Tension and compression testing machine for modified plastic particles

Abstract

The utility model relates to the technical field of modified plastic particle experimental equipment, and particularly discloses a modified plastic particle tension and compression testing machine which comprises a cabinet body, a mounting plate, a connecting block I and a pressure sensor, an operation cavity is formed in the upper end of the cabinet body, a door plate is hinged to the outer end of the operation cavity, and a dust blowing system is arranged on the upper side of the inner end of the operation cavity; the upper end of the cabinet body is provided with an operation cavity, one end in the operation cavity is fixedly provided with a fixing rod, the other end of the operation cavity is rotatably connected with a threaded rod, the number of the installation plates is two, the pressure sensor is installed between the two installation plates and located in the operation cavity, and the outer wall of each installation plate is slidably connected with a push rod. Dust is prevented from entering the operation cavity by closing the door plate, a dust blowing system is arranged on the upper side of the inner end of the operation cavity, air is blown to clean parts in the operation cavity through an air nozzle, and chippings generated by explosion of plastic particles are blown away from the parts or the operation cavity by opening the door plate.

Description

Technical Field

[0001] The utility model relates to the technical field of modified plastic particle experimental equipment, in particular to a modified plastic particle tension and compression testing machine. Background Art

[0002] Modified plastics refer to plastic products that are modified by filling, blending, reinforcing and other methods on the basis of general plastics and engineering plastics to improve their flame retardancy, strength, impact resistance, toughness and other properties. In order to understand the tensile and compressive properties of modified plastic particles, tensile and extrusion tests are often carried out on modified plastic particles using tensile and compression testing machines to obtain accurate values of the compressive and tensile strength of the modified plastic particles.

[0003] However, the existing tensile and compression testing machines still have the disadvantage of being mobile during use. First of all, regardless of whether the existing tensile and compression testing machines are in use, the entire tensile and compression testing machine is exposed to the air holes and is easily adsorbed by dust. Since the tensile and compression testing machine is a precision instrument, when too much dust enters, it will affect the accuracy of the data. Utility Model Content

[0004] The purpose of the present invention is to provide a modified plastic particle tension and compression testing machine to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a modified plastic particle tension and compression testing machine, comprising: a cabinet, a mounting plate, a first connecting block, and a pressure sensor; an operating chamber is provided at the upper end of the cabinet, a door panel is hingedly connected to the outer end of the operating chamber, a dust blowing system is provided on the upper side of the inner end of the operating chamber, a fixing rod is fixedly installed at one end of the operating chamber, and a threaded rod is rotatably connected to the other end; two mounting plates are provided, the pressure sensor is installed between the two mounting plates and is located in the operating chamber, a push rod is slidably connected to the outer wall of each mounting plate, a clamping plate first is fixedly installed at one end of the push rod, and a clamping plate second is installed at the other end of the mounting plate through a second connecting block;

[0006] The second clamping plate is slidably connected to the fixing rod through a guide sleeve, and the mounting plate is threadedly connected to the threaded rod through a threaded sleeve.

[0007] Preferably, a fixing block is fixedly mounted on one end of the mounting plate, and an end of the push rod away from the clamping plate slides through the fixing block and is fixedly mounted on the push block.

[0008] Preferably, a rack is fixedly mounted on the outer side wall of the push block, and the outer walls of the upper and lower ends of the rack are meshed with gears, which are rotatably connected to the side wall of the mounting plate via a rotating shaft.

[0009] Preferably, a drive motor is fixedly mounted on one end of the mounting plate away from the gear, and an output end of the drive motor is fixedly connected to one of the rotating shafts via a coupling.

[0010] Preferably, the first connecting block is fixedly installed on the side wall of the mounting plate away from the first clamping plate, the outer wall of the threaded sleeve is fixedly connected to the outer end of the first connecting block, and the inner wall of the threaded sleeve is threadedly connected to the outer wall of the threaded rod.

[0011] Preferably, the second connecting block is L-shaped, one end of the second connecting block is fixedly installed on the outer wall of the mounting plate, and the other end is fixedly installed on the outer wall of the second clamping plate. Both the second clamping plate and the first clamping plate are arc-shaped and located on the same horizontal line. Anti-slip pads are fixedly installed on the inner walls of the second clamping plate and the first clamping plate.

[0012] Preferably, one end of the guide sleeve is fixedly installed with a third connecting block, and the other end of the third connecting block is fixedly installed on the outer wall of the second connecting block.

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

[0014] By providing an operation cavity at the upper end of the cabinet body, a door panel is hinged to the outer end of the operation cavity, and an observation window is provided on the door panel. By closing the door panel, dust is prevented from entering the operation cavity. A dust blowing system is provided on the upper side of the inner end of the operation cavity, and the components inside the operation cavity are blown and cleaned through air nozzles. By opening the door panel, the debris generated by the explosion of plastic particles is blown away from the components or the operation cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a front view schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a front view schematic diagram of a partial structure of the present utility model;

[0017] Figure 3 is a front view schematic diagram of the mounting block of the present utility model;

[0018] Figure 4 is a top view of the first clamping plate of the present utility model.

[0019] In the figure: 1, cabinet body; 101, door panel; 102, dust blowing system; 2, fixed rod; 3, threaded rod; 4, mounting plate; 5, fixed block; 6, push rod; 7, push block; 8, rack; 9, gear; 10, drive motor; 11, first clamping plate; 12, first connecting block; 13, threaded sleeve; 14, second connecting block; 15, second clamping plate; 16, third connecting block; 17, guide sleeve; 18, anti-slip pad; 19, pressure sensor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to clearly and completely describe the purpose and technical solution of the present utility model, and make the advantages more clearly understood, the following further details the embodiments of the present utility model in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all of the embodiments, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0021] Please refer to Figures 1 - 4 , the present utility model provides a technical solution: a modified plastic particle tension and compression testing machine, including: a cabinet 1, a mounting plate 4, a first connecting block 12 and a pressure sensor 19. An operation chamber is provided at the upper end of the cabinet 1. A door panel 101 is hinged to the outer end of the operation chamber. An observation window is provided on the door panel 101. By closing the door panel 101, dust is prevented from entering the operation chamber. A dust blowing system 102 is provided on the upper side of the inner end of the operation chamber. The dust blowing system 102 includes an air duct, an air nozzle and an air pump. The components inside the operation chamber are blown and cleaned through the air nozzle (the dust blowing system 102 is a mature existing technology, so it will not be elaborated here). A fixed rod 2 is fixedly installed at one end inside the operation chamber, and a threaded rod 3 is rotatably connected at the other end. A servo motor (not shown in the figure) is installed inside the cabinet 1. The output end of the servo motor is fixedly connected to the lower end of the threaded rod 3 through a coupling. The upper and lower ends of the threaded rod 3 are symmetrically threaded. Two threaded sleeves 13 are symmetrically threaded on the outer walls of the upper and lower ends of the threaded rod 3.

[0022] There are two mounting plates 4. The pressure sensor 19 is installed between the two mounting plates 4 and is located inside the operation chamber. A push rod 6 is slidably connected to the outer wall of each mounting plate 4. A first clamping plate 11 is fixedly installed at one end of the push rod 6. A fixed block 5 is fixedly installed at one end of the mounting plate 4. The end of the push rod 6 away from the first clamping plate 11 slides through the fixed block 5 and is fixedly installed with a push block 7. A rack 8 is fixedly installed on the outer side wall of the push block 7. The upper and lower outer walls of the rack 8 are meshed with a gear 9. The gear 9 is rotatably connected to the side wall of the mounting plate 4 through a rotating shaft. The rotating shaft and the center of one end of the gear 9 are fixedly connected. The rotating shaft is rotatably connected to the side wall of the mounting plate 4. A driving motor 10 is fixedly installed at one end of the mounting plate 4 away from the gear 9. The output end of the driving motor 10 is fixedly connected to one of the rotating shafts through a coupling. The driving motor 10 can rotate forward and backward, thereby driving the gear 9 to move on the rack 8, driving the push block 7 to drive the push rod 6 to move back and forth, so as to drive the first clamping plate 11 to move towards the side of the second clamping plate 15 or away from the second clamping plate 15, facilitating the taking and placing of plastic particles.

[0023] The other end of the mounting plate 4 is provided with a second clamping plate 15 through a second connecting block 14. The second connecting block 14 is L-shaped. One end of the second connecting block 14 is fixedly installed on the outer wall of the mounting plate 4, and the other end is fixedly installed on the outer wall of the second clamping plate 15. Both the second clamping plate 15 and the first clamping plate 11 are arc-shaped and are located on the same horizontal line, enabling the first clamping plate 11 and the second clamping plate 15 to move on the same straight line to clamp or release the plastic particles. Anti-slip pads 18 are fixedly installed on the inner walls of the second clamping plate 15 and the first clamping plate 11, which can increase the friction force between the plastic particles and the clamping plates.

[0024] The second clamping plate 15 is slidably connected to the fixed rod 2 through a guide sleeve 17. The mounting plate 4 is threadedly connected to the threaded rod 3 through a threaded sleeve 13. The first connecting block 12 is fixedly installed on the side wall of the mounting plate 4 at the end away from the first clamping plate 11. The outer wall of the threaded sleeve 13 is fixedly connected to the outer end of the first connecting block 12, and the inner wall of the threaded sleeve 13 is threadedly connected to the outer wall of the threaded rod 3. One end of the guide sleeve 17 is fixedly installed with a third connecting block 16, and the other end of the third connecting block 16 is fixedly installed on the outer wall of the second connecting block 14. When the threaded rod 3 rotates, it drives the two threaded sleeves 13 to drive the two mounting plates 4 and the clamped plastic particles to approach or move away from each other. At the same time, the guide sleeve 17 slides on the fixed rod 2, thereby realizing the tensile and compressive tests on the plastic particles.

[0025] 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 principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A modified plastic particle tensile and compression testing machine, comprising: Cabinet body (1), mounting plate (4), first connecting block (12) and pressure sensor (19). An operation cavity is arranged at the upper end of the cabinet body (1). A door panel (101) is hinged to the outer end of the operation cavity. A dust blowing system (102) is arranged on the upper side of the inner end of the operation cavity. It is characterized in that: A fixed rod (2) is fixedly installed at one end inside the operation cavity, and a threaded rod (3) is rotatably connected to the other end. There are two mounting plates (4). The pressure sensor (19) is installed between the two mounting plates (4) and is located inside the operation cavity. A push rod (6) is slidably connected to the outer wall of each mounting plate (4). One end of the push rod (6) is fixedly installed with a first clamping plate (11). The other end of the mounting plate (4) is installed with a second clamping plate (15) through a second connecting block (14). The second clamping plate (15) is slidably connected to the fixed rod (2) through a guide sleeve (17). The mounting plate (4) is threadedly connected to the threaded rod (3) through a threaded sleeve (13).

2. The modified plastic particle tension and compression testing machine according to claim 1, wherein: A fixed block (5) is fixedly installed at one end of the mounting plate (4). The end of the push rod (6) away from the first clamping plate (11) slidably passes through the fixed block (5) and is fixedly installed with a push block (7).

3. The modified plastic particle tension and compression testing machine according to claim 2, characterized in that: A rack (8) is fixedly installed on the outer side wall of the push block (7). The outer walls of the upper and lower ends of the rack (8) are meshed with a gear (9). The gear (9) is rotatably connected to the side wall of the mounting plate (4) through a rotating shaft.

4. The modified plastic particle tension and compression testing machine according to claim 3, characterized in that: A driving motor (10) is fixedly installed at the end of the mounting plate (4) away from the gear (9). The output end of the driving motor (10) is fixedly connected to one of the rotating shafts through a coupling.

5. A modified plastic particle tensile and compressive testing machine according to claim 1, characterized in that: The first connecting block (12) is fixedly installed on the side wall of the end of the mounting plate (4) away from the first clamping plate (11). The outer wall of the threaded sleeve (13) is fixedly connected to the outer end of the first connecting block (12). The inner wall of the threaded sleeve (13) is threadedly connected to the outer wall of the threaded rod (3).

6. The modified plastic particle tensile and compressive testing machine according to claim 5, characterized in that: The second connecting block (14) is L-shaped. One end of the second connecting block (14) is fixedly installed on the outer wall of the mounting plate (4), and the other end is fixedly installed on the outer wall of the second clamping plate (15). Both the second clamping plate (15) and the first clamping plate (11) are arc-shaped and are on the same horizontal line. Anti-slip pads (18) are fixedly installed on the inner walls of the second clamping plate (15) and the first clamping plate (11).

7. A modified plastic particle tensile and compressive testing machine according to claim 1, characterized in that: One end of the guide sleeve (17) is fixedly installed with a third connecting block (16). The other end of the third connecting block (16) is fixedly installed on the outer wall of the second connecting block (14).

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