Device for detecting tensile property of PVC (Polyvinyl Chloride) electronic wire

Abstract

The utility model discloses a PVC electronic wire tensile strength detection device which comprises a rack, a pulling frame is connected to the inner side of the rack in a lifting mode, an opening is formed in the rack, a lower clamping table and a limiting frame are fixedly connected to the bottom of the opening, the limiting frame is of an annular structure, the limiting frame is arranged on the outer wall of the lower clamping table in a sleeving mode, and the lower clamping table is provided with a clamping groove. A heating assembly and an upper clamping table are arranged at the bottom of the pulling frame, and a lower clamping table is installed in the rack. The heating assembly comprises a heat preservation cover fixed to the bottom of the pulling frame, the heat preservation cover is arranged on the outer wall of an upper clamping table in a sleeving mode, the upper clamping table corresponds to the lower clamping table in position, a PVC electronic wire to be detected is clamped on the lower clamping table and the upper clamping table, a heating pipe is arranged on the inner side of the heat preservation cover, and one end of the heat preservation cover penetrates through the rack and is in sliding connection with the rack. The device can realize temperature detection of the to-be-detected PVC electronic wire, so that detection can be carried out according to the temperature of the use environment of the to-be-detected PVC electronic wire, and the detection accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC electronic wire detection, in particular to a PVC electronic wire tensile strength detection device. Background Art

[0002] PVC electronic wire is composed of single or multiple conductive copper wires, and the surface is wrapped with a layer of insulator to prevent contact with the conductor.

[0003] In order to ensure the production quality of PVC electronic wires, it is necessary to test the tensile properties of PVC electronic wires. A tensile testing machine is needed for the test. However, the existing tensile testing machines have a single function and cannot perform temperature simulation tests according to the temperature of the environment in which the PVC electronic wires are used, which affects the accuracy of the tensile performance test of the PVC electronic wires. Utility Model Content

[0004] The purpose of the utility model is to provide a PVC electronic wire tensile strength testing device to solve the problem that the PVC electronic wire cannot be tested with temperature as proposed in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PVC electronic wire tensile strength testing device, comprising a frame, a pulling frame connected to the inner side of the frame for lifting, a heating component and an upper clamping platform provided at the bottom of the pulling frame, and a lower clamping platform installed inside the frame;

[0006] The heating assembly includes an insulation cover fixed to the bottom of the pulling frame, the insulation cover is sleeved on the outer wall of the upper clamping platform, the upper clamping platform corresponds to the position of the lower clamping platform, and the lower clamping platform and the upper clamping platform both clamp the PVC electronic wire to be tested. A heating tube is provided on the inside of the insulation cover, and one end of the insulation cover passes through the frame and is slidably connected to the frame.

[0007] Preferably, an opening is provided on the frame, and a lower clamping platform and a limiting frame are fixedly connected to the bottom of the opening. The limiting frame is an annular structure, and the limiting frame is sleeved on the outer wall of the lower clamping platform.

[0008] Preferably, an annular opening is provided on the limiting frame, a heat-insulating cover is inserted into the limiting frame, and the heat-insulating cover is slidably connected to the limiting frame.

[0009] Preferably, an opening is provided at one end of the heat-insulating cover, a door panel is hingedly connected to the inner side of the opening, and a plug plate is fixedly connected to the outer wall of the heat-insulating cover.

[0010] Preferably, a connecting plate is fixedly connected to one side of the door panel, the connecting plate is located at the bottom of the plug plate, and latches are inserted between the connecting plate and the plug plate.

[0011] Preferably, the upper clamping platform and the lower clamping platform are both fixedly connected with a plurality of fixing plates, the fixing plates are threadedly connected with screws, and one end of the screws is attached to the outer wall of the PVC electronic wire to be tested.

[0012] Preferably, a reciprocating ball screw mechanism is installed on the inner side of the frame, and a pulling frame is connected to the inner side of the reciprocating ball screw mechanism.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) This device can realize the temperature detection of the PVC electronic wire to be detected, so that the detection can be carried out according to the temperature of the use environment of the PVC electronic wire to be detected, thereby improving the accuracy of the detection.

[0015] (2) This device wraps the upper clamping platform and the lower clamping platform in a heat-insulating cover at the bottom of the pulling frame. At the same time, a heating tube is provided inside the heat-insulating cover to heat the PVC electronic wires to be tested on the upper clamping platform and the lower clamping platform, thereby reaching the required temperature for testing and improving the practicality of this device.

[0016] (3) This device inserts one end of the heat preservation cover at the bottom of the frame, and the heat preservation cover is slidably connected to the frame, thereby ensuring the temperature requirement without affecting the lifting of the pulling frame and the upper clamping platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a PVC electronic wire tensile strength testing device of the utility model;

[0018] Figure 2 This is a cross-sectional view of a heat preservation cover of a PVC electronic wire tensile strength testing device according to the present invention;

[0019] Figure 3 This is a top cross-sectional view of a heat preservation cover of a PVC electronic wire tensile strength testing device of the present utility model;

[0020] Figure 4 This utility model is a PVC electronic wire tensile strength testing device Figure 1 Enlarged view of point A in the middle.

[0021] In the figure: 1. Reciprocating ball screw mechanism; 2. Frame; 3. Pulling frame; 4. Heating assembly; 41. Insulation cover; 42. Door panel; 43. Limiting frame; 44. Heating tube; 45. Insert plate; 46. Latch; 47. Connecting plate; 5. Upper clamping platform; 6. Lower clamping platform; 7. Fixing plate; 8. Screw; 9. PVC electronic wire to be tested. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-4 The utility model provides a technical solution: a PVC electronic wire tensile strength testing device, including a frame 2, a pulling frame 3 is connected to the inner side of the frame 2 by lifting, an opening is opened on the frame 2, and the bottom of the opening is fixedly connected to the lower clamping platform 6 and the limit frame 43, the limit frame 43 is annular, and the limit frame 43 is sleeved on the outer wall of the lower clamping platform 6; an annular opening is opened on the limit frame 43, and a heat preservation cover 41 is inserted on the limit frame 43, and the heat preservation cover 41 and the limit frame 43 are slidably connected; this structure can ensure the stability of the heat preservation cover 41 during the sliding process by arranging the limit frame 43; an opening is opened at one end of the heat preservation cover 41, and a door panel 42 is hinged on the inside of the opening, and an inserting plate 45 is fixedly connected to the outer wall of the heat preservation cover 41; this structure is convenient for taking and placing the PVC electronic wire 9 to be tested by arranging the heat preservation cover 41 that can be opened; a connecting plate 47 is fixedly connected to one side of the door panel 42, and the connecting plate 47 is located at the bottom of the inserting plate 45, and the connecting plate 47 and the inserting plate 45 are inserted There is a latch 46; the latch 46 of this structure can connect the door panel 42 with the heat preservation cover 41; by setting the heat preservation cover 41 and the frame 2 to be connected, a sealed space can be formed to ensure that the temperature does not lose during the detection process; a reciprocating ball screw mechanism 1 is installed on the inside of the frame 2, and the inner side of the reciprocating ball screw mechanism 1 is connected to the pulling frame 3; the reciprocating ball screw mechanism 1 of this structure is composed of a motor, a fixed seat, a threaded rod and a screw slide, and the inner side of the screw slide is fixed to the pulling frame 3 by bolts, so that the pulling frame 3 can be automatically lifted and lowered; a heating component 4 and an upper clamping platform 5 are provided at the bottom of the pulling frame 3, and a plurality of fixing plates 7 are fixedly connected to the upper clamping platform 5 and the lower clamping platform 6, and a screw 8 is threadedly connected to the fixing plate 7, and one end of the screw 8 is attached to the outer wall of the PVC electronic wire 9 to be detected; this structure can adjust the position of the screw 8 by rotating the screw 8 to achieve clamping of the PVC electronic wire 9 to be detected; a lower clamping platform 6 is installed inside the frame 2;

[0024] The heating assembly 4 includes a thermal insulation cover 41 fixed to the bottom of the pulling frame 3, and the thermal insulation cover 41 is sleeved on the outer wall of the upper clamping platform 5. The upper clamping platform 5 corresponds to the lower clamping platform 6 in position, and the lower clamping platform 6 and the upper clamping platform 5 both clamp the PVC electronic wire 9 to be tested. A heating tube 44 is provided on the inner side of the thermal insulation cover 41, and one end of the thermal insulation cover 41 passes through the frame 2 and forms a sliding connection with the frame 2; a tension sensor is provided on the upper clamping platform 5 of this device for detecting tension. The tension sensor is a publicly mature technology in this field, so it will not be described in detail here; the heating tube 44 of this device can be controlled by PLC.

[0025] Working principle: When using the PVC electronic wire tensile strength testing device, first remove the latch 46, then rotate the door panel 42 to open, then take out the PVC electronic wire 9 to be tested, and fix the two ends of the PVC electronic wire 9 to be tested to the upper clamping platform 5 and the lower clamping platform 6 respectively. After the PVC electronic wire 9 to be tested is fixed, close the door panel 42 and fix it with the latch 46. After the heating tube 44 is heated to the set temperature and heated for a certain period of time, the reciprocating ball screw mechanism 1 drives the pulling frame 3 to rise, so that the pulling frame 3 drives the upper clamping platform 5 to pull the PVC electronic wire 9 to be tested for tensile test. After the test is completed, the PVC electronic wire 9 to be tested can be taken out after the insulation cover 41 cools down.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A PVC electronic wire tensile strength testing device, comprising a frame (2), wherein a pulling frame (3) is connected to the inner side of the frame (2) in a lifting manner, characterized in that: A heating assembly (4) and an upper clamping platform (5) are provided at the bottom of the pulling frame (3), and a lower clamping platform (6) is installed inside the frame (2); The heating assembly (4) includes a heat-insulating cover (41) fixed to the bottom of the pulling frame (3), the heat-insulating cover (41) is sleeved on the outer wall of the upper clamping platform (5), the upper clamping platform (5) corresponds to the position of the lower clamping platform (6), and the lower clamping platform (6) and the upper clamping platform (5) both clamp the PVC electronic wire (9) to be tested, and a heating tube (44) is provided on the inner side of the heat-insulating cover (41), and one end of the heat-insulating cover (41) passes through the frame (2) and forms a sliding connection with the frame (2).

2. A PVC electronic wire tensile strength testing device according to claim 1, characterized in that: The frame (2) is provided with an opening, and the bottom of the opening is fixedly connected to a lower clamping platform (6) and a limiting frame (43), the limiting frame (43) is an annular structure, and the limiting frame (43) is sleeved on the outer wall of the lower clamping platform (6).

3. A PVC electronic wire tensile strength testing device according to claim 2, characterized in that: An annular opening is provided on the limiting frame (43), a heat-insulating cover (41) is inserted into the limiting frame (43), and the heat-insulating cover (41) and the limiting frame (43) are in sliding connection.

4. The PVC electronic wire tensile strength testing device according to claim 1, characterized in that: An opening is formed at one end of the heat-insulating cover (41), a door panel (42) is hingedly connected to the inner side of the opening, and a plugboard (45) is fixedly connected to the outer wall of the heat-insulating cover (41).

5. A PVC electronic wire tensile strength testing device according to claim 4, characterized in that: A connecting plate (47) is fixedly connected to one side of the door panel (42), and the connecting plate (47) is located at the bottom of the plugging plate (45). A latch (46) is inserted through the connecting plate (47) and the plugging plate (45).

6. The PVC electronic wire tensile strength testing device according to claim 1, characterized in that: A plurality of fixing plates (7) are fixedly connected to the upper clamping platform (5) and the lower clamping platform (6), and a screw rod (8) is threadedly connected to the fixing plate (7), and one end of the screw rod (8) is attached to the outer wall of the PVC electronic wire (9) to be tested.

7. The PVC electronic wire tensile strength testing device according to claim 1, characterized in that: A reciprocating ball screw mechanism (1) is installed on the inner side of the frame (2), and a pulling frame (3) is connected to the inner side of the reciprocating ball screw mechanism (1).

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