Protective device for hub spinning machine

Abstract

The utility model relates to the technical field of hub spinning machines, and discloses a protective device for a hub spinning machine, which comprises a hub spinning machine shell, an upper chute fixed in the hub spinning machine shell and close to the top, and a lower chute fixed on the inner surface of the hub spinning machine shell and positioned on one side of the bottom of the upper chute, the rack, the first gear, the second gear and the second spring can drive the fixed rack to move when the protective door moves, so that the rack drives the first gear in meshed connection to rotate, the first gear rotates to drive the second gear in meshed connection to rotate, and the second gear rotates to drive the fixed second spring to rotate; when no external force interference exists, the second spring can release the stored elastic potential energy, the second gear is driven to rotate reversely, the protective door is driven to move in the opposite direction through the first gear and the rack, and therefore automatic closing of the protective door is achieved; and the problem that the protection door cannot play a protection role after the protection door is forgotten to be closed is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel hub spinning machines, in particular to a protective device for wheel hub spinning machines. Background Art

[0002] The spinning machine is a metal plastic forming machine with an AC servo system installed on its bed. The rotating wheel frame in the system is equipped with two mutually perpendicular slides, longitudinal and transverse. The transverse and longitudinal feeds adopt precision ball screw pairs, which are connected to the synchronous belt drive pair and the precision ball screw pair by the servo motor in turn; a precision ball linear guide is provided under the slide; and a "copying" mechanism for the core mold outline is provided on the transverse slide of the rotating wheel frame.

[0003] Some existing wheel hub spinning machines have a sliding door structure as a protective measure. When in use, closing the protective door can play a protective role. However, during long-term use, people may forget to close the protective door due to fatigue or distraction, resulting in the protective door failing to play a protective role, posing a threat to the personal safety of personnel. For this reason, we propose a protective device for wheel hub spinning machines to solve or improve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a protective device for a wheel hub spinning machine, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solutions: it includes a hub spinning machine shell, an upper slide groove fixed near the top of the hub spinning machine shell, a lower slide groove fixed on the inner surface of the hub spinning machine shell and located on one side of the bottom of the upper slide groove, a protective door arranged between the lower slide groove and the upper slide groove, a lower roller installed at the bottom of the protective door by rotating a shaft, an upper roller installed at the top of the protective door by rotating a shaft, a rack fixed to the surface of the protective door, a first gear installed on the surface of the lower slide groove by rotating a shaft, the first gear is meshed with the rack, the second gear is installed on the inner surface of the hub spinning machine shell by rotating a shaft, the second gear is meshed with the first gear, a second spring is fixed to the bottom of the second gear, a ratchet is fixed to the surface of the rotating shaft of the second gear, a plurality of ratchet are arranged on the surface of the rotating shaft of the second gear, a rotating disk is fixed to the top of the rotating shaft of the second gear, and an adjustment component A is arranged on the inner surface of the hub spinning machine shell.

[0006] Furthermore, the adjustment component A includes a fixed column fixed to the inner surface of the wheel hub spinning machine housing, a slider slidably installed on the surface of the fixed column, a positive and negative threaded rod inserted into the slider, passing through the slider and threadedly connected to the slider, a limiting column inserted into the slider, and a speed reducer fixed to the top of one end of the limiting column.

[0007] Furthermore, the adjustment component A also includes a first spring sleeved on the surface of the limit column, one end of the first spring contacts the surface of the speed reducer, and the other end contacts the surface of the slider, and several groups of limit columns and first springs are arranged between a group of sliders and the speed reducer, and two groups of speed reducers and sliders are symmetrically arranged on both sides of the rotating disk, and several groups of limit columns and first springs are arranged between the two groups of speed reducers and sliders.

[0008] Furthermore, one end of the positive and negative threaded rod passes through the interior of the hub spinning machine shell and is rotatably connected to the hub spinning machine shell through a bearing, and a crank is fixed to the top of one end of the positive and negative threaded rod located outside the hub spinning machine shell.

[0009] Furthermore, a ratchet is arranged inside the second gear and the second gear is rotationally connected to the rotating shaft via a bearing. The ratchet is located inside the second gear and meshes with the ratchet inside the second gear.

[0010] Furthermore, the protective door is slidably installed between the upper slide groove and the lower slide groove through an upper roller rotatably installed at the top and a lower roller rotatably installed at the bottom. One end of the second spring is fixed to the bottom of the second gear, and the other end is fixed to the inner surface of the hub spinning machine casing.

[0011] Compared with the prior art, the utility model has the following beneficial effects: by arranging a rack, a first gear, a second gear and a second spring, the fixed rack can be driven to move when the protective door moves, so that the rack drives the meshing first gear to rotate, and when the first gear rotates, it will drive the meshing second gear to rotate, and when the second gear rotates, it will drive the fixed second spring to rotate, so that the second spring will deform and generate elastic potential energy. When there is no external force interference, the second spring will release the stored elastic potential energy, drive the second gear to reverse and drive the protective door to move in the opposite direction through the first gear and the rack, thereby realizing automatic closing of the protective door, avoiding the problem of the protective door failing to play a protective role after forgetting to close the protective door.

[0012] Compared with the prior art, the utility model also has the following beneficial effects: by setting the adjustment component A and the rotating disk, the moving speed of the protective door when closing can be adjusted. When the crank is turned, the crank will drive the fixed positive and negative threaded rod to rotate. When the positive and negative threaded rod rotates, it will drive the two groups of sliders connected by thread to move in a relatively close direction, so that the slider drives the internally inserted limit column, the first spring sleeved on the surface of the limit column and the deceleration plate fixed on the top of the limit column to move, so that the surfaces of the two groups of deceleration plates are in contact with the surface of the rotating disk, thereby increasing the resistance when the rotating disk rotates, reducing the rotation speed of the rotating disk, thereby reducing the rotation speed of the second gear fixed to the second gear rotating shaft, and continuing to turn the crank can make the two groups of sliders continue to approach, and the deceleration plate drives the fixed limit column to move, and at the same time squeezes the first spring sleeved on the surface of the limit column, so that the first spring is deformed and generates elastic potential energy, so that the pressure applied by the deceleration plate on the surface of the rotating disk is increased, and then the friction between the deceleration plate and the rotating disk continues to increase, thereby realizing the adjustment of the moving speed of the protective door, avoiding the injury to the limbs of the personnel due to the excessively fast moving speed of the protective door and the personnel not having time to dodge. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the hub spinning machine housing of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the protective door of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the rotating disk of the utility model;

[0017] Figure 5 This is a schematic diagram of the internal structure of the second gear of the utility model;

[0018] Figure 6 This is a schematic diagram of the second spring structure of the utility model;

[0019] Figure 7 This is a schematic diagram of the structure of the adjustment component A of the utility model.

[0020] In the figure: 1. hub spinning machine housing; 2. protective door; 3. crank; 4. upper slide groove; 5. lower slide groove; 6. lower roller; 7. rotating plate; 8. rack; 9. upper roller; 10. first gear; 11. second gear; 12. slider; 13. forward and reverse threaded rod; 14. first spring; 15. deceleration plate; 16. limit column; 17. second spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-7, including a hub spinning machine housing 1, an upper slide groove 4 fixed to the hub spinning machine housing 1 near the top, a lower slide groove 5 fixed to the inner surface of the hub spinning machine housing 1 at one side of the bottom of the upper slide groove 4, a protective door 2 arranged between the lower slide groove 5 and the upper slide groove 4, a lower roller 6 rotatably installed at the bottom of the protective door 2 through a rotating shaft, the lower roller 6 is rotatably installed with several groups at the bottom of the protective door 2, an upper roller 9 rotatably installed at the top of the protective door 2 through a rotating shaft, the upper roller 9 is rotatably installed with several groups at the top of the protective door 2, the protective door 2 is slidably installed between the upper slide groove 4 and the lower slide groove 5 through the upper roller 9 rotatably installed at the top and the lower roller 6 rotatably installed at the bottom, The protective door 2 can slide between the lower slide groove 5 and the upper slide groove 4 through the upper roller 9 and the lower roller 6. The rack 8 is fixed to the surface of the protective door 2. The first gear 10 is rotatably installed on the surface of the lower slide groove 5 through the rotating shaft. The first gear 10 is meshed with the rack 8. When the protective door 2 moves, the fixed rack 8 will be driven to move. When the rack 8 moves, the meshed first gear 10 will be driven to rotate. The second gear 11 is rotatably installed on the inner surface of the hub spinning machine housing 1 through the rotating shaft. The second gear 11 is meshed with the first gear 10. When the first gear 10 rotates, the meshed second gear 11 will be driven to rotate. The second spring 17 is fixed to the second gear 1 1, one end of the second spring 17 is fixed to the bottom of the second spring 17, and the other end is fixed to the inner surface of the hub spinning machine housing 1. When the second gear 11 rotates, it will drive the fixed second spring 17 to rotate, so that it will deform and store the rotation force. The pawl 18 is fixed to the surface of the rotating shaft of the second gear 11. The pawl 18 is arranged in a plurality of groups on the surface of the rotating shaft of the second gear 11. The second gear 11 is provided with ratchet teeth inside and the second gear 11 is rotatably connected with the rotating shaft through a bearing. The pawl 18 is located inside the second gear 11 and is meshed with the ratchet teeth inside the second gear 11. When the second gear 11 rotates to one side, the second gear 11 rotates to the side of the second gear 11. The rotation direction is the same as the bending direction of the pawl 18. At this time, the second gear 11 cannot drive or it is difficult to drive the pawl 18 to rotate. When the second gear 11 rotates to the other side, the rotation direction of the second gear 11 is opposite to the bending direction of the pawl 18. At this time, the pawl 18 is tightly meshed with the ratchet teeth inside the second gear 11. The second gear 11 will drive the meshing pawl 18 to rotate and make the pawl 18 drive the fixed rotating shaft to rotate. The rotating disk 7 is fixed to the top of the rotating shaft of the second gear 11. When the pawl 18 drives the rotating shaft of the second gear 11 to rotate, it will drive the rotating disk 7 fixed on the top to rotate. The adjusting component A is arranged on the inner surface of the hub spinning machine housing 1.

[0023] The adjusting component A includes a fixed column fixed to the inner surface of the wheel hub spinning machine housing 1, a slider 12 slidably installed on the surface of the fixed column, a positive and negative threaded rod 13 inserted in the slider 12, passing through the slider 12 and threadedly connected to the slider 12, one end of the positive and negative threaded rod 13 passes through the interior of the wheel hub spinning machine housing 1 and is rotatably connected to the wheel hub spinning machine housing 1 through a bearing. When the positive and negative threaded rod 13 rotates, it will drive the threaded slider 12 to move along the surface of the fixed column. A crank 3 is fixed to the top of one end of the positive and negative threaded rod 13 located on the outside of the wheel hub spinning machine housing 1. When the crank 3 rotates, it will drive the fixed positive and negative threaded rod 13 to rotate, a limiting column 16 inserted in the slider 12, and a deceleration plate 15 fixed to the top of one end of the limiting column 16. The adjusting component A also includes a sleeve on the limiting column 16. The first spring 14 on the surface of the column 16, one end of the first spring 14 contacts the surface of the deceleration plate 15, and the other end contacts the surface of the slider 12. When the deceleration plate 15 moves, it will drive the fixed limiting column 16 to move, and at the same time, it will squeeze the first spring 14 sleeved on the surface of the limiting column 16, so that the first spring 14 is deformed and generates elastic potential energy. Several groups of limiting columns 16 and first springs 14 are arranged between a group of sliders 12 and the deceleration plate 15. Two groups of the deceleration plate 15 and the slider 12 are symmetrically arranged on both sides of the rotating disk 7. Several groups of limiting columns 16 and first springs 14 are arranged between the two groups of deceleration plates 15 and the sliders 12. Several groups of limiting columns 16 can enhance the stability of the deceleration plate 15 when it moves, and several groups of first springs 14 can increase the elastic potential energy generated when the deceleration plate 15 moves.

[0024] Working principle: when the protective door 2 is moved and opened, it will drive the fixed rack 8 to move, so that the rack 8 drives the meshing first gear 10 to rotate. When the first gear 10 rotates, it will drive the meshing second gear 11 to rotate. When the second gear 11 rotates, it will drive the fixed second spring 17 to rotate, so that the second spring 17 will deform and generate elastic potential energy. When there is no external interference, the second spring 17 will release the stored elastic potential energy, drive the second gear 11 to reverse and drive the protective door 2 to move in the opposite direction through the first gear 10 and the rack 8, thereby realizing the automatic closing of the protective door 2, avoiding the problem that the protective door 2 cannot play a protective role after forgetting to close the protective door 2. At the same time, by turning the crank 3, the crank 3 drives the fixed positive and negative threaded rod 13 to rotate. When the positive and negative threaded rod 13 rotates, it will drive the two sets of threaded sliders 12 to move in a relatively close direction, so that the slider 12 drives the internal plug-in The limiting column 16, the first spring 14 sleeved on the surface of the limiting column 16 and the speed reducer 15 fixed on the top of the limiting column 16 move, so that the surfaces of the two groups of speed reducers 15 contact the surface of the rotating disk 7, thereby increasing the resistance when the rotating disk 7 rotates, reducing the rotation speed of the rotating disk 7, thereby reducing the rotation speed of the second gear 11 fixed to the rotating shaft of the second gear 11. Continuing to rotate the crank 3 can make the two groups of sliders 12 continue to approach each other, and the speed reducer 15 drives the fixed limiting column 16 to move, while squeezing the first spring 14 sleeved on the surface of the limiting column 16, so that the first spring 14 is deformed and generates elastic potential energy, so that the pressure applied by the speed reducer 15 on the surface of the rotating disk 7 increases, and then the friction between the speed reducer 15 and the rotating disk 7 continues to increase, thereby realizing the adjustment of the moving speed of the protective door 2, avoiding the limbs of the personnel being injured due to the excessively fast moving speed of the protective door 2 and the personnel not having time to dodge.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective device for a wheel hub spinning machine, characterized in that: The invention comprises a wheel hub spinning machine housing (1): an upper slide groove (4) fixed near the top of the wheel hub spinning machine housing (1), a lower slide groove (5) fixed on the inner surface of the wheel hub spinning machine housing (1) and located on one side of the bottom of the upper slide groove (4), a protective door (2) arranged between the lower slide groove (5) and the upper slide groove (4), a lower roller (6) rotatably mounted on the bottom of the protective door (2) via a rotating shaft, and an upper roller (9) rotatably mounted on the top of the protective door (2) via a rotating shaft; A rack (8), the rack (8) being fixed to the surface of the protective door (2); A first gear (10), the first gear (10) is rotatably mounted on the surface of the lower slide groove (5) via a rotating shaft, and the first gear (10) is meshingly connected with the rack (8); A second gear (11), the second gear (11) is rotatably mounted on the inner surface of the hub spinning machine housing (1) via a rotating shaft, and the second gear (11) is meshingly connected with the first gear (10); A second spring (17), the second spring (17) is fixed to the bottom of the second gear (11); A ratchet (18), the ratchet (18) being fixed to the surface of the rotating shaft of the second gear (11), and the ratchet (18) being arranged in a plurality of groups on the surface of the rotating shaft of the second gear (11); A rotating disk (7), the rotating disk (7) being fixed to the top of the rotating shaft of the second gear (11); An adjustment component A is arranged on the inner surface of the wheel hub spinning machine housing (1).

2. A protective device for a hub spinning machine according to claim 1, characterized in that: The adjustment component A includes a fixed column fixed to the inner surface of the hub spinning machine housing (1), a slider (12) slidably mounted on the surface of the fixed column, a positive and negative threaded rod (13) inserted into the slider (12), passing through the slider (12) and threadedly connected to the slider (12), a limiting column (16) inserted into the slider (12), and a speed reducer (15) fixed to the top of one end of the limiting column (16).

3. A protective device for a wheel hub spinning machine according to claim 2, characterized in that: The adjustment component A further comprises a first spring (14) sleeved on the surface of the limiting column (16), one end of the first spring (14) contacts the surface of the deceleration plate (15), and the other end contacts the surface of the slider (12), a plurality of groups of limiting columns (16) and the first spring (14) are arranged between a group of the slider (12) and the deceleration plate (15), two groups of the deceleration plate (15) and the slider (12) are symmetrically arranged on both sides of the rotating disk (7), and a plurality of groups of limiting columns (16) and the first spring (14) are arranged between the two groups of the deceleration plate (15) and the slider (12).

4. The protective device for a hub spinning machine according to claim 2, characterized in that: One end of the forward and reverse threaded rod (13) passes through the interior of the wheel hub spinning machine housing (1) and is rotatably connected to the wheel hub spinning machine housing (1) through a bearing, and a crank (3) is fixed to the top of one end of the forward and reverse threaded rod (13) located outside the wheel hub spinning machine housing (1).

5. The protective device for a hub spinning machine according to claim 1, characterized in that: A ratchet is arranged inside the second gear (11) and the second gear (11) is rotatably connected to the rotating shaft via a bearing. The ratchet pawl (18) is located inside the second gear (11) and meshes with the ratchet inside the second gear (11).

6. The protective device for a hub spinning machine according to claim 1, characterized in that: The protective door (2) is slidably installed between the upper slide groove (4) and the lower slide groove (5) through an upper roller (9) rotatably installed at the top and a lower roller (6) rotatably installed at the bottom. One end of the second spring (17) is fixed to the bottom of the second gear (11), and the other end is fixed to the inner surface of the hub spinning machine housing (1).

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