Edge band automatic connection device and method

Abstract

The invention relates to the technical field of edge sealing tape connection, and provides an automatic edge sealing tape connection device and method.The automatic edge sealing tape connection device comprises an unwinding rack, the two sides of the unwinding rack are each provided with two unwinding structures used for installing and unwinding an edge sealing tape roll, and the two sides of the unwinding rack are each provided with a plurality of guide groove frames; a plurality of guide wheels are rotationally connected into the guide groove frame, the two sides of the top of the unwinding rack are fixedly connected with the guide machine boxes correspondingly, the guide machine boxes correspond to the two unwinding structures, and two bent guide cylinders are arranged on the two sides of the bottom of each guide machine box; and the two unwinding structures respectively drive the edge sealing belt to enter the guide case through the bent guide cylinder. By means of the technical scheme, the problem that in the prior art, when two edge sealing strip coils are connected, due to the fact that the connecting and overlapping area between two edge sealing strips is large, the follow-up edge sealing strips are prone to tilting and glue failure is solved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of edge banding tape splicing technology, specifically, to an automatic edge banding tape splicing device and method. Background Technology

[0002] During the production of gypsum board, after the gypsum board is formed, the sides are relatively rough and are areas with poor strength. Therefore, in order to improve the protection and overall strength of the gypsum board during transportation and use, edge sealing tape is usually used to seal the sides of the formed gypsum board to protect the sides.

[0003] In the prior art, when it is necessary to wrap the edge banding tape around the side of the gypsum board, during the conveying process of the gypsum board by the belt conveyor, adhesive is applied to both sides of the gypsum board so that the edge banding tape comes into contact with the side of the gypsum board and adheres to it. The edge banding tape is in a rolled state, and the roll of the edge banding tape is fixed on the unwinding mechanism. The unwinding mechanism drives the edge banding tape to keep pace with the movement speed of the gypsum board and unwinds it synchronously, so that the edge banding tape adheres to the side of the gypsum board.

[0004] However, when the edge banding tape roll is unwound, a new edge banding tape roll needs to be reinstalled on the unwinding mechanism so that the edge banding tape roll continues to wrap around the side of the gypsum board during the unwinding process, following the old edge banding tape. However, since the unwinding of the edge banding tape and the conveying of the gypsum board are two cooperating transmission mechanisms, the unwinding of the edge banding tape and the conveying of the gypsum board need to be stopped simultaneously when changing the edge banding tape roll, which affects the continuity of the gypsum board edge wrapping.

[0005] Therefore, existing technologies have begun to develop technical structures for automatically splicing two rolls of edge banding tape. However, the common technical structures used in the current technology for splicing two rolls of edge banding tape result in a long overlapping area between the two edge banding tapes after splicing. When the overlapping area is adhered to the plasterboard, the edge banding tape is prone to "lifting and delamination" due to friction and other reasons, causing the edge banding tape to fall off from the side of the plasterboard. Furthermore, because the edge banding tape needs to pass through multiple wheel-type transmission structures during the bonding process with the plasterboard, if the overlapping area between the two edge banding tapes is small, the two spliced ​​edge banding tapes are prone to breakage. Summary of the Invention

[0006] To overcome the above-mentioned defects, embodiments of the present invention provide an automatic edge banding tape splicing device and method, which solves the technical problem in the prior art that when splicing two rolls of edge banding tape, the large overlap area between the two edge banding tapes easily causes the subsequent edge banding tape to "lift and delaminate".

[0007] An automatic edge sealing tape splicing device includes an unwinding frame, with two unwinding structures on both sides of the unwinding frame for unwinding the edge sealing tape roll. Multiple guide slots are provided on both sides of the unwinding frame, and multiple guide wheels are rotatably connected within the guide slots. The device also includes: The guide box is fixedly connected to both sides of the top of the unwinding frame. The guide box corresponds to two of the unwinding structures. Two curved guide cylinders are provided on both sides of the bottom of the guide box. Each of the two unwinding structures drives the sealing strip through the curved guide cylinders into the guide box. The guide housing is equipped with a moving component that drives the two curved guide cylinders to move relative to each other, thereby causing the two sealing strips to adhere and connect. The guide housing is also equipped with a cutting component that cuts one of the sealing strips. The transmission housing is provided on both sides of the bottom of the unwinding frame, and the transmission housing is provided with a traction component for traction and splicing the edge sealing tape. A cutting and bonding structure is installed inside the transmission housing to cut off the overlapping area of ​​the two edge banding strips and bond the broken ends of the two edge banding strips to the side ends of the gypsum board.

[0008] According to one embodiment of this application, the unwinding structure includes a mounting side cover, a compression ring, and a measuring sensor for unwinding the edge sealing tape. The mounting side cover is fixedly connected to the unwinding frame, and a paper feeding tray is rotatably connected to the mounting side cover. The compression ring is threaded onto the paper feeding tray to compress the edge sealing tape roll between the paper feeding tray and the compression ring. The measuring sensor is provided on the mounting side cover for measuring the remaining amount of edge sealing tape on the paper feeding tray.

[0009] To pre-store a sufficient length of sealing tape, according to an embodiment of this application, a tape storage assembly is provided on both sides of the unwinding frame. The tape storage assembly includes a fixed slot frame, a movable slot frame, and a longitudinal slide groove. The fixed slot frame is fixedly connected to the unwinding frame, and the longitudinal slide groove is fixedly connected to the unwinding frame. The movable slot frame is slidably connected to the longitudinal slide groove via a slide block. Multiple transmission wheels are rotatably connected to both the fixed slot frame and the movable slot frame. The sealing tape is driven between the multiple transmission wheels. By adjusting the distance between the fixed slot frame and the movable slot frame, the pre-storage of the sealing tape is achieved.

[0010] In order to move the bending guide cylinder, according to an embodiment of this application, the bending guide cylinder is disposed in the guide housing by an elastic metal clip, and the position of the bending guide cylinder is adjusted by the deformation of the elastic metal clip. Multiple guide rollers are rotatably connected inside the bending guide cylinder, and the multiple guide rollers are distributed in a triangular region.

[0011] To adjust the spacing between the two curved guide cylinders, according to an embodiment of this application, the moving component includes a push plate and a first electric cylinder. The two sides of the push plate are in contact with the inclined areas of the two curved guide cylinders. The first electric cylinder is provided on the unwinding frame. The output end of the first electric cylinder is connected to the push plate, which drives the push plate to move, compresses the elastic metal clip, and adjusts the spacing between the two curved guide cylinders so that the two sealing strips are joined together.

[0012] In order to cut the old edge banding tape, according to an embodiment of this application, the cutting assembly includes a cutting groove, a sliding strip, and a cutting tool. The cutting groove is fixedly connected through the middle of the two curved guide cylinders. A second electric cylinder is provided on the guide housing. The sliding strip is provided on the output end of the second electric cylinder. The cutting tool is slidably provided on the sliding strip for cutting one of the edge banding tapes.

[0013] In order to move the edge sealing tape after traction splicing, according to an embodiment of this application, the traction assembly includes a traction shaft, a transition wheel and a first motor. The traction shaft is rotatably connected in the transmission housing. Two traction wheels are fixedly sleeved on the traction shaft. A transition groove frame is fixedly connected to the side of the transmission housing near the unwinding frame. The transition wheel is rotatably connected in the transition groove frame. The first motor that drives the traction shaft to rotate is provided on the transmission housing.

[0014] To cut off the overlapping area of ​​two edge banding strips and bond the cut ends of the two edge banding strips to the side of the gypsum board, according to an embodiment of this application, the cutting and bonding structure includes a retaining wheel, a driving wheel, and a cutting assembly. The retaining wheel is rotatably connected inside the transmission housing. A slot is formed on the side wall of the transmission housing, and mounting seats are provided on both sides of the slot. The driving wheel is rotatably connected inside the mounting seats. The joined edge banding strip moves between the retaining wheel and the two driving wheels. The transmission housing is provided with a cutting assembly for cutting off the joint area of ​​the edge banding strip. The transmission housing is provided with a third electric cylinder that drives one of the mounting seats to move, and an elastic assembly that drives the other mounting seat to move.

[0015] In order to cut off the edge banding tape joint area, according to an embodiment of this application, the cutting assembly includes a cutting blade and a fourth electric cylinder. The cutting blade is movably disposed in the transmission housing, and the fourth electric cylinder is disposed on the transmission housing to drive the cutting blade to move, thereby cutting off the edge banding tape joint area located between the retaining wheel and the two drive wheels.

[0016] An automatic edge banding tape splicing method includes the following steps: Step 1, Unloading: When the measuring sensor detects that the old edge banding tape on one of the unwinding structures is insufficient, place the new edge banding tape roll on the other unwinding structure on the same side, apply adhesive to the end of the new edge banding tape, and move the end of the edge banding tape into the bending guide cylinder. Step 2, Pre-storage: Increase the unwinding speed of the old edge banding tape in a short time to pre-storage a sufficient length of edge banding tape in the storage structure; Step 3, Continuation: Adjust the position of the push plate so that the two curved guide cylinders are close to each other, so that the end of the new edge banding is bonded to the old edge banding with adhesive; Step 4: Cutting: Use the cutting assembly to cut the old edge banding, causing the old edge banding to pull the new edge banding towards the side of the plasterboard; Step 5, Traction: Use the traction assembly to adjust the conveying height of the edge banding belt within the transmission housing; Step Six, Edge Sealing: When the edge sealing tape is moved to the holding wheel, the new edge sealing tape is pre-bonded to the plasterboard. The cutting component is used to cut both sides of the joint area of ​​the edge sealing tape. The new edge sealing tape is conveyed along with the plasterboard. Under the action of the elastic component, the corresponding mounting base and drive wheel are pushed to make the old edge sealing tape contact the side end of the plasterboard. As the old edge sealing tape is gradually attached to the plasterboard, the joint between the new and old edge sealing tapes is joined on the side end of the plasterboard.

[0017] The beneficial effects of the embodiments of the present invention are as follows: 1. In this invention, when it is necessary to achieve automatic splicing of two edge banding rolls, when one unwinding structure drives the edge banding roll to unwind, the new edge banding roll is placed on the other unwinding structure on the same side. Adhesive is applied to the end of the new edge banding, and the end of the edge banding is moved into the remaining curved guide cylinder. When the measuring sensor detects that the remaining amount of the old edge banding roll on the unwinding structure is not much, the unwinding speed of the old edge banding is increased for a short time, so that the storage structure stores a sufficient length of edge banding. Then, the two curved guide cylinders are brought closer to each other, so that the end of the new edge banding is adhered to the old edge banding through the adhesive. Then, the cutting component cuts the old edge banding, so that the old edge banding carries the new edge banding towards the side end of the gypsum board, completing the automatic splicing of the edge banding and improving the continuity of the gypsum board side edge wrapping.

[0018] 2. In this invention, to avoid long edge banding joint areas on the side of the gypsum board, a traction assembly is used to drive the edge banding into the transmission housing. After the joint area of ​​the edge banding is conveyed between the retaining wheel and the two drive wheels, a cutting assembly is used to cut off the joint area on the edge banding. Then, the two drive wheels are driven to squeeze the cut ends of the two edge bandings towards the side of the gypsum board, so that the cut ends of the two edge bandings overlap at the side of the gypsum board, reducing the joint length of the edge banding and ensuring the stability of the subsequent edge banding on the gypsum board. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of the present invention and these drawings without any creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A magnified structural diagram of point A in the middle; Figure 3 This is a schematic diagram of the structure of the unwinding frame, guide slot frame, guide housing, transmission housing and mounting side cover in this invention; Figure 4 This is a partial cross-sectional structural diagram showing the cooperation of the guide housing, bending guide cylinder, drive wheel, push plate and cutting tool in this invention; Figure 5 This is a partial cross-sectional structural diagram showing the cooperation of the bending guide cylinder, guide roller, push plate, cutting groove and cutting tool in this invention. Figure 6 This is a schematic diagram of the transmission housing, traction shaft, traction wheel, transition wheel, and slotted fit in this invention. Figure 7 This is a partial cross-sectional structural schematic diagram of the transmission housing, traction shaft, transition wheel, drive wheel, and parking wheel in this invention; Figure 8 This is a partial cross-sectional planar structural schematic diagram of the transmission housing, cutting blade, drive wheel, and idler wheel in this invention.

[0021] In the diagram: 1. Unwinding frame; 2. Guide slot frame; 3. Guide wheel; 4. Guide housing; 5. Bending guide cylinder; 6. Transmission housing; 7. Mounting side cover; 8. Paper tray; 9. Compression ring; 10. Measuring sensor; 11. Fixed slot frame; 12. Moving slot frame; 13. Longitudinal chute; 14. Transmission wheel; 15. Elastic metal clamp; 16. Guide roller; 17. Push plate; 18. First electric cylinder; 19. Cutting slot; 20. Sliding bar; 21. Second electric cylinder; 22. Cutting tool; 23. Traction shaft; 24. Traction wheel; 25. Transition wheel; 26. First motor; 27. Holding wheel; 28. Drive wheel; 29. ​​Slotting; 30. Mounting rotary seat; 31. Third electric cylinder; 32. Cutting blade; 33. Fourth electric cylinder; 34. Second motor; 35. Drive wheel; 36. Sleeve; 37. Support rod. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it.

[0023] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0024] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0027] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] Example 1, as Figures 1 to 3 As shown, this invention discloses an automatic edge banding tape splicing device, including an unwinding frame 1. Two unwinding structures for unwinding edge banding tape rolls are provided on both sides of the unwinding frame 1. Each unwinding structure includes a mounting side cover 7, a compression ring 9, and a measuring sensor 10. The mounting side cover 7 is fixedly connected to the unwinding frame 1, and a paper feeding tray 8 is rotatably connected to the mounting side cover 7. The compression ring 9 is threaded onto the paper feeding tray 8, compressing the edge banding tape roll between the paper feeding tray 8 and the compression ring 9. The measuring sensor 10 is provided on the mounting side cover 7 to measure the remaining edge banding tape on the paper feeding tray 8. When unwinding is required, the edge banding tape is spliced ​​according to the gypsum board conveying speed. When the edge banding tape is moved to the side of the gypsum board and the side of the gypsum board is edged, the edge banding tape roll is first placed vertically on the paper tray 8. Then, the extrusion ring 9 is threaded onto the paper tray 8, so that the extrusion ring 9 and the paper tray 8 clamp the edge banding tape roll. The side cover 7 is equipped with a second motor 34, the output end of which is connected to the paper tray 8, driving the paper tray 8, the edge banding tape roll and the extrusion ring 9 to rotate and unwind the edge banding tape roll. The measuring sensor 10 is used to measure the remaining edge banding tape on the paper tray 8. When there is little edge banding tape left on the old edge banding tape roll, the staff is reminded to observe the edge banding tape splicing.

[0029] like Figures 1 to 3 As shown, in this embodiment, multiple guide slots 2 are provided on both sides of the unwinding frame 1. Multiple guide wheels 3 are rotatably connected inside the guide slots 2. The number of guide slots 2 used in this invention is large and the shapes are different, including rectangular, square and L-shaped. The number and distribution of guide wheels 3 are also adapted to the shape of the guide slots 2. They are used to guide and transport the sealing strip. The sealing strip on the paper tray 8 is transferred to the curved guide cylinder 5 through the rectangular guide slots 2. The sealing strip removed from the guide box 4 first changes the transport direction through the square guide slots 2 and finally enters the transmission box 6 through the L-shaped guide slots 2.

[0030] like Figures 1 to 3As shown, in this embodiment, tape storage assemblies are provided on both sides of the unwinding frame 1. The tape storage assembly includes a fixed slot frame 11, a movable slot frame 12, and a longitudinal slide 13. The fixed slot frame 11 is fixedly connected to the unwinding frame 1, and the longitudinal slide 13 is fixedly connected to the unwinding frame 1. The movable slot frame 12 is slidably connected to the longitudinal slide 13 via a slide block. Multiple drive wheels 14 are rotatably connected to both the fixed slot frame 11 and the movable slot frame 12. The edge sealing tape drive is arranged between the multiple drive wheels 14. By adjusting the distance between the fixed slot frame 11 and the movable slot frame 12, the pre-storage of the edge sealing tape is achieved. When the edge banding needs to be replaced, in order to avoid affecting the normal conveying speed of the gypsum board, the second motor 34 is driven in advance to speed up the unwinding speed of the paper tray 8 on the old edge banding roll. At this time, the moving slot frame 12 slides down on the longitudinal slot 13 under its own gravity. At this time, the distance between the moving slot frame 12 and the fixed slot frame 11 increases, which increases the length of the edge banding set between multiple transmission wheels 14. In this way, when the unwinding speed of the edge banding is slowed down in the subsequent splicing process, there will be enough edge banding to wrap the side of the gypsum board.

[0031] like Figure 1 , Figures 3 to 5 As shown, in this embodiment, a guide box 4 is also included. Guide boxes 4 are fixedly connected to both sides of the top of the unwinding frame 1. The guide boxes 4 correspond to two of the unwinding structures. Two curved guide cylinders 5 are provided on both sides of the bottom of the guide box 4. Each of the two unwinding structures drives the sealing strip through the curved guide cylinder 5 into the guide box 4. The curved guide cylinder 5 is positioned inside the guide box 4 by elastic metal clips 15. The position of the curved guide cylinder 5 is adjusted by the deformation of the elastic metal clips 15. Multiple guide rollers are rotatably connected inside the curved guide cylinder 5. 16. Multiple guide rollers 16 are distributed in a triangular area, conveying the new and old edge banding strips into the guide housing 4 through the corresponding curved guide cylinders 5. As the edge banding strip passes through the cut-off slot 19, it is driven between the multiple guide rollers 16, maintaining a certain area of ​​adhesion between the new and old edge banding strips. The elastic metal clip 15, when not affected by external force, will bring the two curved guide cylinders 5 closer together, adhering the new and old edge banding strips together. Adhesive is added to the end of the new edge banding strip in advance, and the adhesive is used to bond the new and old edge banding strips together.

[0032] like Figure 1 , Figures 3 to 5 As shown, the top of the inner part of the guide housing 4 is rotatably connected to multiple drive wheels 35, which allows the two edge banding strips bonded together to be driven between the multiple drive wheels 35, thereby improving the bonding stability between the two edge banding strips.

[0033] like Figure 1 , Figures 3 to 5As shown, in this embodiment, the guide housing 4 is equipped with a moving assembly that drives two curved guide cylinders 5 to move relative to each other, thereby causing the two sealing strips to adhere and connect. The moving assembly includes a push plate 17 and a first electric cylinder 18. The two sides of the push plate 17 are in contact with the inclined areas of the two curved guide cylinders 5. The unwinding frame 1 is equipped with the first electric cylinder 18, the output end of which is connected to the push plate 17. The push plate 17 is moved to compress the elastic metal clip 15 and adjust the distance between the two curved guide cylinders 5 so that the two sealing strips adhere and connect. When it is necessary to separate the two curved guide cylinders 5, the first electric cylinder 18 is activated to move the push plate 17 upward, so that the push plate 17 adheres to the inclined area of ​​the outer wall of the curved guide cylinder 5, thereby driving the two curved guide cylinders 5 to move in opposite directions. When it is necessary to move the two curved guide cylinders 5 in a closer direction, the push plate 17 is moved downward. Under the elastic reset action of the elastic metal clip 15, the two curved guide cylinders 5 move closer to each other.

[0034] like Figure 1 , Figures 3 to 5 As shown, in this embodiment, the guide housing 4 is also equipped with a cutting assembly for cutting one of the edge banding strips. The cutting assembly includes a cutting slot 19, a sliding bar 20, and a cutting tool 22. The cutting slot 19 is fixedly connected through the middle of both curved guide cylinders 5. A second electric cylinder 21 is provided on the guide housing 4. The sliding bar 20 is located on the output end of the second electric cylinder 21. The cutting tool 22 is slidably located on the sliding bar 20 and is used to cut one of the edge banding strips. When performing edge banding strip splicing operations, the position of the cutting tool 22 is adjusted in advance so that the position of the cutting tool 22 corresponds to one side of the old edge banding strip. A through groove is provided on the middle side of the cutting slot 19 so that the edge banding strip moves in the through groove. The second electric cylinder 21 is activated to drive the sliding bar 20 and the cutting tool 22 to move into the cutting slot 19 so that the cutting tool 22 enters the cutting slot 19 and cuts the old edge banding strip in the through groove.

[0035] like Figure 1 , Figure 3 , Figures 6 to 8As shown, in this embodiment, transmission housings 6 are provided on both sides of the bottom of the unwinding frame 1. A traction assembly for the attached edge sealing strip is provided inside the transmission housing 6. The traction assembly includes a traction shaft 23, a transition wheel 25, and a first motor 26. The traction shaft 23 is rotatably connected inside the transmission housing 6, and two traction wheels 24 are fixedly mounted on the traction shaft 23. A transition groove frame is fixedly connected to the side of the transmission housing 6 closest to the unwinding frame 1, and the transition wheel 25 is rotatably connected inside the transition groove frame. A first motor 26 that drives the traction shaft 23 to rotate is provided on the transmission housing 6. The attached edge sealing strip also passes through multiple guide groove frames 2. The attached edge sealing strip enters the transmission housing 6 through the bottommost L-shaped guide groove frame 2. First, the edge banding belt makes transmission contact with the lower traction wheel 24. Then, after passing through the transition wheel 25, it moves into the transmission housing 6, allowing the edge banding belt to engage with the upper traction wheel 24. The height of the upper traction wheel 24 matches the height of the slot 29. The purpose of the edge banding belt passing through the transition wheel 25 is to change the transmission path between the two traction wheels 24 and to maintain sufficient transmission tension. The lower traction wheel 24 is used to pull the edge banding belt into the transmission housing 6, while the upper traction wheel 24 is used to adjust the conveying height of the edge banding belt so that it corresponds to the side end of the gypsum board. The first drive motor is started, driving the traction shaft 23 and the two traction wheels 24 to rotate.

[0036] like Figure 1 , Figure 3 , Figures 6 to 8As shown, in this embodiment, the cutting and bonding structure is installed inside the transmission housing 6 to cut the overlapping area of ​​the two edge banding strips and bond the cut ends of the two edge banding strips to the side end of the gypsum board. The cutting and bonding structure includes a retaining wheel 27, a driving wheel 28, and a cutting assembly. The retaining wheel 27 is rotatably connected inside the transmission housing 6. A slot 29 is provided on the side wall of the transmission housing 6, and mounting seats 30 are provided on both sides of the slot 29. The driving wheel 28 is rotatably connected inside the mounting seats 30. The joined edge banding strips are then... The retaining wheel 27 moves between the two drive wheels 28. A cutting assembly is provided on the transmission housing 6 to cut off the joint area of ​​the edge banding tape. A third electric cylinder 31 is installed inside the transmission housing 6 to move one of the mounting rotary seats 30. An elastic component is also installed inside the transmission housing 6 to move the other mounting rotary seat 30. The edge banding tape is driven between the retaining wheel 27 and the two drive wheels 28 within the transmission housing 6. The drive wheels 28 allow the edge banding tape to adhere to the side end of the gypsum board. The third electric cylinder 31... The edge banding is positioned closer to the unwinding frame 1, while the elastic component is positioned further away. During the edge banding conveyor process, the edge banding is exposed from the slot 29. When the edge banding bonding area moves to the retaining wheel 27, the third electric cylinder 31 is activated in advance to drive the corresponding mounting rotary seat 30 and drive wheel 28 towards the gypsum board, bonding the new edge banding to the gypsum board. The cutting component cuts both sides of the bonding area of ​​the edge banding, and the new edge banding is conveyed along with the gypsum board. Under the action of the elastic component, the corresponding mounting pivot 30 and drive wheel 28 are pushed to make the old edge banding tape contact the side end of the gypsum board. During the gradual bonding process of the old edge banding tape, the joint between the old and new edge banding tapes is made to meet on the side end of the gypsum board. This not only prevents the side end of the gypsum board from being exposed, but also reduces the risk of the edge banding tape curling and delamination in the future. After the new edge banding tape is conveyed stably, the edge banding tape can be re-engaged with the retention wheel 27 during the gap of gypsum board feeding, which is convenient for the next replacement.

[0037] like Figure 1 , Figure 3 , Figures 6 to 8 As shown, the elastic component includes a sleeve 36, which is fixedly connected inside the transmission housing 6. A support rod 37 is slidably connected through the sleeve 36. The support rod 37 is connected to the corresponding mounting pivot 30. A spring is provided between the support rod 37 and the inner wall of the sleeve 36. The spring force pushes the support rod 37 out of the sleeve 36, causing the support rod 37 to drive the mounting pivot 30 and the drive wheel 28 to push towards the side of the gypsum board.

[0038] like Figure 1 , Figure 3 , Figures 6 to 8As shown, in this embodiment, the cutting assembly includes a cutting blade 32 and a fourth electric cylinder 33. The cutting blade 32 is movably disposed within the transmission housing 6. The transmission housing 6 is equipped with a fourth electric cylinder 33 that drives the cutting blade 32 to move. The cutting blade 32 cuts off the edge banding joint area located between the retaining wheel 27 and the two drive wheels 28. With the center line of the transmission housing 6 as the axis, the cutting blade 32 is inclinedly disposed within the transmission housing 6. After the cutting blade 32 cuts the joint area, the end of the new edge banding is directly squeezed by the drive wheel 28 driven by the third electric cylinder 31 to adhere to the side end of the gypsum board. A certain area of ​​the old edge banding is reserved so that under the pressure of the drive wheel 28 on the corresponding side, the old edge banding not only adheres to the side end of the gypsum board, but also gradually connects the end of the old edge banding with the end of the new edge banding, reducing the risk of edge banding curling later. The output end of the fourth electric cylinder 33 is connected to the cutting blade 32 and can drive the cutting blade 32 to move longitudinally.

[0039] The working principle of this automatic edge banding tape splicing device: When it is necessary to achieve automatic splicing of two edge banding rolls, when one of the unwinding structures drives the edge banding roll to unwind, the new edge banding roll is placed on the other unwinding structure on the same side. Adhesive is applied to the end of the new edge banding, and the end of the edge banding is moved into the remaining curved guide cylinder 5. When the measuring sensor 10 senses that there is not much remaining old edge banding roll on the unwinding structure, the unwinding speed of the old edge banding is increased for a short time so that the storage structure stores a sufficient length of edge banding. Then, the position of the push plate 17 is adjusted so that the two curved guide cylinders 5 are close to each other, so that the end of the new edge banding is adhered to the old edge banding through the adhesive. Then, the cutting component is used to cut the old edge banding, so that the old edge banding drives the new edge banding to move towards the side of the gypsum board, thus completing the automatic splicing of the edge banding. After being connected, the edge banding tape enters the transmission housing 6 through the L-shaped guide slot 2 at the bottom. The edge banding tape first makes transmission contact with the traction wheel 24 located on the lower side, and then moves the edge banding tape through the transition wheel 25 and then into the transmission housing 6, so that the edge banding tape cooperates with the traction wheel 24 located on the upper side to drive the edge banding tape to move towards the slotted area 29 in the transmission housing 6. During the edge banding belt transmission process, the edge banding belt is exposed from the slot 29. When the edge banding belt bonding and splicing area moves to the retaining wheel 27, the third electric cylinder 31 is activated in advance to drive the corresponding mounting rotary seat 30 and drive wheel 28 to move towards the gypsum board, so that the new edge banding belt is bonded to the gypsum board. The cutting component is used to cut both sides of the splicing area of ​​the edge banding belt. The new edge banding belt is conveyed together with the gypsum board. Under the action of the elastic component, the corresponding mounting rotary seat 30 and drive wheel 28 are pushed to drive the old edge banding belt to contact the side end of the gypsum board, so that the joint of the new and old edge banding belts is joined on the side end of the gypsum board during the gradual bonding process.

[0040] Example 2: Based on an automatic edge banding tape splicing device, this example 2 also proposes an automatic edge banding tape splicing method, which specifically includes the following steps: Step 1, Unloading: When the measuring sensor 10 detects that the old edge banding tape on one of the unwinding structures is insufficient, place the new edge banding tape roll on the other unwinding structure on the same side, apply adhesive to the end of the new edge banding tape, and move the end of the edge banding tape into the bending guide cylinder 5. Step 2, Pre-storage: Increase the unwinding speed of the old edge banding tape in a short time to pre-storage a sufficient length of edge banding tape in the storage structure; Step 3, Continuation: Adjust the position of the push plate 17 so that the two curved guide cylinders 5 are close to each other, so that the end of the new edge banding is bonded to the old edge banding through adhesive; Step 4: Cutting: Use the cutting assembly to cut the old edge banding, causing the old edge banding to pull the new edge banding towards the side of the plasterboard; Step 5, Traction: Use the traction assembly to adjust the conveying height of the edge banding belt within the transmission housing 6; Step Six, Edge Sealing: When the edge sealing tape bonding area moves to the holding wheel 27, the third electric cylinder 31 is activated in advance to drive the corresponding mounting base 30 and drive wheel 28 to move towards the gypsum board. The new edge sealing tape is bonded to the gypsum board. The cutting component is used to cut both sides of the bonding area of ​​the edge sealing tape. The new edge sealing tape is conveyed along with the gypsum board. Under the action of the elastic component, the corresponding mounting base 30 and drive wheel 28 are pushed to drive the old edge sealing tape to contact the side end of the gypsum board. As the old edge sealing tape is gradually bonded to the gypsum board, the joint of the new and old edge sealing tapes is joined on the side end of the gypsum board.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An automatic edge sealing tape splicing device, comprising an unwinding frame (1), wherein two unwinding structures for unwinding edge sealing tape rolls are provided on both sides of the unwinding frame (1), and multiple guide slot frames (2) are provided on both sides of the unwinding frame (1), wherein multiple guide wheels (3) are rotatably connected within the guide slot frames (2), characterized in that, Also includes: The guide box (4) is fixedly connected to both sides of the top of the unwinding frame (1). The guide box (4) corresponds to two of the unwinding structures. Two curved guide cylinders (5) are provided on both sides of the bottom of the guide box (4). Each of the two unwinding structures drives the sealing strip through the curved guide cylinders (5) into the guide box (4). The guide housing (4) is equipped with a moving component that drives the two curved guide cylinders (5) to move relative to each other, thereby driving the two sealing strips to stick together. The guide housing (4) is also equipped with a cutting component that cuts one of the sealing strips. The transmission housing (6) is provided on both sides of the bottom of the unwinding frame (1), and the transmission housing (6) is provided with a traction component for traction and connection of the sealing strip. The cutting and bonding structure is set inside the transmission housing (6) to cut off the overlapping area of ​​the two edge banding strips and to bond the broken ends of the two edge banding strips to the side end of the gypsum board.

2. The automatic edge banding tape splicing device according to claim 1, characterized in that, The unwinding structure includes: The mounting side cover (7) is fixedly connected to the unwinding frame (1), and the paper feeding tray (8) is rotatably connected to the mounting side cover (7). The extrusion ring (9) is threaded onto the paper tray (8) to extrude the edge sealing tape roll between the paper tray (8) and the extrusion ring (9); Measurement sensor (10) is provided on the mounting side cover (7) for measuring the amount of sealing tape remaining on the paper tray (8).

3. The automatic edge banding tape splicing device according to claim 2, characterized in that, Both sides of the unwinding frame (1) are provided with tape storage components, the tape storage components including: Fixed slot frame (11) and movable slot frame (12), wherein the fixed slot frame (11) is fixedly connected to the unwinding frame (1); The longitudinal chute (13) is fixedly connected to the unwinding frame (1). The movable chute frame (12) is slidably connected to the longitudinal chute (13) via a sliding block. Multiple transmission wheels (14) are rotatably connected to both the fixed chute frame (11) and the movable chute frame (12). The edge sealing belt is driven between the multiple transmission wheels (14). By adjusting the distance between the fixed chute frame (11) and the movable chute frame (12), the pre-storage of the edge sealing belt is achieved.

4. The automatic edge banding tape splicing device according to claim 3, characterized in that, The bending guide cylinder (5) is set inside the guide housing (4) by an elastic metal clip (15). The position of the bending guide cylinder (5) is adjusted by the deformation of the elastic metal clip (15). Multiple guide rollers (16) are rotatably connected inside the bending guide cylinder (5). The multiple guide rollers (16) are distributed in a triangular area.

5. The automatic edge banding tape splicing device according to claim 4, characterized in that, The moving component includes: Push plate (17), the two sides of which are in contact with the inclined areas of the two curved guide cylinders (5); The first electric cylinder (18) is provided on the unwinding frame (1). The output end of the first electric cylinder (18) is connected to the push plate (17), which drives the push plate (17) to move, squeezes the elastic metal clip (15) to deform, and adjusts the distance between the two curved guide cylinders (5) so that the two sealing strips are attached and connected.

6. The automatic edge banding tape splicing device according to claim 5, characterized in that, The cutting component includes: Cut-off slot (19), the cut-off slot (19) is fixedly connected through the middle of the two curved guide cylinders (5). A sliding bar (20) is provided on the guide housing (4), and a second electric cylinder (21) is provided on the guide housing (4). The sliding bar (20) is provided on the output end of the second electric cylinder (21). A cutting tool (22) is slidably disposed on the sliding strip (20) for cutting one of the edge banding strips.

7. The automatic edge banding tape splicing device according to claim 6, characterized in that, The traction assembly includes: Traction shaft (23), the traction shaft (23) is rotatably connected inside the transmission housing (6), and two traction wheels (24) are fixedly sleeved on the traction shaft (23); The transition wheel (25) is fixedly connected to the transmission housing (6) on the side near the unwinding frame (1), and the transition wheel (25) is rotatably connected inside the transition groove frame. The first motor (26) is provided on the transmission housing (6) to drive the traction shaft (23) to rotate.

8. The automatic edge banding tape splicing device according to claim 7, characterized in that, The cutting and bonding structure includes: The retention wheel (27) is rotatably connected inside the transmission housing (6); The drive wheel (28) has a slot (29) on the side wall of the transmission housing (6). Both sides of the slot (29) are provided with mounting seats (30). The drive wheel (28) is rotatably connected in the mounting seats (30). The connected edge banding moves between the retaining wheel (27) and the two drive wheels (28). A cutting assembly is provided on the transmission housing (6) for cutting off the edge banding joint area; The transmission housing (6) is provided with a third electric cylinder (31) that drives one of the mounting rotary seats (30) to move, and the transmission housing (6) is provided with an elastic component that drives the other mounting rotary seat (30) to move.

9. The automatic edge banding tape splicing device according to claim 8, characterized in that, The cutting assembly includes: Cutting blade (32), the cutting blade (32) is movably disposed within the transmission housing (6); The fourth electric cylinder (33) is provided on the transmission housing (6) to drive the cutting blade (32) to move, and cuts off the edge sealing tape joint area located between the retaining wheel (27) and the two drive wheels (28).

10. An automatic edge banding tape splicing method, using the automatic edge banding tape splicing device as described in claim 9, characterized in that, Includes the following steps: Step 1, Unloading: When the measuring sensor (10) senses that the old edge banding tape on one of the unwinding structures is insufficient, place the new edge banding tape roll on the other unwinding structure on the same side, apply adhesive to the end of the new edge banding tape, and move the end of the edge banding tape into the curved guide cylinder (5). Step 2, Pre-storage: Increase the unwinding speed of the old edge banding tape in a short time to pre-storage a sufficient length of edge banding tape in the storage structure; Step 3, Continuation: Adjust the position of the push plate (17) so that the two curved guide cylinders (5) are close to each other, so that the end of the new edge banding is bonded to the old edge banding through adhesive; Step 4: Cutting: Use the cutting assembly to cut the old edge banding, causing the old edge banding to pull the new edge banding towards the side of the plasterboard; Step 5, Traction: Use the traction assembly to adjust the conveying height of the sealing belt within the transmission housing (6); Step 6, Edge Sealing: When the edge sealing tape is moved to the holding wheel (27) in the bonding area, the new edge sealing tape is bonded to the gypsum board in advance. The cutting component is used to cut the two sides of the bonding area of ​​the edge sealing tape. The new edge sealing tape is transported together with the gypsum board. Under the action of the elastic component, the corresponding mounting turntable (30) and drive wheel (28) are pushed to drive the old edge sealing tape to contact the side end of the gypsum board. As the old edge sealing tape is gradually attached to the gypsum board, the joint of the new and old edge sealing tapes is joined on the side end of the gypsum board to seal the edge of the gypsum board.

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