A spooling spindle mechanism

Abstract

The utility model belongs to the technical field of winding main shaft, especially a winding main shaft mechanism, including base, drive motor and main shaft box body device, base sets up in the frame of winding machine, and through fastener quick its installation on the frame, drive motor adjustable setting is in the base, main shaft box body device is located above the base, linear array is equipped with a plurality of rotating shafts on the main shaft box body device. This winding main shaft mechanism, this mechanism is with the core of accurate synchronous drive and convenient tensioning adjustment, realizes multidimensional performance improvement. On synchronous drive, adopts key strip spacing and inserts fixed driven synchronous pulley, and prevents transmission lost rotation, cooperates " inside + outside " double synchronous belt transmission, constructs " driving wheel - middle rotating shaft - both sides rotating shaft " multistage linkage structure, makes all rotating shafts of linear array rotational speed completely consistent, completely solves the synchronous lag, rotational speed deviation problem that easily appears in multi - shaft transmission, and winding coil number precision and wire arrangement flatness improve significantly.

Description

Technical Field

[0001] This utility model relates to the field of winding spindle technology, and in particular to a winding spindle mechanism. Background Technology

[0002] Existing winding spindle mechanisms suffer from several drawbacks: uneven force distribution due to single synchronous belt drive leads to lag in the rotational speed of adjacent shafts, especially at high speeds, where speed deviations directly cause winding coil count errors and wire routing malfunctions; traditional tensioning structures rely on bolted rigid fixation without precise adjustment mechanisms, resulting in the synchronous belt breaking if the tension is too high, or slipping if too low; replacing the synchronous belt requires disassembling the spindle housing, which is time-consuming and inefficient due to the rigid connection between the tensioning pulley and the housing. The heat generated by the high-speed operation of multiple shafts relies solely on natural heat dissipation from the housing, easily exceeding 80°C in the bearing area, leading to lubricant failure, accelerated component wear, shortened service life, rapid bearing wear, and softening of the wire insulation. Therefore, a new winding spindle mechanism is needed. Utility Model Content

[0003] Based on the existing technical problems, this utility model proposes a winding spindle mechanism.

[0004] This utility model proposes a winding spindle mechanism, including a base, a drive motor, and a spindle housing device. The base is set on the frame of the winding machine and can be quickly installed on the frame by fasteners. The drive motor is adjustablely set on the base. The spindle housing device is located above the base. Multiple rotating shafts are linearly arrayed on the spindle housing device. The drive motor drives the multiple rotating shafts to rotate synchronously at high speed. The spindle housing device also includes a spindle housing body and a spindle housing cover. The side of the spindle housing body is provided with a tension quick-change adjustment mechanism, which realizes the action of synchronous rotation and tension adjustment of multiple rotating shafts.

[0005] Preferably, a spindle heat sink is installed on the top of the spindle housing body and the top of the spindle housing cover. A cooling fan is also provided on the top of the multiple spindle heat sinks. The air outlet of the multiple cooling fans is correspondingly arranged on the top of the multiple spindle heat sinks, and the multiple cooling fans are all connected to the top of the spindle housing body and the top of the spindle housing cover by screw threads.

[0006] Preferably, the two arc surfaces at both ends of the rotating shaft are rotatably connected to the two side surfaces of the main spindle box body through bearings, and a wire clamping head is installed at one end of the rotating shaft. One end of the wire clamping head is engaged with the surface of the winding fixture, and the coil bobbin is clamped on the surface of the winding fixture.

[0007] Preferably, a driven synchronous pulley is fixedly installed at the other end of the rotating shaft. The surfaces of the two driven synchronous pulleys at one end of the rotating shaft are limited and inserted by key strips, and are in contact with each other. An inner driven synchronous belt is driven between the two driven synchronous pulleys on each pair of rotating shaft surfaces that are close to the main spindle box body, and an outer driven synchronous belt is driven between the two driven synchronous pulleys on each pair of rotating shaft surfaces that are far away from the main spindle box body.

[0008] Preferably, a support connecting plate is also installed on the middle side of the main spindle box body, and one end of each of the two rotating shafts in the middle is rotatably connected to the surface of the support connecting plate through bearings. An active synchronous pulley is installed at the output end of the drive motor, and the inner wall of the groove of the two active synchronous pulleys is respectively connected to the inner wall of the groove of the driven synchronous pulley at one end of the two rotating shafts in the middle by an active synchronous belt.

[0009] Preferably, the tension quick-change adjustment mechanism includes a slide groove on the side of the main spindle box body, a sliding block slidably inserted into the inner wall of the slide groove, a U-shaped adjustment groove on the surface of the sliding block, the inner wall of the U-shaped adjustment groove being movably sleeved with the surface of the locking screw, and the sliding block being limited and installed by the locking screw being threadedly locked to the inner side wall of the slide groove. A tensioning shaft is rotatably connected to one side surface of the sliding block through a bearing, and a tensioning wheel is installed at one end of the tensioning shaft. Multiple tensioning wheels are respectively squeezed and tensioned by multiple inner driven synchronous belts and multiple outer driven synchronous belts.

[0010] Preferably, a limit block is installed on the top sidewall of the slide by screws, an adjusting screw is threaded to the top of the limit block, an adapter is installed on the top of the slide block, and the bottom end of the adjusting screw is rotatably connected to the top of the adapter via a bearing.

[0011] The beneficial effects of this utility model are as follows: This mechanism focuses on precise synchronous drive and convenient tension adjustment to achieve multi-dimensional performance improvements. For synchronous drive, a keyed limiter is used to fix the driven synchronous belt pulley, eliminating transmission slippage. Combined with an "inner + outer" dual synchronous belt drive, a multi-stage linkage structure of "drive pulley - central shaft - two side shafts" is constructed, ensuring that all shafts in the linear array rotate at completely identical speeds. This completely solves the synchronization lag and speed deviation problems that easily occur in multi-axis drives, significantly improving the accuracy of winding coils and the flatness of the wire arrangement. By adjusting the screw to drive the sliding block and thus the tensioning pulley, precise stepless fine-tuning of the synchronous belt can be achieved, ensuring optimal tension and preventing slippage or overstretching. Replacing the synchronous belt only requires loosening the locking screws, without disassembling the spindle housing, greatly reducing maintenance workload. Simultaneously, the central support connecting plate and bearings form multi-point support, suppressing deflection deformation during high-speed shaft rotation. Combined with dual heat dissipation of "heat sink + fan," high-temperature wear is avoided, extending component lifespan. The base fastener installation enables quick replacement and repair of the mechanism, while the snap-fit ​​design between the wire clamp and the winding fixture accelerates coil bobbin replacement, broadening its applicability. The buffering and vibration-absorbing characteristics of the synchronous belt drive also reduce operating noise and improve the production environment. Overall, through the optimization of the synchronous drive and tensioning system, combined with various auxiliary structures, the mechanism perfectly adapts to the needs of large-scale, high-precision winding production, combining stability and economy. Attached Figure Description

[0012] Figure 1 A schematic diagram of a winding spindle mechanism; Figure 2 An exploded view of the spindle housing of a winding spindle mechanism; Figure 3 A three-dimensional view of the spindle box structure of a winding spindle mechanism; Figure 4 For a winding spindle mechanism Figure 3 Enlarged view of the structure at point A in the middle.

[0013] In the diagram: 1. Base; 2. Drive motor; 3. Spindle box assembly; 31. Rotating shaft; 32. Spindle box body; 33. Spindle box cover; 34. Wire clamp; 35. Driven synchronous belt pulley; 36. Inner driven synchronous belt; 37. Outer driven synchronous belt; 38. Support connecting plate; 39. Driven synchronous belt pulley; 310. Driven synchronous belt; 4. Tensioning quick-change adjustment mechanism; 41. Slide groove; 42. Sliding block; 43. U-shaped adjustment groove; 44. Tensioning shaft; 45. Tensioning wheel; 46. Limit block; 47. Adjusting screw; 48. Adapter seat; 5. Spindle heat sink; 6. Cooling fan. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Reference Figures 1-4 A winding spindle mechanism is disclosed for use on a winding machine. The winding machine has a frame and a loading / unloading device mounted on the frame. The specific winding machine is well-known to those skilled in the art and will not be described in detail here. The winding spindle mechanism includes a base 1, a drive motor 2, and a spindle housing 3. The base 1 is mounted on the frame of the winding machine and is quickly installed on the frame using fasteners. In case of malfunction, the entire winding spindle mechanism can be quickly replaced by loosening the fasteners without affecting normal production. The drive motor 2 is adjustablely mounted on the base 1 and provides rotational power for winding the wire frame. The spindle housing 3 is located above the base 1 and has multiple rotating shafts 31 arranged in a linear array on it. The drive motor 2 drives the multiple rotating shafts 31 to rotate synchronously at high speed. The base 1, drive motor 2, and spindle housing 3 will be described in detail below.

[0016] The spindle housing device 3 also includes a spindle housing body 32 and a spindle housing cover 33; spindle heat sinks 5 are installed on the top of the spindle housing body 32 and the top of the spindle housing cover 33, and cooling fans 6 are also provided on the top of the multiple spindle heat sinks 5. The air outlets of the multiple cooling fans 6 are correspondingly arranged on the top of the multiple spindle heat sinks 5, and the multiple cooling fans 6 are all connected to the top of the spindle housing body 32 and the top of the spindle housing cover 33 by screw threads; the arc surfaces at both ends of the multiple rotating shafts 31 are rotatably connected to the two side surfaces of the spindle housing body 32 by bearings, and a wire clamping head 34 is installed on one end of the rotating shaft 31. One end of the wire clamping head 34 is engaged with the surface of the winding fixture, and the coil bobbin is clamped on the surface of the winding fixture.

[0017] Specifically, the spindle housing body 32 and the top of the protective cover are both equipped with spindle heat sinks 5, which, together with the correspondingly arranged cooling fans 6, form a dual heat dissipation structure of "heat conduction by heat sinks + forced air exhaust by fans". This can quickly dissipate the heat generated by the synchronous high-speed rotation of multiple shafts 31, and prevent the temperature from accumulating inside the housing. The wire clamp 34 at one end of the shaft 31 is engaged with the winding fixture. The coil frame is clamped by the winding fixture. The clamping structure enables the quick assembly and disassembly of the winding fixture without the need for a complicated locking process, which shortens the replacement time of the coil frame and improves the changeover efficiency.

[0018] A driven synchronous pulley 35 is fixedly installed at the other end of the rotating shaft 31. The surfaces of the two driven synchronous pulleys 35 at one end of the rotating shaft 31 are connected by key strips and are in contact with each other. An inner driven synchronous belt 36 is driven between the two driven synchronous pulleys 35 on the surfaces of each two rotating shafts 31 that are close to the spindle box body 32, and an outer driven synchronous belt 37 is driven between the two driven synchronous pulleys 35 on the surfaces of each two rotating shafts 31 that are away from the spindle box body 32. A support connecting plate 38 is also installed on the middle side of the spindle box body 32. One end of the two rotating shafts 31 in the middle is rotatably connected to the surface of the support connecting plate 38 through bearings. An active synchronous pulley 39 is installed at the output end of the drive motor 2. The inner wall of the groove of the two active synchronous pulleys 39 is driven by an active synchronous belt 310, which is driven by the inner wall of the groove of the driven synchronous pulley 35 at one end of the two rotating shafts 31 in the middle.

[0019] Specifically, the driven synchronous pulley 35 is fixed to the rotating shaft 31 by a keyed limiting connection, completely avoiding relative slippage between the pulley and the rotating shaft 31 during transmission, ensuring no loss of power transmission. At the same time, the standardized design of the keyed connection ensures the coaxiality accuracy of the pulley and the rotating shaft 31, laying the foundation for multi-axis synchronous transmission. The dual synchronous belt transmission design of "inner driven synchronous belt 36 + outer driven synchronous belt 37" is adopted. Every two adjacent rotating shafts 31 are driven by two sets of synchronous belts. With the power input method of the drive motor 2 driving the middle rotating shaft 31 through the active synchronous belt 310, a multi-stage synchronous transmission structure of "active-driven-linkage" is formed, ensuring that the rotation speed of all linear array rotating shafts 31 is completely consistent without speed difference. This solves the problems of synchronization lag and speed deviation that are prone to occur in multi-axis transmission, and greatly improves the accuracy of the number of turns of multi-station winding and the consistency of the wire spacing.

[0020] A tension quick-change adjustment mechanism 4 is provided on the side of the spindle box body 32. The tension quick-change adjustment mechanism 4 realizes the synchronous rotation and tension adjustment of multiple rotating shafts 31. The tension quick-change adjustment mechanism 4 includes a slide groove 41 opened on the side of the spindle box body 32. A sliding block 42 is slidably inserted into the inner wall of the slide groove 41. A U-shaped adjustment groove 43 is opened on the surface of the sliding block 42. The inner wall of the U-shaped adjustment groove 43 is movably sleeved with the surface of the locking screw. The sliding is realized by locking the locking screw with the inner wall of the slide groove 41 through the thread. The sliding block 42 is installed in a limiting position. A tensioning shaft 44 is rotatably connected to one side surface of the sliding block 42 via a bearing. A tensioning wheel 45 is installed at one end of the tensioning shaft 44. Multiple tensioning wheels 45 are respectively squeezed and tensioned by multiple inner driven synchronous belts 36 and multiple outer driven synchronous belts 37. A limiting block 46 is installed on the top side wall of the slide groove 41 via screws. An adjusting screw 47 is threadedly connected to the top of the limiting block 46. An adapter seat 48 is installed on the top of the sliding block 42. The bottom end of the adjusting screw 47 is rotatably connected to the top of the adapter seat 48 via a bearing.

[0021] Specifically, this is implemented using a linkage adjustment structure of "adjusting screw 47 + adapter 48 + sliding block 42". Rotating the adjusting screw 47 drives the sliding block 42 to slide up and down along the slide groove 41, thereby causing the tensioning wheel 45 to synchronously compress the inner and outer driven synchronous belts 37. This allows for precise fine-tuning of the tension without disassembling the transmission components, solving the problems of cumbersome synchronous belt tension adjustment and difficulty in controlling the tension in existing technologies. It ensures that the synchronous belt is always in the optimal tension state, avoiding slippage and tooth skipping during transmission, and guaranteeing the accuracy of multi-axis synchronous transmission. Multiple tensioning wheels 45 respectively compress and tighten the corresponding inner and outer driven synchronous belts 37, in conjunction with the adjusting screw 47. The unified drive of 7 enables synchronous tension adjustment of all synchronous belts, ensuring uniform tension of each synchronous belt and further enhancing the rotational speed consistency of the multi-shaft 31, providing double protection for winding accuracy. The sliding block 42 is fixed to the sliding groove 41 by "U-shaped adjustment groove 43 + locking screw". When replacing the synchronous belt, only the locking screw needs to be loosened to quickly move the sliding block 42 along the U-shaped adjustment groove 43, so that the tensioning wheel 45 is disengaged from the synchronous belt. There is no need to disassemble the main spindle housing or shaft 31, and the synchronous belt can be directly removed for replacement. Compared with the design of the prior art that requires the disassembly of multiple parts to replace the synchronous belt, the replacement time of the synchronous belt is greatly shortened and the equipment maintenance downtime cost is reduced.

[0022] This mechanism focuses on precise synchronous drive and convenient tension adjustment to achieve multi-dimensional performance improvements. For synchronous drive, a keyed limiter is used to fix the driven synchronous pulley 35, eliminating transmission slippage. Combined with an "inner + outer" dual synchronous belt drive, a multi-stage linkage structure of "drive pulley - central shaft 31 - two side shafts 31" is constructed, ensuring that all shafts 31 of the linear array rotate at the same speed. This completely solves the problems of synchronization lag and speed deviation that easily occur in multi-axis drives, significantly improving the accuracy of winding coils and the flatness of the wire arrangement. By adjusting the screw 47 to drive the sliding block 42, which in turn drives the tensioning pulley 45, precise stepless fine-tuning of the synchronous belt can be achieved, ensuring optimal tension and preventing slippage or overstretching. Replacing the synchronous belt only requires loosening the locking screws, without disassembling the spindle housing, greatly reducing maintenance workload. Simultaneously, the central support connecting plate 38, in conjunction with the bearing, forms multi-point support, suppressing the deflection deformation of the shaft 31 during high-speed rotation. Combined with dual heat dissipation of "heat sink + fan," high-temperature wear is avoided, extending component lifespan. The fastener installation on base 1 enables quick replacement and repair of the mechanism, while the snap-fit ​​design between the wire clamp 34 and the winding fixture accelerates coil frame replacement and broadens its applicability. The buffering and vibration-absorbing characteristics of the synchronous belt drive also reduce operating noise and improve the production environment. Overall, through the optimization of the synchronous drive and tensioning system, combined with various auxiliary structures, the mechanism perfectly adapts to the needs of large-scale, high-precision winding production, combining stability and economy.

[0023] Working principle: The base 1 is fixed to the winding machine frame by fasteners to complete the overall installation of the mechanism; the adjusting screw 47 is rotated to make the tensioning wheel 45 fit precisely with the timing belt, and the locking screw is tightened to fix the sliding block 42 to ensure that the timing belt is in the optimal tension state; the coil frame is clamped to the winding fixture and fixed by the wire clamping head 34.

[0024] When the drive motor 2 is started, the active synchronous pulley 39 at its output end drives the driven synchronous pulley 35 of the central rotating shaft 31 to rotate through the active synchronous belt 310. The central rotating shaft 31 transmits power to the driven synchronous pulleys 35 of the two rotating shafts 31 through the "inner + outer" double driven synchronous belts. The key bar limit ensures that there is no relative slippage between the pulley and the rotating shaft 31, so as to realize the synchronous high-speed rotation of all rotating shafts 31.

[0025] During operation, the cooling fan 6 starts and works with the heat sink to quickly dissipate the heat generated by the rotating shaft 31 and bearings. If the timing belt becomes loose, loosen the locking screw, rotate the adjusting screw 47 to drive the sliding block 42 to move, and drive the tensioning wheel 45 to compress the timing belt to the appropriate tension before re-locking it.

[0026] When replacing the coil bobbin, simply remove the old winding fixture and snap it into the new fixture; when replacing the timing belt, loosen the locking screw, move the sliding block 42 to disengage the tension wheel 45, replace it, reset and lock it to complete the maintenance.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A winding spindle mechanism, comprising a base (1), a drive motor (2), and a spindle housing device (3), characterized in that: The base (1) is set on the frame of the winding machine and is quickly installed on the frame by fasteners. The drive motor (2) is adjustablely set on the base (1). The spindle housing device (3) is located above the base (1). Multiple rotating shafts (31) are arranged in a linear array on the spindle housing device (3). The drive motor (2) drives the multiple rotating shafts (31) to rotate at high speed synchronously. The spindle housing device (3) also includes a spindle housing body (32) and a spindle housing cover (33). The side of the spindle housing body (32) is provided with a tension quick change adjustment mechanism (4). The tension quick change adjustment mechanism (4) realizes the action of synchronous rotation and tension adjustment of multiple rotating shafts (31).

2. The winding spindle mechanism according to claim 1, characterized in that: Spindle heat sinks (5) are installed on the top of the spindle housing body (32) and the top of the spindle housing cover (33). A cooling fan (6) is also provided on the top of the multiple spindle heat sinks (5). The air outlet of the multiple cooling fans (6) is correspondingly arranged with the top of the multiple spindle heat sinks (5), and the multiple cooling fans (6) are all connected to the top of the spindle housing body (32) and the top of the spindle housing cover (33) by screw threads.

3. The winding spindle mechanism according to claim 1, characterized in that: The two ends of the multiple rotating shafts (31) are rotatably connected to the two sides of the main shaft body (32) through bearings. One end of the rotating shaft (31) is equipped with a wire clamp (34), and one end of the wire clamp (34) is engaged with the surface of the winding fixture. The coil bobbin is clamped on the surface of the winding fixture.

4. The winding spindle mechanism according to claim 1, characterized in that: The other end of the rotating shaft (31) is fixedly installed with a driven synchronous pulley (35). The surfaces of the two driven synchronous pulleys (35) at one end of the rotating shaft (31) are connected by key strips and are in contact with each other. An inner driven synchronous belt (36) is driven between the two driven synchronous pulleys (35) on the surfaces of each two rotating shafts (31) that are close to the spindle box body (32). An outer driven synchronous belt (37) is driven between the two driven synchronous pulleys (35) on the surfaces of each two rotating shafts (31) that are far away from the spindle box body (32).

5. A winding spindle mechanism according to claim 4, characterized in that: A support connecting plate (38) is also installed on the middle side of the main spindle box body (32). One end of each of the two rotating shafts (31) in the middle is rotatably connected to the surface of the support connecting plate (38) through bearings. An active synchronous pulley (39) is installed at the output end of the drive motor (2). The inner wall of the groove of the two active synchronous pulleys (39) is connected to the inner wall of the groove of the driven synchronous pulley (35) at one end of the two rotating shafts (31) in the middle by an active synchronous belt (310).

6. A winding spindle mechanism according to claim 4, characterized in that: The tensioning quick-change adjustment mechanism (4) includes a slide groove (41) on the side of the main spindle box body (32). A sliding block (42) is slidably inserted into the inner wall of the slide groove (41). A U-shaped adjustment groove (43) is provided on the surface of the sliding block (42). The inner wall of the U-shaped adjustment groove (43) is movably sleeved with the surface of the locking screw. The sliding block (42) is limited and installed by the locking screw threadedly locking the inner side wall of the slide groove (41). A tensioning shaft (44) is rotatably connected to one side surface of the sliding block (42) through a bearing. A tensioning wheel (45) is installed at one end of the tensioning shaft (44). Multiple tensioning wheels (45) are squeezed and tensioned by multiple inner driven synchronous belts (36) and multiple outer driven synchronous belts (37).

7. A winding spindle mechanism according to claim 6, characterized in that: The top sidewall of the slide (41) is fitted with a limit block (46) by screws. The top of the limit block (46) is threaded with an adjusting screw (47). The top of the sliding block (42) is fitted with an adapter (48). The bottom end of the adjusting screw (47) is rotatably connected to the top of the adapter (48) by a bearing.

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