CN211304688U - Engine bearing cap casting structure and partition core - Google Patents

Abstract

The utility model relates to an engine bearing cap casting structure, it contains at least a set of casting template group, this casting template group contains front template unit and back template unit, front template unit has the front die cavity, back template unit has the back die cavity, add a baffle core between front die cavity and back die cavity, this baffle core left and right sides is provided with left baffle die cavity and right baffle die cavity, wherein, left baffle die cavity shape is the same with the back die cavity, constitute first shaping die cavity with the front die cavity; the shape of the right baffle plate die cavity is the same as that of the front die cavity, and the right baffle plate die cavity and the rear die cavity form a second forming die cavity. The partition plate core structure is additionally arranged between the original front template unit and the original rear template unit, so that the products produced in the same area reach twice of the original products, the process yield is improved, the production efficiency can be doubled, the production cost is reduced, and the economic benefit is improved.

Description

Engine bearing cap casting structure and partition core

Technical Field

The utility model relates to a casting industry field indicates a casting structure and used baffle core of engine bearing cap very much.

Background

The working mode in the casting field is generally that a casting mold is manufactured and designed according to a product required by a customer, and then liquid metal is poured into the casting mold to cast a corresponding product.

The general structure is that a front template unit and a rear template unit are called as a front template unit and a rear template unit, the front template unit is provided with a front die cavity, the rear template unit is provided with a rear die cavity, after the front template unit and the rear template unit are combined front and rear, the front die cavity and the rear die cavity are aligned together to form a molding die cavity for molding a casting, then liquid metal is poured into the molding die cavity, and the corresponding casting is cast. And the corresponding position of the casting is provided with a riser for feeding the casting, and after the casting is finished, the riser is removed to obtain the final product.

In actual production, a plurality of groups of front template units and rear template units, generally four groups, can be arranged on one template, so that casting products can be produced on the templates with the same area as much as possible, the yield is improved, and the economic benefit is very high.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem promptly provides a casting structure to engine bearing cap specially to and corresponding baffle core.

The technical means adopted by the utility model are as follows.

A casting structure of an engine bearing cover comprises at least one group of casting template group, wherein the casting template group comprises a front template unit and a rear template unit, the front template unit is provided with a front mold cavity, the rear template unit is provided with a rear mold cavity, a partition plate core is additionally arranged between the front mold cavity and the rear mold cavity, the left side and the right side of the partition plate core are provided with a left partition plate mold cavity and a right partition plate mold cavity, the shape of the left partition plate mold cavity is the same as that of the rear mold cavity, and a first molding cavity is formed by the left partition plate mold cavity and the front mold cavity; the shape of the right baffle plate die cavity is the same as that of the front die cavity, and the right baffle plate die cavity and the rear die cavity form a second forming die cavity.

The left side and the right side above the clapboard core are respectively provided with a gap part for connecting the riser, and the gap part is connected with the riser.

Each riser is connected with the first molding die cavity and the second molding die cavity through the left gap part and the right gap part.

The riser is of a round platform structure with a small upper part and a big lower part, a V-shaped groove which is arranged downwards is arranged at the center of the riser, and a cylindrical heat-insulating cover is sleeved on the outer side of the riser.

The included angle of the tip of the V-shaped groove is 60 degrees to 70 degrees, and the depth is 1/5 degrees to 1/2 degrees of the overall height of the round table.

The casting template comprises four groups of casting template groups, wherein the upper layers are arranged in parallel in two groups, and the opposite lower layers are arranged in parallel in two groups.

A left partition plate die cavity and a right partition plate die cavity are arranged on the left side and the right side of the partition plate core.

The left side and the right side above the clapboard core are respectively provided with a gap part for connecting a riser

The beneficial effects of the utility model are as follows. Add baffle core structure between original front formwork unit and back template unit for the product of same area output reaches two times original, and adopt special rising head structure to carry out the feeding, still can guarantee product quality under the circumstances that the rising head volume reduces, improves technology yield, and production efficiency can improve the one time, reduction in production cost improves economic benefits.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic side view of the structure of fig. 1.

Fig. 3 is another angle structure diagram of fig. 1.

Fig. 4 is a schematic view of a three-dimensional structure of the partition core of the present invention.

Detailed Description

As shown in fig. 1-3, an engine bearing cap casting structure comprises at least one casting template set 1, the casting template set 1 comprises a front template unit 11 and a rear template unit 12, the front template unit 11 is provided with a front mold cavity 111, the rear template unit 12 is provided with a rear mold cavity 121, and the important point is that a partition core 10 (arranged at the middle inner position in fig. 1, the specific structure of which is shown in fig. 4) is additionally arranged between the front mold cavity 111 and the rear mold cavity 121, and left and right sides of the partition core 10 are provided with left and right partition mold cavities 101 and 102, wherein the left partition mold cavity 101 has the same shape as the rear mold cavity 121 and forms a first molding mold cavity with the front mold cavity 111; the right bulkhead cavity 102 is the same shape as the front cavity 111, and constitutes a second molding cavity with the rear cavity 121.

With the structure, two same castings can be produced on the same plane area and are respectively positioned in the first forming die cavity and the second forming die cavity, and the two castings have the same structure, so that the requirements of customers can be met.

In the present embodiment, the partition core 10 is provided with notches 2 at the upper left and right sides thereof, respectively, for connecting the risers 3, and the notches 2 are used for connecting the risers 3.

Each riser 3 is connected with the first molding die cavity and the second molding die cavity through the left gap part and the right gap part 2, so that one riser can correspond to the left first molding die cavity and the right first molding die cavity, and the number of the risers is the same as that of the riser in the prior art although the product is doubled. In the drawings of this embodiment, each casting is provided with two risers, two risers corresponding to two castings, and two risers corresponding to only one casting.

The riser 3 is in a round platform structure with a small upper part and a big lower part, a V-shaped groove 31 which is arranged downwards is arranged at the center of the riser, and a cylindrical heat-insulating cover 32 is sleeved on the outer side of the riser. In the figure 1, the riser on the upper left side is buckled with the heat preservation cover, and the upper right side is not buckled with the heat preservation cover in order to clearly see the structure of the riser. The included angle alpha of the tip of the V-shaped groove is 60-70 degrees, and the depth is 1/5-1/2 of the overall height H of the circular truncated cone. The riser is a heat-insulating riser and can be made of low-heat-conduction materials, the feeding efficiency is higher, and the mechanical property of a bearing cover casting can be still met while the volume of the riser is reduced by adopting a V-shaped groove structure and a specific V-shaped groove angle, so that the yield is improved and is improved to about 55% from the original 38%.

Generally, as shown in fig. 1, a set of casting structure may include four sets of casting mold plates, two sets of upper layers are juxtaposed, and two sets of opposite lower layers are juxtaposed, so that a set of casting structure may be changed to 8 cast products from original 4 cast products in the same area, and the addition of the partition core itself may not greatly increase the weight of the whole casting structure, and is particularly suitable for producing thin cast products with large area and low weight.

Claims (8)

1. A kind of engine bearing cap casting structure, it includes at least a pack of casting die plate groups, this casting die plate group includes front template unit and rear template unit, the front template unit has front die cavities, the rear template unit has rear die cavities, characterized by that, increase a baffle core between front die cavity and rear die cavity, the left and right sides of the baffle core have left baffle die cavity and right baffle die cavity, wherein, the shape of the die cavity of left baffle is the same as rear die cavity, make up the first shaping die cavity with the front die cavity; the shape of the right baffle plate die cavity is the same as that of the front die cavity, and the right baffle plate die cavity and the rear die cavity form a second forming die cavity.

2. The casting structure of an engine bearing cap according to claim 1, wherein a notch portion to which the riser is connected is provided at each of left and right sides above the diaphragm core, and the notch portion is connected to the riser.

3. The engine bearing cap casting structure according to claim 2, wherein each riser connects the first molding cavity and the second molding cavity through left and right notches.

4. The casting structure of the engine bearing cap according to claim 3, wherein the feeder is a circular truncated cone structure with a small top and a large bottom, a V-shaped groove is formed in the center of the feeder, the V-shaped groove is formed in the center of the feeder, and a cylindrical heat-insulating cover is sleeved on the outer side of the feeder.

5. The engine bearing cap casting structure of claim 4, wherein the included angle of the tip of the V-shaped groove is 60 ° to 70 ° and the depth is 1/5 ° to 1/2 ° of the overall height of the truncated cone.

6. The engine bearing cap casting structure according to any one of claims 1 to 4, comprising four sets of the casting forms, two sets being juxtaposed in an upper layer and two sets being juxtaposed in an opposite lower layer.

7. A partition plate core is characterized in that a left partition plate die cavity and a right partition plate die cavity are arranged on the left side and the right side of the partition plate core.

8. The partition core according to claim 7, wherein notches are formed at left and right sides above the core for connecting the feeder.

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