Paint film bending test device

Abstract

The utility model discloses a coating paint film bending test device, which belongs to the technical field of coating product quality inspection, and comprises a base and a carrying table integrally formed on the upper surface of the base, the edge of the upper surface of the carrying table is screwed with a compression bolt, one side of the compression bolt is provided with a compression plate, and the other side of the compression plate is provided with a clamping plate. Butterfly bolts in threaded connection with the carrying table are installed at the two ends of the pressing plate correspondingly, lug plates are symmetrically and fixedly connected to the edge, away from the pressing bolt, of the base, a shaft rod is detachably connected between the lug plates, a support of a U-shaped structure is rotationally connected to the shaft rod, and a bent rod is installed on the inner side of the support. A workpiece coated with paint can be conveniently fixed, the support is rotated through the shaft rod, the workpiece abuts against the shaft rod and is bent, finally, the workpiece is taken down, whether the coating on the workpiece cracks and peels off or not is checked, operation is very convenient, and the complexity in the operation process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coating product quality inspection, and more specifically to a coating film bending test device. Background Art

[0002] Paint is a viscous liquid coated on the surface of the object to be protected or decorated, and can form a continuous film that is firmly attached to the object. It is usually mainly resin, oil, or emulsion, with or without pigments, fillers, and corresponding additives, and is prepared with organic solvents or water. Film-forming substances are the main components of paint, including oils, oil processing products, cellulose derivatives, natural resins, synthetic resins, and synthetic emulsions. Film-forming substances also include some non-volatile active diluents, which are the main substances that make the paint firmly adhere to the surface of the object to be coated to form a continuous film. They are the basis of the paint and determine the basic properties of the paint.

[0003] The film-forming quality has a great influence on the service life of the coating. At present, conventional coatings can generally ensure good adhesion on fixed substrates, but when the substrate surface is in a repeatedly bent state, the coating often peels off. Therefore, how to simulate such interface conditions to examine the film-forming property and adhesion of the coating is a technical problem to be solved in this field. The existing patent is a bending tester for coatings on bent workpieces. The patent authorization number is CN 215812151 U. A lifting seat is provided above the midpoint of the two sliding seats. The lifting seat is connected to the lifting mechanism of the peripheral device by a clamp. The lower end of the lifting seat has a pressure head, which can perform a bending action on the plate below. The bending state of the plate can be constructed by continuous downward pressing action, so as to examine the state of the paint film on the surface of the plate.

[0004] However, the patent authorization number CN 215812151 U is provided with two sliding seats, which need to be adjusted according to the length of the workpiece to be tested, and the sliding seats need to be adjusted to be symmetrical according to the scale lines, and then the bending test is carried out. The operation is relatively cumbersome. In order to reduce the cumbersomeness of the operation process, we propose a paint film bending test device to solve the above-mentioned problems. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a paint film bending test device, which is convenient for fixing the workpiece coated with paint, and uses the shaft rod to rotate the bracket so that the workpiece abuts against the shaft rod and bends, and finally removes the workpiece to check whether the coating on the workpiece is cracked or peeled off. The operation is very convenient and reduces the complexity of the operation process.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A coating film bending test device comprises a base and a carrier formed integrally on the upper surface of the base, wherein the upper surface edge of the carrier is screwed with a clamping bolt;

[0010] A clamping plate is installed on one side of the clamping bolt, and butterfly bolts threadedly connected to the carrier are installed on both ends of the clamping plate;

[0011] The base is symmetrically and fixedly connected with ear plates at the edge away from the clamping bolt, and a shaft is detachably connected between the ear plates;

[0012] The shaft rod is rotatably connected to a bracket with a U-shaped structure, a bending rod is installed on the inner side of the bracket, and adjustment studs are integrally formed at both ends of the bending rod. An adjustment hole that matches the clearance of the adjustment stud is opened on the side wall of the bracket, a screw is threaded on the end of the bracket, and one end of the screw is rotatably connected to the bending rod.

[0013] Furthermore, an outer facade of one of the ear plates is provided with an angular scale, and a plurality of the angular scales are provided at radial positions of the shaft.

[0014] Furthermore, a pointer is fixedly connected to the outer wall of the bracket corresponding to the angle scale, and the pointer is arranged in an L-shaped structure.

[0015] Furthermore, locking sleeves abutting against the ear plates are installed at both ends of the shaft, and an internal threaded portion is formed on the inner wall of the locking sleeve.

[0016] Furthermore, outer walls at both ends of the shaft rod are provided with external threaded portions, and the external threaded portions are threadedly connected with the internal threaded portions.

[0017] Furthermore, an axial hole is provided at the junction of the bracket and the shaft rod, and the inner diameter of the axial hole is matched with the outer diameter of the shaft rod.

[0018] Furthermore, a handle is installed at one end of the screw rod away from the bending rod, and the outer wall of the handle is provided with anti-slip grooves.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] (1) In this scheme, the end of the workpiece is clamped and fixed by using the nut of the clamping bolt, and then the butterfly bolt is screwed to the carrier to position the workpiece using the clamping plate. The screw is rotated to make the adjusting column head slide with the adjusting hole, and the position of the bending rod is adjusted so that the bending rod corresponds to the workpiece and abuts against the lower surface of the workpiece. The bracket is rotated by the shaft rod to make the workpiece abut against the shaft rod and bend. Finally, the workpiece is removed to check whether the coating on the workpiece is cracked or peeled off. The operation is very convenient and reduces the complexity of the operation process.

[0022] (2) In this scheme, when the bracket rotates through the shaft, the pointer is used to rotate corresponding to the angle scale, so that the bending angle of the workpiece can be understood. By bending multiple workpieces at different angles for comparison, the maximum bending failure angle of the coating can be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 This is a schematic diagram of the ear plate structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the shaft structure of the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the compression plate of the utility model;

[0027] Figure 5 This is a schematic diagram of the support structure of the utility model.

[0028] Description of the numbers in the figure:

[0029] 1. Base; 2. Carrier; 3. Clamping bolt; 4. Clamping plate; 5. Butterfly bolt; 6. Ear plate; 7. Axle rod; 8. Locking sleeve; 9. Bracket; 10. Bending rod; 11. Adjusting column head; 12. Adjusting hole; 13. Screw; 14. Handle; 15. Pointer; 16. Angular scale. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0031] Example:

[0032] See also Figure 1-5, a coating film bending test device, comprising a base 1 and a carrier 2 integrally formed on the upper surface of the base 1, wherein a clamping bolt 3 is screwed to the edge of the upper surface of the carrier 2;

[0033] A clamping plate 4 is installed on one side of the clamping bolt 3, and butterfly bolts 5 threadedly connected to the carrier 2 are installed at both ends of the clamping plate 4;

[0034] The edge of the base 1 away from the clamping bolt 3 is symmetrically fixedly connected with ear plates 6, and the ear plates 6 are detachably connected with shaft rods 7;

[0035] A bracket 9 with a U-shaped structure is rotatably connected at the shaft 7, a bending rod 10 is installed on the inner side of the bracket 9, and an adjustment column head 11 is integrally formed at both ends of the bending rod 10. An adjustment hole 12 with a clearance fit with the adjustment column head 11 is opened on the side wall of the bracket 9, and a screw rod 13 is screwed at the end of the bracket 9, and one end of the screw rod 13 is rotatably connected to the bending rod 10;

[0036] It should be noted that when the paint film bending test device is in use, the workpiece coated with paint is placed on the carrier 2, and the end of the workpiece is clamped and fixed by the nut of the clamping bolt 3, and then the butterfly bolt 5 is screwed to the carrier 2 and the workpiece is positioned by the clamping plate 4. The screw 13 is rotated to make the adjustment column head 11 slide in cooperation with the adjustment hole 12, and the position of the bending rod 10 is adjusted so that the bending rod 10 corresponds to the workpiece and abuts against the lower surface of the workpiece. The bracket 9 is rotated by the shaft 7 so that the workpiece abuts against the shaft 7 and bends. Finally, the workpiece is removed to check whether the coating on the workpiece is cracked or peeled off. The operation is very convenient, which reduces the complexity of the operation process.

[0037] like Figure 1 , Figure 2 , Figure 5 As shown, an angular scale 16 is provided on the outer facade of one of the ear plates 6, and a plurality of angular scales 16 are provided at radial positions of the shaft 7, and a pointer 15 is fixedly connected to the outer wall of the bracket 9 corresponding to the angular scale 16, and the pointer 15 is provided in an L-shaped structure;

[0038] It should be noted that during the rotation of the bracket 9 by the shaft 7, the pointer 15 is used to rotate the corresponding angle scale 16, so that the bending angle of the workpiece can be understood. By bending multiple workpieces at different angles for comparison, the maximum bending damage angle of the coating can be tested.

[0039] like Figure 1 , Figure 3 As shown, both ends of the shaft rod 7 are equipped with locking sleeves 8 that abut against the ear plates 6, and the inner wall of the locking sleeve 8 is provided with an internal threaded portion, and both ends of the shaft rod 7 are provided with external threaded portions on the outer walls, and the external threaded portions are screwed with the internal threaded portions;

[0040] It should be noted that it is convenient to disassemble and assemble the shaft rod 7, and thus it is convenient to disassemble and assemble the bracket 9.

[0041] like Figure 1 , Figure 5 As shown, a shaft hole is provided at the junction of the bracket 9 and the shaft rod 7, and the inner diameter of the shaft hole is adapted to the outer diameter of the shaft rod 7;

[0042] It should be noted that the stability of the bracket 9 and the shaft rod 7 during the rotation process is ensured.

[0043] like Figure 5 As shown, a handle 14 is installed at one end of the screw rod 13 away from the bending rod 10, and the outer wall of the handle 14 is provided with anti-slip grooves;

[0044] It should be noted that the provision of the handle 14 not only facilitates the adjustment of the screw rod 13 , but also facilitates the pushing of the bracket 9 to flip and bend the workpiece.

[0045] During use: place the workpiece coated with paint on the carrier 2, and fix the end of the workpiece by pressing and fixing it with the nut of the clamping bolt 3, then screw the butterfly bolt 5 to the carrier 2, and use the clamping plate 4 to position the workpiece, and rotate the screw 13 to make the adjustment column head 11 slide with the adjustment hole 12, and adjust the position of the bending rod 10 so that the bending rod 10 corresponds to the workpiece and abuts against the lower surface of the workpiece, and use the shaft rod 7 to rotate the bracket 9 so that the workpiece abuts against the shaft rod 7 and bends, and finally remove the workpiece to check whether the coating on the workpiece is cracked or peeled off.

[0046] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A coating film bending test device, comprising a base (1) and a carrier (2) integrally formed on the upper surface of the base (1), Features: A clamping bolt (3) is screwed onto the edge of the upper surface of the carrier (2); A clamping plate (4) is mounted on one side of the clamping bolt (3), and butterfly bolts (5) threadedly connected to the carrier (2) are mounted on both ends of the clamping plate (4); The edge of the base (1) away from the clamping bolt (3) is symmetrically fixedly connected with ear plates (6), and the ear plates (6) are detachably connected with shaft rods (7); A bracket (9) having a U-shaped structure is rotatably connected to the shaft (7), a bending rod (10) is installed on the inner side of the bracket (9), and adjustment columns (11) are integrally formed at both ends of the bending rod (10), and an adjustment hole (12) that is clearance-matched with the adjustment column (11) is formed on the side wall of the bracket (9), a screw rod (13) is screwed to the end of the bracket (9), and one end of the screw rod (13) is rotatably connected to the bending rod (10).

2. A coating film bending test device according to claim 1, Features: An angular scale (16) is provided on the outer facade of one of the ear plates (6), and a plurality of the angular scales (16) are provided at radial positions of the shaft (7).

3. A coating film bending test device according to claim 2, Features: A pointer (15) is fixedly connected to the outer wall of the bracket (9) corresponding to the angle scale (16), and the pointer (15) is arranged in an L-shaped structure.

4. A coating film bending test device according to claim 1, Features: Both ends of the shaft rod (7) are provided with locking sleeves (8) that abut against the ear plates (6), and the inner wall of the locking sleeve (8) is provided with an internal threaded portion.

5. A coating film bending test device according to claim 4, Features: External threaded portions are provided on the outer walls at both ends of the shaft rod (7), and the external threaded portions are threadedly connected to the internal threaded portions.

6. A coating film bending test device according to claim 1, Features: An axial hole is provided at the junction of the bracket (9) and the shaft rod (7), and the inner diameter of the axial hole is matched to the outer diameter of the shaft rod (7).

7. A coating film bending test device according to claim 1, Features: A handle (14) is mounted on one end of the screw rod (13) away from the bending rod (10), and an outer wall of the handle (14) is provided with anti-slip grooves.

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