Surface foreign matter detection device

Abstract

The utility model discloses a surface foreign matter detection device, and belongs to the technical field of foreign matter detection, the surface foreign matter detection device comprises a detection assembly, the detection assembly comprises a first frame plate, a second frame plate, a guide column, a detection plate and a sensor, and the second frame plate is installed on one side of the first frame plate; the guide column is mounted on the lower side of the first frame plate, and the detection plate is slidably mounted on the guide column; the sensor is installed on the inner side of the first frame plate, and a shielding piece matched with the sensor is installed on the detection plate. When the detection assembly is attached to or moves on the surface of a workpiece or a mold, the foreign matter on the surface enables the detection plate to ascend in the direction of the guide columns, the shielding piece on the upper side of the detection plate correspondingly ascends, the sensor detects shielding changes, and therefore the condition of the foreign matter on the surface is judged and detected.

Description

Technical Field

[0001] The present invention relates to the technical field of foreign matter detection, and in particular to a device for detecting surface foreign matter. Background Art

[0002] After mold injection, workpiece processing, or product completion, foreign matter may remain on the mold, workpiece, or product surface due to a variety of factors, including the presence of material impurities and environmental interference. If these foreign matter are not promptly removed, they can compromise the safe and reliable operation of subsequent workpieces, affect subsequent processing, and reduce product yields. Therefore, surface inspection is necessary, which is currently typically performed manually. To effectively identify foreign matter, it is necessary to develop foreign matter detection methods suitable for mold, workpiece, or product surfaces, replacing manual inspection with automated methods. Summary of the Invention

[0003] In view of the above technical problems existing in the prior art, the present invention provides a device for detecting surface foreign matter, which can effectively detect foreign matter on the surface of a mold, a workpiece or a product.

[0004] The present invention discloses a device for detecting surface foreign matter, including a detection component, wherein the detection component includes a first frame plate, a second frame plate, a guide column, a detection plate and a sensor, wherein the second frame plate is mounted on one side of the first frame plate; the guide column is mounted on the lower side of the first frame plate, and the detection plate is slidably mounted on the guide column; the sensor is mounted on the inner side of the first frame plate, and a shielding member that cooperates with the sensor is mounted on the detection plate.

[0005] Preferably, when the detection plate is located at the lower side of the guide column, the upper end surface of the shielding member is lower than the detection horizontal plane of the sensor;

[0006] When the detection plate is located on the upper side of the guide column, the upper end surface of the shielding member is higher than the detection horizontal plane of the sensor.

[0007] Preferably, two opposing sensors are provided on the inner side of the first frame plate.

[0008] Preferably, a mounting block is provided on the inner side of the second frame plate, and the guide column is installed on the lower side of the mounting block;

[0009] The guide column includes a guide member and a limiting member installed on the lower side of the guide member;

[0010] The detection plate is slidably mounted on the guide member;

[0011] A bracket is installed on the inner side of the second frame plate, and the sensor is installed on the bracket.

[0012] Preferably, a fitting portion that matches the product or the mold is provided on the lower side of the detection plate.

[0013] Preferably, it further comprises a translation assembly, the translation assembly comprises a second linear module, a support rod is provided on one side of the first frame plate, and the support rod is installed on the sliding end of the second linear module.

[0014] Preferably, it further comprises a lifting assembly, wherein the lifting assembly comprises a mounting plate and a first linear module mounted on the mounting plate;

[0015] The second linear module is mounted on a connecting plate, and the connecting plate is mounted on a sliding end of the first linear module.

[0016] Preferably, the detection plate is a flexible member.

[0017] Preferably, the detection plate is a nylon piece.

[0018] Compared with the prior art, the beneficial effect of the present invention is that when the detection component is fitted or moved on the surface of the workpiece or mold, foreign matter on the surface causes the detection plate to rise in the direction of the guide column, and the shielding member on the upper side of the detection plate rises accordingly. The sensor detects the shielding change, thereby judging and detecting the foreign matter situation on the surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a device for detecting surface foreign matter according to the present invention;

[0020] Figure 2 is a side view of the detection device;

[0021] Figure 3 It is a structural diagram of the detection component;

[0022] Figure 4 It is a structural diagram of the detection board;

[0023] Figure 5 It is a structural diagram of the guide.

[0024] Markings in the figure: 1 detection device, 2 lifting assembly, 24 mounting plate, 25 first linear module, 26 connecting plate; 3 translation assembly, 37 second linear module; 4 detection assembly, 41 second frame plate, 42 detection plate, 421 fitting part, 43 mounting block, 44 guide column, 441 guide part, 442 limit part, 45 sensor, 451 shielding part, 46 bracket, 47 first frame plate, 49 support rod; 8 mold. DETAILED DESCRIPTION

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0026] The present invention is described in further detail below with reference to the accompanying drawings:

[0027] A device for detecting foreign matter on a surface 1, such as Figure 1-Figure 5 , including a detection component 4, the detection component 4 includes a first frame plate 47, a second frame plate 41, a guide column 44, a detection plate 42 and a sensor 45, the second frame plate 41 is installed on one side of the first frame plate 47; the guide column 44 is installed on the lower side of the first frame plate 47, and the detection plate 42 is slidably installed on the guide column 44; the sensor 45 is installed on the inner side of the first frame plate 47, and a shielding member 451 that cooperates with the sensor 45 is installed on the detection plate 42.

[0028] When the detection component 4 is attached or moved to the surface of the workpiece or mold, foreign matter on the surface causes the detection plate 42 to rise in the direction of the guide column 44, and the shielding member 451 on the upper side of the detection plate 42 rises accordingly. The sensor 45 detects the shielding change, thereby judging and detecting the foreign matter on the surface.

[0029] Specifically, when the detection plate 42 is located below the guide post 44, the upper end surface of the shielding member 451 is lower than the detection level of the sensor 45. When a foreign object is present, the detection plate moves upward. When the detection plate 42 is located above the guide post 44, the upper end surface of the shielding member 451 is higher than the detection level of the sensor 45. Shielding member 451 blocks sensor 45, and by detecting changes in the value / signal of sensor 45, the presence of a foreign object can be detected. More specifically, if the sensor amplifier displays no change in value, it indicates that there is no foreign object on the mold or product surface; if the value changes, it indicates that there is foreign object on the mold or product surface. The presence of foreign object on the mold surface is converted into a change in the height difference of the detection plate on the mold surface to determine whether there is any foreign object remaining on the mold surface, preventing damage to the mold caused by foreign object closing.

[0030] like Figure 1 、 Figure 2 and Figure 3A corresponding sensor 45 is provided on the inner side of the first frame plate 47 to ensure detection accuracy. A mounting block 43 is provided on the inner side of the second frame plate 41, and the guide column 44 is mounted on the lower side of the mounting block 43. The guide column 44 includes a guide member 441 and a stopper 442 mounted on the lower side of the guide member 441; the detection plate 42 is slidably mounted on the guide member 441. A bracket 46 is installed on the inner side of the second frame plate 41, and the sensor 45 is mounted on the bracket 46.

[0031] like Figure 2 The lower side of the detection plate 42 is provided with a fitting portion 421 that matches the product or mold 8. The detection plate 42 can be made of a flexible member, such as a nylon member. The profiling structure is designed according to the mold surface morphology to fit the mold surface.

[0032] The surface foreign body detection device of the present invention further includes a translation assembly 3, which includes a second linear module 37. A support rod 49 is provided on one side of the first frame plate 47. The support rod 49 is mounted on the sliding end of the second linear module 37. The translation assembly 3 drives the detection assembly 4 and its detection plate 42 to move horizontally.

[0033] The present invention also includes a lifting assembly 2, comprising a mounting plate 24 and a first linear module 25 mounted thereon. A second linear module 37 is mounted on a connecting plate 26, which is mounted on the sliding end of the first linear module 25. The lifting assembly 2 is used to adjust the height of the translation assembly 3, the detection assembly 4, and its detection plate 42. The linear module is driven by a servo motor, which drives a coupling and a ball screw, resulting in reciprocating motion at the drive end. The linear module is conventional technology and can be used with existing commercial products. This invention will not elaborate further on this.

[0034] The utility model has a simple structure, reasonable design, and is easy to use. Through the lifting component 2 and the translation component, the overall lifting and translation movement of the detection component is ensured, the movement stability is maintained, and the detection part is ensured to enter and exit the mold, thereby realizing automated detection. It can well detect whether there are foreign objects on the surface of the object. It prevents the presence of foreign objects from damaging the mold 8 during mold closing, which is beneficial to downstream processing technology and improves product yield.

[0035] The detection plate and sensor arrangement can be adjusted according to the actual surface shape of the mold or product, making it compatible with the detection of different object surfaces.

[0036] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A device for detecting surface foreign matter, characterized in that: The invention comprises a detection assembly (4), wherein the detection assembly (4) comprises a first frame plate (47), a second frame plate (41), a guide column (44), a detection plate (42) and a sensor (45), The second frame plate (41) is installed on one side of the first frame plate (47); The guide column (44) is mounted on the lower side of the first frame plate (47), and the detection plate (42) is slidably mounted on the guide column (44); The sensor (45) is installed on the inner side of the first frame plate (47), and a shielding member (451) that matches the sensor (45) is installed on the detection plate (42).

2. The detection device according to claim 1, characterized in that When the detection plate (42) is located at the lower side of the guide column (44), the upper end surface of the shielding member (451) is lower than the detection horizontal plane of the sensor (45); When the detection plate (42) is located on the upper side of the guide column (44), the upper end surface of the shielding member (451) is higher than the detection horizontal plane of the sensor (45).

3. The detection device according to claim 1, characterized in that Two opposing sensors (45) are provided on the inner side of the first frame plate (47).

4. The detection device according to claim 1, characterized in that A mounting block (43) is provided on the inner side of the second frame plate (41), and the guide column (44) is installed on the lower side of the mounting block (43); The guide column (44) includes a guide member (441) and a limiting member (442) installed on the lower side of the guide member (441); The detection plate (42) is slidably mounted on the guide member (441); A bracket (46) is installed on the inner side of the second frame plate (41), and the sensor (45) is installed on the bracket (46).

5. The detection device according to claim 1, characterized in that The lower side of the detection plate (42) is provided with a fitting portion (421) that matches the product or the mold (8).

6. The detection device according to claim 1, characterized in that The invention also includes a translation assembly (3), wherein the translation assembly (3) includes a second linear module (37), a support rod (49) is provided on one side of the first frame plate (47), and the support rod (49) is installed on the sliding end of the second linear module (37).

7. The detection device according to claim 6, characterized in that It also includes a lifting assembly (2), the lifting assembly (2) including a mounting plate (24) and a first linear module (25) mounted on the mounting plate (24); The second linear module (37) is mounted on a connecting plate (26), and the connecting plate (26) is mounted on the sliding end of the first linear module (25).

8. The detection device according to claim 1, characterized in that The detection plate (42) is a flexible member.

9. The detection device according to claim 8, characterized in that The detection plate (42) is a nylon piece.

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