A device and system for detecting missing plastic in an injection molded part

Abstract

The utility model discloses an injection part glue detection device and detection system relates to visual inspection technical field. The utility model discloses an injection part glue detection device, including frame and detection component, frame is used to with installation department connection, and detection component includes multiple groups, and makes detection component can detect multiple injection parts simultaneously, and multiple detection components can be adjusted and install on the frame, and make the detection range of detection component can cover injection part. The utility model discloses an injection part glue detection device, not only can detect multiple injection parts simultaneously, still can improve the detection precision of each detection component through adjusting the position of each detection component.

Description

Technical Field

[0001] This utility model relates to the field of visual inspection technology, and in particular to a device and system for detecting missing glue in injection molded parts. Background Technology

[0002] Injection molding is a common processing method for plastic products. It involves injecting molten plastic into a mold cavity, which then cools and solidifies to obtain a product of the desired shape. However, in actual production, injection molded parts often exhibit defects such as incomplete filling, resulting in missing material, voids, or incomplete outlines. Detecting the presence of incomplete filling defects in injection molded products is a crucial step in ensuring product quality.

[0003] Existing visual inspection solutions mostly employ cameras combined with image processing algorithms to photograph injection molded parts and then compare and analyze the images to determine if there are any defects such as missing glue. Inspecting each injection molded part individually is inefficient and cannot meet production demands. Therefore, providing a device for detecting missing glue in injection molded parts that can improve inspection efficiency has become a pressing technical problem for those skilled in the art. Utility Model Content

[0004] This utility model discloses a device and system for detecting insufficient glue in injection molded parts, in order to solve the technical problem that the detection efficiency of insufficient glue detection devices for injection molded parts in related technologies is low.

[0005] To solve the above problems, the present invention adopts the following technical solution: The first aspect of this utility model discloses a device for detecting insufficient glue in injection molded parts.

[0006] The present invention discloses a device for detecting insufficient glue in injection molded parts, comprising a frame and detection components. The frame is used to connect to a mounting part. The detection components include multiple sets, enabling the detection components to simultaneously detect multiple injection molded parts. The multiple sets of detection components are adjustablely mounted on the frame, and the detection range of the detection components can cover the injection molded parts.

[0007] According to an optional embodiment, multiple sets of the detection components are disposed on opposite sides of the frame, and the detection components on both sides of the frame are disposed opposite to each other; and / or, multiple sets of the detection components are disposed on one side of the frame, and the detection components on the same side of the frame are staggered in the height direction.

[0008] According to an alternative embodiment, the injection molding part missing glue detection device further includes a light shield that is adjustablely mounted on the frame and is used to separate multiple sets of the detection components.

[0009] According to one alternative embodiment, the detection assembly includes a frame, an imaging device, and a lighting device, wherein the frame is used to mount the imaging device and the lighting device, and the frame is adjustablely mounted on the rack.

[0010] According to an optional embodiment, the frame and / or the rack is provided with an adjustment mechanism for adjusting the position of the frame in the x, y and / or z directions, and the adjustment mechanism also allows the frame to be rotatably mounted on the rack.

[0011] According to an optional embodiment, the adjustment mechanism includes a first slide groove disposed on the frame, and the first slide groove is located in the x direction, y direction and / or z direction; the frame includes a first frame, and the adjustment mechanism further includes a first mounting hole disposed on the first frame, the first mounting hole being connected to the first slide groove via a first connector.

[0012] According to an optional embodiment, the adjustment mechanism further includes a second slide groove disposed on the first frame, the second slide groove being connected to the first slide groove via a second connector, and the second slide groove being an arc-shaped groove.

[0013] According to an optional embodiment, the frame further includes a second frame for mounting the shooting equipment, and the adjustment mechanism further includes a third slide groove and a plurality of spaced second mounting holes, one of the third slide groove and the second mounting holes being disposed on the first frame and the other being disposed on the second frame, and the third slide groove and the second mounting holes being connected by a third connector.

[0014] According to an optional embodiment, the frame further includes a third frame for mounting the lighting equipment, and the adjustment mechanism further includes a fourth slide groove and a plurality of spaced third mounting holes, one of the fourth slide groove and the third mounting holes being located on the first frame and the other being located on the third frame, and the fourth slide groove and the third mounting holes being connected by a fourth connector.

[0015] The second aspect of this utility model discloses a system for detecting insufficient glue in injection molded parts.

[0016] The injection molding part missing glue detection system of this utility model includes the injection molding part missing glue detection device described in any one of the technical solutions of this utility model.

[0017] The technical solution adopted in this utility model can achieve the following beneficial effects: Firstly, the injection molding part missing glue detection device of this utility model includes multiple sets of detection components, thereby enabling the injection molding part missing glue detection device of this utility model to detect multiple injection molding parts simultaneously. Compared with the existing technology of detecting injection molding parts one by one, it can improve detection efficiency and meet production needs.

[0018] Secondly, in this utility model, the injection molding part missing glue detection device has detection components that are adjustablely mounted on the frame. By adjusting the position of each detection component, its detection range can be adjusted to avoid problems such as inaccurate detection area positioning, inaccurate detection angle, or light source interference, thereby improving the detection accuracy of each detection component. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the injection molding part missing glue detection device according to the first embodiment of this application; Figure 2 yes Figure 1 Enlarged view of section A; Figure 3 This is a schematic diagram of the injection molding part missing glue detection device according to the second embodiment of this application; Figure 4 This is a schematic diagram of the detection component in an embodiment of this application; Figure 5 This is a schematic diagram of the first frame according to an embodiment of this application; Figure 6 This is a schematic diagram of the second frame according to an embodiment of this application; Figure 7 This is a schematic diagram of the third frame in an embodiment of this application.

[0021] In the diagram: 110, frame; 111, first mounting slot; 112, second mounting slot; 120, detection component; 121, frame; 1211, first frame; 1212, second frame; 1213, third frame; 1214, pad; 1215, positioning block; 122, imaging equipment; 123, lighting equipment; 130, light shield; 141, first slide rail; 142, first mounting hole; 143, second slide rail; 144, third slide rail; 145, second mounting hole; 146, fourth slide rail; 147, third mounting hole. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0024] Existing visual inspection systems for missing injection molding parts consist of a single inspection component, which can only inspect one injection molded part at a time, resulting in low efficiency and difficulty in meeting production demands. Therefore, this application provides a device for detecting missing injection molding parts, comprising multiple inspection components, enabling simultaneous inspection of multiple injection molded parts.

[0025] Furthermore, the inventors discovered that when multiple detection components perform detection simultaneously, it is necessary to ensure that the detection paths of the multiple cameras do not overlap, that each detection component is aligned with the area to be inspected of the component, and that interference between light sources is avoided. Installing multiple detection components within a limited space makes it difficult to meet these requirements. Therefore, in actual testing, problems such as inaccurate detection area positioning, inaccurate detection angles, and light source interference often occur, leading to low reliability of the test results. To address this, the multiple detection components of this application are adjustablely mounted on a frame, allowing for adjustment of the position of each component to improve detection accuracy.

[0026] The following is in conjunction with the appendix Figures 1 to 7 The present application provides a detailed description of the injection molding part missing glue detection device and detection system through specific embodiments and application scenarios.

[0027] The injection molding part missing glue detection device of this embodiment includes a frame 110, such as Figure 1As shown. The frame 110 is used to connect to the mounting part. For example, the mounting part is a robotic arm. A robotic hand is also mounted on the robotic arm, which is used to grasp the injection molded part to be inspected. The frame 110 and the robotic arm are connected by snap-fit ​​and / or bolt fixing, etc. A first mounting groove 111 is provided on the side of the frame 110, such as... Figure 1 As shown. The mounting height of the frame 110 can be adjusted by adjusting the connection position between the robotic arm and the first mounting slot 111. Alternatively, multiple mounting holes can be provided on the side of the frame 110 to adjust the mounting height as well.

[0028] The injection molding part missing glue detection device of this embodiment also includes a detection component 120, which is mounted on the frame 110, such as Figure 1 As shown. The detection component 120 is used to detect the missing glue state of the injection molded part. More specifically, the detection component 120 is used to perform photographic inspection of the injection molded part. For example, a robot arm picks up the injection molded part after injection molding from the injection molding station, and then moves the injection molded part to the detection component 120 for photographic inspection.

[0029] In some embodiments, the detection components 120 are in multiple groups, such as Figure 1 As shown. For example, the detection components 120 are arranged in 2 to 10 groups, allowing simultaneous detection of insufficient glue on 2 to 10 injection molded parts. For instance, the detection components 120 may be arranged in 2, 3, 4, 5, 6, 7, 8, 9, or 10 groups. However, this is not a limitation; the number of groups of detection components 120 may also be different. For example, each detection component 120 has the same structure. Compared to the prior art method of detecting injection molded parts one by one, the injection molded part insufficient glue detection device of this embodiment can simultaneously detect multiple injection molded parts, improving detection efficiency to meet production needs.

[0030] In some embodiments, multiple sets of detection components 120 are adjustablely mounted on the frame 110, enabling the detection range of the detection components 120 to cover the injection molded part. For example, a system is established as follows: Figure 1 The coordinate system shown allows for adjustment of the installation position of the detection component 120 in the x, y, and / or z directions. The x, y, and z directions described subsequently are also based on... Figure 1 The coordinate system shown is not limited to this. Multiple detection components 120 can also rotate to adapt to injection molded parts of different sizes, different placement postures, or different detection areas.

[0031] In this embodiment of the injection molding part missing glue detection device, the detection component 120 is adjustablely mounted on the frame 110. By adjusting the position of each detection component 120, its detection range can be adjusted to avoid problems such as inaccurate detection area positioning, inaccurate detection angle or light source interference, thereby improving the detection accuracy of each detection component 120.

[0032] In some embodiments, multiple sets of detection components 120 are disposed on opposite sides of the rack 110, and the detection components 120 located on both sides of the rack 110 are arranged opposite to each other. For example... Figure 1 As shown, two sets of detection components 120 are respectively arranged on opposite sides of the frame 110. The detection components 120 on both sides of the frame 110 are arranged opposite each other, so that the middle area of ​​the frame 110 forms a detection station. In this arrangement, the detection components 120 are reasonably laid out, and a large detection station can be formed between the oppositely arranged detection components 120.

[0033] In some embodiments, multiple sets of detection components 120 are disposed on one side of the rack 110, and the detection components 120 located on the same side of the rack 110 are staggered in the height direction. For example... Figure 3 As shown, detection components 120 are set at different heights on the same side of the frame 110. This arrangement can also form a large detection station in front of the detection components 120.

[0034] Not limited to this, the multiple detection components 120 can also adopt other arrangement methods.

[0035] In some embodiments, the injection molding part missing glue detection device further includes a light shield 130, which is used to separate multiple sets of detection components 120. For example... Figure 1 As shown, the light-shielding plate 130 is a baffle used to separate the oppositely arranged detection components 120; or the light-shielding plate 130 is used to separate the vertically distributed detection components 120. Not limited to this, the light-shielding plate 130 can also be multiple intersecting baffles used to separate the various detection components 120, so that each detection component 120 has an independent detection station. The injection molding part missing glue detection device of this embodiment also includes the light-shielding plate 130, which can reduce the light source interference of each detection component 120, thereby further improving the reliability of the detection by each detection component 120.

[0036] In some embodiments, the light-shielding plate 130 is adjustablely mounted on the frame 110. For example, the frame 110 is provided with a second mounting groove 112, and the light-shielding plate 130 is slidably mounted within the second mounting groove 112, such as... Figure 1 As shown. By sliding the light shield 130, the size of the detection station in front of the detection assembly 120 can be adjusted so that the detection device can be used to detect injection molded parts of different sizes, thus having a wide range of applications.

[0037] In some embodiments, the detection component 120 includes a frame 121, an imaging device 122, and a lighting device 123, wherein the frame 121 is used to mount the imaging device 122 and the lighting device 123, such as... Figure 4As shown. For example, the shooting device 122 is a camera, and the lighting device 123 is an LED light, which provides sufficient brightness for the shooting device 122. Figure 4 As shown, the lighting device 123 is located in front of the imaging device 122, with a gap in the center of the lighting device 123 to avoid obstructing the injection molded part. Preferably, the frame 121 is adjustablely mounted on the frame 110. By adjusting the position of the frame 121, the positions of the imaging device 122 and the lighting device 123 can be adjusted to adjust the detection range of the detection component 120.

[0038] In some embodiments, the frame 121 and / or the frame 110 are provided with an adjustment mechanism. The adjustment mechanism is used to adjust the position of the frame 121 in the x, y, and / or z directions. The adjustment mechanism also allows the frame 121 to be rotatably mounted on the frame 110. Through the adjustment mechanism, the position of the frame 121 in the x, y, and / or z directions can be adjusted, and the frame 121 can also be rotated, thereby adapting to injection molded parts of different sizes, different placement postures, or different inspection areas.

[0039] In some embodiments, the adjustment mechanism includes a first slide 141, which is disposed on the frame 110 and is located in the x, y, and / or z directions. For example... Figure 1 and Figure 2 As shown, the first slide groove 141 is set along the y-direction; as Figure 3 As shown, the first slide 141 can also be arranged along the y-direction and the z-direction. The frame 121 includes a first frame 1211, which is used to mount the shooting equipment 122 and the lighting equipment 123, such as... Figure 4 As shown. For example, the shooting device 122 and the lighting device 123 are mounted on the first frame 1211 by means of snap-fit ​​and / or bolt fixing. The adjustment mechanism also includes a first mounting hole 142 provided on the first frame 1211, the first mounting hole 142 being connected to the first slide groove 141 via a first connector, such as... Figure 2 , Figure 4 and Figure 5 As shown. Exemplarily, the first groove 141 is a slot formed on the profile of the frame 110. The first mounting hole 142 is a round hole. The first connector is a connecting screw. In this embodiment, the injection molding part missing glue detection device can adjust the detection component 120 in the x, y and / or z directions by adjusting the position of the first frame 1211 on the first groove 141.

[0040] In some embodiments, the adjusting mechanism further includes a second slide groove 143, which is disposed on the first frame 1211 and connected to the first slide groove 141 via a second connector, such as... Figure 2 , Figure 4 and Figure 5 As shown. Exemplarily, there are two second slide grooves 143, located on either side of the first mounting hole 142. Exemplarily, one of the second slide grooves 143 is connected to the first slide groove 141 via a second connector; or both of the second slide grooves 143 are connected to the first slide groove 141 via second connectors. The connection between the second slide groove 143 and the first slide groove 141 via the second connectors enhances the stability of the connection between the first frame 1211 and the frame 110. Exemplarily, the second connector is a connecting screw.

[0041] Preferably, the second groove 143 is an arc-shaped groove, such as... Figure 2 , Figure 4 and Figure 5 As shown. The second slide grooves 143 are symmetrically arranged on both sides of the first mounting hole 142. In this embodiment, the injection molding part missing glue detection device allows the detection component 120 to rotate in the xoy plane by adjusting the connection position between the first slide groove 141 and the second slide groove 143. Figure 3 A schematic diagram of the detection component 120 after it rotates in the xoy plane is shown.

[0042] For example, before inspecting the injection molded part, the first connector and the second connector are loosened so that the first frame 1211 is in a free state. The first frame 1211 is adjusted to a suitable position by sliding and / or rotating. Then the first connector and the second connector are tightened to fix the first frame 1211 on the frame 110.

[0043] In some embodiments, the frame 121 further includes a second frame 1212. The second frame 1212 is mounted on the first frame 1211. The second frame 1212 is used to mount the shooting equipment 122, such as... Figure 4 As shown. Figure 4 and Figure 6 As shown, the second frame 1212 is also equipped with a pad 1214, on which the shooting device 122 is mounted. The mounting height of the shooting device 122 can be adjusted by setting the pad 1214.

[0044] In some embodiments, the adjustment mechanism further includes a third slide groove 144 and a plurality of spaced-apart second mounting holes 145. One of the third slide groove 144 and the second mounting hole 145 is located on the first frame 1211, and the other is located on the second frame 1212. The third slide groove 144 and the second mounting hole 145 are connected by a third connector. By adjusting the connection position between the third slide groove 144 and the second mounting hole 145, the position of the imaging device 122 in the x-direction can be adjusted. For example, the third connector is a connecting screw. Figures 4-6As shown, the second mounting hole 145 is provided on the first frame 1211, and the third slide groove 144 is provided on the second frame 1212. This avoids the potential problem of the first frame 1211 having too many slide grooves, which would result in the first frame 1211 having too low strength.

[0045] Not limited to this, the multiple spaced second mounting holes 145 can also be long slot structures.

[0046] In some embodiments, the first frame 1211 is also provided with a positioning block 1215, such as Figure 4 and Figure 5 As shown. For example, the distance between the two positioning blocks 1215 is the same as the width of the second frame 1212. When the second frame 1212 is placed between the two positioning blocks 1215, the movement of the second frame 1212 in its width direction can be restricted by the two positioning blocks 1215, thereby making it easy to align the third slide 144 and the second mounting hole 145.

[0047] In some embodiments, the frame 121 further includes a third frame 1213, which is mounted on the first frame 1211. The third frame 1213 is used to mount the lighting equipment 123, such as... Figure 4 As shown.

[0048] In some embodiments, the adjustment mechanism further includes a fourth slide groove 146 and a plurality of spaced-apart third mounting holes 147. One of the fourth slide groove 146 and the third mounting holes 147 is located on the first frame 1211, and the other is located on the third frame 1213, and the fourth slide groove 146 and the third mounting holes 147 are connected by a fourth connector. Exemplarily, the fourth connector is a connecting screw. By adjusting the connection position between the fourth slide groove 146 and the third mounting holes 147, the position of the lighting device 123 in the x-direction can be adjusted. Figure 4 , Figure 5 and Figure 7 As shown, the third mounting hole 147 is provided on the first frame 1211, and the fourth slide groove 146 is provided on the third frame 1213. This avoids the potential problem of the first frame 1211 having too many slide grooves, which would result in the first frame 1211 having too low strength.

[0049] Not limited to this, the multiple spaced third mounting holes 147 can also be long slot structures.

[0050] The slide grooves mentioned in this embodiment are elongated grooves. That is, the first slide groove 141, the second slide groove 143, the third slide groove 144, and the fourth slide groove 146 are all elongated groove structures so that the position of the detection component 120 can be adjusted.

[0051] The injection molding part insufficient glue detection system of this embodiment includes the injection molding part insufficient glue detection device of any of the technical solutions in this embodiment. It is not limited thereto; the injection molding part insufficient glue detection system of this embodiment may also include a robotic arm and a robotic gripper, through which loading and unloading operations can be performed.

[0052] The injection molding part missing glue detection system of this embodiment has any of the technical solutions of the injection molding part missing glue detection device in this embodiment, so that the injection molding part missing glue detection system of this embodiment can not only improve the detection efficiency, but also improve the detection accuracy of each detection component 120.

[0053] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0054] Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0055] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A device for detecting insufficient glue in injection molded parts, characterized in that, It includes a frame (110) and a detection assembly (120). The frame (110) is used to connect to the mounting part, and the detection assembly (120) includes multiple sets, enabling the detection assembly (120) to simultaneously detect multiple injection molded parts. Multiple sets of the detection components (120) are adjustablely mounted on the frame (110) so that the detection range of the detection components (120) can cover the injection molded part.

2. The injection molding part missing glue detection device according to claim 1, characterized in that, Multiple sets of the detection components (120) are disposed on opposite sides of the frame (110), and the detection components (120) located on both sides of the frame (110) are disposed opposite to each other; And / or, multiple sets of the detection components (120) are disposed on one side of the frame (110), and the detection components (120) located on the same side of the frame (110) are offset in the height direction.

3. The injection molding part missing glue detection device according to claim 2, characterized in that, It also includes a light shield (130) which is adjustablely mounted on the frame (110) and is used to separate multiple sets of the detection components (120).

4. The injection molding part missing glue detection device according to any one of claims 1 to 3, characterized in that, The detection component (120) includes a frame (121), a shooting device (122), and a lighting device (123). The frame (121) is used to mount the shooting device (122) and the lighting device (123). The frame (121) is adjustablely mounted on the frame (110).

5. The injection molding part missing glue detection device according to claim 4, characterized in that, The frame (121) and / or the machine frame (110) are provided with an adjustment mechanism, which is used to adjust the position of the frame (121) in the x direction, y direction and / or z direction, and the adjustment mechanism also enables the frame (121) to be rotatably mounted on the machine frame (110).

6. The injection molding part missing glue detection device according to claim 5, characterized in that, The adjustment mechanism includes a first slide (141), which is disposed on the frame (110) and is located in the x direction, y direction and / or z direction; The frame (121) includes a first frame (1211), and the adjustment mechanism further includes a first mounting hole (142) provided on the first frame (1211), and the first mounting hole (142) is connected to the first slide (141) through a first connector.

7. The injection molding part missing glue detection device according to claim 6, characterized in that, The adjustment mechanism further includes a second slide (143), which is disposed on the first frame (1211). The second slide (143) is connected to the first slide (141) through a second connector, and the second slide (143) is an arc-shaped groove.

8. The injection molding part missing glue detection device according to claim 6, characterized in that, The frame (121) also includes a second frame (1212) for mounting the shooting equipment (122). The adjustment mechanism further includes a third slide (144) and a plurality of spaced second mounting holes (145). One of the third slide (144) and the second mounting holes (145) is located on the first frame (1211) and the other is located on the second frame (1212). The third slide (144) and the second mounting holes (145) are connected by a third connector.

9. The injection molding part missing glue detection device according to claim 6, characterized in that, The frame (121) also includes a third frame (1213) for mounting the lighting equipment (123). The adjustment mechanism further includes a fourth slide groove (146) and a plurality of spaced third mounting holes (147), one of the fourth slide groove (146) and the third mounting holes (147) being provided on the first frame (1211) and the other being provided on the third frame (1213), and the fourth slide groove (146) and the third mounting holes (147) being connected by a fourth connector.

10. A system for detecting insufficient glue in injection molded parts, characterized in that, The device for detecting insufficient glue in injection molded parts includes any one of claims 1 to 9.

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