do not need to be customized according to the thicknesses of the plasterboards, the frequency of frequently replacing the edge sealing wheels is reduced, the edge sealing efficiency of the plasterboards is improved, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gypsum board manufacturing, and in particular to a gypsum board edge sealing device. BACKGROUND

[0002] The history of gypsum board edge sealing can be traced back to the 1970s, when China began to experiment and produce paper-faced gypsum thin plates and hollow gypsum strip boards, and applied them in construction engineering. With the development of the gypsum board industry, the edge sealing technology has gradually matured and been applied. The edge sealing technology of gypsum board has evolved continuously in its application process. With the development of technology, edge sealing not only plays a protective role, but also gradually becomes an important means to improve the aesthetic and durability of gypsum board, and the performance of different types of gypsum board can be intuitively understood on the edge sealing tape.

[0003] Currently, the core component of the gypsum board edge sealing machine is the edge sealing wheel, the wheel surface of which is concave to match the side edge of the gypsum board. The edge sealing tape is located between the gypsum board and the wheel surface of the edge sealing wheel. The gypsum board and the edge sealing tape are respectively conveyed backward by corresponding conveying devices. When the gypsum board and the edge sealing tape pass through the edge sealing wheel, the edge sealing wheel extrudes the edge sealing tape towards the side edge of the gypsum board, thereby completing the edge sealing of the gypsum board. However, in the extrusion process, the edge sealing tape may frequently break or twist into multiple creases, reducing the aesthetic appearance of the gypsum board and failing to achieve the ideal effect of edge sealing of the gypsum board. SUMMARY

[0004] The present application provides a gypsum board edge sealing device to solve the problem that in the prior art, the edge sealing tape may frequently break or twist into multiple creases during the edge sealing of the gypsum board, reducing the aesthetic appearance of the gypsum board and failing to achieve the ideal effect of edge sealing of the gypsum board.

[0005] The present application provides a gypsum board edge sealing device, comprising:

[0006] a rack;

[0007] an edge sealing wheel arranged on the rack and capable of rotating about its own axis, for extruding the side surface of the gypsum board;

[0008] an edge straightener arranged on the rack and located on the upstream side of the edge sealing wheel, for pre-forming the edge sealing tape before it reaches the edge sealing wheel.

[0009] In one possible design, the device further comprises:

[0010] a first vertical shaft rotatably mounted on the rack, and the edge straightener is mounted on the first vertical shaft;

[0011] a second vertical shaft arranged through the center of the edge sealing wheel and in rotational cooperation with the edge sealing wheel;

[0012] The connecting arm has one end connected with the first vertical shaft and the other end connected with the second vertical shaft.

[0013] The first force transmission rod has one end connected with the first vertical shaft and the other end extending radially outward and connected with the first spring, and the other end of the first spring is fixed on the rack.

[0014] In a possible design, the edge straightener is rotatably installed on the first vertical shaft through a center bearing, and the device further comprises a second force transmission rod, one end of the second force transmission rod is connected with the edge straightener, the other end of the second force transmission rod extends radially outward and is connected with the second spring, and the other end of the second spring is fixed on the rack.

[0015] In a possible design, the edge straightener comprises:

[0016] The back plate is parallel to the side of the gypsum board.

[0017] The first wing plate is connected to the upper side of the back plate and is bent towards the direction of the gypsum board.

[0018] The second wing plate is connected to the lower side of the back plate and is opposite to the first wing plate, and is bent towards the direction of the gypsum board.

[0019] In a possible design, the width between the upper side and the lower side of the back plate gradually decreases along the conveying direction of the gypsum board.

[0020] In a possible design, the edge straightener further comprises first and second ear plates arranged oppositely, the first and second ear plates are fixed to the side of the back plate away from the gypsum board, and the first and second ear plates are respectively fixedly connected with the outer ring of the center bearing.

[0021] In a possible design, the edge sealing wheel comprises an upper half wheel and a lower half wheel, the upper half wheel and the lower half wheel are respectively rotatably sleeved on the second vertical shaft, the upper half wheel and the lower half wheel are connected through concave-convex matching to form a clamping groove on the wheel surface, and the upper half wheel and the lower half wheel adjust the width of the clamping groove by moving closer to or farther away from each other along the axial direction.

[0022] In a possible design, the width of the clamping groove gradually increases in the direction away from the second vertical shaft along the diameter of the edge sealing wheel.

[0023] In a possible design, the upper segment of the second vertical shaft is sleeved with an upper limiting nut, the lower segment of the second vertical shaft is sleeved with a lower limiting nut, an upper spring is arranged between the upper wheel surface of the upper half wheel and the upper limiting nut, and a lower spring is arranged between the lower wheel surface of the lower half wheel and the lower limiting nut.

[0024] In a possible design, the connecting arm comprises two, which are respectively arranged at the upper and lower ends of the second vertical shaft.

[0025] The beneficial effects of the present application are as follows:

[0026] The gypsum board edge sealing device of the present application preforms the edge sealing tape through the edge straightener, effectively prevents the edge sealing tape from being directly extruded and broken or twisted into multiple creases by the edge sealing wheel, and improves the appearance of the sealed gypsum board. The edge sealing wheel can be suitable for edge sealing of gypsum boards of different thicknesses, without the need to customize edge sealing wheels of different specifications according to the thickness of the gypsum board, and also reduces the frequency of replacing the edge sealing wheel, improves the edge sealing efficiency of the gypsum board, and reduces the production cost. The gypsum board edge sealing device of the present application has simple structure, low manufacturing cost, convenient maintenance, greatly reduces the labor intensity, and improves the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application or the prior art, the drawings needed to be used in the description of the specific embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0028] Figure 1 The front view of the gypsum board edge sealing device provided by the embodiment of the present application;

[0029] Figure 2 The top view of the gypsum board edge sealing device provided by the embodiment of the present application;

[0030] Figure 3 The use state schematic diagram of the gypsum board edge sealing device provided by the embodiment of the present application;

[0031] Figure 4 The front view of the edge straightener of the gypsum board edge sealing device provided by the embodiment of the present application;

[0032] Figure 5 The top view of the edge straightener of the gypsum board edge sealing device provided by the embodiment of the present application;

[0033] Figure 6 The sectional view of the edge straightener A-A in the Figure 4

[0034] Figure 7 The structure schematic diagram of the edge sealing wheel of the gypsum board edge sealing device provided by the embodiment of the present application.

[0035] Reference signs:

[0036] ​100, frame; 200, edge sealing wheel; 210, upper half wheel; 211, convex part; 220, lower half wheel; 221, concave part; 230, clamping groove; 231, upper inclined surface; 232, lower inclined surface; 300, edge straightener; 310, back plate; 320, first wing plate; 330, second wing plate; 340, first ear plate; 350, second ear plate; 410, first vertical shaft; 420, second vertical shaft; 430, connecting arm; 440, first force transmission rod; 450, first spring; 460, second force transmission rod; 470, second spring; 480, bearing seat; 490, central bearing; 510, upper limit nut; 520, lower limit nut; 530, upper spring; 540, lower spring; 500, gypsum board. DETAILED DESCRIPTION

[0037] The technical solutions of the present application will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0038] The technical solutions of the present application will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application. Figures 1-7 The gypsum board 500 edge sealing device provided in the embodiments of the present application will be described below with reference to

[0039] Referring to FIGS. 1-3, Figure 1 , Figure 2 The gypsum board 500 edge sealing device provided in the embodiments of the present application includes a frame 100, an edge sealing wheel 200, and an edge straightener 300. The edge sealing wheel 200 is installed on the frame 100 and can rotate about its own axis. The edge sealing wheel 200 is used to extrude the side surface of the gypsum board 500. The edge straightener 300 is installed on the frame 100 and is located on the upstream side of the edge sealing wheel 200. The edge straightener 300 is used to pre-form the edge sealing tape before it reaches the edge sealing wheel 200.

[0040] Specifically, the edge sealing tape is located between the gypsum board 500 and the wheel surface of the edge sealing wheel 200. The gypsum board 500 and the edge sealing tape are conveyed backward by corresponding conveying rollers, respectively. When the gypsum board 500 and the edge sealing tape pass through the edge sealing wheel 200, the edge sealing wheel 200 extrudes the edge sealing tape toward the side edge of the gypsum board 500, thereby completing the edge sealing of the gypsum board 500. Since the unwound edge sealing tape is a flat tape, the edge sealing tape needs to be bent during the edge sealing process under the combined extrusion of the edge sealing wheel 200 and the gypsum board 500, so that the upper and lower sides of the edge sealing tape are folded and laid on the surface of the gypsum board 500. Therefore, the edge sealing tape is prone to breakage or wrinkle during the folding and extrusion process, which affects the edge sealing efficiency and the edge sealing aesthetics.

[0041] The preforming of the sealing strip by the edge straightener 300 enables the upper and lower sides of the sealing strip to be folded in advance to form a shape suitable for the gypsum board 500 before the sealing strip reaches the sealing wheel 200, so that the sealing wheel 200 does not need to fold the sealing strip when the sealing strip reaches the sealing wheel 200, and only needs to paste the sealing strip to the surface of the gypsum board 500. In this way, the sealing strip can be effectively prevented from being broken or distorted into multiple creases by being pressed by the sealing wheel 200, and the appearance and sealing efficiency of the sealed gypsum board 500 are improved.

[0042] With reference to Figure 1 , Figure 2 , Figure 3 In some embodiments provided by the present application, the device further comprises a first vertical shaft 410, a second vertical shaft 420, a connecting arm 430, a first force transmission rod 440, and a first spring 450. The first vertical shaft 410 and the second vertical shaft 420 are both vertically arranged. A bearing seat 480 is mounted on the frame 100, the lower end of the first vertical shaft 410 is mounted in the bearing seat 480, and the edge straightener 300 is welded or bolted to the first vertical shaft 410. The sealing wheel 200 is sleeved on the second vertical shaft 420 through a bearing sleeve, and the sealing wheel 200 can rotate around the second vertical shaft 420. The second vertical shaft 420 is connected to the first vertical shaft 410 through the connecting arm 430. Specifically, the connecting arm 430 includes two, which are arranged at the upper and lower ends of the second vertical shaft 420, respectively. One end of one connecting arm 430 is connected to the upper end of the first vertical shaft 410, and the other end is connected to the upper end of the second vertical shaft 420. One end of the other connecting arm 430 is connected to the lower end of the first vertical shaft 410, and the other end is connected to the lower end of the second vertical shaft 420. One end of the first force transmission rod 440 is fixedly sleeved on the first vertical shaft 410, the other end of the first force transmission rod 440 extends radially outward and is connected to the first spring 450, and the other end of the first spring 450 is fixed to the frame 100.

[0043] With reference to Figure 3As shown, under the pre-tightening force of the first spring 450, the first vertical shaft 410 will be positively rotated by a certain angle, and the connecting arm 430 drives the second vertical shaft 420 to be positively rotated by a corresponding angle around the first vertical shaft 410. When the gypsum board 500 and the edge band are conveyed to the position of the edge straightener 300, the edge band contacts the edge straightener 300, and the edge straightener 300 extrudes the edge band from the outside, so that the upper and lower sides of the edge band are respectively folded inward to form a shape suitable for the gypsum board 500. When the gypsum board 500 and the edge band are conveyed to the position of the edge sealing wheel 200, the side surface of the gypsum board 500 will generate extrusion force with the wheel surface of the edge sealing wheel 200, so as to force the second vertical shaft 420 to be reversely rotated by a certain angle around the first vertical shaft 410. At this time, under the pre-tightening force of the first spring 450, the edge sealing wheel 200 further extrudes the gypsum board 500, so as to paste the edge band on the side surface of the gypsum board 500. In this way, under the pre-tightening force of the first spring 450, the edge band can be effectively prevented from being broken under the premise of ensuring the edge sealing effect.

[0044] Referring to Figure 1 , Figure 2 , Figure 3 As shown, in some embodiments provided by the present application, the edge straightener 300 is rotatably installed on the first vertical shaft 410 through the center bearing 490, one end of the second force transmission rod 460 is connected with the edge straightener 300, the other end of the second force transmission rod 460 extends radially outward and is connected with the second spring 470, and the other end of the second spring 470 is fixed on the rack 100. When the gypsum board 500 and the edge band are conveyed to the position of the edge straightener 300, the edge band contacts the edge straightener 300. At this time, under the pre-tightening force of the second spring 470, the edge straightener 300 further extrudes the edge band from the outside, so that the upper and lower sides of the edge band are respectively folded inward to form a shape suitable for the gypsum board 500. In this way, under the pre-tightening force of the second spring 470, the edge band can be effectively prevented from being broken under the premise of ensuring the pre-forming effect of the edge band.

[0045] Referring to Figure 4 , Figure 5 , Figure 6As shown, in some embodiments provided by the present application, the edge straightener 300 comprises a back plate 310, a first wing plate 320 and a second wing plate 330. The back plate 310 is parallel to the side of the gypsum board 500, the first wing plate 320 is integrally formed on the upper side of the back plate 310, and the second wing plate 330 is integrally formed on the lower side of the back plate 310. The first wing plate 320 and the second wing plate 330 are oppositely arranged, and both of them are bent towards the direction of the gypsum board 500. Specifically, the angle between the first wing plate 320, the second wing plate 330 and the back plate 310 is 100°. In this way, when the edge sealing strip passes through the edge straightener 300, the back plate 310, the first wing plate 320 and the second wing plate 330 respectively extrude the edge sealing strip from the outside, so that the upper and lower sides of the edge sealing strip are respectively folded inward to form a shape suitable for the gypsum board 500, realizing the pre-forming before edge sealing.

[0046] Referring to Figure 4 As shown, in some embodiments provided by the present application, the width between the upper side and the lower side of the back plate 310 gradually decreases along the conveying direction of the gypsum board 500. That is, the input end is wider, and the output end is narrower, which is conducive to introducing the edge sealing strip between the first wing plate 320 and the second wing plate 330, and then gradually folding and forming the edge sealing strip, which can effectively avoid wrinkles of the edge sealing strip during folding and forming.

[0047] Referring to Figure 5 As shown, in some embodiments provided by the present application, the edge straightener 300 further comprises a first ear plate 340 and a second ear plate 350 oppositely arranged, and the first ear plate 340 and the second ear plate 350 are integrally formed on the side of the back plate 310 away from the gypsum board 500. The first ear plate 340 and the second ear plate 350 are respectively welded or bolted to the outer ring of the center bearing 490.

[0048] Referring to Figure 7As shown, in some embodiments provided in the present application, the edge sealing wheel 200 comprises an upper half wheel 210 and a lower half wheel 220, the upper half wheel 210 and the lower half wheel 220 are respectively sleeved on the second vertical shaft 420 through bearings, and the upper half wheel 210 and the lower half wheel 220 are connected through concave-convex matching to form a clamping groove 230 on the wheel surface, and the width of the clamping groove 230 gradually increases in the direction away from the second vertical shaft 420 along the diameter of the edge sealing wheel 200. The width of the clamping groove 230 is adjusted by moving the upper half wheel 210 and the lower half wheel 220 axially. Specifically, the lower end surface of the upper half wheel 210 is provided with a convex part 211, and the upper end surface of the lower half wheel 220 is provided with a concave part 221, the outer wall of the convex part 211 and the inner wall of the concave part 221 are matched in clearance, and the convex part 211 can be clamped in the concave part 221 in the axial direction. The wheel surface of the upper half wheel 210 is formed with an upper inclined surface 231, and the wheel surface of the lower half wheel 220 is formed with a lower inclined surface 232, and the upper inclined surface 231, the convex part 211 and the lower inclined surface 232 together form the clamping groove 230. In this way, by adjusting the relative position of the upper half wheel 210 and the lower half wheel 220 in the axial direction, the width of the convex part 211 between the upper inclined surface 231 and the lower inclined surface 232 can be adjusted, that is, the width of the clamping groove 230 can be adjusted. Thus, it can be suitable for sealing different thickness of gypsum board 500, without the need to customize different specifications of edge sealing wheel 200 according to the thickness of the gypsum board 500, and also reduces the frequency of replacing the edge sealing wheel 200, improves the efficiency of the gypsum board 500 sealing, and reduces the production cost.

[0049] Referring to Figure 7 As shown, in some embodiments provided in the present application, the upper segment of the second vertical shaft 420 is sleeved with an upper limiting nut 510, the lower segment of the second vertical shaft 420 is sleeved with a lower limiting nut 520, the upper wheel surface of the upper half wheel 210 is provided with an upper spring 530 between the upper limiting nut 510, and the lower wheel surface of the lower half wheel 220 is provided with a lower spring 540 between the lower limiting nut 520. By adjusting the position of the upper limiting nut 510 and the lower limiting nut 520, the pre-tightening force of the upper spring 530 and the lower spring 540 is adjusted, so that the width of the clamping groove 230 can be adjusted while the upper half wheel 210 and the lower half wheel 220 are kept a certain axial buffer, and the sealing effect of the sealing tape on the gypsum board 500 is improved.

[0050] The specific working process of the gypsum board edge sealing device of the present application is as follows:

[0051] The edge sealing tape is located between the gypsum board 500 and the wheel surface of the edge sealing wheel 200, and the gypsum board 500 and the edge sealing tape are conveyed backward by corresponding conveying rollers. When the gypsum board 500 and the edge sealing tape are conveyed to the position of the edge straightener 300, the edge sealing tape is in contact with the edge straightener 300, and under the action of the pre-tightening force of the second spring 470, the edge straightener 300 further extrudes the edge sealing tape from the outside, so that the upper and lower sides of the edge sealing tape are respectively folded inward to form a shape matched with the gypsum board 500. When the gypsum board 500 and the edge sealing tape are conveyed to the position of the edge sealing wheel 200, the side surface of the gypsum board 500 will be extruded by the wheel surface of the edge sealing wheel 200, forcing the second vertical shaft 420 to rotate reversely by a certain angle around the first vertical shaft 410. At this time, under the action of the pre-tightening force of the first spring 450, the edge sealing wheel 200 further extrudes the gypsum board 500, so as to paste the edge sealing tape on the side surface of the gypsum board 500. On the premise of ensuring the edge sealing effect, the edge sealing tape can be effectively prevented from being broken.

[0052] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0053] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0054] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection or communication with each other; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0055] In this application, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that a particular feature, structure, material, or characteristic is included in at least one embodiment or example of the present application. The illustrative appearances of the above-mentioned terms in various places in the specification are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Moreover, the terms "first", "second", "third", etc. are used herein to describe various embodiments or examples and are not necessarily intended to denote a particular order, position, or priority of the elements being described. In addition, the terms "comprises", "comprising", "includes", "including", "has", "having", "contains", "containing", or any other similar word(s), are intended to be inclusive or open ended and not restrictive or exhaustive. In other words, the terms "comprises", "comprising", "includes", "including", "has", "having", "contains", "containing", or any other similar word(s), are intended to cover a special embodiment or example, but not exclude other embodiments or examples. In addition, the terms "an" and "one" are intended to be inclusive or open ended and not restrictive or exhaustive. In other words, the terms "an" and "one" are intended to cover both the singular aspect and the plural aspect, unless the context clearly indicates otherwise.

[0056] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary, and are not to be interpreted as limiting the present application, and that the ordinary skilled person in the art can make changes, modifications, replacements, and variations to the above-described embodiments within the scope of the present application.

Claims

1. A gypsum board edge sealing device characterized by, The device comprises: a frame; an edge sealing wheel arranged on the frame and capable of rotating about its own axis, used for pressing the side of the gypsum board; an edge straightener arranged on the frame and located on the upstream side of the edge sealing wheel, used for pre-forming the edge sealing tape before it reaches the edge sealing wheel.

2. The gypsum board edging device of claim 1, wherein, The device further comprises: a first vertical shaft rotatably mounted on the frame, the edge straightener being mounted on the first vertical shaft; a second vertical shaft arranged through the center of the edge sealing wheel and rotatably connected with the edge sealing wheel; a connecting arm having one end connected with the first vertical shaft and the other end connected with the second vertical shaft; a first force transmission rod having one end connected with the first vertical shaft and the other end extending radially outward and connected with a first spring, the other end of the first spring being fixed on the frame.

3. The gypsum board edging device of claim 2, wherein: The edge straightener is rotatably mounted on the first vertical shaft through a center bearing, and the device further comprises a second force transmission rod, one end of the second force transmission rod being connected with the edge straightener, the other end extending radially outward and connected with a second spring, the other end of the second spring being fixed on the frame.

4. The gypsum board edging device of claim 3, wherein: The edge straightener comprises: a back plate parallel to the side of the gypsum board; a first wing plate connected to the upper side of the back plate and bent towards the gypsum board; a second wing plate connected to the lower side of the back plate and arranged opposite to the first wing plate and bent towards the gypsum board.

5. The gypsum board edging device of claim 4, wherein: The width between the upper side and the lower side of the back plate gradually decreases in the conveying direction of the gypsum board.

6. The gypsum board edging device of claim 5, wherein: The edge straightener further comprises first and second ear plates arranged opposite to each other, the first and second ear plates being fixed on the side of the back plate away from the gypsum board, and the first and second ear plates being respectively fixedly connected with the outer ring of the center bearing.

7. The gypsum board edging device of claim 2, wherein: The edge sealing wheel comprises an upper half wheel and a lower half wheel, the upper half wheel and the lower half wheel being rotatably sleeved on the second vertical shaft, the upper half wheel and the lower half wheel being engaged through concave-convex matching to form a clamping groove on the wheel surface, and the width of the clamping groove being adjusted by moving the upper half wheel and the lower half wheel axially towards or away from each other.

8. The gypsum board edging device of claim 7, wherein: The width of the clamping groove gradually increases in the direction away from the second vertical shaft along the diameter of the edge sealing wheel.

9. The gypsum board edging device of claim 8, wherein: An upper limiting nut is sleeved on the upper section of the second vertical shaft, a lower limiting nut is sleeved on the lower section of the second vertical shaft, an upper spring is arranged between the upper wheel surface of the upper half wheel and the upper limiting nut, and a lower spring is arranged between the lower wheel surface of the lower half wheel and the lower limiting nut.

10. The gypsum board edging device of claim 2, wherein: The connecting arm comprises two connecting arms arranged on the upper and lower ends of the second vertical shaft respectively.

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