Tensile test device for detecting toughness and tensity of film

Abstract

The utility model discloses a tensile test device for detecting the toughness and the tensity of a film, and belongs to the field of film detection devices. A tensile test device for detecting toughness and tensity of a film comprises a base, an I-shaped frame, a mounting frame and scale marks are sequentially fixed to the upper side of the base, and a bidirectional driving mechanism is fixed to one end of the mounting frame; according to the utility model, through the cooperation of the bidirectional driving mechanism, the clamping assembly, the reciprocating driving assembly, the pressing roller and the scale marks, the comprehensive detection of the toughness of different parts of the film is realized, the bidirectional driving mechanism can control the opening degree of the film, and the reciprocating driving assembly enables the pressing roller to carry out pressing detection at different positions of the upper surface of the film; in addition, due to the arrangement of the scale marks, a detection part can be accurately positioned conveniently, the tension and pressure sensor is combined to monitor the stress condition of the thin film, the toughness and the tension degree of the thin film can be detected, and diversity of the detection process is achieved.

Description

Technical Field

[0001] The utility model relates to the field of film detection devices, in particular to a tensile test device for detecting film toughness and tension. Background Art

[0002] Film is a thin, soft, transparent sheet, usually made of plastic, adhesive, rubber or other materials. In science, it can also refer to a two-dimensional material formed by atoms, molecules or ions deposited on the surface of a substrate. Since films are widely used in electronics, machinery, printing and other industries, their performance requirements are extremely high, so toughness testing is very important. Toughness testing can evaluate the tear and crack resistance of films under specific conditions, provide a basis for material performance evaluation, and ensure that the film can stably and reliably perform its functions in practical applications.

[0003] For example, the patent number is CN216386582U, and its name is a device for detecting the toughness of polyester film. In this patent, by combining the first rotating drum and the second rotating drum, when the toughness of the polyester film is tested, the polyester film can be prevented from being broken when it comes into contact with the detection device under high-intensity tension, so as to ensure the accuracy of the toughness test of the polyester film.

[0004] After in-depth research and analysis, we found that the currently cited patent has obvious deficiencies in film toughness testing. Specifically, the patent is limited to extrusion testing at the center of the film, and cannot perform the same extrusion operation on both sides and various parts of the film. This limitation leads to the singleness of the film toughness test results and cannot fully reflect the performance of the film under stress conditions at different parts. Therefore, it is necessary to improve the deficiencies and defects of the existing technology. Utility Model Content

[0005] The purpose of the present invention is to provide a tensile testing device for detecting the toughness and tension of a film, so as to solve the problems raised in the background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A tensile testing device for detecting the toughness and tension of a film comprises: a base, an I-shaped frame, an installation frame, and a scale line are fixed to the upper side of the base in sequence, two symmetrically arranged U-shaped sliders are slidably connected in the installation frame, a bidirectional driving mechanism is fixed to one end of the installation frame for driving the two U-shaped sliders to move horizontally, a clamping assembly is fixed to the upper side of the U-shaped slider, a reciprocating driving assembly is fixed to one end of the I-shaped frame, a power output end of the reciprocating driving assembly is transmission-connected to an L-shaped member in the I-shaped frame, the L-shaped member is slidably connected in the I-shaped frame, a pressing mechanism is fixed to the end of the horizontal section of the L-shaped member, a pressing roller is fixed to the movable end at the bottom of the pressing mechanism, and the pressing roller is located directly above the installation frame.

[0008] Furthermore, the bidirectional driving mechanism includes a motor 1, a bidirectional screw rod, and a round rod 1. The motor 1 is fixed to the outside of the mounting frame, the bidirectional screw rod is rotatably connected to the mounting frame, the power output end of the motor 1 is fixedly connected to the bidirectional screw rod through a coupling, the bidirectional screw rod is threadedly connected to a U-shaped slider, a total of two round rods are fixed in the mounting frame and are respectively located on both sides of the bidirectional screw rod, and the round rod 1 maintains a sliding connection with the U-shaped slider.

[0009] Furthermore, the clamping assembly is provided with a fixed plate, a rotating plate and a U-shaped frame, the fixed plate and the U-shaped frame are fixed to the upper side of the U-shaped slider, the rotating plate is rotatably connected to one end of the fixed plate through a shaft sleeve, a hydraulic cylinder 1 is fixed on the U-shaped frame, a U-shaped part is fixed on the rotating plate in the direction close to the U-shaped frame, the U-shaped part and the movable rod at the movable end of the hydraulic cylinder 1 are connected by a connecting rod, and the connecting parts between the connecting rod and the U-shaped part and the connecting rod and the movable rod at the movable end of the hydraulic cylinder 1 are all hinged.

[0010] Furthermore, the reciprocating drive assembly includes a second motor and a screw. The second motor is fixed to the outside of the I-shaped frame. The power output end of the second motor is fixedly connected to the screw through a coupling. The screw is rotatably connected to the I-shaped frame and is threadedly connected to the bottom of the L-shaped part.

[0011] Furthermore, the reciprocating drive assembly also includes a second round rod and a protrusion. The second round rod is fixed in the I-shaped frame and remains parallel to the screw rod. The protrusion is fixed to one side of the L-shaped part and maintains a sliding connection with the second round rod.

[0012] Furthermore, the pressing mechanism includes a second hydraulic cylinder and a tooling frame. The second hydraulic cylinder is fixed to the upper side of the L-shaped member. The movable end of the second hydraulic cylinder is fixedly connected to the upper side of the tooling frame through a movable rod. The pressing roller is rotatably connected to the tooling frame.

[0013] Furthermore, a plurality of vertical round rods are fixed to the upper side of the tooling outer frame, and the vertical round rods penetrate the round holes on the L-shaped member along the vertical direction and maintain a sliding connection with the L-shaped member along the vertical direction.

[0014] Compared with the prior art, the utility model provides a tensile test device for detecting film toughness and tension, which has the following beneficial effects:

[0015] In the utility model, a comprehensive test of the toughness of different parts of the film is achieved through the cooperation of a bidirectional driving mechanism, a clamping assembly, a reciprocating driving assembly, a lower pressure roller and scale lines. The bidirectional driving mechanism can control the degree of opening of the film, and the reciprocating driving assembly enables the lower pressure roller to perform downward pressure detection at different positions on the upper surface of the film, combined with the lower pressure mechanism to provide precise pressure control. In addition, the setting of the scale lines facilitates accurate positioning of the detection part, and combined with the tensile pressure sensor to monitor the stress condition of the film, the toughness and tension of the film can be detected, thereby achieving diversity in the detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front structural schematic diagram of a tensile test device for detecting film toughness and tension proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the top view of a tensile test device for detecting film toughness and tension proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the U-shaped slider structure of a tensile test device for detecting film toughness and tension proposed by the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of a reciprocating drive assembly of a tensile test device for detecting film toughness and tension proposed by the utility model;

[0020] Figure 5 This is a schematic diagram of the bidirectional driving mechanism structure of a tensile test device for detecting film toughness and tension proposed by the utility model;

[0021] Figure 6 A method for detecting film toughness and tension proposed by the utility model Figure 3 Schematic diagram of the structure of the tensile test device in part A.

[0022] In the figure: 1. base; 2. mounting frame; 3. bidirectional driving mechanism; 31. motor 1; 32. bidirectional screw rod; 33. round rod 1; 4. U-shaped slider; 5. clamping assembly; 51. fixed plate; 52. rotating plate; 53. U-shaped frame; 54. hydraulic cylinder 1; 55. U-shaped part; 56. connecting rod; 6. tool frame; 7. reciprocating driving assembly; 71. motor 2; 72. screw rod; 73. round rod 2; 74. bump; 8. L-shaped part; 9. pressing mechanism; 91. hydraulic cylinder 2; 92. tooling frame; 93. vertical round rod; 10. pressing roller; 11. scale line. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Embodiment 1:

[0026] Reference Figure 1-6 A tensile testing device for detecting the toughness and tension of a film comprises: a base 1, an I-shaped frame 6, an installation frame 2, and a scale line 11 are fixed to the upper side of the base 1 in sequence, two symmetrically arranged U-shaped sliders 4 are slidably connected in the installation frame 2, a bidirectional driving mechanism 3 is fixed at one end of the installation frame 2, which is used to drive the two U-shaped sliders 4 to move horizontally, a clamping assembly 5 is fixed on the upper side of the U-shaped slider 4, a reciprocating driving assembly 7 is fixed at one end of the I-shaped frame 6, a power output end of the reciprocating driving assembly 7 is transmission-connected to an L-shaped member 8 in the I-shaped frame 6, the L-shaped member 8 is slidably connected in the I-shaped frame 6, a pressing mechanism 9 is fixed at the end of the horizontal section of the L-shaped member 8, a pressing roller 10 is fixed at the movable end at the bottom of the pressing mechanism 9, and the pressing roller 10 is located directly above the installation frame 2.

[0027] like Figure 5As shown, the bidirectional driving mechanism 3 includes a motor 31, a bidirectional screw rod 32, and a round rod 33. The motor 31 is fixed to the outside of the mounting frame 2, and the bidirectional screw rod 32 is rotatably connected to the mounting frame 2. The power output end of the motor 31 is fixedly connected to the bidirectional screw rod 32 through a coupling, and the bidirectional screw rod 32 is connected to the U-shaped slider 4 through threads. A total of two round rods 33 are fixed in the mounting frame 2 and are respectively located on both sides of the bidirectional screw rod 32. The round rod 33 maintains a sliding connection with the U-shaped slider 4.

[0028] like Figure 3 , Figure 6 As shown, the clamping assembly 5 is provided with a fixed plate 51, a rotating plate 52, and a U-shaped frame 53. The fixed plate 51 and the U-shaped frame 53 are fixed to the upper side of the U-shaped slider 4. The rotating plate 52 is rotatably connected to one end of the fixed plate 51 through a shaft sleeve. A hydraulic cylinder 54 is fixed on the U-shaped frame 53. A U-shaped part 55 is fixed to the rotating plate 52 in the direction close to the U-shaped frame 53. The U-shaped part 55 and the movable rod at the movable end of the hydraulic cylinder 54 are connected by a connecting rod 56. The connecting parts of the connecting rod 56 and the U-shaped part 55 and the connecting rod 56 and the movable rod at the movable end of the hydraulic cylinder 54 are all hinged.

[0029] like Figure 4 As shown, the reciprocating drive assembly 7 includes a second motor 71 and a screw 72. The second motor 71 is fixed to the outside of the I-shaped frame 6. The power output end of the second motor 71 is fixedly connected to the screw 72 through a coupling. The screw 72 is rotatably connected to the I-shaped frame 6 and is connected to the bottom of the L-shaped member 8 through a threaded connection.

[0030] Embodiment 2:

[0031] The difference between this embodiment and embodiment 1 is that:

[0032] like Figure 4 As shown, the reciprocating drive assembly 7 also includes a second round rod 73 and a protrusion 74. The second round rod 73 is fixed in the I-shaped frame 6 and remains parallel to the screw rod 72. The protrusion 74 is fixed to one side of the L-shaped member 8 and maintains a sliding connection with the second round rod 73.

[0033] like Figure 4 As shown, the pressing mechanism 9 includes a hydraulic cylinder 91 and a tooling frame 92. The hydraulic cylinder 91 is fixed to the upper side of the L-shaped member 8. The movable end of the hydraulic cylinder 91 is fixedly connected to the upper side of the tooling frame 92 via a movable rod. The pressing roller 10 is rotatably connected to the tooling frame 92.

[0034] like Figure 4 As shown, a plurality of vertical round rods 93 are fixed on the upper side of the tooling outer frame 92 . The vertical round rods 93 pass through the round holes on the L-shaped member 8 along the vertical direction and maintain a sliding connection with the L-shaped member 8 along the vertical direction.

[0035] Working principle: In the working state of the utility model, the two ends of the film to be tested are first clamped and fixed by the clamping assembly 5, specifically, as follows: Figure 3 , Figure 6 As shown, the hydraulic cylinder 1 54 on the clamping assembly 5 on one side is started, and the movable rod at the movable end of the hydraulic cylinder 1 54 is moved up and retracted. Through the mutual rotation cooperation between the connecting rod 56 and the U-shaped member 55, the angle between the rotating plate 52 and the fixed plate 51 is gradually reduced until the two are tightly attached to each other to complete the fixation of the end of the film to be detected. The clamping assembly 5 on the other side also completes the clamping and fixing in the same way. Subsequently, the motor 1 31 on the bidirectional drive mechanism 3 is started to drive the bidirectional screw rod 32 to rotate, and the bidirectional screw rod 32 drives the U-shaped sliders 4 on both sides to move backwards through the thread, thereby further making the film clamped at the upper end gradually open until the film is opened to a horizontal state. Next, the motor 2 71 on the reciprocating drive assembly 7 is started to drive the screw rod 72 to rotate, and the screw rod 72 drives the L-shaped member 8 to move through the thread. The reciprocating movement of the L-shaped member 8 can change the end of the L-shaped member 8. The position of the lower pressure roller 10 can realize the downward pressure detection of different parts of the upper surface of the film. In the process of changing the position of the lower pressure roller 10, the part of the film that needs to be detected can be accurately located in combination with the value on the scale line 11, which provides convenience for the fixed-point detection of the film. During the detection process, the hydraulic cylinder 2 91 on the downward pressure mechanism 9 is started to use the extension of the movable rod to drive the lower pressure roller 10 to continue to press down until the lower pressure roller 10 squeezes the film and deforms it; in addition to using the lower pressure roller 10 to press down on the upper surface of the film, the device as a whole can also be continuously started with the help of the motor 1 31 on the two-way drive mechanism 3 to drive the U-shaped sliders 4 on both sides to continue to move back to back until the film is pulled and deformed in the horizontal direction; in the process of using the above-mentioned structure to detect the toughness of different positions of the film, the inspector can also use the tensile pressure sensor to detect the stress condition of the film. This is the existing technology and will not be elaborated here.

Claims

1. A tensile test device for detecting film toughness and tension, comprising: A base (1) is characterized in that an I-shaped frame (6), an installation frame (2) and a scale line (11) are fixed on the upper side of the base (1) in sequence; two symmetrically arranged U-shaped sliders (4) are slidably connected in the installation frame (2); a bidirectional driving mechanism (3) is fixed at one end of the installation frame (2) for driving the two U-shaped sliders (4) to move horizontally; a clamping assembly (5) is fixed on the upper side of the U-shaped slider (4); a reciprocating driving assembly (7) is fixed at one end of the I-shaped frame (6); a power output end of the reciprocating driving assembly (7) is transmission-connected to an L-shaped member (8) in the I-shaped frame (6); the L-shaped member (8) is slidably connected in the I-shaped frame (6); a pressing mechanism (9) is fixed at the end of the horizontal section of the L-shaped member (8); a pressing roller (10) is fixed at the movable end at the bottom of the pressing mechanism (9); and the pressing roller (10) is located directly above the installation frame (2).

2. A tensile testing device for detecting film toughness and tension according to claim 1, characterized in that: The bidirectional driving mechanism (3) comprises a motor (31), a bidirectional screw (32), and a round rod (33); the motor (31) is fixed to the outside of the installation frame (2); the bidirectional screw (32) is rotatably connected to the inside of the installation frame (2); the power output end of the motor (31) is fixedly connected to the bidirectional screw (32) via a coupling; the bidirectional screw (32) is connected to a U-shaped slider (4) via threads; two round rods (33) are fixed to the inside of the installation frame (2) and are respectively located on both sides of the bidirectional screw (32); and the round rod (33) is slidably connected to the U-shaped slider (4).

3. A tensile testing device for detecting film toughness and tension according to claim 1, characterized in that: The clamping assembly (5) is provided with a fixed plate (51), a rotating plate (52) and a U-shaped frame (53); the fixed plate (51) and the U-shaped frame (53) are fixed to the upper side of the U-shaped slider (4); the rotating plate (52) is rotatably connected to one end of the fixed plate (51) via a shaft sleeve; a hydraulic cylinder (54) is fixed to the U-shaped frame (53); a U-shaped member (55) is fixed to the rotating plate (52) in a direction close to the U-shaped frame (53); the U-shaped member (55) is connected to a movable rod at a movable end of the hydraulic cylinder (54) via a connecting rod (56); and the connecting parts between the connecting rod (56) and the U-shaped member (55) and between the connecting rod (56) and the movable rod at the movable end of the hydraulic cylinder (54) are both hinged.

4. A tensile testing device for detecting film toughness and tension according to claim 1, characterized in that: The reciprocating drive assembly (7) comprises a second motor (71) and a screw (72); the second motor (71) is fixed to the outside of the I-shaped frame (6); the power output end of the second motor (71) is fixedly connected to the screw (72) via a coupling; the screw (72) is rotatably connected to the inside of the I-shaped frame (6) and is connected to the bottom of the L-shaped member (8) via a thread.

5. A tensile testing device for detecting film toughness and tension according to claim 4, characterized in that: The reciprocating drive assembly (7) further comprises a second round rod (73) and a protrusion (74); the second round rod (73) is fixed in the I-shaped frame (6) and remains parallel to the screw rod (72); the protrusion (74) is fixed to one side of the L-shaped member (8) and remains in sliding connection with the second round rod (73).

6. A tensile testing device for detecting film toughness and tension according to claim 1, characterized in that: The pressing mechanism (9) comprises a second hydraulic cylinder (91) and a tooling outer frame (92); the second hydraulic cylinder (91) is fixed to the upper side of the L-shaped member (8); the movable end of the second hydraulic cylinder (91) is fixedly connected to the upper side of the tooling outer frame (92) via a movable rod; and the pressing roller (10) is rotatably connected to the tooling outer frame (92).

7. A tensile testing device for detecting film toughness and tension according to claim 6, characterized in that: A plurality of vertical round rods (93) are fixed on the upper side of the tooling outer frame (92); the vertical round rods (93) penetrate the round holes on the L-shaped member (8) in the vertical direction and maintain a sliding connection with the L-shaped member (8) in the vertical direction.

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