CN116079032A

CN116079032A - Low-pressure casting furnace mounting structure

Info

Publication number: CN116079032A
Application number: CN202211599769.0A
Authority: CN
Inventors: 马正松; 马文青; 鈡如殿
Original assignee: Chuzhou Jinnuo Industrial Co ltd
Current assignee: Chuzhou Jinnuo Industrial Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-05-09
Anticipated expiration: 2042-12-12
Also published as: CN116079032B

Abstract

The utility model relates to the technical field of low-pressure casting, in particular to a low-pressure casting furnace mounting structure, which comprises a bottom plate arranged in a pit, wherein a mounting assembly for mounting a casting furnace is movably arranged on the bottom plate; the driving assembly is arranged on the bottom plate and is provided with a load state for pushing the installation assembly to horizontally move and a unloading state for not forming horizontal thrust with the installation assembly; the buffer component is arranged at the tail end of the motion stroke of the installation component, and the buffer component buffers the installation component after the driving component is converted from a loading state to an unloading state. In the process of conveying the casting furnace by pushing the mounting assembly through the driving assembly, the driving assembly is converted from a loading state to an unloading state in advance before the buffer assembly buffers the mounting assembly, namely the mounting assembly and the casting furnace cannot form horizontal acting force with the driving assembly in the buffer process, so that the situation that the driving assembly is damaged is avoided.

Description

Low-pressure casting furnace mounting structure

Technical Field

The utility model relates to the technical field of low-pressure casting, in particular to a low-pressure casting furnace mounting structure.

Background

The low-pressure casting is a casting method that molten metal is filled into a crucible, compressed dry air is introduced into the crucible after sealing, so that low pressure is caused above the molten metal, and the molten metal rises from a liquid lifting pipe to fill a cavity. The low-pressure casting machine comprises a casting furnace, a crucible arranged in the casting furnace and a mounting frame for supporting the casting furnace. The casting furnace is arranged in the pit and is provided with two stations, namely a liquid injection station and a liquid lifting station, when the casting furnace is positioned at the liquid injection station, external molten metal is injected into the crucible, and when the casting furnace is positioned at the liquid lifting station, the molten metal in the crucible enters the cavity under the action of pressure.

The casting furnace is switched between the liquid injection station and the liquid lifting station in a traditional mode, and the traditional mode is manually pushed, but the mode is time-consuming and labor-consuming. The Chinese patent with publication number of CN208303845U discloses a low-pressure casting machine with a movable furnace body, wherein a pit is arranged under the ground, at least two stations are arranged in the pit, a continuous track is arranged at the bottom of each station, a heat preservation furnace is arranged at any station, wheels are arranged at the bottom of the heat preservation furnace, and the wheels are in rolling contact on the track; a thrust hydraulic cylinder is arranged outside the track, and the end part of a piston rod of the thrust hydraulic cylinder is connected with a heat preservation furnace at a corresponding position; one station in the pit is provided with rectangular upright posts, a low-pressure casting machine is arranged on the upright posts, and the chassis of the low-pressure casting machine corresponds to the position of the holding furnace.

In the prior art including the above patent, the casting furnace is mostly pushed and pulled by a hydraulic cylinder to realize the conversion of different stations of the casting furnace. When the casting furnace moves from the liquid injection station to the liquid lifting station, molten metal is stored in the casting furnace, and when the casting furnace moves to a static process too fast, the molten metal overflows due to inertia force, so that a buffer device is arranged in a pit to buffer the casting furnace, the casting furnace is stably and slowly static, and the molten metal is prevented from overflowing. In the actual processing process, the casting furnace slowly stands still under the action of the buffer mechanism, and the moving speed of the hydraulic cylinder expansion section is forced to be matched with the speed of the casting furnace due to the large inertia of the casting furnace, but the moving speed of the casting furnace cannot be accurately known in the actual operation, so that the moving speed of the hydraulic cylinder expansion section is difficult to be accurately matched with the moving speed of the hydraulic cylinder expansion section; namely, when the casting furnace moves faster than the hydraulic cylinder telescopic section, a tensile force is formed on the hydraulic cylinder telescopic section, and when the casting furnace moves slower than the hydraulic cylinder telescopic section, a thrust force is formed on the hydraulic cylinder telescopic section; the casting furnace filled with molten metal has large self weight, can form a large load on the hydraulic cylinder, and is easy to damage under the long-term frequent action.

Disclosure of Invention

The utility model aims to provide a low-pressure casting furnace mounting structure which solves the defects in the prior art.

In order to achieve the above object, the present utility model provides the following technical solutions: the low-pressure casting furnace mounting structure comprises a bottom plate which is arranged in a pit, wherein a mounting assembly for mounting a casting furnace is movably arranged on the bottom plate;

the driving assembly is arranged on the bottom plate and is provided with a load state for pushing the installation assembly to horizontally move and a unloading state for not forming horizontal thrust with the installation assembly;

the buffer component is arranged at the tail end of the motion stroke of the installation component, and the buffer component buffers the installation component after the driving component is converted from a loading state to an unloading state.

As a preferable technical scheme of the utility model, the mounting assembly comprises a translation seat, the driving assembly comprises a sliding block sliding along the displacement direction of the mounting assembly, and a push plate for pushing the translation seat is movably arranged on the sliding block.

As a preferable technical scheme of the utility model, a rotating shaft is fixedly arranged on the push plate, the rotating shaft is in running fit with the sliding block through a torsion spring, and a limiting unit for limiting the push plate is arranged on the sliding block.

As a preferable technical scheme of the utility model, the limiting unit comprises two limiting plates which are vertically and slidably arranged on the sliding block, the two limiting plates are arranged on two sides of the push plate, and the limiting plates are in a limiting state for limiting the push plate and a separating state for separating the push plate.

As a preferable technical scheme of the utility model, a bidirectional elastic telescopic rod is hinged between the two limiting plates, and the middle section of the bidirectional elastic telescopic rod is rotatably arranged on the sliding block; the driving assembly further comprises a control unit for controlling the state of the limiting plate.

As a preferable technical scheme of the utility model, the buffer assembly comprises a telescopic plate which is horizontally and fixedly arranged above the bottom plate and is level with the translation seat, an end plate is fixedly arranged at the end part of a telescopic section of the telescopic plate, the buffer plate is fixedly arranged on the end plate, and the buffer assembly further comprises a speed reduction unit for reducing the speed of the buffer plate.

As a preferable technical scheme of the utility model, the surface of the buffer plate is wavy; the speed reducing unit comprises a guide sleeve fixedly arranged above the bottom plate, a speed reducing block is slidably arranged on the guide sleeve, and a speed reducing spring is connected between the speed reducing block and the guide sleeve; the end face of the deceleration block facing the buffer plate is attached to the buffer plate.

As an optimized technical scheme of the utility model, a positioning groove is formed on the translation seat, an oil cylinder communicated with the inside of the expansion plate is fixedly arranged on the bottom plate, a piston plate is slidably arranged in the oil cylinder, a reset spring is connected between the piston plate and the inner wall of the oil cylinder, and a positioning unit which extends to the outside of the oil cylinder and is matched with the positioning groove is arranged on the piston plate.

As a preferable technical scheme of the utility model, the mounting assembly further comprises a release plate capable of releasing the matching state of the positioning unit and the positioning groove, and the release plate is slidably mounted in the positioning groove; the mounting assembly further includes an adjustment unit for adjusting the position of the release plate.

As a preferable technical scheme of the utility model, the positioning unit comprises an elastic telescopic rod fixedly arranged on the piston plate, and a positioning plate matched with the positioning groove is fixedly arranged at the end part of the telescopic section of the elastic telescopic rod.

In the technical scheme, in the low-pressure casting furnace mounting structure provided by the utility model, the driving assembly is converted from the loading state into the unloading state in advance before the buffer assembly buffers the mounting assembly in the process of pushing the mounting assembly to convey the casting furnace by the driving assembly, namely, the mounting assembly and the casting furnace cannot form horizontal acting force with the driving assembly in the buffer process, so that the situation that the driving assembly is damaged is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic view showing a first perspective structure of a low-pressure casting furnace mounting structure according to an embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of FIG. 1 at A;

FIG. 3 is a schematic view of the internal structure of a slider according to an embodiment of the present utility model;

FIG. 4 is an enlarged schematic view at B in FIG. 1;

FIG. 5 is a schematic view of a portion of a buffer assembly according to an embodiment of the present utility model;

FIG. 6 is a schematic view showing a second perspective structure of a low-pressure casting furnace mounting structure according to an embodiment of the present utility model;

FIG. 7 is a schematic view illustrating an internal structure of a translation stage according to an embodiment of the present utility model;

FIG. 8 is a schematic view of an adjusting frame according to an embodiment of the present utility model;

FIG. 9 is a schematic view of a portion of a positioning unit according to an embodiment of the present utility model;

FIG. 10 is an enlarged schematic view of FIG. 1 at C;

fig. 11 is a schematic view of an internal structure of a positioning plate in a positioning slot according to an embodiment of the utility model.

Reference numerals illustrate:

1. a bottom plate; 2. a mounting assembly; 201. a translation seat; 202. a positioning groove; 203. a release plate; 204. an elastomeric support column; 205. a lifting plate; 206. a frame body; 207. lifting columns; 208. an adjusting rod; 209. an adjusting frame; 3. a drive assembly; 301. a slide block; 302. a push plate; 303. a rotating shaft; 304. a limiting plate; 305. a bidirectional elastic telescopic rod; 306. wedge blocks; 307. a slide plate; 308. a guide rod; 309. a telescopic spring; 310. a movable rack; 311. a gear; 312. a static rack; 4. a buffer assembly; 401. a telescoping plate; 402. an end plate; 403. a buffer plate; 404. a guide sleeve; 405. a deceleration block; 406. a deceleration spring; 407. an oil cylinder; 408. a piston plate; 409. an elastic telescopic rod; 410. a positioning plate; 411. a receiving groove; 412. a positioning rod; 413. a bearing ring; 414. a positioning spring; 415. a positioning ring; 416. a return spring; 5. a roller; 6. a track.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

Referring to fig. 1-11, the embodiment of the present utility model provides a technical solution: the low-pressure casting furnace mounting structure comprises a bottom plate 1 which is mounted in a pit, wherein a mounting assembly 2 for mounting a casting furnace is movably arranged on the bottom plate 1; the casting furnace can be driven to synchronously move in the moving process of the installation component 2, and the casting furnace is driven to be switched between the liquid injection station and the liquid lifting station through the installation component 2.

The driving component 3 is arranged on the bottom plate 1 and has a loading state for pushing the mounting component 2 to horizontally move and an unloading state for not forming horizontal thrust with the mounting component 2.

The driving assembly 3 applies horizontal pushing force to the mounting assembly 2 along the moving direction of the mounting assembly 2 under the load state, so as to push the mounting assembly 2 and the casting furnace to move; in the process that the mounting assembly 2 drives the casting furnace to perform station conversion, the driving assembly 3 is converted from an initial unloading state into a loading state, namely the driving assembly 3 does not apply horizontal thrust to the mounting assembly 2 at first, and then applies horizontal thrust to the mounting assembly 2 to push the mounting assembly 2 and the casting furnace to move; finally, the driving assembly 3 returns to the unloading state, namely, the driving assembly 3 does not apply the pushing force in the horizontal direction to the mounting assembly 2 finally; in summary, in the process of driving the casting furnace to perform the station conversion by the installation assembly 2, the state of the driving assembly 3 is the unloading state, the loading state and the unloading state.

Specifically, the driving component 3 can be two hydraulic cylinders respectively arranged at the tail end of the motion stroke of the installation component 2, the telescopic section of the hydraulic cylinder is not fixedly connected with the installation component 2 and the casting furnace, namely, the end part of the telescopic section of the hydraulic cylinder is not contacted with the installation component 2 firstly in the extending process of the hydraulic cylinder, then the hydraulic cylinder is attached to the installation component 2 and then pushes the installation component 2 and the casting furnace to move, and finally, the telescopic section of the hydraulic cylinder reaches the tail end of the stroke and is separated from the installation component 2, and the installation component 2 and the casting furnace continue to move under the inertia effect.

The buffer component 4 is arranged at the tail end of the motion stroke of the installation component 2, and after the driving component 3 is converted from a loading state to an unloading state, the buffer component 4 buffers the installation component 2.

In the initial unloading state of the driving assembly 3, the buffer assembly 4 does not play a role in buffering the mounting assembly 2, and in the process of converting the driving assembly 3 from the unloading state to the loading state, the buffer assembly 4 does not play a role in buffering the mounting assembly 2; after the driving assembly 3 returns to the unloading state from the loading state, the buffer assembly 4 plays a role in buffering the mounting assembly 2; that is, the speed reduction of the mounting assembly 2 completely depends on the buffer assembly 4, and in the process that the buffer assembly 4 applies horizontal acting force to the mounting assembly 2 to reduce the speed of the mounting assembly, the mounting assembly 2 and the driving assembly 3 cannot form horizontal push-pull.

Specifically, the buffer assembly 4 is a plurality of springs arranged at the end of the movement stroke of the mounting assembly 2, the springs are compressed after the mounting assembly 2 is contacted with the springs, and the springs buffer the mounting assembly 2 and the casting furnace.

As shown in fig. 1, 2 and 6, in one embodiment of the present utility model, the mounting assembly 2 includes a translation seat 201, a roller 5 is mounted on the translation seat 201, and a rail 6 matched with the roller is mounted on the base plate 1; the driving assembly 3 comprises a sliding block 301 sliding along the displacement direction of the mounting assembly 2, and the number of the sliding blocks 301 can be one or a plurality of sliding blocks 301, and in the embodiment, the number of the sliding blocks 301 is two; the slide 301 is driven by a conventional power driving mode, such as electric control, pneumatic control or hydraulic control, the slide 301 can reciprocate, and a push plate 302 for pushing the translation seat 201 is movably arranged on the slide 301.

Specifically, in the loaded state of the driving assembly 3, the sliding block 301 moves along the direction of the track 6 under the action of external driving force, the push plate 302 is engaged with the translation seat 201 and applies horizontal thrust along the direction of the track 6 to the translation seat 201, and the translation seat 201 and the roller 5 move synchronously with the sliding block 301 along the direction of the track 6; when the driving assembly 3 is converted from the loading state to the unloading state, the push plate 302 is displaced relative to the translation seat 201, the horizontal pushing force along the direction of the track 6 is not applied to the translation seat 201 any more, the sliding block 301 is not moved synchronously with the translation seat 201 any more, but moves to the other side of the translation seat 201 at a speed faster than that of the translation seat 201, and finally the sliding block 301 and the translation seat 201 reach the static state, and the casting furnace is kept static in the static state of the translation seat 201, so that the casting furnace can be subjected to a liquid injection process or a liquid lifting process.

The push plate 302 is in sliding fit or rotating fit with the slide block 301, and in either of the two fit modes, the push plate 302 has two states, namely, a state of applying horizontal thrust to the translation seat 201 and a state of not applying horizontal thrust to the translation seat 201; when the push plate 302 applies horizontal thrust to the translation seat 201, the driving assembly 3 is in a loading state, and when the push plate 302 does not apply horizontal thrust to the translation seat 201, the driving assembly 3 is in an unloading state; the state of the push plate 302 can be controlled by an electric push rod arranged on the slide block 301, which is not described in detail in the prior art.

As shown in fig. 2 and 3, in another embodiment of the present utility model, a rotating shaft 303 is fixedly installed on a push plate 302, the rotating shaft 303 is in rotation fit with a sliding block 301 through a torsion spring, and a limiting unit for limiting the push plate 302 is installed on the sliding block 301; in the process of driving the casting furnace to perform station conversion by the installation component 2, the state of the driving component 3 is an unloading state, a loading state and an unloading state; in the initial unloading state of the driving assembly 3, the push plate 302 is kept in a vertical state under the action of the torsion spring, and the push plate 302 is not contacted with the translation seat 201; after the driving assembly 3 is converted from an initial unloading state to a loading state, the push plate 302 is attached to the translation seat 201, and the limiting unit plays a limiting role on the push plate 302, so that the push plate 302 cannot turn over under the reaction force of the translation seat 201, and the push plate 302 pushes the translation seat 201 to move; when the driving assembly 3 returns to the unloading state from the loading state, the limit unit releases the limit on the push plate 302, the push plate 302 overturns under the reaction force of the translation seat 201, the rotating shaft 303 rotates, and the torsion spring deforms under the action of the rotating shaft 303; at this time, the pushing plate 302 no longer applies a pushing force to the translation seat 201, but moves faster than the translation seat 201 under the driving of the sliding block 301, the pushing plate 302 moves under the translation seat 201 in the tilted state after being turned over, the top of the pushing plate 302 is attached to the bottom surface of the translation seat 201, only a friction force exists between the pushing plate 302 and the bottom surface of the translation seat 201, and no pushing force exists between the pushing plate and the pushing plate; when the push plate 302 moves to the other side of the translation seat 201 under the driving of the sliding block 301, the push plate 302 is separated from the bottom surface of the translation seat 201, the torsion spring returns the rotating shaft 303 and the push plate 302 to turn over and reset, and the push plate 302 returns to the initial vertical state from the inclined state.

Specifically, the limiting unit comprises a clamping groove formed in the rotating shaft 303 and a clamping block mounted on the sliding block 301 and matched with the clamping groove, the clamping block is controlled by the electric push rod, and the position of the clamping block is controlled by the electric push rod to limit the rotating shaft 303 and the push plate 302, which is not described in detail in the prior art.

As shown in fig. 2 and 3, in another embodiment of the present utility model, the limit unit includes two limit plates 304 vertically slidably mounted on the slider 301, the two limit plates 304 being disposed at both sides of the push plate 302, the limit plates 304 having a limit state of limiting the push plate 302 and a separation state of separating from the push plate 302; the two limiting plates 304 can be of a split type structure or an integrated structure; when two limiting plates 304 are in an integrated structure, the limiting plates 304 can be switched between a limiting state and a separating state only by controlling the limiting plates 304 to lift through an electric push rod in the prior art.

When the two limiting plates 304 are in a split structure, as shown in fig. 3, the limiting plate 304 on the left side of the push plate 302 is in a limiting state, the surface of the limiting plate is attached to the push plate 302, and the top of the limiting plate 304 is located below the plane where the axis of the rotating shaft 303 is located, so that the push plate 302 can turn over towards one side; the limiting plate 304 on the right side of the push plate 302 is in a separated state; through the split design of the two limiting plates 304, one limiting plate 304 is always in a limiting state, so that the push plate 302 in the process of reversing and resetting from an inclined state is positioned through the cooperation of the limiting plate 304 in the limiting state and the torsion spring, and the push plate 302 can be ensured to return to an initial vertical state; under the condition of the integral structural design of the two limiting plates 304, the situation that the limiting plates 304 cannot limit the pushing plates 302 due to the fact that the pushing plates 302 cannot be accurately reset to the vertical state is avoided.

In the state of fig. 3, the slider 301 drives the limiting plate 304 and the push plate 302 to move from right to left, and the push plate 302 is attached to the translation seat 201 to push the translation seat 201 to move left; subsequently, the drive assembly 3 enters an unloading state, i.e., the left side limiting plate 304 descends and enters a separated state, and the right side limiting plate 304 ascends and enters a limiting state; the push plate 302 rotates clockwise under the reaction force of the translation seat 201, the rotating shaft 303 rotates synchronously, the torsion spring deforms, and the push plate 302 moves below the translation seat 201 under the drive of the sliding block 301; after the push plate 302 is separated from the translation seat 201 under the drive of the sliding block 301, the rotating shaft 303 and the push plate 302 are reversely reset by the acting force of the torsion spring until the push plate 302 is attached to the right limiting plate 304; the right limiting plate 304 keeps a limiting state, and under the condition that the left limiting plate 304 keeps a separating state, the sliding block 301 drives the limiting plate 304 and the pushing plate 302 to move from left to right, and the pushing plate 302 is attached to the translation seat 201 and then pushes the translation seat 201 to move right.

The two split type limiting plates 304 can be controlled in position by a single electric push rod, so that each limiting plate 304 is controlled to be switched between a separated state and a limiting state.

As shown in fig. 3, in another embodiment of the present utility model, a bidirectional elastic telescopic rod 305 is hinged between two limiting plates 304, and the middle section of the bidirectional elastic telescopic rod 305 is rotatably mounted on a sliding block 301; the drive assembly 3 further comprises a control unit for controlling the state of the limiting plate 304.

In fig. 3, the bi-directional elastic telescopic rod 305 is in a stable state with the left end high and the right end low, and at this time, the left limiting plate 304 and the right limiting plate 304 are kept in a stable state under the action of the bi-directional elastic telescopic rod 305; when the right limiting plate 304 is lifted by the upward pushing force, the bidirectional elastic telescopic rod 305 is driven to rotate anticlockwise, two ends of the bidirectional elastic telescopic rod 305 shrink, and the left limiting plate 304 moves downwards under the driving of the bidirectional elastic telescopic rod 305; when the bidirectional elastic telescopic rod 305 reaches a horizontal state, the bidirectional elastic telescopic rod 305 continues to rotate anticlockwise along with the rising of the limiting plate 304 on the right side under the action of external force, the two ends of the bidirectional elastic telescopic rod 305 recover to stretch, and finally the limiting plate 304 on the right side enters a limiting state, the limiting plate 304 on the left side enters a separation state, and the bidirectional elastic telescopic rod 305 enters a stable state with low left end and high right end; it should be noted that, under the stable state, the bi-directional elastic telescopic rod 305 cannot rotate under the gravity action of the limiting plate 304 due to the action of the internal elastic supporting force, and only when the vertical upward external force acts on the limiting plate 304 in the separated state, the bi-directional elastic telescopic rod 305 can rotate.

The control unit may be an electric push rod which is arranged on the slide block 301, and is used for controlling the lifting of the single limiting plate 304, i.e. controlling the state switching of the two limiting plates 304.

As shown in fig. 2 and fig. 6, in another embodiment of the present utility model, the control unit includes wedge blocks 306 which are the same in number and position as the limiting plates 304 and are in one-to-one correspondence, the inclined surfaces of the wedge blocks 306 face the corresponding limiting plates 304, and the bottom edges of the limiting plates 304 are arc-shaped, so that the wedge blocks 306 can push the limiting plates 304 to move upwards in the process of translating towards the limiting plates 304; a sliding plate 307 is fixedly arranged on each wedge block 306, a guide rod 308 penetrating through the sliding plate 307 is fixedly arranged on the sliding block 301 corresponding to each wedge block 306, and a telescopic spring 309 sleeved on the guide rod 308 is connected between the sliding plate 307 and the sliding block 301; a movable rack 310 is fixedly arranged at one end, far away from the corresponding limiting plate 304, of the wedge-shaped block 306, and a gear 311 meshed with the movable rack 310 is rotatably arranged at the position, corresponding to each movable rack 310, of the sliding block 301 through a gear rack; a static rack 312 meshed with the gear 311 is fixedly arranged on the bottom plate 1 at a position in the middle of the stroke of the mounting assembly 2.

Specifically, when the sliding block 301 moves, the guiding rod 308, the telescopic spring 309, the wedge block 306, the sliding plate 307, the movable rack 310 and the gear 311 are driven to move synchronously; when the gear 311 moves to a state of being meshed with the static rack 312, the static rack 312 drives the gear 311 to rotate, and the gear 311 drives the movable rack 310, the wedge block 306 and the slide plate 307 to move along the direction of the guide rod 308 in the rotating process of the gear 311; the wedge block 306 is attached to the limiting plate 304 in the separated state in the moving process and pushes the limiting plate 304 to ascend until the limiting plate 304 is converted into the limiting state; in the process, the sliding plate 307 and the telescopic spring 309 generate interaction force, and the telescopic spring 309 deforms; as the slider 301 continues to move, the gear 311 is disengaged from the static rack 312, and the extension spring 309 resets and generates a rebound force to reset the slide 307, the wedge block 306 and the movable rack 310, and the movable rack 310 drives the gear 311 to reset; through the structure, the state of the two limiting plates 304 can be automatically switched without adding an additional electric control element, namely the load state and the unloading state of the driving assembly 3 can be automatically switched.

It should be noted that, the gear 311 of the corresponding limit plate 304 is first engaged with the static rack 312 and then disengaged from the static rack 312, and in this process, the wedge block 306 of the corresponding limit plate 304 moves away from the limit plate 304, and then resets, so that the states of the two limit plates 304 are not affected.

In another embodiment of the present utility model, as shown in fig. 4 and 5, the buffer assembly 4 includes a telescopic plate 401 horizontally and fixedly installed above the base plate 1 and level with the translation seat 201, an end plate 402 is fixedly installed at the end of a telescopic section of the telescopic plate 401, a buffer plate 403 is fixedly installed on the end plate 402, and the buffer assembly 4 further includes a speed reduction unit for reducing the speed of the buffer plate 403.

Specifically, after the driving assembly 3 enters the unloading state from the loading state, the translation seat 201 is not subjected to external horizontal thrust any more, the translation seat 201 continues to move under the action of inertia force, and then the translation seat 201 is attached to the end plate 402 and pushes the end plate 402 to move, and the expansion plate 401 is compressed; in the process of compressing the expansion plate 401, the speed reducing unit reduces the speed of the buffer plate 403, so as to buffer the moving process of the end plate 402, namely, buffer the moving translation seat 201; the speed reducing unit is a friction plate controlled by an electric telescopic rod, and the friction between the friction plate and the buffer plate 403 is used for reducing the speed of the buffer plate 403; it should be noted that, in this embodiment, the resetting process of the expansion plate 401, the end plate 402 and the buffer plate 403 may be implemented by driving the end plate 402 to translate by an electric expansion rod disposed in the pit; an elastic member for resetting can be disposed in the expansion plate 401, and resetting of the end plate 402 and the buffer plate 403 can be achieved through deformation and resetting of the elastic member, which is not described in detail in the prior art.

In another embodiment of the present utility model, as shown in FIG. 5, the surface of the baffle 403 is wavy; the speed reducing unit comprises a guide sleeve 404 fixedly arranged above the bottom plate 1, a speed reducing block 405 is slidably arranged on the guide sleeve 404, and a speed reducing spring 406 is connected between the speed reducing block 405 and the guide sleeve 404; the end face of the deceleration block 405 facing the buffer plate 403 is attached to the buffer plate 403; the end surface of the deceleration block 405 facing the buffer plate 403 is composed of an arc portion located on the side close to the end plate 402 and an inclined portion located on the side far from the end plate 402.

Specifically, referring to fig. 5, the end plate 402 drives the buffer plate 403 to move from right to left under the pushing of the translation seat 201, in this process, the buffer plate 403 periodically pushes the deceleration block 405 to move toward the inner side of the guide sleeve 404, and the deceleration spring 406 periodically stretches out and draws back; when the buffer plate 403 pushes the buffer block 405 once, the buffer block 405 applies a reaction force to the buffer plate 403 and plays a role in blocking the buffer plate 403, and the reaction force applied to the buffer plate 403 by the buffer block 405 is the same each time, so that the buffer plate 403 continuously receives a uniform resistance action in the deceleration process, if the elastic piece resets the end plate 402, the reaction force of the elastic piece to the end plate 402 in the process of compressing the elastic piece by the end plate 402 is unbalanced, and the end plate 402 can be pushed to move rapidly in the resetting process of the elastic piece, so that molten metal in the casting furnace shakes; according to the embodiment, through the structure, the translation seat 201 can be slowly decelerated, and the condition that the molten metal in the casting furnace shakes back and forth in the deceleration process when the casting furnace is switched from a liquid injection station to a liquid lifting station is avoided; and ensures that the end plate 402 is not rapidly pushed out, and avoids the condition that molten metal in the initial stage of the stroke of the casting furnace shakes when the casting furnace is switched from a liquid injection station to a liquid lifting station.

Since the end surface of the deceleration block 405 facing the buffer plate 403 is formed of an arc-shaped portion and an inclined portion, the reaction force from the deceleration block 405 received when the buffer plate 403 in the state of fig. 5 moves from right to left is greater than the reaction force from the deceleration block 405 received when the buffer plate 403 moves from left to right; this is because the weight of the casting furnace is large when the furnace is full of molten metal, and a larger resistance is required to slow down the furnace, but after casting is completed, the total weight of the casting furnace is low, and the situation that the end plate 402 is rapidly pushed out can be avoided by only needing a smaller resistance, if the resistance provided by the speed reducing block 405 is still large at this time, the normal reset of the end plate 402 can be affected.

As shown in fig. 1, 6 and 9, in another embodiment of the present utility model, a positioning groove 202 is formed on a translation seat 201, an oil cylinder 407 is fixedly installed above a base plate 1 and is communicated with the inside of a telescopic plate 401, the end of the oil cylinder 407 extends to a position corresponding to the positioning groove 202 outside the translation seat 201, a piston plate 408 is slidably installed in the oil cylinder 407, a return spring 416 is connected between the piston plate 408 and the inner wall of the oil cylinder 407, and a positioning unit which extends to the outside of the oil cylinder 404 and is matched with the positioning groove 202 is installed on the piston plate 408.

Specifically, the end plate 402 drives the expansion plate 401 to shrink in the process of pushing and moving by the translation seat 201, and hydraulic oil in the oil cylinder 404 is extruded in the shrinkage process of the expansion plate 401; as shown in fig. 9, the hydraulic oil is pressurized to push the piston plate 408 to move toward the translation seat 201, and the return spring 416 is stretched; in the process, the positioning unit arranged on the piston plate 408 is matched with the positioning groove 202 to realize the positioning of the translation seat 201 in a deceleration state, thereby ensuring that the casting furnace is kept in a static state in a liquid lifting station; the buffer assembly 4 in this embodiment can not only achieve deceleration of the mounting assembly 2 and the casting furnace, but also achieve automatic positioning of the mounting assembly 2 and the casting furnace.

The positioning unit in this embodiment includes an elastic member mounted on the piston plate 408 and a positioning member mounted on the elastic member and adapted to the positioning slot 202, which is not described in detail in the prior art.

As shown in fig. 1, in another embodiment of the present utility model, the mounting assembly 2 further includes a release plate 203 capable of releasing the engagement state of the positioning unit with the positioning groove 202, and the release plate 203 is slidably mounted in the positioning groove 202; the mounting assembly 2 further comprises an adjustment unit for adjusting the position of the release plate 203.

Specifically, the adjusting unit is an electric telescopic rod installed in the translation seat 201, and the telescopic section of the electric telescopic rod is fixedly connected with the release plate 203, and when the release plate 203 is driven to move to the outer side of the positioning groove 202, the release plate 203 pushes the positioning piece out of the positioning groove 202, so that the positioning of the installation component 2 and the casting furnace by the positioning unit is relieved.

In another embodiment of the utility model, as shown in fig. 6, 7 and 8, the adjusting unit comprises a plurality of elastomeric support columns 204 vertically and fixedly mounted on the top surface of the translation seat 201, wherein lifting plates 205 are fixedly mounted on the tops of the plurality of elastomeric support columns 204, and a frame 206 for fixing the casting furnace is fixedly mounted on the top surface of the lifting plates 205; a lifting column 207 extending downwards into the translation seat 201 is vertically and fixedly arranged on the bottom surface of the lifting plate 205; an adjusting rod 208 is fixedly arranged on the end face of the release plate 203 facing the lifting column 207, and an adjusting frame 209 is hinged between the adjusting rod 208 and the lifting column 207.

Specifically, when no molten metal is present in the casting furnace, elastomeric support columns 204 are in an initial state, and the end surfaces of release plates 203 are flush with the notches of positioning grooves 202; when the casting furnace is filled with molten metal, the total weight of the casting furnace, the lifting plate 205 and the frame 206 is increased, the casting furnace, the lifting plate 205 and the frame 206 are integrally lowered, and the elastomeric support columns 204 are compressed; the lifting plate 205 drives the lifting column 207 to synchronously descend in the descending process, the lifting column 207 drives the adjusting frame 209 in the translation seat 201 to move when the lifting column 207 descends, the adjusting frame 209 drives the adjusting rod 208 to translate when moving, the adjusting rod 208 drives the release plate 203 to completely enter the positioning groove 202, a certain distance is reserved between the notch of the positioning groove 202 and the release plate 203, and a positioning piece in the buffer component positioning unit is allowed to enter the positioning groove 202, namely, the state shown in fig. 7; after the casting furnace enters the liquid lifting station, the molten metal in the casting furnace is continuously reduced, and the total weight of the casting furnace, the lifting plate 205 and the frame 206 is continuously reduced; the top of the casting furnace and the pouring opening are mutually propped together in the casting process, and the pouring opening is pressed by the sand mould and cannot move up and down, so that the casting furnace cannot move in the vertical direction in the casting process; after casting is completed, the sand mold and the pouring opening are removed, and the casting furnace is not subjected to upper pressure; the elastic support column 204 is reset, the casting furnace, the lifting plate 205 and the frame 206 are integrally lifted, the lifting plate 205 drives the lifting column 207 to synchronously lift in the lifting process, the lifting column 207 drives the adjusting frame 209 in the translation seat 201 to move when lifting, the adjusting frame 209 drives the adjusting rod 208 to translate when moving, the adjusting rod 208 drives the release plate 203 to move towards the outside of the positioning groove 202, and the positioning piece in the positioning unit is pushed out of the positioning groove 202 in the moving process of the release plate 203, so that the positioning of the installation assembly 2 and the casting furnace by the buffer assembly 4 is relieved.

The adjusting unit in the embodiment realizes automatic adjustment of the release plate 203 through total weight change of the casting furnace, and an electric control element is not needed to be additionally arranged for controlling the release plate 203.

As shown in fig. 9 and 10, in another embodiment of the present utility model, the positioning unit includes an elastic extension rod 409 fixedly installed on the piston plate 408, and a positioning plate 410 engaged with the positioning groove 202 is fixedly installed at an end of an extension section of the elastic extension rod 409.

Specifically, when the piston plate 408 drives the elastic expansion link 409 and the positioning plate 410 to move towards the translation seat 201 under the action of oil pressure, the positioning plate 410 is first attached to the translation seat 201, but because the positioning slot 202 has not moved to the position corresponding to the positioning plate 410, the elastic expansion link 409 contracts and tightly presses the positioning plate 410 against the side wall of the translation seat 201, and the positioning plate 410 and the translation seat 201 slide relatively; when the positioning groove 202 moves to a position corresponding to the positioning plate 410, the elastic telescopic rod 409 stretches and pushes the positioning plate 410 into the positioning groove 202 rapidly, so that the positioning of the translation seat 201 is realized; the elastic extension lever 409 is compressed again in the process that the release plate 203 pushes the positioning plate 410 out of the positioning groove 202.

It should be noted that, since the process of each deceleration buffering of the installation assembly 2 and the casting furnace is different, if the positioning plate 410 is controlled by the traditional electric method, it cannot be ensured that the positioning plate 410 can accurately enter the positioning slot 202 each time; by the structure provided in the present embodiment, however, the positioning of the mounting assembly 2 and the casting furnace can be achieved in the case where the cushioning and decelerating processes of the mounting assembly 2 and the casting furnace are different.

As shown in fig. 10 and 11, in another embodiment of the present utility model, a receiving slot 411 is formed in the positioning plate 410, and a positioning rod 412 penetrating the receiving slot 411 is slidably installed on the positioning plate 410 along the moving direction of the installation assembly 2; the positioning rod 412 is fixedly provided with a bearing ring 413, a positioning spring 414 is fixedly connected between the bearing ring 413 and the end face of the accommodating groove 411, and the inner wall of the accommodating groove 411 is fixedly provided with a positioning ring 415 for positioning the bearing ring 413.

Specifically, one end of the positioning rod 412 extends out of the positioning plate 410, the other end is flush with the surface of the positioning plate 410, and the total length of the positioning plate 410 and the positioning rod 412 is matched with the length of the positioning groove 202; the positioning plate 410 and the positioning rod 412 enter the positioning groove 202 synchronously, at this time, the translation seat 201 still has inertia, and the positioning unit has not yet performed a positioning function on the translation seat 201; as the translation seat 201 continues to move, the translation seat 201 drives the positioning rod 412 and the bearing ring 413 to move synchronously, and the positioning spring 414 is compressed; the positioning spring 414 continues to play a buffering role until the translation seat 201 is completely stationary, and finally the positioning spring 414 is reset, the bearing ring 413 and the positioning rod 412 are pushed, and the positioning rod 412 pushes the translation seat 201 to reversely move for a small distance until the bearing ring 413 is pressed against the positioning ring 415 again; the structure plays a role in buffering the final movement process of the translation seat 201, and avoids the situation that the translation seat 201 is directly contacted with the positioning plate 410 to cause the deformation of the positioning plate 410 under the action of a large external force.

In a preferred embodiment of the utility model, the low pressure casting furnace mounting structure is cast as follows:

the initial stage: the translation seat 201 and the casting furnace are positioned at the liquid injection station, and the molten metal is filled into the casting furnace through an external liquid injection device, and in the process, the release plate 203 moves towards the inner side of the positioning groove 202 until the casting furnace is filled with the molten metal.

Pushing: the translation seat 201 is pushed by the driving component 3 to move from the liquid filling station to the liquid lifting station, and in the process, the two limiting plates 304 automatically realize state conversion, so that the driving component 3 is converted from a load state to an unloading state.

Buffering: after the driving assembly 3 enters an unloading state, the translation seat 201 and the casting furnace continue to move towards the liquid lifting station due to the inertia effect, the translation seat 201 is attached to the end plate 402 and then pushes the end plate 402 to synchronously move, the reset spring 416 is stretched, and the buffer assembly 4 buffers the translation seat 201.

Positioning: in the process of buffering the translation seat 201 by the buffer assembly 4, the positioning plate 410 and the positioning rod 412 enter the positioning groove 202 to position the translation seat 201, so that the translation seat 201 is stationary at the liquid lifting station; in the positioning state, the return spring 416 has a return trend, the return spring 416 inevitably drives the expansion plate 401 to extend through oil pressure in the return process, and the expansion plate 401 cannot extend because of the positioning state of the translation seat 201, so that a self-locking effect is formed.

And (5) positioning is removed: after casting is completed, the sand mold and the pouring opening are removed, and the casting furnace is not subjected to upper pressure; the elastic support column 204 is reset, the casting furnace, the lifting plate 205 and the frame 206 are integrally lifted, the release plate 203 moves to the outer side of the positioning groove 202, the positioning plate 410 and the positioning rod 412 are pushed out of the positioning groove 202, the translation seat 201 is released from positioning, and the self-locking effect is released.

And (3) a reset stage: the translation seat 201 is pushed by the driving component 3 to move from the liquid lifting station to the liquid filling station, and in the process, the two limiting plates 304 automatically realize state conversion again, so that the driving component 3 is converted from a load state to an unloading state; finally, the translation seat 201 drives the casting furnace to return to the liquid injection station under the action of the buffer assembly 4.

In the actual production process, the casting furnace is required to be accurately aligned with the pouring opening, so that the position of the liquid lifting station is very accurate, and the casting furnace cannot move in the liquid lifting station; the position accuracy requirement on the casting furnace is not high in the liquid injection process, and the liquid injection station is allowed to have certain deviation.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims

1. The low-pressure casting furnace mounting structure comprises a bottom plate (1) arranged in a pit, and is characterized in that a mounting assembly (2) for mounting a casting furnace is movably arranged on the bottom plate (1);

the driving assembly (3) is arranged on the bottom plate (1) and is provided with a loading state for pushing the mounting assembly (2) to horizontally move and an unloading state for not forming horizontal thrust with the mounting assembly (2);

the buffer component (4) is arranged at the tail end of the motion stroke of the installation component (2), and the buffer component (4) buffers the installation component (2) after the driving component (3) is converted from a loading state to an unloading state.

2. A low pressure casting furnace mounting structure according to claim 1, characterized in that the mounting assembly (2) comprises a translation seat (201), the driving assembly (3) comprises a slide block (301) sliding along the displacement direction of the mounting assembly (2), and a push plate (302) for pushing the translation seat (201) is movably mounted on the slide block (301).

3. The low pressure casting furnace mounting structure according to claim 2, wherein the pushing plate (302) is fixedly provided with a rotating shaft (303), the rotating shaft (303) is in rotating fit with the sliding block (301) through a torsion spring, and the sliding block (301) is provided with a limiting unit for limiting the pushing plate (302).

4. A low pressure casting furnace mounting structure according to claim 3, wherein the limit unit includes two limit plates (304) vertically slidably mounted on the slider (301), the two limit plates (304) being disposed on both sides of the push plate (302), the limit plates (304) having a limit state of limiting the push plate (302) and a separation state of separating from the push plate (302).

5. The low pressure casting furnace mounting structure according to claim 4, wherein a bidirectional elastic telescopic rod (305) is hinged between the two limiting plates (304), and the middle section of the bidirectional elastic telescopic rod (305) is rotatably mounted on the sliding block (301); the drive assembly (3) further comprises a control unit for controlling the state of the limiting plate (304).

6. The low-pressure casting furnace mounting structure according to claim 2, wherein the buffer assembly (4) comprises a telescopic plate (401) which is horizontally and fixedly mounted above the bottom plate (1) and is flush with the translation seat (201), an end plate (402) is fixedly mounted at the end part of the telescopic section of the telescopic plate (401), a buffer plate (403) is fixedly mounted on the end plate (402), and the buffer assembly (4) further comprises a speed reduction unit for reducing the speed of the buffer plate (403).

7. A low pressure casting furnace mounting structure according to claim 6, wherein the surface of the buffer plate (403) is wavy; the speed reducing unit comprises a guide sleeve (404) fixedly arranged above the bottom plate (1), a speed reducing block (405) is slidably arranged on the guide sleeve (404), and a speed reducing spring (406) is connected between the speed reducing block (405) and the guide sleeve (404); the end surface of the deceleration block (405) facing the buffer plate (403) is attached to the buffer plate (403).

8. The low-pressure casting furnace mounting structure according to claim 6, wherein the translation seat (201) is provided with a positioning groove (202), an oil cylinder (407) communicated with the interior of the expansion plate (401) is fixedly mounted on the bottom plate (1), a piston plate (408) is slidably mounted in the oil cylinder (407), a return spring (409) is connected between the piston plate (408) and the inner wall of the oil cylinder (407), and a positioning unit which extends to the exterior of the oil cylinder (404) and is matched with the positioning groove (202) is mounted on the piston plate (408).

9. The low pressure casting furnace mounting structure according to claim 8, wherein the mounting assembly (2) further comprises a release plate (203) capable of releasing the engagement of the positioning unit with the positioning groove (202), the release plate (203) being slidably mounted in the positioning groove (202); the mounting assembly (2) further comprises an adjustment unit for adjusting the position of the release plate (203).

10. The low pressure casting furnace mounting structure according to claim 8, wherein the positioning unit comprises an elastic telescopic rod (409) fixedly mounted on the piston plate (408), and a positioning plate (410) matched with the positioning groove (202) is fixedly mounted at the telescopic section end of the elastic telescopic rod (409).