Double-sided die plate for piston ring

Abstract

The utility model discloses a double-sided mold plate for a piston ring, which is applied to the technical field of piston ring processing, and comprises a mold plate, wherein a shaping ring is installed on the top and bottom of the mold plate, slots are provided on both sides of the bottom of the shaping ring, and a plug rod slidably plugged into the slot is welded to the top and bottom of the mold plate, a clamping block is welded to one end of the top of the plug rod, and a trapezoidal clamping slot clamped into the clamping block is provided inside the slot; by installing shaping rings on both sides of the mold plate, the molding sand at the top and bottom can be shaped simultaneously. The shaping efficiency is improved, and it is convenient for the subsequent casting and shaping of the piston ring. By connecting one end of the mold plate to the output end of the air compressor, the compressed air can be blown out from the inner ring of the shaping ring through the sand blowing hole. Thus, the molding sand that cannot be blown by the air gun inside the shaping ring can be blown out, the molding sand adhesion is avoided, the sand blowing efficiency is improved, and the subsequent shaping effect of the molding sand is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of piston ring processing, in particular to a double-sided mold plate of a piston ring. Background Art

[0002] The piston ring is a metal ring used to be embedded in the groove of the piston. Generally, the corresponding mold is used to cast the metal liquid into a hollow cylindrical structure, and then it is cut into different thicknesses according to production requirements.

[0003] At present, the Chinese utility model with the publication number of CN218785714U discloses a piston ring production mold, including a mold bottom support seat and a mold upper mold seat, the mold upper mold seat is arranged at the upper end of the mold bottom support seat, the left and right ends of the mold bottom support seat are vertically provided with a height adjustment mechanism, the inner end of the height adjustment mechanism is horizontally connected with a horizontal displacement mechanism, one end of the horizontal displacement mechanism is connected with an anti-collision damage mechanism, and one end of the anti-collision damage mechanism is connected with a clamping mechanism. The utility model can drive the connecting plate and the semicircular clamping ring to move inward through the screw ring, and then clamp the piston ring. When contacting the piston ring, the anti-collision spring on the outer side of the semicircular clamping ring plays a buffering effect, which can prevent the material from being damaged by excessive impact force. When processing piston rings of different diameters, the mold can unscrew the screw rod to replace the semicircular clamping rings of different diameters, and can also unscrew the adjusting threaded rod to adjust the height of the height adjustment square rod. The adjustment effect of the mold is better.

[0004] The processing of piston rings is to shape the molding sand through the mold plate, and then pour the metal liquid into the molding sand mold for molding. However, the existing mold plate only has a circular ring structure on one side that can shape the molding sand, so the efficiency is low. And the circular ring structure cannot be removed from the mold plate, so when a circular ring on the mold plate is damaged, it can only be cut off from the mold plate and re-welded with a new circular ring, which is more troublesome. At the same time, after the existing mold plate shapes the molding sand, part of the molding sand will adhere to the mold plate. Although the molding sand on the mold plate surface is easier to be blown away by the air gun, it is difficult to blow out the attached molding sand because the airflow is blocked inside the circular ring structure, which is easy to cause omissions and will have a certain impact on the subsequent molding sand shaping. Utility Model Content

[0005] The utility model aims to provide a double-sided mold plate for a piston ring, which has the advantages of improving the efficiency of molding sand shaping, facilitating the disassembly and replacement of damaged rings, and facilitating the blowing out of the molding sand attached to the inside of the rings.

[0006] The above technical purpose of the utility model is achieved through the following technical scheme: a double-sided mold plate for a piston ring, comprising a mold plate, wherein shaping rings are installed on the top and bottom of the mold plate, slots are provided on both sides of the bottom of the shaping rings, and plug rods slidably plugged into the slots are welded to the top and bottom of the mold plate, a clamping block is welded to one end of the top of the plug rod, and a trapezoidal clamping groove clamped to the clamping block is provided inside the slot.

[0007] By adopting the above technical solution, shaping rings are installed on both sides of the mold plate, so that the molding sand on the top and bottom can be shaped at the same time. The shaping efficiency is improved, which is convenient for the subsequent casting and shaping of the piston ring. The block will slowly come into contact with the trapezoidal groove during the sliding process, so that the shaping ring is fixed by friction, so that the shaping ring can be quickly removed from the mold plate for replacement when damaged. Reduce the time occupied by replacement and improve practicality. By connecting one end of the mold plate to the output end of the air compressor, compressed air can be blown out from the inner ring of the shaping ring through the sand blowing hole. In this way, the molding sand that the air gun cannot blow inside the shaping ring can be blown out, avoiding the adhesion of molding sand, improving the sand blowing efficiency, and ensuring the effect of subsequent molding sand shaping.

[0008] The utility model is further configured as follows: the mold plate is provided with mutually connected air vents and sand blowing holes respectively, one end of the sand blowing hole away from the air vent is connected to the inner circle of the shaping ring, and one side of the outside of the mold plate is fixedly connected to an air compressor connector connected to the air vent.

[0009] By adopting the above technical solution, the molding sand inside the shaping ring that cannot be blown out by the air gun can be blown out, thereby avoiding the adhesion of molding sand, improving the sand blowing efficiency, and ensuring the effect of subsequent shaping of the molding sand.

[0010] The utility model is further configured as follows: arc angle grooves are provided at four corners of the surface of the mold plate.

[0011] The above technical solution makes it easier to embed the mold plate into the sand mold groove, thereby improving stability.

[0012] The utility model is further configured as follows: a fixing plate is welded on the top of the mold plate.

[0013] By adopting the above technical solution, the fixed plate is clamped by the upper mold base, so that the mold plate can be clamped and placed in the sand mold groove.

[0014] The utility model is further configured as follows: one end of the mold plate located at the sand blasting hole close to the inner ring of the shaping ring is provided with a conical through groove connected with the sand blasting hole.

[0015] The above technical solution can not only increase the air velocity and enhance the sand blowing effect, but also reduce the leakage of molding sand into the interior.

[0016] The utility model is further configured as follows: the surfaces of the mold plate, the shaping ring and the fixing plate are all ground and polished.

[0017] By adopting the above technical solution, the surface friction is reduced, thereby reducing the adhesion rate of molding sand.

[0018] In summary, the utility model has the following beneficial effects:

[0019] 1. By installing shaping rings on both sides of the mold plate, the molding sand on the top and bottom can be shaped at the same time. This improves the shaping efficiency and facilitates the subsequent casting and shaping of the piston ring;

[0020] 2. The block will slowly come into contact with the trapezoidal slot during the sliding process, thereby fixing the shaping ring by friction, so that the shaping ring can be quickly removed from the mold plate for replacement when damaged. This reduces the time taken for replacement and improves practicality;

[0021] 3. By connecting one end of the mold plate to the output end of the air compressor, the compressed air can be blown out from the inner ring of the shaping ring through the sand blowing hole. In this way, the molding sand inside the shaping ring that the air gun cannot blow out can be blown out, avoiding the adhesion of molding sand, improving the sand blowing efficiency, and ensuring the subsequent shaping effect of the molding sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front structural schematic diagram of the utility model;

[0023] Figure 2 It is a schematic diagram of the back structure of the utility model;

[0024] Figure 3 It is a partial structural sectional view of the utility model;

[0025] Figure 4 This utility model Figure 2 Enlarged view of point A in .

[0026] Figure numerals: 1. mold plate; 2. shaping ring; 3. plug rod; 4. slot; 5. clamp block; 6. trapezoidal slot; 7. vent hole; 8. air compressor connector; 9. sand blowing hole; 10. conical through slot; 11. arc angle slot; 12. fixing plate. DETAILED DESCRIPTION

[0027] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0028] Embodiment 1:

[0029] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4A double-sided mold plate for a piston ring comprises a mold plate 1, a shaping ring 2 is installed on the top and bottom of the mold plate 1, slots 4 are provided on both sides of the bottom of the shaping ring 2, a plug rod 3 slidably plugged into the slot 4 is welded to the top and bottom of the mold plate 1, a clamping block 5 is welded to one end of the top of the plug rod 3, and a trapezoidal clamping groove 6 clamped into the clamping block 5 is provided inside the slot 4. By installing the shaping ring 2 on both sides of the mold plate 1, the molding sand at the top and bottom can be shaped at the same time. The shaping efficiency is improved, and it is convenient for the subsequent casting and shaping of the piston ring. The clamping block 5 will slowly come into contact with the trapezoidal clamping groove 6 during the sliding process, so that the shaping ring 2 is fixed by friction, so that the shaping ring 2 can be quickly removed from the mold plate 1 for replacement when damaged. The time occupied by replacement is reduced and the practicality is improved.

[0030] refer to Figure 1 , Figure 2 The four corners of the surface of the mold plate 1 are provided with arc angle grooves 11, which facilitates the mold plate to be embedded in the sand mold groove and improves stability.

[0031] refer to Figure 1 A fixing plate 12 is welded on the top of the mold plate 1, and the fixing plate 12 is clamped by the upper mold base, so that the mold plate 1 can be clamped and placed in the sand mold groove.

[0032] Brief description of the use process: by twisting the shaping ring 2, the block 5 and the insertion rod 3 are driven to slide inside the trapezoidal slot 6. After sliding to the position of the slot 4, the shaping ring 2 can be pulled upward to be removed from the surface of the insertion rod 3, and then the damaged shaping ring 2 can be disassembled and replaced. At the same time, align the slot 4 at the bottom of the new shaping ring 2 with the insertion rod 3, then slide the insertion rod 3 into the slot 4, and rotate the shaping ring 2 in the opposite direction. Since the internal space of the trapezoidal slot 6 will continue to decrease, the block 5 will slowly conflict with the trapezoidal slot 6 during the sliding process, so that the shaping ring 2 can be fixed by friction.

[0033] Embodiment 2:

[0034] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 A double-sided mold plate for a piston ring, wherein the mold plate 1 is provided with mutually connected vent holes 7 and sand blowing holes 9, one end of the sand blowing hole 9 away from the vent hole 7 is connected to the inner ring of the shaping ring 2, and one side of the outside of the mold plate 1 is fixedly connected to an air compressor connector 8 connected to the vent hole 7. By connecting one end of the mold plate 1 to the output end of the air compressor, compressed air can be blown out from the inner ring of the shaping ring 2 through the sand blowing holes 9. In this way, the molding sand inside the shaping ring 2 that cannot be blown by the air gun can be blown out, thus avoiding the adhesion of molding sand, improving the sand blowing efficiency, and ensuring the subsequent shaping effect of the molding sand.

[0035] refer to Figure 3 , Figure 4 The mold plate 1 is provided with a conical through groove 10 connected with the sand blasting hole 9 at one end thereof near the inner circle of the shaping ring 2, which can not only increase the air flow velocity and the sand blasting effect, but also reduce the leakage of molding sand into the interior.

[0036] refer to Figure 1 , Figure 2 The surfaces of the mold plate 1, the shaping ring 2 and the fixing plate 12 are all ground and polished to reduce surface friction, thereby reducing the adhesion rate of the molding sand.

[0037] Brief description of the use process: lift the mold plate 1 through the upper mold base, then move it into the sand mold groove, and inject molding sand into the sand mold groove. At the same time, compress the molding sand so that the shaping rings 2 at the top and bottom of the mold plate 1 can shape the top of the molding sand into a circular groove with a cylinder in the center, so that after the metal liquid is poured into the circular groove, it can be cooled to form a hollow cylinder for piston ring processing. Then, connect the air compressor connector 8 to the output end pipe of the air compressor, so that the compressed air is input into the sand blowing hole 9 through the vent 7, so as to blow out the molding sand inside the shaping ring 2 that the air gun cannot reach.

[0038] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A double-sided die plate for a piston ring, comprising a die plate (1), characterized in that: The top and bottom of the mold plate (1) are both installed with shaping rings (2), and slots (4) are provided on both sides of the bottom of the shaping ring (2). The top and bottom of the mold plate (1) are both welded with plug rods (3) that are slidably plugged into the slots (4), and a clamping block (5) is welded at one end of the top of the plug rod (3), and a trapezoidal clamping groove (6) that is clamped into the clamping block (5) is provided inside the slot (4).

2. The double-sided mold plate for a piston ring according to claim 1, characterized in that: The mold plate (1) is provided with mutually connected ventilation holes (7) and sand blowing holes (9) respectively, one end of the sand blowing hole (9) away from the ventilation hole (7) is connected to the inner circle of the shaping ring (2), and one side of the outside of the mold plate (1) is fixedly connected to an air compressor connector (8) connected to the ventilation hole (7).

3. The double-sided mold plate for a piston ring according to claim 1, characterized in that: Arc angle grooves (11) are provided at four corners of the surface of the mold plate (1).

4. The double-sided mold plate for a piston ring according to claim 1, characterized in that: A fixing plate (12) is welded to the top of the mold plate (1).

5. The double-sided mold plate for a piston ring according to claim 2, characterized in that: The mold plate (1) is provided with a conical through groove (10) at one end of the sand blasting hole (9) close to the inner circle of the shaping ring (2) and connected to the sand blasting hole (9).

6. The double-sided mold plate for a piston ring according to claim 4, characterized in that: The surfaces of the mold plate (1), the shaping ring (2) and the fixing plate (12) are all ground and polished.

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