Shaft pulling vehicle for reel feeding and discharging

Abstract

The utility model relates to the technical field of reel feeding and discharging, in particular to a reel pulling vehicle for reel feeding and discharging. The shaft pulling device comprises a shaft pulling frame and a shaft supporting frame which is driven by a lead screw sliding block mechanism and does lifting motion on the shaft pulling frame, the lead screw sliding block mechanism comprises a lifting sliding block fixed to the shaft supporting frame, and a braking part capable of being locked with the shaft pulling frame is arranged on the lifting sliding block. The lifting device can stably lock the shaft coil after lifting motion.

Description

Technical Field

[0001] This utility model relates to the field of roller loading and unloading technology, specifically a roller unloading machine for roller loading and unloading. Background Technology

[0002] A shaft-pulling machine is a device used to support both ends of a large reel and drive the entire reel to perform loading and unloading operations.

[0003] Most existing spindle lifting machines, such as the one described in Chinese Patent Publication No. CN209940030U entitled "An Automatic Spindle Support Device for a Multi-Axial Fiberglass Warp Knitting Machine," utilize a worm gear ball screw jack to raise and lower the spindle. Specifically, the spindle support worm gear ball screw jack drives the spindle support nut to move linearly up and down through the rotation of the spindle support ball screw. The spindle support nut is fixedly connected to the spindle support lifting guide, so the spindle support lifting guide also moves linearly up and down simultaneously with the linear up and down movement of the spindle support nut. However, in actual implementation, due to the high-friction transmission characteristics of the worm gear structure, the worm gear and worm wheel wear significantly during use. After prolonged use, unstable locking of the spindle height often occurs, thus requiring a solution. Utility Model Content

[0004] In order to avoid and overcome the technical problems existing in the prior art, this utility model provides a shaft pulling car for loading and unloading shafts, which can stably lock the shafts after lifting and lowering movements.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A reel unloading and loading machine includes a reel unloading frame and a reel support frame driven by a screw-slider mechanism and moving up and down on the reel unloading frame. The screw-slider mechanism includes a lifting slider fixed to the reel support frame, and the lifting slider is provided with a braking part that can lock with the reel unloading frame.

[0007] As a further embodiment of this utility model: the braking part includes a gear that rotates and engages with the lifting slider via a horizontal hinge seat, and a rack that meshes with the gear is fixed on the axle frame. The length direction of the rack is parallel to the sliding direction of the lifting slider. A second electromagnetic brake that can lock the gear is also installed on the lifting slider. The second electromagnetic brake is connected in series with the power source of the lead screw slider mechanism. When the circuit is de-energized or energized, the braking end of the second electromagnetic brake abuts against the gear to lock or disengages to unlock.

[0008] As a further embodiment of this utility model: the braking part includes a second electromagnetic brake installed on the lifting slider. A friction strip fixed to the axle frame is provided on the side of the second electromagnetic brake, and the length direction of the friction strip is parallel to the lifting trajectory of the second electromagnetic brake. The second electromagnetic brake is connected in series with the power source of the lead screw slider mechanism. When the circuit is de-energized or energized, the braking end of the second electromagnetic brake abuts against the friction strip to lock or separates from it to unlock.

[0009] As a further improvement of this utility model, the braking part is configured as two sets symmetrically distributed on both sides of the lifting slider.

[0010] As a further embodiment of this utility model: the top of the power screw constituting the lead screw and slider mechanism has an extension end protruding from the axle-pulling frame, and a first electromagnetic brake is provided on the axle-pulling frame. The first electromagnetic brake is connected in series with the power source of the lead screw and slider mechanism, and when the circuit is de-energized or energized, the braking end of the first electromagnetic brake abuts against the extension end to lock or separates from it to unlock.

[0011] As a further embodiment of this utility model: the axle pulling frame is a closed box structure with an internal hollow interior. The power screw and the lifting slider are both distributed in the inner cavity of the axle pulling frame, and the axle support frame is located outside the axle pulling frame. The lifting slider passes through the axle pulling frame and is fixed to the axle support frame. The axle pulling frame has an elongated hole for the lifting and sliding of the axle support frame, and a sealing component that forms a sliding seal with the elongated hole is fixed on the axle support frame.

[0012] As a further embodiment of this utility model: the sealing assembly includes two take-up rollers distributed at both ends of the elongated hole and two dustproof strips respectively wound on the two take-up rollers, and the free ends of the two dustproof strips are fixed to the support frame. The take-up rollers are driven by a power component and take up and unwind the two dustproof strips respectively when the support frame moves up and down, so that the dustproof strips and the elongated hole form the sliding sealing fit.

[0013] As a further improvement of this utility model, the power component is a torsion spring that drives the winding roller to generate a winding action.

[0014] As a further improvement of this utility model: the power source of the lead screw slider mechanism includes a motor and a gearbox connected to the output shaft of the motor, and the gearbox and the power lead screw form a power transmission.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The power screw forming the lead screw-slider mechanism has an extension end protruding from the top of the axle-pulling frame, and a first electromagnetic brake is installed on the axle-pulling frame to lock against the extension end. The bottom of the power screw is supported by the axle-pulling frame. By locking the top extension section through axial compression, radial deformation and axial sliding of the power screw are not caused, resulting in less additional load on the power screw and assisting in stable locking. In addition, the first electromagnetic brake is connected in series with the power source of the lead screw-slider mechanism. When the circuit is de-energized or energized, the braking end of the first electromagnetic brake locks against the extension end or unlocks by separating from it. This automatically realizes unlocking during the lifting and lowering process of the axle support frame and locking after lifting and lowering adjustment. In actual implementation, the power source does not need to use a worm gear mechanism, thus improving the service life of the power source.

[0017] 2. A second electromagnetic brake is installed on the axle support bracket. The second electromagnetic brake cooperates with the friction strip on the axle puller frame to assist in locking the axle support bracket after the axle support bracket is raised and lowered. This not only further ensures the stability of the locking after the axle support bracket is adjusted, but also reduces the axial squeezing force between the axle support bracket and the power screw after the axle support bracket is adjusted and positioned, thereby improving the service life of the threads between the power screw and the axle support bracket.

[0018] 3. The braking unit formed by the second electromagnetic brake and the friction bar is set as two sets symmetrically distributed on both sides of the bearing support, so that the force on both sides of the bearing support is balanced, reducing the radial force of the second electromagnetic brake on the power screw during the locking process, and effectively preventing radial deformation of the power screw.

[0019] 4. The axle pulling frame has an internally hollow closed box structure. The power screw and the lifting slider are both located in the inner cavity of the axle pulling frame. The long hole on the axle pulling frame used for the lifting and sliding of the axle support frame is sealed by a sealing component, which can reduce the interference of workshop dust on the screw and slider mechanism and improve the service life of the screw and slider mechanism. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the internal side view of the axle-removing frame in this utility model.

[0021] Figure 2 This is a schematic diagram of the main structure of this utility model.

[0022] Figure 3 This is a side view of Embodiment 1 of the braking part in this utility model.

[0023] Figure 4 This is a side view of Embodiment 2 of the braking part in this utility model.

[0024] In the diagram: 10, axle-pulling frame; 11, elongated hole; 20, power screw; 30, first electromagnetic brake; 40, power source; 50, dustproof belt; 51, take-up roller; 60, axle support frame; 61, lifting slider; 70, braking unit; 71, second electromagnetic brake; 72a1, rack; 72a2, gear; 72b, friction strip. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] For ease of understanding, the specific structure and working method of this utility model are further described below with reference to the accompanying drawings:

[0027] The specific structure of this utility model is as follows: Figure 1-4 As shown, its main structure includes a shaft-pulling carriage 10 and a shaft support frame 60 driven by a screw-slider mechanism and moving up and down on the shaft-pulling carriage 10. The screw-slider mechanism includes a lifting slider 61 fixed to the shaft support frame 60, and a braking part 70 that can lock with the shaft support frame 60. Unlike the traditional method of locking the power screw 20 in the screw-slider mechanism using a worm gear mechanism, this application uses a braking part 70 on the lifting slider 61 that locks with the shaft support frame 60. This not only achieves stable locking but also reduces the axial compressive force between the lifting slider 61 and the power screw 20 after the shaft support frame 60 is adjusted into position, thus improving the service life of the threads between the power screw 20 and the shaft support frame 60.

[0028] Embodiment 1 of the braking unit 70, specifically, as follows: Figure 1 and Figure 3As shown, the braking unit 70 includes a gear 72a2 rotatably engaged with the lifting slider 61 via a horizontal hinge seat. A rack 72a1 meshing with the gear 72a2 is fixed on the axle-pulling frame 10, with the length direction of the rack 72a1 parallel to the sliding direction of the lifting slider 61. A second electromagnetic brake 71 capable of locking the gear 72a2 is also installed on the lifting slider 61, and the second electromagnetic brake 71 is connected in series with the circuit of the power source 40 of the lead screw slider mechanism. When the circuit of the power source 40 of the lead screw slider mechanism is energized, the braking end of the second electromagnetic brake 71 is disengaged from the gear 72a2 and unlocked. At this time, the lead screw slider mechanism can perform lifting adjustment. After the axle support frame 60 is adjusted, the circuit of the power source 40 of the lead screw slider mechanism is de-energized, and the braking end of the second electromagnetic brake 71 abuts against the gear 72a2 and locks. This not only makes operation convenient but also enables quick connection between the adjustment state and the locking state. Furthermore, in this embodiment, the second electromagnetic brake 71 is used to lock the gear 72a2, so that the braking process will not cause the lifting slider 61 to exert a radial squeezing force on the power screw 20, which further improves the service life of the screw slider mechanism.

[0029] Embodiment 2 of the braking unit 70, such as Figure 4 As shown, the braking unit 70 includes a second electromagnetic brake 71 mounted on the lifting slider 61. A friction strip 72b, fixed to the axle-pulling frame 10, is disposed beside the second electromagnetic brake 71, and the length direction of the friction strip 72b is parallel to the lifting trajectory of the second electromagnetic brake 71. The second electromagnetic brake 71 is connected in series with the power source 40 of the lead screw and slider mechanism. When the circuit is de-energized or energized, the braking end of the second electromagnetic brake 71 abuts against the friction strip 72b to lock or disengage to unlock. Unlike embodiment 1 of the braking unit 70, this embodiment uses a second electromagnetic brake 71 mounted on the lifting slider 61 to directly lock with the friction strip 72b fixed to the axle-pulling frame 10. Although this locking braking process generates a radial force on the power lead screw 20, the structure is simpler and a stable locking effect can be achieved.

[0030] Based on the above, such as Figure 3 and Figure 4 As shown, in both Embodiment 1 and Embodiment 2, the braking units 70 are arranged in two sets symmetrically distributed on both sides of the lifting slider 61. This not only ensures the balance of braking force on both sides of the lifting slider 61, but also, especially in Embodiment 2, the symmetrical distribution can counteract the radial force exerted by the braking units 70 on the power screw 20 during the braking process.

[0031] Based on the above, such as Figure 1 and Figure 2As shown, the top of the power lead screw 20 constituting the lead screw-slider mechanism has an extension end protruding from the axle-pulling frame 10. A first electromagnetic brake 30 is installed on the axle-pulling frame 10, which locks the power lead screw 20. Combined with the use of the braking unit 70, this achieves dual locking of the power lead screw 20 and the lifting slider 61, further enhancing the locking effect of the lead screw-slider mechanism. Similarly to the second electromagnetic brake 71 of the braking unit 70, the first electromagnetic brake 30 is connected in series with the power source 40 of the lead screw-slider mechanism. When the circuit is de-energized or energized, the braking end of the first electromagnetic brake 30 abuts against the extension end to lock or disengage to unlock, making operation convenient and enabling rapid transitions between the adjustment and locking states.

[0032] Based on the above, such as Figure 1 and Figure 2 As shown, the axle-pulling frame 10 has an internally hollow, closed box structure. The power lead screw 20 and the lifting slider 61 are both distributed within the inner cavity of the axle-pulling frame 10, while the axle support frame 60 is located outside the axle-pulling frame 10. The lifting slider 61 passes through the axle-pulling frame 10 and is fixed to the axle support frame 60, thereby achieving a sealed configuration of the lead screw and slider mechanism and effectively reducing the frictional damage caused by dust to the lead screw and slider mechanism. In addition, to achieve stable operation of the lead screw and slider mechanism in a sealed state, the axle-pulling frame 10 has an elongated hole 11 for the lifting and sliding of the axle support frame 60, and a sealing component that forms a sliding seal with the elongated hole 11 is fixed on the axle support frame 60.

[0033] Specifically, such as Figure 1 and Figure 2 As shown, the sealing assembly includes two take-up rollers 51 distributed at both ends of the elongated hole 11 and two dustproof strips 50 respectively wound around the two take-up rollers 51, with the free ends of the two dustproof strips 50 fixed to the support frame 60. The take-up rollers 51 are driven by a power component and, when the support frame 60 moves up and down, respectively wind up and unwind the two dustproof strips 50, so that a sliding seal is formed between the dustproof strips 50 and the elongated hole 11. Using the retractable dustproof strips 50 as the main sealing structure of the sealing assembly not only provides a stable sealing effect but also has the advantage of occupying little space.

[0034] Furthermore, such as Figure 1 As shown, the power component is a torsion spring that drives the take-up roller 51 to generate the take-up action. There is no need to set up an additional electric drive mechanism to rotate the take-up roller 51, which effectively reduces the cost of the device.

[0035] Based on the above, such as Figure 1 As shown, the power source 40 of the lead screw and slider mechanism includes a motor and a gearbox connected to the output shaft of the motor. The gearbox forms a power transmission with the power lead screw 20 so as to arrange a first electromagnetic brake 30 at the end of the power lead screw 20.

[0036] Of course, those skilled in the art will recognize that this invention is not limited to the details of the exemplary embodiments described above, but also includes the same or similar structures that can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0038] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A reel unloading machine for reels, characterized in that, It includes a shaft-pulling frame (10) and a shaft support frame (60) driven by a screw-slider mechanism and moving up and down on the shaft-pulling frame (10). The screw-slider mechanism includes a lifting slider (61) fixed to the shaft support frame (60). The lifting slider (61) is provided with a brake part (70) that can lock with the shaft-pulling frame (10).

2. A reel unloading machine for reels according to claim 1, characterized in that, The braking unit (70) includes a gear (72a2) that rotates and engages with the lifting slider (61) via a horizontal hinge seat. A rack (72a1) that meshes with the gear (72a2) is fixed on the axle frame (10). The length direction of the rack (72a1) is parallel to the sliding direction of the lifting slider (61). A second electromagnetic brake (71) that can lock the gear (72a2) is also installed on the lifting slider (61). The second electromagnetic brake (71) is connected in series with the power source (40) of the lead screw slider mechanism. When the circuit is de-energized or energized, the braking end of the second electromagnetic brake (71) abuts against the gear (72a2) to lock or separates from it to unlock.

3. A reel unloading machine for reels according to claim 1, characterized in that, The braking unit (70) includes a second electromagnetic brake (71) mounted on the lifting slider (61). A friction strip (72b) fixed to the axle frame (10) is provided on the side of the second electromagnetic brake (71), and the length direction of the friction strip (72b) is parallel to the lifting trajectory of the second electromagnetic brake (71). The second electromagnetic brake (71) is connected in series with the power source (40) of the lead screw slider mechanism. When the circuit is de-energized or energized, the braking end of the second electromagnetic brake (71) is locked or unlocked by contacting the friction strip (72b).

4. A reel unloading machine for reels according to claim 1, 2, or 3, characterized in that, The braking unit (70) is configured as two sets symmetrically distributed on both sides of the lifting slider (61).

5. A reel unloading machine for reels according to claim 1, 2, or 3, characterized in that, The top of the power screw (20) constituting the screw-slider mechanism has an extension end protruding from the axle-pulling frame (10). The axle-pulling frame (10) is provided with a first electromagnetic brake (30). The first electromagnetic brake (30) is connected in series with the power source (40) of the screw-slider mechanism. When the circuit is de-energized or energized, the braking end of the first electromagnetic brake (30) abuts against the extension end to lock or separates from it to unlock.

6. A reel unloading machine for reels according to claim 1, 2, or 3, characterized in that, The axle-pulling frame (10) has a hollow, closed box structure. The power screw (20) and the lifting slider (61) are both distributed in the inner cavity of the axle-pulling frame (10). The axle support frame (60) is located outside the axle-pulling frame (10). The lifting slider (61) passes through the axle-pulling frame (10) and is fixed to the axle support frame (60). The axle-pulling frame (10) has an elongated hole (11) for the lifting and sliding of the axle support frame (60). A sealing component that forms a sliding seal with the elongated hole (11) is fixed on the axle support frame (60).

7. A reel unloading machine for reels according to claim 6, characterized in that, The sealing assembly includes two take-up rollers (51) distributed at both ends of the elongated hole (11) and two dustproof strips (50) respectively wound on the two take-up rollers (51). The free ends of the two dustproof strips (50) are fixed to the support frame (60). The take-up rollers (51) are driven by a power component and take up and unwind the two dustproof strips (50) respectively when the support frame (60) moves up and down, so that the dustproof strips (50) and the elongated hole (11) form the sliding sealing fit.

8. A reel unloading machine for reels according to claim 7, characterized in that, The power component is a torsion spring that drives the take-up roller (51) to generate a take-up action.

9. A reel unloading machine for reels according to claim 1, 2, or 3, characterized in that, The power source (40) of the lead screw and slider mechanism includes a motor and a gearbox connected to the output shaft of the motor, which forms a power transmission with the power lead screw (20).

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