CN210477550U - Wax mold forming die for lost wax casting - Google Patents

Abstract

The utility model discloses a wax pattern forming die for lost wax casting, including movable mould, cover half, ejection mechanism and base, four corners on the base are provided with the stand respectively, and the cover half is fixed to be set up on the stand, ejection mechanism sets up between base and cover half, ejection mechanism includes knockout plate, at least one knockout rod and four guide arms, and guide arm one end is all fixed in base four corners, and the guide arm other end passes knockout plate and cover half in proper order and stretches out to the cover half top, is provided with the positioning groove on the movable mould, and the guide arm stretches into in the positioning groove to the one end that stretches out to the cover half top, and clearance fit between the positioning grooves; one end of the ejector rod is fixedly connected to the ejector plate, and the other end of the ejector rod extends into the cavity of the fixed die; the base below the ejector plate is provided with a positioning block, the positioning block is provided with a groove, and the groove is internally provided with an ejector driving mechanism for driving the ejector plate to move up and down. The utility model provides a wax product at ejecting in-process, problem of easy damage.

Description

Wax mold forming die for lost wax casting

Technical Field

The utility model relates to a lost wax casting technical field, in particular to a wax matrix forming die for lost wax casting.

Background

In mould production, often need take out the product after the pouring is accomplished, often can meet in the process of taking out and take out difficult scheduling problem, current mould is provided with ejection mechanism, conveniently ejecting product. The existing ejection mechanism is used in a wax mould forming die for lost wax casting, and the damage to a product often occurs due to the problems that the ejection mechanism is single-point ejected, the ejection process is not controlled and the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the problem that appears in the above-mentioned technique, provide a wax matrix forming die for lost wax casting, this mould has solved the wax product at ejecting in-process, the problem of easy damage.

In order to solve the technical problem, the utility model discloses a technical scheme as follows:

a wax pattern forming die for lost wax casting comprises a movable die, a fixed die, an ejection mechanism and a base, wherein stand columns are arranged at four corners of the base respectively, the fixed die is fixedly arranged on the stand columns, the ejection mechanism is arranged between the base and the fixed die, the ejection mechanism comprises an ejection plate, at least one ejection rod and four guide rods, one ends of the guide rods are fixed at the four corners of the base, the other ends of the guide rods sequentially penetrate through the ejection plate and the fixed die and extend out of the fixed die, a positioning groove is formed in the movable die, and one end, extending out of the fixed die, of each guide rod extends into the positioning groove and is in clearance fit with the positioning groove; one end of the ejector rod is fixedly connected to the ejector plate, the other end of the ejector rod extends into the cavity of the fixed die, a positioning block is arranged on the base below the ejector plate, a groove is formed in the positioning block, and an ejection driving mechanism used for driving the ejector plate to move up and down is arranged in the groove.

Further, as a preferred technical scheme, the ejection driving mechanism comprises a fixed seat, a shell, a worm wheel and a lifting screw, the fixed seat is fixed at the bottom of the groove, the shell is fixed on the fixed seat, the worm is horizontally arranged in the shell through a bearing, one end of the worm sequentially penetrates through the shell and the positioning block and extends out of the positioning block, the worm wheel is arranged in the shell through the bearing and is meshed with the worm, the worm wheel is sleeved on the lifting screw and is in threaded connection with the lifting screw, and the lifting screw penetrates through the shell.

Furthermore, as a preferable technical scheme, a rotating handle is arranged at one end of the worm extending out of the positioning block.

Further, as an optimal technical scheme, a sealing plate is arranged on the groove, a round hole is formed in the sealing plate, and the lifting screw rod can extend out of the round hole and is connected to the ejector plate.

The utility model discloses the beneficial effect who has:

the utility model can be provided with a plurality of ejection rods, thereby preventing the damage to the product caused by overlarge pressure of the ejection point during ejection; the utility model discloses a worm mechanism makes the wax product totally controllable at the ejecting in-process after the pouring is accomplished as ejecting actuating mechanism.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a connecting structure diagram of the base, the positioning block and the ejection driving mechanism of the present invention;

fig. 3 is a schematic sectional view of the ejection mechanism of the present invention installed in the positioning block;

fig. 4 is the schematic structural diagram of the ejection driving mechanism of the present invention.

In the figure: the device comprises a base 1, a stand column 2, a fixed die 3, a movable die 4, a guide rod 5, an ejector rod 6, an ejector plate 7, a positioning block 8, a worm 9, a rotating handle 10, a lifting screw 11, a worm gear 12, a fixed seat 13, a shell 14 and a sealing plate 15.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, 2 and 3, the wax pattern forming die for lost wax casting comprises a movable die 4, a fixed die 3, an ejection mechanism and a base 1, wherein the four corners of the base 1 are respectively provided with a stand column 2, the fixed die 3 is fixedly arranged on the stand column 2, the ejection mechanism is arranged between the base 1 and the fixed die 3, the ejection mechanism comprises an ejection plate 7, at least one ejection rod 6 and four guide rods 5, one end of each guide rod 5 is fixed at the four corners of the base 1, the other end of each guide rod 5 sequentially penetrates through the ejection plate 7 and the fixed die 3 and extends out of the fixed die 3, the movable die 4 is provided with a positioning groove, and one end of each guide rod 5 extending out of the fixed die 3 extends into the positioning groove and is in clearance fit with the positioning grooves; one end of the ejector rod 6 is fixedly connected to the ejector plate 7, the other end of the ejector rod extends into the cavity of the fixed die 3, a positioning block 8 is arranged on the base 1 below the ejector plate 7, a groove is formed in the positioning block 8, and an ejection driving mechanism used for driving the ejector plate 7 to move up and down is arranged in the groove. The utility model discloses the center pillar 2 can support cover half 3, makes the whole frame of mould more stable. The ejection mechanism can adopt a plurality of ejection rods 6 to increase the ejection area, reduce the pressure of the ejection rods 6 and the product and prevent the ejection rods 6 from damaging the product. The positioning block 8 is used for positioning the ejector rod 6, and the ejector rod 6 is guaranteed to just reach the preset cavity ejection position of the fixed die 3 when the ejector plate 7 reaches the positioning block 8. The ejection driving mechanism is used for lifting the ejection plate 7, so that the ejection plate 7 obtains an upward force to drive the ejection rod 6 to move upwards. The ejection driving mechanism is hidden in the groove of the positioning block 8, so that the occupied space of the die can be saved.

As shown in fig. 4, the ejection driving mechanism includes a fixing seat 13, a housing 14, a worm 9, a worm wheel 12 and a lifting screw 11, the fixing seat 13 is fixed at the bottom of the groove, the housing 14 is fixed on the fixing seat 13, the worm 9 is horizontally arranged in the housing 14 through a bearing, one end of the worm 9 sequentially passes through the housing 14 and the positioning block 8 and extends out of the positioning block 8, the worm wheel 12 is arranged in the housing 14 through a bearing and is meshed with the worm 9, the worm wheel 12 is sleeved on the lifting screw 11 and is in threaded connection with the lifting screw 11, the lifting screw 11 passes through the housing 14 and is fixedly connected to the ejection plate 7. The worm wheel 12 and the worm 9 are used for ejecting the driving mechanism, so that the ejecting driving mechanism can be accurately controlled, the ejecting stability is effectively controlled, the worm 9 horizontally penetrates through the positioning block 8 and extends out of the positioning block 8, and the worm 9 can be conveniently driven to rotate. One end of the screw rod is provided with a rotating handle 10, so that the worm 9 is convenient to rotate, the control of the ejection driving mechanism is further enhanced, the ejection control process is more stable and accurate, and the operation of workers is more convenient and simpler.

The groove is provided with a sealing plate 15, a round hole is formed in the sealing plate 15, and the lifting screw 11 can extend out along the round hole and is connected to the ejector plate 7. The sealing plate 15 is used to prevent the external environment from damaging the structure of the ejector driver and affecting the lifting function. The round hole is used for guiding the lifting screw rod 11, so that the lifting stability is improved.

During operation, whether the lifting screw completely contracts back into the groove is checked, if not, the rotating handle is rotated to enable the lifting screw to return into the groove, after checking is completed, mold closing is carried out, the ejector rod reaches a preset position in the cavity of the fixed mold at the moment, after mold closing is completed, pouring is carried out, after pouring is completed, the movable mold is moved out, the rotating handle is rotated, the worm drives the worm gear to rotate, vertical rotating motion of the worm is converted into horizontal rotating motion of the worm gear, the worm gear drives the lifting screw to ascend, the lifting screw reaches the position of the ejector plate and drives the ejector plate to move upwards along the guide rod, the ejector plate drives the ejector rod to move upwards, products are ejected by the ejector rod, an ejection step is completed, and the rotating handle is rotated reversely to enable the lifting screw to.

The present invention is not limited to the above description and drawings, but should be understood as being illustrative and not restrictive, and the technical features can be replaced and modified without creative efforts by those skilled in the art according to the technical content disclosed, all falling within the scope of the present invention.

Claims (4)

1. A wax mould forming mould for lost wax casting, which comprises a movable mould (4), a fixed mould (3), an ejection mechanism and a base (1), it is characterized in that upright posts (2) are respectively arranged at the four corners of the base (1), a fixed die (3) is fixedly arranged on the upright posts (2), the ejection mechanism is arranged between the base (1) and the fixed die (3), the ejection mechanism comprises an ejection plate (7), at least one ejection rod (6) and four guide rods (5), one end of each guide rod (5) is fixed at the four corners of the base (1), the other end of each guide rod (5) sequentially penetrates through the ejector plate (7) and the fixed die (3) and extends out of the upper part of the fixed die (3), a positioning groove is formed in the movable die (4), and one end, extending out of the upper portion of the fixed die (3), of the guide rod (5) extends into the positioning groove and is in clearance fit with the positioning groove; one end of the ejector rod (6) is fixedly connected to the ejector plate (7), and the other end of the ejector rod extends into a cavity of the fixed die (3); the ejection mechanism is characterized in that a positioning block (8) is arranged on the base (1) below the ejection plate (7), a groove is formed in the positioning block (8), and an ejection driving mechanism used for driving the ejection plate (7) to move up and down is arranged in the groove.

2. The wax pattern forming mold for lost wax casting according to claim 1, the ejection driving mechanism comprises a fixed seat (13), a shell (14), a worm (9), a worm wheel (12) and a lifting screw (11), the fixed seat (13) is fixed at the bottom of the groove, the shell (14) is fixed on the fixed seat (13), the worm (9) is horizontally arranged in the shell (14) through a bearing, one end of the worm (9) sequentially penetrates through the shell (14) and the positioning block (8) and extends out of the positioning block (8), the worm wheel (12) is arranged in the shell (14) through a bearing, and is meshed with the worm (9), the worm wheel (12) is sleeved on the lifting screw rod (11), and the upper end of the lifting screw (11) penetrates through the shell (14) and is fixedly connected with the ejection plate (7).

3. The wax pattern forming die for lost wax casting according to claim 2, wherein a rotating handle (10) is provided on an end of the worm (9) extending out of the positioning block (8).

4. The wax pattern forming die for lost wax casting according to claim 2, wherein the groove is provided with a sealing plate (15), the sealing plate (15) is provided with a circular hole, and the lifting screw (11) can extend out along the circular hole and is connected to the ejector plate (7).

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