Flatness detection device for plastic sheet

Abstract

The utility model provides a plastic sheet flatness detection device, which comprises a base, a first motor, a second motor, a detector and a driving cylinder, the top of the base is fixedly connected with a first fixing plate, the top of the first fixing plate is fixedly connected with a second fixing plate, the first motor is fixedly connected with the top of the second fixing plate, and the second motor is fixedly connected with the second fixing plate. The driving end of the first motor is fixedly connected with a driving plate through a rotating shaft, the bottom of the end, away from the first motor, of the driving plate is fixedly connected with a driving rod, a movable plate is arranged below the second fixing plate, and an open groove is formed in the top of the movable plate. Through accurate control of the driving cylinder and the motor, the detector can stably and accurately move to any position of the plastic sheet, so that comprehensive and high-precision detection of the flatness of the plastic sheet is realized. The accurate control ensures the accuracy and reliability of the detection result.

Description

Technical Field

[0001] This utility model relates to the field of plastic sheet production technology, specifically to a device for detecting the flatness of plastic sheets. Background Technology

[0002] Flatness is a crucial indicator of plastic sheet quality during production and processing. Traditional methods for testing plastic sheet flatness typically rely on manual operation, involving visual inspection or the use of simple measuring tools. However, this method is not only inefficient but also susceptible to human error, leading to inconsistent accuracy and reliability of the test results.

[0003] With advancements in technology and the development of automation, more and more companies are seeking more efficient and accurate solutions for inspecting the flatness of plastic sheets. However, existing automated inspection devices often have limitations, such as limited inspection range, inability to adapt to plastic sheets of different sizes and shapes, and complex operation. These issues restrict the application of automated inspection devices in plastic sheet production, forcing companies to still rely on manual inspection, thus impacting production efficiency and product quality. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a device for detecting the flatness of plastic sheets.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a flatness detection device for plastic sheets, comprising a base, a first motor, a second motor, a detector, and a drive cylinder. A first fixing plate is fixedly connected to the top of the base, and a second fixing plate is fixedly connected to the top of the first fixing plate. The first motor is fixedly connected to the top of the second fixing plate, and a drive plate is fixedly connected to the drive end of the first motor via a rotating shaft. A drive rod is fixedly connected to the bottom of the drive plate at the end away from the first motor. A movable plate is provided below the second fixing plate, and a slot is formed on the top of the movable plate. The drive rod is slidably engaged within the slot. Two clamping plates are symmetrically fixedly connected to the bottom of the second fixing plate, and the two clamping plates respectively contact the side walls of the movable plate. Two connecting plates are symmetrically fixedly connected to the bottom of the base. Two clamping plates are located between the two connecting plates. The second motor is fixedly connected to the side wall of one of the connecting plates away from the clamping plate. A lead screw is fixedly connected to the drive end of the second motor. The lead screw is rotatably connected between the two connecting plates. Two limiting plates are threaded to the outer surface of the lead screw. An mounting plate is provided above the base. Sliding grooves are provided on both sides of the mounting plate. The sliding grooves on both sides of the mounting plate are slidably engaged with the two limiting plates respectively. The detector is installed on the front surface of the mounting plate. A limiting rod is fixedly connected to the top of the mounting plate. A limiting groove is provided at the bottom of the movable plate. The limiting rod is slidably engaged inside the limiting groove. The drive cylinder is fixedly connected to the top of the base. A placement plate is fixedly connected to the movable end of the drive cylinder.

[0006] Preferably, the upper and lower surfaces of the movable plate are in contact with the bottom of the drive plate and the top of the mounting plate, respectively.

[0007] Preferably, the placement plate is located below the detector.

[0008] Preferably, a fixing rod is fixedly connected between the two limiting plates, the lead screw is located directly in front of the fixing rod, and the fixing rod passes through the two limiting plates.

[0009] This utility model has the following beneficial effects:

[0010] 1. Through precise control of the drive cylinder and motor, the testing instrument can move smoothly and accurately to any position on the plastic sheet, thereby achieving comprehensive and high-precision testing of the flatness of the plastic sheet. This precise control ensures the accuracy and reliability of the test results.

[0011] 2. The detector can move freely in a horizontal plane, and the height of the plastic sheet on the placement plate is variable, making it adaptable to the testing needs of plastic sheets of different sizes and shapes. Operators can adjust the position of the detector according to the actual situation to cover the entire area to be tested, thereby improving the flexibility and adaptability of the testing. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] The components are as follows: 1. Base; 2. First fixing plate; 3. Second fixing plate; 4. First motor; 5. Drive plate; 6. Drive rod; 7. Movable plate; 8. Slot; 9. Clamping plate; 10. Connecting plate; 11. Second motor; 12. Lead screw; 13. Limiting plate; 14. Mounting plate; 15. Detector; 16. Limiting rod; 17. Limiting groove; 18. Drive cylinder; 19. Placement plate. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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. Example

[0015] like Figure 1As shown, this utility model embodiment provides a flatness detection device for plastic sheets, including a base 1, a first motor 4, a second motor 11, a detector 15, and a drive cylinder 18. A first fixing plate 2 is fixedly connected to the top of the base 1, and a second fixing plate 3 is fixedly connected to the top of the first fixing plate 2. The first motor 4 is fixedly connected to the top of the second fixing plate 3. A drive plate 5 is fixedly connected to the drive end of the first motor 4 via a rotating shaft. A drive rod 6 is fixedly connected to the bottom of the drive plate 5 at the end away from the first motor 4. A movable plate 7 is provided below the second fixing plate 3. A slot 8 is opened on the top of the movable plate 7, and the drive rod 6 is slidably engaged inside the slot 8. Two clamping plates 9 are symmetrically fixedly connected to the bottom of the second fixing plate 3. The two clamping plates 9 respectively contact the two side walls of the movable plate 7. Two connecting plates 9 are symmetrically fixedly connected to the bottom of the second fixing plate 3. A plate 10 and two clamping plates 9 are located between two connecting plates 10. A second motor 11 is fixedly connected to the side wall of one of the connecting plates 10 away from the clamping plate 9. A lead screw 12 is fixedly connected to the drive end of the second motor 11. The lead screw 12 is rotatably connected between the two connecting plates 10. Two limiting plates 13 are threadedly connected to the outer surface of the lead screw 12. An mounting plate 14 is provided above the base 1. Sliding grooves are provided on both sides of the mounting plate 14. The sliding grooves on both sides of the mounting plate 14 are slidably engaged with the two limiting plates 13 respectively. A detector 15 is installed on the front surface of the mounting plate 14. A limiting rod 16 is fixedly connected to the top of the mounting plate 14. A limiting groove 17 is provided at the bottom of the movable plate 7. The limiting rod 16 is slidably engaged inside the limiting groove 17. A drive cylinder 18 is fixedly connected to the top of the base 1. A placement plate 19 is fixedly connected to the movable end of the drive cylinder 18.

[0016] The upper and lower surfaces of the movable plate 7 are in close contact with the bottom of the drive plate 5 and the top of the mounting plate 14, respectively. The main purpose of this design is to ensure that the movable plate 7 maintains a constant height during movement, preventing wobbling or displacement due to uneven force or minor errors in the movement. Through this close contact design, the movable plate 7 can move stably along a predetermined path when driven by the drive rod 6, without height changes due to uneven force. This stability is crucial for ensuring that the detector 15 can accurately and stably detect the flatness of the plastic sheet.

[0017] The placement plate 19 is designed to be located below the detector 15. This layout allows the detector 15 to directly inspect the plastic sheet placed on the placement plate 19 without additional adjustments or movement. This design simplifies the inspection process and improves inspection efficiency. At the same time, the close proximity between the detector 15 and the plastic sheet also improves the accuracy and precision of the inspection.

[0018] The two limiting plates 13 are connected by a fixing rod, with the lead screw 12 located directly in front of the fixing rod. This design not only enhances the structural stability between the limiting plates 13 but also ensures that the lead screw 12 remains stable when driving the limiting plates 13 to move. The fixing rod passes through both limiting plates 13, further enhancing the connection strength between them. This design allows the limiting plates 13 to remain stable during movement, avoiding detection errors caused by shaking or offset.

[0019] Working Principle: When using the plastic sheet flatness detection device, the operator places the plastic sheet to be tested on the placement plate 19. Driven by the cylinder 18, the placement plate 19 and the plastic sheet on it are pushed upwards. When the plastic sheet rises to a certain position, it will contact the detector 15 on the mounting plate 14, ready for detection. The first motor 4 starts, driving the drive rod 6 at the bottom of the drive plate 5 to rotate in a circular motion. The drive rod 6 slides and engages with the slot 8 at the top of the movable plate 7, and the movable plate 7 is limited by two clamping plates 9. Therefore, the rotation of the drive rod 6 is converted into longitudinal linear movement of the movable plate 7 along the side wall of the clamping plate 9. Since the limiting rod 16 at the top of the mounting plate 14 is engaged in the limiting groove 17 at the bottom of the movable plate 7, the movement of the movable plate 7 will drive the mounting plate 14 to move together. The mounting plate 14 is slidably engaged with the sliding grooves on its two side walls by two limiting plates 13, ensuring its stable longitudinal movement. Thus, the detector 15 on the front surface of the mounting plate 14 also achieves longitudinal linear movement. The second motor 11 starts, driving the lead screw 12 to rotate. The rotation of the lead screw 12 causes the two limiting plates 13 to move laterally in a straight line. Because the limiting plates 13 are slidably engaged with the grooves of the mounting plate 14, they cause the mounting plate 14 and the detector 15 on it to move laterally together. Through the above-mentioned longitudinal and lateral movement adjustment, the detector 15 can change its position as needed. This allows the detector 15 to perform a comprehensive inspection of the flatness of the plastic sheet on the placement plate 19.

[0020] 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 detecting the flatness of a plastic sheet, comprising a base (1), a first motor (4), a second motor (11), a detector (15), and a drive cylinder (18), characterized in that: The base (1) is fixedly connected to the top of a first fixed plate (2), and the first fixed plate (2) is fixedly connected to the top of a second fixed plate (3). The first motor (4) is fixedly connected to the top of the second fixed plate (3). The drive end of the first motor (4) is fixedly connected to a drive plate (5) via a rotating shaft. The bottom of the drive plate (5) away from the first motor (4) is fixedly connected to a drive rod (6). A movable plate (7) is provided below the second fixed plate (3). A slot (8) is provided on the top of the movable plate (7). The drive rod (6) is slidably engaged in the slot (8). Two clamping plates (9) are symmetrically fixedly connected to the bottom of the second fixed plate (3). The two clamping plates (9) are in contact with the two side walls of the movable plate (7). Two connecting plates (10) are symmetrically fixedly connected to the bottom of the second fixed plate (3). The two clamping plates (9) are located between the two connecting plates (10). The second motor (11) is fixedly connected to the bottom of the second fixed plate (3). A fixed connection is made to the side wall of one of the connecting plates (10) away from the clamping plate (9). The drive end of the second motor (11) is fixedly connected to a lead screw (12). The lead screw (12) is rotatably connected between the two connecting plates (10). The outer surface of the lead screw (12) is threadedly connected to two limiting plates (13). An mounting plate (14) is provided above the base (1). The two side walls of the mounting plate (14) are provided with sliding grooves. The sliding grooves on the two side walls of the mounting plate (14) are respectively slidably engaged with the two limiting plates (13). The detector (15) is installed on the front surface of the mounting plate (14). A limiting rod (16) is fixedly connected to the top of the mounting plate (14). A limiting groove (17) is opened at the bottom of the movable plate (7). The limiting rod (16) is slidably engaged inside the limiting groove (17). The driving cylinder (18) is fixedly connected to the top of the base (1). The movable end of the driving cylinder (18) is fixedly connected to a placement plate (19).

2. The flatness detection device for plastic sheets according to claim 1, characterized in that: The upper and lower surfaces of the movable plate (7) are in contact with the bottom of the drive plate (5) and the top of the mounting plate (14), respectively.

3. The flatness detection device for a plastic sheet according to claim 1, characterized in that: The placement plate (19) is located below the detector (15).

4. The flatness detection device for a plastic sheet according to claim 1, characterized in that: A fixing rod is fixedly connected between the two limiting plates (13), and the lead screw (12) is located directly in front of the fixing rod. The fixing rod passes through the two limiting plates (13).

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