CN210523815U

CN210523815U - Air flue sand core pressing mechanism

Info

Publication number: CN210523815U
Application number: CN201921405152.4U
Authority: CN
Inventors: 邓中新
Original assignee: CHONGQING HONGQI CYLINDER HEAD MANUFACTURING CO LTD
Current assignee: CHONGQING HONGQI CYLINDER HEAD MANUFACTURING CO LTD
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-05-15
Anticipated expiration: 2029-08-27

Abstract

The utility model discloses an air flue psammitolite hold-down mechanism, including install respectively two mounting substrate (5) on the both ends sliding seat about the tilting type casting machine, install in mounting substrate (5) go up and the piston rod upwards cylinder (8) that set up, with mounting substrate (5) relatively fixed's hinge supporting seat (7), insert the tilting type casting machine vertical downthehole and its bottom can compress tightly unsteady pressure head (2) on air flue psammitolite (1), with the upper end of unsteady pressure head (2) the upper end of hinge supporting seat (7) and the upper end of cylinder (8) is the articulated crank arm shape lever (4) all, hinge supporting seat (7) are located cylinder (8) with in the middle of unsteady pressure head (2). The air passage sand core pressing mechanism can ensure that the pressed sand core is not loosened and shifted due to various reasons in the whole pouring process, and casting scrap is reduced.

Description

Air flue sand core pressing mechanism

Technical Field

The utility model relates to a pouring technical field especially relates to an air flue psammitolite hold-down mechanism.

Background

Half metal half sand mould gravity casting, the product appearance is formed by the metal mould, and the die cavity is formed by the combination of laminating psammitolite stack of difference, and the basic stack order of psammitolite is from up doing down: the sand core comprises a water channel core, an air channel sand core, an oil chamber sand core, a cam sand core and a sprue core; because the number of superposed sand cores is large, gaps exist among the sand cores in a matching mode, and when the tilting casting machine rotates to a casting station, the sand cores can be loosened and displaced due to the flowing of aluminum liquid after the high-temperature aluminum liquid enters from a casting channel; when the tilting casting machine rotates, the casting is scrapped due to the phenomena of looseness and displacement caused by the vibration of the equipment and the change of the spatial position of the sand core.

In summary, how to effectively solve the problems of easy loosening, shifting and the like in the whole pouring process is a problem which needs to be solved urgently by the technical personnel in the field at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an air flue psammitolite hold-down mechanism, this air flue psammitolite hold-down mechanism can guarantee that the psammitolite that is compressed tightly can not take place to become flexible, shift because of various reasons in whole pouring process, reduces the foundry goods and scraps.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model provides an air flue psammitolite hold-down mechanism, including install respectively two mounting substrate on tilting casting machine's the both ends sliding seat of controlling, install in the cylinder that the piston rod upwards set up on the mounting substrate, with mounting substrate relatively fixed's hinge supporting seat, insert tilting casting machine vertical downthehole and its bottom can compress tightly the pressure head of floating on the air flue psammitolite, with the upper end of the pressure head of floating hinge supporting seat and the upper end of cylinder is the articulated arm-shaped lever that curves all, the hinge supporting seat is located the cylinder with in the middle of the pressure head of floating.

Preferably, a pipe coupling plate is fixed to the mounting substrate, the pipe coupling plate has an internal threaded hole, and the lower portion of the hinge support base has an external thread engaged with the internal threaded hole.

Preferably, the connecting part of the hinge supporting seat and the crank arm-shaped lever is a U-shaped opening, and the crank arm-shaped lever is placed in the U-shaped opening.

Preferably, the upper end of the floating pressure head and the upper end of the hinge support seat are connected with the crank arm-shaped lever through a connecting pin shaft.

Preferably, the device further comprises a support screw, the lower end of the support screw is connected to a threaded hole of a piston rod of the air cylinder, and the upper end of the support screw is connected with the crank arm-shaped lever through a connecting pin shaft.

Preferably, the crank-shaped lever comprises a lower cross bar connected with the floating pressure head, an upper cross bar connected with the hinge support seat and the cylinder, and an inclined rod connected with the lower cross bar and the upper cross bar.

Preferably, the cylinder is a thin buffer cylinder.

Preferably, a compression spring is arranged in the floating pressure head.

The utility model provides an air flue psammitolite hold-down mechanism quantity is two sets of, installs respectively on tilting casting machine's the both ends sliding seat of controlling. Air flue psammitolite hold-down mechanism includes mounting substrate, cylinder, hinge supporting seat, pressure head and the crank arm shape lever of floating, and mounting substrate installs on tilting casting machine's both ends sliding seat about, and the cylinder body of cylinder is installed on mounting substrate, specifically can be through the fix with screw, and is fixed firm, easily dismantles. The piston rod of cylinder upwards sets up, and the piston rod can stretch out and draw back from top to bottom. The hinge support base is relatively fixed with the installation substrate, namely the hinge support base is installed on the installation substrate. The tilting casting machine is provided with a vertical hole, an air passage sand core is arranged below the vertical hole, the floating pressure head is inserted into the vertical hole, and the bottom end of the floating pressure head can be tightly pressed on the air passage sand core. The crank arm-shaped lever is hinged to the upper end of the floating pressure head, the upper end of the hinge supporting seat and the upper end of the air cylinder, the hinge supporting seat is located between the air cylinder and the floating pressure head and serves as a fulcrum, and lever pressing mechanisms are formed at two ends of the hinge supporting seat. When the piston rod extends out under the action of compressed air of the cylinder, the floating pressure head descends through the movement of the lever pressing mechanism, and the floating pressure head presses the air passage sand core downwards to form a pneumatic lever type sand core pressing device; when the piston rod of the cylinder descends, the floating pressure head ascends to loosen the air channel sand core.

The utility model provides an air flue psammitolite hold-down mechanism installs in the tilting casting machine frame, can erect at random when the pouring and vert, compresses tightly the air flue psammitolite through the cylinder, crank arm shape lever, hinge supporting seat and unsteady pressure head, guarantees that the psammitolite that is compressed tightly can not take place to become flexible, shift because of various reasons at whole pouring process, reduces the foundry goods and scraps.

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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of an air passage sand core pressing mechanism provided in one embodiment of the present invention.

The drawings are numbered as follows:

the device comprises an air channel sand core 1, a floating pressure head 2, a connecting pin 3, a crank arm-shaped lever 4, a mounting base plate 5, a tubing connecting plate 6, a hinge supporting seat 7, an air cylinder 8 and a supporting screw 9.

Detailed Description

The core of the utility model is to provide a 1 hold-down mechanism of air flue psammitolite, this 1 hold-down mechanism of air flue psammitolite can guarantee that the psammitolite that is compressed tightly can not take place to become flexible, shift because of various reasons in whole pouring process, reduces the foundry goods and scraps.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an airway core 1 pressing mechanism according to an embodiment of the present invention.

In a specific embodiment, the utility model provides a 1 hold-down mechanism of air flue psammitolite, including installing two mounting substrate 5 on the both ends sliding seat about the tilting type casting machine respectively, install on mounting substrate 5 and the cylinder 8 that the piston rod upwards set up, with 5 relatively fixed hinge supporting seat 7 of mounting substrate, insert the vertical downthehole unsteady pressure head 2 that just its bottom can compress tightly on air flue psammitolite 1 of tilting type casting machine, with the upper end of unsteady pressure head 2, the upper end of hinge supporting seat 7 and the equal articulated crank arm shape lever 4 in upper end of cylinder 8, hinge supporting seat 7 is located cylinder 8 and unsteady pressure head 2 centre.

In the structure, the number of the air passage sand core 1 pressing mechanisms is two, and the pressing mechanisms are respectively installed on the left and right sliding seats of the tilting casting machine. The air flue sand core 1 pressing mechanism comprises a mounting substrate 5, an air cylinder 8, a hinge supporting seat 7, a floating pressure head 2 and a crank arm-shaped lever 4, wherein the mounting substrate 5 is mounted on left and right sliding seats of the tilting casting machine, a cylinder body of the air cylinder 8 is mounted on the mounting substrate 5, and the air flue sand core 1 pressing mechanism can be fixed firmly and is easy to detach through screws. The piston rod of the cylinder 8 is arranged upwards and can stretch up and down.

The hinge support 7 is fixed relative to the mounting substrate 5, that is, the hinge support 7 is mounted on the mounting substrate 5. The tilting casting machine is provided with a vertical hole, an air flue sand core 1 is arranged below the vertical hole, a floating pressure head 2 is inserted into the vertical hole, and the bottom end of the floating pressure head 2 can be tightly pressed on the air flue sand core 1.

The upper end of the floating pressure head 2, the upper end of the hinge supporting seat 7 and the upper end of the air cylinder 8 are hinged to the crank arm-shaped lever 4, the hinge supporting seat 7 is located between the air cylinder 8 and the floating pressure head 2, the hinge supporting seat 7 is a fulcrum, and lever pressing mechanisms are formed at two ends of the hinge supporting seat 7. When the piston rod extends out under the action of compressed air of the air cylinder 8, the floating pressure head 2 descends through the movement of the lever pressing mechanism, and the floating pressure head 2 presses the air passage sand core 1 downwards to form a pneumatic lever type sand core pressing device; when the piston rod of the air cylinder 8 descends, the floating pressure head 2 ascends to loosen the air channel sand core 1.

The utility model provides an air flue psammitolite 1 hold-down mechanism installs in the tilting casting machine frame, can erect at random when pouring and vert, compresses tightly air flue psammitolite 1 through cylinder 8, crank arm shape lever 4, hinge supporting seat 7 and unsteady pressure head 2, guarantees that the psammitolite that is compressed tightly can not take place to become flexible, shift because of various reasons at whole pouring process, reduces the foundry goods and scraps.

In addition to the above embodiments, the pipe coupling plate 6 is fixed to the mounting substrate 5 and can be fixed by screws. The pipe connecting plate 6 is provided with an internal thread hole, the lower part of the hinge supporting seat 7 is provided with an external thread matched with the internal thread hole, and the lower part of the hinge supporting seat 7 is installed in the internal thread hole and is connected conveniently and detached easily through threads. Of course, the screw connection is only a preferred embodiment, and is not exclusive, and the hinge support base 7 may be directly welded to the pipe coupling plate 6. The distribution pipe connecting plate 6 is provided with a through hole, one side of the distribution pipe connecting plate is connected with a compressed air source, the other end of the distribution pipe connecting plate is connected with the air cylinder 8, compressed air enters the air cylinder 8 through the distribution pipe connecting plate 6 after coming out of the electromagnetic valve, the section of the through hole replaces a pipeline to convey compressed air, and damage to the pipeline is reduced.

The utility model provides a 1 hold-down mechanism of air flue psammitolite, under the unchangeable condition of other parts, hinge supporting seat 7 is U type mouth with the connecting portion of cranking arm shape lever 4, and crank arm shape lever 4 is put in U type mouth, and U type mouth has the supporting role to cranking arm shape lever 4, makes things convenient for the connection location. Through holes are formed in the end faces of the crank arm-shaped lever 4 and the U-shaped opening in a penetrating mode, the hinge pin shaft 3 is connected in the through holes, and the hinge connection of the hinge support seat 7 and the crank arm-shaped lever 4 is achieved.

Further optimize above-mentioned technical scheme, the upper end of pressure head 2 that floats all is connected through coupling pin axle 3 with crank arm shape lever 4, and it is convenient to connect, rotates smoothly.

The utility model provides a 1 hold-down mechanism of air flue psammitolite should not be restricted to this kind of situation, under the unchangeable condition of other parts, still includes supporting screw 9, and supporting screw 9's lower extreme is connected in the screw hole of the piston rod of cylinder 8, fixes supporting screw 9 and cylinder 8's piston rod. The upper end of the supporting screw 9 can be a connecting sheet, a connecting hole is formed in the connecting position of the connecting sheet and the crank arm-shaped lever 4, the upper end of the supporting screw 9 is connected with the crank arm-shaped lever 4 through the connecting pin shaft 3, and connection is convenient.

In another more reliable embodiment, on the basis of any one of the above embodiments, the crank-shaped lever 4 includes a lower cross bar, an upper cross bar and a diagonal bar, the lower cross bar is connected to the floating ram 2, the upper cross bar is connected to the hinge support 7 and the cylinder 8, the diagonal bar connects the lower cross bar and the upper cross bar, and the lower cross bar and the upper cross bar are easily connected to the floating ram 2, the hinge support 7 and the cylinder 8 at different heights. The length of the specific lower cross rod, the specific upper cross rod, the specific inclined rod and the specific inclined angle of the inclined rod can be determined according to the actual application condition.

On the basis of the above embodiments, the cylinder 8 is a thin buffer cylinder, which may be an unadjustable buffer cylinder 8, and a buffer device is provided to start decelerating when the piston approaches the stroke end to prevent impact and make the buffer effect unadjustable; the buffer device can also be an adjustable buffer cylinder 8, the speed reduction rate and the buffer effect of the buffer device can be adjusted, and the use is more flexible. Preferably, the thin buffer cylinder is controlled by the PLC of the tilting casting machine and enters the automatic working cycle of the casting machine without manual intervention, so that the labor intensity of an operator is reduced, and casting scrapping is reduced.

For the air passage sand core 1 pressing mechanism in each embodiment, a compression spring is arranged in the floating pressure head 2 to realize soft pressing, so that the air passage sand core 1 is not damaged by pressing.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

It is right above the utility model provides an air flue psammitolite 1 hold-down mechanism introduces in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides an air flue psammitolite hold-down mechanism, its characterized in that, including install respectively two mounting substrate (5) on tilting casting machine's the both ends sliding seat of controlling, install in mounting substrate (5) go up and the piston rod upwards cylinder (8) that set up, with mounting substrate (5) relatively fixed hinge supporting seat (7), insert tilting casting machine vertical downthehole and its bottom can compress tightly unsteady pressure head (2) on air flue psammitolite (1), with the upper end of unsteady pressure head (2) the upper end of hinge supporting seat (7) and the upper end of cylinder (8) is the articulated crank arm shape lever (4) all, hinge supporting seat (7) are located cylinder (8) with in the middle of unsteady pressure head (2).

2. The airway core pressing mechanism according to claim 1, wherein a pipe coupling plate (6) is fixed on the mounting base plate (5), the pipe coupling plate (6) is provided with an internal threaded hole, and the lower part of the hinge support base (7) is provided with an external thread matched with the internal threaded hole.

3. The airway sand core pressing mechanism as claimed in claim 1, wherein the connection part of the hinge support base (7) and the crank-shaped lever (4) is a U-shaped opening, and the crank-shaped lever (4) is placed in the U-shaped opening.

4. The airway sand core pressing mechanism as claimed in claim 1, wherein the upper end of the floating pressure head (2) and the upper end of the hinge support base (7) are connected with the crank-shaped lever (4) through a connecting pin shaft (3).

5. The airway sand core pressing mechanism according to claim 1, characterized by further comprising a support screw (9), wherein the lower end of the support screw (9) is connected in a threaded hole of a piston rod of the cylinder (8), and the upper end of the support screw (9) is connected with the crank-shaped lever (4) through a connecting pin shaft (3).

6. The airway sand core pressing mechanism as claimed in claim 1, wherein the crank-shaped lever (4) comprises a lower cross bar connected with the floating ram (2), an upper cross bar connected with the hinge support base (7) and the cylinder (8), and a diagonal bar connecting the lower cross bar and the upper cross bar.

7. The airway sand core pressing mechanism as claimed in claim 1, wherein the air cylinder (8) is a thin buffer air cylinder.

8. The airway sand core pressing mechanism as claimed in claim 1, wherein the floating pressure head (2) is internally provided with a compression spring.