A device for detecting a plastic part

Abstract

The utility model relates to the technical field of plastic part detection, concretely to a kind of detection device of plastic part, including operation platform and the double-belt type conveying table of installation on operation platform, and the multiple visual detection devices of installation in middle end position.The detection device of the plastic part, by setting double-belt type conveying table realizes the automatic conveying of plastic plate, and the positioning and lifting of limiting lifting assembly are carried out to plastic plate, and it is convenient for visual detection device accurate detection first face;After detection is completed, limiting lifting assembly cooperates with lifting assembly and plate turning assembly, realizes the automatic turning of plastic plate, without manual operation, avoid secondary injury;Second face is detected again by visual detection device after turning, and double shift component can drive visual detection device to move flexibly, ensure detection comprehensiveness, the degree of automation of whole process is high, reduces manual intervention, improves detection efficiency and accuracy, satisfies industrialization batch production demand.

Description

Technical Field

[0001] This utility model relates to the field of plastic parts testing technology, specifically a plastic parts testing device. Background Technology

[0002] Plastic sheets are widely used in various equipment due to their lightweight, corrosion resistance, and low cost. They play a crucial role in supporting the internal structure and also serve as protective panels to protect the core components of the equipment. Therefore, the integrity of plastic sheets is directly related to the operational stability and service life of the equipment, and the detection of surface and internal damage has become an indispensable part of the production process.

[0003] However, in the traditional plastic sheet inspection process, the current mainstream inspection methods can often only complete the damage detection on one side of the plastic sheet. When it is necessary to check the other side, it is necessary to rely on manual flipping and then repeat the previous inspection process. This mode not only significantly increases the labor cost of inspection, but more importantly, the plastic sheet may be damaged again due to improper operation during manual flipping, affecting product quality. At the same time, frequent manual intervention will reduce the continuity of inspection and easily cause missed or false detections due to human negligence. Especially for mass-produced plastic sheets, traditional inspection methods are difficult to meet the needs of efficient and accurate industrial production. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: a plastic part inspection device, including an operating table and a double-belt conveyor mounted on the operating table, and multiple sets of visual inspection devices installed in the middle. The double-belt conveyor is equipped with lifting components and flipping components that are relatively distributed on both sides, and multiple limiting and lifting components are installed on the inner side. The flipping component includes a frame plate, in which a bidirectional moving group is installed. A second rotary cylinder is installed at the horizontal pushing end of the bidirectional moving group. A rotating plate is fixed to the drive shaft of the second rotary cylinder. A counter-pushing group is installed on one side of the rotating plate, and clamping plates are fixed to the pushing ends of the counter-pushing groups.

[0005] Furthermore, the bidirectional moving assembly includes a third lead screw device installed on the inner side of the frame plate and multiple guide rods. A horizontal block that passes through the guide rods is fixed on the nut of the third lead screw device. A lifting cylinder is fixed on the top of the horizontal block. A vertical plate is fixed on the piston rod of the lifting cylinder. The second rotary cylinder is installed on the vertical plate.

[0006] Furthermore, the counter-pushing assembly includes two sets of counter-pushing cylinders mounted on the rotating plate and distributed opposite each other, with the piston rods of the counter-pushing cylinders fixed to the corresponding clamping plates.

[0007] Furthermore, the limiting and lifting assembly includes a support plate, on which a push cylinder is mounted, and the piston rod of the push cylinder is fixed to the push plate.

[0008] Furthermore, a push-block cylinder is fixed to one side of the support plate, and a baffle is fixed to the piston rod of the push-block cylinder. The push plate is wide at both ends and narrow in the middle, and both ends are concave. Both ends of the concave shape extend upwards. The baffle can pass through the slot at one end of the push plate.

[0009] Furthermore, the lifting assembly includes a side plate, on which a lifting cylinder is mounted and a lifting plate is slidably connected and fixed to the piston rod of the lifting cylinder. A side-push cylinder is mounted on the top of the lifting plate, and a first rotary cylinder is mounted on the pushing end of the side-push cylinder. A clamping cylinder is mounted on the rotating end of the first rotary cylinder.

[0010] Furthermore, a dual-movement assembly is also installed on the operating table. The dual-movement assembly includes a base frame, on which a first lead screw device is installed, and an upper frame is slidably connected and fixed to the nut end of the first lead screw device. A second lead screw device is installed on the back of the upper frame, and a movable plate is slidably connected to the front and fixed to the nut end of the second lead screw device. The vision inspection device is installed on the movable plate.

[0011] Furthermore, a feeding assembly is installed at the first end of the double-belt conveyor; the feeding assembly includes multiple opposing push cylinders installed on both sides of the double-belt conveyor, the piston rod of the opposing push cylinder is fixed with a support plate, a base plate is fixed on the inner side of the double-belt conveyor, a push cylinder is installed on the top of the base plate, an ejection cylinder is installed on the pushing end of the push cylinder, and a support plate located between the multiple support plates is fixed on the piston rod of the ejection cylinder.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] This plastic part inspection device automatically transports plastic sheets using a dual-belt conveyor system. A limiting and lifting assembly positions and lifts the plastic sheets, facilitating accurate inspection of the first side by a vision inspection device. After inspection, the limiting and lifting assembly, along with the lifting and flipping assembly, automatically flips the plastic sheet without manual intervention, preventing secondary damage. The second side is then inspected again by the vision inspection device. A dual-movement assembly allows the vision inspection device to move flexibly, ensuring comprehensive inspection. The entire process is highly automated, reducing manual intervention and improving inspection efficiency and accuracy, meeting the needs of industrial mass production. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the feeding component in this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the lifting component in this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the flap assembly in this utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of the limiting and lifting component in this utility model;

[0019] Figure 6 This is a three-dimensional structural diagram of the dual-shift component in this utility model.

[0020] In the diagram: 1. Operating platform; 2. Double belt conveyor; 3. Push cylinder; 4. Support plate; 5. Unloading assembly; 51. Base plate; 52. Push cylinder; 53. Ejection cylinder; 54. Support plate; 6. Limiting and lifting assembly; 61. Support plate; 62. Push cylinder; 63. Baffle; 64. Push cylinder; 65. Push plate; 7. Double shift assembly; 71. Base frame; 72. First screw device; 73. Upper frame; 74. Second screw device; 7 5. Moving plate; 8. Lifting assembly; 81. Side plate; 82. Lifting cylinder; 83. Lifting plate; 84. Side push cylinder; 85. First rotary cylinder; 86. Clamping cylinder; 9. Flip plate assembly; 91. Frame plate; 92. Guide rod; 93. Third lead screw device; 94. Horizontal block; 95. Pushing cylinder; 96. Vertical plate; 97. Second rotary cylinder; 98. Turning plate; 99. Back push cylinder; 910. Clamping plate; 10. Visual inspection device. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-6 This embodiment of a plastic part inspection device includes an operating table 1, on which a double-belt conveyor 2 is installed to carry and transport plastic parts, ensuring that the plastic parts move stably to each inspection and processing station. A double-shift assembly 7 is installed on the operating table 1, and two sets of vision inspection devices 10 are installed on the double-shift assembly 7. A lifting assembly 8 is installed on the back of the double-belt conveyor 2, and a flip-plate assembly 9 distributed opposite to the lifting assembly 8 is installed on the front. At least five sets of limiting and lifting assemblies 6 are installed on the inner side of the double-belt conveyor 2, and a feeding assembly 5 is installed at the front end of the double-belt conveyor 2.

[0023] In the above structure, the board is placed onto the double-belt conveyor by the unloading component to complete the unloading. The board is then moved forward by the double-belt conveyor to the area below the first vision inspection device. At this point, the limiting and lifting component retracts the board to a limiting position. The double-shifting component works in conjunction with the vision inspection device to complete the inspection. The next set of limiting and lifting components then limits the board to a position between the lifting component and the flipping component. The two components work together to flip the board. Finally, the next set of vision inspection devices completes the inspection. This allows for automated board flipping, enabling double-sided inspection and thus improving inspection efficiency.

[0024] The unloading assembly 5 includes four opposing push cylinders 3 fixed to the first end of the double-belt conveyor 2. The piston rods of the push cylinders 3 are fixed with support plates 4. The push cylinders and support plates cooperate to clamp the bottom plate, forming a support. A base plate 51 is fixed to the inner side of the first end of the double-belt conveyor 2. A push cylinder 52 is fixed on the base plate 51. An ejector cylinder 53 is fixed to the drive end of the push cylinder 52. A support plate 5 is fixed to the piston rod of the ejector cylinder 53. 4. The push cylinder 52 drives the ejector cylinder 53 and the support plate 54 to rise vertically. The ejector cylinder 53 further pushes the support plate 54 to move up to be in contact with the bottom plate. At the same time, the two side push cylinders 3 drive the support plate 4 to retract. The ejector cylinder retracts, so that the second to last plate is opposite to the support plate. The support plate is pushed out and fixed by the push cylinder. Then the push cylinder retracts, so that the bottom plate is on the double belt conveyor table 2, completing the feeding.

[0025] like Figure 5 The limiting and lifting assembly 6 includes a support plate 61 fixed inside the double-belt conveyor table 2. A convex plate is formed on the top of the support plate 61. A push cylinder 64 is installed on the right side of the convex plate. A push plate 65 is fixed to the piston rod of the push cylinder 64. The push plate 65 is wider at both ends and narrower in the middle, and both ends are provided with concave surfaces. The convex ends of the concave surfaces at both ends extend upward. A push-stop cylinder 62 is installed on the left side of the convex plate. A baffle 63 is fixed to the piston rod of the push-stop cylinder 62. The baffle 63 is located below the concave surface on the left side of the push plate 65.

[0026] When the plastic part moves to the inspection station, the push cylinder 62 drives the baffle 63 to extend upward through the slot of the push plate 65, blocking the plastic part from moving further to achieve lateral positioning; at the same time, the push cylinder 64 drives the push plate 65 to move upward, and its concave structure matches the edge of the plastic part, lifting the plastic part away from the conveyor table and achieving longitudinal limitation, ensuring stable position during inspection and flipping.

[0027] like Figure 6The dual-movement assembly 7 drives the vision inspection device 10 to achieve multi-dimensional movement to adapt to the inspection needs of plastic parts of different sizes. The dual-movement assembly 7 includes a base frame 71 fixed on the operating table 1, a first lead screw device 72 mounted on the top of the base frame 71, and an upper frame 73 slidably connected and fixed to the nut end of the first lead screw device 72. A second lead screw device 74 is mounted on the back of the upper frame 73, and an opening is also provided on the upper frame 73. A movable plate 75 is slidably connected to the front, and the back of the movable plate 75 passes through the opening and is fixed to the nut end of the second lead screw device 74. Both vision inspection devices 10 are mounted on the movable plate 75.

[0028] The first lead screw device 72 on the base frame 71 drives the upper frame 73 to move back and forth, and the second lead screw device 74 on the back of the upper frame 73 drives the moving plate 75 to move left and right, thereby driving the vision inspection device 10 to adjust the inspection position; the vision inspection device 10 adopts a high-definition industrial camera and image recognition system, which can accurately detect surface and internal damage of plastic parts.

[0029] like Figure 3 The lifting assembly 8 includes a side plate 81 fixed to the side of the double belt conveyor 2 near the double shift assembly 7. A lifting cylinder 82 is installed on the front of the side plate 81, and a lifting plate 83 is slidably connected and fixed to the piston rod of the lifting cylinder 82. The lifting cylinder drives the lifting plate to rise and fall in the vertical direction. A side push cylinder 84 is installed on the top of the lifting plate 83. A first rotary cylinder 85 is installed on the top of the push end of the side push cylinder 84. A clamping cylinder 86 is installed on the rotation shaft of the first rotary cylinder 85. The clamping cylinder is moved by the side push cylinder 84 to clamp and fix the edge of the plastic part. Then, the lifting cylinder pushes the lifting plate to rise, thereby separating the plate from the top push plate, which is convenient for the flip plate assembly to clamp the plate. The first rotary cylinder 85 can be adjusted to a suitable clamping angle according to the shape requirements of the plate.

[0030] like Figure 4 The flip plate assembly 9 includes a frame plate 91 fixed on the side of the double belt conveyor 2 away from the double shift assembly 7. A third lead screw device 93 is installed on the inner side of the frame plate 91, and guide rods 92 are fixed on both sides of the third lead screw device 93. A horizontal block 94 guided by the guide rods 92 is fixed to the nut end of the third lead screw device 93. A pushing cylinder 95 is installed on the top of the horizontal block 94. A vertical plate 96 is fixed to the pushing end of the pushing cylinder 95. A second rotary cylinder 97 is installed on the left side of the vertical plate 96. A rotating plate 98 is fixed to the rotating shaft of the second rotary cylinder 97. Two sets of back-push cylinders 99 distributed in opposite directions are installed on the right side of the rotating plate 98. A clamping plate 910 is fixed to the piston rod of the back-push cylinder 99.

[0031] The third lead screw device 93 drives the horizontal block 94 to move laterally along the guide rod 92. The pushing cylinder 95 drives the vertical plate 96 and the second rotary cylinder 97 to rise and fall. The back-push cylinder 99 on the rotating plate 98 drives the clamping plate 910 to engage, which can clamp the plastic part. Then the third lead screw device retracts. The second rotary cylinder 97 can drive the rotating plate 98 and the clamped plastic part to rotate 180° to achieve flipping.

[0032] The working principle of the above embodiments is as follows:

[0033] The unloading assembly precisely loads the plastic parts. Four opposing push cylinders clamp and support the bottom plate via support plates. Push cylinders on the bottom plate drive ejector cylinders and a support plate to rise, bringing the support plate into contact with the bottom plate. Then, the opposing push cylinders retract the support plate, and the ejector cylinders retract simultaneously, aligning the penultimate plate with the support plate. The opposing push cylinders then drive the support plate to eject and secure the penultimate plate. Finally, the push cylinders retract, and the bottom plate falls onto the double-belt conveyor, completing the loading process. The double-belt conveyor then transports the plate to… The first inspection station: The corresponding limiting and lifting assembly is activated, and the push-block cylinder drives the baffle to extend upward through the slot of the top push plate, blocking the plate and achieving lateral positioning; simultaneously, the top push cylinder drives the top push plate to move upward, using its concave structure to adapt to the edge of the plate, lifting the plate off the conveyor table and achieving longitudinal limiting, ensuring inspection stability. The dual-movement assembly drives the vision inspection device to complete the inspection: the first lead screw device on the base frame drives the upper frame to move back and forth, and the second lead screw device on the back of the upper frame drives the moving plate and the vision inspection device to move left and right, adjusting to the appropriate inspection position; the high-definition industrial camera and image recognition system of the vision inspection device accurately detect the surface and internal damage of the plate. The plate is conveyed between the lifting assembly and the flipping assembly. The next set of limiting and lifting assemblies repeats the limiting action, and the side push cylinder drives the clamping cylinder to move to the edge of the plate, clamping the plate; then the lifting cylinder pushes the lifting plate upward, causing the plate to detach from the top push plate. The third lead screw device on the inside of the frame drives the cross block to move along the guide rod, placing the plate between the two sets of clamping plates, turning... The back-push cylinder on the plate drives the clamping plate to engage and clamp the plate. The push cylinder drives the upright plate and the second rotary cylinder to rise. The third lead screw device retracts to disengage the plate from the lifting assembly. The second rotary cylinder drives the rotating plate and the plate to rotate 180° to complete the flipping. The flipped plate is then placed back on the top push plate. After retraction, it is placed on the double belt conveyor and transported to the next inspection station. After being limited by another set of limit and lifting components, the second set of vision inspection devices inspects the other side of the plate to complete the double-sided inspection.

[0034] The entire process enables automated feeding, double-sided inspection, and flipping of plastic parts, requiring no manual intervention and significantly improving inspection efficiency.

[0035] The entire workflow is now complete, and anything not described in detail in this specification is existing technology known to those skilled in the art.

[0036] It should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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. Without further limitations, 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 said element.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for inspecting plastic parts, comprising an operating table (1) and a double-belt conveyor (2) mounted on the operating table (1), and multiple sets of visual inspection devices (10) mounted in the middle, characterized in that: The double belt conveyor (2) is equipped with lifting components (8) and flip-plate components (9) that are relatively distributed on both sides, and multiple limiting lifting components (6) are installed on the inner side. The flip plate assembly (9) includes a frame plate (91), a bidirectional moving group is installed in the frame plate (91), a second rotary cylinder (97) is installed at the horizontal pushing end of the bidirectional moving group, a rotating plate (98) is fixed to the drive shaft of the second rotary cylinder (97), a counter-pushing group is installed on one side of the rotating plate (98), and a clamping plate (910) is fixed to the pushing end of the counter-pushing group.

2. The detection device for plastic parts according to claim 1, characterized in that: The bidirectional moving assembly includes a third lead screw device (93) installed inside the frame plate (91) and multiple guide rods (92). A horizontal block (94) passing through the guide rods (92) is fixed on the nut of the third lead screw device (93). A lifting cylinder (95) is fixed on the top of the horizontal block (94). A vertical plate (96) is fixed on the piston rod of the lifting cylinder (95). The second rotary cylinder (97) is installed on the vertical plate (96).

3. The detection device for plastic parts according to claim 2, characterized in that: The opposing push assembly includes two sets of back-push cylinders (99) mounted on the rotating plate (98) and distributed in opposite directions. The piston rod of the back-push cylinder (99) is fixed to the corresponding clamping plate (910).

4. The detection device for plastic parts according to claim 1, characterized in that: The limiting and lifting assembly (6) includes a support plate (61), on which a push cylinder (64) is mounted, and the piston rod of the push cylinder (64) is fixed with a push plate (65).

5. The detection device for plastic parts according to claim 4, characterized in that: A push-block cylinder (62) is fixed on one side of the support plate (61), and a baffle (63) is fixed on the piston rod of the push-block cylinder (62). The push plate (65) is wide at both ends and narrow in the middle, and both ends are concave. Both ends of the concave shape extend upward. The baffle (63) can pass through the slot at one end of the push plate (65).

6. The detection device for plastic parts according to claim 1, characterized in that: The lifting assembly (8) includes a side plate (81), on which a lifting cylinder (82) and a lifting plate (83) slidably connected and fixed to the piston rod of the lifting cylinder (82) are mounted. A side-push cylinder (84) is mounted on the top of the lifting plate (83), and a first rotary cylinder (85) is mounted on the pushing end of the side-push cylinder (84). A clamping cylinder (86) is mounted on the rotating end of the first rotary cylinder (85).

7. The testing device for plastic parts according to claim 1, characterized in that: The operating table (1) is also equipped with a double-movement assembly (7). The double-movement assembly (7) includes a base frame (71), on which a first lead screw device (72) is installed, and an upper frame (73) is slidably connected to and fixed to the nut end of the first lead screw device (72). A second lead screw device (74) is installed on the back of the upper frame (73), and a movable plate (75) is slidably connected to the front of the upper frame (73) and fixed to the nut end of the second lead screw device (74). The visual inspection device (10) is installed on the movable plate (75).

8. The testing device for plastic parts according to claim 1, characterized in that: The first end of the double belt conveyor (2) is equipped with a feeding assembly (5); the feeding assembly (5) includes multiple counter-push cylinders (3) installed on both sides of the double belt conveyor (2), the piston rod of the counter-push cylinder (3) is fixed with a support plate (4), the inner side of the double belt conveyor (2) is fixed with a base plate (51), the top of the base plate (51) is equipped with a push cylinder (52), the pushing end of the push cylinder (52) is equipped with an ejection cylinder (53), and the piston rod of the ejection cylinder (53) is fixed with a support plate (54) located between multiple support plates (4).

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