A chuck for rewinding edge banding strips

Abstract

This utility model relates to a chuck for winding edge banding strips, comprising a mounting shaft, an expansion block, a sliding plate, and a winding wheel. The lower end of the expansion block is located inside the mounting shaft and has a symmetrical inclined structure, while the upper end extends movably upwards from the mounting shaft. The winding wheel consists of at least two separate semi-circular winding blocks. The semi-circular winding blocks are connected to the sliding plate in a rolling or sliding engagement. Under the action of an external force-applying device, the expansion block moves linearly within the mounting shaft to synchronously expand each semi-circular winding block. Each semi-circular winding block is detachably positioned and connected to an external rotary worktable via a spring positioning pin. This utility model is stable and reliable in use, and the clamping and unloading of edge banding strips are extremely convenient. It enables continuous, uninterrupted winding of edge banding strips over long periods, at high frequencies, and in large quantities, improving the winding efficiency of edge banding strips, reducing worker fatigue, ensuring stable winding quality, saving resources, and reducing the winding cost of edge banding strips.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing technology, specifically to a chuck for winding edge banding strips. Background Technology

[0002] The core functions of edge banding include protecting the cross-section of the board, inhibiting formaldehyde release, enhancing aesthetics, and strengthening safety protection. It is an indispensable functional material in modern furniture manufacturing. Currently, the edge banding strips widely used in furniture board products are mainly PVC edge banding strips and ABS edge banding strips. However, in the actual production process of edge banding strips, it is usually necessary to roll up the edge banding strips after manufacturing, printing, drying, and other processes to facilitate packaging, storage, and transportation.

[0003] Traditional edge banding rewinding components typically consist of a rotating shaft and annular baffles fixed at both ends of the shaft. This design usually requires a separate clamping drive to secure the edge banding tip. A motor drives the rewinding mechanism, and gear engagement enables continuous rewinding. However, this design is functionally limited, resulting in poor applicability. It's inconvenient to clamp the material, and after one rewind, it cannot be unwound. The rewinding material must be packaged and stored or transported as a single unit, meaning a new rewinding is required after each roll. The edge banding rewinding component is used to fix and rewind the edge banding for the next time. In other words, this traditional edge banding rewinding component can only be used once on site and cannot achieve continuous and uninterrupted rewinding over a long period of time. Although the cost of a single edge banding rewinding component is very low, it cannot efficiently and quickly clamp and unload the edge banding when used in large batches, frequently, and for long periods of time. This seriously increases the fatigue intensity of workers, easily leads to unstable rewinding quality, low edge banding rewinding efficiency, and also causes serious waste of resources. Therefore, the overall cost of use is very high and cannot meet the needs of large batches, frequent, and long-term edge banding rewinding.

[0004] In conclusion, it is necessary to further improve or innovate existing technologies. Summary of the Invention

[0005] To address the problems existing in the aforementioned background technology, this utility model proposes a chuck for edge banding strip winding. Its structure is reasonable and compact, and its use is stable and reliable. In particular, the clamping and unloading of edge banding strips is extremely convenient, enabling continuous and uninterrupted winding of edge banding strips over long periods, at high frequencies, and in large quantities. This significantly improves the winding efficiency of edge banding strips, significantly reduces worker fatigue, ensures stable winding quality of edge banding strips, saves resource consumption, and significantly reduces the winding cost of edge banding strips.

[0006] In particular, the winding reel can quickly gather or expand, achieving efficient winding or unwinding of the edge banding strip, significantly improving the production efficiency of the edge banding strip. At the same time, it is easy to assemble and disassemble and use, and can be widely used in edge banding strip winding equipment of different types or sizes, reducing the winding cost of edge banding strip.

[0007] To solve the above-mentioned technical problems, this utility model provides a chuck for winding edge banding strips, which includes a mounting shaft, an expansion block, a sliding plate, and a winding wheel; the upper end of the mounting shaft is detachably connected to the power output end of an external axial force application drive device; the interior of the mounting shaft has a cavity for accommodating the expansion block, and a through hole extending into the cavity is provided axially from the top; the expansion block is matched and installed between the mounting shaft and the sliding plate, its lower end is located inside the mounting shaft and has a symmetrical inclined structure, and its upper end moves through the through hole and extends upwards towards the mounting shaft, with the extended end connected to the power output end of the external expansion block force application device; the sliding plate is fixedly installed at the bottom of the mounting shaft;

[0008] The take-up reel consists of at least two separate semi-circular take-up blocks; the semi-circular take-up blocks are symmetrically distributed on the slide plate and are connected to the slide plate in a rolling or sliding engagement; the expansion block moves linearly in the mounting shaft under the action of an external expansion block force application device, and makes pressing contact with each of the semi-circular take-up blocks through the inclined structure at its lower end, so as to synchronously expand each of the semi-circular take-up blocks; each of the semi-circular take-up blocks is detachably positioned and connected to an external rotary table through a spring positioning pin, so that the take-up reel rotates synchronously with the external rotary table; each of the semi-circular take-up blocks is connected to each other through a return spring. After the external force on the upper end of the expansion block is removed, each of the semi-circular take-up blocks gathers and returns to its original position under the elastic force of the return spring, and the inclined structure at the lower end of the expansion block disengages from the semi-circular take-up block or makes zero-force contact with it under the reverse pressing force of the semi-circular take-up block.

[0009] The chuck for winding the edge banding strip includes: an edge banding strip clamping piece installed on one side of the mounting shaft; the lower end of the edge banding strip clamping piece extending vertically to the outer circumference of the winding wheel; when the winding wheel is in a converged state, a gap is left between its outer circumference and the edge banding strip clamping piece, allowing the edge banding strip to move through; when the winding wheel is in an expanded state, the edge banding strip is clamped between the outer circumference of the semi-circular winding block and the edge banding strip clamping piece.

[0010] The chuck used for winding the edge banding strip, wherein the upper end of the expansion block is connected to the power output end of the external expansion block force application device by a hinge.

[0011] The chuck for winding the edge banding strip includes: a cross-shaped groove formed by horizontal and vertical intersections in the middle area of ​​the sliding plate; at least one pair of bearing assemblies installed in the longitudinal slot of the groove on the sliding plate; each semi-circular winding block is assembled and fixed with the corresponding bearing assembly; under the external force applied by the external force-applying device, the expansion block rolls and presses against the bearing assembly through its lower inclined structure and its end extends into the transverse slot of the groove to avoid collision, so as to synchronously expand the bearing assembly and the semi-circular winding block; after the external force on the upper end of the expansion block is removed, the inclined structure at the lower end of the expansion block disengages from the semi-circular winding block or comes into zero-force contact with it under the reverse pressing force of the bearing assembly.

[0012] The chuck for winding the edge banding strip includes: each bearing assembly consisting of a winding wheel mounting plate, a winding wheel positioning post, a guide plate, and a bearing body; each semi-circular winding block has a spring pin mounting groove for mounting the spring positioning pin assembly in a vertical direction; the winding wheel mounting plate has a spring pin positioning groove corresponding to the spring pin mounting groove on one side near the center of the slide plate, and a winding wheel mounting hole on the side away from the center of the slide plate; the winding wheel positioning post is vertically fixed to the bottom of the winding wheel mounting plate; the guide plate is vertically fixed to the top center of the winding wheel mounting plate and is movably engaged in the longitudinal slot of the slide groove, and the bearing bodies are symmetrically installed on the opposite side walls at its upper and lower ends; the bearing bodies located at the upper and lower ends of the guide plate are respectively in rolling contact with the upper and lower surfaces of the slide plate located around the slide groove.

[0013] The chuck for winding the edge banding strip includes: a winding wheel fixing hole corresponding to the winding wheel mounting hole and a winding wheel positioning groove corresponding to the winding wheel positioning post on the semi-circular winding block; the semi-circular winding block is connected to the winding wheel positioning post through the winding wheel positioning groove, and is connected to the winding wheel mounting hole through the winding wheel fixing hole with fasteners, so as to finally position and fix the semi-circular winding block to the winding wheel mounting plate.

[0014] The chuck for winding the edge banding strip includes: the mounting shaft comprising a lower bushing and an upper bushing; the lower bushing has a cavity inside that can accommodate the expansion block, with an open bottom and a bearing clearance groove on the bottom side wall to avoid the bearing body; the upper bushing is vertically fixed to the top center of the lower bushing, and has a through hole extending axially from the top center for the upper end of the expansion block to move through; the middle bushing has a mounting hole extending radially and is connected to the power output end of an external axial force driving device via the mounting hole and fasteners.

[0015] The chuck for winding the edge banding strip includes: the expansion block comprising an expansion block body and a connecting rod detachably and fixedly installed on the upper part of the expansion block body; the expansion block body is movably housed in the internal cavity of the expansion block body, and its lower part has a symmetrical inclined structure on its two opposite sides; the upper end of the connecting rod passes through the mounting shaft and extends outward therefrom, and the extended end is hinged to the power output end of the external expansion block force application device.

[0016] The chuck used for winding the edge banding strip includes a spring pin positioning hole and a mounting hole in the area surrounding the slide groove. The slide is fixedly installed to the bottom of the lower bushing through the mounting hole with fasteners.

[0017] The chuck for winding edge banding strips is characterized in that: the spring positioning pin includes a spring sleeve, a positioning pin, and a spring installed in the spring sleeve; the spring sleeve is fixedly installed in the spring pin positioning hole, the spring pin positioning groove, and the spring pin mounting groove; one end of the positioning pin extends into the spring sleeve and abuts against the end of the spring installed in the spring sleeve, and the other end of the positioning pin extends downwards from the winding wheel and is detachably positioned and connected to the rotatable worktable below.

[0018] By adopting the above technical solution, this utility model has the following beneficial effects:

[0019] This utility model features a chuck structure for edge banding strip winding that is rationally and compactly designed, and stable and reliable in use. In particular, the combination of components such as the mounting shaft, expansion block, sliding plate, bearing assembly, and edge banding strip clamping plate enables rapid convergence or expansion of the winding roller. The spring positioning pin allows for quick and stable positioning and connection with an external rotary worktable. Compared to existing edge banding strip winding components, clamping and unloading the edge banding strip is extremely convenient and fast, achieving a seamless and efficient process for clamping, winding, and unloading the edge banding strip. This system enables continuous, uninterrupted winding of edge banding strips over long periods, at high frequencies, and in large quantities, greatly improving winding efficiency, significantly reducing worker fatigue, ensuring stable winding quality, saving resources, and significantly reducing winding costs. Furthermore, the entire chuck is extremely easy to assemble and disassemble, allowing for convenient detachable connection with external drive or force-applying devices. This facilitates replacement and subsequent maintenance, effectively meeting the needs for large-volume, high-frequency, and long-cycle winding of edge banding strips, making it suitable for widespread application. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the chuck used for winding edge banding strips according to this utility model;

[0022] Figure 2 This is a front view of the chuck used for winding edge banding strips according to this utility model;

[0023] Figure 3 This is a top view of the chuck used for winding edge banding strips according to this utility model;

[0024] Figure 4 This is a left view of the chuck used for winding edge banding strips according to this utility model;

[0025] Figure 5 This is a partial exploded view of the chuck used for winding edge banding strips according to this utility model;

[0026] Figure 6 This is an exploded view of the winding wheel of the chuck used for winding edge banding strips according to this utility model. Detailed Implementation

[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] The present invention will be further explained below with reference to specific embodiments.

[0029] like Figure 1-6 As shown in the figure, this embodiment provides a chuck for winding edge banding strips, including a mounting shaft 1, a tension block 2, a sliding plate 3, a bearing assembly 4, a winding wheel 6, and an edge banding strip clamp 7.

[0030] The mounting shaft 1 includes a lower bushing 11 and an upper bushing 12. The lower bushing 11 is hollow with an open bottom. A pair of bearing clearance grooves 111 are symmetrically formed on opposite side walls at its bottom end. A pair of clamping holes 112 are formed on the upper side wall of one of the bearing clearance grooves 111. The upper bushing 12 is vertically fixed to the top center of the lower bushing 11. Its upper end is detachably connected to the power output end of an external axial force application drive device. A through hole 121 is formed axially from the top center. In this embodiment, a pair of mounting holes 122 are formed radially at the upper end of the upper bushing 12, and fasteners are used to fix it to the power output end of the external axial force application drive device. When the upper end of the upper bushing 12 is connected to the power output end of an axial force application drive device (such as a cylinder), the mounting shaft 1 can be driven by the axial force application drive device to achieve lifting and lowering.

[0031] The expansion block 2 is matched and installed between the mounting shaft 1 and the slide plate 3. It includes an expansion block body 21 and a connecting rod 22 fixedly installed on the upper part of the expansion block body 21. The lower part of the expansion block body 21 is conical, that is, the two sides are symmetrical inclined structures. The connecting rod 22 is vertically fixed to the top center of the expansion block body 21. Its upper end passes through the inner cavity of the lower bushing 11, the inner cavity of the upper bushing 12, and the through hole 121 at the top of the upper bushing 12 from bottom to top and extends out of the outer side of the upper bushing 12. The top end of the connecting rod 22 is detachably hinged to the power output end of the external expansion block force application device. The expansion block 2 moves linearly in the mounting shaft 1 under the drive of the external expansion block force application device. In this embodiment, the top end of the connecting rod 22 can be hinged to the power output shaft of the external expansion block force application device through a bearing to realize that the expansion block 2 moves linearly in the mounting shaft 1 under the drive of the external expansion block force application device. When rotating, the external expansion block force application device does not rotate with it. In this embodiment, a spherical protrusion 221, resembling a steel ball, is provided at the center of the top of the connecting rod 22. The top of the connecting rod 22 is in movable contact with a circular groove on the end face of the power output shaft of the external expansion block force application device through the spherical protrusion 221. This allows the expansion block 2 to extend and retract linearly under the drive of the external expansion block force application device, without causing the external expansion block force application device to rotate during rotation. Furthermore, the power output shaft of the external expansion block force application device can be fixed by a limiting component, further ensuring that the external expansion block force application device does not rotate with the expansion block 2. This method is more cost-effective. The expansion block body 21 and the connecting rod 22 can be an integral structure. In this embodiment, the expansion block body 21 and the connecting rod 22 adopt a detachable split structure. Specifically, the expansion block body 21 has a connecting rod insertion hole from the top center inward, and a connecting rod fixing hole that passes through to the connecting rod insertion hole is opened in the middle of a set of opposite sides. The lower end of the connecting rod 22 is inserted into the connecting rod insertion hole and locked and fixed to the expansion block body 21 by fasteners through the connecting rod fixing hole.

[0032] The slide plate 3 is fitted to the bottom of the lower bushing 11 of the mounting shaft 1, and a cross-shaped groove 31 is provided in the center of the slide plate 3. A pair of spring pin positioning holes 311 are symmetrically provided on the outer sides of the horizontal slots of the groove 31. A pair of mounting holes 312 are symmetrically provided on the opposite sides of each spring pin positioning hole 311, and fasteners are used to assemble and connect the slide plate 3 to the bottom of the lower bushing 11 of the mounting shaft 1 through the mounting holes 312.

[0033] The bearing assembly 4 is matched and movably mounted in the longitudinal slot of the slide groove 31 of the slide plate 3. In this embodiment, the bearing assembly 4 has a pair that are matched and symmetrically movably mounted in the longitudinal slot of the slide groove 31 of the slide plate 3; wherein, each bearing assembly 4 includes a take-up wheel mounting plate 41, a pair of take-up wheel positioning pins 42, a guide plate 43, and a bearing body 44. The take-up reel mounting plate 41 has a pair of semi-circular spring pin positioning grooves 411 symmetrically formed on one side near the center of the slide plate 3; the take-up reel mounting plate 41 has a pair of take-up reel mounting holes 412 symmetrically formed on the side away from the center of the slide plate 3; the pair of take-up reel positioning pins 42 are vertically fixed to the bottom of the middle section of the take-up reel mounting plate 41; the guide plate 43 is vertically fixed to the top center of the take-up reel mounting plate 41 and is slidably engaged in the longitudinal slot of the slide groove 31 of the slide plate 3, with bearing bodies 44 symmetrically installed on its upper end relative to the two side walls, and bearing bodies 44 are also symmetrically installed on its lower end relative to the two side walls; the bearing body 44 at the upper end of the guide plate 43 is in rolling contact with the upper surface of the slide plate 3 located beside the longitudinal slot of the slide groove 31, and the bearing body 44 at the lower end of the guide plate 43 is in rolling contact with the lower surface of the slide plate 3 located beside the longitudinal slot of the slide groove 31.

[0034] The take-up reel 6 is fixedly installed at the bottom of the take-up reel mounting plate 41 of the bearing assembly 4. In this embodiment, the take-up reel 6 is composed of two separate semi-circular take-up blocks 61. The two semi-circular take-up blocks 61 are respectively matched and fixedly installed at the bottom of the take-up reel mounting plates 41 of a pair of bearing assemblies 4 and are connected to each other by a return spring. Specifically, the two semi-circular take-up blocks 61 are respectively assembled and fixed at the bottom of the pair of take-up reel mounting plates 41 by fasteners through the take-up reel mounting holes 412 on the take-up reel mounting plates 41 of the pair of bearing assemblies 4.

[0035] In this embodiment, each of the two semi-circular winding blocks 61 has a matching reset spring mounting groove at its bottom, and a reset spring is fitted into the reset spring mounting groove. The reset spring does not protrude outward from the reset spring mounting groove, and its two ends are fixedly connected to the reset spring mounting grooves at the bottom of the two semi-circular winding blocks 61. When winding the edge sealing strip, the two semi-circular winding blocks 61 are separated from each other and the reset spring is in a stretched state. When the edge sealing strip is finished winding or before winding, the two semi-circular winding blocks 61 close together under the elastic tension of the reset spring to form a disc shape.

[0036] In this embodiment, the two semi-circular winding blocks 61 are respectively provided with spring pin mounting grooves 611 that match the spring pin positioning grooves 411 on the winding wheel mounting plate 41 of the bearing assembly 4.

[0037] The two semi-circular take-up blocks 61 are also provided with take-up wheel fixing holes 612 that match the take-up wheel mounting holes 412 on the take-up wheel mounting plate 41 of the bearing assembly 4, and take-up wheel positioning grooves 613 that match the take-up wheel positioning pins 42 on the take-up wheel mounting plate 41. Each semi-circular take-up block 61 is connected to the take-up wheel positioning pins 42 on the take-up wheel mounting plate 41 through the take-up wheel positioning grooves 613. At the same time, each semi-circular take-up block 61 is connected to the take-up wheel mounting holes 412 on the take-up wheel mounting plate 41 through the take-up wheel fixing holes 612 with fasteners, so as to finally assemble and fix the semi-circular take-up blocks 61 and the take-up wheel mounting plate 41.

[0038] In this embodiment, the lower part of the chuck used for winding the edge banding strip is also provided with a spring positioning pin 5, which is positioned and connected to a rotating worktable outside the spring positioning pin 5. In this embodiment, the spring positioning pin 5 has a pair of spring pin positioning holes 311 of the slide plate 3, spring pin positioning grooves 411 on the pair of winding wheel mounting plates 41 of the bearing assembly 4, and spring pin mounting grooves on the two semi-circular winding blocks 61 of the winding wheel 6, respectively matched and inserted from top to bottom. It includes a spring sleeve 51, a positioning pin 52, and a spring installed in the spring sleeve 51. The spring sleeve 51 is located in the spring pin positioning hole 311, the spring pin positioning groove 411, and the spring pin mounting groove, and is limited by the washers at the openings of the spring pin mounting grooves 611 at the bottom of the two semi-circular take-up blocks 61 of the take-up reel 6 to prevent the spring sleeve 51 from falling out of the take-up reel 6; one end of the positioning pin 52 is located inside the spring sleeve 51 and is in close contact with the end of the spring installed inside the spring sleeve 51, and the other end of the positioning pin 52 passes through the spring pin mounting groove 611 and the washer of the take-up reel 6 and extends downwards from the take-up reel 6; the take-up reel 6 is positioned in a timely manner by the positioning pin 52 and the rotatable worktable below it.

[0039] The edge banding clip 7 is fixedly installed on one side of the lower bushing 11 of the mounting shaft 1. Specifically, the upper end of the clip is fixedly connected to one side of the lower bushing 11 of the mounting shaft 1 through the clip fixing hole 112 with a fastener. The lower end of the edge banding clip 7 extends to the outer circumference of the take-up wheel 6. When the take-up wheel 6 is in the gathered state, there is a gap between its outer circumference and the edge banding clip 7, which allows the edge banding to move through. When the two semi-circular take-up blocks 61 of the take-up wheel 6 expand, the edge banding can be clamped between the outer circumference of the take-up wheel 6 and the edge banding clip 7.

[0040] The principle of using the chuck of this utility model for edge banding strip winding is as follows:

[0041] Before winding the edge banding strip, the upper bushing 12 of the mounting shaft 1 is detachably connected to the power output end of the external axial force driving device through the assembly hole 122 with fasteners. When winding begins, the chuck of this utility model for winding the edge banding strip is brought to the designated position on the external rotary table by the external axial force driving device and positioned on the external rotary table by the spring positioning pin 5. Then, the edge banding strip is pulled to the outer circumference of the winding wheel 6. In the initial state, the upper end of the connecting rod 22 of the expansion block 2 extends outward of the upper bushing 12. The external expansion block force application device applies force to the end of the connecting rod 22 of the expansion block 2 that extends upward of the upper bushing 12 of the mounting shaft 1, so that the expansion block 2 moves linearly in the mounting shaft 1 and the connecting rod 22 of the expansion block 2 retracts into the mounting shaft 1. At the same time, the inclined structure at the lower end of the expansion block body 21 extends into the transverse groove of the slide groove 31 of the slide plate 3. During the insertion of the expansion block body 21 into the transverse slot of the slide groove 31, the lower slope of the expansion block body 21 will contact the bearing body 44 of the bearing assembly 4 and push the bearing body 44 to slide horizontally along the upper and lower surfaces of the slide plate 3. This will cause the take-up wheel mounting plates 41 of the pair of bearing assemblies 4 to move away from each other in the horizontal direction. The take-up wheel mounting plates 41 are fixedly assembled with the semi-circular take-up blocks 61 of the take-up wheel 6. Therefore, while the take-up wheel mounting plates 41 of the pair of bearing assemblies 4 move away from each other in the horizontal direction, the pair of semi-circular take-up blocks 61 of the take-up wheel 6 also move away from each other in the horizontal direction and together with the edge sealing strip clamping piece 7, clamp the edge sealing strip to the outer circumference of the take-up wheel 6. At this time, the return spring is in a stretched state. When the external rotating worktable rotates, it can rotate the take-up wheel 6 together to perform edge sealing strip winding. After one winding is completed, the external force-applying device is removed from the connecting rod 22 of the expansion block 2, thus removing the external force. The semi-circular winding block 61 quickly gathers and resets under the elastic force of the return spring and detaches from the edge sealing strip roll. At the same time as the semi-circular winding block 61 gathers and resets, the winding wheel mounting plate 41 also gathers, thereby driving the bearing assembly 4 to apply a reverse squeezing force to the expansion block body 21 of the expansion block 2, forcing the expansion block 2 as a whole to move linearly in the mounting shaft 1 and detach from the bearing assembly 4 or make zero-force contact with the bearing assembly 4 to return to the initial state. Finally, the chuck used for edge sealing strip winding of this utility model is pulled back to the initial position above the edge sealing strip roll by the external axial force driving device, and the edge sealing strip roll that has been wound once can be removed. Each subsequent winding can be started by following the above winding process. Before the chuck used for edge sealing strip winding of this utility model is damaged or changed, the same chuck can be used repeatedly for multiple edge sealing strip windings without replacement in between.

[0042] This utility model has a simple and reasonable structural design, is easy to use and has good results. Through the coordinated use of components such as expansion blocks, sliding plates and bearing assemblies, it can quickly and flexibly realize the contraction and expansion of the winding wheel, efficiently and stably complete the winding of the edge sealing strip, improve the winding efficiency of the edge sealing strip, and reduce the cost of winding edge sealing strips in large batches and in high frequency. It is suitable for promotion and application.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A chuck for edge strip winding, characterized by: The chuck includes a mounting shaft (1), a jack (2), a slide plate (3), and a take-up reel (6); The upper end of the mounting shaft (1) is detachably connected to the power output end of the external axial force driving device; the interior of the mounting shaft (1) has a cavity for accommodating the expansion block (2), and a through hole (121) is provided axially from the top to the cavity. The expansion block (2) is matched and installed between the mounting shaft (1) and the sliding plate (3). Its lower end is located inside the mounting shaft (1) and has a symmetrical inclined structure. Its upper end moves through the through hole (121) and extends upward to the mounting shaft (1), and the extended end is connected to the power output end of the external expansion block force application device. The slide plate (3) is fixedly installed on the bottom of the mounting shaft (1); The take-up reel (6) is composed of at least two separate semi-circular take-up blocks (61); the semi-circular take-up blocks (61) are symmetrically distributed on the slide plate (3) and are connected to the slide plate (3) in a rolling or sliding engagement; the expansion block (2) moves linearly in the mounting shaft (1) under the action of external force applied by the external expansion block force application device, and makes contact with each of the semi-circular take-up blocks (61) through the inclined structure at the lower end, so as to synchronously expand each of the semi-circular take-up blocks (61); each of the semi-circular take-up blocks (61) is elastically... The spring positioning pin (5) is detachably positioned and connected to the external rotary table so that the winding wheel (6) rotates synchronously with the external rotary table; each of the semi-circular winding blocks (61) is connected to each other by a reset spring. After the external force on the upper end of the expansion block (2) is removed, each of the semi-circular winding blocks (61) gathers and resets under the elastic force of the reset spring, while the inclined structure at the lower end of the expansion block (2) disengages from the semi-circular winding block (61) or comes into contact with it with zero force under the reverse extrusion force of the semi-circular winding block (61).

2. The chuck for edge strip winding as claimed in claim 1, characterized in that: A sealing strip clip (7) is also installed on one side of the mounting shaft (1); the lower end of the sealing strip clip (7) extends vertically to the outer circumference of the winding wheel (6); when the winding wheel (6) is in the gathered state, there is a gap between its outer circumference and the sealing strip clip (7) for the sealing strip to move through; when the winding wheel (6) is in the expanded state, the sealing strip is clamped between the outer circumference of the semi-circular winding block (61) and the sealing strip clip (7).

3. The chuck for edge strip winding as recited in claim 1, wherein: The upper end of the expansion block (2) is connected to the power output end of the external expansion block force application device by a hinge.

4. The chuck for edge strip winding of claim 1, wherein: The middle area of ​​the slide plate (3) is provided with a cross-shaped groove (31) that is intersected horizontally and vertically; at least one pair of bearing assemblies (4) are installed on the slide plate (3) at the longitudinal slot of the groove (31); each of the semi-circular winding blocks (61) is assembled and fixed with the corresponding bearing assembly (4); under the action of external force applied by the external force application device, the expansion block (2) rolls and presses against the bearing assembly (4) through the inclined structure at its lower end and extends into the transverse slot of the groove (31) to avoid collision, so as to expand the bearing assembly (4) and the semi-circular winding block (61) simultaneously; after the external force at the upper end of the expansion block (2) is removed, the inclined structure at the lower end of the expansion block (2) disengages from the semi-circular winding block (61) or contacts it with zero force under the reverse pressing force of the bearing assembly (4).

5. The chuck for edge strip winding as recited in claim 4 wherein: Each of the bearing assemblies (4) consists of a take-up reel mounting plate (41), a take-up reel positioning post (42), a guide plate (43), and a bearing body (44); Each of the semi-circular winding blocks (61) has a spring pin mounting groove (611) in the vertical direction for mounting the spring positioning pin (5). The take-up wheel mounting plate (41) has a spring pin positioning groove (411) that matches the spring pin mounting groove (611) on one side near the center of the slide plate (3), and a take-up wheel mounting hole (412) on the side away from the center of the slide plate (3). The winding wheel positioning post (42) is vertically fixed to the bottom of the winding wheel mounting plate (41); The guide plate (43) is vertically fixed at the top center of the winding wheel mounting plate (41) and is movably locked in the longitudinal slot of the slide groove (31). The bearing bodies (44) are symmetrically installed on the opposite side walls at the upper and lower ends of the guide plate (43). The bearing bodies (44) located at the upper and lower ends of the guide plate (43) are respectively in rolling contact with the upper and lower surfaces of the slide plate (3) located around the slide groove (31).

6. The chuck for edge strip winding as recited in claim 5, wherein: The semi-circular take-up block (61) is also provided with a take-up wheel fixing hole (612) that matches the take-up wheel mounting hole (412) and a take-up wheel positioning groove (613) that matches the take-up wheel positioning post (42). The semi-circular take-up block (61) is connected to the take-up wheel positioning post (42) through the take-up wheel positioning groove (613), and is connected to the take-up wheel mounting hole (412) through the take-up wheel fixing hole (612) with fasteners, so as to finally position and fix the semi-circular take-up block (61) and the take-up wheel mounting plate (41).

7. The chuck for edge strip winding as recited in claim 5 wherein: The mounting shaft (1) includes a lower bushing (11) and an upper bushing (12); The lower bushing (11) has a cavity inside that can accommodate the expansion block (2), with an open bottom and a bearing clearance groove (111) on the bottom side wall for avoiding the bearing body (44). The upper bushing (12) is vertically fixed to the top center of the lower bushing (11). It has a through hole (121) axially extending from the top center for the upper end of the expansion block (2) to move through. The middle bushing has an assembly hole (122) radially and is assembled and connected to the power output end of the external axial force driving device through the assembly hole (122) with fasteners.

8. The chuck for edge strip winding as recited in claim 7 wherein: The expansion block (2) includes an expansion block body (21) and a connecting rod (22) that is detachably fixed to the upper part of the expansion block body (21). The expansion block body (21) is movably housed in the internal cavity of the expansion block body (21), and its lower part has a symmetrical inclined structure on both sides. The upper end of the connecting rod (22) passes through the mounting shaft (1) and extends outward, with the extended end hinged to the power output end of the external expansion block force application device.

9. The chuck for edge strip winding of claim 7, wherein: The slide plate (3) is also provided with a spring pin positioning hole (311) and a mounting hole (312) in the area outside the slide groove (31); the slide plate (3) is fixedly installed on the bottom of the lower bushing (11) through the mounting hole (312) with fasteners.

10. The chuck for edge strip winding as recited in claim 9, wherein: The spring positioning pin (5) includes a spring sleeve (51), a positioning pin (52), and a spring installed in the spring sleeve (51); The spring sleeve (51) is fixedly installed in the spring pin positioning hole (311), the spring pin positioning groove (411) and the spring pin mounting groove (611); One end of the positioning pin (52) extends into the spring sleeve (51) and presses against the end of the spring installed in the spring sleeve (51). The other end of the positioning pin (52) extends downward to the winding wheel (6) and is detachably positioned and connected to the rotatable worktable below.

Images