CN209578070U - A kind of casting die for bend pipe casting - Google Patents

Abstract

The utility model discloses a kind of casting dies for bend pipe casting, it includes right half module, left half module and bottom plate, positioning pin is equipped on bottom plate, right half module and left half module are mounted on bottom plate by positioning pin, right half module and left half module are close together, pressing plate one and pressing plate two are respectively equipped in the side of right half module and left half module and are flexibly connected by fastener, right half module top is respectively equipped with big half cone one and small half cone one, there is the L-type bend loss one of connection in the lower section of big half cone one, S type running channel one is connected in the lower section of small half cone one, it is connected between S type running channel one and L-type bend loss one by half Taper Pipe one.By take from nozzle into pour, nozzle feeding mode, part turning site is placed in lower part, it is easy to guarantee the turning site internal soundness, structure is respectively using the nozzle at both ends as into cast gate and riser, intermediate tube internal cause is inconvenient to take the structures such as sliding block, it is formed using sand core, the sand core later period clears up in part after molding, achieves good using effect.

Description

A kind of casting die for bend pipe casting

Technical field

The utility model relates to a kind of mold more particularly to a kind of casting dies for bend pipe casting, belong to and pour mold Has equipment technical field.

Background technique

Now need to process a kind of connecting tube aluminum alloy part as shown in Figure 3, it is desirable that use cast molding, and nozzle Position requires machining, and pore-free sand holes exist after processing, it is desirable that has good air-tightness, because the part belongs to bend pipe sky Cavity configuration, originally proposed adoption sand casting, not having to part depanning bring after considering casting influences, but because the molding of early period And sand core placement and the cleaning of later period part etc. have difficulties, and sand casting molding rear surface is of poor quality, end is easy production The defects of raw airhole, casting quality cannot get the satisfaction of client, this is problem to be solved.

Summary of the invention

Technical problem to be solved by the utility model is: a kind of casting die for bend pipe casting is provided, by taking From nozzle into pour, the mode of nozzle feeding, part turning site is placed in lower part, is easy to guarantee the turning site internal soundness, Structure is respectively using the nozzle at both ends as into cast gate and riser, and intermediate tube internal cause is inconvenient to take the structures such as sliding block, using sand Core molding, the sand core later period clears up in part after molding, efficiently solves the problems, such as above-mentioned.

The technical solution of the utility model are as follows: a kind of casting die for bend pipe casting, it includes right half module, Zuo Banmo And bottom plate, the bottom plate are square plate structure, positioning pin are equipped on bottom plate, the right half module and left half module pass through positioning pin It is mounted on bottom plate, right half module and left half module are close together, and are respectively equipped with one He of pressing plate in the side of right half module and left half module Pressing plate two is simultaneously flexibly connected by fastener, and the right half module top is respectively equipped with big half cone one and small half cone one, big half cone one Lower section have the L-type bend loss one of connection, S type running channel one is connected in the lower section of small half cone one, in S type running channel one and L-type bend pipe It is connected between section one by half Taper Pipe one.

The left half module is arranged symmetrically with right half module, and the top Zuo Banmo is respectively equipped with big half cone two and small half cone two, most There is the L-type bend loss two of connection in the lower section of cone two, S type running channel two is connected in the lower section of small half cone two, in S type running channel two and L-type It is connected between bend loss two by half Taper Pipe two.

The two sides of the right half module are set there are two guide pillar hole one.

The left half module two sides are respectively equipped with guide pillar hole two corresponding with guide pillar hole one, in guide pillar hole one and guide pillar hole There is guide post in two centre.

The beneficial effects of the utility model are: compared with prior art, using the technical solution of the utility model, the design Scenario-frame is simple, more convenient for the cleaning in later period etc., can because of riser and into position is poured except required part noumenon Directly saw removes, and does not influence accessory appearance after removing；In addition there are multiple product models for the connecting tube, are straight sections bit length Difference is spent, therefore shared blank can be taken in actual production, reduces Mold Making expense；Most importantly this kind is into pouring mode Meet the consecutive solidification principle of cast, provide extraordinary Feeding channel in production process for riser, total is in streamline Type, flow direction sharply does not change, the flowing of molten metal in try one's best restriction and control cavity filling process；In addition " S " The sprue of type slows down molten aluminum flowing velocity when casting, guarantees molten metal smooth flow during cavity filling process, total Design makes the inside parts dense structure of production, utmostly guarantees casting quality.

It verifies through actual production, is produced using the structural design scheme, greatly enhance production efficiency, zero Part good forming effect, dense internal organization；Multiple Type component sharing blank, reduces in Mold Making expense and production process Exchange the time of mold.And verifying after processed, feeding is good, machined surface exists without sand holes, and part air-tightness meets use and wants It asks.Larger economic benefit is brought in the project for company.

Using the design scheme, high-effect high-quality production is realized, good using effect is achieved.

Detailed description of the invention

Fig. 1 is the quiet mode structure schematic diagram of the utility model；

Fig. 2 is the utility model dynamic model structural schematic diagram；

Fig. 3 pours design of part schematic diagram by the utility model.

Specific embodiment

To keep the purpose of this utility model, technical solution and advantage clearer, below with reference to this specification attached drawing pair The utility model is described in further detail.

Embodiment 1: as shown in attached drawing 1~3, a kind of casting die for bend pipe casting, it includes right half module 3, left half Mould 18 and bottom plate 9, the bottom plate 9 are square plate structure, and positioning pin 8, the right half module 3 and Zuo Banmo are equipped on bottom plate 9 18 are mounted on bottom plate 9 by positioning pin 8, and right half module 3 and left half module 18 are close together, in right half module 3 and left half module 18 Side is respectively equipped with pressing plate 1 and pressing plate 2 23 and is flexibly connected by fastener, and right 3 top of half module is respectively equipped with most One 2 and small half cone 1 are bored, there is the L-type bend loss 1 of connection in the lower section of big half cone 1, is connected to S in the lower section of small half cone 1 Type running channel 1 is connected between S type running channel 1 and L-type bend loss 1 by half Taper Pipe 1.

Further, Zuo Banmo 18 is arranged symmetrically with right half module 3, and 18 top Zuo Banmo is respectively equipped with big half cone 2 16 and small There is the L-type bend loss 2 20 of connection in the lower section of half cone 2 14, big half cone 2 16, is connected to S type running channel in the lower section of small half cone 2 14 2 22, it is connected between S type running channel 2 22 and L-type bend loss 2 20 by half Taper Pipe 2 24.

Further, the two sides of right half module 3 are set there are two guide pillar hole 1.

Further, 18 two sides Zuo Banmo are respectively equipped with guide pillar hole 2 13 corresponding with guide pillar hole 1, in guide pillar hole 1 and the centre of guide pillar hole 2 13 have guide post.

Further, positioning arc cam 1 is respectively equipped in the upper and lower of L-type bend loss 1 and position arc-shaped Boss 2 10 is respectively intended to position sand core, it is ensured that the position of sand core ensure that the dimensional accuracy of casting.

Further, positioning arc cam 3 17 and positioning circular arc are respectively equipped in the upper and lower of L-type bend loss 2 20 Shape boss 4 21 is used cooperatively with positioning arc cam 1 and positioning arc cam 2 10, is divided and is separately used to carry out sand core Positioning, it is ensured that the position of sand core ensure that the dimensional accuracy of casting.

Further, there is sand core dowel hole in positioning arc cam 3 17 and the centre for positioning arc cam 4 21 15, there is the sand core positioning pin for being positioned to sand core in sand core dowel hole 15.

Further, L-type sand core, L-type are placed in the cavity between L-type bend loss 1 and L-type bend loss 2 20 There is uniform gap between sand core and L-type bend loss 1 and L-type bend loss 2 20, forms the bend pipe casting to be cast.

Further, jogger hole 19, jogger hole 19 are additionally provided on the bending position of L-type bend loss 2 20 on left half module 18 It is inside placed with mandril, for facilitating demoulding, is greatly improved work efficiency.

For mass production, save the cost, and raising productivity effect, metal mold casting mode is selected, relative to sand mold Casting, it is more preferable using the surface quality of workpieces of permanent mold casting；Easily controllable external temperature in production process；It can be fast rapid-result Type.Decision take from nozzle into pour, the mode of nozzle feeding, part turning site is placed in lower part, is easy to guarantee the turning part Position internal soundness, structure are respectively using the nozzle at both ends as into cast gate and riser, and intermediate tube internal cause is inconvenient to take sliding block etc. Structure is formed using sand core, and the sand core later period clears up in part after molding.

Because part is bend pipe class formation, therefore can only be spliced from intermediate parting, two-half die；In addition, for for taking Cast structure, core pulling cannot be set, thus in pipe can only using sand core form, be respectively set at head and the tail both ends close to nozzle position It is passed through when a piece cylinder is to place sand core, to have the function that place sand core, while also functioning to and entire sand core is vertically positioned Effect also reserve corresponding placement positioning hole, specific pattern such as three institute of figure in corresponding position similarly when making sand core Show；In order to not be close to certain one side of type chamber after allowing sand core to place in type chamber, reaches thorough positioning, be arranged two cylinder roots Profile-followed rotary table, making sand core, position fixation is unbiased after placement, guarantees part two sides uniform wall thickness；

By taking part opening position traverse left and right to be opened, parting being arranged for boundary among the round boss of part Face, dynamic model mold protrude above position and are arranged to bascule, not only plastic inner cavity of component, but also have ejection effect, without separately setting top Bar causes to guarantee that inner cavity forming surface is smooth there are mandril print on part；Riser is set in boss position upper end, the other end is into pouring Mouthful, post-production is taken in hole, and just it is conducive to the position and is poured the feeding of distal end, is in addition the design for runner section, Sprue is designed to "u"-shaped and is syphon shape by tip designs, can effectively improve the height of molten metal in casting process Speed washes away caused turbulent flow, guarantees molten metal smooth flow during cavity filling process.In addition it is improved during production practices The thickness of cross gate suitably is increased, can guarantee quickly to fill type, full of type chamber is had suffered before running channel solidification, is guaranteed relatively flat The setting temperature of weighing apparatus, there is hickie in piece surface after avoiding molding, moreover it is possible to efficiently use running channel and carry out feeding, largely Improve interior tissue.

Place is not described in detail for the utility model, is the well-known technique of those skilled in the art of the present technique.Finally, it is stated that with Upper embodiment is merely intended for describing the technical solutions of the present application, but not for limiting the present application, although referring to preferred embodiment to the utility model It is described in detail, those skilled in the art should understand that, the technical solution of the utility model can be repaired Change or equivalent replacement should all cover without departing from the objective and range of technical solutions of the utility model in the utility model Scope of the claims in.

Claims (4)

1. a kind of casting die for bend pipe casting, it includes right half module (3), Zuo Banmo (18) and bottom plate (9), and feature exists In: the bottom plate (9) is square plate structure, and positioning pin (8), the right half module (3) and Zuo Banmo are equipped on bottom plate (9) (18) it is mounted on bottom plate (9) by positioning pin (8), right half module (3) and Zuo Banmo (18) are close together, in right half module (3) Pressing plate one (6) and pressing plate two (23) are respectively equipped with the side of Zuo Banmo (18) and are flexibly connected by fastener, described right half Mould (3) top is respectively equipped with big half cone one (2) and small half cone one (4), there is the L-type bend loss of connection below big half cone one (2) One (11) are connected to S type running channel one (7) in the lower section of small half cone one (4), S type running channel one (7) and L-type bend loss one (11) it Between by half Taper Pipe one (12) be connected to.

2. the casting die according to claim 1 for bend pipe casting, it is characterised in that: the left half module (18) and the right side Half module (3) is arranged symmetrically, and Zuo Banmo (18) top is respectively equipped with big half cone two (16) and small half cone two (14), big half cone two (16) Lower section have the L-type bend loss two (20) of connection, S type running channel two (22) are connected in the lower section of small half cone two (14), in S type running channel It is connected between two (22) and L-type bend loss two (20) by half Taper Pipe two (24).

3. the casting die according to claim 1 for bend pipe casting, it is characterised in that: the two of the right half module (3) Side is set there are two guide pillar hole one (5).

4. the casting die according to claim 1 or 2 for bend pipe casting, it is characterised in that: the left half module (18) Two sides are respectively equipped with guide pillar hole two (13) corresponding with guide pillar hole one (5), in guide pillar hole one (5) and guide pillar hole two (13) There is guide post in centre.