A screw feeding structure for assembling a dust cleaner brush

Abstract

This utility model relates to a screw feeding structure for assembling a vacuum cleaner floor brush, comprising: a support frame; a feeding assembly, the feeding assembly including a material tube fixed on the support frame and a vent pipe disposed on one side of the material tube and connected to the material tube; a feeding assembly for feeding screws into the material tube; and a clamping assembly disposed on both sides of the material tube for clamping single screws fed by the feeding assembly and feeding the screws into the material tube. This screw feeding structure for vacuum cleaner floor brush assembly uses the feeding assembly to feed screws to the clamping assembly, which clamps single screws and feeds them to the feeding assembly. The design of the clamping assembly enables stable and precise automatic feeding of single screws, ensuring that the electric screwdriver bit always obtains the correct screw, thereby significantly improving the overall production efficiency and product assembly quality consistency of the vacuum cleaner floor brush fastening process.

Description

Technical Field

[0001] This utility model belongs to the field of vacuum cleaner assembly technology, specifically relating to a screw feeding structure for assembling a vacuum cleaner floor brush. Background Technology

[0002] On assembly lines for home appliances such as vacuum cleaners, the assembly of components like floor brushes often involves screw fastening. Automating this process is crucial for improving production efficiency, reducing labor costs, and ensuring consistent product quality. A key aspect of an automated fastening system is ensuring that screws are stably, reliably, and individually fed to the electric screwdriver bit.

[0003] Currently, common automatic screw feeding methods can be mainly divided into the following two categories: 1. Manual feeding method: The operator manually picks and places screws into the screwdriver bit. This method is inefficient, labor-intensive, and prone to quality problems such as missed screws and stripped threads due to human factors, and cannot meet the cycle time and reliability requirements of modern automated production lines; 2. Vibratory feeder direct feeding method: This is currently the mainstream automation solution. It uses a vibratory feeder to sort and orient screws, then directly delivers them to the vicinity of the electric screwdriver bit via a straight groove or flexible hose. However, this method has a common and troublesome technical problem in practical applications: the "spitting out" phenomenon. Due to the continuous vibration inertia of the vibratory feeder or residual air pressure in the air hose, after one screw is removed, subsequent screws can easily be fed out uncontrollably (multiple screws fed out at once), causing jamming, screw accumulation, or screws falling off at the screwdriver bit. This not only causes production interruptions and requires manual cleaning, but also seriously affects the operating efficiency and stability of the equipment. Utility Model Content

[0004] This utility model provides a screw feeding structure for assembling a vacuum cleaner floor brush, thereby enabling single-screw feeding, avoiding screw jamming at the electric screwdriver bit, ensuring the stability and continuity of the production process, and thus improving the efficiency of screw fastening.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a screw feeding structure for assembling a vacuum cleaner floor brush, comprising: Support frame; A material feeding assembly, comprising a material tube fixed on the support frame and a vent pipe disposed on one side of the material tube and connected to the material tube; A feeding assembly for feeding screws into the feed tube; A clamping assembly is disposed on both sides of the feed tube and is used to clamp a single screw conveyed by the feeding assembly and feed the screw into the feed tube.

[0006] Optimally, the clamping assembly includes a first sliding plate and a second sliding plate slidably disposed on the top of the support frame and located on both sides of the material tube, a first clamping plate integrally connected to the inner side of the first sliding plate, a second clamping plate integrally connected to the inner side of the second sliding plate, a first clamping groove formed on the inner side of the first clamping plate, and a second clamping groove formed on the inner side of the second clamping plate.

[0007] Optimally, the clamping assembly further includes a baffle integrally connected to one side of the second slide plate and a through groove formed on the baffle plate, and the feeding assembly feeds the screw into the first clamping groove and the second clamping groove through the through groove.

[0008] Optimally, the feeding assembly includes a side fixing plate fixed to one side of the support frame, a feed plate fixed at intervals to one side of the side fixing plate, and a feed trough formed between the feed plates.

[0009] Optimally, the clamping assembly further includes a first extension plate integrally connected to one side of the first slide plate, a first upright plate integrally connected to the top of the first extension plate, a first slot penetrating the first upright plate, and a first mounting groove formed between the first upright plate and the first slide plate.

[0010] Optimally, the clamping assembly further includes a second extension plate integrally connected to one side of the second slide plate, a second upright plate integrally connected to the top of the second extension plate, a second slot penetrating the second upright plate, and a second mounting groove formed between the second upright plate and the second slide plate.

[0011] Optimally, the clamping assembly further includes a positioning block fixed to the top of the support frame, a first fixing plate and a second fixing plate fixed to the top of the support frame and spaced apart, and a sliding groove formed between the positioning block and the first fixing plate and the second fixing plate, wherein the first sliding plate and the second sliding plate are disposed in the sliding groove.

[0012] Optimally, the clamping assembly further includes a cylinder mounting plate fixed to the top of the support frame, a push cylinder fixed to the top of the cylinder mounting plate, and a first floating joint and a second floating joint connected to the push cylinder. The first floating joint is engaged in the first mounting groove and the first slot, and the second floating joint is engaged in the second mounting groove and the second slot.

[0013] Optimally, the material feeding assembly further includes a guide portion inclinedly disposed at the top of the material tube.

[0014] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: This utility model relates to a screw feeding structure for assembling vacuum cleaner floor brushes. The screw is fed to the clamping component via a feeding assembly. The clamping component holds a single screw and feeds it to the unloading component. The design of the clamping component enables stable and precise automatic feeding of single screws, ensuring that the electric screwdriver bit always obtains the correct screw. This significantly improves the overall production efficiency of the vacuum cleaner floor brush fastening process and the consistency of product assembly quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram of the present invention from another angle; Figure 3 This is a partial structural schematic diagram of the present invention; Figure 4 This is a partial structural schematic diagram of the present invention; Figure 5 This is a partial structural schematic diagram of the present invention; Figure 6 This utility model Figure 5 A structural diagram from another angle; Explanation of reference numerals in the attached figures: 1. Base plate; 2. Support plate; 3. Carrier plate; 4. Cylinder mounting plate; 5. Push cylinder; 6. Positioning block; 7. First fixing plate; 8. Second fixing plate; 9. Top plate; 10. Mounting plate; 11. Sensor; 12. Side fixing plate; 13. Feed plate; 14. Feed chute; 15. Material pipe; 16. Vent pipe; 17. Guide part; 18. First sliding plate; 19. First extension plate; 20. First upright plate; 21. First mounting groove; 22. First slot; 23. First floating joint; 24. First clamping plate; 25. First clamping groove; 26. Second sliding plate; 27. Second extension plate; 28. Second upright plate; 29. ​​Second mounting groove; 30. Second slot; 31. Second floating joint; 32. Second clamping plate; 33. Second clamping groove; 34. Baffle; 35. Through groove. Detailed Implementation

[0016] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0017] like Figure 1-3 The diagram shows the structure of the screw feeding structure for assembling the floor brush of the vacuum cleaner according to this utility model. The feeding structure includes a support frame, a feeding component, a feeding component, and a clamping component. The feeding component, feeding component, and clamping component are mounted on the support frame. The feeding component is used to transport the screw to the clamping component. The clamping component feeds the screw to the feeding component. The feeding component feeds the screw into the electric screwdriver bit. The electric screwdriver bit locks the screw into the floor brush of the vacuum cleaner.

[0018] The support frame includes a base plate 1, a support plate 2, and a carrier plate 3. The base plate 1 is fixed to the screw feeding table by screws. There are two support plates 2, which are vertically fixed to the top of the base plate 1 by screws. The carrier plate 3 is fixed to the top of the two support plates 2 by screws.

[0019] The feeding assembly includes a side fixing plate 12, a feed plate 13, and a feed trough 14. The side fixing plate 12 is fixed to one side of the vibratory feeder by screws, and the vibratory feeder feeds screws into the feed trough 14. There are two feed plates 13, integrally connected to one side of the side fixing plate 12 and spaced apart. The feed trough 14 is formed between the two feed plates 13. Specifically, the screw includes a screw head and a screw root, and the diameter of the screw head is larger than the diameter of the screw root. The screw head is engaged with the upper surface of the feed plate 13, and the screw root is located in the feed trough 14.

[0020] The first fixing plate 7 and the second fixing plate 8 are fixed to the top of the carrier plate 3 by screws, and a clearance groove is provided between the first fixing plate 7 and the second fixing plate 8 to allow the feed plate 13 to pass through. The positioning block 6 is fixed to the top of the carrier plate 3 by screws, and a sliding groove is formed between the positioning block 6 and the first fixing plate 7 and the second fixing plate 8 for mounting the first sliding plate 18 and the second sliding plate 26.

[0021] The top plate 9 is fixed to the top of the first fixing plate 7, the second fixing plate 8, and the positioning block 6 by screws. The mounting plate 10 is fixedly installed on the upper surface of the top plate 9. The sensor 11 is installed on the mounting plate 10 and faces the inlet of the feed tube 15. In the initial state, the first sliding plate 18 and the second sliding plate 26 are kept together, so that the first clamping groove 25 and the second clamping groove 33 together form a clamping groove for supporting the screw head. At this time, the baffle 34 is removed, so that the feed groove 14 of the feeding assembly communicates with the clamping groove.

[0022] The feeding assembly delivers the screw to the clamping slot for support. When the sensor 11 detects that the screw has been delivered to the predetermined position in the clamping slot, the sensor 11 sends a signal to the background control system. After receiving the signal, the control system (such as PLC) controls the push cylinder 5 to move, driving the first slide plate 18 and the second slide plate 26 to move in opposite directions to open (the sensor 11 is a commercially available diffuse reflection type photoelectric sensor).

[0023] During this process, two key actions are completed simultaneously: First, the first clamping groove 25 separates from the second clamping groove 33, and the screw, which has lost its support, falls into the material tube 15 below under the action of gravity; Second, the baffle 34, which is linked with the second slide plate 26, moves synchronously to the closed position, blocking the outlet of the feed groove 14 and preventing subsequent screws from entering, thereby achieving precise release of a single screw and interruption of the material supply.

[0024] There are two cylinder mounting plates 4, which are fixed to the top of the carrier plate 3 by screws. The cylinder body of the push cylinder 5 is fixed to the cylinder mounting plate 4 by screws. The push cylinder 5 pushes the first slide plate 18 and the second slide plate 26 to move within the slide groove. Figure 4 As shown, the first slide plate 18 is disposed in the slide groove, the first extension plate 19 is integrally connected to the outside of the first slide plate 18, and the first upright plate 20 is integrally connected to the top of the first extension plate 19. The first slot 22 passes through the first upright plate 20, and a first mounting groove 21 is formed between the first slide plate 18 and the first upright plate 20.

[0025] The first floating joint 23 is installed on the first slot 22 and the first mounting slot 21 and is connected to one of the sets of push cylinders 5. The push cylinders 5 drive the first slide plate 18 to move in the slide groove. The first clamping plate 24 is integrally connected to the top of the first slide plate 18 and extends towards the side closer to the material tube 15. The first clamping groove 25 is opened on the inner side of the first clamping plate 24 and cooperates with the second clamping groove 33 of the second clamping plate 32 to complete the clamping of the screw.

[0026] like Figure 5 , 6 As shown, the second slide plate 26 is disposed within the slide groove, the second extension plate 27 is integrally connected to the outside of the second slide plate 26, and the second upright plate 28 is integrally connected to the top of the second extension plate 27. The second slot 30 passes through the second upright plate 28, and a second mounting groove 29 is formed between the second slide plate 26 and the second upright plate 28.

[0027] The second floating joint 31 is installed on the second slot 30 and the second mounting slot 29 and is connected to another set of push cylinders 5. The push cylinders 5 drive the second slide plate 26 to move within the slide groove. The second clamping plate 32 is integrally connected to the top of the second slide plate 26 and extends towards the side closer to the material tube 15. The second clamping groove 33 is opened on the inner side of the second clamping plate 32 and cooperates with the first clamping groove 25 of the first clamping plate 24 to jointly complete the clamping of the screw.

[0028] The baffle 34 is integrally connected to the side of the second slide plate 26 near the first slide plate 18, and a groove 35 is formed between the baffle 34 and the second slide plate 26. When the first slide plate 18 and the second slide plate 26 are brought together, the first clamping groove 25 and the second clamping groove 33 are aligned to form a clamping groove. At this time, the groove 35 is aligned with the feed groove 14 of the feeding assembly, and the screw in the feed groove 14 can pass forward through the groove 35 and be fed to the top of the feed tube 15, where it is clamped by the first clamping groove 25 and the second clamping groove 33 (specifically, the screw head abuts against the upper surface of the first clamping plate 24 and the second clamping plate 32, and the screw root is located in the first clamping groove 25 and the second clamping groove 33). Figure 4 As shown, a notch is provided on one side of the feed tube 15 to allow screws to pass through.

[0029] When the first slide plate 18 and the second slide plate 26 move to the sides, the second slide plate 26 will pull the baffle 34 outward, and the baffle 34 will block the outlet of the feed trough 14 to prevent the screws from continuing to be conveyed forward. The screws in the first clamping groove 25 and the second clamping groove 33, due to the lack of clamping by the first clamping plate 24 and the second clamping plate 32, will fall into the lower feed tube 15 under the action of gravity, thereby realizing the single screw feeding.

[0030] The feed tube 15 is vertically mounted on the base plate 1 and located between the first sliding plate 18 and the second sliding plate 26. The clamping assembly clamps a single screw and feeds it into the feed tube 15. The feed tube 15 is vertically positioned, with its upper inlet located directly below the clamping groove formed by the first clamping groove 25 and the second clamping groove 33 to catch any falling screws. The lower outlet of the feed tube 15 is connected to the bit inlet of the electric screwdriver bit via a flexible feed pipe (not shown in the figure). An interface is provided on the upper side wall of the feed tube 15, through which a vent pipe 16 communicates with the interior of the feed tube 15. The other end of the vent pipe 16 is connected to an external air pump (not shown in the figure).

[0031] During operation, once the screw is released and falls into the feed tube 15, the air pump starts, injecting compressed air into the feed tube 15 through the air pipe 16. This airflow creates downward pressure within the feed tube 15, pushing the screw rapidly down along the feed tube 15 and subsequent feeding pipes, thus conveying the screw to the electric screwdriver bit. Subsequently, the electric screwdriver bit, driven by an external drive mechanism (such as a robotic arm or multi-axis module), moves above the screw hole of the vacuum cleaner's floor brush, performing a downward rotation action to lock the screw into place. (A second sensor (such as a through-beam or reflective photoelectric sensor) is installed below the inlet of the feed tube 15. The detection light path of this second sensor passes laterally through the inner cavity of the feed tube 15 to monitor in real time whether a screw has fallen and passed through the detection area.) When the second sensor detects a screw passing through, it sends a signal to the control system (such as a PLC). Upon receiving the signal, the control system starts the air pump to blow the screw.

[0032] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A screw feeding structure for assembling a vacuum cleaner floor brush, characterized in that, It includes: Support frame; The material feeding assembly includes a material tube (15) fixed on the support frame and a vent pipe (16) disposed on one side of the material tube (15) and connected to the material tube (15); A feeding assembly for feeding screws into the feed tube (15); The clamping assembly is disposed on both sides of the feed tube (15) and is used to clamp a single screw conveyed by the feeding assembly and feed the screw into the feed tube (15).

2. The screw feeding structure for assembling a vacuum cleaner floor brush according to claim 1, characterized in that: The clamping assembly includes a first sliding plate (18) and a second sliding plate (26) slidably disposed on the top of the support frame and located on both sides of the material tube (15), a first clamping plate (24) integrally connected to the inner side of the first sliding plate (18), a second clamping plate (32) integrally connected to the inner side of the second sliding plate (26), a first clamping groove (25) opened on the inner side of the first clamping plate (24), and a second clamping groove (33) opened on the inner side of the second clamping plate (32).

3. The screw feeding structure for assembling a vacuum cleaner floor brush according to claim 2, characterized in that: The clamping assembly also includes a baffle (34) integrally connected to one side of the second slide plate (26) and a through groove (35) formed on the baffle (34). The feeding assembly feeds the screw through the through groove (35) into the first clamping groove (25) and the second clamping groove (33).

4. The screw feeding structure for assembling a vacuum cleaner floor brush according to claim 1, characterized in that: The feeding assembly includes a side fixing plate (12) fixed to one side of the support frame, a feed plate (13) fixed at intervals to one side of the side fixing plate (12), and a feed groove (14) formed between the feed plates (13).

5. The screw feeding structure for assembling a vacuum cleaner floor brush according to claim 2, characterized in that: The clamping assembly further includes a first extension plate (19) integrally connected to one side of the first slide plate (18), a first upright plate (20) integrally connected to the top of the first extension plate (19), a first slot (22) penetrating the first upright plate (20), and a first mounting slot (21) formed between the first upright plate (20) and the first slide plate (18).

6. The screw feeding structure for assembling a vacuum cleaner floor brush according to claim 5, characterized in that: The clamping assembly further includes a second extension plate (27) integrally connected to one side of the second slide plate (26), a second upright plate (28) integrally connected to the top of the second extension plate (27), a second slot (30) penetrating the second upright plate (28), and a second mounting slot (29) formed between the second upright plate (28) and the second slide plate (26).

7. The screw feeding structure for assembling a vacuum cleaner floor brush according to claim 2, characterized in that: The clamping assembly further includes a positioning block (6) fixed to the top of the support frame, a first fixing plate (7) and a second fixing plate (8) fixed to the top of the support frame and spaced apart, and a sliding groove formed between the positioning block (6) and the first fixing plate (7) and the second fixing plate (8), wherein the first sliding plate (18) and the second sliding plate (26) are disposed in the sliding groove.

8. The screw feeding structure for assembling a vacuum cleaner floor brush according to claim 6, characterized in that: The clamping assembly also includes a cylinder mounting plate (4) fixed to the top of the support frame, a push cylinder (5) fixed to the top of the cylinder mounting plate (4), and a first floating joint (23) and a second floating joint (31) connected to the push cylinder (5). The first floating joint (23) is engaged in the first mounting groove (21) and the first slot (22), and the second floating joint (31) is engaged in the second mounting groove (29) and the second slot (30).

9. The screw feeding structure for assembling a vacuum cleaner floor brush according to claim 1, characterized in that: The material feeding assembly also includes a guide (17) that is inclinedly disposed at the top of the material tube (15).

Images