Plastic tension detection testing machine

Abstract

The utility model relates to the technical field of tension testing machines, in particular to a plastic tension detection testing machine which comprises a tension testing machine body, a testing support, an upper clamp and a lower clamp, the testing support is arranged at the top of the tension testing machine body, the upper clamp is arranged at the top of the testing support, and the lower clamp is connected to the inner side of the testing support in a sliding mode. Pay-off rods are rotationally connected to the two sides of the upper clamp correspondingly, auxiliary lines are wound around the outer walls of the pay-off rods, vertical blocks are fixedly connected to the other ends of the auxiliary lines, mounting frames are fixedly connected to the two sides of the lower clamp correspondingly, top plates are arranged at the tops of the mounting frames, and magnet blocks are slidably connected to the inner sides of the mounting frames. According to the utility model, the two auxiliary lines are respectively arranged at the middle parts of the upper clamp and the lower clamp in parallel and are used for auxiliary reference when a product is clamped, and the product is in a parallel state with the upper clamp and the lower clamp, so that the product tension detection effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tension testing machines, in particular to a plastic tension testing machine. Background Art

[0002] With the continuous development of society, the development of various industries is also deepening. Plastics are also important daily necessities in people's production. They need to be subjected to tensile tests before processing and use, so corresponding plastic tensile testing machines are needed.

[0003] At present, when a plastic tensile testing machine is used, the upper and lower clamps are used to fix the product. However, when testing existing plastic strip products, the product is manually fixed on the upper and lower clamps. It is difficult to ensure that the product is parallel to the upper and lower clamps by manual inspection. If the product is tilted, the stress-bearing part will be affected, which will affect the product tensile data. Utility Model Content

[0004] The utility model aims to provide a plastic tensile testing machine to solve the problem in the above-mentioned background technology that when testing existing plastic strip products, the products are manually fixed on upper and lower clamps. It is difficult to ensure that the products are parallel to the upper and lower clamps by manual inspection. If the product is tilted, the stress-bearing part will be affected, which will affect the product tensile data.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: including a tensile testing machine body, a test bracket, an upper clamp and a lower clamp, wherein the test bracket is arranged on the top of the tensile testing machine body, the upper clamp is arranged on the top of the test bracket, and the lower clamp is slidably connected to the inner side of the test bracket; the upper clamp is rotatably connected with a wire-paying rod on both sides, an auxiliary wire is wound around the outer wall of the wire-paying rod, and the other end of the auxiliary wire is fixedly connected with a vertical block, the lower clamp is fixedly connected with a mounting frame on both sides, a top plate is arranged on the top of the mounting frame, and a magnet block is slidably connected to the inner side of the mounting frame, and the magnet blocks are magnetically connected to the vertical blocks of the top plate respectively.

[0006] Preferably, one end of the pay-off rod is fixedly connected with a rotating head, a rotating groove is opened on one side of the upper clamp, one end of the rotating head is inserted into the rotating groove, a friction plate is arranged between the rotating head and the upper clamp, and the friction plate is a metal anti-slip pad.

[0007] Preferably, guide blocks are fixedly connected to both ends of the magnet block, and guide grooves matching the guide blocks are provided on both inner sides of the mounting frame, and one end of the guide block is inserted into the guide groove.

[0008] Preferably, one end of the auxiliary line is fixedly connected to the wire-releasing rod.

[0009] Preferably, the top plate and the vertical block are respectively made of magnetically attractive metal iron.

[0010] Preferably, after the vertical block is in contact with the top plate and laid flat, the auxiliary line is parallel to the test bracket.

[0011] Compared with the prior art, the beneficial effects of the utility model are: the two wire-releasing rods are rotated clockwise respectively to move the two vertical blocks downward. When the two vertical blocks move to the top plate respectively, the rotation is stopped, and then the magnet block is pushed upward to magnetically fix the vertical blocks, so that the two auxiliary lines are respectively located in parallel in the middle part of the upper clamp and the lower clamp, and serve as auxiliary reference when clamping the product. The product is in a parallel state with the upper clamp and the lower clamp, thereby improving the product tension detection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of the upper clamp of the utility model;

[0014] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure;

[0015] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure of B.

[0016] In the figure: 1. Tensile testing machine body; 2. Test bracket; 3. Upper clamp; 4. Lower clamp; 5. Auxiliary line; 6. Pay-off rod; 7. Rotating head; 8. Friction plate; 9. Rotating groove; 10. Vertical block; 11. Mounting frame; 12. Top plate; 13. Magnet block; 14. Guide block; 15. Guide groove. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Example

[0019] See also Figure 1-4, as shown in the figure: This embodiment is a preferred implementation scheme in the present technical scheme, a plastic tensile testing machine, including a tensile testing machine body 1, a test bracket 2, an upper clamp 3, and a lower clamp 4, the test bracket 2 is arranged on the top of the tensile testing machine body 1, the upper clamp 3 is arranged on the top of the test bracket 2, and the lower clamp 4 is slidably connected to the inner side of the test bracket 2; the upper clamp 3 is rotatably connected to the wire-release rod 6 on both sides, the outer wall of the wire-release rod 6 is wrapped with an auxiliary wire 5, and the other end of the auxiliary wire 5 is fixedly connected to a vertical block 10, and the lower clamp 4 is fixedly connected to the mounting frame 11 on both sides, and a top plate 12 is arranged on the top of the mounting frame 11, and a magnet block 13 is slidably connected to the inner side of the mounting frame 11, and the magnet block 13 is magnetically connected to the top plate 12 and the vertical block 10 respectively.

[0020] like Figure 1 , 3 As shown, one end of the pay-off rod 6 is fixedly connected to a rotating head 7, a rotating groove 9 is provided on one side of the upper clamp 3, one end of the rotating head 7 is inserted into the rotating groove 9, a friction plate 8 is provided between the rotating head 7 and the upper clamp 3, and the friction plate 8 is a metal anti-slip pad, and the rotating head 7 provided at one end of the pay-off rod 6 is inserted into the rotating groove 9 provided in the upper clamp 3, so that the pay-off rod 6 is located at the edge of the upper clamp 3 and rotates, and contacts with the rotating head 7 through the friction plate 8, thereby increasing the rotation friction and preventing the rotating head 7 from rotating automatically.

[0021] like Figure 2 , 4 As shown, guide blocks 14 are fixedly connected at both ends of the magnet block 13, and guide grooves 15 matching the guide blocks 14 are opened on both sides of the inner side of the mounting frame 11. One end of the guide block 14 is inserted into the guide groove 15. The guide blocks 14 respectively provided at both ends of the magnet block 13 are inserted into the guide groove 15 opened on the inner side of the mounting frame 11, so that the magnet block 13 is located on the inner side of the mounting frame 11 and slides.

[0022] like Figure 2 , 3 As shown, one end of the auxiliary line 5 is fixedly connected to the pay-off rod 6.

[0023] like Figure 2 , 3 As shown, the top plate 12 and the vertical block 10 are made of magnetically attractive metal iron.

[0024] like Figure 1 , 2 As shown, after the vertical block 10 is in contact with the top plate 12 and laid flat, the auxiliary line 5 is parallel to the test bracket 2 .

[0025] In this embodiment, firstly, the various parts are installed. When the plastic strip is tensile tested, after the upper clamp 3 and the lower clamp 4 are moved to the appropriate positions, the two wire-releasing rods 6 are rotated clockwise respectively, so that the vertical blocks 10 connected at one end of the two auxiliary wires 5 move downward. When the two vertical blocks 10 are moved to the top plate 12 respectively, the rotation is stopped, and the wire-releasing rod 6 is difficult to rotate without external force. Then the magnet block 13 is pushed upward. Both the top plate 12 and the vertical block 10 are made of metal that can be magnetically attracted. The iron block 13 is fixed to the bottom of the top plate 12 and magnetically fixes the vertical block 10. When the magnet block 13 moves to the lower inner side of the mounting frame 11, the distance between the magnet block 13 and the top plate 12 does not produce magnetic attraction, preventing the vertical block 10 from moving, so that the two auxiliary lines 5 are respectively located in parallel in the middle of the upper clamp 3 and the lower clamp 4, and are used as auxiliary reference when clamping the product. The gravity of the vertical block 10 is less than the torque of the pay-off rod 6. In the absence of external force, the pay-off rod 6 will not rotate when the vertical block 10 is suspended.

[0026] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make some simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A plastic tensile testing machine, comprising a tensile testing machine body (1), a test bracket (2), an upper clamp (3), and a lower clamp (4), wherein the test bracket (2) is arranged on the top of the tensile testing machine body (1), the upper clamp (3) is arranged on the top of the test bracket (2), and the lower clamp (4) is slidably connected to the inner side of the test bracket (2); characterized in that: The upper clamp (3) is rotatably connected to a wire-releasing rod (6) on both sides, an auxiliary wire (5) is wound around the outer wall of the wire-releasing rod (6), and the other end of the auxiliary wire (5) is fixedly connected to a vertical block (10). The lower clamp (4) is fixedly connected to a mounting frame (11) on both sides, a top plate (12) is provided on the top of the mounting frame (11), and a magnet block (13) is slidably connected to the inner side of the mounting frame (11), and the magnet block (13) is magnetically connected to the top plate (12) and the vertical block (10) respectively.

2. A plastic tensile testing machine according to claim 1, characterized in that: One end of the wire-releasing rod (6) is fixedly connected to a rotating head (7); one side of the upper clamp (3) is provided with a rotating groove (9); one end of the rotating head (7) is inserted into the rotating groove (9); a friction plate (8) is provided between the rotating head (7) and the upper clamp (3); and the friction plate (8) is a metal anti-slip pad.

3. A plastic tensile testing machine according to claim 1, characterized in that: The two ends of the magnet block (13) are respectively fixedly connected with guide blocks (14), and the inner sides of the mounting frame (11) are provided with guide grooves (15) matching the guide blocks (14), and one end of the guide block (14) is inserted into the guide groove (15).

4. A plastic tensile testing machine according to claim 1, characterized in that: One end of the auxiliary line (5) is fixedly connected to the pay-off rod (6).

5. A plastic tensile testing machine according to claim 1, characterized in that: The top plate (12) and the vertical block (10) are respectively made of magnetically attractive metallic iron materials.

6. A plastic tensile testing machine according to claim 1, characterized in that: After the vertical block (10) is in contact with the top plate (12) and laid flat, the auxiliary line (5) is parallel to the test bracket (2).

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