CN211138005U - A core secondary demoulding mechanism for car speed change casing mould - Google Patents

Abstract

The utility model discloses a core secondary demoulding mechanism for an automobile transmission shell mold, which comprises a bottom plate, a lower mold is fixedly connected to the bottom plate, a slot is formed in the middle of the upper surface of the lower mold, and the inner cavity of the slot is symmetrical The sliding sleeve is connected with the slider, the middle part of both sides of the slider is fixedly connected to the limit rod, the two sides of the inner wall of the slot are provided with a card slot, the inner cavity of the card slot is slidably sleeved with the limit rod, and the upper surface of the slider is The middle part is provided with a guide groove, the top of the lower mold is provided with an upper mold, the middle parts on both sides of the lower surface of the upper mold are fixedly connected with inclined guide posts, and the inner cavity of the guide groove matches the inclined guide posts. The utility model utilizes the setting method of the sliding block, two sliding blocks are symmetrically connected on the lower mold, and the guide groove and the inclined guide column are used together, so that when the mold is separated, the two sliding blocks move opposite to each other, so as to achieve the effect of mold separation. , to prevent the sliders on both sides from being clamped to the irregularly shaped part of the speed change housing, and the sliders are easy to disassemble.

Description

A core secondary demoulding mechanism for automobile transmission shell mold

technical field

The utility model relates to the field of secondary demoulding mechanisms for cores of moulds, in particular to a secondary demoulding mechanism for cores used in automobile transmission housing moulds.

Background technique

In the existing injection molding production, when processing products with simple structure and regular shape, the injection molded product can be detached from the mold after only one demoulding process. , In particular, some products have buckles in the shape, such as the automobile transmission housing module, the injection mold usually adopts the forced demoulding technology, which will cause damage to the protruding part of the automobile transmission housing, resulting in the deformation and buckle of the product part. Fracture defects, resulting in low product qualification rate.

Utility model content

The purpose of the present utility model is to provide a core secondary demoulding mechanism used for an automobile transmission housing mold, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a core secondary demoulding mechanism for an automobile transmission housing mold, comprising a bottom plate, the middle part of the upper surface of the bottom plate is fixedly connected with a lower mold, and the lower The middle part of the upper surface of the mold is provided with a slot, the inner cavity of the slot is symmetrically slidably sleeved with a slider, the middle parts of both sides of the slider are fixedly connected with limit rods, and both sides of the inner wall of the slot are opened There is a card slot, the inner cavity of the card slot is slidably sleeved with the limit rod, the middle part of the upper surface of the slider is provided with a guide groove, the top of the lower mold is provided with an upper mold, and the lower surface of the upper mold has two sides. The middle part of the side is fixedly connected with the inclined guide post, and the inner cavity of the guide groove is matched with the inclined guide post.

Preferably, elastic blocks are symmetrically fixed on both sides of the slider, limit grooves are symmetrically defined on both ends of the inner wall of the slot, and the inner cavity of the limit grooves slides against the elastic block. catch.

Preferably, a support frame is fixedly connected to the middle of the upper surface of the bottom plate, a sliding hole is symmetrically opened at the top of the support frame, a connecting rod is slidably sleeved in the inner cavity of the sliding hole, and the bottom of the connecting rod is connected to the upper Mold fixed connection.

Preferably, a through hole is formed in the middle of the upper surface of the support frame, the inner cavity of the through hole is fixedly connected with a hydraulic cylinder, and the output end of the hydraulic cylinder is drivingly connected to the middle of the upper surface of the upper mold.

Preferably, a limit hole is formed in the middle of the upper surface of the bottom plate, a connection hole is formed in the middle of the lower surface of the lower mold, and the inner cavity of the connection hole and the inner cavity of the limit hole are communicated with each other, and the connection hole The inner cavity of the thimble is slidably sleeved with a thimble, the inner cavity of the limiting hole is slidably sleeved with a limit plate, the bottom of the thimble is fixedly connected with the limit plate, and the outer wall of the thimble is slidably sleeved with a spring.

Preferably, the hydraulic cylinder is electrically connected to an external power source through an external hydraulic cylinder switch.

Technical effects and advantages of the present utility model:

1. The utility model utilizes the setting method of the sliders, the two sliders are symmetrically connected to the lower mold, and the guide grooves and the inclined guide columns are used together, so that when the molds are separated, the two sliders move opposite to each other, so as to achieve the separation of the molds. It can prevent the sliders on both sides from being clamped to the irregularly shaped part of the transmission housing, causing damage to the product, and the sliders are easy to disassemble;

2. The utility model utilizes the setting method of the ejector pin. After the first demoulding is completed, the ejector needle is demolded for the second time, so that the product can be completely separated from the mold, avoid damage to the product, improve the qualification rate of the speed change housing, and The production efficiency of the transmission case is improved.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the utility model.

FIG. 2 is a schematic diagram of the side internal structure of the utility model.

Figure 3 is a schematic diagram of the front internal structure of the utility model.

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 2 of the present utility model.

In the picture: 1. Bottom plate; 2. Lower mold; 3. Slotting; 4. Slider; 5. Limit rod; 6. Card slot; 7. Guide groove; 8. Upper mold; 9. Oblique guide column; 10 , elastic block; 11, support frame; 12, sliding hole; 13, connecting rod; 14, through hole; 15, hydraulic cylinder; 16, limit hole; 17, connecting hole; 18, thimble; 19, limit plate ; 20. Spring.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The utility model provides a core secondary demoulding mechanism for an automobile transmission housing mold as shown in Figs. 2. A slot 3 is provided in the middle of the upper surface. The inner cavity of the slot 3 is symmetrically slidingly sleeved with a slider 4. Pull the slider 4 to both sides to remove the slider 4, which is convenient for the slider 4 and the lower mold. 2 maintenance, the middle of both sides of the slider 4 is fixedly connected to the limit rod 5, the two sides of the inner wall of the slot 3 are provided with a card slot 6, the inner cavity of the card slot 6 is slidingly sleeved with the limit rod 5, and the slider 4. The middle part of the upper surface is provided with a guide groove 7, the top of the lower mold 2 is provided with an upper mold 8, and the middle parts of both sides of the lower surface of the upper mold 8 are fixedly connected with inclined guide posts 9, and the inner cavity of the guide groove 7 is connected with the inclined guide. The column 9 is matched, and the inclined guide column 9 and the guide groove 7 have the same inclination angle. When the inclined guide column 9 falls vertically, the inclined guide column 9 slides in the inner cavity of the guide groove 7, thereby realizing the movement of the slider 4. Both sides of the slider 4 are symmetrically and fixedly connected with elastic blocks 10. When the inclined guide post 9 is separated from the guide groove 7, the elastic blocks 10 are slidably engaged with the limit grooves, and a position of the slider 4 is limited. When the inclined guide post 9 is slidably sleeved with the inner cavity of the guide groove 7, the elastic block 10 is elastically deformed and detached from the inner cavity of the limiting groove. The inner cavity of the position groove is slidably connected with the elastic block 10;

A support frame 11 is fixedly connected to the middle of the upper surface of the base plate 1 , a sliding hole 12 is symmetrically opened at the top of the support frame 11 , a connecting rod 13 is slidably sleeved in the inner cavity of the sliding hole 12 , and the bottom of the connecting rod 13 is fixedly connected with the upper mold 8 , the middle part of the upper surface of the support frame 11 is provided with a through hole 14, the inner cavity of the through hole 14 is fixedly connected with a hydraulic cylinder 15, and the output end of the hydraulic cylinder 15 is connected to the middle of the upper surface of the upper mold 8 by transmission;

A limit hole 16 is provided in the middle of the upper surface of the bottom plate 1, and the bottom of the inner cavity of the limit hole 16 is fixedly sleeved with an air intake pipe, so that the air pressure difference is generated in the limit hole 16, so that the ejector pin 18 separates the speed change housing from the mold, and the lower part is lowered. The middle part of the lower surface of the mold 2 is provided with a connecting hole 17, and the inner cavity of the connecting hole 17 and the inner cavity of the limiting hole 16 communicate with each other. The limit plate 19 is slidably sleeved, the bottom of the thimble 18 is fixedly connected with the limit plate 19, the outer wall of the thimble 18 is slidably sleeved with a spring 20, and the spring 20 gives the thimble 18 a restoring force;

The hydraulic cylinder 15 is electrically connected to an external power source through an external hydraulic cylinder switch.

The practical working principle of the present invention is as follows: the hydraulic cylinder switch is first turned on when the mold is working, the hydraulic cylinder 15 is energized to work, and the output end of the hydraulic cylinder 15 drives the upper mold 8 to descend. Under the cooperative use of the inclined guide post 9 and the guide groove 7, the two sliders 4 move toward each other until the upper mold 8 is in contact with the lower mold 2, and then the transmission housing is molded;

After the speed change housing is molded, the hydraulic cylinder switch is turned on, the hydraulic cylinder 15 is energized, and the hydraulic cylinder 15 drives the upper mold 8 to rise. Until the inclined guide post 9 is separated from the inner cavity of the guide groove 7, so as to achieve the effect of mold separation, then the elastic block 10 is slidably connected with the limit groove, and then the gas is introduced into the limit hole 16 from the air inlet pipe to make the limit The plate 19 moves in the inner cavity of the limiting hole 16, so that the ejector pin 18 pushes the speed change housing out of the inner cavity of the mold to realize the secondary demoulding.

Finally, it should be noted that the above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. , it can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements to some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model, All should be included within the protection scope of the present invention.

Claims (6)

1. The utility model provides a core secondary demoulding mechanism for automotive transmission housing mould, includes bottom plate (1), its characterized in that: the middle part of the upper surface of the bottom plate (1) is fixedly connected with a lower die (2), the middle part of the upper surface of the lower die (2) is provided with a groove (3), an inner cavity of the groove (3) is symmetrically and slidably sleeved with a sliding block (4), the middle parts of two sides of the sliding block (4) are fixedly connected with limiting rods (5), two sides of the inner wall of the groove (3) are provided with clamping grooves (6), the inner cavity of each clamping groove (6) is slidably sleeved with the limiting rods (5), the middle part of the upper surface of the sliding block (4) is provided with a guide groove (7), the top of the lower die (2) is provided with an upper die (8), the middle parts of two sides of the lower surface of the upper die (8) are fixedly connected with oblique guide pillars (9), and the inner cavity of the guide groove.

2. The secondary core demolding mechanism for the automobile transmission case mold as claimed in claim 1, wherein: the two sides of the sliding block (4) are symmetrically and fixedly connected with elastic clamping blocks (10), the two ends of the inner wall of the groove (3) are symmetrically provided with limiting grooves, and inner cavities of the limiting grooves are connected with the elastic clamping blocks (10) in a sliding and clamping mode.

3. The secondary core demolding mechanism for the automobile transmission case mold as claimed in claim 1, wherein: the middle part of the upper surface of the bottom plate (1) is fixedly connected with a support frame (11), slide holes (12) are symmetrically formed in the top of the support frame (11), an inner cavity of each slide hole (12) is sleeved with a connecting rod (13) in a sliding mode, and the bottom of each connecting rod (13) is fixedly connected with the upper die (8).

4. The secondary core demolding mechanism for the automobile transmission case mold as claimed in claim 3, wherein: through-hole (14) have been seted up in the middle part of support frame (11) upper surface, the inner chamber fixedly connected with pneumatic cylinder (15) of through-hole (14), the output of pneumatic cylinder (15) is connected with the middle part transmission of upper die (8) upper surface.

5. The secondary core demolding mechanism for the automobile transmission case mold as claimed in claim 1, wherein: spacing hole (16) have been seted up at the middle part of bottom plate (1) upper surface, connecting hole (17) have been seted up at the middle part of bed die (2) lower surface, just the inner chamber of connecting hole (17) and the inner chamber of spacing hole (16) communicate each other, thimble (18) have been cup jointed in the inner chamber of connecting hole (17) slip, limiting plate (19) have been cup jointed in the inner chamber slip of spacing hole (16), the bottom and limiting plate (19) fixed connection of thimble (18), spring (20) have been cup jointed in the outer wall slip of thimble (18).

6. The secondary core demolding mechanism for the automobile transmission case mold as claimed in claim 4, wherein: the hydraulic cylinder (15) is electrically connected with an external power supply through an external hydraulic cylinder switch.

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