CN219686656U - Quick positioning mechanism for upper mold core and lower mold core - Google Patents
Quick positioning mechanism for upper mold core and lower mold core Download PDFInfo
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- CN219686656U CN219686656U CN202223051084.0U CN202223051084U CN219686656U CN 219686656 U CN219686656 U CN 219686656U CN 202223051084 U CN202223051084 U CN 202223051084U CN 219686656 U CN219686656 U CN 219686656U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 239000000843 powder Substances 0.000 abstract description 4
- 230000001629 suppression Effects 0.000 abstract 1
- 230000013011 mating Effects 0.000 description 7
- 238000000465 moulding Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000000748 compression moulding Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
Abstract
The utility model discloses a quick positioning mechanism for an upper mold core and a lower mold core, which belongs to the technical field of part assembly and consists of a mold sleeve, an upper mold core, a mold core and a lower mold core. The die sleeve is a hollow tubular part, an upper die core and a lower die core are arranged in the die sleeve, the die cores are assembled in the upper die core and the lower die core, two ends of the die cores are square shafts, and the middle of the die cores is cylindrical; when the die is assembled, the lower die core is placed on the lower die plate of the press, one end of the die core with the square shaft is placed in the square hole of the lower die core, the die sleeve is installed on the outer circle of the lower die core, the lower end face of the die sleeve is contacted with the lower die plate of the press, quantitative powder is placed in the die cavity of the die sleeve, the upper die core is placed in the circular hole of the die sleeve, and the circular shaft of the die core is placed in the circular hole of the upper die core, so that the die is assembled. This novel ingenious square axle of application for only produce axial up-and-down motion in the suppression process, and can not axial rotation's quick location, the part is few, overall structure is simple.
Description
Technical Field
The utility model belongs to the technical field of mold design and molding, and particularly relates to a quick positioning mechanism for an upper mold core and a lower mold core.
Background
The general compression molding die comprises a movable die fixing plate, a movable die core, a guide post, a fixed die fixing plate, a fixed die core, a guide sleeve, a positioning pin, a connecting screw and the like. The movable template is used for fixing the movable mold core and the guide post, the fixed template is used for fixing the mold core and the guide sleeve, and the movable mold and the fixed mold are positioned by the guide post and the guide sleeve to ensure the shape and the relative position of the product. The conventional mold design scheme has the advantages that more mold parts can increase the complexity and the processing cost of the mold, so that a new scheme is required to be found, the structure is simple, the parts are fewer, and the processing cost is low.
Disclosure of Invention
The utility model provides a positioning mechanism which only moves up and down axially in the compression molding process and does not rotate axially, aiming at the problem of easy displacement of a conventional compression molding die structure.
A quick locating mechanism for upper and lower mould cores is composed of mould sleeve, upper mould core, mould core and lower mould core.
An upper mold core and a lower mold core are arranged in the mold sleeve, the mold cores are assembled in the upper mold core and the lower mold core, two ends of the mold cores are square shafts, and the middle of the mold cores is cylindrical; when the quick positioning mechanism is assembled, the lower mold core is placed on the lower mold plate of the press, one end of the mold core with the square shaft is placed in the square hole of the lower mold core, the mold sleeve is installed on the excircle of the lower mold core, the lower end face of the mold sleeve is contacted with the lower mold plate of the press, quantitative powder is placed in the mold cavity of the mold sleeve, the upper mold core is placed in the circular hole of the mold sleeve, and the circular shaft of the mold core is placed in the circular hole of the upper mold core, so that the quick positioning mechanism for the upper mold core and the lower mold core is assembled.
The die sleeve is a hollow tubular part, an upper die core and a lower die core are arranged in the die sleeve, the die sleeve is hollow and is provided with a circular hole, and the inner diameter of the circular hole is respectively consistent with the diameters of cylinders of the upper die core and the lower die core. The circular holes are respectively matched with the cylindrical surfaces outside the upper mold core and the lower mold core.
The upper mold core is a cylindrical part, a round blind hole is formed downwards along the center from the upper end face, a round blind hole is formed upwards along the center from the lower end face, the middle part is a square through hole, and vent holes are uniformly distributed around the square through hole. The inner diameter of the round blind hole of the lower end face is consistent with the diameter of the cylinder in the middle of the core, the round blind hole of the lower end face is matched with the cylindrical surface in the middle of the core, the size of the square through hole in the middle is consistent with that of the square shaft in the upper end of the core, the square through hole in the middle is matched with the square shaft in the upper end of the core, the round blind hole of the upper end face is a non-matched surface, and the outer cylindrical surface is matched with the central round hole of the die sleeve.
The round blind hole of the lower end surface of the upper mold core is coaxial with the center of the square through hole in the middle of the mold core.
The lower mold core is a cylindrical part, a round blind hole is formed downwards along the center from the upper end face, and a square through hole is formed from the bottom of the blind hole to the lower end face. The blind hole of up end and the cylindrical surface in the middle part of the core are the mating surfaces, the square through hole and square shaft of core lower extreme are the mating surfaces, the outside cylindrical surface and the central circular hole of the die sleeve are the mating surfaces. The round blind hole of the upper end surface of the lower mold core is coaxial with the center of the square through hole.
The both ends of core are square axle, and the middle part is cylindrical, and the core is joined in marriage the inside of dress at last mold core and lower mold core, and the square axle of core upper end is the cooperation installation with the square through-hole at last mold core middle part, and the square axle of core lower extreme is the cooperation installation with the circular blind hole of lower mold core up end, and the cylindrical surface at core middle part is the mating surface with the circular face of last mold core lower extreme and the circular blind hole of lower mold core up end respectively. The square shafts at the two ends of the mold core realize the up-down relative movement of the upper mold core and the lower mold core along the radial direction and can not axially rotate, thereby realizing the quick positioning requirement of the quick positioning mechanism of the upper mold core and the lower mold core.
Working principle:
when the die is assembled, the lower die core is horizontally placed on the lower die of the press, the molding surface of the lower die core faces upwards, and then the square shaft at the lower end of the die core is placed in the square hole of the lower die core, so that the lower end face of the cylindrical surface of the die core is kept in contact with the bottom face of the blind hole of the lower die core. And then the die sleeve is assembled on the outer cylindrical surface of the lower die core, and the lower end surface of the die sleeve is kept in contact with the lower die plate of the press.
The dosing powder is then loaded into the cavity formed by the sleeve, lower core and the surface is flattened.
And finally, the molding surface of the upper mold core is downward, a square hole of the upper mold core is assembled on a square shaft at the upper end of the mold core, meanwhile, a round blind hole at the lower end surface of the upper mold core is matched with a cylindrical surface at the middle part of the mold core, and an outer cylindrical surface is matched with a round hole at the center of the mold sleeve.
And (5) finishing the assembly of the die.
When the upper die plate of the press machine moves downwards to be in contact with the upper end face of the upper die core, the upper die core starts to move downwards, and when the upper die core moves to a set stroke, the upper die core stops moving, pressure maintaining is carried out, and air in the die cavity is fully discharged.
After the pressing process is finished, the die is moved to a designated position, and the molded product is taken out by using a special die opening tool.
Advantageous effects
Compared with the prior art, the quick positioning mechanism for the upper mold core and the lower mold core skillfully uses the square shaft, realizes radial positioning of the upper mold core and the lower mold core through the square shaft, ensures that the upper mold core only moves axially and does not rotate axially relative to the lower mold core in the downward movement pressing process, thereby ensuring the relative position relationship between the upper end surface and the lower end surface of a part, omitting a relatively complex guide post and guide sleeve positioning mechanism, and having simple mold structure and lower cost; compared with the conventional die structure, the die has the advantages of few parts, simple overall structure, low complexity and obvious cost advantage.
Drawings
FIG. 1 is a block diagram of an upper and lower mold core quick positioning mechanism according to the present utility model;
FIG. 2 is a schematic view of a core of an upper and lower core quick positioning mechanism according to the present utility model;
wherein, 1-die sleeve; 2-an upper mold core; 3-cores; 4-lower mold core.
Detailed Description
The present utility model will be further described with reference to the drawings and examples.
Examples
An upper and lower mold core quick positioning mechanism is shown in figure 1: consists of a die sleeve, an upper die core 2, a die core 3 and a lower die core 4.
The die sleeve 1 is a hollow tubular part, an upper die core 2 and a lower die core 4 are arranged in the die sleeve, the die sleeve is hollow and is a circular hole, and the inner diameter of the circular hole is respectively consistent with the diameters of cylinders of the upper die core 2 and the lower die core 4.
The circular holes are matched with the cylindrical surfaces outside the upper mold core 2 and the lower mold core 4 respectively.
The upper mold core 2 is a cylindrical part, a round blind hole is formed downwards along the center from the upper end face, a round blind hole is formed upwards along the center from the lower end face, a square through hole is formed in the middle of the upper mold core, and 4 exhaust holes are uniformly distributed around the square through hole. The inner diameter of the round blind hole of the lower end face is consistent with the diameter of the cylinder in the middle of the core 3, the round blind hole of the lower end face is matched with the cylindrical surface in the middle of the core 3, the size of the square through hole in the middle is consistent with the size of the square shaft in the upper end of the core 3, the square through hole in the middle is matched with the square shaft in the upper end of the core 3, the round blind hole of the upper end face is a non-matched surface, and the outer cylindrical surface is matched with the central round hole of the die sleeve 1.
The round blind hole of the lower end surface of the upper mold core 2 is coaxial with the center of the square through hole in the middle of the mold core 3.
The lower mold core 4 is a cylindrical part, a round blind hole is formed downwards from the upper end face along the center, and a square through hole is formed from the bottom of the blind hole to the lower end face. The blind hole of up end and the face of cylinder in the middle part of core 3 are the mating surface, and square through-hole and the square axle of core 3 lower extreme are the mating surface, and outside face of cylinder and the central circular hole of die sleeve 1 are the mating surface. The round blind hole of the upper end surface of the lower mold core is coaxial with the center of the square through hole.
As shown in fig. 2: the two ends of the core 3 are square shafts, the middle part is cylindrical, the square shaft at the upper end and the square through hole at the middle part of the upper mold core 2 are matched surfaces, the square shaft at the lower end and the round blind hole at the upper end surface of the lower mold core 4 are matched surfaces, and the cylindrical surface at the middle part and the round surface hole at the lower end surface of the upper mold core 2 and the round blind hole at the upper end surface of the lower mold core 4 are respectively matched surfaces. The square shafts at the two ends of the mold core limit the upper mold core and the lower mold core to generate relative movement along the radial direction, thereby realizing the radial quick positioning requirement of the upper mold core and the lower mold core, and not affecting the movement of the upper mold core along the height direction of the mold.
Working principle:
during assembly, the lower mold core 4 is horizontally placed on a lower mold plate of a press machine, the molding surface of the lower mold core faces upwards, and then a square shaft at the lower end of the mold core 3 is installed in a square hole of the lower mold core 4, so that the lower end face of the cylindrical surface of the mold core 3 is kept in contact with the bottom face of a blind hole of the lower mold core 4. The die sleeve 1 is then assembled onto the outer cylindrical surface of the lower die core 4 while the lower end surface of the die sleeve 1 is held in contact with the press lower die plate.
The dosing powder is then loaded into the cavity formed by the sleeve, lower core and the surface is flattened.
And finally, enabling the molding surface of the upper mold core 2 to face downwards, assembling a square hole of the upper mold core on a square shaft at the upper end of the mold core 3, simultaneously, forming a fit between a round blind hole on the lower end surface of the upper mold core 2 and a cylindrical surface in the middle of the mold core 3, and forming a fit between an outer cylindrical surface and a round hole in the center of the mold sleeve 1.
And (5) finishing the assembly of the die.
When the upper die plate of the press machine moves downwards to be in contact with the upper end face of the upper die core 2, the upper die core 2 starts to move downwards, and when the upper die core moves to a set stroke, the upper die core stops moving, pressure maintaining is carried out, and air in the die cavity is fully discharged. After the pressing process is finished, the die is moved to a designated position, and the molded product is taken out by using a special die opening tool.
Although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.
Claims (1)
1. Quick positioning mechanism of upper and lower mold core, its characterized in that includes: the die comprises a die sleeve, an upper die core, a die core and a lower die core; wherein: the die sleeve is a hollow tubular part, an upper die core and a lower die core are arranged in the die sleeve, the hollow of the die sleeve is a circular hole, the inner diameter of the circular hole is respectively consistent with the cylindrical diameters of the upper die core and the lower die core, and the circular hole is respectively matched with the cylindrical surfaces outside the upper die core and the lower die core;
the upper mold core is a cylindrical part, a circular blind hole is formed downwards from the upper end surface along the center, a circular blind hole is formed upwards from the lower end surface along the center, a square through hole is formed in the middle of the upper mold core, exhaust holes are uniformly distributed around the square through hole, the inner diameter of the circular blind hole of the lower end surface is consistent with the diameter of a cylinder in the middle of the mold core, the circular blind hole of the lower end surface is a matching surface with the cylindrical surface in the middle of the mold core, the size of the square through hole in the middle is consistent with the size of a square shaft at the upper end of the mold core, the square through hole in the middle is a matching surface with the square shaft at the upper end of the mold core, the circular blind hole of the upper end surface is a non-matching surface, and the outer cylindrical surface is a matching surface with the central circular hole of the mold sleeve;
the round blind hole on the lower end surface of the upper mold core is coaxial with the center of the square through hole in the middle of the mold core;
the lower die core is a cylindrical part, a round blind hole is formed downwards from the upper end face along the center, a square through hole is formed from the bottom of the blind hole to the lower end face, the blind hole of the upper end face and the cylindrical surface in the middle of the die core are matched surfaces, the square through hole and the square shaft at the lower end of the die core are matched surfaces, the outer cylindrical surface and the central round hole of the die sleeve are matched surfaces, and the round blind hole of the upper end face of the lower die core is coaxial with the center of the square through hole;
the two ends of the core are square shafts, the middle part of the core is cylindrical, the square shaft at the upper end and the square through hole at the middle part of the upper core are matched surfaces, the square shaft at the lower end and the round blind hole at the upper end surface of the lower core are matched surfaces, and the cylindrical surface at the middle part and the round surface hole at the lower end surface of the upper core and the round blind hole at the upper end surface of the lower core are respectively matched surfaces; the square shafts at the two ends of the mold core limit the upper mold core and the lower mold core to generate relative motion along the radial direction, and the upper mold core and the lower mold core can not axially rotate, so that the upper mold core and the lower mold core can be rapidly positioned along the radial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223051084.0U CN219686656U (en) | 2022-11-15 | 2022-11-15 | Quick positioning mechanism for upper mold core and lower mold core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223051084.0U CN219686656U (en) | 2022-11-15 | 2022-11-15 | Quick positioning mechanism for upper mold core and lower mold core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219686656U true CN219686656U (en) | 2023-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223051084.0U Active CN219686656U (en) | 2022-11-15 | 2022-11-15 | Quick positioning mechanism for upper mold core and lower mold core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219686656U (en) |
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2022
- 2022-11-15 CN CN202223051084.0U patent/CN219686656U/en active Active
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