Blanking device for screw production

Abstract

The utility model relates to the technical field of screw production, in particular to a blanking device for screw production, which comprises a bottom plate, a support is fixedly connected to the upper end of the bottom plate, a discharging frame is arranged in the support, two connecting plates which are distributed front and back are fixedly connected in the support, and connecting shafts are rotatably connected to the opposite sides of the two connecting plates. A bearing frame which is obliquely arranged and of which the left side is of an opening structure is fixedly connected between the two connecting shafts; the inclined angle of the receiving frame is changed through continuous clockwise rotation, the sliding path of the screw to the receiving frame is blocked, automatic discharging stopping is achieved, workers are prompted to replace a container, the production metering precision and the processing timeliness are ensured, and after a new receiving frame is in place, the receiving frame is reset to the initial inclined state anticlockwise, and the receiving frame is prevented from falling off. The temporary storage screw slides into the new container along the inclined surface; according to the design, the space posture of the bearing frame is dynamically adjusted, material temporary storage and process seamless connection are achieved, and the problems of production line interruption and material spilling and leakage caused by traditional shutdown material replacement are solved.

Description

Technical Field

[0001] This utility model relates to the field of screw manufacturing technology, and specifically discloses a feeding device for screw manufacturing. Background Technology

[0002] Press-fit screws, also known as press-fit bolts or press-fit screws, are fasteners used for press-fitting. They are generally suitable for electronic and mechanical equipment, sheet metal products, and stamped hardware parts or materials such as copper, aluminum, and plastics. During installation, the threaded end of the press-fit screw must be embedded into the material matrix of the product through stamping or other extrusion methods.

[0003] Chinese Patent Publication No. CN219906161U discloses a feeding device for screw production. During feeding, the screws can fall into the unloading box. The buffer plate, in cooperation with the support rod, drives the moving block to squeeze the shock absorber to buffer the screws and make them fall into the receiving drawer through the buffer plate. This reduces the occurrence of large collisions and impacts between screws or between screws and the receiving drawer due to excessive gravitational potential energy during feeding, which may cause scratches on the screw surface. At the same time, it realizes continuous feeding of screws.

[0004] The shortcomings of the aforementioned patent are as follows: Firstly, since a receiving drawer is used for receiving screws, when the receiving drawer is full, it needs to be removed and the internal screws emptied. During the short period of time that the receiving drawer is removed, the upstream production equipment continues to discharge materials. The screws in the unloading box lose their bearing carrier and fall directly into the base, causing the screws to scatter and even requiring a shutdown for cleaning, which seriously affects the continuity of the production line. Secondly, the device lacks a full material warning mechanism. When the number of screws in the receiving drawer reaches a certain level, the screws will continue to fall into the receiving drawer without reminding the staff to deal with it in time, which poses an overload risk.

[0005] Therefore, a feeding device for screw production is needed to solve the above problems. Utility Model Content

[0006] This utility model provides a feeding device for screw production. When it is necessary to remove the receiving frame and pour out the internal screws, the receiving frame is used to temporarily store the screws to prevent them from scattering. There is no need to stop the machine for cleaning, thus avoiding affecting the continuity of the production line. When the number of screws in the receiving frame reaches a certain amount, it can remind the staff to handle it in time and automatically stop feeding more screws into the receiving frame.

[0007] This utility model is implemented as follows: a feeding device for screw production includes a base plate, a bracket fixedly connected to the upper end of the base plate, a feeding frame disposed inside the bracket, two connecting plates distributed front and rear fixedly connected inside the bracket, a connecting shaft rotatably connected to one side of each of the two connecting plates, a receiving frame with an inclined arrangement and an open structure on the left side fixedly connected between the two connecting shafts, the lower end of the feeding frame extending into the interior of the receiving frame, a buffer pad installed at the bottom end of the inner wall of the receiving frame, and a driving mechanism disposed in front of the receiving frame;

[0008] A rectangular slot is provided through the left end of the bracket. A weighing sensor is installed on the upper end of the base plate. A pressure plate is provided above the base plate, which abuts against the upper end of the weighing sensor and passes through the rectangular slot. A receiving frame passing through the rectangular slot is placed on the upper end of the pressure plate. A controller is installed on the upper end of the base plate. A buzzer is installed on the right end of the bracket. A stabilizing mechanism is provided on the lower side of the pressure plate.

[0009] The unloading frame is equipped with a buffer component inside.

[0010] As a preferred embodiment of the screw production unloading device of this utility model, the driving mechanism includes a driving frame fixedly connected to the front end of the front connecting plate, a worm gear rotatably connected inside the driving frame, a worm wheel meshing with the outer wall of the worm gear, a transmission shaft fixedly connected between the worm wheel and the connecting shaft located on the front side, and a servo motor with its output end fixedly connected to the worm gear mounted on the outer wall of the driving frame.

[0011] As a preferred embodiment of the screw production feeding device of this utility model, the stabilizing mechanism includes two left-right distributed mounting slots opened on the upper part of the base plate. Guide plates are fixedly connected inside the two mounting slots. Multiple sliding rods distributed front-back are slidably connected through the outer walls of the two guide plates. The multiple sliding rods are fixedly connected to the lower end of the pressure plate. Baffles are fixedly connected to the lower end of the multiple sliding rods.

[0012] As a preferred embodiment of the screw production unloading device of this utility model, the buffer assembly includes a buffer plate movably connected to the right end of the inner wall of the unloading frame via a hinge. The buffer plate is inclined, and a shock absorber is movably connected between the lower end of the buffer plate and the right end of the inner wall of the unloading frame via two hinges.

[0013] As a preferred embodiment of the screw production feeding device of this utility model, an L-shaped positioning plate is fixedly connected to the upper end of the pressure plate, and the L-shaped positioning plate is in contact with the right end and rear end of the receiving frame.

[0014] As a preferred embodiment of the screw production feeding device of this utility model, the distance between the front and rear sides of the inner wall of the receiving frame is greater than the distance between the front and rear sides of the receiving frame.

[0015] As a preferred embodiment of the screw production unloading device of this utility model, two left-right distributed connecting frames are fixedly connected between the top of the outer wall of the unloading frame and the top of the inner wall of the support.

[0016] The beneficial effects of this utility model are:

[0017] 1. When the weight of the screws in the receiving frame reaches the preset value, the weighing sensor transmits the signal to the controller, triggering the buzzer to sound an alarm and linking the drive mechanism to make the receiving frame change its tilt angle by rotating clockwise continuously, blocking the screws from sliding down the receiving frame, thus automatically stopping the feeding and prompting the staff to change the container, ensuring the accuracy of production measurement and the timeliness of processing.

[0018] 2. During the replacement of the receiving frame, the receiving frame maintains a specific tilt angle to form a temporary storage space, fully receiving the screws continuously fed from upstream; after the new receiving frame is in place, the receiving frame is reset counterclockwise to the initial tilt state, and the temporarily stored screws slide into the new container along the slope; this design achieves seamless connection between material storage and process by dynamically adjusting the spatial posture of the receiving frame, avoiding production line interruptions and material spillage problems caused by traditional shutdown for material replacement. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 This is a front sectional view of the screw feeding device of the present invention.

[0021] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 This is a partial left-side cross-sectional view of the present invention;

[0023] Figure 4 This is a partial structural diagram of the present invention;

[0024] Figure 5 This is a partial structural diagram of the present invention.

[0025] The markings in the diagram are: 1. Bracket; 2. Unloading frame; 3. Connecting plate; 4. Connecting shaft; 5. Receiving frame; 6. Buffer pad; 7. Drive frame; 8. Worm gear; 9. Worm wheel; 10. Servo motor; 11. Base plate; 12. Weighing sensor; 13. Rectangular groove; 14. Pressure plate; 15. Receiving frame; 16. L-shaped positioning plate; 17. Controller; 18. Buzzer; 19. Mounting groove; 20. Guide plate; 21. Slide rod; 22. Baffle; 23. Buffer plate; 24. Shock absorber. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0027] Please see Figure 1-5 A feeding device for screw production includes a base plate 11, a bracket 1 fixedly connected to the upper end of the base plate 11, a feeding frame 2 provided inside the bracket 1, two connecting plates 3 distributed front and rear fixedly connected inside the bracket 1, a connecting shaft 4 rotatably connected to the opposite side of the two connecting plates 3, a receiving frame 5 with an inclined arrangement and an open structure on the left side fixedly connected between the two connecting shafts 4, the lower end of the feeding frame 2 extending into the interior of the receiving frame 5, a buffer pad 6 installed at the bottom end of the inner wall of the receiving frame 5, and a driving mechanism provided in front of the receiving frame 5.

[0028] A rectangular slot 13 is provided through the left end of the bracket 1. A weighing sensor 12 is installed on the upper end of the base plate 11. A pressure plate 14 is provided above the base plate 11, which abuts against the upper end of the weighing sensor 12 and passes through the rectangular slot 13. A receiving frame 15 passing through the rectangular slot 13 is placed on the upper end of the pressure plate 14. A controller 17 is installed on the upper end of the base plate 11. A buzzer 18 is installed on the right end of the bracket 1. A stabilizing mechanism is provided on the lower side of the pressure plate 14.

[0029] The unloading frame 2 is equipped with a buffer component inside.

[0030] In this embodiment: the screws processed by the upstream production equipment enter the interior of the unloading frame 2 through the top opening. The impact force is absorbed by the buffer component to prevent the screws from being scratched due to free fall impact, thereby achieving the buffering effect.

[0031] After being buffered, the screw falls into the receiving frame 5 through the lower opening of the unloading frame 2. The receiving frame 5 is tilted and has an opening on the left side. The buffer pad 6 at the bottom of the inner wall further reduces the impact of the screw. Then the screw slides to the left along the tilted surface of the receiving frame 5 and falls into the receiving frame 15 below through the opening on the left side.

[0032] The receiving frame 15 is placed on the upper end of the pressure plate 14. The pressure plate 14 applies downward positive pressure to the weighing sensor 12. The weight of the screws in the receiving frame 15 is transmitted to the weighing sensor 12 below through the pressure plate 14. The weighing sensor 12 transmits the real-time weight signal to the controller 17. When the weight of the screws in the receiving frame 15 reaches the preset threshold of the controller 17, the controller 17 triggers the buzzer 18 on the right end of the bracket 1 to sound an alarm, reminding the staff to prepare to replace the receiving frame 15. At the same time, it sends a command to the drive mechanism, which drives the two connecting shafts 4 to rotate synchronously, so that the receiving frame 5 rotates clockwise around the connecting shafts 4. The receiving frame 5 rotates clockwise from the initial tilted state to the horizontal position. Based on the horizontal position, the receiving frame 5 continues to rotate clockwise by ten degrees, forming a slight tilted state. The screws are then temporarily stored in the receiving frame 5. In this way, when the screws in the receiving frame 15 reach a certain amount, the staff can be reminded to deal with it in time, and the feeding of screws into the receiving frame 15 will stop automatically.

[0033] After hearing the alarm from buzzer 18, the staff can directly remove the full receiving frame 15 without stopping the machine and place the empty receiving frame 15 on the pressure plate 14. Since the receiving frame 5 has been adjusted to a temporary storage position, the screws continuously fed from upstream are temporarily stored in the receiving frame 5, and there will be no interruption due to the replacement of the receiving frame 15. After replacing the receiving frame 15, the drive mechanism drives the receiving frame 5 to reset counterclockwise to the initial tilted state. At this time, the left opening of the receiving frame 5 is re-aligned with the rectangular groove 13, and the screws temporarily stored in the receiving frame 5 slide into the new receiving frame 15 along the tilted surface, restoring the normal feeding process. In this way, when it is necessary to remove the receiving frame 15 and pour out the internal screws, the screws can be temporarily stored in the receiving frame 5 to prevent the screws from scattering, without stopping the machine for cleaning, thus avoiding affecting the continuity of the production line.

[0034] As a technical optimization of this utility model, the drive mechanism includes a drive frame 7 fixedly connected to the front end of the front connecting plate 3, a worm gear 8 rotatably connected inside the drive frame 7, a worm wheel 9 meshing with the outer wall of the worm gear 8, a transmission shaft fixedly connected between the worm wheel 9 and the connecting shaft 4 located on the front side, and a servo motor 10 with its output end fixedly connected to the worm gear 8 is installed on the outer wall of the drive frame 7.

[0035] In this embodiment: after the servo motor 10 is started, the output shaft drives the worm 8 to rotate, the worm 8 meshes with and drives the worm wheel 9 to rotate, and the worm wheel 9 drives the front connecting shaft 4 to rotate through the transmission shaft, thereby driving the receiving frame 5 to rotate clockwise or counterclockwise around the connecting shaft 4; and the worm 8 and worm wheel 9 transmission has a self-locking characteristic, which can accurately position the receiving frame 5 to a horizontal or inclined state.

[0036] As a technical optimization of this utility model, the stabilizing mechanism includes two left and right distributed mounting slots 19 opened on the upper end of the base plate 11. Guide plates 20 are fixedly connected inside the two mounting slots 19. Multiple sliding rods 21 distributed front and back are slidably connected through the outer walls of the two guide plates 20. Multiple sliding rods 21 are fixedly connected to the lower end of the pressure plate 14. Baffles 22 are fixedly connected to the lower end of the multiple sliding rods 21.

[0037] In this embodiment: the lower end of the pressure plate 14 is connected to a plurality of slide rods 21. The slide rods 21 pass through the guide plate 20 in the mounting groove 19 at the upper end of the base plate 11. The baffle 22 restricts the slide rods 21 from disengaging from the guide plate 20, prevents the pressure plate 14 from moving in the horizontal direction, and applies a downward positive pressure to the weight sensor 12 through the pressure plate 14.

[0038] As a technical optimization of this utility model, the buffer assembly includes a buffer plate 23 that is movably connected to the right end of the inner wall of the unloading frame 2 via a hinge. The buffer plate 23 is inclined, and a shock absorber 24 is movably connected between the lower end of the buffer plate 23 and the right end of the inner wall of the unloading frame 2 via two hinges.

[0039] In this embodiment: when the screw falls into the unloading frame 2, it impacts the inclined buffer plate 23. The buffer plate 23 is connected to the right end of the inner wall of the unloading frame 2 through a hinge, and the lower end is supported by the shock absorber 24. When the screw falls, it pushes the buffer plate 23 to swing slightly around the hinge point. The shock absorber 24 compresses and absorbs the impact force, preventing the screw from being scratched due to free fall impact, thereby achieving the buffering effect.

[0040] As a technical optimization of this utility model, an L-shaped positioning plate 16 is fixedly connected to the upper end of the pressure plate 14, and the L-shaped positioning plate 16 is in contact with the right end and rear end of the receiving frame 15.

[0041] In this embodiment: when the receiving frame 15 is placed on the pressure plate 14, its right end and rear end are in contact with the vertical surface of the L-shaped positioning plate 16, thereby positioning the receiving frame 15.

[0042] As a technical optimization of this utility model, the distance between the front and rear sides of the inner wall of the receiving frame 15 is greater than the distance between the front and rear sides of the receiving frame 5.

[0043] In this embodiment, the front and rear spacing of the receiving frame 5 is smaller than that of the receiving frame 15, thereby ensuring that when the receiving frame 5 is tilted to unload the material, all the screws fall into the interior of the receiving frame 15.

[0044] As a technical optimization of this utility model, two connecting frames distributed on the left and right are fixedly connected between the outer wall of the unloading frame 2 and the top of the inner wall of the support 1.

[0045] In this embodiment: the connecting frame fixes the top of the unloading frame 2 to the top of the inner wall of the bracket 1, forming a rigid support structure, thereby fixing the position of the unloading frame 2.

[0046] The working principle and usage process of this utility model: The screws processed by the upstream production equipment enter the interior of the unloading frame 2 through the top opening. They first impact the inclined buffer plate 23. The buffer plate 23 is connected to the right end of the inner wall of the unloading frame 2 through a hinge. The lower end is supported by the shock absorber 24. When the screw falls, it pushes the buffer plate 23 to swing slightly around the hinge point. The shock absorber 24 compresses and absorbs the impact force, preventing the screw from being scratched due to free fall impact, thereby achieving the buffering effect.

[0047] After being buffered, the screw slides down the inclined surface of the buffer plate 23 and falls into the receiving frame 5 through the lower opening of the unloading frame 2. The receiving frame 5 is in an inclined state and has an open structure on the left side. The buffer pad 6 at the bottom of the inner wall further reduces the impact of the screw. Then the screw slides to the left along the inclined surface of the receiving frame 5 and falls into the receiving frame 15 below through the left opening.

[0048] The receiving frame 15 is placed on top of the pressure plate 14, with its right and rear ends abutting against the L-shaped positioning plate 16 to position the receiving frame 15 and prevent misalignment that could cause screws to fall out. Multiple sliding rods 21 are connected to the lower end of the pressure plate 14. The sliding rods 21 pass through the guide plate 20 in the mounting groove 19 at the upper end of the base plate 11. A baffle 22 restricts the sliding rods 21 from detaching from the guide plate 20, preventing the pressure plate 14 from moving horizontally. The pressure plate 14 also applies downward positive pressure to the weighing sensor 12. The weight of the screws in the receiving frame 15 is transmitted through the pressure plate 14 to the weighing sensor 12 below. The weighing sensor 12 transmits the real-time weight signal to the controller 17. When the weight of the screws in the receiving frame 15 reaches a preset threshold in the controller 17, the controller 17 triggers the buzzer 1 on the right end of the bracket 1. 8. An alarm is triggered to remind staff to prepare to replace the receiving frame 15. At the same time, a command is sent to the drive mechanism to start the servo motor 10. The output shaft of the servo motor 10 drives the worm gear 8 to rotate. The worm gear 8 meshes with and drives the worm wheel 9 to rotate. The worm wheel 9 drives the front connecting shaft 4 to rotate through the transmission shaft, thereby driving the two connecting shafts 4 to rotate synchronously. This causes the receiving frame 5 to rotate clockwise around the connecting shaft 4. The receiving frame 5 rotates clockwise from the initial tilted state to the horizontal position. From the horizontal position, the receiving frame 5 continues to rotate clockwise by ten degrees, forming a slight tilted state. The screws are then temporarily stored in the receiving frame 15. In this way, when the number of screws in the receiving frame 15 reaches a certain amount, the staff can be reminded to handle it in time, and the feeding of more screws into the receiving frame 15 will be automatically stopped.

[0049] Upon hearing the alarm from buzzer 18, the operator can directly remove the full receiving frame 15 without stopping the machine and place the empty receiving frame 15 onto the pressure plate 14, ensuring the receiving frame 15 aligns with the L-shaped positioning plate 16. This completes the positioning of the receiving frame 15. Since the receiving frame 5 has been adjusted to a temporary storage position, the screws continuously fed from upstream are temporarily stored within the receiving frame 5, preventing any interruption due to the replacement of the receiving frame 15. After replacing the receiving frame 15, the servo motor 10 rotates in the reverse direction, driving the receiving frame 5 to reset counterclockwise to its initial tilted state. At this point, the left opening of the receiving frame 5 is realigned with the rectangular slot 13, and the screws temporarily stored in the receiving frame 5 slide along the tilted surface into the new receiving frame 15, resuming the normal feeding process. In this way, when it is necessary to remove the receiving frame 15 to empty the internal screws, the screws are temporarily stored using the receiving frame 5, preventing them from scattering without stopping the machine for cleaning, thus avoiding disruption to the production line's continuity.

[0050] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0051] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A feeding device for screw production, comprising a base plate (11), wherein a bracket (1) is fixedly connected to the upper end of the base plate (11), and a feeding frame (2) is provided inside the bracket (1), characterized in that: The bracket (1) has two connecting plates (3) that are distributed front and back. Each of the two connecting plates (3) is rotatably connected to a connecting shaft (4) on the opposite side. A receiving frame (5) with an inclined setting and an open structure on the left side is fixedly connected between the two connecting shafts (4). The lower end of the unloading frame (2) extends into the interior of the receiving frame (5). A buffer pad (6) is installed at the bottom of the inner wall of the receiving frame (5). A driving mechanism is provided in front of the receiving frame (5). A rectangular groove (13) is provided through the left end of the bracket (1). A weighing sensor (12) is installed on the upper end of the base plate (11). A pressure plate (14) is provided above the base plate (11) that abuts against the upper end of the weighing sensor (12) and passes through the rectangular groove (13). A receiving frame (15) that passes through the rectangular groove (13) is placed on the upper end of the pressure plate (14). A controller (17) is installed on the upper end of the base plate (11). A buzzer (18) is installed on the right end of the bracket (1). A stabilizing mechanism is provided on the lower side of the pressure plate (14). The unloading frame (2) is equipped with a buffer component inside.

2. The feeding device for screw production according to claim 1, characterized in that: The drive mechanism includes a drive frame (7) fixedly connected to the front end of the front connecting plate (3). A worm gear (8) is rotatably connected inside the drive frame (7). A worm wheel (9) is meshed with the outer wall of the worm gear (8). A transmission shaft is fixedly connected between the worm wheel (9) and the connecting shaft (4) located on the front side. A servo motor (10) with its output end fixedly connected to the worm gear (8) is installed on the outer wall of the drive frame (7).

3. The feeding device for screw production according to claim 1, characterized in that: The stabilizing mechanism includes two mounting slots (19) distributed to the left and right at the upper end of the base plate (11). Guide plates (20) are fixedly connected inside the two mounting slots (19). Multiple sliding rods (21) distributed in front and behind are slidably connected through the outer walls of the two guide plates (20). The multiple sliding rods (21) are fixedly connected to the lower end of the pressure plate (14). Baffles (22) are fixedly connected to the lower end of the multiple sliding rods (21).

4. The feeding device for screw production according to claim 1, characterized in that: The buffer assembly includes a buffer plate (23) that is movably connected to the right end of the inner wall of the unloading frame (2) via a hinge. The buffer plate (23) is inclined. The lower end of the buffer plate (23) and the right end of the inner wall of the unloading frame (2) are movably connected to a shock absorber (24) via two hinges.

5. The feeding device for screw production according to claim 1, characterized in that: An L-shaped positioning plate (16) is fixedly connected to the upper end of the pressure plate (14), and the L-shaped positioning plate (16) is in contact with the right end and rear end of the receiving frame (15).

6. The feeding device for screw production according to claim 1, characterized in that: The distance between the front and rear sides of the inner wall of the receiving frame (15) is greater than the distance between the front and rear sides of the receiving frame (5).

7. The feeding device for screw production according to claim 1, characterized in that: Two connecting frames are fixedly connected between the outer wall of the unloading frame (2) and the top of the inner wall of the support (1).

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