Film clamping head for film material tensile testing machine

Abstract

The utility model provides a film clamping head for a film material tensile testing machine, which comprises a film clamping seat, a film clamping head and a telescopic cylinder, the bottom of the film clamping seat is provided with a concave arc-shaped groove, the arc-shaped groove is provided with an arc-shaped recess, the arc-shaped groove extends towards the length direction of the film clamping seat, the two ends of the arc-shaped recess are aligned with the two ends of the arc-shaped groove, and the telescopic cylinder is arranged in the arc-shaped recess. The film clamping head is connected with the arc-shaped groove in a matched mode, an arc-shaped protruding portion is arranged at the position, corresponding to the arc-shaped concave position, of the film clamping head, the arc-shaped protruding portion is connected with the arc-shaped concave position in a matched mode, the film clamping head is provided with a sliding rod penetrating through the film clamping base, the film clamping base is provided with a linear bearing connected with the sliding rod in a matched mode, and an air cylinder shaft of the telescopic air cylinder is connected with the sliding rod. The film clamping head is suitable for tensile testing machines on the market at present, a hot melt adhesive film is fixed in an automatic film clamping mode, the hot melt adhesive film can be rapidly clamped, tensile testing is carried out, the efficiency of automatic clamping is higher than that of manual clamping, reliability is better, and the tensile testing efficiency of the hot melt adhesive film can be improved.

Description

Technical Field

[0001] This utility model relates to the field of membrane materials, and in particular to a membrane clamping head for a membrane tensile testing machine. Background Technology

[0002] After the hot melt adhesive film is produced, it needs to undergo a tensile test to ensure that its tensile properties meet the product qualification requirements. At present, a traditional tensile testing machine is used to test the tensile strength of the hot melt adhesive film. However, the problem with this tensile testing machine is that the process of fixing the two ends of the hot melt adhesive film is cumbersome. The clamps used are manually operated, which is not only time-consuming and labor-intensive, but also prone to problems such as the hot melt adhesive film not being clamped properly. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned problems. We provide a clamping head for a film tensile testing machine, which uses an automatic clamping method to fix the hot melt adhesive film, and has the advantages of better reliability and higher efficiency.

[0004] To achieve the above objectives, this utility model provides a clamping head for a membrane tensile strength testing machine, comprising a clamping base, a clamping head, and a telescopic cylinder. The bottom of the clamping base has an inwardly recessed arc-shaped groove, and an arc-shaped recess is provided on the arc-shaped groove. The arc-shaped groove extends along the length direction of the clamping base, and the two ends of the arc-shaped recess are aligned with the two ends of the arc-shaped groove. The clamping head fits into the arc-shaped groove, and the clamping head has an arc-shaped protrusion corresponding to the position of the arc-shaped recess. The arc-shaped protrusion fits into the arc-shaped recess. The clamping head has a sliding rod passing through the clamping base, and the clamping base is provided with a linear bearing that cooperates with the sliding rod. The cylinder shaft of the telescopic cylinder is connected to the sliding rod.

[0005] In one or more embodiments, the clamping head is provided with slide rods at its four corners, the four slide rods pass through the clamping seat and are connected to the movable seat, and the cylinder shaft of the telescopic cylinder is connected to the movable seat.

[0006] In one or more embodiments, the clamping seat is provided with two guide posts, which are located on both sides of the cylinder shaft, and the movable seat is provided with a slide block that is slidably connected to the guide posts.

[0007] In one or more embodiments, the arc-shaped recess is located at the middle of the arc-shaped groove, and there is an arc-shaped transition structure between the arc-shaped recess and the arc-shaped groove.

[0008] In one or more embodiments, the length of the arc-shaped groove is 5cm-20cm, the depth of the arc-shaped groove is 2cm-5cm, and the depth of the arc-shaped recess is 0.5cm-1.5cm.

[0009] Compared with the prior art, the advantages of this invention are: the clamping head is suitable for use in tensile testing machines currently on the market, and it uses an automatic clamping method to fix the hot melt adhesive film, which can quickly clamp the hot melt adhesive film and perform tensile testing. The efficiency of automatic clamping is higher than that of manual clamping, and the reliability is better, which helps to improve the efficiency of tensile testing of hot melt adhesive film. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of the clamping head of this utility model;

[0011] Figure 2 This is a cross-sectional view of the clamping head of this utility model. Detailed Implementation

[0012] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0013] Please refer to Figure 1-2 This embodiment provides a clamping head for a membrane tensile strength testing machine, comprising a clamping base 1, a clamping head 2, and a telescopic cylinder 3. The bottom of the clamping base has a concave arc-shaped groove 4, and an arc-shaped recess 5 is provided on the arc-shaped groove. The arc-shaped groove extends along the length of the clamping base, and the two ends of the arc-shaped recess 5 are aligned with the two ends of the arc-shaped groove 4. The clamping head 2 is fitted and connected to the arc-shaped groove. The clamping head has an arc-shaped protrusion 6 corresponding to the position of the arc-shaped recess, and the arc-shaped protrusion is fitted and connected to the arc-shaped recess. The clamping head 2 has a sliding rod 7 passing through the clamping base, and the clamping base has a sliding rod 7 for connecting with the sliding rod 7. The linear bearing 8 is connected to the rod. The cylinder shaft of the telescopic cylinder is connected to the slide rod. In use, the clamping head is separated from the clamping seat. After the hot melt adhesive film is passed through the area between the clamping head and the clamping seat, the telescopic cylinder drives the clamping head to connect with the arc-shaped groove. The hot melt adhesive film is clamped by the cooperation between the clamping head and the arc-shaped groove. The hot melt adhesive film is further clamped by the cooperation between the arc-shaped protrusion and the arc-shaped concave part, ensuring that the hot melt adhesive film is not easy to loosen. The advantage of using the arc-shaped structure is that it is not easy to cause structural damage to the hot melt adhesive film and can avoid the hot melt adhesive film from breaking at the clamping seat position.

[0014] The clamping head 2 is equipped with slide rods 7 at its four corners. The four slide rods pass through the clamping seat 1 and are connected to the movable seat 9. The multiple slide rods can ensure that the clamping head can move stably. The cylinder shaft of the telescopic cylinder 3 is connected to the movable seat, and the cylinder shaft is preferably connected to the middle position of the movable seat.

[0015] The clamping seat 1 is provided with two guide posts 10, which are located on both sides of the cylinder shaft. The movable seat 9 is provided with a slide block that is slidably connected to the guide posts. With the cooperation of the guide posts and the slide block, the movable seat can be moved more stably, thereby driving the clamping head to move more stably.

[0016] The arc-shaped recess 5 is located in the middle of the arc-shaped groove 4. There is an arc-shaped transition structure 11 between the arc-shaped recess and the arc-shaped groove. The arc-shaped transition structure can avoid the clamping marks that cause structural damage to the surface of the hot melt adhesive film when the clamping head is connected to the arc-shaped groove, or when the arc-shaped recess is connected to the arc-shaped protrusion.

[0017] In this embodiment, the length of the arc-shaped groove 4 is 5cm-20cm, preferably 15cm; the depth of the arc-shaped groove is 2cm-5cm, preferably 3cm; and the depth of the arc-shaped recess 5 is 0.5cm-1.5cm, preferably 1cm.

[0018] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. A clamping head for a membrane tensile strength testing machine, characterized in that: The device includes a clamping seat (1), a clamping head (2), and a telescopic cylinder (3). The bottom of the clamping seat has an inwardly concave arc-shaped groove (4), and an arc-shaped recess (5) is provided on the arc-shaped groove. The arc-shaped groove extends along the length of the clamping seat. The two ends of the arc-shaped recess (5) are aligned with the two ends of the arc-shaped groove (4). The clamping head (2) is fitted and connected to the arc-shaped groove. The clamping head has an arc-shaped protrusion (6) at the position corresponding to the arc-shaped recess. The arc-shaped protrusion is fitted and connected to the arc-shaped recess. The clamping head (2) has a slide rod (7) that passes through the clamping seat. The clamping seat is provided with a linear bearing (8) that is connected to the slide rod. The cylinder shaft of the telescopic cylinder is connected to the slide rod.

2. The clamping head for a membrane tensile testing machine according to claim 1, characterized in that: The clamping head (2) is provided with slide rods (7) at its four corners. The four slide rods pass through the clamping seat (1) and are connected to the movable seat (9). The cylinder shaft of the telescopic cylinder (3) is connected to the movable seat.

3. The clamping head for a membrane tensile testing machine according to claim 2, characterized in that: The clamping seat (1) is provided with two guide posts (10), which are located on both sides of the cylinder shaft. The movable seat (9) is provided with a slide seat that is slidably connected to the guide posts.

4. The clamping head for a membrane tensile testing machine according to claim 1, characterized in that: The arc-shaped recess (5) is located in the middle of the arc-shaped groove (4), and there is an arc-shaped transition structure (11) between the arc-shaped recess and the arc-shaped groove.

5. The clamping head for a membrane tensile testing machine according to claim 1, characterized in that: The length of the arc-shaped groove (4) is 5cm-20cm, the depth of the arc-shaped groove is 2cm-5cm, and the depth of the arc-shaped recess (5) is 0.5cm-1.5cm.

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