CN211515792U - Filter shell stamping die - Google Patents

Abstract

The utility model discloses a filter shell stamping die, include: the lower die comprises a lower die base, an upper die base, a lower die body for supporting the inner wall surface of the filter shell and an upper die body for supporting the outer wall surface of the filter shell; the lower die body includes: an outer mold body and an inner mold body; the inner mold body is fixed to the outer mold body; the outer mold body is provided with an inner cavity for mounting the inner mold body; the inner die body is arranged in the inner cavity; a liquid inlet groove is formed at the top of the inner die body; a liquid outlet groove is formed at the bottom end of the inner die body; a liquid inlet channel which penetrates through the inner die body and is used for allowing cooling liquid to enter the liquid inlet groove is formed in the center of the inner die body; a plurality of cooling channels which are communicated with the liquid inlet groove and the liquid outlet groove and are used for cooling liquid to enter the liquid outlet groove from the liquid inlet groove are formed between the outer surface of the inner die body and the wall of the inner cavity; the plurality of cooling channels are uniformly distributed around the inner mold body; the inner mold body forms a liquid outlet channel for discharging the cooling liquid in the liquid outlet groove. The utility model discloses an useful part lies in reducing the defective percentage to the cooling of lower mould body.

Description

Filter shell stamping die

Technical Field

The utility model relates to a filter shell stamping die.

Background

The filter is a filter that filters impurities or gas through filter paper.

And the filter shell is punched and stretched by the relative motion of the upper die body and the lower die body. The filter shell needs a large stretching size, and after long-time stamping, due to the fact that the temperature of the lower die body rises greatly, defective products such as flower drawing or unqualified precision are prone to occurring, and the defective rate is increased.

SUMMERY OF THE UTILITY MODEL

For solving the not enough of prior art, the utility model provides a filter housing stamping die reduces the defective percentage through cooling down the lower mould body.

In order to achieve the above object, the utility model adopts the following technical scheme:

a filter housing stamping die, comprising: the lower die comprises a lower die base, an upper die base, a lower die body for supporting the inner wall surface of the filter shell and an upper die body for supporting the outer wall surface of the filter shell; the lower die body is arranged on the lower die base; the upper die body is arranged on the upper die base; the upper die base moves relative to the lower die base so as to enable the upper die body to move relative to the lower die body; the lower die body includes: an outer mold body and an inner mold body; the inner mold body is fixed to the outer mold body; the outer mold body is provided with an inner cavity for mounting the inner mold body; the inner die body is arranged in the inner cavity; a liquid inlet groove is formed at the top of the inner die body; a liquid outlet groove is formed at the bottom end of the inner die body; a liquid inlet channel which penetrates through the inner die body and is used for allowing cooling liquid to enter the liquid inlet groove is formed in the center of the inner die body; a plurality of cooling channels which are communicated with the liquid inlet groove and the liquid outlet groove and are used for cooling liquid to enter the liquid outlet groove from the liquid inlet groove are formed between the outer surface of the inner die body and the wall of the inner cavity; the plurality of cooling channels are uniformly distributed around the inner mold body; the inner mold body forms a liquid outlet channel for discharging the cooling liquid in the liquid outlet groove.

Further, the filter housing stamping die further comprises: the movable seat is matched with the upper die body to clamp the bottom of the filter shell; the movable seat is annularly sleeved on the periphery of the lower die body.

Further, the filter housing stamping die further comprises: and the hydraulic cylinder is used for pushing the movable seat to move.

Further, the filter housing stamping die further comprises: an upper pressure plate matched with the lower die body to clamp the top of the filter shell; the upper pressing plate is connected to the upper die holder in a sliding manner.

Further, the filter housing stamping die further comprises: a pressure spring for pushing the upper pressure plate to move towards the lower die body; the pressure spring is arranged between the upper pressure plate and the upper die base.

Furthermore, the inner die body is in a step shape and comprises a thick section and a thin section; the diameter of the thick section is larger than that of the thin section; the thin section is arranged above the thick section.

Further, a liquid inlet groove is formed at the top of the thin section; the top of the thick section forms a liquid outlet groove.

Further, the liquid outlet channel penetrates through the thick section.

Furthermore, the liquid outlet channel is parallel to the liquid inlet channel.

Further, the number of cooling channels was 6.

The utility model discloses an useful part lies in the filter shell stamping die that provides, cools off the cooling through interior die body to effectively reduce the defective percentage.

And assembling the lower die body in a mode of adopting an outer die body and an inner die body. The outer surface of the outer die body does not need to be provided with a pipeline or an aperture, the outer surface of the outer die body is not changed, the stamping and stretching precision can be guaranteed, and the lower die body can be cooled.

The cooling liquid does not need to be sprayed outside the lower die body, and the shell of the filter cannot be polluted.

Drawings

Fig. 1 is a schematic view of a filter housing stamping die according to the present invention in a die assembly state;

FIG. 2 is a schematic view of the filter housing stamping die of FIG. 1 in an open position;

FIG. 3 is a cross-sectional view of a lower mold body of the filter housing stamping die of FIG. 1;

FIG. 4 is a top view of an inner mold body of the lower mold body of FIG. 3.

The die comprises a filter shell stamping die 100, a lower die holder 10, an upper die holder 20, a lower die body 30, an outer die body 31, an inner die body 32, a liquid inlet groove 33, a liquid outlet groove 34, a liquid inlet channel 35, a cooling channel 36, a liquid outlet channel 37, an upper die body 40, a movable seat 50, an upper pressing plate 60, a pressure spring 61 and a filter shell 200.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 4, a filter case punching die 100 includes: the die comprises a lower die holder 10, an upper die holder 20, a lower die body 30 and an upper die body 40.

The lower mold body 30 supports an inner wall surface of the filter case 200. The upper mold body 40 supports the outer wall surface of the filter case 200. The lower die body 30 is mounted to the lower die base 10. The upper die body 40 is mounted to the upper die base 20. The upper die shoe 20 moves relative to the lower die shoe 10 to move the upper die body 40 relative to the lower die body 30.

The lower mold body 30 includes: an outer mold body 31 and an inner mold body 32. The inner mold body 32 is fixed to the outer mold body 31. The outer casing 31 defines an internal cavity for receiving the inner casing 32. The inner mold body 32 is disposed within the cavity.

The top of the inner mold body 32 is formed with an inlet slot 33. The bottom end of the inner mold body 32 is formed with a liquid outlet groove 34.

The center of the inner mold body 32 is formed with a liquid inlet passage 35. An inlet passage 35 extends through the inner mold body 32 for the coolant to enter the inlet slot 33.

A plurality of cooling passages 36 are formed between the exterior surface of the inner mold body 32 and the walls of the interior cavity. The cooling channel 36 communicates the inlet slot 33 and the outlet slot 34 for the cooling liquid to enter from the inlet slot 33 to the outlet slot 34. A plurality of cooling passages 36 are evenly distributed around the inner mold body 32. The number of cooling channels 36 is 6. The cooling channels 36 of the uniform ring distribution help to cool the lower mold body 30 in all directions, ensuring stability in all positions in the circumferential direction.

The inner mold body 32 is formed with a liquid outlet passage 37 for discharging the coolant in the liquid outlet tank 34.

The coolant enters the liquid inlet groove 33 from the liquid inlet passage 35, and cools the lower mold body 30 through the cooling passage 36. The cooling liquid enters the liquid outlet groove 34 after passing through the cooling channel 36, and is discharged from the liquid outlet channel 37, so that the cooling of the lower die body 30 is completed.

The phenomenon of the filter housing being drawn due to the temperature rise of the lower mold body 30 during continuous operation is effectively prevented by cooling the interior of the lower mold body 30.

The filter case punching die 100 further includes: and a movable seat 50 engaged with the upper mold body 40 to hold the bottom of the filter housing 200. The movable seat 50 is annularly sleeved on the periphery of the lower mold body 30. The filter case punching die 100 further includes: and the hydraulic cylinder is used for pushing the movable seat 50 to move. When the mold is opened, the movable seat 50 is lifted to push the bottom of the filter housing 200, so that the filter housing 200 can be separated from the lower mold 30.

The filter case punching die 100 further includes: an upper press plate 60 holding the top of the filter case 200 in cooperation with the lower mold body 30. The upper platen 60 is slidably connected to the upper die base 20. The filter case punching die 100 further includes: pushing a compression spring 61 that moves the upper platen 60 toward the lower mold body 30. The compression spring 61 is provided between the upper platen 60 and the upper die base 20. The upper platen 60, when closed, applies pressure to the top of the filter housing 200 to help hold the blank stationary and stabilize the top as the filter housing blank is stretched. The upper platen 60 is also capable of pushing the filter case to fall while the mold is being opened to prevent the filter case from adhering to the upper mold body 40.

The inner mold body 32 is stepped to include a wide section and a narrow section. The diameter of the thick section is larger than that of the thin section. The thin section is arranged above the thick section.

The top of the thin section forms an inlet tank 33. The top of the thick section forms a liquid outlet channel 34. The liquid outlet channel 37 penetrates the thick section. The outlet channel 37 is parallel to the inlet channel 35. A sealing ring is arranged between the inner mold body 32 and the outer mold body 31 to prevent the cooling liquid from leaking outside. Specifically, a seal ring is provided between the thick section and the wall of the inner cavity of the outer mold body 31.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by adopting equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims (10)

1. A filter housing stamping die, comprising: the lower die comprises a lower die base, an upper die base, a lower die body for supporting the inner wall surface of the filter shell and an upper die body for supporting the outer wall surface of the filter shell; the lower die body is mounted to the lower die base; the upper die body is mounted to the upper die base; the upper die base moves relative to the lower die base so as to enable the upper die body to move relative to the lower die body; characterized in that, the die body includes: an outer mold body and an inner mold body; the inner mold body is fixed to the outer mold body; the outer mold body is provided with an inner cavity for mounting the inner mold body; the inner die body is arranged in the inner cavity; a liquid inlet groove is formed at the top of the inner die body; a liquid outlet groove is formed at the bottom end of the inner die body; a liquid inlet channel which penetrates through the inner die body and is used for allowing cooling liquid to enter the liquid inlet groove is formed in the center of the inner die body; a plurality of cooling channels which are communicated with the liquid inlet groove and the liquid outlet groove and are used for cooling liquid to enter the liquid outlet groove from the liquid inlet groove are formed between the outer surface of the inner die body and the wall of the inner cavity; the plurality of cooling channels are uniformly distributed around the inner die body; the inner die body is formed with a liquid outlet channel for discharging the cooling liquid in the liquid outlet groove.

2. The filter housing press-molding die according to claim 1,

the filter housing stamping die further comprises: the movable seat is matched with the upper die body to clamp the bottom of the filter shell; the movable seat is annularly sleeved on the periphery of the lower die body.

3. The filter housing press-molding die according to claim 2,

the filter housing stamping die further comprises: and the hydraulic cylinder is used for pushing the movable seat to move.

4. The filter housing press-molding die according to claim 1,

the filter housing stamping die further comprises: the upper pressing plate is matched with the lower die body to clamp the top of the filter shell; the upper pressure plate is connected to the upper die holder in a sliding mode.

5. The filter housing press-molding die according to claim 4,

the filter housing stamping die further comprises: a pressure spring for pushing the upper pressure plate to move towards the lower die body; the pressure spring is arranged between the upper pressure plate and the upper die holder.

6. The filter housing press-molding die according to claim 1,

the inner die body is in a step shape and comprises a thick section and a thin section; the diameter of the thick section is larger than that of the thin section; the thin section is arranged above the thick section.

7. The filter housing press-molding die of claim 6,

the top of the thin section forms the liquid inlet groove; the top of the thick section forms the liquid outlet groove.

8. The filter housing press-molding die of claim 7,

the liquid outlet channel penetrates through the thick section.

9. The filter housing press mold of claim 8,

the liquid outlet channel is parallel to the liquid inlet channel.

10. The filter housing press-molding die according to claim 1,

the number of cooling channels is 6.

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