Horizontal charging device for precision casting furnace and application method thereof

Abstract

The present application relates to a horizontal feeding device of a precision casting furnace and an application method thereof, which adopts a connection of a crucible supporting mechanism and a central shaft driving mechanism on one side of a central shaft driving device; a connection of a horizontal feeding tank on the other side of the central shaft driving device; a connection of an isolation valve plate on the other side of the horizontal feeding tank; a passing through of the horizontal feeding device of the precision casting furnace from the middle, an opening of the isolation valve plate when the vacuum degree of a smelting cavity and the horizontal feeding tank is the same, and a sending of raw materials or a crucible into the smelting cavity in sequence through the horizontal feeding tank and the isolation valve plate under the actions of a straight-line guide rail driving mechanism, the central shaft driving mechanism and the crucible supporting mechanism; a horizontal placement of the horizontal feeding mechanism, which makes the operators not need to carry the raw materials and the crucible manually, a position of the device in the whole precision casting furnace, which does not affect the height of a workshop, and a convenient hoisting.

Description

TECHNICAL FIELD

[0001] The embodiment of the application relates to a horizontal feeding device and an application method thereof, in particular to a horizontal feeding device of a precision casting furnace and an application method thereof. BACKGROUND

[0002] The vacuum precision casting furnace is one kind of vacuum melting equipment, mainly inductively heats and melts metal raw materials under a vacuum environment, and pours the metal raw materials into a mold to cool under certain conditions, so that a required casting product is finally prepared, and is mainly used for producing advanced high-temperature alloy parts.

[0003] The design and use of the feeding device of the vacuum precision casting furnace have the following effects and influences on the whole production process: first, the feeding device is an important component of the equipment and is indispensable to the production process; second, the operation of the feeding device has an important influence on the production process rhythm of the equipment, different actions and sequences during feeding occupy different time, and the process rhythm needs to be adjusted accordingly; third, the sealing property of the feeding device has a certain influence on the vacuum degree of the equipment, and the operation of the feeding action has different requirements for the sealing of the equipment; fourth, the design of the feeding device has a certain influence on the maintenance of the equipment, and the feeding device of the equipment needs to be maintained correspondingly when the equipment is shut down for maintenance, especially the parts involved in the corresponding actions; fifth, the feeding device has a certain influence on the production intensity and efficiency of the operator, and the adjustment of the feeding mode will make the operator adjust the scheduling length and cooperation accordingly.

[0004] Generally, the vacuum precision casting furnace uses a vertical feeding mode for feeding, under the action of a rotating tower mechanism, the equipment can complete the feeding action and the temperature measurement action, and the optical temperature measurement and the thermocouple temperature measurement can also have more accurate calibration, and the height of the equipment during vertical feeding has higher requirements for the height of the plant.

[0005] Many plants built earlier have to consider the height of the plant when planning new equipment, and a new idea is provided when the height of the plant is limited, and a new feeding mode is also provided for the vacuum precision casting furnace.

[0006] Of course, the horizontal feeding device also has certain use requirements, the equipment can only feed once during the feeding stage, and the raw materials cannot be supplemented for melting and pouring during the operation of the equipment, so the quality of the raw materials required for this time of melting and pouring needs to be confirmed before the operation of the equipment. SUMMARY

[0007] The embodiment of the application relates to a horizontal feeding device and an application method thereof, in particular to a horizontal feeding device of a precision casting furnace and an application method thereof.

[0008] A straight line guide rail driving mechanism is arranged on one side of the horizontal feeding device of the precision casting furnace.

[0009] A crucible supporting mechanism is arranged above the straight line guide rail driving mechanism.

[0010] A middle shaft driving mechanism is arranged above the crucible supporting mechanism.

[0011] A central shaft driving device is fixedly connected on the crucible supporting mechanism below the middle shaft driving mechanism; the crucible supporting mechanism and the middle shaft driving mechanism are connected on one side of the central shaft driving device.

[0012] A horizontal feeding box is connected on the other side of the central shaft driving device.

[0013] An isolation valve plate is connected on the other side of the horizontal feeding box.

[0014] The central shaft driving device passes through the middle of the horizontal feeding device of the precision casting furnace and the integrated device for clamping the crucible; when the vacuum degree of the smelting cavity is the same as that of the horizontal feeding box, the isolation valve plate is opened; under the action of the straight line guide rail driving mechanism, the middle shaft driving mechanism and the crucible supporting mechanism, the raw material or the crucible is sent into the smelting cavity in sequence through the horizontal feeding box and the isolation valve plate.

[0015] Further, in the horizontal feeding device of the precision casting furnace, the central shaft driving device further comprises:

[0016] An outer shaft is arranged on the outer side of the central shaft driving device.

[0017] A middle shaft is arranged in the outer shaft.

[0018] An inner shaft is arranged in the middle shaft.

[0019] The outer shaft, the middle shaft and the inner shaft are located on the same shaft center; the straight line guide rail driving mechanism and the middle shaft driving mechanism both act on the central shaft driving device; the outer shaft (61) moves through the straight line guide rail driving mechanism (1); the middle shaft (62) moves through the middle shaft driving mechanism (3); and the inner shaft (63) moves through the crucible supporting mechanism (2).

[0020] Further, in the horizontal feeding device of the precision casting furnace,

[0021] The outer shaft is fixed on one side of the horizontal feeding tank and moves through the straight guide rail mechanism, a first protective cover is arranged on the outer shaft, the first protective cover is fixed through a first quick-release type neck clamp at the connecting position, a first dustproof sealing ring, a first star-shaped sealing ring and a first O-shaped sealing ring are arranged at the connecting position of the first protective cover for sealing, and the outer shaft inner bushing and the outer shaft outer bushing are used for sealing and wear protection, and the second cup-shaped lubricating device is used for regularly lubricating the central shaft driving device.

[0022] The middle shaft is located in the outer shaft and moves through a middle shaft driving mechanism, the middle shaft is protected by a second protective cover, the second protective cover is fixed through a second quick-release type neck clamp at the connecting position, the outer end of the second protective cover is fixed through a middle shaft end block, and a second dustproof sealing ring, a second star-shaped sealing ring and a second O-shaped sealing ring are arranged at the outer end of the second protective cover for sealing, and the middle shaft inner bushing and the middle shaft outer bushing are used for sealing and wear protection.

[0023] The inner shaft is located in the middle shaft and moves through a crucible support mechanism, the outer end of the inner shaft is fixed through an inner shaft driving fixed block, and a third dustproof sealing ring, a third O-shaped sealing ring and a fourth O-shaped sealing ring are arranged at the outer end of the inner shaft for sealing.

[0024] The cooperation of the outer shaft, the middle shaft and the inner shaft realizes the operation of the raw materials and the crucible.

[0025] Further, in the horizontal feeding device of the precision casting furnace, the isolation valve plate is connected with the horizontal feeding tank and the smelting cavity, one side of the isolation valve plate is fixed on the smelting cavity through a connecting flange along a preset pipeline connecting port, and the other side of the isolation valve plate is connected with the horizontal feeding tank through a connecting flange; the isolation valve plate and the horizontal feeding tank are connected on the same horizontal line.

[0026] The isolation valve plate is arranged in a cavity structure.

[0027] Further, in the horizontal feeding device of the precision casting furnace, the isolation valve plate comprises:

[0028] a valve body, a sealing plate, a driving execution mechanism, a cooling water pipeline connecting port, and a vacuum pipeline connecting port; the driving execution mechanism is arranged at the uppermost end of the isolation valve plate, the sealing plate is connected below the driving execution mechanism, and the sealing plate moves under the driving of the driving execution mechanism.

[0029] The water cooling channel of the isolation valve plate is arranged in the cavity and is cooled through a soft inlet and outlet water pipe flowing medium.

[0030] The isolation valve plate is connected to the water cooling system through the cooling water pipeline connecting port.

[0031] The vacuum pump group is connected to the isolation valve plate through the vacuum pipeline connection port, and the horizontal feeding tank is vacuumized through the vacuum pipeline connection port.

[0032] Further, in the horizontal feeding device of the precision casting furnace, the straight guide rail driving mechanism further comprises a servo motor, a guide rail unit, a connecting flange, and a shaft coupling.

[0033] The servo motor is arranged on one side of the straight guide rail driving mechanism.

[0034] The guide rail unit is arranged on the other side of the straight guide rail driving mechanism.

[0035] The connecting flange is connected between the servo motor and the guide rail unit.

[0036] The straight guide rail driving mechanism acts on an outer shaft, the stroke and running speed of the outer shaft are set by the straight guide rail driving mechanism, and the servo motor drives the guide rail unit.

[0037] The straight guide rail driving mechanism drives the outer shaft to gradually move into the interior of the smelting cavity through the driving of the servo motor, and the servo motor moves with the movement of the outer shaft.

[0038] Further, in the horizontal feeding device of the precision casting furnace, the central shaft driving mechanism comprises a first cylinder, a central shaft driving fixed frame, a central shaft driving end connecting frame, a central shaft driving end fixed block, a positioning block, a drag chain guide support, an engineering plastic drag chain, a drag chain moving end support, a drag chain fixed end support, and a pull wire displacement sensor.

[0039] The first cylinder, the central shaft driving fixed frame, the central shaft driving end connecting frame, the central shaft driving end fixed block, and the positioning block constitute a driving unit of the central shaft driving mechanism, and are connected and fixed with the end of the lower crucible supporting mechanism.

[0040] The drag chain guide support, the engineering plastic drag chain, the drag chain moving end support, and the drag chain fixed end support constitute a moving unit of the central shaft driving mechanism.

[0041] The central shaft is driven by the first cylinder to move the central shaft through the drag chain.

[0042] The pull wire displacement sensor is located near the center line of the central shaft driving device to monitor the moving stroke of the central shaft driving device.

[0043] After the straight guide rail driving mechanism runs to the limit position, the first cylinder is started to push the raw material to run to the inside of the crucible, and then returns, and the return process is sequentially performed by the first cylinder and the straight guide rail driving mechanism, thereby placing the raw material for the horizontal feeding device of the precision casting furnace.

[0044] Further, in the horizontal feeding device of the precision casting furnace, the crucible supporting mechanism comprises an inner shaft, a second cylinder, and a first cup-shaped lubricant.

[0045] The second cylinder is fixed on the inner shaft, and the first cup-shaped lubricant is fixed on the second cylinder.

[0046] Further, in the horizontal feeding device of the precision casting furnace, the horizontal feeding box comprises:

[0047] a feeding box cavity, a box door, a counterweight, a first support seat, a second support seat, a door handle, a box door mechanical lock, a pin shaft, and an inductive proximity switch.

[0048] The horizontal feeding box is fixed on the horizontal feeding box support frame through the first support seat and the second support seat.

[0049] During the operation of the entire device, the raw material and the crucible are first placed on the designated position in the horizontal feeding box, and after the placement is completed, the horizontal feeding box is closed, the door handle, the box door mechanical lock, and the pin shaft are connected in cooperation on the horizontal feeding box, and the counterweight is arranged at the other end of the box door.

[0050] The inductive proximity switch is installed on the box door.

[0051] In the present application, an application method of the horizontal feeding device of the precision casting furnace is also provided, which comprises the following steps:

[0052] In the preparation work of feeding and clamping the crucible, the box door of the horizontal feeding box is manually opened, the raw material is placed on the designated position in the horizontal feeding box, the position is opposite to and close to the top end of the central shaft, then the box door of the horizontal feeding box is manually closed, and the horizontal feeding box is vacuumized, then when the vacuum degree of the horizontal feeding box is the same as that of the smelting cavity, the isolation valve plate opens the sealing plate, under the action of the straight guide rail driving mechanism, the outer shaft is first operated to the position close to the crucible, then under the action of the central shaft driving mechanism, the central shaft is operated to the crucible with the raw material, then the central shaft driving mechanism and the straight guide rail driving mechanism are sequentially operated to return, and after the central shaft driving device is operated, the isolation valve plate is reset to isolate the horizontal feeding box and the smelting cavity again.

[0053] When the crucible is transported, the horizontal crucible replacing mechanism assembly is installed at the end of the central shaft driving device in the horizontal charging box in advance, then the crucible is sleeved outside the mechanism assembly, the crucible is fixed on the mechanism assembly by the action of the first cylinder of the crucible supporting mechanism, the position is opposite and close to the top end of the central shaft, then the crucible is transported to the preset position in the smelting cavity by the action of the straight line guide rail driving mechanism and the central shaft driving mechanism, then the fixation of the crucible is released by the action of the first cylinder of the crucible supporting mechanism, and the horizontal crucible replacing mechanism assembly is transported to the initial position by the action of the straight line guide rail driving mechanism and the central shaft driving mechanism in turn, and then the horizontal crucible replacing mechanism assembly can be removed.

[0054] Compared with the prior art, the embodiment of the present application adopts the following structure: a straight line guide rail driving mechanism is arranged on one side of the horizontal charging device of the precision casting furnace; a crucible supporting mechanism is arranged above the straight line guide rail driving mechanism; a central shaft driving mechanism is arranged above the crucible supporting mechanism; a central shaft driving device is fixedly connected on the crucible supporting mechanism below the central shaft driving mechanism; the crucible supporting mechanism and the central shaft driving mechanism are connected on one side of the central shaft driving device; a horizontal charging box is connected on the other side of the central shaft driving device; an isolation valve plate is connected on the other side of the horizontal charging box; the isolation valve plate is opened when the vacuum degree of the smelting cavity is the same as that of the horizontal charging box, and the raw material or the crucible is sent into the smelting cavity in turn through the horizontal charging box and the isolation valve plate under the action of the straight line guide rail driving mechanism, the central shaft driving mechanism and the crucible supporting mechanism. The device has the advantages of compact structure, convenient use, simple operation, reduced working intensity of the operator and improved working efficiency. Firstly, the counterweight used in the design of the horizontal charging box avoids the supporting work of the operator on the box door, and the box door can be balanced under the action of the gravity of the counterweight; secondly, the horizontal placement of the horizontal charging device avoids the manual transportation of the operator during the transportation of the raw material and the crucible; thirdly, the driving of the whole central shaft driving device is coordinated with the feeding under the action of the servo motor, the first cylinder and the first cylinder, and the process is accurate and adjustable; the position of the device in the whole precision casting furnace does not affect the height of the factory building, and the hoisting is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0055] Figure 1 : front view;

[0056] Figure 2 : top view;

[0057] Figure 3 : left view;

[0058] Figure 4 : front view A-A direction sectional view;

[0059] Figure 5 : B-B direction cross-sectional view in the main view;

[0060] Figure 6 : C-C direction cross-sectional view in the main view;

[0061] In the figure: 1 - straight guide rail mechanism, 11 - servo motor, 12 - guide rail unit, 13 - connecting flange, 14 - shaft coupling, 2 - crucible support mechanism, 21 - air cylinder, 22 - first cup-shaped lubrication, 3 - middle shaft driving mechanism, 31 - air cylinder, 32 - middle shaft driving fixed frame, 33 - middle shaft driving end connecting frame, 34 - middle shaft driving end fixed block, 35 - positioning block, 36 - drag chain guide support, 37 - engineering plastic drag chain, 38 - drag chain moving end support, 39 - drag chain fixed end support, 30 - wire displacement sensor, 4 - isolation valve plate, 41 - valve body, 42 - sealing plate, 43 - driving execution mechanism, 44 - cooling water pipeline connection port, 45 - vacuum pipeline connection port, 5 - horizontal charging box, 51 - horizontal charging box cavity, 52 - box door, 53 - counterweight, 54 - first support seat, 55 - second support seat, 56 - door handle, 57 - box door mechanical lock, 58 - pin shaft, 59 - inductive proximity switch, 6 - large shaft, 61 - outer shaft, 611 - shield, 612 - first speed release type throat, 613 - first dustproof sealing ring, 614 - first star-shaped sealing ring, 615 - first O-shaped sealing ring, 616 - outer shaft inner bushing, 617 - outer shaft outer bushing, 618 - second cup-shaped lubrication, 62 - middle shaft, 621 - shield, 622 - second speed release type throat, 623 - middle shaft end block, 624 - second dustproof sealing ring, 625 - middle shaft inner bushing, 626 - middle shaft outer bushing, 627 - second star-shaped sealing ring, 628 - second O-shaped sealing ring, 63 - inner shaft, 631 - inner shaft driving fixed block, 632 - third dustproof sealing ring, 633 - third O-shaped sealing ring, 634 - fourth O-shaped sealing ring, 7 - horizontal charging box support frame. DETAILED DESCRIPTION

[0062] In order to make the purpose, technical scheme and advantages of the present application clearer, the embodiments of the present application will be described in detail below with reference to the drawings. However, those skilled in the art can understand that, in the embodiments of the present application, many technical details are proposed in order to make the readers better understand the present application. However, even without these technical details and based on various changes and modifications of the following embodiments, the technical scheme claimed in the claims of the present application can be implemented.

[0063] The embodiments of the present application relate to a horizontal charging device of a precision casting furnace, as shown in FIG. 1, comprising: Figures 1 to 6

[0064] ​The straight guide rail driving mechanism 1 is arranged on one side of the horizontal feeding device of the precision casting furnace in the embodiment;

[0065] The crucible support mechanism 2 is arranged above the straight guide rail driving mechanism 1;

[0066] The middle shaft driving mechanism 3 is arranged above the crucible support mechanism 2;

[0067] The center shaft driving device 6 is fixedly connected to the crucible support mechanism 2 below the middle shaft driving mechanism 3; the crucible support mechanism 2 and the middle shaft driving mechanism 3 are connected to one side of the center shaft driving device 6;

[0068] The horizontal feeding box 5 is connected to the other side of the center shaft driving device 6; the horizontal feeding box 5 is used for placing raw materials and crucibles

[0069] The isolation valve plate 4 is connected to the other side of the horizontal feeding box 5; the isolation valve plate 4 is used for isolating the horizontal feeding box 5 from the smelting cavity; since the smelting cavity is in a vacuum state, the isolation valve plate 4 can be opened only when the vacuum degree of the horizontal feeding box 5 is consistent with that of the smelting cavity.

[0070] The center shaft driving device 6 passes through the middle of the horizontal feeding device and the crucible clamping device of the precision casting furnace; when the vacuum degrees of the smelting cavity and the horizontal feeding box 5 are the same, the isolation valve plate 4 is opened; under the action of the straight guide rail driving mechanism 1, the middle shaft driving mechanism 3 and the crucible support mechanism 2, the raw materials or the crucibles are sequentially sent into the smelting cavity through the horizontal feeding box 5 and the isolation valve plate 4.

[0071] The horizontal feeding device of the precision casting furnace in the embodiment has the advantages of compact structure, convenient use and simple operation; the working strength of the operator is reduced, and the working efficiency is improved; first, the counterweight block used in the design of the horizontal feeding box avoids the supporting work of the operator on the box door; the box door can be balanced under the gravity of the counterweight block; second, the horizontal placement of the horizontal feeding device makes the operator not need to manually carry the raw materials and the crucibles during the carrying process; third, the driving of the entire center shaft driving device is cooperated with feeding under the action of the servo motor, the first cylinder and the first cylinder, and the process is accurately adjustable; the position of the device in the entire precision casting furnace does not affect the height of the factory building, and the hoisting is convenient.

[0072] In order to achieve the above technical effects, the horizontal feeding device of the precision casting furnace in the embodiment, as shown in Figures 1 to 6 The center shaft driving device 6 further comprises:

[0073] The outer shaft 61 is arranged on the outer side of the center shaft driving device 6;

[0074] The middle shaft 62 is arranged in the outer shaft 61;

[0075] The inner shaft 63 is arranged in the middle shaft 62;

[0076] The outer shaft 61, the middle shaft 62 and the inner shaft 63 are located at the same axis, and the straight guide rail driving mechanism 1 and the middle shaft driving mechanism 3 are both applied to the central shaft driving device 6. All the execution motion units of the outer shaft 61, the middle shaft 62 and the inner shaft 63 are applied to the central shaft driving device 6 for control.

[0077] In order to achieve the above technical effects, the horizontal feeding device of the precision casting furnace in the embodiment is as shown in Figures 1 to 6

[0078] The outer shaft 61 is fixed on one side of the horizontal feeding box 5 and moves through the straight guide rail mechanism 1. The outer shaft 61 is provided with a first protective cover 611. The first protective cover 611 is connected and fixed by a first quick-release type neck clamp 612. The first protective cover 611 is provided with a first dustproof sealing ring 613, a first star-shaped sealing ring 614 and a first O-shaped sealing ring 615 for sealing. The outer shaft 61 is provided with an outer shaft inner bushing 616 and an outer shaft outer bushing 617 for sealing and wear protection. A second cup-shaped lubricant 618 can be used for regular lubrication of the central shaft driving device 6.

[0079] The middle shaft 62 is located inside the outer shaft 61 and moves through the middle shaft driving mechanism 3. The middle shaft 62 is protected by a second protective cover 621. The second protective cover 621 is connected and fixed by a second quick-release type neck clamp 622. The outer end of the second protective cover 621 is fixed by a middle shaft end block 623. The outer end of the second protective cover 621 is provided with a second dustproof sealing ring 624, a second star-shaped sealing ring 627 and a second O-shaped sealing ring 628 for sealing. The middle shaft 62 is provided with a middle shaft inner bushing 625 and a middle shaft outer bushing 626 for sealing and wear protection.

[0080] The inner shaft 63 is located inside the middle shaft 62 and moves through the crucible support mechanism 2. The outer end of the inner shaft 63 is fixed by an inner shaft driving fixed block 631. The outer end of the inner shaft 63 is provided with a third dustproof sealing ring 632, a third O-shaped sealing ring 633 and a fourth O-shaped sealing ring 634 for sealing.

[0081] The cooperation of the outer shaft 61, the middle shaft 62 and the inner shaft 63 realizes the operation of the raw materials and the crucible.

[0082] In order to achieve the above technical effects, the horizontal feeding device of the precision casting furnace in the embodiment is as shown in Figures 1 to 6 ​As shown, the isolation valve plate 4 connects the horizontal charging tank 5 and the smelting cavity, one side of the isolation valve plate 4 is fixed on the smelting cavity through the connecting flange along the preset pipeline connecting port, and the other side of the isolation valve plate 4 is connected with the horizontal charging tank 5 through the connecting flange of the symmetrical interface; the isolation valve plate 4 and the horizontal charging tank 5 are connected on the same horizontal line.

[0083] The isolation valve plate 4 is provided with a cavity structure in the middle.

[0084] In order to realize the above technical effects, the horizontal charging device of the precision casting furnace in the embodiment comprises Figures 1 to 6 As shown, the isolation valve plate 4 comprises:

[0085] The valve body 41, the sealing plate 42, the driving execution mechanism 43, the cooling water pipeline connecting port 44, the vacuum pipeline connecting port 45; the driving execution mechanism 43 is arranged at the uppermost end of the isolation valve plate 4, the sealing plate 42 is connected below the driving execution mechanism 43, and the sealing plate 42 moves under the driving of the driving execution mechanism 43;

[0086] The water cooling channel of the isolation valve plate 4 is arranged in the cavity and cooled by flowing medium through the soft inlet and outlet water pipe;

[0087] The isolation valve plate 4 is connected to the water cooling system through the cooling water pipeline connecting port 44;

[0088] The vacuum pump set is connected to the isolation valve plate 4 through the vacuum pipeline connecting port 45, and the horizontal charging tank 5 is vacuumized through the vacuum pipeline connecting port 45.

[0089] In order to realize the above technical effects, the horizontal charging device of the precision casting furnace in the embodiment comprises Figures 1 to 6 As shown, the straight guide rail driving mechanism 1 further comprises a servo motor 11, a guide rail unit 12, a connecting flange 13 and a shaft coupling 14;

[0090] The servo motor 11 is arranged on one side of the straight guide rail driving mechanism 1;

[0091] The guide rail unit 12 is arranged on the other side of the straight guide rail driving mechanism 1;

[0092] The connecting flange 13 is connected between the servo motor 11 and the guide rail unit 12;

[0093] The straight guide rail driving mechanism 1 acts on the outer shaft 61, the stroke and running speed of the outer shaft 61 are set by the straight guide rail driving mechanism 1, and the servo motor 11 drives the guide rail unit 12;

[0094] The straight guide rail driving mechanism 1 drives the outer shaft 61 to gradually move into the smelting cavity through the driving of the servo motor 11, and the servo motor 11 moves with the movement of the outer shaft 61.

[0095] To achieve the aforementioned technical effects, the horizontal feeding device for the precision casting furnace in this embodiment, such as... Figures 1 to 6 As shown, the central shaft drive mechanism 3 includes: a first cylinder 31, a central shaft drive fixing frame 32, a central shaft drive end connecting frame 33, a central shaft drive end fixing block 34, a positioning block 35, a drag chain guide bracket 36, an engineering plastic drag chain 37, a drag chain moving end bracket 38, a drag chain fixed end bracket 39, and a pull wire displacement sensor 30.

[0096] The first cylinder 31, the central shaft drive fixing frame 32, the central shaft drive end connecting frame 33, the central shaft drive end fixing block 34, and the positioning block 35 constitute the drive unit of the central shaft drive mechanism 3; the positioning block is connected and fixed to the end of the crucible support mechanism 2 below.

[0097] The drag chain guide bracket 36, the engineering plastic drag chain 37, the drag chain moving end bracket 38, and the drag chain fixed end bracket 39 constitute the moving unit of the central shaft drive mechanism 3;

[0098] The central shaft 62 is driven by the first cylinder 31, which drives the cable chain to move the central shaft.

[0099] The wire displacement sensor 30 is located near the centerline of the central shaft drive device 6 to monitor the movement stroke of the central shaft drive device 6.

[0100] After the straight guide rail drive mechanism 1 reaches its limit position, the first cylinder 31 is activated, pushing the raw material into the equipment and into the crucible, and then returning. The return process is carried out sequentially by the first cylinder 31 and the straight guide rail drive mechanism 1, which is the process of placing raw materials in the horizontal feeding device of the precision casting furnace.

[0101] To achieve the aforementioned technical effects, the horizontal feeding device for the precision casting furnace in this embodiment, such as... Figures 1 to 6 As shown, the crucible support mechanism 2 includes an inner shaft 63, a second cylinder 21, and a first cup-shaped lubricant 22;

[0102] A second cylinder 21 is fixed on the inner shaft 63; a first cup-shaped lubricant 22 is fixed on the second cylinder 21.

[0103] To achieve the aforementioned technical effects, the horizontal feeding device for the precision casting furnace in this embodiment, such as... Figures 1 to 6 As shown, the horizontal feeding box 5 includes:

[0104] 51. Feeding box cavity, 52. Box door, 53. Counterweight, 54. First support base, 55. Second support base, 56. Door handle, 57. Box door mechanical lock, 58. Pin, 59. Inductive proximity switch;

[0105] The horizontal feeding box 5 is fixed to the horizontal feeding box support frame 7 by the first support seat 54 and the second support seat 55;

[0106] During the whole operation of the device, the raw materials and the crucible are first placed in the designated position of the horizontal charging box 5. After the placement is completed, the horizontal charging box 5 is closed, the door handle 56, the box door mechanical lock 57 and the pin shaft are connected, and the counterweight 53 is arranged at the other end of the box door 52.

[0107] The inductive proximity switch 59 is installed on the box door 52.

[0108] The application method of the horizontal charging device of the precision casting furnace is also provided in the second embodiment of the application, as shown in the figure, comprising the following steps: Figures 1 to 6

[0109] In the preparation work of charging and clamping the crucible, the box door of the horizontal charging box 5 is manually opened, the raw materials are placed in the designated position of the horizontal charging box 5, the position is opposite and close to the top end of the central shaft, then the box door of the horizontal charging box 5 is manually closed, and the vacuum of the horizontal charging box 5 is started. When the vacuum degree of the horizontal charging box 5 is the same as that of the smelting cavity, the isolation valve plate 4 opens the sealing plate, the outer shaft is first operated to the position close to the crucible under the action of the straight-line guide rail driving mechanism 1, then the central shaft is operated into the crucible under the action of the central shaft driving mechanism 3, and then the central shaft driving mechanism 3 and the straight-line guide rail driving mechanism 1 are operated in sequence, the center shaft driving device 6 is actuated, the isolation valve plate 4 is reset, and the horizontal charging box 5 is isolated from the smelting cavity again.

[0110] When the crucible is transported, the horizontal crucible replacement mechanism assembly is installed at the end of the center shaft driving device 6 in the horizontal charging box 5 in advance, then the crucible is sleeved outside the mechanism assembly, the crucible is fixed on the mechanism assembly by the action of the second cylinder 21 of the crucible supporting mechanism 2, the position is opposite and close to the top end of the central shaft, then the crucible is transported to the preset position in the smelting cavity by the action of the straight-line guide rail driving mechanism 1 and the central shaft driving mechanism 3, then the fixation of the crucible is released by the action of the cylinder of the crucible supporting mechanism 2, and the horizontal crucible replacement mechanism assembly is transported to the initial position under the action of the straight-line guide rail driving mechanism 1 and the central shaft driving mechanism 3 in sequence, and then it can be removed.

[0111] The crucible after smelting and pouring can also be taken out from the smelting cavity in the above-mentioned manner.

[0112] Those skilled in the art can understand that the above-mentioned embodiments are specific embodiments for realizing the application, and various changes can be made in form and details in actual application without departing from the spirit and scope of the application.​

Claims

1. A horizontal feeding device for a precision casting furnace, characterized in that, include: The straight guide rail drive mechanism (1) is provided on one side of the horizontal feeding device of the precision casting furnace. The crucible support mechanism (2) is provided above the straight guide rail drive mechanism (1). A central shaft drive mechanism (3) is provided above the crucible support mechanism (2). A central shaft drive device (6) is fixedly connected to the crucible support mechanism (2) below the central shaft drive mechanism (3); the crucible support mechanism (2) and the central shaft drive mechanism (3) are connected to one side of the central shaft drive device (6); A horizontal feeding box (5) is connected to the other side of the central shaft drive device (6). Isolation valve plate (4) is connected to the other side of the horizontal feeding box (5); The central shaft drive device (6) passes through the middle of the horizontal feeding device of the precision casting furnace. When the vacuum degree of the melting chamber and the horizontal feeding box (5) are the same, the isolation valve plate (4) opens. Under the action of the straight guide rail drive mechanism (1), the central shaft drive mechanism (3) and the crucible support mechanism (2), it passes through the horizontal feeding box (5) and the isolation valve plate (4) in sequence, and sends the raw materials or crucibles into the melting chamber respectively. The central shaft drive device (6) further includes: The outer shaft (61) is provided on the outside of the central shaft drive device (6). Central shaft (62), the central shaft (62) is disposed in the outer shaft (61); Inner shaft (63), the inner shaft (63) is disposed in the central shaft (62); The outer shaft (61), the middle shaft (62), and the inner shaft (63) are located on the same axis. The straight guide rail drive mechanism (1) and the middle shaft drive mechanism (3) both act on the central shaft drive device (6). The outer shaft (61) moves through the straight guide rail drive mechanism (1). The middle shaft (62) moves through the middle shaft drive mechanism (3). The inner shaft (63) moves through the crucible support mechanism (2).

2. The horizontal feeding device for a precision casting furnace according to claim 1, characterized in that, The outer shaft (61) is fixed on one side of the horizontal feeding box (5) and moves through the straight guide rail drive mechanism (1). The outer shaft (61) is protected by a first protective cover (611). The connection of the first protective cover (611) is fixed by a first quick-release hose clamp (612). A first dustproof sealing ring (613), a first star-shaped sealing ring (614), and a first O-ring sealing ring (615) are provided at the connection of the first protective cover (611) for sealing. The outer shaft inner bushing (616) and the outer shaft outer bushing (617) provide sealing and wear protection. The second cup-shaped lubricant (618) can lubricate the central shaft drive device (6) periodically. The central shaft (62) is located inside the outer shaft (61) and moves through the central shaft drive mechanism (3). The central shaft (62) is protected by a second protective cover (621). The connection of the second protective cover (621) is fixed by a second quick-release hose clamp (622). The outer end of the second protective cover (621) is fixed by the central shaft end block (623). A second dustproof sealing ring (624), a second star-shaped sealing ring (627), and a second O-ring sealing ring (628) are provided at the outer end of the second protective cover (621) for sealing. The central shaft inner bushing (625) and the central shaft outer bushing (626) provide sealing and wear protection. The inner shaft (63) is located inside the central shaft (62) and moves through the crucible support mechanism (2). The outer end of the inner shaft (63) is fixed by the inner shaft drive fixing block (631). The outer end of the inner shaft (63) is provided with a third dustproof sealing ring (632), a third O-ring sealing ring (633), and a fourth O-ring sealing ring (634) for sealing. The combined use of the outer shaft (61), the middle shaft (62), and the inner shaft (63) enables the operation of the raw materials and the crucible.

3. The horizontal feeding device for a precision casting furnace according to claim 1, characterized in that, The isolation valve plate (4) connects the horizontal feeding box (5) and the melting chamber. One side of the isolation valve plate (4) is fixed to the melting chamber through a connecting flange along the preset pipe connection port. The other side of the isolation valve plate (4) has a symmetrical interface that is connected to the horizontal feeding box (5) through a connecting flange. The isolation valve plate (4) and the horizontal feeding box (5) are connected on the same horizontal line. The isolation valve plate (4) is configured as a cavity structure in the middle.

4. The horizontal feeding device for a precision casting furnace according to claim 3, characterized in that, The isolation valve plate (4) includes: Valve body (41), sealing plate (42), drive actuator (43), cooling water pipe connection port (44), vacuum pipe connection port (45); the drive actuator (43) is provided at the uppermost end of the isolation valve plate (4), the sealing plate (42) is connected below the drive actuator (43), and the sealing plate (42) moves under the drive of the drive actuator (43); The water-cooling channel of the isolation valve plate (4) is located in the cavity and is cooled by the flow of medium through the flexible inlet and outlet water pipes; The isolation valve plate (4) is connected to the water cooling system through the cooling water pipe connection port (44); The vacuum pump unit is connected to the isolation valve plate (4) through the vacuum pipe connection port (45), and the horizontal feeding box (5) is evacuated through the vacuum pipe connection port (45).

5. The horizontal feeding device for a precision casting furnace according to claim 1, characterized in that, The straight guide rail drive mechanism (1) also includes a servo motor (11), a guide rail unit (12), a connecting flange (13), and a coupling (14). The servo motor (11) is provided on one side of the straight guide rail drive mechanism (1). The guide rail unit (12) is provided on the other side of the straight guide rail drive mechanism (1). The connecting flange (13) is connected between the servo motor (11) and the guide rail unit (12). The straight guide rail drive mechanism (1) acts on the outer shaft (61), and the stroke and running speed of the outer shaft (61) are set by the straight guide rail drive mechanism (1). The servo motor (11) drives the guide rail unit (12). The straight guide rail drive mechanism (1) drives the outer shaft (61) to gradually move into the melting chamber through the drive of the servo motor (11). The servo motor (11) moves along with the movement of the outer shaft (61).

6. The horizontal feeding device for a precision casting furnace according to claim 1, characterized in that, The central shaft drive mechanism (3) includes: a first cylinder (31), a central shaft drive fixing frame (32), a central shaft drive end connecting frame (33), a central shaft drive end fixing block (34), a positioning block (35), a drag chain guide bracket (36), an engineering plastic drag chain (37), a drag chain moving end bracket (38), a drag chain fixed end bracket (39), and a pull wire displacement sensor (30). The first cylinder (31), the central shaft drive fixing frame (32), the central shaft drive end connecting frame (33), the central shaft drive end fixing block (34), and the positioning block (35) constitute the drive unit of the central shaft drive mechanism 3; the positioning block is connected and fixed to the end of the crucible support mechanism (2) below. The drag chain guide bracket (36), the engineering plastic drag chain (37), the drag chain moving end bracket (38), and the drag chain fixed end bracket (39) constitute the moving unit of the central shaft drive mechanism 3. The central shaft (62) is driven by the first cylinder (31) to move through the drag chain; The wire displacement sensor (30) is located near the centerline of the central shaft drive device (6) to monitor the travel of the central shaft drive device (6); After the straight guide rail drive mechanism (1) runs to the limit position, the first cylinder (31) is started, pushing the raw material into the equipment and into the crucible, and then returning. The return process is carried out by the first cylinder (31) and the straight guide rail drive mechanism (1) in sequence, which is the process of placing raw materials in the horizontal feeding device of the precision casting furnace.

7. The horizontal feeding device for a precision casting furnace according to claim 1, characterized in that, The crucible support mechanism (2) includes an inner shaft (63), a second cylinder (21), and a first cup-shaped lubricant (22). A second cylinder (21) is fixed on the inner shaft (63); the first cup-shaped lubricant (22) is fixed on the second cylinder (21).

8. The horizontal feeding device for a precision casting furnace according to claim 1, characterized in that, The horizontal feeding box (5) includes: Feeding box cavity (51), box door (52), counterweight (53), first support base (54), second support base (55), door handle (56), box door mechanical lock (57), pin (58), inductive proximity switch (59); The horizontal feeding box (5) is fixed on the horizontal feeding box support frame (7) by the first support base (54) and the second support base (55); During the entire operation of the device, the raw materials and crucibles are first placed in the designated position in the horizontal feeding box 5. After placement, the horizontal feeding box (5) is closed. The door handle (56), the mechanical lock (57) of the box door and the pin are fixed on the horizontal feeding box (5). The counterweight (53) is set at the other end of the box door (52). The inductive proximity switch (59) is mounted on the door (52).

9. The application method of the horizontal feeding device for the precision casting furnace according to any one of claims 1-8, characterized in that, Includes the following steps: In the preparation work of feeding and clamping crucible, manually open the door of the horizontal feeding box (5), place the raw material in the designated position in the horizontal feeding box (5), which is directly opposite and close to the top of the central shaft, and then manually close the door of the horizontal feeding box (5) and start to evacuate the horizontal feeding box (5). Then, when the vacuum degree of the horizontal feeding box (5) and the melting chamber are the same, the isolation valve plate (4) opens the sealing plate. Under the action of the straight guide rail drive mechanism (1), the outer shaft first moves to the position close to the crucible, and then under the action of the central shaft drive mechanism (3), the central shaft pushes the raw material into the crucible. After that, the central shaft drive mechanism (3) and the straight guide rail drive mechanism (1) move straight back one after another. After the central shaft drive device (6) is completed, the isolation valve plate (4) is reset, and the horizontal feeding box (5) and the melting chamber are isolated again. When transporting the crucible, the horizontal crucible exchange mechanism assembly is pre-installed at the end of the central shaft drive device (6) in the horizontal feeding box (5). Then, the crucible is fitted on the outside of the mechanism assembly. The crucible is fixed on the mechanism assembly by the action of the second cylinder (21) of the crucible support mechanism (2), and its position is directly opposite and close to the top of the central shaft. Then, the crucible is transported to the preset position in the melting chamber by the action of the straight guide rail drive mechanism (1) and the central shaft drive mechanism (3). Then, the crucible is released by the action of the cylinder of the crucible support mechanism (2). Under the successive action of the straight guide rail drive mechanism (1) and the central shaft drive mechanism (3), the horizontal crucible exchange mechanism assembly is transported to the initial position and can then be disassembled.

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