Nut screening mechanism

Abstract

A nut screening mechanism comprises a feeding guide strip, a nut screening device, a discharging barrier strip, a side barrier strip, a mounting base, a push rod, a driving device, a conveying belt, a first sensor, a second sensor and a third sensor. A feeding guide strip is arranged on one side of the conveying belt, a side face blocking strip is arranged on the other side of the conveying belt, one end of the nut screening device is connected to the feeding guide strip, the other end of the nut screening device is connected to one end of the discharging blocking strip, and the nut screening device is used for blocking nuts placed incorrectly. A discharge hole is formed between the other end of the discharge barrier strip and the end part of the side barrier strip; mounting seats are arranged on the outer sides of the side face barrier strips, driving devices are mounted on the mounting seats, and push rods are mounted at the output ends of the driving devices. The utility model provides the nut screening mechanism according to the content, and solves the problems of slow production takt and low production efficiency caused by the fact that a nut screening mechanism in the prior art is usually used for screening and distinguishing at a material taking opening, taking away if the nut is qualified and pushing off if the nut is unqualified.

Description

Technical Field

[0001] The utility model relates to the technical field of nut screening, in particular to a nut screening mechanism. Background Art

[0002] Nuts, also known as nuts, are an indispensable fastener in mechanical engineering. They are usually used in conjunction with bolts or screws to achieve a firm connection between two or more parts through the tight combination of threads. The emergence of nuts has greatly improved the stability and safety of mechanical structures and provided important guarantees for the normal operation of various industrial equipment.

[0003] During the production process, the nuts may be placed in different positions due to the vibration of the conveyor, which may affect the subsequent production, transfer or assembly, etc. Therefore, a nut screening mechanism is needed to screen and identify the placement of the nuts. However, the nut screening mechanism in the prior art usually screens and identifies the nuts at the material taking port, and removes the qualified nuts and pushes the unqualified nuts away, resulting in slow production cycle and low production efficiency. Utility Model Content

[0004] The utility model aims to propose a nut screening mechanism, which solves the problem that the nut screening mechanism in the prior art usually performs screening and identification at the material taking port, and takes away qualified ones and pushes down unqualified ones, resulting in slow production cycle and low production efficiency.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A nut screening mechanism comprises a feeding guide bar, a nut screener, a discharging stop bar, a side stop bar, a mounting seat, a push rod, a driving device, a conveyor belt, a first sensor, a second sensor and a third sensor;

[0007] The feeding guide bar is provided on one side of the conveyor belt, and the side baffle bar is provided on the other side of the conveyor belt. One end of the nut screener is connected to the feeding guide bar, and the other end of the nut screener is connected to one end of the discharging baffle bar. The nut screener is used to block nuts that are not placed in the correct position. A discharging port is provided between the other end of the discharging baffle bar and the end of the side baffle bar.

[0008] The mounting seat is provided on the outer side of the side baffle, the driving device is installed on the mounting seat, the push rod is installed on the output end of the driving device, and the driving device is used to drive the push rod to push away the nut blocked by the nut screener;

[0009] The first sensor is used to detect whether there are nuts at the discharge port, the second sensor is used to detect whether there are enough nuts waiting in the area between the discharge baffle and the side baffle, the second sensor is connected to the conveyor belt, and the third sensor is used to detect whether there is material stuck at the nut screener, and the third sensor is connected to the driving device.

[0010] Further, the nut filter includes a connecting block, a mounting block and a filtering block;

[0011] The front end of the connecting block is connected to the discharging stop bar, the rear end of the connecting block is connected to the feeding guide bar, and the mounting block is installed on the top surface of the connecting block;

[0012] The screening block is obliquely mounted on the mounting block, a blanking opening is formed between the rear side of the screening block and the feeding guide bar, the screening block is provided with a screening opening and a blocking convex thorn, and the blocking convex thorn is located below the screening opening.

[0013] Specifically, the connecting block is provided with a first inclined surface, the first inclined surface is located below the top surface of the conveyor belt, and the first inclined surface is used to facilitate the falling of the nut from the conveyor belt to the outside of the connecting block.

[0014] Preferably, the side baffle is provided with a guide hole, the guide hole is arranged obliquely, the guide hole faces the screening port, and the push rod is arranged in the guide hole.

[0015] In some embodiments, the push rod is arranged perpendicular to the screening block.

[0016] Furthermore, the feeding guide bar is provided with a second inclined surface, and the second inclined surface is located above the conveyor belt. The second inclined surface is used to facilitate the nuts to slide from the outer side of the feeding guide bar to the conveyor belt.

[0017] Specifically, a baffle is provided on the front side of the discharging baffle bar, and the baffle is used to prevent the nuts at the material taking port from falling.

[0018] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0019] Through the feeding guide bar, nut screener, discharging baffle bar, side baffle bar, mounting seat, push rod, drive device, conveyor belt, first sensor, third sensor and discharging port, nuts with correct placement can be conveniently and quickly screened to facilitate subsequent material retrieval, and nuts with incorrect placement can be pushed away, thereby improving production efficiency and ensuring continuous production. Furthermore, through the second sensor, nuts can be prevented from clogging and accumulation to ensure production stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1This is a structural schematic diagram of a nut screening mechanism in one embodiment of the utility model;

[0021] Figure 2 This is a schematic structural diagram of a blanking port in one embodiment of the utility model;

[0022] Figure 3 This is a structural schematic diagram of a nut screener in one embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of a guide hole in one embodiment of the utility model;

[0024] Among them: feeding guide bar 1, second inclined surface 11, nut screener 2, connecting block 21, first inclined surface 211, mounting block 22, screening block 23, screening port 231, blocking ridge 232, blanking port 24, discharging baffle bar 3, baffle plate 31, side baffle bar 4, guide hole 41, mounting seat 5, push rod 6, driving device 7, conveyor belt 8, discharging port 9. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", "inner side", "outer side", "inner end", "outer end", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features, which are used to distinguish and describe the features, without distinction of order or importance. In the description of the present utility model, unless otherwise specified, "multiple" means more than two.

[0027] In one embodiment of the present invention, Figure 1-4As shown, a nut screening mechanism includes a feeding guide bar 1, a nut screener 2, a discharging stop bar 3, a side stop bar 4, a mounting seat 5, a push rod 6, a driving device 7, a conveyor belt 8, a first sensor (not shown in the figure), a second sensor (not shown in the figure) and a third sensor (not shown in the figure); the feeding guide bar 1 is provided on one side of the conveyor belt 8, and the side stop bar 4 is provided on the other side of the conveyor belt 8. One end of the nut screener 2 is connected to the feeding guide bar 1, and the other end of the nut screener 2 is connected to one end of the discharging stop bar 3. The nut screener 2 is used to block nuts that are not placed in the correct position. The other end of the discharging stop bar 3 and the side stop bar 4 are connected to each other. A discharge port 9 is provided between the ends of the baffle bar 4; the mounting seat 5 is provided on the outer side of the side baffle bar 4, the driving device 7 is installed on the mounting seat 5, the push rod 6 is installed on the output end of the driving device 7, and the driving device 7 is used to drive the push rod 6 to push away the nuts blocked by the nut screener 2; the first sensor is used to detect whether there are nuts at the discharge port 9, the second sensor is used to detect whether there are enough nuts waiting in the area between the discharge baffle bar 3 and the side baffle bar 4, the second sensor is connected to the conveyor belt 8, and the third sensor is used to detect whether there is material stuck at the nut screener 2, and the third sensor is connected to the driving device 7.In this embodiment, the conveyor belt 8 is arranged between the feeding guide bar 1 and the side baffle bar 4, and the conveyor belt 8 is used to convey nuts. The front side of the feeding guide bar 1 is connected to one end of the nut screener 2, and the other end of the nut screener 2 is connected to the rear side of the discharging baffle bar 3. The discharging port 9 is formed between the front side of the discharging baffle bar 3 and the front side of the side baffle bar 4. The first sensor is installed in the front area of ​​the side baffle bar 4, and the first sensor is connected to the external material taking device. The second sensor is installed on the inner side of the discharging baffle bar 3. The installation position of the second sensor can be based on actual production needs, that is, it is needed How many nuts are in the installation position designed for waiting for material, the third sensor is installed at the nut screener 2, and an external feeding device is provided on the outside of the feeding guide bar 1. When working, the external feeding device feeds from the outside of the feeding guide bar 1, and makes the nuts slide from the feeding guide bar 1 to the conveyor belt 8, and the conveyor belt 8 conveys the nuts. After the nuts are conveyed to the nut screener 2, the nut screener 2 selects the placement position of the nuts. If the swinging position of the nuts is correct, they can pass through the nut selector 2 smoothly. If the swinging position of the nuts is incorrect, they will be blocked by the nut screener 2. When there are nuts blocked by the nut screener 2 After that, the third sensor feeds back a signal to the driving device 7, the driving device 7 is a cylinder, and the driving device 7 drives the push rod 6 at its output end to push away the blocked nut, so as to facilitate the next nut with the correct placement to pass through the nut screener 2. After the nut passes through the nut screener 2, the nut is conveyed to the discharge port 9. The first sensor at the discharge port 9 detects that there is a nut, and then feeds back a signal to the external material taking device, and then the external material taking device takes the nut away. Further, during the material taking process of the external material taking device, subsequent nuts are continuously conveyed. When enough nuts are accumulated between the discharge baffle bar 3 and the side baffle bar 4, the first sensor When the second sensor detects that a set number of nuts are waiting for material, the second sensor feeds back information to the conveyor belt 8, and the conveyor belt 8 stops working to avoid blockage caused by continuous conveying of nuts; the present application uses the feeding guide bar 1, the nut screener 2, the discharging baffle 3, the side baffle 4, the mounting seat 5, the push rod 6, the driving device 7, the conveyor belt 8, the first sensor, the third sensor and the discharge port 9 to conveniently and quickly screen the nuts with the correct placement position, facilitate subsequent material collection, and push away the nuts with incorrect placement position, thereby improving production efficiency and ensuring continuous production. Furthermore, through the second sensor, the nuts are prevented from accumulating and clogging, thereby ensuring the stability of production.

[0028] like Figure 2-3As shown, the nut filter 2 includes a connecting block 21, a mounting block 22 and a screening block 23; the front end of the connecting block 21 is connected to the discharge baffle 3, the rear end of the connecting block 21 is connected to the feeding guide bar 1, and the mounting block 22 is installed on the top surface of the connecting block 21; the screening block 23 is obliquely installed on the mounting block 22, and a blanking port 24 is formed between the rear side of the screening block 23 and the feeding guide bar 1, and the screening block 23 is provided with a screening port 231 and a blocking ridge 232, and the blocking ridge 232 is located below the screening port 231. In this embodiment, the connecting block 21, the mounting block 22 and the screening block 23 are an integrally formed structure, the mounting block 22 is arranged on the top surface of the front end of the connecting block 21, the screening block 23 is obliquely arranged at the end corner of the mounting block 22 close to the belt 8, the screening block 23 is hollowed out to form the screening port 231, and the blocking ridge 232 is formed by hollowing out the screening port 231, and the bottom surface of the blocking ridge 232 is located above the top surface of the conveyor belt 8. During operation, if the swing position of the nut is correct, specifically in the nut If the through hole in the middle of the nut is in the same direction as the conveying direction of the conveyor belt 8, the nut can smoothly pass through the screening port 231. On the contrary, if the through hole in the middle of the nut is different from the conveying direction of the conveyor belt, the nut is blocked by the blocking thorn 232 and cannot pass through the screening port 231. After feedback from the third sensor, the driving device 7 drives the push rod 6 to push the nut from the conveyor belt 8 toward the drop port 24, so that the nut drops to the outside of the nut screener 2. The screening method is convenient and fast, thereby achieving the effect of improving the screening efficiency of the nut screening mechanism.

[0029] like Figure 3 As shown, the connecting block 21 is provided with a first inclined surface 211, and the first inclined surface 221 is located below the top surface of the conveyor belt 8. The first inclined surface 221 is used to facilitate the nuts to fall from the conveyor belt 8 to the outside of the connecting block 21. In this embodiment, the first inclined surface 221 is provided on the top surface of the rear end of the connecting block 21, and the first inclined surface 221 is close to the conveyor belt 8. The side of the first inclined surface 221 is at a high position, and the side of the first inclined surface 221 away from the conveyor belt 8 is at a low position. When the driving device 7 drives the push rod 6 to push the nut from the conveyor belt 8, the first inclined surface 221 can facilitate the nut to fall from the drop port 24, thereby achieving the effect of improving the drop efficiency of the nut screener 2.

[0030] like Figure 4As shown, the side baffle 4 is provided with a guide hole 41, the guide hole 41 is inclined, the guide hole 41 faces the screening port 231, and the push rod 6 is provided in the guide hole 41. In this embodiment, the guide hole 41 is provided on the side baffle 41. When working, the driving device 7 drives the push rod 6 to pass through the guide hole 41 and protrude from the guide hole 41, thereby pushing the nut down. The guide hole 41 plays a guiding role to prevent the push rod 6 from moving out of position and pushing the wrong nut.

[0031] like Figure 1-2 As shown, the push rod 6 is vertically arranged with the screening block 23. In this embodiment, the push rod 6 is vertically arranged with the screening block 23, which can ensure that the push rod 6 can push the nut from the drop opening 24, and prevent the push rod 6 from getting stuck or stuck when pushing the nut.

[0032] like Figure 2-3 As shown, the feeding guide bar 1 is provided with a second inclined surface 11, and the second inclined surface 11 is located above the conveyor belt 8. The second inclined surface 11 is used to facilitate the nuts to slide from the outside of the feeding guide bar 1 to the conveyor belt 8. In this embodiment, the side of the second inclined surface 11 close to the conveyor belt 8 is a low position, and the other side of the second inclined surface 11 away from the conveyor belt 8 is a high position. The outside of the feeding guide bar 1 is provided with an external feeding device. When working, after the external feeding device conveys the nuts to the second inclined surface 11, the nuts can slide to the conveyor belt 8 through the second inclined surface 11, thereby achieving the effect of improving the feeding efficiency and feeding stability of the nut screening mechanism.

[0033] like Figure 4 As shown, a baffle 31 is provided on the front side of the discharging baffle 3, and the baffle 31 is used to prevent the nuts from falling from the material taking port 9. In this embodiment, the baffle 31 is provided on the front side of the discharging baffle 3, and when the external material taking device takes away the nuts, the baffle 31 can play a blocking role to prevent the subsequent nuts from continuously conveying and falling from the material taking port 9, thereby ensuring the stability and reliability of production.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate 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 claims and their equivalents.

Claims

1. A nut screening mechanism, Features: It includes a feeding guide bar, a nut screener, a discharging stop bar, a side stop bar, a mounting seat, a push rod, a driving device, a conveyor belt, a first sensor, a second sensor and a third sensor; The feeding guide bar is provided on one side of the conveyor belt, and the side baffle bar is provided on the other side of the conveyor belt. One end of the nut screener is connected to the feeding guide bar, and the other end of the nut screener is connected to one end of the discharging baffle bar. The nut screener is used to block nuts that are not placed in the correct position. A discharging port is provided between the other end of the discharging baffle bar and the end of the side baffle bar. The mounting seat is provided on the outer side of the side baffle, the driving device is installed on the mounting seat, the push rod is installed on the output end of the driving device, and the driving device is used to drive the push rod to push away the nut blocked by the nut screener; The first sensor is used to detect whether there are nuts at the discharge port, the second sensor is used to detect whether there are enough nuts waiting in the area between the discharge baffle and the side baffle, the second sensor is connected to the conveyor belt, and the third sensor is used to detect whether there is material stuck at the nut screener, and the third sensor is connected to the driving device.

2. A nut screening mechanism according to claim 1, Features: The nut filter comprises a connecting block, a mounting block and a filtering block; The front end of the connecting block is connected to the discharging stop bar, the rear end of the connecting block is connected to the feeding guide bar, and the mounting block is installed on the top surface of the connecting block; The screening block is obliquely mounted on the mounting block, a blanking opening is formed between the rear side of the screening block and the feeding guide bar, the screening block is provided with a screening opening and a blocking convex thorn, and the blocking convex thorn is located below the screening opening.

3. A nut screening mechanism according to claim 2, Features: The connecting block is provided with a first inclined surface, the first inclined surface is located below the top surface of the conveyor belt, and the first inclined surface is used to facilitate the falling of nuts from the conveyor belt to the outside of the connecting block.

4. A nut screening mechanism according to claim 2, Features: The side baffle is provided with a guide hole, the guide hole is arranged obliquely, the guide hole faces the screening port, and the push rod is arranged in the guide hole.

5. A nut screening mechanism according to claim 4, Features: The push rod is arranged vertically to the screening block.

6. A nut screening mechanism according to claim 1, Features: The feeding guide bar is provided with a second inclined surface, and the second inclined surface is located above the conveyor belt. The second inclined surface is used to facilitate the nuts to slide from the outer side of the feeding guide bar to the conveyor belt.

7. A nut screening mechanism according to claim 1, Features: A baffle is provided on the front side of the discharging baffle bar, and the baffle is used to prevent the nut of the material taking port from falling.

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