Simple top clamp assembly

By using a detachable conical toothed sleeve design for the simplified clamping chuck assembly, combined with a connecting seat and a limiting rod structure, the problem of difficult disassembly and assembly of traditional clamping conical toothed sleeves is solved, enabling quick replacement and stable positioning, thereby improving production efficiency and equipment maintenance convenience.

CN224577678UActive Publication Date: 2026-07-31CHUZHOU JINWEI EXTRUSION EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHUZHOU JINWEI EXTRUSION EQUIPMENT CO LTD
Filing Date
2025-09-29
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The existing chuck structure has difficulties in disassembling and assembling the bevel gear sleeve, resulting in time-consuming and labor-intensive replacement, which affects production efficiency and equipment maintenance efficiency.

Method used

It adopts a detachable conical sleeve design, combined with a connecting seat, positioning block, wedge block and limit rod, etc. It achieves quick disassembly and stable positioning through limit extrusion parts, and uses a booster cylinder to drive the movement of the mounting plate and the power source to transmit power.

Benefits of technology

It enables quick assembly and disassembly and stable positioning of the tapered sleeve, improves production changeover efficiency, reduces maintenance costs, and enhances the ease of operation and winding accuracy of the chuck.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a simplified clamping chuck assembly, belonging to the technical field of chuck assemblies. It includes a mounting plate, with a clamping shaft rotatably connected to one side of the mounting plate. A detachable conical sleeve is provided at the end of the clamping shaft away from the mounting plate. A connecting seat is provided between the clamping shaft and the conical sleeve. By setting up the detachable conical sleeve, and in conjunction with the positioning block, wedge block, and limit rod on the connecting seat, quick assembly / disassembly and reliable positioning of the conical sleeve are achieved. Rotating the limit clamping component drives the wedge block to lock or release the positioning block. The operation is simple and quick, effectively solving the problems of difficult assembly / disassembly and time-consuming replacement of traditional chuck conical sleeves. Simultaneously, the design of the elastic element and the conical ring ensures the continuous and stable constraint of the limit rod on the positioning block, improving the installation stability of the conical sleeve under high-speed rotation conditions. This not only brings convenience to the assembly / disassembly of the conical sleeve on the chuck but also reduces maintenance costs and improves production changeover efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of clamp assembly technology, and in particular to a simple clamping clamp assembly. Background Technology

[0002] In the production and processing of flexible materials such as films, paper, and metal foils, the winding process is a core link in ensuring product quality and achieving continuous production. Its core function is to neatly and tightly wind the processed flexible material onto a winding shaft, forming a roll that meets the requirements for subsequent storage, transportation, or secondary processing. The winding accuracy, stability, and ease of operation of the winding equipment directly depend on the support positioning and power transmission performance of the winding shaft. As a key component that directly contacts the winding shaft, the design rationality of the chuck has a decisive impact on the efficiency of the winding process and the quality of the finished roll.

[0003] In existing technologies, in traditional chuck structures, the bevel gear sleeve and the chuck body (such as the clamping shaft) are often connected in a fixed manner, commonly by welding or bolts. However, when the bevel gear sleeve wears out after long-term use, or when it is necessary to replace it with a suitable bevel gear sleeve according to different specifications of the take-up shaft, the problem of quick disassembly and replacement arises. This disassembly and replacement process is not only time-consuming and labor-intensive, causing inconvenience to the disassembly and assembly of the bevel gear sleeve on the chuck, but also has an adverse effect on the efficiency of production changeover and equipment maintenance. Utility Model Content

[0004] The main purpose of this utility model is to provide a simple clamping head assembly, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A simple clamping chuck assembly includes a mounting plate, one side of which is rotatably connected to a clamping shaft;

[0007] The end of the clamping shaft away from the mounting plate is provided with a detachable conical sleeve;

[0008] A connecting seat is provided between the clamping shaft and the bevel gear sleeve. The connecting seat has a threaded post for fixing the clamping shaft on the side away from the bevel gear sleeve. The bevel gear sleeve is positioned and inserted into the connecting seat through a positioning block. The positioning block is fixedly connected to the side of the bevel gear sleeve near the connecting seat. A movable opening is opened on one side of the connecting seat. A wedge block is slidably connected in the movable opening. A limiting rod for restricting the positioning block is provided on one side of the wedge block. Sliding grooves are opened on both sides of the inner wall of the movable opening. An elastic element for controlling the reset of the wedge block is provided in the sliding groove.

[0009] The threaded column is provided with a limiting extrusion member on its exterior to push the two positioning blocks to move in opposite directions.

[0010] Preferably, a booster cylinder is installed on one side of the mounting plate. The booster cylinder is arranged horizontally and symmetrically to drive the mounting plate to move horizontally. A support cylinder is fitted on the outside of the tightening shaft. The support cylinder is slidably connected to the tightening shaft. A power source for driving the tightening shaft to rotate is fixedly connected to the outside of the tightening shaft.

[0011] Preferably, the elastic element includes a fixing rod, which is fixedly connected to the slide groove. A spring is fitted on the outside of the fixing rod. Slider blocks that are slidably connected to the slide groove are fixedly connected to both sides of the wedge block. A guide hole is opened at the top of the slider to guide and cooperate with the fixing rod. The spring is fixedly connected between the opposite surfaces of the slider and the slide groove. The limiting rod is fixedly connected to the outer wall of the wedge block.

[0012] Preferably, the outer wall of the connecting seat is provided with a positioning port for insertion into the positioning block, and a connecting hole communicating with the movable port is provided in the positioning port. The limiting rod passes through the connecting hole and is inserted into the limiting hole opened on the top of the positioning block.

[0013] Preferably, the limiting and pressing component includes a knob and a conical ring. The connecting seat has a groove on the side near the tightening shaft. The threaded column is fixedly connected between the groove and the opposite face of the tightening shaft. The knob has a threaded hole on its side wall. The threaded hole is threadedly connected to the threaded column. The conical ring is fixedly connected to the knob on the side near the connecting seat. The conical ring is fitted onto the outside of the threaded column.

[0014] Preferably, the inclined surface of the wedge block is an arc-shaped inclined surface that fits against the inclined conical surface of the conical ring.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] By incorporating a detachable conical sleeve, along with a positioning block, wedge block, and limit rod on the connecting seat, the conical sleeve can be quickly disassembled and reliably positioned. Rotating the limit clamping component drives the wedge block to lock or release the positioning block. This simple and quick operation effectively solves the problems of difficult disassembly and time-consuming replacement of traditional chuck conical sleeves. At the same time, the design of the elastic element and the conical ring ensures the continuous and stable constraint of the limit rod on the positioning block, improving the installation stability of the conical sleeve under high-speed rotation conditions. This not only makes the disassembly and use of the conical sleeve on the chuck more convenient but also reduces maintenance costs and improves production changeover efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic plan view of the overall structure of this utility model;

[0019] Figure 3 This is a cross-sectional schematic diagram of the connector of this utility model;

[0020] Figure 4 This is a partial structural breakdown diagram of the present invention;

[0021] Figure 5 This is a schematic diagram of the conical tooth sleeve of this utility model.

[0022] In the diagram: 1. Mounting plate; 2. Boost cylinder; 3. Support cylinder; 4. Tightening shaft; 5. Power source; 6. Bevel gear sleeve; 7. Connecting seat; 8. Groove; 9. Threaded column; 10. Positioning port; 11. Movable port; 12. Slide groove; 13. Connecting hole; 14. Knob; 15. Screw hole; 16. Conical ring; 17. Fixing rod; 18. Spring; 19. Wedge block; 20. Slider; 21. Guide hole; 22. Limiting rod; 23. Positioning block; 24. Limiting hole. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figure 1 - Figure 5 As shown, the simple clamping clamp assembly includes a mounting plate 1, and a clamping shaft 4 is rotatably connected to one side of the mounting plate 1;

[0025] The end of the clamping shaft 4 away from the mounting plate 1 is provided with a detachable bevel sleeve 6;

[0026] A connecting seat 7 is provided between the clamping shaft 4 and the bevel sleeve 6. A threaded post 9 for fixing the clamping shaft 4 is provided on the side of the connecting seat 7 away from the bevel sleeve 6. The bevel sleeve 6 is positioned and inserted into the connecting seat 7 through a positioning block 23. The positioning block 23 is fixedly connected to the side of the bevel sleeve 6 near the connecting seat 7. A movable opening 11 is opened on one side of the connecting seat 7. A wedge block 19 is slidably connected in the movable opening 11. A limiting rod 22 for limiting the positioning block 23 is provided on one side of the wedge block 19. Slide grooves 12 are opened on both sides of the inner wall of the movable opening 11. An elastic element for controlling the reset of the wedge block 19 is provided in the slide groove 12.

[0027] The threaded column 9 is provided with a limiting clamp on the outside for pushing the two positioning blocks 23 to move in opposite directions.

[0028] like Figure 1 and Figure 2As shown, a booster cylinder 2 is installed on one side of the mounting plate 1. The booster cylinder 2 is arranged horizontally and symmetrically to drive the mounting plate 1 to move horizontally. The mounting surface of the booster cylinder 2 is fixed to the mounting plate 1, and the output end of the booster cylinder 2 is fixed to the equipment bracket, so that when the booster cylinder 2 drives the output end, it provides a reverse pushing force to the mounting plate 1 to make the mounting plate 1 move horizontally. A support cylinder 3 is fitted on the outside of the clamping shaft 4. The support cylinder 3 is slidably connected to the clamping shaft 4. The clamping shaft 4 can move horizontally in the support cylinder 3 and can also maintain a rotating state in the support cylinder 3. A power source 5 for driving the clamping shaft 4 to rotate is fixedly connected to the outside of the clamping shaft 4. The power source 5 can be a gear or other transmission components to drive the clamping shaft 4 to rotate, and drive the winding shaft to rotate through the clamping shaft 4.

[0029] like Figure 3 - Figure 5 As shown, the elastic component includes a fixed rod 17, which is fixedly connected to the slide groove 12. A spring 18 is fitted on the outside of the fixed rod 17. Slider blocks 20 that are slidably connected to the slide groove 12 are fixedly connected to both sides of the wedge block 19. A guide hole 21 that cooperates with the fixed rod 17 is opened on the top of the slider 20. The spring 18 is fixedly connected between the opposing surfaces of the slider 20 and the slide groove 12. A limiting rod 22 is fixedly connected to the outer wall of the wedge block 19. The spring 18 provides elastic force, so that the slider 20 can move elastically in the slide groove 12 and drive the wedge block 19 to move synchronously in the movable opening 11, so as to realize the elastic connection and reset function between the components and provide an elastic basis for subsequent limiting operations.

[0030] like Figure 3 - Figure 5 As shown, the outer wall of the connecting seat 7 is provided with a positioning port 10 for insertion into the positioning block 23. The positioning port 10 is provided with a connecting hole 13 that communicates with the movable port 11. The limiting rod 22 passes through the connecting hole 13 and is inserted into the limiting hole 24 opened on the top of the positioning block 23. The positioning port 10 and the positioning block 23 realize the positioning and installation of the bevel gear sleeve 6 on the top shaft 4. By inserting the limiting rod 22 into the limiting hole 24, the positioning block 23 is limited and fixed, and the connection and fixation of the bevel gear sleeve 6 are completed.

[0031] like Figure 3 - Figure 5 As shown, the limiting extrusion component includes a knob 14 and a conical ring 16. A groove 8 is provided on the side of the connecting seat 7 near the tightening shaft 4. A threaded column 9 is fixedly connected between the groove 8 and the opposite face of the tightening shaft 4. A screw hole 15 is provided on the side wall of the knob 14, and the screw hole 15 is threadedly connected to the threaded column 9. The conical ring 16 is fixedly connected on the side of the knob 14 near the connecting seat 7. The conical ring 16 is fitted on the outside of the threaded column 9. Rotating the knob 14 can move along the threaded column 9 through the screw hole 15, which drives the conical ring 16 to move. The conical surface of the conical ring 16 cooperates with other components to realize the extrusion limiting function.

[0032] like Figure 3 - Figure 5 As shown, the inclined surface of the wedge block 19 is an arc-shaped inclined surface that fits against the inclined conical surface of the conical ring 16. When the conical ring 16 moves, its inclined conical surface interacts with the arc-shaped inclined surface of the wedge block 19, causing the wedge block 19 to move, which in turn drives the limit rod 22 and other components to move, realizing functions such as limiting or unlocking, and converting rotational motion into linear motion.

[0033] The working principle of this simple clamping chuck assembly is as follows:

[0034] Before starting the equipment, first complete the assembly of the bevel sleeve 6. Align the positioning block 23 on one side of the bevel sleeve 6 with the positioning port 10 on the outer wall of the connecting seat 7 and insert it to achieve initial positioning of the bevel sleeve 6 and the connecting seat 7. Then, rotate the knob 14 on the outside of the threaded column 9. Since the knob 14 is threadedly connected to the threaded column 9 through the screw hole 15, the knob 14 will move along the threaded column 9 towards the connecting seat 7, causing the conical ring 16 fixed on one side of the knob 14 to move synchronously. The inclined conical surface of the conical ring 16 fits against the arc inclined surface of the wedge block 19 in the movable port 11. As the conical ring 16 moves, the conical ring 16 moves towards the connecting seat 7. As ring 16 continues to advance, it will generate a lateral thrust on wedge block 19, causing wedge block 19 to slide along movable opening 11. At the same time, sliders 20 on both sides of wedge block 19 slide along fixed rod 17 in sliding groove 12 and compress spring 18. During the sliding process of wedge block 19, limiting rod 22 on its outer wall will pass through the connecting hole 13 between movable opening 11 and positioning opening 10, and finally insert into limiting hole 24 at the top of positioning block 23. Conical ring 16 enters groove 8, completing the locking and fixing of conical sleeve 6, ensuring that conical sleeve 6 will not deviate during subsequent operation.

[0035] When the take-up shaft needs to be driven, the booster cylinders 2 above and below the mounting plate 1 are activated. After the booster cylinders 2 are fixed to the external frame, the output end extends in the opposite direction to push the mounting plate 1 to move horizontally. The clamping shaft 4 will move along the support cylinder 3 to guide the movement, so that the bevel sleeve 6 is precisely connected and clamped to the take-up shaft. At the same time, the power source 5 outside the clamping shaft 4 is activated, driving the clamping shaft 4 to rotate. The clamping shaft 4 transmits power to the take-up shaft through the connecting seat 7 and the bevel sleeve 6, driving the take-up shaft to rotate for the take-up operation.

[0036] If the bevel sleeve 6 needs to be replaced, turn the knob 14 in the opposite direction. The cone ring 16 moves backward along the threaded post 9 with the knob 14, and the thrust on the wedge block 19 disappears. The compressed spring 18 releases its elastic potential energy, pushes the slider 20 to drive the wedge block 19 to reset, and the limit rod 22 exits from the limit hole 24 of the positioning block 23. At this time, the positioning block 23 of the bevel sleeve 6 can be removed from the positioning port 10 of the connecting seat 7 to complete the disassembly of the old bevel sleeve 6 so that a new bevel sleeve 6 can be replaced.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, various improvements can be made to it without departing from the scope of the present utility model, and components can be replaced with equivalents or some technical features can be replaced with equivalents. All such improvements within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A simple clamping chuck assembly, including a mounting plate (1), wherein a clamping shaft (4) is rotatably connected to one side of the mounting plate (1); characterized in that The top clamping shaft (4) is provided with a detachable bevel sleeve (6) at the end away from the mounting plate (1); A connecting seat (7) is provided between the clamping shaft (4) and the bevel sleeve (6). A threaded post (9) for fixing the clamping shaft (4) is provided on the side of the connecting seat (7) away from the bevel sleeve (6). The bevel sleeve (6) is positioned and inserted into the connecting seat (7) through a positioning block (23). The positioning block (23) is fixedly connected to the side of the bevel sleeve (6) near the connecting seat (7). A movable opening (11) is provided on one side of the connecting seat (7). A wedge block (19) is slidably connected in the movable opening (11). A limiting rod (22) for limiting the positioning block (23) is provided on one side of the wedge block (19). A sliding groove (12) is provided on both sides of the inner wall of the movable opening (11). An elastic element for controlling the reset of the wedge block (19) is provided in the sliding groove (12). The threaded column (9) is provided with a limiting extrusion member on its exterior for pushing the two positioning blocks (23) to move in opposite directions.

2. The simple top clamp collet assembly of claim 1, wherein: A booster cylinder (2) is installed on one side of the mounting plate (1). The booster cylinder (2) is arranged horizontally and symmetrically to drive the mounting plate (1) to move horizontally. A support cylinder (3) is fitted on the outside of the clamping shaft (4). The support cylinder (3) is slidably connected to the clamping shaft (4). A power source (5) for driving the clamping shaft (4) to rotate is fixedly connected to the outside of the clamping shaft (4).

3. The simple top clamp collet assembly of claim 1, wherein: The elastic element includes a fixed rod (17), which is fixedly connected in the slide groove (12). A spring (18) is fitted on the outside of the fixed rod (17). Slider blocks (20) that slide in the slide groove (12) are fixedly connected on both sides of the wedge block (19). A guide hole (21) is provided on the top of the slider (20) to guide and cooperate with the fixed rod (17). The spring (18) is fixedly connected between the opposite surfaces of the slider (20) and the slide groove (12). The limiting rod (22) is fixedly connected to the outer wall of the wedge block (19).

4. The simple top clamp collet assembly of claim 1, wherein: The outer wall of the connecting seat (7) is provided with a positioning port (10) for insertion into the positioning block (23). The positioning port (10) is provided with a connecting hole (13) that communicates with the movable port (11). The limiting rod (22) passes through the connecting hole (13) and is inserted into the limiting hole (24) opened on the top of the positioning block (23).

5. The simple collet chuck assembly of claim 1 wherein: The limiting and pressing component includes a knob (14) and a conical ring (16). The connecting seat (7) has a groove (8) on the side near the tightening shaft (4). The threaded column (9) is fixedly connected between the groove (8) and the opposite face of the tightening shaft (4). The knob (14) has a screw hole (15) on its side wall. The screw hole (15) is threadedly connected to the threaded column (9). The conical ring (16) is fixedly connected to the knob (14) on the side near the connecting seat (7). The conical ring (16) is fitted onto the outside of the threaded column (9).

6. The simple collet chuck assembly of claim 1 wherein: The inclined surface of the wedge block (19) is an arc-shaped inclined surface that fits into the inclined conical surface of the conical ring (16).