Polyethylene standard test block tensile test equipment

Abstract

The utility model belongs to the technical field of polyethylene standard block tensile test, and particularly relates to polyethylene standard test block tensile test equipment. Comprising a supporting base, a guide supporting frame, a bottom clamping assembly, a movable clamping assembly, a movable connecting assembly and a control device, the guide supporting frame is fixed to the upper portion of the supporting base, a spiral lead screw is arranged in the guide supporting frame, and the spiral lead screw is driven by an external motor; the bottom clamping assembly is fixedly arranged on one side of the supporting base, the bottom clamping assembly is connected with the supporting base through a bearing, a driving shaft is arranged at the bottom of the bottom clamping assembly, and the whole bottom clamping assembly can rotate by rotating the driving shaft; the movable clamping assembly is fixed to the bottom of the movable connecting assembly, and the movable connecting assembly is in sliding connection with the guide supporting frame and is in threaded connection with the spiral lead screw. And the control device is used for controlling the power-on and power-off of the whole device. The tensile test equipment for the polyethylene standard test block is high in practical performance.

Description

Technical Field

[0001] The utility model belongs to the technical field of polyethylene standard block tensile test, in particular to polyethylene standard test block tensile test equipment. Background Art

[0002] Polyethylene plastic is an excellent material, widely used in all aspects of production and life. Among the various properties of plastics, mechanical properties are an important aspect of the practical application of plastics, including tensile strength, bending modulus, torsional strength, impact strength, etc. Among them, the tensile strength and elongation at break of plastics are the main factors that determine whether plastic products can maintain their original shape under the action of external forces during use, so their testing is of great significance.

[0003] The existing tensile testing equipment can only perform simple tensile strength or torsional strength tests, which will result in a narrow practical range of the device. For this reason, we propose a polyethylene standard test block tensile testing equipment that can perform both tensile strength and torsional strength tests. Utility Model Content

[0004] In view of the above deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a polyethylene standard test block tensile test device to solve the problem of poor practicality of the existing polyethylene standard test block tensile test device.

[0005] In order to achieve the above objectives, the present invention adopts the following technical solutions:

[0006] A polyethylene standard test block tensile test equipment comprises a support base, a guide support frame, a bottom clamping assembly, a mobile clamping assembly, a mobile connection assembly and a control device, wherein the guide support frame is fixed to the upper part of the support base, a spiral screw is arranged in the guide support frame, and the spiral screw is driven by an external motor; the bottom clamping assembly is fixed on one side of the support base, the bottom clamping assembly is connected to the support base through a bearing, and a driving shaft is arranged at the bottom of the bottom clamping assembly, and rotating the driving shaft can rotate the entire bottom clamping assembly; the mobile clamping assembly is fixed to the bottom of the mobile connection assembly, the mobile connection assembly is slidably connected to the guide support frame, and the mobile connection assembly is threadedly connected to the spiral screw; the control device is used to control the power on and off of the entire device.

[0007] Furthermore, in order to make the entire device more compact, the lower part of the spiral screw passes through the bottom of the support base, and a first driven gear is provided at the connection between the spiral screw and the support base. The first driven gear is engaged with the active teeth of the driving motor provided in the support base. When the driving motor rotates, it drives the spiral screw to rotate. The driving motor is preferably a servo motor. The different rotation directions of the driving motor drive the movable connecting assembly to move up and down.

[0008] Furthermore, in order to be able to control the drive shaft at any time, a bottom clamping assembly drive gear is provided inside the support base at a position coaxial with the drive shaft. The bottom clamping assembly drive gear is connected to the drive shaft through a coupling. The bottom clamping assembly drive gear is meshed with a second driven gear provided inside the support base, and the second driven gear is meshed with the first driven gear.

[0009] Furthermore, the movable clamping assembly includes two first clamping blocks arranged opposite to each other, and the bottom clamping assembly includes two second clamping blocks arranged opposite to each other.

[0010] Furthermore, in order to facilitate the mobile clamping assembly to clamp the test test block, a first clamping drive assembly is provided on the upper part of the mobile clamping assembly, and the first clamping drive assembly is fixed to the bottom of the mobile connecting assembly through a supporting connecting rod. The first clamping drive assembly includes a first double-headed screw and a rotating handle, and the screw threads at both ends of the first double-headed screw have opposite directions. The first double-headed screw is connected to the upper end of the first clamping block by a threaded part, and the rotating handle is fixed at one end of the first double-headed screw. Rotating the rotating handle can make the two first clamping blocks move toward each other.

[0011] Furthermore, in order to facilitate the bottom clamping assembly to clamp the test test block, a second clamping drive assembly is provided at the bottom of the bottom clamping assembly, the top of the second clamping drive assembly is connected to the bottom of the bottom clamping assembly, the bottom of the second clamping drive assembly is fixedly connected to the drive shaft, the second clamping drive assembly includes a second double-headed screw and a clamping drive motor, the screw threads at both ends of the second double-headed screw have opposite directions, the second double-headed screw is connected to the upper end of the second clamping block with a threaded part, the clamping drive motor is a servo motor, and the rotation of the clamping drive motor causes the two second clamping blocks to move toward each other to complete the clamping work.

[0012] Furthermore, in order to prevent dust from entering the guide support frame and shortening the service life of the spiral screw, a telescopic baffle is provided on the side of the guide support frame close to the movable clamping assembly, and the telescopic baffle is symmetrically arranged at both ends of the guide support frame; and one end of the telescopic baffle is fixed to the inner wall of the guide support frame, and the other end of the telescopic baffle is fixed to the movable connecting assembly.

[0013] In summary, due to the adoption of the above technical solution, the beneficial technical effects of the utility model are:

[0014] A polyethylene standard test block tensile test device completes the tensile test of the test block through the cooperation of a mobile clamping assembly and a mobile connecting assembly; at the same time, the torsional strength test is completed by rotating the bottom clamping assembly by rotating the rotating drive shaft, thereby improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is the front view of the utility model.

[0016] Figure 2 For this utility model Figure 1 Top view of the .

[0017] Figure 3 For this utility model Figure 2 Schematic diagram of the cross section along the AA direction.

[0018] Figure 4 For this utility model Figure 2 Schematic diagram of the cross section along the BB direction.

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the utility model.

[0020] In the figure: support base 1, guide support frame 2, bottom clamping assembly 3, mobile clamping assembly 4, mobile connecting assembly 5, control device 6, screw 7, drive motor 8, active tooth 9, first driven gear 10, second driven gear 11 meshing, bottom clamping assembly drive gear 12, drive shaft 13, coupling 14, first clamping drive assembly 15, second clamping drive assembly 16, first double-ended screw 17, rotating handle 18, second double-ended screw 19, clamping drive motor 20, first clamping block 21, second clamping block 22, telescopic baffle 23, support connecting rod 24. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model content, and are not used to limit the utility model content.

[0022] Example 1

[0023] In this embodiment, Figure 1-5As shown, a polyethylene standard test block tensile test equipment comprises a support base 1, a guide support frame 2, a bottom clamping assembly 3, a mobile clamping assembly 4, a mobile connection assembly 5 and a control device 6, wherein the guide support frame 2 is fixed to the upper part of the support base 1, a spiral screw 7 is arranged inside the guide support frame 2, and the spiral screw 7 is driven by an external motor; the bottom clamping assembly 3 is fixed on one side of the support base 1, the bottom clamping assembly 3 is connected to the support base 1 through a bearing, and a driving shaft 13 is arranged at the bottom of the bottom clamping assembly 3, and rotating the driving shaft 13 can rotate the entire bottom clamping assembly 3; the mobile clamping assembly 4 is fixed to the bottom of the mobile connection assembly 5, the mobile connection assembly 5 is slidably connected to the guide support frame 2, and the mobile connection assembly 5 is threadedly connected to the spiral screw 7; the control device 6 is used to control the power on and off of the entire device. In order to make the whole device more compact, the lower part of the spiral screw 7 passes through the bottom of the support base 1. A first driven gear 10 is provided at the connection between the spiral screw 7 and the support base 1. The first driven gear 10 meshes with the driving gear 9 of the drive motor 8 provided in the support base 1. When the drive motor 8 rotates, the spiral screw 7 is driven to rotate. The drive motor 8 is preferably a servo motor. The different rotation directions of the drive motor 8 drive the mobile connection assembly 5 to move up and down. In order to be able to control the drive shaft 13 at any time, a bottom clamping assembly drive gear 12 is provided at a position coaxial with the drive shaft 13 inside the support base 1. The bottom clamping assembly drive gear 12 is connected to the drive shaft 13 through a coupling 14. The bottom clamping assembly drive gear 12 meshes with the second driven gear 11 provided inside the support base 1, and the second driven gear 11 meshes with the first driven gear 10.

[0024] The control device 6 is equipped with a display device, and the display device is used to display the tensile force and the torsional force.

[0025] During operation, the lifting test of the test block is completed by the cooperation of the mobile clamping assembly 4 and the mobile connecting assembly 5. At the same time, the driving shaft 13 is rotated to rotate the bottom clamping assembly 3 to complete the torsional strength test.

[0026] The movable clamping assembly 4 includes two first clamping blocks 21 arranged opposite to each other, and the bottom clamping assembly 3 includes two second clamping blocks 22 arranged opposite to each other.

[0027] Example 2

[0028] In this embodiment, Figure 1-5As shown, in order to facilitate the mobile clamping assembly 4 to clamp the test test block, a first clamping drive assembly 15 is provided on the upper part of the mobile clamping assembly 4, and the first clamping drive assembly 15 is fixed to the bottom of the mobile connecting assembly 5 through a supporting connecting rod 24. The first clamping drive assembly 15 includes a first double-headed screw 17 and a rotating handle 18, and the screw threads at both ends of the first double-headed screw 17 have opposite directions. The first double-headed screw 17 is connected to the upper end of the first clamping block 21 with a threaded part, and the rotating handle 18 is fixed at one end of the first double-headed screw 17. Rotating the rotating handle 18 can make the two first clamping blocks 21 move toward each other.

[0029] Example 3

[0030] In this embodiment, Figure 1-5 As shown, in order to facilitate the bottom clamping assembly 3 to clamp the test block, a second clamping drive assembly 16 is provided at the bottom of the bottom clamping assembly 3, the top of the second clamping drive assembly 16 is connected to the bottom of the bottom clamping assembly 3, the bottom of the second clamping drive assembly 16 is fixedly connected to the drive shaft 13, the second clamping drive assembly 16 includes a second double-headed screw 19 and a clamping drive motor 20, the screw threads at both ends of the second double-headed screw 19 have opposite spiral directions, the second double-headed screw 19 is connected to the upper end of the second clamping block 22 with a threaded part, the clamping drive motor 20 is a servo motor, and the rotation of the clamping drive motor 20 causes the two second clamping blocks 22 to move toward each other to complete the clamping work.

[0031] Example 4

[0032] In this embodiment, Figure 1-5 As shown, in order to prevent dust from entering the guide support frame 2 and shortening the service life of the spiral screw 7, a telescopic baffle 23 is provided on the side of the guide support frame 2 close to the movable clamping assembly 4, and the telescopic baffle 23 is symmetrically arranged at both ends of the guide support frame 2; and one end of the telescopic baffle 23 is fixed to the inner wall of the guide support frame 2, and the other end of the telescopic baffle 23 is fixed to the movable connecting assembly 5.

[0033] The above description is a preferred embodiment of the utility model content and is not intended to limit the utility model content. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model content should be included in the protection scope of the utility model content.

Claims

1. A polyethylene standard test block tensile test device, comprising a support base (1), a guide support frame (2), a bottom clamping assembly (3), a mobile clamping assembly (4), a mobile connecting assembly (5) and a control device (6), characterized in that: The guide support frame (2) is fixed to the upper part of the support base (1), a screw threaded rod (7) is arranged inside the guide support frame (2), and the screw threaded rod (7) is driven by an external motor; the bottom clamping assembly (3) is fixed to one side of the support base (1), the bottom clamping assembly (3) is connected to the support base (1) via a bearing, and a driving shaft (13) is arranged at the bottom of the bottom clamping assembly (3), and the entire bottom clamping assembly (3) can be rotated by rotating the driving shaft (13); the mobile clamping assembly (4) is fixed to the bottom of the mobile connection assembly (5), the mobile connection assembly (5) is slidably connected to the guide support frame (2), and the mobile connection assembly (5) is threadedly connected to the screw threaded rod (7); the control device (6) is used to control the power on and off of the entire device.

2. A polyethylene standard test block tensile test equipment according to claim 1, characterized in that: The lower portion of the spiral screw (7) penetrates the bottom of the support base (1), and a first driven gear (10) is provided at the connection between the spiral screw (7) and the support base (1). The first driven gear (10) meshes with a driving gear (9) of a drive motor (8) provided in the support base (1), and when the drive motor (8) rotates, the spiral screw (7) is driven to rotate.

3. A polyethylene standard test block tensile test equipment according to claim 1, characterized in that: A bottom clamping assembly driving gear (12) is provided inside the support base (1) at a position coaxial with the driving shaft (13); the bottom clamping assembly driving gear (12) is connected to the driving shaft (13) via a coupling (14); the bottom clamping assembly driving gear (12) meshes with a second driven gear (11) provided inside the support base (1); and the second driven gear (11) meshes with the first driven gear (10).

4. A polyethylene standard test block tensile test equipment according to claim 1, characterized in that: The movable clamping assembly (4) comprises two first clamping blocks (21) arranged opposite to each other, and the bottom clamping assembly (3) comprises two second clamping blocks (22) arranged opposite to each other.

5. A polyethylene standard test block tensile test equipment according to claim 1, characterized in that: A first clamping drive assembly (15) is provided at the upper portion of the movable clamping assembly (4). The first clamping drive assembly (15) is fixed to the bottom of the movable connection assembly (5) via a supporting connecting rod (24). The first clamping drive assembly (15) comprises a first double-ended lead screw (17) and a rotating handle (18). The screw threads at both ends of the first double-ended lead screw (17) have opposite spiral directions. A threaded member is provided at the upper end of the first double-ended lead screw (17) and the first clamping block (21). The rotating handle (18) is fixed to one end of the first double-ended lead screw (17). Rotating the rotating handle (18) can cause the two first clamping blocks (21) to move toward each other.

6. A polyethylene standard test block tensile test equipment according to claim 1, characterized in that: A second clamping drive assembly (16) is provided at the bottom of the bottom clamping assembly (3), the top of the second clamping drive assembly (16) is connected to the bottom of the bottom clamping assembly (3), the bottom of the second clamping drive assembly (16) is fixedly connected to the drive shaft (13), the second clamping drive assembly (16) comprises a second double-headed lead screw (19) and a clamping drive motor (20), the screw threads at both ends of the second double-headed lead screw (19) have opposite spiral directions, the second double-headed lead screw (19) is connected to the upper ends of the second clamping block (22) by a threaded member, the clamping drive motor (20) is a servo motor, and the rotation of the clamping drive motor (20) causes the two second clamping blocks (22) to move towards each other.

7. A polyethylene standard test block tensile test equipment according to claim 1, characterized in that: A telescopic baffle (23) is provided on one side of the guide support frame (2) close to the movable clamping assembly (4), and the telescopic baffle (23) is symmetrically arranged at both ends of the guide support frame (2); one end of the telescopic baffle (23) is fixed to the inner wall of the guide support frame (2), and the other end of the telescopic baffle (23) is fixed to the movable connecting assembly (5).

8. The polyethylene standard test block tensile test equipment according to claim 1, characterized in that: The control device (6) is equipped with a display device, and the display device is used to display the tensile force and the torsional force.

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