Engine throttle valve forming die

Abstract

The utility model discloses an engine throttle valve forming die which comprises a front die frame and a rear die frame, a rear die core is fixed on the rear die frame, a front die core is arranged on the front die frame in a matched mode, and the front die core and the rear die core are spliced into a cavity. A sprue bush is arranged on the front mold frame, and a boss matched with the bottom of the sprue bush is arranged on the rear mold frame; a first air cylinder capable of driving the boss to slide is arranged on the upper side of the rear mold core, and a first shaping block is fixed to the side, facing the cavity, of the boss; a second shaping block, a first sliding block and a second air cylinder for driving the first sliding block to move are arranged on the lower side of the rear mold core; a third shaping block is arranged on the left side of the rear mold core and installed on a second sliding block, an inclined inserting hole is formed in the second sliding block, an inclined rod is arranged on the front mold frame, and the inclined rod is matched with the lower inserting hole to drive the third shaping block to enter or leave the mold cavity. The boss, matched with the sprue bush, on the rear mold core is arranged to be of a movable structure, and the first shaping block is arranged on the inner side of the boss, so that quick demolding is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of engine molding, in particular to an engine throttle molding die. Background Art

[0002] Die casting is a metal casting process characterized by the use of a mold cavity to apply high pressure to the molten metal. The mold is usually made of a stronger alloy and the process is somewhat similar to injection molding. Die casting is particularly suitable for manufacturing a large number of small and medium-sized castings, so die casting is the most widely used of various casting processes.

[0003] The engine throttle is a controllable valve that controls the air entering the engine. After the gas enters the intake pipe, it mixes with gasoline to become a combustible mixture, which is then burned to produce work. Therefore, the throttle has multiple inlets and outlets. During die casting, there are mold blocks inserted in all directions, which makes it impossible to demold at one time, resulting in low die casting efficiency. Utility Model Content

[0004] In order to solve the above problems, the utility model provides an engine throttle forming die which can be quickly demoulded and has high die-casting efficiency.

[0005] To this end, the technical solution of the utility model is: the engine throttle molding mold comprises a front mold frame and a rear mold frame, the rear mold frame is fixed with a rear mold core, the front mold frame is matched with a front mold core, and the front mold core and the rear mold core are combined into a cavity; the front mold frame is provided with a gate sleeve, and the rear mold frame is provided with a boss adapted to the bottom of the gate sleeve;

[0006] A first cylinder that can drive the boss to slide is provided on the upper side of the rear mold core, and a first molding block is fixed on the side of the boss facing the cavity; a second molding block, a first slider and a second cylinder that drives the first slider to move are provided on the lower side of the rear mold core; a third molding block is provided on the left side of the rear mold core, the third molding block is installed on the second slider, the second slider is provided with an inclined hole, and an inclined rod is provided on the front mold frame, which cooperates with the lower hole to drive the third molding block to enter or leave the cavity.

[0007] On the basis of the above scheme and as a preferred scheme of the above scheme: a first shaping column is provided in the middle of the rear mold core, a second shaping column is provided in the middle of the front mold core, and the positions of the first shaping column and the second shaping column are offset.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: the front mold core is provided with an inlet runner, one end of the inlet runner is connected to the gate sleeve, and the other end is divided into multiple branches, which are respectively connected to the upper side and the left and right sides of the cavity.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: a slideway is respectively provided on the upper side, the lower side and the left side of the rear mold core, and the boss, the first slider and the second slider are slidably installed in each slideway in sequence.

[0010] On the basis of the above scheme and as a preferred scheme of the above scheme: an inclined limit block is respectively provided on the upper side, the lower side and the left side of the front mold core. When the front mold core and the rear mold core are assembled, the three limit blocks respectively abut against the outer side of the boss, the first slider and the second slider.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The boss on the rear mold core that cooperates with the gate sleeve is set as a movable structure, and a first shaping block is set on the inner side thereof. The second shaping block on the lower side is installed on the first slider, which is driven by the first cylinder and the second cylinder respectively, so that the first shaping block and the second shaping block enter or leave the cavity; the third shaping block on the side is installed on the second slider, and the oblique plug hole on the second slider cooperates with the oblique rod on the front mold frame. When the front mold frame and the rear mold frame are assembled, the oblique rod drives the second slider to move inward. When the front mold frame and the rear mold frame are separated, the oblique rod drives the second slider to move outward, so that the third shaping block enters or leaves the cavity, and the demoulding work is completed quickly.

[0013] 2. A limit block is set on the upper side, lower side and left side of the front mold frame. When the front mold core and the rear mold core are assembled, the three limit blocks are respectively against the outside of the boss, the first slider and the second slider. The limit blocks can ensure that the first shaping block, the second shaping block and the third shaping block are completely entered into the mold cavity to ensure the quality of die casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a structural sectional view of the utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the utility model (hiding the front mold frame and the front mold core);

[0017] Figure 4 It is a structural schematic diagram of the rear mold frame of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the front mold frame of the utility model;

[0019] Figure 6 It is a schematic diagram of the coordination of various shaping blocks of the utility model;

[0020] Figure 7 for Figure 6 Exploded view of parts.

[0021] Marked in the figure are: front mold frame 1, front mold core 11, second shaping column 12, inclined rod 13, limit block 14, rear mold frame 2, rear mold core 21, boss 22, first shaping column 23, first shaping block 24, second shaping block 25, third shaping block 26, gate sleeve 3, inlet runner 31, first cylinder 41, first slide 42, second slide 43, first slider 44, second cylinder 45, third slide 46, second slider 47, inclined hole 48, engine throttle 5. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" and "a number" is two or more, unless otherwise clearly and specifically defined.

[0024] See the attached drawings. The engine throttle molding die of this embodiment comprises a front mold frame 1 and a rear mold frame 2, a rear mold core 21 is fixed on the rear mold frame 2, a front mold core 11 is provided on the front mold frame 1, and the front mold core 11 and the rear mold core 21 are assembled into a cavity; a gate sleeve 3 is provided on the front mold frame 1, and a boss 22 adapted to the bottom of the gate sleeve is provided on the rear mold frame 2; a pouring runner 31 is provided on the front mold core 1, one end of the pouring runner 31 is connected to the gate sleeve 3, and the other end is divided into multiple branches, which are respectively connected to the upper side and the left and right sides of the cavity.

[0025] A first shaping column 23 is disposed in the middle of the rear mold core 21, and a second shaping column 12 is disposed in the middle of the front mold core 11. The first shaping column 23 is located opposite to the second shaping column 12. The first shaping column 23 is provided with an avoidance groove for accommodating a slag bag.

[0026] The upper side of the rear mold core 21 is provided with a first cylinder 41 that can drive the boss 22 to slide. The upper side of the rear mold core 21 is provided with a vertical first slideway 42. The boss 22 is slidably arranged in the first slideway 42, and the first shaping block 24 is fixed to the side of the boss 22 facing the cavity. The boss 22 on the rear mold core 21 that cooperates with the gate sleeve 3 is set as a movable structure, and the first shaping block 24 is set inside it. During die casting, the first cylinder 41 can push the boss 22 to one side of the cavity, so that the first shaping block 24 enters the cavity. During demolding, the first cylinder 41 can move the boss 22 to the side away from the cavity, so that the first shaping block 24 leaves the cavity.

[0027] A second vertical slideway 43, a second shaping block 25, a first slider 44, and a second cylinder 45 for driving the first slider 44 are provided at the lower side of the rear mold core 21; the first slider 44 is slidably installed in the second slideway 43, the lower end of the first slider 44 is connected to the second cylinder 45, and the upper end of the first slider 44 is installed with the second shaping block 25. During die casting, the second cylinder 45 can push the first slider 44 toward one side of the cavity, so that the second shaping block 25 enters the cavity, and during demolding, the second cylinder 45 can move the first slider 44 away from the cavity, so that the second shaping block 25 leaves the cavity.

[0028] The left side of the rear mold core 21 is provided with a horizontal third slide 46, a third shaping block 26 and a second slider 47. The second slider 47 is slidably arranged in the third slide 46. The second slider 47 is provided with an oblique insertion hole 48. The third shaping block 26 is installed on the second slider 47. The front mold frame 1 is provided with an oblique rod 13, which can be inserted into the oblique insertion hole 48 to drive the third shaping block 26 to enter or leave the mold cavity. During die casting, the front mold frame 1 and the rear mold frame 2 are assembled, and the oblique rod 13 drives the second slider 47 to move inward, so that the third shaping block 26 enters the mold cavity; during demolding, when the front mold frame 1 and the rear mold frame 2 are separated, the oblique rod 13 drives the second slider 47 to move outward, so that the third shaping block 26 leaves the mold cavity, and the demolding work is completed quickly.

[0029] An inclined stopper 14 is provided on the upper side, the lower side and the left side of the front mold core 11. When the front mold core 11 is assembled with the rear mold core 21, the three stopper blocks 14 are respectively against the outside of the boss 22, the first slider 44 and the second slider 47. The stopper blocks can ensure that the first shaping block 24, the second shaping block 25 and the third shaping block 26 are completely inserted into the mold cavity to ensure the quality of die casting.

[0030] The engine throttle 5 described in this embodiment is formed by die-casting the first shaping block 24, the second shaping block 25, the third shaping block 26, the first shaping column 23, the second shaping column 12 and the cavity, and can be demoulded in one step.

[0031] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An engine throttle molding die comprises a front die frame and a rear die frame, wherein a rear die core is fixed on the rear die frame, and a front die core is matched on the front die frame, and the front die core and the rear die core are combined into a cavity; a sprue sleeve is provided on the front die frame, and a boss adapted to the bottom of the sprue sleeve is provided on the rear die frame; the characteristics are as follows: A first cylinder that can drive the boss to slide is provided on the upper side of the rear mold core, and a first molding block is fixed on the side of the boss facing the cavity; a second molding block, a first slider and a second cylinder that drives the first slider to move are provided on the lower side of the rear mold core; a third molding block is provided on the left side of the rear mold core, the third molding block is installed on the second slider, the second slider is provided with an inclined hole, and an inclined rod is provided on the front mold frame, which cooperates with the lower hole to drive the third molding block to enter or leave the cavity.

2. The engine throttle valve forming mold according to claim 1, characterized in that: A first shaping column is arranged in the middle of the rear mold core, and a second shaping column is arranged in the middle of the front mold core, and the positions of the first shaping column and the second shaping column are opposed to each other.

3. The engine throttle valve forming mold according to claim 1, characterized in that: The front mold core is provided with a pouring runner, one end of which is connected to the gate sleeve, and the other end is divided into multiple branches, which are connected to the upper side and the left and right sides of the cavity respectively.

4. The engine throttle valve forming mold according to claim 1, characterized in that: A slideway is respectively arranged on the upper side, the lower side and the left side of the rear mold core, and the boss, the first slide block and the second slide block are slidably installed in each slideway in sequence.

5. The engine throttle valve forming mold according to claim 1, characterized in that: An inclined limiting block is respectively arranged on the upper side, the lower side and the left side of the front mold core. When the front mold core and the rear mold core are assembled, the three limiting blocks respectively abut against the outer sides of the boss, the first slide block and the second slide block.

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