Demoulding device special for aggregate polishing value test piece

Abstract

The utility model discloses a special demoulding device for aggregate polishing value test piece, which comprises a base, a polishing value test mould and a polishing value test cover, support frames are fixed on both sides of the surface of the base, a test piece separation screw rod penetrates through the surface of the support frame on the left side in a threaded manner, and one end of the test piece separation screw rod is rotatably connected with a test piece push plate; a cross beam is slidably connected to the surface of the supporting frame, a test cover separation lead screw penetrates through the surface of the supporting frame on the right side in a threaded mode, a test cover push plate is rotatably connected to one end of the test cover separation lead screw, a test mold fixing lead screw penetrates through the surface of the cross beam in a threaded mode, and a storage shell is fixed to the bottom of the test mold fixing lead screw; steel balls are slidably connected into the storage shell, and two test mold fixing plates are fixed to the top of the base. According to the utility model, more labor is saved when the test piece is demoulded, and the integrity and the demoulding efficiency of the demoulded test piece can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aggregate polishing value test pieces, in particular to a special demoulding device for aggregate polishing value test pieces. Background Art

[0002] Aggregate polishing test specimens are specific specimens used in the Aggregate Polishing Test. This test is used to evaluate the ability of coarse aggregate to resist tire polishing, that is, to measure the friction performance of the aggregate surface after being worn under conditions simulating actual road use.

[0003] Aggregate polishing value specimen preparation includes discharging, sand blowing, preparing epoxy resin mortar, filling epoxy resin mortar and curing. The existing specimen demoulding method is to lift the specimen by using a hammer to pad the wooden block, which easily damages the specimen and is inefficient. Utility Model Content

[0004] The purpose of the utility model is to provide a special demoulding device for aggregate polishing value test pieces, which can save labor when demoulding the test pieces and improve the integrity and demoulding efficiency of the test pieces after demoulding.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a special demolding device for aggregate polishing value test pieces, comprising a base, a polishing value test mold and a polishing value test cover, support frames are fixed on both sides of the base surface, a test piece separation screw is threaded through the support frame surface on the left side, one end of the test piece separation screw is rotatably connected to the test piece push plate, and a crossbeam is slidably connected to the support frame surface, a test cover separation screw is threaded through the support frame surface on the right side, one end of the test cover separation screw is rotatably connected to the test cover push plate, a test mold fixing screw is threaded through the crossbeam surface, a storage shell is fixed to the bottom of the test mold fixing screw, a steel ball is slidably connected to the inside of the storage shell, and two test mold fixing plates are fixed on the top of the base.

[0006] As a preferred demoulding device dedicated to aggregate polishing value test pieces of the present invention, the bottom position of the test cover push plate is higher than the top position of the test piece push plate.

[0007] As a preferred demoulding device dedicated to aggregate polishing value test pieces of the present invention, a baffle is fixed to the bottom of the storage shell, and the inner diameter of the baffle is smaller than the diameter of the steel ball.

[0008] As a preferred demoulding device dedicated to aggregate polishing value test pieces of the present invention, operating rods are passed through the surfaces of the test piece separation screw rod and the test cover separation screw rod.

[0009] As a preferred demoulding device for aggregate polishing value test pieces of the present invention, the test mold fixing plates on the left and right sides are at the same height.

[0010] As a preferred demoulding device for aggregate polishing value test pieces of the utility model, a receiving groove is provided on the surface of the support frame on the left side.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] The utility model has the following steps: after the polishing value test mold and the polishing value test cover are placed on the surface of the base, the polishing value test mold and the polishing value test cover will obtain a limiting effect between the test mold fixing plates on both sides; then the test mold fixing screw rod is rotated to move the test mold fixing screw rod downward, and the steel ball is pressed against the top surface of the polishing value test cover, thereby achieving a limiting and fixing effect for the top of the polishing value test cover; then the test cover separation screw rod is rotated to drive the test cover separation screw rod to drive the test cover pushing plate to gradually push the polishing value test cover to move to the left; during this process, the steel ball will rotate, thereby reducing the polishing value test cover The friction force on the top of the cover causes the polishing value test cover and the polishing value test mold to gradually loosen, and then the test piece separation screw is rotated to move the test piece push plate toward the right, so that the polishing value test mold and the test piece can also be loosened, and then the polishing value test mold and the polishing value test cover can be taken out, and the test piece can be taken out by gently tapping. Through the above design, the manual operation only needs to rotate multiple components to loosen the polishing value test mold, the polishing value test cover and the test piece, which makes it easier to take out the test piece and improves the integrity of the test piece after removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model after installation;

[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 3 This is a schematic structural diagram of a polishing value test mold and a polishing value test cover in the present invention;

[0016] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the present utility model.

[0017] In the figure: 1. Base; 2. Polishing value test mold; 3. Polishing value test cover; 4. Support frame; 5. Test piece separation screw; 6. Test piece push plate; 7. Crossbeam; 8. Test mold fixing plate; 9. Test cover separation screw; 10. Test cover push plate; 11. Test mold fixing screw; 12. Steel ball; 13. Storage shell; 14. Baffle; 15. Operating lever. DETAILED DESCRIPTION

[0018] See also Figure 1-4, a special demoulding device for aggregate polishing value test piece, including a base 1, a polishing value test mold 2 and a polishing value test cover 3, support frames 4 are fixed on both sides of the surface of the base 1, a test piece separation screw rod 5 is threaded through the surface of the left support frame 4, one end of the test piece separation screw rod 5 is rotatably connected to the test piece push plate 6, a crossbeam 7 is slidably connected to the surface of the support frame 4, a test cover separation screw rod 9 is threaded through the surface of the right support frame 4, one end of the test cover separation screw rod 9 is rotatably connected to the test cover push plate 10, a test mold fixing screw rod 11 is threaded through the surface of the crossbeam 7, a storage shell 13 is fixed to the bottom of the test mold fixing screw rod 11, a steel ball 12 is slidably connected to the inside of the storage shell 13, and two test mold fixing plates 8 are fixed on the top of the base 1;

[0019] After the polishing value test mold 2 and the polishing value test cover 3 are placed on the surface of the base 1, the polishing value test mold 2 and the polishing value test cover 3 will be limited between the test mold fixing plates 8 on both sides, and then the test mold fixing screw 11 is rotated to move the test mold fixing screw 11 downward, and the steel ball 12 is pressed against the top surface of the polishing value test cover 3, thereby playing a limiting and fixing effect on the top of the polishing value test cover 3, and then the test cover separation screw 9 is rotated to make the test cover separation screw 9 drive the test cover push plate 10 to gradually push the polishing value test cover 3 to move to the left. During this process, the steel ball 12 will rotate to reduce the wear and tear. The friction force on the top of the polishing value test cover 3 causes the polishing value test cover 3 to gradually loosen with the polishing value test mold 2, and then the specimen separation screw 5 is rotated to move the specimen push plate 6 toward the right, so that the polishing value test mold 2 and the specimen can also be loosened, and then the polishing value test mold 2 and the polishing value test cover 3 can be taken out, and the specimen can be taken out by gently tapping. Through the above design, the manual operation only needs to rotate multiple components to loosen the polishing value test mold 2, the polishing value test cover 3 and the specimen, which saves effort when taking out the specimen and improves the integrity of the specimen after it is taken out.

[0020] Furthermore, the bottom position of the test cover push plate 10 is higher than the top position of the test piece push plate 6;

[0021] With this design, the test cover pushing plate 10 can only be pushed to the surface of the polished test cover 3 .

[0022] Furthermore, a baffle 14 is fixed to the bottom of the storage shell 13, and the inner diameter of the baffle 14 is smaller than the diameter of the steel ball 12;

[0023] The baffle 14 can limit the steel ball 12 to prevent the steel ball 12 from escaping from the inside of the baffle 14 .

[0024] Furthermore, an operating rod 15 is passed through the surface of the specimen separation screw rod 5 and the test cover separation screw rod 9;

[0025] The operating rod 15 enables the operator to more easily rotate the test piece separation screw rod 5 and the test cover separation screw rod 9, thereby making them more labor-saving when used.

[0026] Furthermore, the test mold fixing plates 8 on the left and right sides are at the same height;

[0027] This design makes the limiting effect of the polishing value test mold 2 between the test mold fixing plates 8 on both sides more uniform, avoiding the situation where the polishing value test mold 2 rotates toward one side when the polishing value test mold 2 is demoulded due to the unilateral limiting being too low.

[0028] Furthermore, a storage slot is provided on the surface of the left support frame 4;

[0029] By setting up the receiving groove, when the polishing value test mold 2 and the polishing value test cover 3 are placed on the surface of the base 1, the specimen separation screw 5 can be rotated first to make the specimen push plate 6 enter the interior of the receiving groove, so that the specimen push plate 6 will not interfere with the normal placement of the polishing value test mold 2 and the polishing value test cover 3.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements 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 special demoulding device for aggregate polishing value test piece, comprising a base (1), a polishing value test mold (2) and a polishing value test cover (3), characterized in that: Support frames (4) are fixed on both sides of the surface of the base (1), a test piece separation screw rod (5) is threadedly penetrated on the surface of the left support frame (4), one end of the test piece separation screw rod (5) is rotatably connected to the test piece push plate (6), and a crossbeam (7) is slidably connected on the surface of the support frame (4), a test cover separation screw rod (9) is threadedly penetrated on the surface of the right support frame (4), one end of the test cover separation screw rod (9) is rotatably connected to the test cover push plate (10), a test mold fixing screw rod (11) is threadedly penetrated on the surface of the crossbeam (7), a storage shell (13) is fixed at the bottom of the test mold fixing screw rod (11), a steel ball (12) is slidably connected inside the storage shell (13), and two test mold fixing plates (8) are fixed on the top of the base (1).

2. The special demoulding device for aggregate polishing value test piece according to claim 1, characterized in that: The bottom position of the test cover push plate (10) is higher than the top position of the test piece push plate (6).

3. The special demoulding device for aggregate polishing value test piece according to claim 1, characterized in that: A baffle (14) is fixed to the bottom of the storage shell (13), and the inner diameter of the baffle (14) is smaller than the diameter of the steel ball (12).

4. The special demoulding device for aggregate polishing value test piece according to claim 1, characterized in that: An operating rod (15) is passed through the surfaces of the test piece separation screw rod (5) and the test cover separation screw rod (9).

5. The special demoulding device for aggregate polishing value test piece according to claim 1, characterized in that: The test mold fixing plates (8) on the left and right sides are at the same height.

6. The special demoulding device for aggregate polishing value test piece according to claim 1, characterized in that: A storage groove is provided on the surface of the support frame (4) on the left side.

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