Engine cylinder block mold device convenient to demold

Abstract

The utility model discloses an engine cylinder mold device convenient to demold, which relates to the technical field of engine part manufacturing and comprises a support, a lower mold, an upper mold, a base and a hydraulic rod, the support is fixedly connected to the rear end of the top of the base, and the hydraulic rod is fixedly connected to the support. The upper mold is fixedly connected to the telescopic end of the hydraulic rod, the lower mold is fixedly connected to the top of the base and corresponds to the upper mold, an ejection mechanism is fixedly installed at the bottom of the base, a walking mechanism is assembled at the top of the base, and a spraying deflection mechanism is assembled at the moving end of the walking mechanism. According to the utility model, the spraying deflection mechanism and the walking mechanism are arranged, so that the hollow box integrated with spraying and blowing functions can flexibly move in horizontal and rotating dimensions, and a spray head and an air outlet cover can be accurately aligned with complex areas such as a deep cavity and an inclined wall which are difficult to touch in an engine cylinder block mold; and dead-corner-free uniform spraying and purging are realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of engine parts manufacturing, in particular to an engine cylinder body mould device convenient for demoulding. BACKGROUND

[0002] The engine cylinder body is the framework and core component of the engine, and its structure is extremely complex, usually comprising a cylinder bore, a water jacket cavity, an oil passage, a crankcase and multiple parts, and the wall thickness is uneven, with a large number of reinforcing ribs and mounting bosses, and such a complex geometry makes it one of the most difficult automobile parts to cast, at present, the engine cylinder body is generally produced by high-pressure casting or gravity casting process, and the demoulding process of the mould is a key link affecting the production efficiency and the casting quality, and in order to facilitate demoulding, a release agent needs to be sprayed inside the mould, but the existing spraying mode is manual spraying, which not only harms human health, but also is difficult to ensure the spraying uniformity, so that the release agent after spraying accumulates, therefore, the utility model provides an engine cylinder body mould device convenient for demoulding. SUMMARY

[0003] The utility model discloses a kind of engine cylinder body mould devices convenient for demoulding, to solve the problems presented in the above background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of engine cylinder body mould device convenient for demoulding, including support, lower mould, upper mould, base and hydraulic rod, the support is fixedly connected in the rear end of base top, the hydraulic rod is fixedly connected in support, the upper mould is fixedly connected in the telescopic end of hydraulic rod, and lower mould is fixedly connected in the top of base and with upper mould corresponding, the bottom of base is fixedly installed with ejection mechanism, the top of base is equipped with walking mechanism, and the moving end of walking mechanism is equipped with spraying deflection mechanism, the output end of spraying deflection mechanism is rotatably equipped with hollow box, and hollow box bottom is uniformly fixedly installed with spraying mechanism and blowing mechanism, and spraying mechanism is set in the inner side of corresponding blowing mechanism;

[0005] The blowing mechanism includes air pipe, bellows, mounting pad and air outlet cover, the mounting pad is fixedly installed in the bottom of hollow box, the bottom of mounting pad is fixedly connected with bellows, and the bottom of bellows is threadedly connected with air outlet cover.

[0006] Preferably, the walking mechanism comprises a second motor, a support plate, sliding seats, a lead screw and support blocks, the support plate is fixedly installed on the back of the base, and the second motor is fixedly installed on the back of the support plate, the output end of the second motor is fixedly installed with the lead screw penetrating through the support plate, the number of the sliding seats is two, the base is symmetrically provided with sliding grooves on the upper surface, the two sliding seats are movably installed in the sliding grooves respectively, the right sliding seat is screwed on the lead screw, and the support blocks are fixedly installed on the sliding seats.

[0007] Preferably, the spraying deflection mechanism comprises a first motor and a hollow rod, the first motor is fixedly installed on the side wall of the left sliding seat, the hollow rods are penetratingly installed on the two support blocks, and the inner ends of the two hollow rods are fixedly installed on the two sides of the hollow box.

[0008] Preferably, the outer wall of the right hollow rod is sleeved with a heating pipe, one end of the air outlet pipe is communicated with the bellows, and the other end of the air outlet pipe is communicated with the right hollow rod.

[0009] Preferably, the spraying mechanism comprises a release agent conduit, a spray head and a spray head mounting piece, one end of the release agent conduit is communicated with the left hollow rod, the other end of the release agent conduit is fixedly installed with the spray head mounting piece, the lower end of the spray head mounting piece is fixedly installed with the spray head, and the spray head is located on the inner side of the air outlet cover.

[0010] Preferably, the inner wall of the air outlet cover is fixedly installed with a sealing ring, the surface of the sealing ring is provided with a sealing groove, and the sealing ring is provided with a sealing ring in the sealing groove, the outer wall of the spray head mounting piece is fixedly installed with a limiting ring, and the limiting ring is attached to the surface of the sealing ring.

[0011] Preferably, the air outlet cover is in the shape of a Venturi tube, the spray head is in the shape of a convex curved cylindrical body, and the maximum diameter of the spray head corresponds to the minimum diameter of the air outlet cover.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] The utility model discloses a spraying deflection mechanism and a walking mechanism are arranged, so that the hollow box integrated with spraying and blowing functions can move flexibly in horizontal and rotary dimensions, which makes the spray head and the air outlet cover can be accurately aligned with the complex areas such as deep cavities and inclined walls in the engine cylinder mold, realizes uniform spraying without dead angle and makes the release agent uniformly distributed, and finally realizes the purpose of easy demolding.

[0014] The gas outlet cover is designed as a Venturi tube shape, and the maximum diameter of the spray head is arranged at the minimum diameter throat of the gas outlet cover, the Venturi effect is utilized, when the gas flow passes through the throat, the speed is maximum and the static pressure is minimum, a strong negative pressure area can be formed around the spray head, so that the gas flow can blow away the excess release agent droplets in the mold, prevent the accumulation of the release agent droplets at the groove, and effectively avoid the casting surface defects caused by the uneven release agent;

[0015] The release agent pipe is integrated in the left hollow rod, and the purge gas passage is conveyed to the bellows through the hollow rod on the right side, so that the gas and liquid passages are separated and integrated, and the structure is compact.

[0016] The heating pipe can heat the gas flowing through, so that the release agent molding quality can be improved, the drying time can be greatly shortened, and local overcooling of the mold can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view in a first visual angle state of the utility model;

[0018] Figure 2 It is a three-dimensional structure schematic view in a second visual angle state of the utility model;

[0019] Figure 3 It is a release agent pipe structure schematic view of the utility model;

[0020] Figure 4 It is a limiting ring structure schematic view of the utility model;

[0021] Figure 5 It is a spray head structure schematic view of the utility model.

[0022] In the drawing: support 1, chute 2, spraying deflection mechanism 3, first motor 31, hollow rod 32, hollow box 33, heating pipe 34, spraying mechanism 4, release agent pipe 41, limiting ring 42, spray head 43, spray head mounting piece 44, blowing mechanism 5, air outlet pipe 51, bellows 52, sealing ring 53, mounting pad 54, sealing ring 55, air outlet cover 56, walking mechanism 6, second motor 61, support plate 62, sliding seat 63, lead screw 64, support block 65, ejection mechanism 7, lower mold 8, upper mold 9, base 10, hydraulic rod 11. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figures 1-5 The utility model provides a kind of engine cylinder mold device that facilitates stripping, including support 1, lower mould 8, upper mould 9, base 10 and hydraulic rod 11, support 1 is fixedly connected at the rear end of the top of base 10, hydraulic rod 11 is fixedly connected on support 1, upper mould 9 is fixedly connected on the telescopic end of hydraulic rod 11, and lower mould 8 is fixedly connected on the top of base 10 and corresponds with upper mould 9, control hydraulic rod 11 elongation, make upper mould 9 and lower mould 8 closely adhere to, and by external pouring tube, metal liquid is injected into lower mould 8, the bottom of base 10 is fixedly installed with ejection mechanism 7, ejection mechanism 7 uses hydraulic control, when casting is formed, the telescopic end of control ejection mechanism 7 is elongated and engine cylinder is ejected from lower mould 8, pouring system is provided below ejection mechanism 7, and the pouring pipe in pouring system penetrates ejection mechanism 7 and is communicated with the cavity of lower mould 8, for pouring work.

[0025] The top of base 10 is equipped with walking mechanism 6, and the moving end of walking mechanism 6 is equipped with spraying deflection mechanism 3, the output end of spraying deflection mechanism 3 is rotatably equipped with hollow box 33, and hollow box 33 is uniformly fixedly installed with spraying mechanism 4 and blowing mechanism 5 at the bottom, and spraying mechanism 4 is arranged on the inner side of corresponding blowing mechanism 5, and blowing mechanism 5 is arranged on the outer side of spraying mechanism 4, which can protect spraying mechanism 4 and make the structure more compact, small and flexible, and facilitate positioning and movement in complex mold cavity.

[0026] Blowing mechanism 5 includes air outlet pipe 51, bellows 52, mounting pad 54 and air outlet cover 56, mounting pad 54 is fixedly installed on the bottom of hollow box 33, the bottom of mounting pad 54 is fixedly connected with bellows 52, and the bottom of bellows 52 is threadedly connected with air outlet cover 56, and blowing mechanism 5 can complete air injection after spraying to make the release agent evenly distributed.

[0027] Walking mechanism 6 includes second motor 61, support plate 62, sliding seat 63, lead screw 64 and support block 65, support plate 62 is fixedly installed on the back of base 10, and second motor 61 is fixedly installed on the back of support plate 62, second motor 61 rotates to drive lead screw 64 to rotate, and sliding seat 63 moves forward and backward under the cooperation of sliding groove 2, the output end of second motor 61 is fixedly installed with lead screw 64 penetrating support plate 62, the number of sliding seat 63 is two, and sliding groove 2 is symmetrically formed on the upper surface of base 10, two sliding seats 63 are movably arranged in sliding groove 2, right sliding seat 63 is screwed on lead screw 64, support block 65 is fixedly installed on sliding seat 63, and two support blocks 65 are connected through spraying deflection mechanism 3.

[0028] The spraying deflection mechanism 3 comprises a first motor 31 and hollow rods 32, the first motor 31 is fixedly installed on the side wall of the left slide base 63, the two supporting blocks 65 are each provided with a hollow rod 32, the inner ends of the two hollow rods 32 are fixedly installed on the two sides of the hollow box 33, the output end of the first motor 31 is connected with the hollow rods 32 through a belt transmission, the output end of the first motor 31 and the surface of the hollow rod 32 on the same side are fixedly connected with pulleys, the two pulleys are connected through a single-sided tooth synchronous belt transmission, the first motor 31 drives the pulleys to rotate when rotating, and the hollow rods 32 can be driven to rotate under the cooperation of the single-sided tooth synchronous belt, so that the hollow box 33 can be freely turned over, and the outlet direction of the spraying mechanism 4 and the blowing mechanism 5 can be adjusted.

[0029] The right hollow rod 32 is sleeved with a heating pipe 34, the heating pipe 34 is in a spiral structure, can heat the gas flowing through, so that the mold quality of the release agent can be improved, the drying time can be greatly shortened, the local overcooling of the mold can be avoided, one end of the air outlet pipe 51 is communicated with the bellows 52, and the other end of the air outlet pipe 51 is communicated with the right hollow rod 32.

[0030] The heating pipe 34 can also be heated by an electric heating wire or an electric heating rod, a pipeline is arranged outside the right hollow rod 32, and the electric heating wire or the electric heating rod is arranged in the pipeline.

[0031] The spraying mechanism 4 comprises a release agent pipe 41, a spray head 43 and a spray head mounting piece 44, one end of the release agent pipe 41 is communicated with the left hollow rod 32, the other end of the release agent pipe 41 is fixedly provided with the spray head mounting piece 44, the lower end of the spray head mounting piece 44 is fixedly provided with the spray head 43, the spray head 43 is located inside the air outlet cover 56, the surfaces of the release agent pipe 41 and the air outlet pipe 51 are provided with electromagnetic valves, the tail end of the release agent pipe 41 is communicated with the output end of an external pump, the external pump can convey the release agent to the spray head mounting piece 44 through the release agent pipe 41, and the release agent is sprayed out from the spray head 43, the tail end of the air outlet pipe 51 is communicated with the output end of an external air pump, the external air pump can convey the gas to the bellows 52 through the air outlet pipe 51, at this time, the air pressure in the bellows 52 is increased, the gas exerts pressure on the sealing ring 55, the bellows 52 is elongated, the sealing ring 53 is separated from the surface of the limiting ring 42, and the gas is blown out from 56.

[0032] The bellows 52 has the characteristics of flexibility, is in a contracted state at the beginning, the limiting ring 42 and the sealing ring 53 are attached to realize sealing, and is elongated under the action of the air pressure after gas transmission, so that the limiting ring 42 and the sealing ring 53 are separated to form an air flow gap, the gas can be discharged, in addition, the elongation of the bellows 52 can be finely adjusted by adjusting the air pressure, so that the size of the air flow gap is indirectly controlled, the blowing air flow intensity is adjusted, and the flexible movement avoids the jamming or impact that may be caused by a rigid mechanism.

[0033] The inner wall of the air outlet cover 56 is fixedly provided with a sealing ring 55, a sealing groove is formed in the surface of the sealing ring 55, and a sealing ring 53 is arranged in the sealing groove. The outer wall of the nozzle mounting piece 44 is fixedly provided with a limiting ring 42, and the limiting ring 42 is attached to the surface of the sealing ring 53, so that a dynamic sealing effect is formed. During the spraying stage, the completely sealed air path ensures that the blowing air flow does not interfere with the atomization process and the spraying trajectory of the release agent, and ensures the uniformity of the initial distribution of the release agent. If the air path is always open, even a small amount of leaked air flow will disturb the atomization field.

[0034] The air outlet cover 56 is in the shape of a Venturi tube, and the nozzle 43 is in the shape of a convex curved cylindrical body. The nozzle 43 cooperates with the air outlet cover 56 to form an annular flow channel with a cross-section that first contracts and then expands, which can ensure that the air flow is diffused and blown out and can be blown to the middle position. The maximum diameter of the nozzle 43 corresponds to the minimum diameter of the air outlet cover 56. The Venturi effect is utilized. When the air flow passes through the throat, the speed is maximum and the static pressure is minimum, so that a strong negative pressure area is formed around the nozzle 43. Therefore, the air flow can blow away the excess release agent droplets in the mold, preventing them from accumulating in the recess, thereby effectively avoiding casting surface defects caused by uneven release agent.

[0035] The number of air outlet covers 56 and nozzles 43 is multiple, which can ensure uniform spraying of release agent and uniform blowing of air flow in the mold without moving left and right.

[0036] The operation steps of the present application are as follows:

[0037] A. Initially, the upper mold 9 is above the lower mold 8. The walking mechanism 6 drives the hollow box 33 to move forward, and the hollow box 33 passes between the lower mold 8 and the upper mold 9. During the movement process, the lower mold 8 cavity is sprayed with release agent. During this process, the first motor 31 controls the deflection of the hollow box 33 to achieve uniform spraying of each position in the lower mold 8 cavity. After the release agent spraying work is completed, the walking mechanism 6 controls the hollow box 33 to move backward. At this time, the spraying of the release agent is stopped, the heating pipe 34 is operated to heat the gas, and the air blowing work is carried out. The hot air flow allows the release agent to be uniformly distributed. During this process, the direction of the air flow is adjusted synchronously by the first motor 31.

[0038] B. The deflection of the hollow box 33 allows the spraying mechanism 4 and the blowing mechanism 5 to face upward. The upper mold 9 cavity is sprayed with release agent again by moving forward, and then the air is blown by moving backward. The uniform spraying of the release agent is completed by two rounds.

[0039] C. The upper mold 9 is lowered by the hydraulic rod 11, and the lower mold 8 and the upper mold 9 are combined and metal liquid is injected.

[0040] D. After the casting is formed, the upper mold 9 is demolded by the hydraulic rod 11, and the ejection mechanism 7 completes the demolding of the casting on the lower mold 8.

[0041] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the present application, which should be limited only by the appended claims and their equivalents.

Claims

1. An engine cylinder block mold device that facilitates demolding, comprising a support (1), a lower mold (8), an upper mold (9), a base (10), and a hydraulic lever (11), characterized by: The bracket (1) is fixedly connected to the rear end of the top of the base (10), the hydraulic rod (11) is fixedly connected to the bracket (1), the upper mold (9) is fixedly connected to the telescopic end of the hydraulic rod (11), and the lower mold (8) is fixedly connected to the top of the base (10) and corresponds to the upper mold (9), the top of the base (10) is fixedly installed with the ejection mechanism (7), the top of the base (10) is equipped with the walking mechanism (6), and the moving end of the walking mechanism (6) is equipped with the spraying deflection mechanism (3), the output end of the spraying deflection mechanism (3) is rotatably equipped with the hollow box (33), and the bottom of the hollow box (33) is uniformly fixedly installed with the spraying mechanism (4) and the blowing mechanism (5), and the spraying mechanism (4) is arranged on the inner side of the corresponding blowing mechanism (5). The blowing mechanism (5) comprises an air outlet pipe (51), a corrugated pipe (52), a mounting pad (54) and an air outlet cover (56), the mounting pad (54) is fixedly installed on the bottom of the hollow box (33), the bottom of the mounting pad (54) is fixedly connected with the corrugated pipe (52), and the bottom of the corrugated pipe (52) is threadedly connected with the air outlet cover (56).

2. An engine block mold apparatus for facilitating mold release according to claim 1, wherein: The walking mechanism (6) comprises a second motor (61), a support plate (62), a sliding seat (63), a lead screw (64) and a support block (65), the support plate (62) is fixedly installed on the back of the base (10), and the second motor (61) is fixedly installed on the back of the support plate (62), the output end of the second motor (61) is fixedly installed with the lead screw (64) penetrating through the support plate (62), the number of the sliding seats (63) is two, the base (10) is symmetrically provided with a sliding groove (2) on the upper surface, and the two sliding seats (63) are movably arranged in the sliding groove (2), the right sliding seat (63) is screwed on the lead screw (64), and the sliding seats (63) are fixedly installed with the support blocks (65), and the two support blocks (65) are connected through the spraying deflection mechanism (3).

3. An engine cylinder block mold apparatus for facilitating mold release according to claim 2, wherein: The spraying deflection mechanism (3) comprises a first motor (31) and a hollow rod (32), the first motor (31) is fixedly installed on the side wall of the left sliding seat (63), the hollow rods (32) are penetratingly installed on the two support blocks (65), the inner ends of the two hollow rods (32) are fixedly installed on the two sides of the hollow box (33), and the output end of the first motor (31) is connected with the hollow rod (32) through belt transmission.

4. An engine cylinder block mold apparatus for facilitating mold release according to claim 3, wherein: The right hollow rod (32) is sleeved with a heating pipe (34), one end of the air outlet pipe (51) is communicated with the corrugated pipe (52), and the other end of the air outlet pipe (51) is communicated with the right hollow rod (32).

5. An engine block mold apparatus for facilitating mold release according to claim 3, wherein: The spraying mechanism (4) comprises a release agent conduit (41), a spray head (43) and a spray head mounting piece (44), one end of the release agent conduit (41) is communicated with the left hollow rod (32), the other end of the release agent conduit (41) is fixedly installed with the spray head mounting piece (44), the lower end of the spray head mounting piece (44) is fixedly installed with the spray head (43), and the spray head (43) is located on the inner side of the air outlet cover (56).

6. An engine cylinder block mold apparatus for facilitating mold release according to claim 5, wherein: The inner wall of the air outlet cover (56) is fixedly provided with a sealing ring (55), the surface of the sealing ring (55) is provided with a sealing groove, and the sealing groove is provided with a sealing ring (53).

7. An engine block mold apparatus for facilitating mold release according to claim 5, wherein: The air outlet cover (56) is in the shape of a Venturi tube, and the spray head (43) is in the shape of a convex curved cylindrical body, and the maximum diameter of the spray head (43) corresponds to the minimum diameter of the air outlet cover (56).

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