CN212171044U - Ejection mechanism of centrifugal casting machine - Google Patents

Abstract

The utility model discloses a liftout mechanism of centrifugal casting machine. The material ejecting mechanism of the centrifugal casting machine comprises a hub material ejecting mechanism, a rim material ejecting mechanism and a driving mechanism; the hub ejection mechanism comprises an upper rod I and a lower rod I, the upper rod I is arranged at the upper end of the upper die, the lower end of the upper rod I is arranged in the hub forming cavity of the upper die and is connected with an upper plate I, the lower rod I is arranged at the lower end of the lower die, and the upper end of the lower rod I is arranged in the hub forming cavity of the lower die and is connected with a lower plate I; the rim ejection mechanism comprises an upper rod II and a lower rod II, the upper rod II is arranged above the upper die, and the lower end of the upper rod II is arranged in a cavity formed by the rim of the upper die and connected with an upper plate II; the lower rod II is vertically arranged below the lower die, and the upper end of the lower rod II is arranged in a cavity formed in the rim of the lower die and connected with an upper plate II; the driving mechanism is arranged on the machine body of the centrifugal casting machine. Can diversely carry out the liftout to the nylon wheel through wheel hub liftout mechanism and rim liftout mechanism, improve the stability of nylon wheel drawing of patterns in-process.

Description

Ejection mechanism of centrifugal casting machine

Technical Field

The utility model relates to a nylon wheel equipment field, in particular to make centrifugal casting machine's of nylon wheel liftout mechanism.

Background

The MC nylon is MCPA cast nylon, also called as cast nylon, is a novel engineering plastic, has excellent physical and chemical properties of good rigidity, high strength, low density, wear resistance, corrosion resistance, easy processing and the like, and is widely applied to various fields. The centrifugal casting machine is a production and manufacturing device of nylon wheels, after an upper die and a lower die are assembled, raw materials are directly injected into a preheated die, the upper die and the lower die are driven by a mandrel to rotate, so that the raw materials in a die cavity are rapidly subjected to polymerization reaction and are solidified and formed, then the die is opened, the formed nylon wheels are taken out from the upper die and the lower die, and how to realize stable demolding of the nylon wheels is a problem to be solved in the nylon wheel manufacturing process.

SUMMERY OF THE UTILITY MODEL

This application has improved the stability of the nylon wheel in drawing of patterns in-process through providing the liftout mechanism of centrifugal casting machine.

The embodiment of the application provides an ejection mechanism of a centrifugal casting machine, which comprises a hub ejection mechanism, a rim ejection mechanism and a driving mechanism; the hub ejection mechanism comprises an upper rod I, an upper plate I, a lower rod I and a lower plate I, the upper rod I is vertically arranged above an upper die, the lower end of the upper rod I is arranged in a cavity formed by the upper die hub and connected with the upper plate I, the lower rod I is vertically arranged at the lower end of a lower die, and the upper end of the lower rod I is arranged in the cavity formed by the lower die hub and connected with the lower plate I; the rim material ejecting mechanism comprises an upper rod II, an upper plate II, a lower rod II and a lower plate II, the upper rod II is vertically arranged above the upper die, and the lower end of the upper rod II is arranged in a cavity formed by the rim of the upper die and connected with the upper plate II; the lower rod II is vertically arranged below the lower die, and the upper end of the lower rod II is arranged in a cavity formed by the rim of the lower die and is connected with the upper plate II; the driving mechanism is arranged on a machine body of the centrifugal casting machine and used for driving the first upper rod, the second upper rod, the first lower rod and the second lower rod to move vertically.

The wheel hub of the nylon wheel in the pair of moulds of upper boom one, lower boom is driven through the actuating mechanism carries out the liftout to and the rim of the nylon wheel carries out the liftout in the pair of moulds of upper boom two, lower boom, realized the diversified liftout operation to the nylon wheel, make the nylon wheel deviate from in the mould that can be more stable at the drawing of patterns in-process.

On the basis of the technical scheme, the utility model discloses can also do as follows the improvement:

further: an upper groove I for placing the upper plate I is formed in the cavity bottom of the die cavity for forming the upper die wheel hub, an upper inclined plane I is formed in the side wall of the upper groove I, and an upper inclined plane II matched with the upper inclined plane I is formed in the outer side surface of the upper plate I; an upper groove II for placing the upper plate II is formed in the cavity bottom of the die cavity formed by the upper die wheel rim, an upper inclined plane III is formed in the side wall of the upper groove II, and an upper inclined plane IV matched with the upper inclined plane III is formed in the outer side surface of the upper plate II; a first lower groove for placing the first lower plate is formed in the cavity bottom of the mold cavity for molding the lower mold hub, a first lower inclined plane is formed in the side wall of the first lower groove, and a second lower inclined plane matched with the first lower inclined plane is formed on the outer side surface of the first lower plate; the bottom of the cavity of the die cavity for forming the lower die wheel rim is provided with a second lower groove for placing the second lower plate, the side wall of the second lower groove is provided with a third lower inclined surface, and the outer side surface of the second lower plate is a fourth lower inclined surface matched with the third lower inclined surface. The beneficial effect of this step: the sealing performance between the upper plate I, the upper plate II and the upper die is improved through the matching of the upper inclined plane II and the upper inclined plane I and the matching of the upper inclined plane IV and the upper inclined plane III, and the sealing performance between the lower plate I, the lower plate II and the lower die is improved through the matching of the lower inclined plane II and the lower inclined plane I and the matching of the lower inclined plane IV and the lower inclined plane III.

Further: the upper rod I, the upper rod II, the lower rod I and the lower rod II move towards the upper die and the lower die after being driven by the driving mechanism, and the reset mechanism is used for enabling the upper rod I, the upper rod II, the lower rod I and the lower rod II to reset.

Further: the reset mechanism comprises an upper elastic piece I, an upper pressure plate I, an upper elastic piece II, an upper pressure plate II, a lower elastic piece I, a lower pressure plate I, a lower elastic piece II and a lower pressure plate II; the upper pressure plate I is arranged at the upper end of the upper rod I, and the upper elastic piece I is arranged between the upper pressure plate I and the upper die; the upper pressing plate II is arranged at the upper end of the upper rod II, and the upper elastic piece II is arranged between the upper pressing plate II and the upper die; the lower pressing plate I is arranged at the lower end of the lower rod I, and the lower elastic piece I is arranged between the lower pressing plate I and the lower die; the lower pressing plate II is installed at the lower end of the lower rod II, and the lower elastic piece II is arranged between the lower pressing plate II and the lower die.

Further: the upper elastic piece I, the upper elastic piece II, the lower elastic piece I and the lower elastic piece II are cylindrical compression springs.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the hub ejection mechanism and the rim ejection mechanism can carry out ejection work on the nylon wheel in the die in multiple directions, so that the stability of the nylon wheel in the demolding process is improved, and the nylon wheel can be more easily released from the die;

2. the sealing performance between the upper plate I, the upper plate II and the upper die is improved through the matching of the upper inclined plane II and the upper inclined plane I and the matching of the upper inclined plane IV and the upper inclined plane III, and the sealing performance between the lower plate I, the lower plate II and the lower die is improved through the matching of the lower inclined plane II and the lower inclined plane I and the matching of the lower inclined plane IV and the lower inclined plane III;

3. through setting up canceling release mechanical system for actuating mechanism need not with upper boom one, upper boom two, lower beam one, lower beam two, directly links to each other, has reduced the required precision of upper boom one, upper boom two, lower beam one, lower beam two and actuating mechanism mutual mounted position.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic structural diagram according to a first embodiment;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a partial enlarged view of B in FIG. 2;

FIG. 4 is a schematic structural diagram according to the first embodiment;

FIG. 5 is an enlarged view of a portion C of FIG. 4;

FIG. 6 is an enlarged view of a portion D of FIG. 5;

fig. 7 is a partial enlarged view of E in fig. 5.

Wherein 1, a hub ejecting mechanism, a first 101 upper rod, a first 102 upper plate, a first 103 lower rod, a first 104 lower plate, a second 105 upper inclined surface, a fourth 106 upper inclined surface, a 2 rim ejecting mechanism, a second 201 upper rod, a second 202 upper plate, a second 203 lower rod, a second 204 lower plate, a second 205 lower inclined surface, a fourth 206 lower inclined surface, a 3 driving mechanism, a first 301 air cylinder, a second 302 air cylinder, a third 303 air cylinder, a fourth 304 air cylinder, a 4 upper die, a fourth 401 through hole, a first 402 upper groove, a first 403 upper inclined surface, a second 404 upper inclined surface, a third 405 upper inclined surface, a third 501 through hole, a fifth 502 through hole, a first 503 lower groove, a first 504 lower inclined surface, a second 505 lower inclined surface, a third 506 lower inclined surface, a first 6 core shaft, a first 601 through hole, a second 7 core shaft, a second 701 through hole, a second 8 resetting mechanism, a first 801 upper elastic piece, a first 802 upper pressing plate 803, a second upper elastic piece, a second 804 upper pressing plate, a first 805 lower elastic piece 806, a first pressing plate, a first, positioning groove I at 809, positioning groove II at 810, and lengthening bar at 9.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Example one

As shown in fig. 1 and 2, an ejection mechanism of centrifugal casting machine, including wheel hub liftout mechanism 1, rim liftout mechanism 2, actuating mechanism 3, wheel hub liftout mechanism 1 is arranged in carrying out the liftout to last mould 4 and the wheel hub department of the nylon wheel after the shaping in lower mould 5, rim liftout mechanism 2 is arranged in carrying out the liftout to the wheel rim department of the nylon wheel after the shaping in last mould 4 and lower mould 5, actuating mechanism 3 is used for driving wheel hub liftout mechanism 1, rim liftout mechanism 2 carries out the liftout, through carrying out the liftout simultaneously to nylon wheel hub and wheel rim department, can be fast and stable carry out drawing of patterns operation to the nylon wheel.

Specifically, as shown in fig. 2, the hub ejecting mechanism 1 comprises a first upper rod 101, a first upper plate 102, a first lower rod 103 and a first lower plate 104, a first through hole 601 is formed in a first mandrel 6 which drives an upper die 4 to rotate along a rotation axis, the first upper rod 101 is arranged in the first through hole 601 in a sliding manner along a vertical direction, the lower end of the first upper rod 101 penetrates through the first mandrel 6 and extends into the upper die 4 and is connected with the first upper plate 102, and the first upper plate 102 is arranged in a cavity of the upper die 4 for hub forming; the mandrel II 7 driving the lower die 5 to rotate is provided with a through hole II 701 along a rotation axis, the lower rod I103 is arranged in the through hole II 701 along the vertical direction, the axis of the lower rod I103 is overlapped with the axis of the through hole II 701, the upper end of the lower rod I103 penetrates through a through hole III 501 formed in the lower die 5 along the rotation axis and extends into the lower die 5, the upper end of the lower rod I103 is connected with a lower plate I104, and the lower plate I104 is arranged in a cavity of the lower die 5 for hub forming. The first upper plate 102 is driven by the first upper rod 101 to move towards the inside of the upper die 4, and the second lower plate 104 is driven by the first lower rod 103 to move towards the inside of the lower die 5, so that the hub of the nylon wheel in the die is ejected.

Specifically, as shown in fig. 3, the rim liftout mechanism 2 includes a second upper rod 201, a second upper plate 202, a second lower rod 203, and a second lower plate 204, where there are a plurality of (at least two) upper rods 201, the second upper rod 201 is disposed above the upper die 4 along the vertical direction, the second upper rods 201 are uniformly distributed on a circumference with the axis of the first through hole 601 as the center line, the second upper rod 201 is slidably disposed in a fourth through hole 401 correspondingly formed in the upper die 4, the lower end of the second upper rod 201 extends into the upper die 4 and is connected to the second upper plate 202, and the second upper plate 202 is disposed in a cavity formed by the rim of the upper die 4; the second lower rods 203 are provided with a plurality of (at least two) lower rods 203, the second lower rods 203 are arranged below the lower die 5 along the vertical direction, the second lower rods 203 are uniformly distributed on the circumference with the axis of the second through hole 701 as the center line, the second lower rods 203 are slidably arranged in the fifth through holes 502 correspondingly formed in the lower die 5, the upper ends of the second lower rods 203 extend into the lower die 5 and are connected with the second lower plates 204, and the second lower plates 204 are arranged in a cavity formed by a hub of the lower die 5. And driving the second upper plate 202 to move towards the inside of the upper die 4 through the second upper rod 201, and driving the second lower plate 204 to move towards the inside of the lower die 5 through the second lower rod 203, so that the rim of the nylon wheel in the die is ejected.

Specifically, as shown in fig. 2 and 3, an upper groove i 402 for placing the upper plate i 102 is formed at the cavity bottom of the cavity for forming the hub of the upper die 4, an upper inclined surface i 403 is formed on the side wall of the upper groove i 402, the upper inclined surface i 403 makes the upper groove i 402 a conical groove, the large end of the conical groove is located at one side close to the lower die 5, the outer side surface of the upper plate i 102 is an upper inclined surface ii 105 matched with the upper inclined surface i 403, and the raw material cannot leak between the upper plate i 102 and the cavity for forming the hub of the upper die 4 after being injected into the die through the matching of the upper inclined surface i 403 and the upper inclined surface ii 105; an upper groove II 404 for placing an upper plate II 202 is formed in the cavity bottom of the cavity formed by the rim of the upper die 4, an upper inclined surface III 405 is formed in the side wall of the upper groove II 404, the upper inclined surface III 405 enables the upper groove II 404 to be a conical groove, the large end of the conical groove is positioned on one side close to the lower die 5, the outer side surface of the upper plate II 202 is an upper inclined surface IV 106 matched with the upper inclined surface III 405, and raw materials cannot leak between the upper top plate II and the cavity formed by the rim of the upper die 4 after being injected into the die through the matching of the upper inclined surface III 405 and the upper inclined surface IV 106; the bottom of a cavity of a die cavity for forming the hub of the lower die 5 is provided with a first lower groove 503 for placing a first lower plate 104, the side wall of the first lower groove 503 is provided with a first lower inclined surface 504, the first lower inclined surface 504 enables the first lower groove 503 to be a conical groove, the large end of the conical groove is positioned at one side close to the upper die 4, the outer side surface of the first lower plate 104 is a second lower inclined surface 205 matched with the first lower inclined surface 504, and raw materials cannot leak between a first lower top plate and the die cavity for forming the hub of the lower die 5 after being injected into the die through the matching of the first lower inclined surface 504 and the second lower inclined surface 205; the bottom of the cavity of the lower die 5 for the rim molding is provided with a second lower groove 505 for placing a second lower plate 204, the side wall of the second lower groove 505 is provided with a third lower inclined surface 506, the third lower inclined surface 506 enables the second lower groove 505 to be a tapered groove, the large end of the tapered groove is positioned at one side close to the upper die 4, the outer side surface of the second lower plate 204 is a fourth lower inclined surface 206 matched with the third lower inclined surface 506, and the raw materials cannot leak between the second lower top plate and the cavity of the rim molding of the lower die 5 after being injected into the die through the matching of the third lower inclined surface 506 and the fourth lower inclined surface 206. Through the arrangement, the sealing performance between the first upper plate 102, the second upper plate 202 and the upper die 4 is enhanced, and the sealing performance between the first lower plate 104, the second lower plate 204 and the lower die 5 is enhanced.

The driving mechanism 3 is installed on a machine body of the centrifugal casting machine, the driving mechanism 3 is provided with a movable end moving along the vertical direction, and the movable end is used for driving the first upper rod 101, the second upper rod 201, the first lower rod 103 and the second lower rod 203 to move vertically.

Specifically, as shown in fig. 1, the driving mechanism 3 is a plurality of cylinders, and the axes of the cylinders are arranged along the vertical direction; an air cylinder is arranged above the first upper rod 101, and a piston rod of the air cylinder is connected with the first upper rod 101; an air cylinder is arranged below the first lower rod 103, and a piston rod of the air cylinder is connected with the first lower rod 103; each second upper rod 201 is correspondingly provided with an air cylinder, the air cylinders corresponding to the second upper rods 201 are arranged above the second upper rods 201, and piston rods of the air cylinders are connected with the second upper rods 201; each second lower rod 203 is correspondingly provided with an air cylinder, the air cylinder corresponding to the second lower rod 203 is arranged below the second lower rod 203, and a piston rod of the air cylinder is connected with the second lower rod 203. Promote the upper boom 101 through the cylinder, upper boom two 201, lower boom one 103, lower boom two 203 moves along vertical direction, thereby realize upper boom 101, upper boom two 201 carries out liftout work to the wheel hub of the nylon wheel in the mould, also realized lower boom one 103, lower boom two 203 is to the rim liftout work of the nylon wheel in the mould, liftout when through wheel hub and rim, the homogeneity of nylon wheel drawing of patterns in-process atress has been guaranteed, the stability of nylon wheel motion has been improved, the nylon wheel drawing of patterns of being convenient for.

The driving mechanism 3 can adopt a hydraulic cylinder, an electric push rod, an electro-hydraulic push rod and other devices with linear driving functions besides the air cylinder.

Example two

As shown in fig. 4, an ejection mechanism of centrifugal casting machine, including wheel hub liftout mechanism 1, rim liftout mechanism 2, actuating mechanism 3, wheel hub liftout mechanism 1 is arranged in carrying out the liftout to last mould 4 and the wheel hub department of the nylon wheel after the shaping in lower mould 5, rim liftout mechanism 2 is arranged in carrying out the liftout to the wheel rim department of the nylon wheel after the shaping in last mould 4 and lower mould 5, actuating mechanism 3 is arranged in driving wheel hub liftout mechanism 1, rim liftout mechanism 2 carries out the liftout, through carrying out the liftout simultaneously to nylon wheel hub and wheel rim department, can be fast and stable carry out drawing of patterns operation to the nylon wheel.

Specifically, as shown in fig. 4, the hub ejecting mechanism 1 includes a first upper rod 101, a first upper plate 102, a first lower rod 103, and a first lower plate 104, a first through hole 601 is formed along a rotation axis of a first mandrel 6 for driving the upper mold 4 to rotate, the first upper rod 101 is slidably disposed in the first through hole 601 along a vertical direction, a lower end of the first upper rod 101 penetrates through the first mandrel 6 and extends into the upper mold 4 and is connected with the first upper plate 102, and the first upper plate 102 is disposed in a cavity of the upper mold 4 for hub molding; the mandrel II 7 driving the lower die 5 to rotate is provided with a through hole II 701 along a rotation axis, the lower rod I103 is arranged in the through hole II 701 along the vertical direction, the axis of the lower rod I103 is overlapped with the axis of the through hole II 701, the upper end of the lower rod I103 penetrates through a through hole III 501 formed in the lower die 5 along the rotation axis and extends into the lower die 5, the upper end of the lower rod I103 is connected with a lower plate I104, and the lower plate I104 is arranged in a cavity of the lower die 5 for hub forming. The first upper plate 102 is driven by the first upper rod 101 to move towards the inside of the upper die 4, and the second lower plate 104 is driven by the first lower rod 103 to move towards the inside of the lower die 5, so that the hub of the nylon wheel in the die is ejected.

Specifically, as shown in fig. 6 and 7, the rim liftout mechanism 2 includes a second upper rod 201, a second upper plate 202, a second lower rod 203, and a second lower plate 204, where there are a plurality of (at least two) upper rods 201, the second upper rod 201 is disposed above the upper die 4 along the vertical direction, the second upper rods 201 are uniformly distributed on a circumference with the axis of the first through hole 601 as the center line, the second upper rod 201 is slidably disposed in a fourth through hole 401 correspondingly formed in the upper die 4, the lower end of the second upper rod 201 extends into the upper die 4 and is connected with the second upper plate 202, and the second upper plate 202 is disposed in a cavity formed by the rim of the upper die 4; the second lower rods 203 are provided with a plurality of (at least two) lower rods 203, the second lower rods 203 are arranged below the lower die 5 along the vertical direction, the second lower rods 203 are uniformly distributed on the circumference with the axis of the second through hole 701 as the center line, the second lower rods 203 are slidably arranged in the fifth through holes 502 correspondingly formed in the lower die 5, the upper ends of the second lower rods 203 extend into the lower die 5 and are connected with the second lower plates 204, and the second lower plates 204 are arranged in a cavity formed by a hub of the lower die 5. And driving the second upper plate 202 to move towards the inside of the upper die 4 through the second upper rod 201, and driving the second lower plate 204 to move towards the inside of the lower die 5 through the second lower rod 203, so that the rim of the nylon wheel in the die is ejected.

Specifically, as shown in fig. 5, 6 and 7, an upper groove i 402 for placing the upper plate i 102 is formed at the cavity bottom of the cavity for forming the hub of the upper die 4, an upper inclined surface i 403 is formed on the side wall of the upper groove i 402, the upper inclined surface i 403 makes the upper groove i 402 a conical groove, the large end of the conical groove is located at one side close to the lower die 5, the outer side surface of the upper plate i 102 is an upper inclined surface ii 105 matched with the upper inclined surface i 403, and the raw material cannot leak between the upper plate i 102 and the cavity for forming the hub of the upper die 4 after being injected into the die through the matching of the upper inclined surface i 403 and the upper inclined surface ii 105; an upper groove II 404 for placing an upper plate II 202 is formed in the cavity bottom of the cavity formed by the rim of the upper die 4, an upper inclined surface III 405 is formed in the side wall of the upper groove II 404, the upper inclined surface III 405 enables the upper groove II 404 to be a conical groove, the large end of the conical groove is positioned on one side close to the lower die 5, the outer side surface of the upper plate II 202 is an upper inclined surface IV 106 matched with the upper inclined surface III 405, and raw materials cannot leak between the upper top plate II and the cavity formed by the rim of the upper die 4 after being injected into the die through the matching of the upper inclined surface III 405 and the upper inclined surface IV 106; the bottom of a cavity of a die cavity for forming the hub of the lower die 5 is provided with a first lower groove 503 for placing a first lower plate 104, the side wall of the first lower groove 503 is provided with a first lower inclined surface 504, the first lower inclined surface 504 enables the first lower groove 503 to be a conical groove, the large end of the conical groove is positioned at one side close to the upper die 4, the outer side surface of the first lower plate 104 is a second lower inclined surface 205 matched with the first lower inclined surface 504, and raw materials cannot leak between a first lower top plate and the die cavity for forming the hub of the lower die 5 after being injected into the die through the matching of the first lower inclined surface 504 and the second lower inclined surface 205; the bottom of the cavity of the lower die 5 for the rim molding is provided with a second lower groove 505 for placing a second lower plate 204, the side wall of the second lower groove 505 is provided with a third lower inclined surface 506, the third lower inclined surface 506 enables the second lower groove 505 to be a tapered groove, the large end of the tapered groove is positioned at one side close to the upper die 4, the outer side surface of the second lower plate 204 is a fourth lower inclined surface 206 matched with the third lower inclined surface 506, and the raw materials cannot leak between the second lower top plate and the cavity of the rim molding of the lower die 5 after being injected into the die through the matching of the third lower inclined surface 506 and the fourth lower inclined surface 206. Through the arrangement, the sealing performance between the first upper plate 102, the second upper plate 202 and the upper die 4 is enhanced, and the sealing performance between the first lower plate 104, the second lower plate 204 and the lower die 5 is enhanced.

The bottom of the upper groove II 404 can also be in a circular arc shape, the upper groove II 404 is provided with a plurality of grooves which are uniformly distributed on the same circumference taking the axis of the through hole I601 as the center line, the side wall of the upper groove II 404 is an inclined plane, the appearance of the upper plate II 202 is matched with that of the upper groove II 404, the periphery of the upper plate II 202 is an inclined plane correspondingly matched with that of the upper groove II 404, the through hole IV 401 is communicated with the upper groove II 404, and the lower end of the upper rod II 201 penetrates through the through hole IV 401 to be connected to the upper plate II 202; the groove bottom of the second lower groove 505 can also be in a circular arc shape, the second lower groove 505 is provided with a plurality of grooves which are uniformly distributed on the same circumference taking the axis of the second through hole 701 as a central line, the side wall of the second lower groove 505 is an inclined plane, the shape of the second lower plate 204 is matched with that of the second lower groove 505, the periphery of the second lower plate 204 is an inclined plane correspondingly matched with that of the second lower groove 505, the fifth through hole 502 is communicated with the second lower groove 505, and the upper end of the second lower rod 203 penetrates through the fifth through hole 502 to be connected to the second lower plate 204. The difference between the second arc-shaped upper groove 404 and the second arc-shaped lower groove 505 and the second cone-shaped upper groove 404 and the second cone-shaped lower groove 505 is that the arc-shaped upper groove 404 and the second cone-shaped lower groove 505 are larger in size and easier to machine relative to the cone, and the contact area between the second arc-shaped upper plate 202 and the second cone-shaped lower plate 204 and the nylon wheel is larger relative to the second cone-shaped upper plate 202 and the second cone-shaped lower plate 204, so that the pressure intensity is smaller under the condition that the pressure.

As shown in fig. 5, the material ejecting mechanism of the centrifugal casting machine further includes a resetting mechanism 8, and after the driving mechanism 3 drives the first upper rod 101, the second upper rod 201, the first lower rod 103 and the second lower rod 203 to move towards the upper die 4 and the lower die 5, respectively, the resetting mechanism 8 is used for resetting the first upper rod 101, the second upper rod 201, the first lower rod 103 and the second lower rod 203.

Specifically, as shown in fig. 4, 5, 6, and 7, the reset mechanism 8 includes a first upper elastic member 801, a first upper pressing plate 802, a second upper elastic member 803, a second upper pressing plate 804, a first lower elastic member 805, a first lower pressing plate 806, a second lower elastic member 807, and a second lower pressing plate 808; the first upper elastic element 801, the second upper elastic element 803, the first lower elastic element 805 and the second lower elastic element 807 are all cylindrical compression springs; the upper pressure plate I802 is arranged above the mandrel I6 and connected to the upper end of the upper rod I101, the upper elastic piece I801 is arranged between the upper pressure plate I802 and the upper end face of the mandrel I6, the mandrel I6 and the upper die 4 are fixedly connected together, namely the upper elastic piece I801 is indirectly arranged between the upper die 4 and the upper pressure plate I802, the upper elastic piece I801 is sleeved on the outer side of the upper rod I101, and the upper pressure plate I802 is pushed to move upwards through the elastic force of the upper elastic piece I801, so that the upper inclined plane II 105 tightly presses the upper inclined plane I403; the second upper pressing plate 804 is mounted at the upper end of the second upper rod 201, the second upper elastic piece 803 is arranged between the second upper pressing plate 804 and the upper end face of the upper die 4, the second upper elastic piece 803 is sleeved outside the second upper rod 201, and the second upper pressing plate 804 is pushed to move upwards by the elastic force of the second upper elastic piece 803, so that the fourth upper inclined plane 106 tightly presses the third upper inclined plane 405; the first lower pressing plate 806 is arranged in the second through hole 701 and is installed at the lower end of the first lower rod 103, a first lower elastic piece 805 is arranged between the first lower pressing plate 806 and the lower end face of the lower die 5, the first lower elastic piece 805 is sleeved on the outer side of the first lower rod 103, and the first lower pressing plate 806 is pushed to move downwards through the elastic force of the first lower elastic piece 805, so that the second lower inclined surface 205 tightly presses the first lower inclined surface 504; the second lower pressing plate 808 is mounted at the lower end of the second lower rod 203, the second lower elastic piece 807 is arranged between the second lower pressing plate 808 and the lower die 5, the second lower elastic piece 807 is sleeved outside the second lower rod 203, and the second lower pressing plate 808 is pushed to move downwards by the elastic force of the second lower elastic piece 807, so that the fourth lower inclined surface 206 tightly presses the third lower inclined surface 506.

As shown in fig. 4, the driving mechanism 3 is mounted on the body of the centrifugal casting machine, and the driving mechanism 3 has a movable end moving in the vertical direction, and the movable end is used for driving the first upper rod 101, the second upper rod 201, the first lower rod 103 and the second lower rod 203 to move vertically. The driving mechanism 3 is a cylinder, and the cylinder is provided with a plurality of cylinders and all cylinder axes are arranged along the vertical direction.

Specifically, as shown in fig. 4, at least one air cylinder is arranged above the first upper rod 101, and is set as an air cylinder one 301, and a piston rod of the air cylinder one 301 is arranged right above the first upper press plate 802, so that when the piston rod of the air cylinder one 301 moves downwards, the piston rod can contact the first upper press plate 802 and push the first upper rod 101 to move downwards; when the number of the first cylinders 301 is one, the piston rods of the first cylinders 301 are collinear with the axis of the first through holes 601; when the number of the first cylinders 301 is more than one, the first cylinders 301 are uniformly distributed on the circumference taking the axis of the first through hole 601 as the center line.

Specifically, as shown in fig. 4, a cylinder is arranged below the first lower rod 103 and is set as a second cylinder 302, the second cylinder 302 is fixed to a body of the centrifugal casting machine, an axis of a piston rod of the second cylinder 302 is concentric with an axis of the second through hole 701, and the first lower rod 103 is pushed to move by the second cylinder 302, so that the material ejecting function of the first lower rod 104 is realized.

Specifically, as shown in fig. 4, the second upper rod 201 in this embodiment is connected to the second upper pressing plate 804, and the second lower pressing plate 808 is connected to the second lower pressing plate 808.

Specifically, as shown in fig. 4 and 6, at least two air cylinders connected with the body of the centrifugal casting machine are arranged above the second upper press plate 804, the three air cylinders 303 are arranged as third air cylinders 303, the third air cylinders 303 are uniformly distributed on the circumference with the axis of the first through hole 601 as the center line, the lower ends of the piston rods of the third upper press plate 804, corresponding to the third air cylinders 303, are provided with matched first positioning grooves 809, the piston rods of the third air cylinders 303 enter the first positioning grooves 809 and push the second upper press plate 804 to move downwards, and the function of ejecting the nylon wheel rim in the upper die 4 by the second upper press plate 202 is achieved.

Specifically, as shown in fig. 4 and 7, at least two air cylinders connected with the body of the centrifugal casting machine are arranged below the second lower pressing plate 808, the air cylinders are set as fourth air cylinders 304, the fourth air cylinders 304 are uniformly distributed on the circumference with the axis of the second through hole 701 as the center line, the upper ends of the piston rods of the second lower pressing plate 808, which correspond to the fourth air cylinders 304, are provided with second matched positioning grooves 810, and the piston rods of the fourth air cylinders 304 enter the second positioning grooves 810 and push the second lower pressing plate 808 to move upwards, so that the function of ejecting the nylon wheel rim in the lower die 5 by the second lower pressing plate 204 is realized.

Specifically, as shown in fig. 4, the piston rod of the second cylinder 302, the piston rod of the third cylinder 303, and the piston rod of the fourth cylinder 304 are vertically connected with an extension rod 9, and the volume of the corresponding cylinder can be reduced by arranging the extension rod 9.

The driving mechanism 3 is composed of a first air cylinder 301, a second air cylinder 302, a third air cylinder 303 and a fourth air cylinder 304, and the driving mechanism 3 can adopt devices with linear driving functions such as a hydraulic cylinder, an electric push rod, an electro-hydraulic push rod and the like besides the air cylinders.

By arranging the resetting mechanism 8, the movable end of the driving mechanism 3 pushes the first upper rod 101, the second upper rod 201, the first lower rod 103 and the second lower rod 203 to move towards the upper die 4 and the lower die 5 in the moving process, the movable end is not required to be connected with the first upper rod 101, the second upper rod 201, the first lower rod 103 and the second lower rod 203, the requirement on the accuracy of connection among the driving mechanism 3, the first upper rod 101, the second upper rod 201, the first lower rod 103 and the second lower rod 203 is lowered, and therefore after the driving mechanism drives the first upper rod 101, the second upper rod 201, the first lower rod 103 and the second lower rod 203 to eject materials, the first upper rod 101, the second upper rod 201, the first lower rod 103 and the second lower rod 203 are reset through the resetting mechanism 8.

The connection mode of the connection, the setting, the installation and the fixed connection can select a proper connection mode in the existing prior art, such as welding, riveting, threaded connection, bonding, pin connection, key connection, elastic deformation connection, buckle connection, interference connection and injection molding, so as to realize structural connection.

In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims (5)

1. The ejection mechanism of the centrifugal casting machine is characterized by comprising a hub ejection mechanism, a rim ejection mechanism and a driving mechanism;

the hub ejection mechanism comprises an upper rod I, an upper plate I, a lower rod I and a lower plate I, the upper rod I is vertically arranged above an upper die, the lower end of the upper rod I is arranged in a cavity formed by the upper die hub and connected with the upper plate I, the lower rod I is vertically arranged at the lower end of a lower die, and the upper end of the lower rod I is arranged in the cavity formed by the lower die hub and connected with the lower plate I;

the rim material ejecting mechanism comprises an upper rod II, an upper plate II, a lower rod II and a lower plate II, the upper rod II is vertically arranged above the upper die, and the lower end of the upper rod II is arranged in a cavity formed by the rim of the upper die and connected with the upper plate II; the lower rod II is vertically arranged below the lower die, and the upper end of the lower rod II is arranged in a cavity formed by the rim of the lower die and is connected with the upper plate II;

the driving mechanism is arranged on a machine body of the centrifugal casting machine and used for driving the first upper rod, the second upper rod, the first lower rod and the second lower rod to move vertically.

2. The ejection mechanism of a centrifugal casting machine according to claim 1, characterized in that a first upper groove for placing the first upper plate is formed at the cavity bottom of the cavity for molding the upper mold hub, a first upper inclined surface is formed on the side wall of the first upper groove, and a second upper inclined surface matched with the first upper inclined surface is formed on the outer side surface of the first upper plate;

an upper groove II for placing the upper plate II is formed in the cavity bottom of the die cavity formed by the upper die wheel rim, an upper inclined plane III is formed in the side wall of the upper groove II, and an upper inclined plane IV matched with the upper inclined plane III is formed in the outer side surface of the upper plate II;

a first lower groove for placing the first lower plate is formed in the cavity bottom of the mold cavity for molding the lower mold hub, a first lower inclined plane is formed in the side wall of the first lower groove, and a second lower inclined plane matched with the first lower inclined plane is formed on the outer side surface of the first lower plate;

the bottom of the cavity of the die cavity for forming the lower die wheel rim is provided with a second lower groove for placing the second lower plate, the side wall of the second lower groove is provided with a third lower inclined surface, and the outer side surface of the second lower plate is a fourth lower inclined surface matched with the third lower inclined surface.

3. The ejector mechanism of a centrifugal casting machine according to claim 1, further comprising a reset mechanism for resetting the first upper rod, the second upper rod, the first lower rod and the second lower rod after the driving mechanism drives the first upper rod, the second upper rod, the first lower rod and the second lower rod to move towards the upper mold and the lower mold.

4. The ejection mechanism of a centrifugal casting machine according to claim 3, wherein the reset mechanism comprises a first upper elastic member, a first upper pressing plate, a second upper elastic member, a second upper pressing plate, a first lower elastic member, a first lower pressing plate, a second lower elastic member and a second lower pressing plate;

the upper pressure plate I is arranged at the upper end of the upper rod I, and the upper elastic piece I is arranged between the upper pressure plate I and the upper die;

the upper pressing plate II is arranged at the upper end of the upper rod II, and the upper elastic piece II is arranged between the upper pressing plate II and the upper die;

the lower pressing plate I is arranged at the lower end of the lower rod I, and the lower elastic piece I is arranged between the lower pressing plate I and the lower die;

the lower pressing plate II is installed at the lower end of the lower rod II, and the lower elastic piece II is arranged between the lower pressing plate II and the lower die.

5. The ejector mechanism of a centrifugal casting machine according to claim 4, wherein the first upper elastic member, the second upper elastic member, the first lower elastic member, and the second lower elastic member are cylindrical compression springs.

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