Defect detection device for injection molded part

Abstract

The utility model discloses an injection molding part defect detection device which comprises a rubber conveying belt and a detection table, a vertically upward second motor is arranged in the center of the bottom of the detection table, and the output end of the second motor penetrates through the center of the top of the detection table and is fixedly provided with a rotating disc and a precise weighing table through couplings. The injection molding part is conveyed through the rubber conveying belt, the conveyed injection molding part falls to the top of the precision weighing platform, the injection molding part is weighed through the precision weighing platform, and whether the interior of the injection molding part is hollow or not is judged according to the difference between the weight of the injection molding part and the standard weight. And after the weight of the injection molding part reaches the standard, a second motor rotates to drive a precise weighing platform on a rotating disc to rapidly rotate by 90 degrees, the injection molding part is thrown into a collecting box through centrifugal force, and if the injection molding part does not reach the standard, the second motor drives the rotating disc to reversely rotate by 90 degrees, and the injection molding part which does not reach the standard is thrown into another collecting box.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molded parts detection, in particular to an injection molded parts defect detection device. Background Art

[0002] After injection molded parts are produced, it is usually necessary to inspect the surface of the injection molded parts for defects to ensure the precise fit between the injection molded parts and the assembly. In the existing technology, it is usually necessary to use an industrial camera to photograph the surface of the injection molded parts, and then upload the surface information of the injection molded parts to a computer. The computer then compares the image information to achieve defect detection on the surface of the injection molded parts.

[0003] However, injection molded parts not only have defects on the surface, but also have defects such as hollowing inside the injection molded parts. The hollowing defects inside the injection molded parts will also affect the strength of the injection molded parts, making the injection molded parts substandard in quality. In order to detect whether the injection molded parts have hollowing, we propose an injection molded parts defect detection device. Utility Model Content

[0004] The purpose of the present invention is to provide an injection molded part defect detection device to address the deficiencies of the prior art and to solve the problems raised in the background art.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A device for detecting defects in injection molded parts, comprising two positioning guard plates, wherein the outer walls of one side corresponding to the two positioning guard plates are movably connected to rollers distributed at equal distances through openings using bearings, the outer walls of the rollers are sleeved with a rubber conveyor belt, the bottom outer walls of the two positioning guard plates are fixed with a support plate, the outer walls of one end of the two support plates are fixed with a detection platform, the outer walls of both sides of the detection platform are fixed with a fixed sleeve, the inner wall of the fixed sleeve is sleeved with a collection box, a second vertically upward motor is provided at the bottom center position of the detection platform, the output end of the second motor passes through the top center position of the detection platform and is fixed with a rotating disk through a coupling, the outer wall of one side of the rotating disk is fixed with a rotating plate through a bracket, the top outer wall of the rotating plate is fixed with a precision scale, and the top outer wall of the precision scale is fixed with a U-shaped limit plate.

[0007] As a preferred solution of the injection molded part defect detection device, a first motor fixing cover is fixedly provided on the outer wall of one side of the positioning guard plate, a first motor is fixedly provided on the inner wall of the first motor fixing cover, and the output shaft of the first motor is fixedly connected to the outer wall of one end of the roller, so that the roller can be driven to rotate by the first motor.

[0008] As a preferred solution for the injection molded part defect detection device, a semi-arc material baffle is fixedly provided on the top outer wall of the two collection boxes, and a lifting port is opened on the outer wall of the semi-arc material baffle, which makes it easy to pick up the collection box through the lifting port, and to receive the thrown injection molded parts through the semi-arc material baffle.

[0009] As a preferred solution of the injection molded part defect detection device, a second motor fixing cover is fixed to the bottom outer wall of the detection platform, and the second motor is fixed to the inner wall of the second motor fixing cover. The second motor fixing cover facilitates the fixing of the second motor to the bottom of the detection platform.

[0010] As a preferred solution for the injection molded part defect detection device, a positioning bracket is fixedly provided on the top outer wall of the two positioning guard plates, and an industrial camera pointing vertically downward is fixedly provided through an opening at the central position of the positioning bracket. The industrial camera can photograph the injection molded parts passing on the top of the rubber conveyor belt, and the photographed images can be transmitted to a computer.

[0011] As a preferred solution of the injection molded part defect detection device, the precision weighing platform is located at one end of the bottom of the rubber conveyor belt.

[0012] Beneficial effects of the utility model:

[0013] The utility model conveys the injection molded parts by a rubber conveyor belt, and the conveyed injection molded parts fall to the top of the precision weighing platform, and the injection molded parts are weighed by the precision weighing platform. If the weight of the injection molded parts can reach the standard weight, it means that there is no hollowing inside the injection molded parts. After the weight of the injection molded parts reaches the standard, the second motor is used to rotate the rotating disk 90 degrees quickly, and the rotating disk drives the precision weighing platform to rotate. The precision weighing platform cooperates with the U-shaped limiting plate to throw the injection molded parts into a collection box by centrifugal force. If the weight of the injection molded parts fails to reach the standard weight, it means that there is hollowing inside the injection molded parts, and the injection molded parts do not meet the standards. The second motor drives the rotating disk to rotate 90 degrees in the opposite direction, and throws the substandard injection molded parts into another collection box, thereby realizing the detection of internal defects of the injection molded parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0015] Figure 1 It is a three-dimensional structural diagram of the injection molded part defect detection device described in the present invention.

[0016] Figure 2It is a schematic cross-sectional structural diagram of the motor fixing cover described in the present utility model.

[0017] Figure 3 It is a structural schematic diagram of the detection platform described in the utility model.

[0018] Figure 4 It is a structural schematic diagram of the electric motor described in the utility model.

[0019] In the picture:

[0020] 1. Positioning guard plate; 2. Roller; 3. Rubber conveyor belt; 4. First motor fixing cover; 5. First motor; 6. Support plate; 7. Positioning bracket; 8. Industrial camera; 9. Inspection table; 10. Fixed sleeve; 11. Collection box; 12. Semi-arc material baffle; 13. Lifting mouth; 14. Second motor fixing cover; 15. Second motor; 16. Rotating disk; 17. Rotating plate; 18. Precision weighing platform; 19. U-shaped limit plate. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0022] Among them, the drawings are only used for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0023] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0024] In the description of this utility model, unless otherwise expressly specified or limited, when the term "connection" or the like appears to indicate a connection relationship between components, such term should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be internal communication between two components or an interaction relationship between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0025] Example 1

[0026] like Figures 1 to 4 As shown, this embodiment provides an injection molded part defect detection device, comprising two positioning guard plates 1, the outer walls of the corresponding sides of the two positioning guard plates 1 are movably connected with equally distributed rollers 2 through openings using bearings, the outer walls of the rollers 2 are sleeved with a rubber conveyor belt 3, the bottom outer walls of the two positioning guard plates 1 are fixed with a support plate 6, the outer walls of one end of the two support plates 6 are fixed with a detection platform 9, the outer walls of both sides of the detection platform 9 are fixed with a fixed sleeve 10, the inner wall of the fixed sleeve 10 is sleeved with a collection box 11, a second vertically upward motor 15 is provided at the bottom center of the detection platform 9, the output end of the second motor 15 passes through the top center of the detection platform 9 and is fixed with a rotating disk 16 through a coupling, the outer wall of one side of the rotating disk 16 is fixed with a rotating plate 17 through a bracket, the top outer wall of the rotating plate 17 is fixed with a precision scale 18, and the top outer wall of the precision scale 18 is fixed with a U-shaped limit plate 19.

[0027] Example 2

[0028] Based on the first embodiment, a first motor fixing cover 4 is fixedly provided on the outer wall of one side of the positioning guard plate 1, and a first motor 5 is fixedly provided on the inner wall of the first motor fixing cover 4. The output shaft of the first motor 5 is fixedly connected to the outer wall of one end of the roller 2, and the roller 2 is driven to rotate by the first motor 5. A semi-arc baffle plate 12 is fixedly provided on the top outer wall of the two collecting boxes 11, and a lifting port 13 is provided on the outer wall of the semi-arc baffle plate 12. The lifting port 13 is used to pick up the collecting box 11, and the semi-arc baffle plate 12 is used to receive the thrown injection molded parts.

[0029] Example 3

[0030] Based on the first embodiment, a second motor fixing cover 14 is fixed to the bottom outer wall of the inspection platform 9, and the second motor 15 is fixed to the inner wall of the second motor fixing cover 14. The second motor fixing cover 14 facilitates the fixing of the second motor 15 to the bottom of the inspection platform 9. A positioning bracket 7 is fixed to the top outer wall of the two positioning guard plates 1. An industrial camera 8 pointing vertically downward is fixed to the central position of the positioning bracket 7 through an opening. The industrial camera 8 can be used to photograph the injection molded parts passing through the top of the rubber conveyor belt 3, and the photographed images can be transmitted to the computer. The precision weighing platform 18 is located at the bottom end of the rubber conveyor belt 3.

[0031] The working principle and use process of this utility model:

[0032] Refer to the instruction manual Figure 1-4 When the utility model is used, the first motor 5 is used to drive the roller 2 to rotate, and the roller 2 drives the rubber conveyor belt 3 to start conveying, and then the injection molded parts to be inspected are placed on the top of the rubber conveyor belt 3 for transportation. The injection molded parts pass through the top of the rubber conveyor belt 3 and the industrial camera 8 shoots the picture and transmits it to the computer to observe whether there are defects on the surface of the injection molded parts. The injection molded parts that have passed the surface defect inspection fall through the rubber conveyor belt 3 to the top of the precision weighing platform 18. The U-shaped limit plate 19 provided on the top of the precision weighing platform 18 can prevent the injection molded parts from falling. The injection molded parts are weighed by the precision weighing platform 18. If the weight of the injection molded parts can reach the standard weight , it means that there is no hollowing inside the injection molded part. After the weight of the injection molded part meets the standard, the second motor 15 rotates and drives the rotating disk 16 to rotate quickly 90°. The rotating disk 16 drives the precision weighing platform 18 to rotate. The precision weighing platform 18 cooperates with the U-shaped limit plate 19 to throw the injection molded part into the collection box 11 through centrifugal force. If the weight of the injection molded part fails to reach the standard weight, it means that there is hollowing inside the injection molded part and the injection molded part does not meet the standard. The second motor 15 drives the rotating disk 16 to rotate 90° in the opposite direction and throws the substandard injection molded part into another collection box 11, thereby realizing the detection of internal defects of the injection molded part and completing the screening of the injection molded parts at the same time, with good use effect.

[0033] It should be noted that the above-described specific embodiments are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that various modifications, equivalent substitutions, and variations may be made to the present invention. However, as long as these modifications do not depart from the spirit of the present invention, they are within the scope of protection of the present invention. Furthermore, certain terms used in the specification and claims of this application are not intended to be limiting but are provided for ease of description only.

Claims

1. A device for detecting defects in injection molded parts, characterized in that: The invention comprises two positioning guard plates (1), the outer walls of the corresponding sides of the two positioning guard plates (1) are movably connected to rollers (2) distributed at equal distances through openings using bearings, the outer walls of the rollers (2) are sleeved with a rubber conveyor belt (3), the bottom outer walls of the two positioning guard plates (1) are fixed with a support plate (6), the outer walls of one end of the two support plates (6) are fixed with a detection platform (9), the outer walls of both sides of the detection platform (9) are fixed with a fixed sleeve (10), the inner wall of the fixed sleeve (10) is sleeved with a A collecting box (11) is provided at the bottom center of the detection platform (9) with a second motor (15) pointing vertically upward, the output end of the second motor (15) passes through the top center of the detection platform (9) and is fixed with a rotating disk (16) through a coupling, a rotating plate (17) is fixed on one side outer wall of the rotating disk (16) through a bracket, a precision weighing platform (18) is fixed on the top outer wall of the rotating plate (17), and a U-shaped limiting plate (19) is fixed on the top outer wall of the precision weighing platform (18).

2. The injection molded part defect detection device according to claim 1, characterized in that: A first motor fixing cover (4) is fixedly provided on an outer wall of one side of the positioning guard plate (1), a first motor (5) is fixedly provided on an inner wall of the first motor fixing cover (4), and an output shaft of the first motor (5) is fixedly connected to an outer wall of one end of the roller (2).

3. The injection molded part defect detection device according to claim 1, characterized in that: A semi-arc-shaped baffle plate (12) is fixedly provided on the top outer wall of the two collecting boxes (11), and a lifting port (13) is opened on the outer wall of the semi-arc-shaped baffle plate (12).

4. The injection molded part defect detection device according to claim 1, characterized in that: A second motor fixing cover (14) is fixedly provided on the bottom outer wall of the detection platform (9), and the second motor (15) is fixed to the inner wall of the second motor fixing cover (14).

5. The injection molded part defect detection device according to claim 1, characterized in that: A positioning bracket (7) is fixedly provided on the top outer walls of the two positioning guard plates (1), and an industrial camera (8) pointing vertically downward is fixedly provided at the center of the positioning bracket (7) through an opening.

6. The injection molded part defect detection device according to claim 1, characterized in that: The precision weighing platform (18) is located at one end of the bottom of the rubber conveyor belt (3).

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