Test fixture and PET film thickness test equipment

Abstract

The utility model relates to the technical field of detection, in particular to a test fixture and PET film thickness test equipment. The device comprises a rack, winding rollers, a limiting installation assembly, a testing frame and a testing assembly, the rack is of an L-shaped structure, a winding motor is installed on the back face of a vertical section of the rack, the winding rollers are rotationally arranged at the two ends of the front face of the vertical section of the rack, the limiting installation assembly is arranged on the winding rollers, the testing frame is arranged at the bottom of the rack, and a detection assembly is arranged on the inner side of the testing frame. By arranging the winding roller and the limiting installation assembly, under the cooperation of the inserting plate, the arc-shaped plate and the driving mechanism, the PET film roll arranged in a rolled mode can be conveniently and rapidly installed and replaced, the film roll bypasses the rack and is wound on the winding roller, the film roll is automatically unfolded in the conveying process, the contact tightness of a film and the rack is guaranteed, and the production efficiency is improved. And the film roll is matched with the detection assembly in the conveying process, so that the film roll does not need to be detected by stopping conveying, and the overall detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection, in particular to a testing fixture and PET film thickness testing equipment. Background Art

[0002] PET film is a thin film made of polymer materials, which is often used in applications such as packaging, building materials and automotive coatings. The thickness of PET film has an important impact on its performance and cost, so it is very important to accurately measure its thickness. The PET film thickness measuring equipment is a device specially designed to measure the thickness of PET film, which is usually equipped with a test fixture for installing the film roll.

[0003] A Chinese patent with authorization announcement number CN218724029U discloses a PET film thickness detection device, which can adjust the front and rear distance between the detection mechanism and the film on the conveyor belt through the guide rails on both sides of the frame, and the vertical distance between the detection mechanism and the film to be detected can be adjusted by using an electric telescopic rod. The left and right position of the detection mechanism can be adjusted by using a driving mechanism. When the conveyor belt conveys the film to be detected to the middle of the frame, the conveyor belt stops conveying and the detection mechanism starts to detect the thickness of the film.

[0004] However, in the actual testing process of the film thickness detection device mentioned above, since the PET film is produced in rolls and is transported by a conveyor belt, the film roll needs to be unrolled before being transported, and the overall testing efficiency is poor; and after the film is unfolded, it is impossible to ensure that the film is in close contact with the conveyor belt, which makes the measurement data prone to errors. Utility Model Content

[0005] In view of the problems existing in the background technology, a test fixture and a PET film thickness test device are proposed. By being equipped with a winding roller and a limit installation component, with the cooperation of a plug plate, an arc plate and a driving mechanism, it is convenient to quickly install and replace the rolled PET film roll, and the film roll is wound around the frame and wound on the winding roller, so that it can be automatically unfolded during the conveying process, ensuring the tightness of the contact between the film and the frame, and the film roll cooperates with the detection component during the transmission process, and there is no need to stop the transmission for its detection, thereby improving the overall detection efficiency.

[0006] The utility model provides a test fixture, comprising

[0007] A frame having an L-shaped cross-sectional structure, a winding motor being arranged on the back of a vertical section of the frame;

[0008] A winding roller having a slide groove, a through groove and a receiving groove, which is rotatably arranged in two groups, respectively used for unwinding and rewinding the PET film to be tested; and

[0009] A limit installation assembly is provided on the winding roller and is used for installing and removing the film roll to be tested.

[0010] Preferably, the position limiting installation assembly includes a plug plate, an arc plate and a driving mechanism, and three groups of slide grooves and through grooves are provided, all of which are circumferentially arranged on the winding roller, and the corresponding through grooves are connected to the slide grooves;

[0011] The insert plate is slidably inserted in the slide groove, and an arc plate is arranged at the outer end thereof, on which a convex shaft is arranged which passes through the through groove and extends to the end of the winding roller, and a driving mechanism which cooperates with the convex shaft is arranged at the end of the winding roller.

[0012] Preferably, the driving mechanism includes a toothed disc, a driving motor and a gear. The toothed disc is rotatably arranged at the central axis of the end of the winding roller, and is provided with a guide hole for the cam shaft to pass through. The driving motor is installed in the accommodating groove, and its output end passes through the winding roller and is connected to a gear, which is meshed with the toothed disc.

[0013] The utility model also provides a PET film thickness testing device, which has the above-mentioned testing fixture and comprises a testing frame, which is arranged at the bottom of the frame and has a detection component arranged inside the testing frame.

[0014] Preferably, the detection component comprises

[0015] The test frame has guide posts symmetrically arranged on the inner side, and support springs are sleeved on the guide posts;

[0016] A movable plate is slidably arranged on the guide post, and a lower end surface of the movable plate is arranged in contact with the support spring; and

[0017] A detection probe is arranged on the top of the moving plate and abuts against the film to be detected.

[0018] Preferably, a pressure rod is also provided at the bottom of the movable plate, and a pressure-sensitive alarm is provided on the test stand directly facing the pressure rod.

[0019] Through the above technical scheme, that is, the PET film thickness testing equipment disclosed in the utility model, by being equipped with a winding roller and a limit installation component, with the cooperation of the plug plate, the arc plate and the driving mechanism, it is convenient to quickly install and replace the rolled PET film roll, and the film roll is wrapped around the frame and wound around the winding roller, so that it can automatically unfold during the transportation process, ensuring the tightness of the contact between the film and the frame, and the film roll cooperates with the detection component during the transmission process, and there is no need to stop the transportation for its detection, thereby improving the overall detection efficiency.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is a schematic diagram of the structure of a test fixture and a PET film thickness test device of the utility model;

[0022] Figure 2 for Figure 1 Schematic diagram of the rear structure;

[0023] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of the winding roller.

[0024] Figure numerals: 1. frame; 2. winding motor; 3. winding roller; 4. slide groove; 5. through groove; 6. receiving groove; 7. plug plate; 8. arc plate; 9. cam shaft; 10. gear plate; 11. driving motor; 12. gear; 13. guide hole; 14. test frame; 15. guide column; 16. supporting spring; 17. moving plate; 18. detection probe; 19. pressure rod; 20. pressure alarm. DETAILED DESCRIPTION

[0025] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0026] Embodiment 1

[0027] like Figure 1-Figure 3 As shown, a test fixture and PET film thickness testing equipment proposed by the utility model include a frame 1, a winding roller 3, a limit installation component, a test frame 14 and a test component. The frame 1 is arranged as an L-shaped structure, a winding motor 2 is installed on the back of its vertical section, and winding rollers 3 are rotatably arranged at both ends of the front of its vertical section. The winding roller 3 is provided with a limit installation component, and the test frame 14 is arranged at the bottom of the frame 1, and a detection component is arranged on the inner side thereof.

[0028] like Figure 3 As shown, the limit installation assembly includes an insert plate 7, an arc plate 8 and a driving mechanism. The outer wall and end face of the winding roller 3 are circumferentially provided with a plurality of groups of slide grooves 4 and through grooves 5, and the corresponding through grooves 5 are communicated with the slide grooves 4; the insert plate 7 is slidably inserted in the slide groove 4, and an arc plate 8 is provided at its outer end, on which a convex shaft 9 is provided that passes through the through groove 5 and extends to the end of the winding roller 3, and a driving mechanism that cooperates with the convex shaft 9 is provided at the end of the winding roller 3.

[0029] like Figure 3 As shown, the driving mechanism includes a toothed disc 10, a driving motor 11 and a gear 12. The toothed disc 10 is rotatably arranged at the central axis of the end of the winding roller 3, and is provided with a guide hole 13 for the cam shaft 9 to pass through. The outer wall of the winding roller 3 is also provided with a receiving groove 6. The driving motor 11 is installed in the receiving groove 6, and its output end passes through the winding roller 3 and is connected to the gear 12, which is meshed with the toothed disc 10.

[0030] Among them, the gear 12 is driven to rotate by the driving motor 11, and the gear 12 then drives the toothed disc 10 to adjust the angle. During the adjustment process, it pushes the convex shaft 9 through the hole wall of the guide hole 13, so that the convex shaft 9 drives the plug plate 7 to slide outward under the limit of the slide groove 4, and then drives the arc plate 8 to move outward synchronously.

[0031] Embodiment 2

[0032] like Figure 1-Figure 3 As shown, the utility model proposes a test fixture and a PET film thickness test device. Based on the above embodiment, this embodiment also records in detail the specific components of the detection component and the connection method between the detection component and the test frame 14.

[0033] like Figure 1 As shown, the detection components include

[0034] A guide post 15 is symmetrically arranged on the inner side of the test frame 14, and a support spring 16 is sleeved on the guide post 15;

[0035] A movable plate 17 is slidably disposed on the guide post 15, and a lower end surface of the movable plate 17 is disposed in contact with the support spring 16; and

[0036] A detection probe 18 is arranged on the top of the moving plate 17 , and abuts against the film to be detected under the action of the supporting spring 16 .

[0037] like Figure 2 As shown, a pressure rod 19 is also provided at the bottom of the movable plate 17, and a pressure-sensitive alarm 20 is provided on the test frame 14 opposite to the pressure rod 19. When the PET film is too thick, it drives the movable plate 17 to move downward through the detection head, so that the pressure rod 19 presses the pressure-sensitive alarm 20, thereby reminding the staff that the test is unqualified.

[0038] In summary, when the utility model is in use, the film roll to be detected and the empty roll to be wound are placed on the outer side of the winding roller 3, and the gear 12 is driven to rotate by the driving motor 11, and the gear 12 then drives the toothed disc 10 to adjust the angle. During the adjustment process, it pushes the convex shaft 9 through the hole wall of the guide hole 13, so that the convex shaft 9 drives the plug plate 7 to slide outward under the limit of the slide groove 4, and then drives the arc plate 8 to move synchronously to the outside, so that the arc plate 8 tensions and fixes the film roll from the inside, and then winds one end of the film on the film roll to be detected from the bottom of the frame 1 and above the detection probe 18 to the empty roll, and starts the winding motor 2. The winding motor 2 drives the empty roll to wind up the detected film, and the detection probe 18 detects the film during the winding process. When the film thickness exceeds the standard, the detection probe 18 will drive the movable plate 17 to move downward, and the pressure rod 19 at the bottom of the movable plate 17 presses the pressure sensing alarm 20, thereby reminding the staff that the detection is unqualified.

[0039] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A test fixture, characterized in that: include A frame (1) having an L-shaped cross-sectional structure, a winding motor (2) being arranged on the back of a vertical section of the frame (1); A winding roller (3) having a slide groove (4), a through groove (5) and a receiving groove (6), wherein two groups of winding rollers are rotatably arranged, respectively used for unwinding and rewinding the PET film to be tested; and A limit installation assembly is provided on the winding roller (3) and is used for installing and removing the film roll to be tested.

2. A test fixture according to claim 1, characterized in that: The position limiting installation assembly comprises a plug plate (7), an arc plate (8) and a driving mechanism, and three groups of slide grooves (4) and through grooves (5) are provided, all of which are arranged in a circular shape on the winding roller (3), and the corresponding through grooves (5) are communicated with the slide grooves (4); The insert plate (7) is slidably inserted in the slide groove (4), and an arc-shaped plate (8) is arranged at the outer end thereof, on which a convex shaft (9) is arranged which passes through the through groove (5) and extends to the end of the winding roller (3), and a driving mechanism which cooperates with the convex shaft (9) is arranged at the end of the winding roller (3).

3. A test fixture according to claim 2, characterized in that: The driving mechanism comprises a toothed disc (10), a driving motor (11) and a gear (12); the toothed disc (10) is rotatably arranged at the center axis of the end of the winding roller (3), and is provided with a guide hole (13) for the cam shaft (9) to pass through; the driving motor (11) is installed in the receiving groove (6), and its output end passes through the winding roller (3) and is connected to the gear (12); the gear (12) is meshedly connected with the toothed disc (10).

4. A PET film thickness testing device, comprising the testing fixture according to any one of claims 1 to 3, characterized in that: It comprises a test frame (14), which is arranged at the bottom of the frame (1) and has a detection component arranged inside.

5. A PET film thickness testing device according to claim 4, characterized in that, The detection components include A guide column (15) is symmetrically arranged on the inner side of the test frame (14), and a support spring (16) is sleeved on the guide column (15); A movable plate (17) is slidably arranged on the guide post (15), and its lower end surface is arranged in contact with the support spring (16); and A detection probe (18) is arranged on the top of the moving plate (17) and abuts against the film to be detected.

6. A PET film thickness testing device according to claim 5, characterized in that: A pressure rod (19) is also provided at the bottom of the movable plate (17), and a pressure-sensing alarm (20) is provided on the test frame (14) directly facing the pressure rod (19).

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