A visual inspection screening machine

Abstract

The utility model relates to the technical field of screening equipment, a visual inspection screening machine, including a first frame and a second frame arranged adjacently, the first frame is provided with a material sorting mechanism at the material input end, the material sorting mechanism includes a first material sorting piece and a second material sorting piece that are staggered and distributed front and back relative to the material feeding direction, the first material sorting piece and the second material sorting piece are respectively provided with a material blocking structure located on both sides of the material feeding path; the first frame is provided with a return hopper located outside the first material sorting piece, the return hopper is provided with an upper opening adjacent to the outer edge of the turntable mechanism, and the lateral profile of the upper opening covers the area between the material input end and the second material sorting piece. The utility model is conducive to solving the problem that some existing visual screening machines are not equipped with a material recovery mechanism in the material sorting area at the turntable feeding end, and the materials that do not meet the material feeding conditions generated during the material sorting are easy to fall in a disorderly manner, difficult to collect, and even cause equipment failure.

Description

Technical Field

[0001] The utility model relates to the technical field of screening machine equipment, in particular to a visual detection screening machine. Background Art

[0002] In the industrial production process, many small parts products are produced. The products need to undergo quality inspection to see if they are qualified before they can be shipped. In the traditional method, workers usually manually inspect and sort the products, which requires a lot of manpower and is inefficient. Since the parts are small and the number is huge, workers need to maintain high-intensity concentration at all times when picking them manually. However, as time goes by, the workers become more tired and cannot maintain work efficiency for a long time. There are also some that use screening machines to replace manual work. For example, Chinese patent CN218655598U discloses a bead visual screening machine, including a frame and a turntable mechanism arranged on the large plate inside the frame, and along the rotating side of the turntable mechanism, there are sequentially arranged a bead loading mechanism for automatic loading, a first side detection mechanism for detecting the appearance of the beads, a second detection mechanism for detecting the appearance of the beads, a third detection mechanism for detecting the diameter and inner diameter of the beads, and a unloading mechanism for classifying and collecting the beads after the detection; the second detection mechanism includes a second side detection mechanism and a third side detection mechanism symmetrically arranged on both sides of the third detection mechanism.

[0003] Among them, the technical solution is to use a turntable mechanism for material transportation, and a material sorting component is provided at the connection between the feeding mechanism and the turntable. In order to enable the material to be accurately located on the threshold detection path, two internal and external cooperating material sorting components are often provided, and an internal and external guide limit structure of the material is formed between the two material sorting components. However, in actual use, it is easy for the material to have a large collision and fall to the outside of the turntable when it hits the first material sorting component located on the inner side due to the different postures of the materials output by the straight vibration track of the feeding mechanism. This is particularly obvious when the material is in the form of thin strips. Since the above technical solution does not configure a corresponding recovery structure in the material sorting component area, the material falls in a disorderly manner, making subsequent collection difficult, and may even be stuck in the transmission structure of the equipment, causing equipment failure. Utility Model Content

[0004] The utility model provides a visual inspection and screening machine, which is conducive to solving the problem that some existing visual screening machines are not equipped with a material recovery mechanism in the material sorting area at the turntable feeding end, and the materials that do not meet the material feeding conditions generated during material sorting are easy to fall in a disorderly manner, which is difficult to collect and may even cause equipment failure.

[0005] The utility model is achieved in this way:

[0006] A visual inspection and screening machine comprises a first frame and a second frame arranged adjacent to each other, the first frame being provided with a turntable mechanism, a visual inspection mechanism and a unloading mechanism being provided in sequence on a rotating feeding path on the top of the turntable mechanism, the turntable mechanism being close to the first frame on a side thereof as a material input end; the second frame being provided with a loading mechanism, the output end of the loading mechanism being a straight vibration track extending to the material input end, the first frame being provided with a material sorting mechanism at the material input end, the material sorting mechanism comprising a first material sorting piece and a second material sorting piece which are staggered and distributed frontward and rearward relative to a material feeding direction, the first material sorting piece being located at a side of the second material sorting piece close to the material input end, the first material sorting piece and the second material sorting piece being provided with material blocking structures located at inner and outer sides of the material feeding path respectively, the first material sorting piece and the second material sorting piece respectively constituting inner and outer guide limiting structures after the material enters the turntable mechanism; the first frame being provided with a return hopper at an outer side of the first material sorting piece, the return hopper being provided with an upper opening adjacent to an outer edge of the turntable mechanism, the transverse profile of the upper opening covering an area from the material input end to the second material sorting piece.

[0007] Based on the above technical solution, the first frame and the second frame are provided with height-adjustable feet at the bottom.

[0008] On the basis of the above technical solution, the feeding mechanism includes a silo, a vibration plate and a direct vibrator which are connected in sequence, and the direct vibrator track is the output end of the direct vibrator.

[0009] Based on the above technical solution, the return hopper is a conical hopper structure that is wide at the top and narrow at the bottom, and has openings at the top and bottom, respectively, and the return hopper is connected and fixed to the first frame through a support frame.

[0010] On the basis of the above technical solution, the upper opening of the return hopper is an arc-shaped slot structure whose cross-sectional profile is adapted to the outer contour of the turntable of the turntable mechanism.

[0011] On the basis of the above technical solution, a detachable storage box is provided on the first frame below the lower opening for storing the materials collected and dropped by the return hopper.

[0012] On the basis of the above technical solution, a base is provided between the storage box and the first frame, the base is connected and fixed to the first frame, and the storage box is detachably placed on the base.

[0013] On the basis of the above technical solution, the base has a "cross"-shaped bracket, a side baffle is provided at the outer end of the bracket away from the first frame, and an extension plate is provided at the inner end of the bracket close to the first frame. The extension plate is a folded plate structure, and a plurality of mounting holes for passing bolts to connect the first frame are provided on the extension plate.

[0014] On the basis of the above technical solution, the first material sorting piece and the second material sorting piece are provided with hierarchical transverse and longitudinal position adjustment structures, the working ends of the first material sorting piece and the second material sorting piece are provided with horizontal extension plates, and the material blocking structure is a blocking block connected to the bottom of the extension plate.

[0015] On the basis of the above technical solution, the stopper is connected to the extension plate by bolts, and an angle adjustment structure is provided at the connection, which can make the stopper swing laterally around the vertical axis to adjust the installation angle of the stopper.

[0016] Compared with the prior art, the utility model has at least the following advantages:

[0017] The utility model arranges a first material sorting piece and a second material sorting piece which are staggered inside and outside and front and back at the material input end of the turntable mechanism to form an inner and outer double-sided guiding and limiting structure, which can accurately position the material on the material feeding path after the material enters the turntable mechanism. In order to solve the problem that materials that do not meet the material feeding conditions are easy to fall in a disorderly manner during material sorting in some existing visual screening machines, which is difficult to collect and even causes equipment failure, the technical solution is configured with a return hopper in the material sorting area. When the material follows the rotation of the turntable and collides with the first material sorting piece located at the inner end of the material feeding path to move outward significantly, the material can fall from the outer edge of the turntable into the return hopper for centralized and automatic collection, thereby avoiding the phenomenon of disorder after the material falls. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a visual inspection and screening machine in one embodiment;

[0020] Figure 2 for Figure 1 A top view of the internal structure;

[0021] Figure 3 for Figure 2 Partial schematic diagram of the installation position of the central material sorting mechanism and the return hopper;

[0022] Figure 4 for Figure 3 Schematic diagram of the positional relationship between the middle return hopper and the storage box;

[0023] Figure 5 for Figure 4Schematic diagram of the structure of the middle bracket;

[0024] Figure 6 for Figure 3 A schematic diagram of the structure of the first material sorting part;

[0025] Figure 7 for Figure 6 Schematic diagram of the structure of the middle stopper.

[0026] Markings in the figure: 1. First frame; 11. Turntable mechanism; 12. Visual inspection mechanism; 13. Unloading mechanism; 2. Second frame; 21. Bin; 22. Vibrating plate; 23. Straight vibrator; 3. Material sorting mechanism; 31. First material sorting part; 311. Base; 312. First slider; 313. Bracket; 314. Second slider; 315. Extension plate; 316. Stopper; 317. Arc hole; 318. Connecting hole; 32. Second material sorting part; 4. Return hopper; 41. Upper opening; 42. Lower opening; 5. Storage box; 51. Base; 511. Bracket; 512. Side baffle; 513. Extension plate; 514. Mounting hole. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0028] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to an element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0030] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Combination Figure 1-7 This embodiment discloses a visual inspection and screening machine, which is used to solve the problem that some existing visual screening machines are not equipped with a material recovery mechanism in the material sorting area at the turntable feeding end, and the materials that do not meet the material feeding conditions generated during material sorting are easy to fall in a disorderly manner, making it difficult to collect and even causing equipment failure.

[0032] Specifically, Figure 1 As shown, the visual inspection and screening machine includes a first frame 1 and a second frame 2 which are adjacently arranged. The first frame 1 and the second frame 2 are box-type frame structures, and height-adjustable feet are provided at the bottom to facilitate flexible correction and adjustment of the assembly height and levelness of the frame to improve the connection and matching accuracy of the components between the two frames. The first frame 1 and the second frame 2 mainly play a bearing and supporting role. In order to improve the working environment from being affected by external environmental factors, a cover is provided on the top of the first frame 1 to protect the core visual inspection mechanism 12 inside.

[0033] Furthermore, a turntable mechanism 11 is provided on the first frame 1, and a visual inspection mechanism 12 and a feeding mechanism 13 are provided in sequence on the rotating feeding path on the top of the turntable mechanism 11, which is the prior art. Its specific structure and working principle can refer to the relevant content in Chinese patent CN218655598U, which will not be repeated here. Those skilled in the art can select and implement from the prior art according to the actual working conditions.

[0034] The side of the turntable mechanism 11 close to the first frame 1 is a material input end. During the process of the material rotating through the turntable mechanism 11 for nearly one circle, it is guided, positioned, visually inspected and discharged in sequence.

[0035] A feeding mechanism is provided on the second frame 2, and the output end of the feeding mechanism is a straight vibration track extending to the material input end. In this embodiment, the feeding mechanism includes a silo 21, a vibration plate 22 and a straight vibrator 23 connected in sequence, and the straight vibration track is the output end of the straight vibrator 23.

[0036] The first frame 1 is provided with a material sorting mechanism 3 at the material input end, and the material sorting mechanism 3 includes a first material sorting piece 31 and a second material sorting piece 32 which are staggered front and back relative to the material feeding direction, the first material sorting piece 31 is located on the side of the second material sorting piece 32 close to the material input end, the first material sorting piece 31 and the second material sorting piece 32 are respectively provided with material blocking structures located on the inner and outer sides of the material feeding path, and the first material sorting piece 31 and the second material sorting piece 32 respectively constitute the inner and outer guide limiting structures after the material enters the turntable mechanism 11.

[0037] The first material sorting piece 31 and the second material sorting piece 32 are provided with hierarchical transverse and longitudinal position adjustment structures, and the working ends of the first material sorting piece 31 and the second material sorting piece 32 are provided with horizontal extension plates 315, and the material blocking structure is a block 316 connected to the bottom of the extension plate 315. The block 316 and the extension plate 315 are connected by bolts, and an angle adjustment structure is provided at the connection, which can make the block 316 swing horizontally around the vertical axis to adjust the installation angle of the block 316.

[0038] Specifically, the first material processing part 31 and the second material processing part 32 have the same structure. The structure of the first material processing part 31 is described as an example. Figure 6 and 7 As shown, in this embodiment, the first material sorting part 31 includes a base 311, and a first slider 312 is movably connected to the base 311. A horizontal first guide rail is provided between the first slider 312 and the base 51, and the first guide rail is horizontally oriented inward and outward. The first slider 312 can move horizontally inward and outward along the first guide rail. A bracket 313 is connected to the top of the first slider 312, and the bracket 313 is vertically arranged. A second slider 314 is movably connected to the inner end surface of the bracket 313, and a vertical second guide rail is provided between the second slider 314 and the bracket 313. The second slider 314 can move up and down along the second guide rail, and locking bolts are provided on the first slider 312 and the second slider 314. After locking, the installation position of the slider can be fixed, and the second slider An extension plate 315 is connected to the inner end of 314. The extension plate 315 is arranged horizontally, and a vertical through-hole structure is provided at the inner end thereof, including a circular straight hole and an arc-shaped hole 317. Both of them penetrate the extension plate 315 longitudinally, and are connected to a stopper 316 below the extension plate 315 by bolts. The top end face of the stopper 316 is provided with three connecting holes 318 spaced apart on the left and right. The connecting hole 318 located in the middle is aligned and connected with the above-mentioned circular straight hole. After the connection, this position forms a rotation axis in the vertical direction; the connecting hole 318 located on the outside is aligned and connected with the above-mentioned arc-shaped hole 317 according to the installation direction. After the connection, the baffle can be rotated by the movement of the bolts in the arc-shaped hole 317 to realize flexible adjustment of the baffle installation angle.

[0039] In other embodiments, connection holes 318 are provided on both upper and lower end surfaces of the stopper 316, so that the connection method between the stopper 316 and the extension plate 315 is diversified. This method of connecting on both sides can improve the structural utilization rate and service life of the stopper 316. The reason is that in actual work, only a small area near the bottom of the stopper 316 will be involved in the contact with the material. After long-term use, the bottom area will be worn due to the friction of the material, resulting in a continuous increase in the friction coefficient, which will affect the guiding effect of the stopper 316 and the smoothness of the material abutment and sliding. Since both sides can be installed, the stopper 316 can be quickly replaced and reinstalled after one side is worn, and the other side can be used for work.

[0040] Further, combined with Figure 2-4 The first frame 1 is provided with a return hopper 4 outside the first material sorting piece 31, and the return hopper 4 is provided with an upper opening 41 adjacent to the outer edge of the turntable mechanism 11, and the transverse profile of the upper opening 41 covers the area from the material input end to the second material sorting piece 32.

[0041] The return hopper 4 is a conical hopper structure that is wide at the top and narrow at the bottom, and has opening structures at the top and bottom, namely an upper opening 41 and a lower opening 42. The return hopper 4 is connected and fixed to the first frame 1 through a support frame, and there is a clearance fit between the return hopper 4 and the turntable mechanism 11, which will not interfere with the rotation of the turntable mechanism 11.

[0042] The upper opening 41 of the return hopper 4 is an arc-shaped slot structure whose cross-sectional profile is adapted to the outer contour of the turntable of the turntable mechanism 11, which can increase the material collection area while minimizing the structural space of the return hopper 4 itself, thereby improving the utilization rate.

[0043] Furthermore, the first frame 1 is provided with a detachable storage box 5 below the lower opening 42 for storing the materials collected and dropped by the return hopper 4, thereby facilitating the operators to pour the recovered materials back into the silo 21 for reuse.

[0044] A base 51 is provided between the storage box 5 and the first frame 1. The base 51 is connected and fixed to the first frame 1. The storage box 5 can be detachably placed on the base 51. Figure 5The base 51 has a "cross" shaped bracket 511. The outer end of the bracket 511 away from the first frame 1 is provided with a side baffle 512. The inner end of the bracket 511 close to the first frame 1 is provided with an extension plate 513. The extension plate 513 is a folded plate structure. The extension plate 513 is provided with 4 mounting holes 514 for passing bolts to connect the first frame 1. It should be noted that in this embodiment, the storage box 5 is staggered with the lower opening 42. The storage box 5 is installed on the side of the first frame 1 using the base 51, which is conducive to providing space utilization. In actual use, the storage box 5 can be directly placed directly below the lower opening 42 for collecting materials, and the base 51 is used to place another storage box 5, one for backup and one for use. In other embodiments, the bottom of the lower opening 42 can also be connected to a material guide slide to directly conduct the recovered materials to the storage box 5 on the base 51.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A visual inspection screening machine, comprising a first frame (1) and a second frame (2) arranged adjacent to each other, wherein the first frame (1) is provided with a turntable mechanism (11), and a visual inspection mechanism (12) and a feeding mechanism (13) are sequentially provided on a rotating feeding path on the top of the turntable mechanism (11), and the side of the turntable mechanism (11) close to the first frame (1) is a material input end; the second frame (2) is provided with a feeding mechanism, and the output end of the feeding mechanism is a straight vibration track extending to the material input end, characterized in that: The first frame (1) is provided with a material sorting mechanism (3) at the material input end, the material sorting mechanism (3) comprises a first material sorting piece (31) and a second material sorting piece (32) which are staggered and distributed in the front and rear direction relative to the material feeding direction, the first material sorting piece (31) is located on the side of the second material sorting piece (32) close to the material input end, the first material sorting piece (31) and the second material sorting piece (32) are respectively provided with material blocking structures located on both sides of the material feeding path, the first material sorting piece (31) and the second material sorting piece (32) respectively constitute inner and outer guide limit structures after the material enters the turntable mechanism (11); the first frame (1) is provided with a return hopper (4) at the outer side of the first material sorting piece (31), the return hopper (4) is provided with an upper opening (41) adjacent to the outer edge of the turntable mechanism (11), and the transverse profile of the upper opening (41) covers the area between the material input end and the second material sorting piece (32).

2. A visual inspection and screening machine according to claim 1, characterized in that: The first frame (1) and the second frame (2) are provided with height-adjustable feet at the bottom.

3. A visual inspection and screening machine according to claim 1, characterized in that: The feeding mechanism comprises a material bin (21), a vibration plate (22) and a straight vibrator (23) which are connected in sequence, and the straight vibrator track is the output end of the straight vibrator (23).

4. A visual inspection and screening machine according to claim 1, characterized in that: The return hopper (4) is a conical hopper structure that is wide at the top and narrow at the bottom, and has openings at the top and bottom, namely an upper opening (41) and a lower opening (42). The return hopper (4) is connected and fixed to the first frame (1) via a support frame.

5. A visual inspection and screening machine according to claim 4, characterized in that: The upper opening (41) of the return hopper (4) is an arc-shaped slot structure with a cross-sectional profile adapted to the outer profile of the turntable of the turntable mechanism (11).

6. A visual inspection and screening machine according to claim 5, characterized in that: The first frame (1) is provided with a detachable storage box (5) below the lower opening (42) for storing materials collected and dropped by the return hopper (4).

7. A visual inspection and screening machine according to claim 6, characterized in that: A base (51) is provided between the storage box (5) and the first frame (1); the base (51) is connected and fixed to the first frame (1); and the storage box (5) is detachably placed on the base (51).

8. A visual inspection and screening machine according to claim 7, characterized in that: The base (51) has a "cross"-shaped bracket (511), the outer end of the bracket (511) away from the first frame (1) is provided with a side baffle (512), the inner end of the bracket (511) close to the first frame (1) is provided with an extension plate (513), the extension plate (513) is a folded plate structure, and the extension plate (513) is provided with a plurality of mounting holes (514) for passing bolts to connect to the first frame (1).

9. A visual inspection and screening machine according to claim 1, characterized in that: The first material sorting piece (31) and the second material sorting piece (32) are provided with hierarchical transverse and longitudinal position adjustment structures, and the working ends of the first material sorting piece (31) and the second material sorting piece (32) are provided with horizontal extension plates (315), and the material blocking structure is a blocking block (316) connected to the bottom of the extension plate (315).

10. A visual inspection and screening machine according to claim 9, characterized in that: The stopper (316) and the extension plate (315) are connected by bolts, and an angle adjustment structure is provided at the connection point, wherein the angle adjustment structure can enable the stopper (316) to swing laterally around an axis in the vertical direction, thereby adjusting the installation angle of the stopper (316).

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