RPET material impact toughness testing device

Abstract

The utility model relates to the technical field of impact toughness testing, in particular to an RPET material impact toughness testing device which comprises a testing box, an impact assembly, a control box, a base and a sample seat, the base is connected to the lower end of the testing box, the control box is connected to one side of the front face of the testing box, and the impact assembly is connected to the position, close to the middle of the back face, in the testing box. A sample seat is connected to the middle of the bottom in the test box, the impact assembly is composed of an impact hammer, a limiting frame, a control assembly, a rotating seat and a motor, and the control assembly is composed of a first barrier strip, a first telescopic air cylinder, a mounting frame, a second barrier strip and a second telescopic air cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of impact toughness testing, in particular to an impact toughness testing device for RPET materials. Background Technique

[0002] Most of the impact hammers of the impact toughness testing device for RPET materials are limited by pins, and then fall by pulling out the pins. Manual operation is required, and when using again, the impact hammer needs to be manually reset, which is time-consuming and laborious. Moreover, it is difficult for experimenters to evacuate in time when the impact hammer falls, having certain potential safety hazards.

[0003] Therefore, it is necessary to design an impact toughness testing device for RPET materials to solve the problems in the above background technique. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problems in the prior art, and an impact toughness testing device for RPET materials is proposed.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An impact toughness testing device for RPET materials, including a testing box, an impact component, a control box, a base and a sample seat. The lower end of the testing box is connected to the base, one side of the front of the testing box is connected to the control box, the impact component is connected near the middle of the back inside the testing box, and the sample seat is connected to the middle of the bottom inside the testing box;

[0007] A box door is connected to the middle of the front of the testing box, a handle is connected to one side of the front of the box door, protective nets are provided on both sides, the upper end and the back of the testing box, and transparent plates are provided on the front of the testing box and the box door;

[0008] The impact component consists of an impact hammer, a limiting frame, a control component, a rotating seat and a motor. The impact hammer and the limiting frame are connected inside the rotating seat, a motor is connected to the middle of the back of the rotating seat, and the control component is connected to the upper part of the limiting frame;

[0009] The control component consists of a first stop bar, a first telescopic cylinder, a mounting frame, a second stop bar and a second telescopic cylinder. The second telescopic cylinder and the first telescopic cylinder are connected to both sides of the mounting frame, the second stop bar is connected to the front of the second telescopic cylinder, and the first stop bar is connected to the front of the first telescopic cylinder;

[0010] A plug-in slot is opened in the middle of the front of the rotating seat, a clamping slot is opened near the plug-in slot on the front of the rotating seat, a rotating shaft is connected inside the plug-in slot, multiple limiting slots are provided near the back of the outside of the rotating shaft, an end cover is provided on the front of the rotating shaft, and a first rotating slot and a second rotating slot are opened outside the rotating seat;

[0011] The sample holder is composed of a stop block, a bottom plate, a hydraulic rod, a sample and a sample rack. The sample racks are provided at both the front and back near the lower part of the sample. Both sides of the lower end of the sample rack are connected to hydraulic rods, and the lower ends of the hydraulic rods are connected to the bottom plate. A stop block is provided on one side of the bottom plate.

[0012] As a preferred solution of the present utility model, after the plug-in groove on the front surface of the rotating shaft and the rotating seat are plugged and connected, they are limited by the limiting groove.

[0013] As a preferred solution of the present utility model, the end cover and the card slot are connected by snap connection, and the end cover and the rotating seat are connected by bolts.

[0014] As a preferred solution of the present utility model, the lower part of the impact hammer is inserted into the first rotating groove and then sleeved outside the rotating shaft.

[0015] As a preferred solution of the present utility model, the lower part of the limiting frame is inserted into the second rotating groove and then spline-fitted with the rotating shaft of the motor and limited and locked by bolts. The motor, the rotating seat and the test box are all connected by bolts.

[0016] As a preferred solution of the present utility model, the mounting frame is connected to the limiting frame, the first telescopic cylinder and the second telescopic cylinder by socket connection and limited and locked by bolts.

[0017] As a preferred solution of the present utility model, the test box is connected to the base and the control box by bolts.

[0018] As a preferred solution of the present utility model, a PLC controller electrically connected to the motor and the hydraulic rod is provided in the control box.

[0019] As a preferred solution of the present utility model, the stop block, the bottom plate and the test box are connected by bolts, and the hydraulic rod is connected to the bottom plate and the sample rack by bolts.

[0020] In summary, the technical effects and advantages of the present utility model are as follows: For the RPET material impact toughness testing device, during testing, the sample is placed on two groups of sample racks, and then the motor is started. The limiting frame drives the impact hammer clamped between the first stop bar and the second stop bar to rotate to the falling angle. Then, the first telescopic cylinder drives the first stop bar to retract, and the impact hammer falls directly under the action of gravity, thus impacting on the sample, and completing the RPET material impact toughness test. After the test is completed, when the impact hammer is stable, the motor drives the limiting frame to rotate to the back of the impact hammer. Then, the first telescopic cylinder drives the first stop bar to extend, and the second telescopic cylinder drives to extend, forming a clamping structure on both sides of the impact hammer. Then, the motor drives the limiting frame and the impact hammer to rotate to the falling point to wait for the next test, forming an automatic lowering and recycling structure of the impact hammer, reducing manual operation, improving the safety of the experiment, being more time-saving and labor-saving. When in use, the height of the sample rack can be adjusted according to the size of the sample and the falling position of the impact hammer. The hydraulic rod drives the sample rack to move up and down, so that the center of the sample corresponds to the falling position of the impact hammer, effectively testing the toughness of the RPET material during impact. Moreover, the protective net and the transparent plate can form a protection around the impact hammer, reducing splashing, and the transparent plates on the front of the test box and the box door are convenient for viewing the test situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the overall structure of the present utility model Figure 1 ;

[0022] Figure 2 is the overall structure of the present utility model Figure 2 ;

[0023] Figure 3 is the structural diagram of the impact component of the present utility model;

[0024] Figure 4 is the split structural diagram of the impact component of the present utility model;

[0025] Figure 5 is the structural diagram of the sample seat of the present utility model.

[0026] In the figure: 1. Test chamber; 101. Chamber door; 102. Transparent plate; 103. Handle; 104. Protection net; 2. Impact assembly; 201. Impact hammer; 202. Limit frame; 203. Control assembly; 2031. First stop bar; 2032. First telescopic cylinder; 2033. Mounting frame; 2034. Second stop bar; 2035. Second telescopic cylinder; 204. Rotating seat; 2041. Limit groove; 2042. Rotating shaft; 2043. End cap; 2044. Card slot; 2045. Insertion slot; 2046. First rotating groove; 2047. Second rotating groove; 205. Motor; 3. Control box; 4. Base; 5. Sample holder; 501. Stopper; 502. Bottom plate; 503. Hydraulic rod; 504. Sample; 505. Sample rack. Detailed implementation manner

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0028] Refer to Figures 1 - 5, an impact toughness testing device for RPET materials, comprising a testing box 1, an impact component 2, a control box 3, a base 4 and a sample holder 5. The lower end of the testing box 1 is connected to the base 4, one side of the front of the testing box 1 is connected to the control box 3, the impact component 2 is connected near the middle of the back inside the testing box 1, and the sample holder 5 is connected to the middle of the bottom inside the testing box 1; a box door 101 is connected to the middle of the front of the testing box 1, a handle 103 is connected to one side of the front of the box door 101, protective nets 104 are provided on both sides, the upper end and the back of the testing box 1, and transparent plates 102 are provided on the front of the testing box 1 and the box door 101; the impact component 2 is composed of an impact hammer 201, a limit frame 202, a control component 203, a rotating seat 204 and a motor 205. The impact hammer 201 and the limit frame 202 are connected inside the rotating seat 204, the motor 205 is connected to the middle of the back of the rotating seat 204, and the control component 203 is connected to the upper part of the limit frame 202; the control component 203 is composed of a first stop bar 2031, a first telescopic cylinder 2032, a mounting frame 2033, a second stop bar 2034 and a second telescopic cylinder 2035. The second telescopic cylinder 2035 and the first telescopic cylinder 2032 are connected to both sides of the mounting frame 2033, the second stop bar 2034 is connected to the front of the second telescopic cylinder 2035, and the first stop bar 2031 is connected to the front of the first telescopic cylinder 2032; a plug-in slot 2045 is opened in the middle of the front of the rotating seat 204, a card slot 2044 is opened near the plug-in slot 2045 on the front of the rotating seat 204, a rotating shaft 2042 is connected inside the plug-in slot 2045, a plurality of groups of limit slots 2041 are provided near the back of the outside of the rotating shaft 2042, an end cover 2043 is provided on the front of the rotating shaft 2042, and a first rotating groove 2046 and a second rotating groove 2047 are opened outside the rotating seat 204; the sample holder 5 is composed of a stop block 501, a bottom plate 502, a hydraulic rod 503, a sample 504 and a sample rack 505. Sample racks 505 are provided near the front and the back of the lower part of the sample 504, hydraulic rods 503 are connected to both sides of the lower ends of the sample racks 505, the lower ends of the hydraulic rods 503 are connected to the bottom plate 502, and a stop block 501 is provided on one side of the bottom plate 502.

[0029] Refer to Figures 1 - 5, the impact hammers of the RPET material impact toughness testing device are mostly limited by pins and then fall by pulling out the pins. Manual operation is required, and when used again, the impact hammer needs to be manually returned to its position, which is time-consuming and laborious. Moreover, it is difficult for experimenters to evacuate in time when the impact hammer falls, posing certain safety hazards. After the rotating shaft 2042 and the insertion slot 2045 on the front of the rotating seat 204 are inserted and connected, they are limited by the limiting slot 2041. The end cover 2043 and the card slot 2044 are connected by clamping, and the end cover 2043 and the rotating seat 204 are connected by bolts. The lower part of the impact hammer 201 is inserted into the first rotating slot 2046 and then sleeved outside the rotating shaft 2042. The lower part of the limiting frame 202 is inserted into the second rotating slot 2047 and then spline-fitted with the rotating shaft of the motor 205 and limited and locked by bolts. The motor 205, the rotating seat 204, and the test box 1 are all connected by bolts. The mounting frame 2033 and the limiting frame 202, the first telescopic cylinder 2032, and the second telescopic cylinder 2035 are all connected by sleeving and limited and locked by bolts. The control box 3 is provided with a PLC controller electrically connected to the motor 205 and the hydraulic rod 503. During the test, the sample 504 is placed on the two groups of sample racks 505, and then the motor 205 is started, so that the limiting frame 202 drives the impact hammer 201 clamped between the first stop bar 2031 and the second stop bar 2034 to rotate to the falling angle. Then the first telescopic cylinder 2032 drives the first stop bar 2031 to retract, and the impact hammer 201 falls directly under the action of gravity, thus impacting on the sample 504, thereby completing the impact toughness test of the RPET material. After the test is completed, when the impact hammer 201 is stable, the motor 205 drives the limiting frame 202 to rotate to the back of the impact hammer 201, and then the first telescopic cylinder 2032 drives the first stop bar 2031 and the second telescopic cylinder 2035 drives to extend, forming a clamping structure on both sides of the impact hammer 201. Then the motor 205 drives the limiting frame 202 and the impact hammer 201 to rotate to the falling point and wait for the next test, forming an automatic lowering and recycling structure of the impact hammer 201, reducing manual operation, improving the safety of the experiment, and being more time-saving and labor-saving.

[0030] Refer to Figure 1 , Figure 2 and Figure 5, the test box 1 is bolted to both the base 4 and the control box 3. The stop block 501, the bottom plate 502 and the test box 1 are bolted together. The hydraulic rod 503 is bolted to both the bottom plate 502 and the sample holder 505. During use, the height of the sample holder 505 can be adjusted according to the size of the sample 504 and the position where the impact hammer 201 drops. The hydraulic rod 503 drives the sample holder 505 to move up and down, so that the center of the sample 504 corresponds to the position where the impact hammer 201 drops, thereby effectively testing the toughness of the RPET material during impact. Moreover, the protective net 104 and the transparent plate 102 can form a protection around the impact hammer 201 to reduce splashing. In addition, the transparent plate 102 on the front of the test box 1 and the box door 101 facilitates the viewing of the test situation.

[0031] Working principle: After the rotating shaft 2042 of the RPET material impact toughness testing device is inserted and connected with the insertion slot 2045 on the front of the rotating seat 204, it is limited by the limiting slot 2041. The end cover 2043 and the clamping slot 2044 are connected by clamping, and the end cover 2043 and the rotating seat 204 are connected by bolts. The lower part of the impact hammer 201 is inserted into the first rotating slot 2046 and then sleeved outside the rotating shaft 2042. The lower part of the limiting frame 202 is inserted into the second rotating slot 2047 and then spline-fitted with the rotating shaft of the motor 205 and limited and locked by bolts. The motor 205, the rotating seat 204 and the test box 1 are all connected by bolts. The mounting frame 2033 is sleeved and connected with the limiting frame 202, the first telescopic cylinder 2032 and the second telescopic cylinder 2035 and limited and locked by bolts. The control box 3 is provided with a PLC controller electrically connected to the motor 205 and the hydraulic rod 503. During the test, the sample 504 is placed on the two groups of sample racks 505, and then the motor 205 is started, so that the limiting frame 202 drives the impact hammer 201 clamped between the first stop bar 2031 and the second stop bar 2034 to rotate to the falling angle. Then the first telescopic cylinder 2032 drives the first stop bar 2031 to retract, and the impact hammer 201 directly falls under the action of gravity, thus impacting on the sample 504, and thus completing the impact toughness test of the RPET material. After the test is completed, when the impact hammer 201 is stable, the motor 205 drives the limiting frame 202 to rotate to the back of the impact hammer 201, and then the first telescopic cylinder 2032 drives the first stop bar 2031 to extend, and the second telescopic cylinder 2035 drives to extend, forming a clamping structure on both sides of the impact hammer 201. Then the motor 205 drives the limiting frame 202 and the impact hammer 201 to rotate to the falling point and wait for the next test, forming an automatic lowering and recycling structure of the impact hammer 201, reducing manual operation, improving the safety of the experiment, being more time-saving and labor-saving. The test box 1 is connected to the base 4 and the control box 3 by bolts. The stop block 501, the bottom plate 502 and the test box 1 are connected by bolts. The hydraulic rod 503 is connected to the bottom plate 502 and the sample rack 505 by bolts. When in use, the height of the sample rack 505 can be adjusted according to the size of the sample 504 and the falling position of the impact hammer 201. The hydraulic rod 503 drives the sample rack 505 to move up and down, so that the center of the sample 504 corresponds to the falling position of the impact hammer 201, thereby effectively testing the toughness of the RPET material during impact. Moreover, the protective net 104 and the transparent plate 102 can form a protection around the impact hammer 201 to reduce splashing, and the transparent plate 102 on the front of the test box 1 and the box door 101 is convenient for viewing the test situation.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A RPET material impact toughness testing device, comprising a testing box (1), an impact assembly (2), a control box (3), a base (4) and a sample holder (5), characterized in that: The lower end of the test box (1) is connected to a base (4), the front side of the test box (1) is connected to a control box (3), the interior of the test box (1) is connected to an impact assembly (2) near the middle of the back, and the interior of the test box (1) is connected to a sample holder (5) at the middle of the bottom; A box door (101) is connected to the middle of the front of the test box (1), a handle (103) is connected to one side of the front of the box door (101), protective nets (104) are provided on both sides, the top and the back of the test box (1), and transparent plates (102) are provided on the front of the test box (1) and the box door (101); The impact assembly (2) is composed of an impact hammer (201), a limiting frame (202), a control assembly (203), a rotating seat (204) and a motor (205); the impact hammer (201) and the limiting frame (202) are connected inside the rotating seat (204); the motor (205) is connected to the middle of the back of the rotating seat (204); and the control assembly (203) is connected to the upper part of the limiting frame (202); The control component (203) is composed of a first stop bar (2031), a first telescopic cylinder (2032), a mounting frame (2033), a second stop bar (2034) and a second telescopic cylinder (2035), and the mounting frame (2033) is connected to the second telescopic cylinder (2035) and the first telescopic cylinder (2032) on both sides, the second telescopic cylinder (2035) is connected to the second stop bar (2034) at the front, and the first telescopic cylinder (2032) is connected to the first stop bar (2031) at the front; A plug-in slot (2045) is provided in the middle of the front of the rotating seat (204); a clamping slot (2044) is provided on the front of the rotating seat (204) near the plug-in slot (2045); a rotating shaft (2042) is connected inside the plug-in slot (2045); a plurality of groups of limiting slots (2041) are provided on the outside of the rotating shaft (2042) near the back; an end cover (2043) is provided on the front of the rotating shaft (2042); and a first rotating slot (2046) and a second rotating slot (2047) are provided on the outside of the rotating seat (204); The sample holder (5) is composed of a stopper (501), a bottom plate (502), a hydraulic rod (503), a sample (504) and a sample rack (505), and the sample rack (505) is provided at the lower part of the sample (504) near the front and back sides, the hydraulic rods (503) are connected to both sides of the lower end of the sample rack (505), the lower end of the hydraulic rod (503) is connected to the bottom plate (502), and a stopper (501) is provided on one side of the bottom plate (502).

2. The RPET material impact toughness testing device according to claim 1, characterized in that: The rotating shaft (2042) and the plug-in slot (2045) on the front side of the rotating seat (204) are plugged and connected, and are limited by the limiting slot (2041).

3. The RPET material impact toughness testing device according to claim 1, characterized in that: The end cover (2043) and the clamping groove (2044) are connected by clamping, and the end cover (2043) and the rotating seat (204) are connected by bolts.

4. The RPET material impact toughness testing device according to claim 1, characterized in that: The lower part of the impact hammer (201) is inserted into the first rotation groove (2046) and then sleeved on the outside of the rotating shaft (2042).

5. The RPET material impact toughness testing device according to claim 1, characterized in that: The lower portion of the limiting frame (202) is inserted into the second rotating groove (2047) and connected to the rotating shaft of the motor (205) through a spline fit and is locked by bolts. The motor (205), the rotating seat (204) and the test box (1) are all connected by bolts.

6. The RPET material impact toughness testing device according to claim 1, characterized in that: The mounting frame (2033), the limiting frame (202), the first telescopic cylinder (2032), and the second telescopic cylinder (2035) are all connected by sleeve connection and are locked by bolt limiting.

7. The RPET material impact toughness testing device according to claim 1, characterized in that: The test box (1), the base (4) and the control box (3) are all connected via bolts.

8. The RPET material impact toughness testing device according to claim 1, characterized in that: The control box (3) is provided with a PLC controller electrically connected to the motor (205) and the hydraulic rod (503).

9. The RPET material impact toughness testing device according to claim 1, characterized in that: The stopper (501), the bottom plate (502) and the test box (1) are connected via bolts, and the hydraulic rod (503), the bottom plate (502) and the sample rack (505) are connected via bolts.

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