Thin film tensile resistance detection equipment

Abstract

The utility model discloses equipment for detecting tensile strength of a thin film, and belongs to the technical field of equipment for thin film detection. Comprising a detection table and a supporting frame. The fixed plate is fixedly arranged on one side of the detection table, and the stretching plate corresponding to the fixed plate is arranged on the other side of the detection table in a sliding manner; clamping frames used for fixing a film are fixedly connected to the side faces of the fixing plate and the stretching plate, and clamping assemblies are arranged in the clamping frames; a supporting plate fixedly connected with the detection table is arranged on one side of the stretching plate, and the stretching plate is connected with the supporting plate through an elastic detection structure; the negative pressure communicating assembly is arranged below the clamping frame, a negative pressure hole is formed in the position, used for fixing the film, in the clamping frame, and the negative pressure machine communicates with the interior of the clamping frame through the negative pressure communicating assembly and the negative pressure hole. By means of mutual cooperation of the negative pressure machine and the clamping assembly, the problem that wrinkles are aggravated during fixed clamping due to the wrinkles of the thin film can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model provides a kind of film tensile detection equipment, belong to film detection equipment technical field. BACKGROUND

[0002] In modern industrial production, film as an important material, is widely used in packaging, electronics, medical, agricultural and other fields. The quality and performance of film is directly related to the safety and service life of product. Among them, tensile property is an important index to evaluate film material, which reflects the ductility and strength of film under stress.

[0003] In the tensile detection of film, the film is stretched under the condition of being fixed at both ends, and the deformation and critical failure value of the film under different tensile forces are observed and detected, so that the tensile detection performance can be analyzed. When the film is fixed at both ends, the film is soft, and wrinkles and edge lifting are easily caused during transportation. The wrinkles are not easy to be flattened, and the clamping force is not uniform at the fixed position when the film is clamped by the clamping structure, which affects the tensile detection effect of the film. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model is that when the film is stretched and detected, wrinkles easily cause uneven clamping force when the film is fixed at both ends, which affects the tensile detection effect of the film.

[0005] In order to solve the above problems, the utility model provides a technical scheme: a film tensile detection equipment, which comprises a detection table, a support frame fixedly connected to the detection table, and a film to be detected located in the support frame; further comprising:

[0006] A fixed plate, a stretching plate and a clamping frame are provided. The fixed plate is fixedly arranged on one side of the detection table, and the stretching plate corresponding to the fixed plate is slidably arranged on the other side of the detection table. The fixed plate and the stretching plate are both fixedly connected with clamping frames for fixing the film, and the clamping frames are provided with clamping assemblies. One side of the stretching plate is provided with a support plate fixedly connected with the detection table, and the stretching plate and the support plate are connected through an elastic detection structure.

[0007] A negative pressure communication assembly and a negative pressure machine are provided. The negative pressure communication assembly is arranged below the clamping frame. The position for fixing the film in the clamping frame is provided with a negative pressure hole. The negative pressure machine is in communication with the inside of the clamping frame through the negative pressure communication assembly and the negative pressure hole.

[0008] As an improvement, the negative pressure communication assembly comprises a fixed block and a negative pressure groove. The fixed block is fixedly connected below the clamping frame, and the negative pressure groove is arranged in the fixed block. The negative pressure machine is in communication with the negative pressure groove, and the negative pressure groove is in communication with all the negative pressure holes. The bottom of the fixed block is provided with a ventilation hole in communication with the negative pressure groove.

[0009] As improved, the elastic detection structure comprises a pressure sensor, a sliding rod, and a spring, the sliding rod is fixedly connected to one side of the stretching plate and slides through the support plate, the pressure sensor is fixedly arranged on the support plate, and the spring is located between the stretching plate and the support plate and is sleeved on the sliding rod.

[0010] As improved, the clamping assembly comprises a screw rod and a pressing plate, the screw rod is rotationally arranged in the clamping frame, the pressing plate corresponding to the film placement position is slidingly arranged in the clamping frame, and the pressing plate is threadedly connected to the screw rod.

[0011] As improved, the pressing plate is a cuboid structure corresponding to the inner wall of the clamping frame, and the pressing plate and the inner wall of the clamping frame are mutually attached; a rubber pad is fixedly arranged below the pressing plate.

[0012] As improved, a sliding groove is arranged in the detection table, an electric telescopic rod is arranged in the sliding groove, and a sliding plate is fixedly connected to the working end of the electric telescopic rod; a guide groove is arranged on the upper surface of the detection table and communicates with the sliding groove, and the sliding plate is fixedly connected to the stretching plate through the guide groove.

[0013] As improved, a terminal circuit connected with the pressure sensor is arranged on the support frame; a downward-facing high-definition camera is arranged in the support frame, and the high-definition camera is circuit-connected with the terminal.

[0014] The thin film tensile detection equipment has the advantages that:

[0015] The negative pressure communication assembly is arranged below the clamping frame, the negative pressure machine is communicated with the inside of the clamping frame through the negative pressure communication assembly and the negative pressure hole, the film can be fixed and positioned in the clamping frame by the suction force of the negative pressure through the negative pressure machine and the negative pressure hole, the wrinkles and the curled edges can be flattened by the suction force of the uniformly distributed negative pressure holes, the film is clamped by the clamping assembly at this time, the problem of uneven clamping force caused by clamping wrinkles can be avoided, and the tensile detection effect of the film is not affected. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective view of the thin film tensile detection equipment.

[0017] Figure 2 It is a perspective view of the thin film tensile detection equipment from another angle.

[0018] Figure 3 It is a sectional view of the clamping frame and the fixing block of the thin film tensile detection equipment.

[0019] Figure 4 It is a partial sectional view of the detection table of the thin film tensile detection equipment.

[0020] 1, detection platform; 2, support frame; 3, terminal; 4, clamping frame; 5, stretching plate; 6, fixed block; 7, negative pressure machine; 8, fixed plate; 9, high-definition camera; 10, screw; 11, pressing plate; 12, rubber pad; 13, negative pressure hole; 14, air hole; 15, negative pressure groove; 16, sliding groove; 17, sliding plate; 18, electric telescopic rod; 19, pressure sensor; 20, support plate; 21, sliding rod; 22, spring; 23, guide groove. DETAILED DESCRIPTION

[0021] The utility model is further explained in connection with the drawings below.

[0022] According to Figures 1-4 The utility model provides a kind of film tensile detection equipment: including detection platform 1, detection platform 1 is fixedly connected with support frame 2, and the film to be detected is located in support frame 2;Further include:

[0023] Fixed plate 8, stretching plate 5, clamping frame 4, fixed plate 8 is fixedly set in detection platform 1 side, and the stretching plate 5 corresponding with fixed plate 8 is slidably set in the other side of detection platform 1;Fixed plate 8, stretching plate 5 side are fixedly connected with the clamping frame 4 for fixing film, and clamping assembly is arranged in clamping frame 4;Stretching plate 5 side is provided with the support plate 20 fixedly connected with detection platform 1, and stretching plate 5 and support plate 20 are connected by elastic detection structure;

[0024] Negative pressure communication component and negative pressure machine 7, negative pressure communication component is set in clamping frame 4 below, and the position for fixing film in clamping frame 4 is provided with negative pressure hole 13, and negative pressure machine 7 is communicated with the inside of clamping frame 4 by negative pressure communication component and negative pressure hole 13.

[0025] As Figure 3 Indicated, negative pressure communication component includes fixed block 6, negative pressure groove 15, fixed block 6 is fixedly connected in clamping frame 4 below, and negative pressure groove 15 is arranged in fixed block 6;Negative pressure machine 7 is communicated with negative pressure groove 15, and negative pressure groove 15 is communicated with all negative pressure holes 13;Utilize negative pressure machine 7 and negative pressure groove 15 negative pressure hole 13, can generate negative pressure to the position of film placement, to tightly adsorb film, can play the role of relieving wrinkle, edge, and fixed block 6 bottom is provided with the air hole 14 communicated with negative pressure groove 15, can guarantee the normal work of negative pressure machine 7.

[0026] As Figure 4 Indicated, elastic detection structure includes pressure sensor 19, sliding rod 21, spring 22, sliding rod 21 is fixedly connected on one side of stretching plate 5, and sliding rod 21 slides through support plate 20;Pressure sensor 19 is fixedly set on support plate 20;Spring 22 is located between stretching plate 5, support plate 20, and spring 22 is sleeved on sliding rod 21.

[0027] As Figure 3 shown, the clamping assembly includes a screw rod 10, a pressing plate 11, the screw rod 10 is rotationally arranged in the clamping frame 4, the pressing plate 11 corresponding to the film placement position is slidingly arranged in the clamping frame 4, and the pressing plate 11 is threadedly connected to the screw rod 10. The pressing plate 11 is a cuboid structure corresponding to the inner wall of the clamping frame 4, and the pressing plate 11 and the inner wall of the clamping frame 4 are mutually attached, when the screw rod 10 rotates, the rotation of the screw rod 10 can be converted into the movement of the pressing plate 11; the rubber pad 12 is fixedly arranged below the pressing plate 11, which can increase the friction between the pressing plate 11 and the film.

[0028] As Figure 4 shown, a chute 16 is arranged in the detection table 1, an electric telescopic rod 18 is arranged in the chute 16, and the working end of the electric telescopic rod 18 is fixedly connected with a sliding plate 17; a guide groove 23 is arranged on the upper surface of the detection table 1 and communicates with the chute 16, and the sliding plate 17 is fixedly connected with the stretching plate 5 through the guide groove 23, and the electric telescopic rod 18 can drive the sliding plate 17 to slide, thereby driving the stretching plate 5 to slide.

[0029] As Figure 1 , 2 shown, the support frame 2 is provided with a terminal 3 connected with the circuit of the pressure sensor 19; a downward-facing high-definition camera 9 is arranged in the support frame 2, and the high-definition camera 9 is connected with the terminal 3 in circuit, which can monitor the stretching state of the film.

[0030] The principle of the utility model

[0031] As Figure 1 , 2 shown, when using the present application, the two ends of the film are placed in the clamping frame 4, and the film covers the negative pressure hole 13; the negative pressure machine 7 is started, and the negative pressure machine 7 is used to generate negative pressure attraction force in the negative pressure groove 15 and the negative pressure hole 13, so as to adsorb the film, at this time, the film can be manually assisted to spread, and the edge lifting and wrinkles can be attached to the inner wall of the clamping frame 4 under the condition of negative pressure attraction, so as to play a role of flattening the film and increasing the attachment area of the film and the inner wall of the clamping frame 4. As Figure 3 shown, at this time, the screw rod 10 is twisted to drive the pressing plate 11 and the rubber pad 12 to move downward, until the pressing plate 11 and the rubber pad 12 press on the film, at this time, the film is prevented from being further wrinkled during the fixing and clamping process due to the wrinkles and edge lifting of the film itself, and then the negative pressure machine 7 is closed.

[0032] After the two sides of the film are fixed, as Figure 4As shown, the electric telescopic rod 18 is started to drive the stretching plate 5 to slide away from the fixed plate 8; firstly, the film is pre-stretched to make the film in just tensioned state; then, the film is formally stretched, the stretching plate 5 slides to compress the spring 22, the value of the spring 22 to the pressure sensor 19 is changed, at this time, the high-definition camera 9 is used to shoot and record the whole stretching process, the change value of the pressure sensor 19 at the moment when the film is damaged is recorded, that is, the maximum stretching force that the film can bear.

[0033] The above describes the utility model and its implementation mode, this kind of description has no limit, the embodiment of the utility model shown in the drawing is only one, the actual structure is not limited to this. In general, if the ordinary skilled person in the art is inspired, without departing from the utility model creation tenet, the similar structure mode and embodiment that is not creative design with this technical scheme, all should belong to the protection scope of the utility model.

Claims

1. A film tensile detection device, comprising a detection table (1), a support frame (2) is fixedly connected on the detection table (1), and a film to be detected is located in the support frame (2); characterized in that, Also include: The fixed plate (8) is fixedly arranged on one side of the detection table (1), and the stretching plate (5) corresponding to the fixed plate (8) is slidingly arranged on the other side of the detection table (1); The fixed plate (8), the stretching plate (5) side are all fixedly connected with the clamping frame (4) for fixing the film, the clamping frame (4) is provided with clamping assembly; The stretching plate (5) is provided with a support plate (20) fixedly connected with the detection table (1) on one side, and the stretching plate (5) and the support plate (20) are connected through the elastic detection structure; The negative pressure communication assembly and the negative pressure machine (7) are arranged below the clamping frame (4), the position for fixing the film in the clamping frame (4) is provided with a negative pressure hole (13), and the negative pressure machine (7) is communicated with the inside of the clamping frame (4) through the negative pressure communication assembly and the negative pressure hole (13).

2. A film tensile detection apparatus according to claim 1, wherein: The negative pressure communication assembly includes a fixed block (6) and a negative pressure groove (15), the fixed block (6) is fixedly connected below the clamping frame (4), and the negative pressure groove (15) is arranged in the fixed block (6); The negative pressure machine (7) is communicated with the negative pressure groove (15), and the negative pressure groove (15) is communicated with all the negative pressure holes (13); The bottom of the fixed block (6) is provided with a ventilation hole (14) communicated with the negative pressure groove (15).

3. A film tensile detection apparatus as claimed in claim 1, wherein: The elastic detection structure includes a pressure sensor (19), a sliding rod (21) and a spring (22), the sliding rod (21) is fixedly connected on one side of the stretching plate (5), and the sliding rod (21) slides through the support plate (20); The pressure sensor (19) is fixedly arranged on the support plate (20); The spring (22) is located between the stretching plate (5) and the support plate (20), and the spring (22) is sleeved on the sliding rod (21).

4. A film tensile detection apparatus according to claim 1, wherein: The clamping assembly includes a screw rod (10) and a pressing plate (11), the screw rod (10) is rotatably arranged in the clamping frame (4), the pressing plate (11) corresponding to the film placement position is slidingly arranged in the clamping frame (4), and the pressing plate (11) is threadedly connected to the screw rod (10).

5. A film tensile detection apparatus as claimed in claim 4, wherein: The pressing plate (11) is a cuboid structure corresponding to the inner wall of the clamping frame (4), and the pressing plate (11) and the clamping frame (4) are mutually attached; The rubber pad (12) is fixedly arranged below the pressing plate (11).

6. A film tensile detection apparatus as claimed in claim 1, wherein: The detection table (1) is provided with a sliding groove (16), the sliding groove (16) is provided with an electric telescopic rod (18), and the working end of the electric telescopic rod (18) is fixedly connected with a sliding plate (17); The upper surface of the detection table (1) is provided with a guide groove (23) communicated with the sliding groove (16), and the sliding plate (17) passes through the guide groove (23) and is fixedly connected with the stretching plate (5).

7. A film tensile detection apparatus as claimed in claim 1, wherein: The support frame (2) is provided with a terminal (3) circuit-connected with the pressure sensor (19); The support frame (2) is provided with a downward-facing high-definition camera (9), and the high-definition camera (9) is circuit-connected with the terminal (3).

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