Screw feeding device

Abstract

The utility model discloses a screw feeding device which comprises a stock bin, a lifting mechanism and a feeding mechanism, the lifting mechanism is arranged on one side of the stock bin, and the feeding mechanism is arranged on the other side of the stock bin. Screws are transferred to the lifting mechanism from the stock bin and transferred to the feeding mechanism under the action of the lifting mechanism, and arrangement and conveying of the screws are completed under the action of the feeding mechanism. The feeding mechanism comprises a material guide groove and a vibrator, the top of the vibrator is detachably connected with the bottom face of the material guide groove, a material guide plate is arranged at the end, stretching into the material lifting mechanism, of the material guide groove, the material guide groove comprises a pair of guide strips which are elastically connected, and a flow channel is formed between the guide strips. The screw feeding device can adapt to screws of various models, the manufacturing cost of equipment is reduced, use is convenient, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, in particular to a screw feeding device. Background Art

[0002] In the traditional mechanical assembly process, when assembling screws, screws are generally picked up one by one manually. With the development of the mechanical industry, a large number of screw assemblies are required during mechanical assembly. The manual assembly efficiency cannot meet the needs of the industry development. In order to improve the production efficiency, a batch of equipment for automatically supplying screws has emerged to replace the traditional manual working method. However, when such equipment supplies screws of different models, generally the feeding trough corresponding to the screw model needs to be replaced. Therefore, a device needs to be matched with multiple feeding troughs to meet the production requirements. This not only increases the cost, is inconvenient for popularization, but also is not convenient enough during actual use. Content of the Utility Model

[0003] To solve the above technical problems, the utility model provides a screw feeding device.

[0004] The technical solution of the utility model is as follows: A screw feeding device includes a material bin, a material lifting mechanism and a feeding mechanism. A material lifting mechanism is arranged on one side of the material bin, and a feeding mechanism is arranged on the other side. The feeding mechanism includes a feeding trough and a vibrator. The top of the vibrator is detachably connected to the bottom surface of the feeding trough. A guiding plate is arranged at one end of the feeding trough extending into the material lifting mechanism; the feeding trough includes a pair of guiding bars connected elastically, and a flow channel is formed between the guiding bars.

[0005] Further, the top of the material bin is open. An inner bin is arranged on one side of the material bin, and a side bin is arranged on the other side. The inner bin is communicated with the side bin. A slope is arranged at the bottom of the inner bin, and the lowest point of the slope is close to the side bin; the feeding mechanism passes through the inner bin and enters the side bin, and the material lifting mechanism is arranged in the side bin.

[0006] Further, a positioning groove for cooperating with the material lifting mechanism is arranged on one side of the side bin close to the inner bin, and an interference-fitted bearing is arranged on the inner side wall of the positioning groove.

[0007] Further, the material lifting mechanism includes a second motor and a rotating drum. One side of the rotating drum is open, and the rotation center of the other side is fixedly connected to the output shaft of the second motor. A plurality of scraping blades are arranged on the circumferential direction of the inner side wall of the rotating drum; a convex ring for cooperating with the inner ring of the bearing is arranged at one end of the rotating drum far from the second motor.

[0008] Further, symmetrically distributed supporting rollers are arranged at the bottom of the side bin, and an annular groove for cooperating with the supporting rollers is arranged on the outer side surface of the rotating drum.

[0009] Further, a rotatably connected brush is arranged above the feeding trough corresponding to the material bin, and a first motor is arranged at one end of the brush. The first motor is fixedly connected to the inner bin.

[0010] Further, multiple groups of elastic adjustment mechanisms are provided on the bottom of the guide bar in the length direction. The elastic adjustment mechanism includes a fixed block and a first fastener. An integrated fixed block is provided on the bottom of the guide bar. The first fastener passes through the fixed block, and a first spring is provided on the circumference of the first fastener. Both ends of the first spring are in contact with the fixed block respectively.

[0011] Further, a pressing plate matching the flow channel is provided on the top surface of the material guiding groove. The pressing plate and the material guiding groove are fixedly connected through a second fastener. A second spring is provided on the circumference of the second fastener. Both ends of the second spring are in contact with the pressing plate and the material guiding groove respectively; a rectangular hole is provided at the position of the pressing plate corresponding to the second fastener.

[0012] Compared with the prior art, the advantages of the present utility model are as follows: The material guiding groove is detachably connected to the vibrator, which is convenient for adjusting or replacing the material guiding groove; by changing the spacing of the elastic connecting guide bars and adjusting the flow channel to match the screws of the corresponding models, it can be adapted to feed various models of screws. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a schematic diagram of the whole of the present utility model;

[0015] Figure 2 It is a schematic cross-sectional view of the bin of the present utility model;

[0016] Figure 3 It is a schematic diagram of the lifting mechanism of the present utility model;

[0017] Figure 4 It is a schematic diagram of the linear vibration feeding mechanism of the present utility model;

[0018] Figure 5 It is Figure 4 The enlarged view of part A in

[0019] Wherein: 1. Silo; 2. Hoisting mechanism; 3. Feeding mechanism; 11. Inner bin; 12. Side bin; 13. Brush; 111. Slope; 121. Roller; 122. Positioning groove; 123. Bearing; 131. First motor; 21. Second motor; 22. Rotating cylinder; 23. Scraping blade; 221. Annular groove; 222. Convex ring; 31. Vibrator; 32. Guide chute; 33. Pressing plate; 321. Guide plate; 322. Guide bar; 323. Flow channel; 324. First fastener; 325. First spring; 326. Fixed block; 331. Rectangular hole; 332. Second fastener; 333. Second spring. Detailed implementation manners

[0020] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be described clearly and completely below. Obviously, the described embodiments are only a part rather than all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without any creative efforts shall fall within the scope protected by the present utility model.

[0021] The detailed implementation manners of the present utility model will be described below in conjunction with the accompanying drawings:

[0022] As Figures 1 to 5 shown, a screw feeding device includes a silo 1, a hoisting mechanism 2 and a feeding mechanism 3. The hoisting mechanism 2 is arranged on one side of the silo 1, and the feeding mechanism 3 is arranged on the other side. The top of the silo 1 is open. An inner bin 11 is arranged on one side of the silo 1, and a side bin 12 is arranged on the other side. The inner bin 11 communicates with the side bin 12. A slope 111 is arranged at the bottom of the inner bin 11, and the lowest point of the slope 111 is close to the side bin 12; the feeding mechanism 3 passes through the inner bin 11 and enters the side bin 12, and the hoisting mechanism 2 is arranged in the side bin 12. A positioning groove 122 for cooperating with the hoisting mechanism 2 is arranged on the side of the side bin 12 close to the inner bin 11, and an interference-fitted bearing 123 is arranged on the inner side wall of the positioning groove 122. The radial position of the hoisting mechanism 2 can be determined through the positioning groove 122. Screws fall from the top of the silo 1 into the inner bin 11 and fall into the hoisting mechanism 2 of the side bin 12 along the slope 111. The hoisting mechanism 2 drives the screws to fall onto the feeding mechanism 3, and the screws are sorted and output on the feeding mechanism 3. A rotatably connected brush 13 is arranged above the guide chute 32 corresponding to the inner bin 11. A first motor 131 is arranged at one end of the brush 13, and the first motor 131 is fixedly connected to the inner bin 11. The first motor 131 drives the brush 13 to rotate, and the brush 13 sweeps the screws with uneven discharging back into the inner bin 11 from the guide chute 32, preventing material blockage and improving the efficiency of sorting.

[0023] The screw lifting mechanism 2 includes a second motor 21 and a rotary drum 22. One side of the rotary drum 22 is open, and the rotation center of the other side is fixedly connected to the output shaft of the second motor 21. A plurality of scraping blades 23 are provided on the circumferential direction of the inner side wall of the rotary drum 22. Screws fall into the rotary drum 22 from the inside. The second motor 21 drives the rotary drum 22 to rotate, and the scraping blades 23 transfer the plurality of screws from the bottom of the rotary drum 22 to the feeding mechanism 3 at the upper part. A convex ring 222 that fits the inner ring of the bearing 123 is provided at one end of the rotary drum 22 away from the second motor 21. The cooperation between the convex edge and the bearing 123 forms a rotational connection relationship between the rotary drum 22 and the side bin 12. Symmetrically distributed supporting rollers 121 are provided at the bottom of the side bin 12. An annular groove 221 that fits the supporting rollers 121 is provided on the outer side surface of the rotary drum 22. The rotary drum 22 is vertically supported by the supporting rollers 121.

[0024] The feeding mechanism 3 includes a material guiding groove 32 and a vibrator 31. The top of the vibrator 31 is detachably connected to the bottom surface of the material guiding groove 32. The detachable material guiding groove 32 facilitates the replacement and maintenance of the material guiding groove 32, and at the same time facilitates the adjustment of the width of the flow channel 323 of the material guiding groove 32. The material guiding groove 32 includes a pair of guiding bars 322 connected elastically. A flow channel 323 is formed between the guiding bars 322. A plurality of groups of elastic adjustment mechanisms are provided at the bottom of the guiding bars 322 in the length direction. The elastic adjustment mechanism includes a fixing block 326 and a first fastener 324. An integrated fixing block 326 is provided at the bottom of the guiding bar 322. The first fastener 324 passes through the fixing block 326. A first spring 325 is provided on the circumference of the first fastener 324. Both ends of the first spring 325 are in contact with the fixing block 326 respectively. By adjusting the tightness of the first fastener 324, the distance between the guiding bars 322 can be adjusted, thereby changing the width of the flow channel 323 to adapt to different models of screws. One end of the material guiding groove 32 extending into the screw lifting mechanism 2 is provided with a material guiding plate 321. The material guiding plate 321 guides the screws to fall from the scraping blades 23 onto the material guiding groove 32.

[0025] A pressing plate 33 that fits the flow channel 323 is provided on the top surface of the material guiding groove 32. The pressing plate 33 and the material guiding groove 32 are fixedly connected by a second fastener 332. A second spring 333 is provided on the circumference of the second fastener 332. Both ends of the second spring 333 are in contact with the pressing plate 33 and the material guiding groove 32 respectively. By adjusting the tightness of the second fastener 332, the distance between the pressing plate 33 and the material guiding groove 32 is changed, so that the pressing plate 33 adapts to the conveying of different models of screws at this time, and the screws are kept stable during the feeding process. A rectangular hole 331 is provided at the position of the pressing plate 33 corresponding to the second fastener 332. When the distance between the guiding bars 322 changes, the rectangular hole 331 facilitates the same pressing plate 33 to adapt to the second fastener 332 with the changed distance, improving the adaptability of the pressing plate 33.

[0026] The working principle of the specific embodiment of the present utility model is as follows: Adjust the tightness of the first fastener 324 according to the model of the screw to change the distance between the guide bars 322; and then adjust the tightness of the second fastener 332 to make the gap between the pressing plate 33 and the material guide groove 32 appropriate, so that the screws of the corresponding model can stably move along the flow channel 323. Assemble the adjusted material guide groove 32 onto the vibrator 31. Import the screws into the inner bin 11, and the screws flow into the rotating cylinder 22 along the slope 111. Start the second motor 21, and the rotating cylinder 22 transfers the screws to one end of the material guide groove 32 through the scraping blade 23. With the operation of the vibrator 31, the screws move along the diversion groove, gradually complete the process of sorting the materials in cooperation with the shape of the flow channel 323, and move from one end of the material guide groove 32 near the material lifting mechanism 2 to the other end.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "upper", "lower", "left", "right", "front", "rear" and similar expressions used herein are only for the purpose of illustration.

[0028] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A screw feeding device, comprising a material bin (1), a material lifting mechanism (2) and a feeding mechanism (3), wherein the material lifting mechanism (2) is arranged on one side of the material bin (1), and the feeding mechanism (3) is arranged on the other side, and is characterized in that: The feeding mechanism (3) includes a material guiding groove (32) and a vibrator (31). The top of the vibrator (31) is detachably connected to the bottom surface of the material guiding groove (32). One end of the material guiding groove (32) extending into the material lifting mechanism (2) is provided with a material guiding plate (321). The material guiding groove (32) includes a pair of guiding bars (322) connected elastically, and a flow channel (323) with adjustable width is formed between the guiding bars (322).

2. The screw feeding device according to claim 1, characterized in that: The top of the material bin (1) is open. An inner bin (11) is provided on one side of the material bin (1), and a side bin (12) is provided on the other side. The inner bin (11) is communicated with the side bin (12). A slope (111) is provided at the bottom of the inner bin (11), and the lowest point of the slope (111) is close to the side bin (12). The feeding mechanism (3) passes through the inner bin (11) and enters the side bin (12), and the material lifting mechanism (2) is provided in the side bin (12).

3. The screw feeding device according to claim 2, wherein: A positioning groove (122) cooperating with the material lifting mechanism (2) is provided on one side of the side bin (12) close to the inner bin (11), and an interference-fitted bearing (123) is provided on the inner side wall of the positioning groove (122).

4. The screw feeding device according to claim 3, wherein: The material lifting mechanism (2) includes a second motor (21) and a rotating cylinder (22). One side of the rotating cylinder (22) is open, and the rotation center of the other side is fixedly connected to the output shaft of the second motor (21). A plurality of scraping blades (23) are provided on the circumferential direction of the inner side wall of the rotating cylinder (22). A convex ring (222) cooperating with the inner ring of the bearing (123) is provided at one end of the rotating cylinder (22) away from the second motor (21).

5. The screw feeding device according to claim 4, characterized in that: Symmetrically distributed supporting rollers (121) are provided at the bottom of the side bin (12), and an annular groove (221) cooperating with the supporting rollers (121) is provided on the outer side surface of the rotating cylinder (22).

6. The screw feeding device according to claim 2, wherein: A rotatably connected brush (13) is provided above the material guiding groove (32) corresponding to the material bin (1). A first motor (131) is provided at one end of the brush (13), and the first motor (131) is fixedly connected to the inner bin (11).

7. The screw feeding device according to claim 1, characterized in that: A plurality of groups of elastic adjusting mechanisms are provided on the bottom of the guiding bar (322) in the length direction. The elastic adjusting mechanism includes a fixing block (326) and a first fastener (324). The fixing block (326) is integrally provided at the bottom of the guiding bar (322). The first fastener (324) passes through the fixing block (326), and a first spring (325) is provided on the circumference of the first fastener (324). The two ends of the first spring (325) are respectively in contact with the fixing block (326).

8. The screw feeding device according to claim 1, wherein: A pressing plate (33) matching the flow channel (323) is arranged on the top surface of the material guiding groove (32). The pressing plate (33) is fixedly connected with the material guiding groove (32) through a second fastener (332). A second spring (333) is arranged on the circumference of the second fastener (332). Two ends of the second spring (333) are respectively in contact with the pressing plate (33) and the material guiding groove (32). A rectangular hole (331) is arranged at the position of the pressing plate (33) corresponding to the second fastener (332).

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