Marshall test piece demolding machine

Abstract

The utility model relates to the technical field of Marshall test equipment, in particular to a Marshall test piece demolding machine. Comprising a base assembly, an adjusting assembly and a demolding assembly, the base assembly comprises a base platform, the adjusting assembly comprises a lead screw, the demolding assembly comprises a demolding clamping plate, the output end of an air cylinder is connected with a mounting block, the end, away from the air cylinder, of the mounting block is connected with a demolding top plate, and a limiting rod is arranged on the inner side of a supporting edge block. One end of the compression spring is connected with a clamping side plate, and the end, away from the compression spring, of the clamping side plate is connected with an anti-skid cushion layer. Through the arrangement of the clamping plate sliding groove, a channel used for clamping the side plate to slide into the clamping plate inner groove is formed, and then the clamping side plate slides into the clamping plate inner groove so that the demolding clamping plate and the non-slip mat layer can clamp and fix the Marshall test mold at the same time; and then the air cylinder is started again, and the Marshall test piece is ejected out of the test mold through ascending of the demolding ejection plate.

Description

Technical Field

[0001] The utility model relates to the technical field of Marshall test equipment, in particular to a Marshall test piece demoulding machine. Background Art

[0002] Demolding is an important part of Marshall specimen preparation. At present, the commonly used Marshall specimen demoulding machines at home and abroad mainly include manual demoulders with jacks, electric demoulders and hydraulic demoulders, etc., which can push out cylindrical specimens without damage. There are push-out rings in the sizes of standard cylindrical specimens and large cylindrical specimens.

[0003] The existing patent document CN 214373765 U discloses a Marshall specimen demoulding machine, which comprises a base and at least two support seats evenly distributed on the base along a circumference, a radially movable clamping plate is connected to the support seat, and a top plate fixed to the base by a lifting mechanism is provided above the base, and the center of the top plate is located on the mid-vertical line of the circle surrounded by the clamping plate; when the device of this application is in use, the process of shaking the jack handle and continuing to tighten the spiral rod so that the top plate rises to eject the Marshall specimen from the test mold is rather cumbersome, and at the same time, the fixing effect of the Marshall test mold cannot be guaranteed by relying solely on the clamping plate to clamp and fix it. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a Marshall specimen demoulding machine to solve the problem that the process of raising the top plate to eject the Marshall specimen from the test mold is rather cumbersome, and the fixing effect of the Marshall test mold cannot be guaranteed by relying solely on the clamping plate to clamp and fix the Marshall test mold. The demoulding clamping plate and the anti-slip pad layer are used to clamp and fix the Marshall test mold at the same time by sliding the clamping side plate into the inner groove of the clamping plate. The cylinder drives the demoulding top plate to rise to lift the Marshall test mold to a height parallel to the two demoulding clamping plates, and then the Marshall test mold is demoulded.

[0005] To achieve the above objectives, the utility model adopts the following technical solution: a Marshall specimen demoulding machine, comprising a base assembly, an adjusting assembly and a demoulding assembly, the base assembly comprising a base platform, the adjusting assembly comprising a screw rod, the demoulding assembly comprising a demoulding card plate, the top of the base platform is connected with a supporting side plate, one end of the base platform is connected with a supporting edge block, a cylinder is arranged on the top of the base platform, the output end of the cylinder is connected with a mounting block, the end of the mounting block away from the cylinder is connected with a demoulding top plate, one end of the screw rod is connected with a hand wheel, a limiting rod is arranged on the inner side of the supporting edge block, one end of the limiting rod is connected with the limiting block, a card plate slide groove is opened on the inner side of the demoulding card plate, a card plate inner groove is arranged on the inner side of the card plate, a compression spring is arranged on the inner side of the card plate inner groove, one end of the compression spring is connected with a clamping side plate, and one end of the clamping side plate away from the compression spring is connected with an anti-slip pad.

[0006] The beneficial effects of the utility model are as follows: when in use, the two demoulding pallets are moved to the farthest point from the center point, and then the Marshall test mold is placed on the demoulding top plate, the operation of the cylinder is started, and then the cylinder drives the demoulding top plate to rise to lift the Marshall test mold to a height parallel to the two demoulding pallets, and then the Marshall test mold is demoulded. When the anti-slip pad layer first contacts and fits with the outer wall of the Marshall test mold, the demoulding pallet continues to approach the Marshall test mold under the action of force, and then the anti-slip pad layer is subjected to resistance and drives the clamping side plate to slide into the inner groove of the pallet. In this process, the clamping side plate squeezes the compression spring and uses compression deformation. At the same time, the elastic force generated by the compression deformation of the compression spring pushes the anti-slip pad layer to fit tightly to the outer wall of the Marshall test mold through the clamping side plate, thereby ensuring the effect of the demoulding component in clamping and fixing the Marshall test mold.

[0007] To improve the stability of the connection between the base platform and the supporting side panels:

[0008] As a further improvement of the above technical solution: the supporting side panels are two in total and are symmetrically arranged, the bottom of the supporting side panels are symmetrically connected with reinforcing ribs, and the two ends of the supporting side blocks are symmetrically connected with reinforcing ribs.

[0009] The beneficial effect of this improvement is that by setting the reinforcing ribs, the connection area between the base platform and the supporting side panels, as well as the connection area between the supporting side blocks and the supporting side panels can be increased, thereby improving the stability of the connection between the base platform and the supporting side panels, as well as the stability of the connection between the supporting side panels and the supporting side blocks.

[0010] In order to drive the demoulding top plate to rise, the cylinder lifts the Marshall test mold to a height parallel to the two demoulding pallets:

[0011] As a further improvement of the above technical solution: the cylinder is electrically connected to the operation panel, and the center of the cylinder is located above the center point of the base platform.

[0012] The beneficial effect of this improvement is: when in use, the two demoulding pallets are moved to the farthest point from the center point, and then the Marshall trial mold is placed on the demoulding top plate, the operation of the cylinder is started, and then the cylinder drives the demoulding top plate to rise to lift the Marshall trial mold to a height parallel to the two demoulding pallets, and then the Marshall trial mold is demoulded.

[0013] In order to adjust the demoulding pallet closer to the Marshall test mold:

[0014] As a further improvement of the above technical solution: the adjustment components have two groups and are symmetrically arranged. The end of the screw rod away from the handwheel passes through the supporting side plate and the supporting edge block and extends to be rotatably connected to the demoulding clamping plate. The screw rod is also threadedly rotatably connected to the supporting side plate and the supporting edge block.

[0015] The beneficial effect of this improvement is that after the Marshall test mold is raised to a preset height, the hand wheel is held in turn and the screw rod is rotated to adjust the demoulding clamping plate closer to the Marshall test mold.

[0016] In order to adjust the position of the demoulding pallet:

[0017] As a further improvement of the above technical solution: the limit rods are used together in a group of two, and the two limit rods in the same group are symmetrically arranged at the upper and lower ends of the screw rod. The end of the limit rod away from the limit block sequentially penetrates the supporting side plate, the supporting edge block and is connected to the demoulding card plate, and the limit rod is also slidably connected to the supporting side plate and the supporting edge block.

[0018] The beneficial effect of this improvement is that when the hand wheel is held to rotate the screw rod, the demoulding pallet moves linearly under the joint action of the screw rod and the limit rod, thereby realizing the adjustment of the use position of the demoulding pallet.

[0019] In order to enable the demoulding plate and the anti-slip pad to clamp and fix the Marshall test mold at the same time:

[0020] As a further improvement of the above technical solution: the clamping side plate is slidably connected with the inner groove of the pallet through the pallet slide groove, the pallet slide groove is communicated with the inner groove of the pallet, and the demoulding components have two groups and are symmetrically arranged.

[0021] The beneficial effect of this improvement is as follows: through the setting of the pallet slide groove, a channel is provided for the clamping side plate to slide into the inner groove of the pallet, and then the demoulding pallet and the anti-slip pad are used to clamp and fix the Marshall test mold at the same time through the sliding of the clamping side plate into the inner groove of the pallet, and then the cylinder is started again and the Marshall test piece is ejected from the test mold by the rising of the demoulding top plate.

[0022] In order to ensure the effectiveness of the demoulding components in clamping and fixing the Marshall test mold:

[0023] As a further improvement of the above technical solution: one end of the compression spring away from the clamping side plate is connected to the inner wall of the inner groove of the clamping plate, and a plurality of clamping side plates are arranged on the inner side of the demoulding clamping plate.

[0024] The beneficial effect of this improvement is: after the anti-skid pad layer first contacts and fits with the outer wall of the Marshall test mold, the demolding pallet continues to approach the Marshall test mold under the force, and then the anti-skid pad layer is subjected to resistance and drives the clamping side plate to slide into the inner groove of the pallet. In this process, the clamping side plate squeezes the compression spring and uses compression deformation. At the same time, the elastic force generated by the compression deformation of the compression spring pushes the anti-skid pad layer to fit tightly against the outer wall of the Marshall test mold through the clamping side plate, thereby ensuring the effect of the demolding assembly in clamping and fixing the Marshall test mold.

[0025] In order to increase the friction between the Marshall test mold and the anti-slip pad:

[0026] As a further improvement of the above technical solution: the anti-skid pad layer is a rubber layer with an arc-shaped cross-section when viewed from above, and two anti-skid pad layers located at the same height are used together.

[0027] The beneficial effect of this improvement is that when the two clamping side plates gradually approach the Marshall test mold, the anti-skid pad layer first contacts and fits with the outer wall of the Marshall test mold, and then the friction between the two clamping side plates and the Marshall test mold is increased through the anti-skid pad layer, thereby ensuring safety during the demoulding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a front structural schematic diagram of the utility model.

[0029] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0030] Figure 3 It is a schematic diagram of the top cross-sectional structure of the demoulding pallet of the utility model.

[0031] Figure 4 It is a schematic diagram of the three-dimensional structure of the demoulding pallet of the utility model.

[0032] Figure 5 It is a structural schematic diagram of the clamping side plate of the utility model.

[0033] In the figure: 1. Base assembly; 11. Base platform; 12. Support side panel; 13. Reinforcement ribs; 14. Support side block; 15. Mounting block; 16. Demolding top plate; 17. Cylinder; 2. Adjustment assembly; 21. Screw rod; 22. Hand wheel; 23. Limit rod; 24. Limit block; 3. Demolding assembly; 31. Demolding pallet; 32. Pallet slide groove; 33. Compression spring; 34. Clamping side panel; 35. Anti-slip pad; 36. Pallet inner groove. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0035] like Figure 1-5As shown, a Marshall specimen demoulding machine comprises a base assembly 1, an adjustment assembly 2, and a demoulding assembly 3, wherein the base assembly 1 comprises a base platform 11, the adjustment assembly 2 comprises a screw rod 21, the demoulding assembly 3 comprises a demoulding clamping plate 31, the top of the base platform 11 is connected with a supporting side plate 12, one end of the base platform 11 is connected with a supporting side block 14, a cylinder 17 is arranged on the top of the base platform 11, the output end of the cylinder 17 is connected with a mounting block 15, the end of the mounting block 15 away from the cylinder 17 is connected with a demoulding top plate 16, one end of the screw rod 21 is connected with a hand wheel 22, a limiting rod 23 is arranged on the inner side of the supporting side block 14, one end of the limiting rod 23 A limit block 24 is connected, a card slot 32 is provided on the inner side of the demoulding card plate 31, a card inner groove 36 is provided on the inner side of the demoulding card plate 31, a compression spring 33 is provided on the inner side of the card inner groove 36, one end of the compression spring 33 is connected to a clamping side plate 34, and the end of the clamping side plate 34 away from the compression spring 33 is connected to an anti-slip pad 35, the supporting side plates 12 have two and are symmetrically arranged, the bottom of the supporting side plates 12 are symmetrically connected to reinforcing ribs 13, and the two ends of the supporting side blocks 14 are symmetrically connected to reinforcing ribs 13; by setting the reinforcing ribs 13, the connection area between the base platform 11 and the supporting side plates 12, and the support side blocks 14 and the supporting side plates 12 can be increased. The connection area is improved, thereby improving the stability of the connection between the base platform 11 and the supporting side plate 12, and the stability of the connection between the supporting side plate 12 and the supporting edge block 14. The cylinder 17 is electrically connected to the operation panel, and the center of the cylinder 17 is located above the center point of the base platform 11; when in use, the two demoulding clamping plates 31 are moved to the farthest point from the center point, and then the Marshall test mold is placed on the demoulding top plate 16, and the operation of the cylinder 17 is started. Then the cylinder 17 drives the demoulding top plate 16 to rise and lift the Marshall test mold to a height parallel to the two demoulding clamping plates 31, and then the Marshall test mold is demoulded. There are two groups of adjustment components 2 and they are symmetrically arranged. The end of the screw rod 21 away from the handwheel 22 passes through the support The side support plate 12 is connected to the support edge block 14 and extends to be rotatably connected with the demoulding card plate 31, and the screw rod 21 is simultaneously connected to the support side plate 12 and the support edge block 14 through a threaded rotation; after the Marshall test mold is raised to a preset height, the hand wheel 22 is sequentially held and the screw rod 21 is rotated to adjust the demoulding card plate 31 closer to the Marshall test mold, and the limit rods 23 are used together in a group of two, and the two limit rods 23 of the same group are symmetrically arranged at the upper and lower ends of the screw rod 21, and the end of the limit rod 23 away from the limit block 24 sequentially penetrates the support side plate 12 and the support edge block 14 and is connected to the demoulding card plate 31, and the limit rod 23 is simultaneously connected to the support side plate 12 and the support edge block 14 in a sliding manner;When the hand wheel 22 is held to rotate the screw rod 21, the demoulding card plate 31 moves linearly under the joint action of the screw rod 21 and the limit rod 23, thereby adjusting the use position of the demoulding card plate 31. The clamping side plate 34 is slidably connected to the card plate inner groove 36 through the card plate slide groove 32. The card plate slide groove 32 is connected to the card plate inner groove 36. The demoulding assembly 3 has two groups and is symmetrically arranged. The card plate slide groove 32 is arranged to clamp the side plate 34 to the card plate inner groove. The slide of the clamping side plate 34 into the inner groove 36 of the card plate is used to clamp and fix the Marshall test mold with the anti-skid pad layer 35 at the same time, and then the cylinder 17 is started again and the Marshall test piece is ejected from the test mold through the demoulding top plate 16. The end of the compression spring 33 away from the clamping side plate 34 is connected to the inner wall of the inner groove 36 of the card plate. A plurality of clamping side plates 34 are arranged on the inner side of the demoulding card plate 31. After the anti-skid pad layer 35 first contacts and fits with the outer wall of the Marshall test mold, the demoulding card plate 31 continues to approach the Marshall test mold under the force, and then the anti-skid pad layer 35 is subjected to resistance and drives the clamping side plate 34 to slide into the inner groove 36 of the card plate. In this process, the clamping side plate 34 squeezes the compression spring 33 and uses compression deformation. At the same time, the elastic force generated by the compression deformation of the compression spring 33 pushes the anti-skid pad layer 35 to fit tightly to the outer wall of the Marshall test mold through the clamping side plate 34, thereby ensuring the effect of the demoulding component 3 on clamping and fixing the Marshall test mold. The anti-skid pad layer 35 is a rubber layer with an arc-shaped cross-section in a top view, and the two anti-skid pad layers 35 at the same height are used together; when the two clamping side plates 34 gradually approach the Marshall test mold, the anti-skid pad layer 35 first contacts and fits with the outer wall of the Marshall test mold, and then increases the friction between the anti-skid pad layer 35 and the Marshall test mold, thereby ensuring the safety during the demoulding process. ;

[0036] The working principle of the utility model is as follows: when in use, the two demoulding clamping plates 31 are moved to the farthest point from the center point, and then the Marshall test mold is placed on the demoulding top plate 16, and the operation of the cylinder 17 is started, and then the cylinder 17 drives the demoulding top plate 16 to rise and lift the Marshall test mold to a height parallel to the two demoulding clamping plates 31, and the hand wheel 22 is held in turn and the screw rod 21 is rotated, and the demoulding clamping plate 31 moves linearly under the joint action of the screw rod 21 and the limit rod 23, and when the two clamping side plates 3 When gradually approaching the Marshall test mold, the anti-skid pad layer 35 first contacts and fits with the outer wall of the Marshall test mold, and then the friction between the anti-skid pad layer 35 and the Marshall test mold is increased to ensure the safety during the demoulding process. When the anti-skid pad layer 35 first contacts and fits with the outer wall of the Marshall test mold, the demoulding card plate 31 continues to approach the Marshall test mold under the force, and then the anti-skid pad layer 35 is resisted and drives the clamping side plate 34 to slide into the inner groove 36 of the card plate. In this process The middle clamping side plate 34 squeezes the compression spring 33 and uses compression deformation. At the same time, the elastic force generated by the compression deformation of the compression spring 33 pushes the anti-skid pad 35 to fit tightly against the outer wall of the Marshall test mold through the clamping side plate 34, thereby ensuring the effect of the demoulding component 3 on clamping and fixing the Marshall test mold. The card plate slide groove 32 is provided to provide a channel for the clamping side plate 34 to slide into the card plate inner groove 36, and then the sliding of the clamping side plate 34 into the card plate inner groove 36 is used to make the demoulding card The plate 31 and the anti-slip pad layer 35 simultaneously clamp and fix the Marshall test mold, and then the cylinder 17 is started again and the demoulding top plate 16 rises to eject the Marshall test piece from the test mold. By setting the reinforcing ribs 13, the connection area between the base platform 11 and the supporting side plate 12, as well as the connection area between the supporting side block 14 and the supporting side plate 12 can be increased, thereby improving the stability of the connection between the base platform 11 and the supporting side plate 12, as well as the stability of the connection between the supporting side plate 12 and the supporting side block 14.

[0037] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0038] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A Marshall specimen demoulding machine, comprising a base assembly (1), an adjustment assembly (2), and a demoulding assembly (3), wherein the base assembly (1) comprises a base platform (11), the adjustment assembly (2) comprises a screw rod (21), and the demoulding assembly (3) comprises a demoulding plate (31), characterized in that: The top of the base platform (11) is connected to a supporting side plate (12), one end of the base platform (11) is connected to a supporting side block (14), a cylinder (17) is arranged on the top of the base platform (11), an output end of the cylinder (17) is connected to a mounting block (15), an end of the mounting block (15) away from the cylinder (17) is connected to a demoulding top plate (16), one end of the screw rod (21) is connected to a hand wheel (22), and the inner side of the supporting side block (14) is provided with a A limit rod (23), one end of the limit rod (23) is connected to a limit block (24), a cardboard slide groove (32) is provided on the inner side of the demoulding cardboard (31), a cardboard inner groove (36) is provided on the inner side of the demoulding cardboard (31), a compression spring (33) is provided on the inner side of the cardboard inner groove (36), one end of the compression spring (33) is connected to a clamping side plate (34), and one end of the clamping side plate (34) away from the compression spring (33) is connected to an anti-slip pad layer (35).

2. A Marshall specimen demoulding machine according to claim 1, characterized in that: The supporting side plates (12) are in total two and are symmetrically arranged; the bottom of the supporting side plates (12) are symmetrically connected with reinforcing ribs (13); and the two ends of the supporting side blocks (14) are symmetrically connected with reinforcing ribs (13).

3. The Marshall specimen demoulding machine according to claim 1, characterized in that: The cylinder (17) is electrically connected to the operation panel, and the center of the cylinder (17) is located above the center point of the base platform (11).

4. The Marshall specimen demoulding machine according to claim 1, characterized in that: The adjusting components (2) have two groups and are symmetrically arranged. The end of the screw rod (21) away from the hand wheel (22) penetrates the supporting side plate (12) and the supporting edge block (14) and extends to be rotatably connected to the demoulding clamping plate (31). The screw rod (21) is also rotatably connected to the supporting side plate (12) and the supporting edge block (14) by threads.

5. The Marshall specimen demoulding machine according to claim 1, characterized in that: The limiting rods (23) are used together in groups of two. The two limiting rods (23) in the same group are symmetrically arranged at the upper and lower ends of the screw rod (21). The ends of the limiting rods (23) away from the limiting blocks (24) successively penetrate the supporting side plates (12) and the supporting edge blocks (14) and are connected to the demoulding clamping plate (31). The limiting rods (23) are also slidably connected to the supporting side plates (12) and the supporting edge blocks (14).

6. The Marshall specimen demoulding machine according to claim 1, characterized in that: The clamping side plate (34) is slidably connected to the cardboard inner groove (36) via the cardboard slide groove (32), the cardboard slide groove (32) is communicated with the cardboard inner groove (36), and the demoulding assembly (3) has two groups and is symmetrically arranged.

7. The Marshall specimen demoulding machine according to claim 1, characterized in that: One end of the compression spring (33) away from the clamping side plate (34) is connected to the inner wall of the clamping plate inner groove (36), and a plurality of clamping side plates (34) are arranged on the inner side of the demoulding clamping plate (31).

8. The Marshall specimen demoulding machine according to claim 1, characterized in that: The anti-skid pad layer (35) is a rubber layer with an arc-shaped cross-section when viewed from above, and two anti-skid pad layers (35) located at the same height are used together.

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