CN219093566U

CN219093566U - Overturning and stripping machine for stripping sand cores

Info

Publication number: CN219093566U
Application number: CN202223002837.9U
Authority: CN
Inventors: 李明波
Original assignee: Qingdao Sanjun Casting Co ltd
Current assignee: Qingdao Sanjun Casting Co ltd
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2023-05-30
Anticipated expiration: 2032-11-10

Abstract

The utility model discloses a turnover stripping machine for stripping sand cores, which comprises a mounting frame, core box side plates and a core box bottom plate, wherein the lower end of the core box bottom plate is fixedly connected with a fixed frame, a stripping mechanism for stripping sand cores is arranged on the mounting frame and comprises a mounting frame which is slidably connected with the inner walls of the mounting frame, both inner walls of the mounting frame are rotatably connected with the side walls of the adjacent core box bottom plates through rotating rods, the inner walls of the mounting frame are fixedly connected with a first motor, and an output shaft of the first motor is connected with the adjacent rotating rods through a transmission mechanism. According to the utility model, the demolding mechanism is arranged, and the bottom plate of the core box can be overturned before ejection of the sand core, so that the ejector pin does not need to bear the weight of the sand core in the moving process, the ejector pin is prevented from being broken due to long-time bearing of pressure, and the service life of the ejector pin is prolonged.

Description

Overturning and stripping machine for stripping sand cores

Technical Field

The utility model relates to the technical field of sand core stripping devices, in particular to a turnover stripping machine for sand core stripping.

Background

The sand core is a material for manufacturing the core in casting production, and consists of casting sand, molding sand binder and the like, and the sand core needs to be used in a sand core box in the production process.

The utility model discloses a sand core stripping device for CN207464143U, including the chassis, the core box, roof and lifter, the core box is located on the chassis, the lifter is located the core box below, be equipped with a plurality of bottom surface holes on the core box bottom surface, the roof is located between lifter and the core box, and roof and chassis swing joint, the roof can go up and down on the chassis promptly, the device is released the sand core through the vertical removal of lifter, but the lifter needs to bear the weight of sand core at ejecting in-process, frequent ejection is a serious test to the lifter, it takes place the rupture condition easily, influence the life of lifter, therefore, need design a upset lifter for sand core stripping to solve above-mentioned problem.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a turnover stripping machine for stripping a sand core, which can turn over a bottom plate of a core box before ejection of the sand core through a stripping mechanism, so that a thimble does not need to bear the weight of the sand core in the moving process, thereby avoiding the thimble from being broken due to long-time bearing pressure, and further prolonging the service life of the thimble.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a upset stripping machine for psammitolite stripping, includes mounting bracket, core box curb plate and core box bottom plate, core box bottom plate lower extreme fixedly connected with fixed frame, be equipped with the demoulding mechanism that is used for the psammitolite drawing of patterns on the mounting bracket, demoulding mechanism includes the installing frame of sliding connection at the mounting bracket inner wall, two inner walls of installing frame all rotate with adjacent core box bottom plate lateral wall through the dwang and are connected, the first motor of installing frame inner wall fixedly connected with, the output shaft of first motor passes through drive mechanism and is connected with adjacent dwang, mounting bracket lower extreme fixedly connected with second motor, the output shaft fixedly connected with reciprocating screw of second motor, reciprocating screw upper end runs through the installing frame lower extreme, two fixedly connected with pneumatic cylinders in the fixed frame the pneumatic cylinder output fixedly connected with mounting panel, a plurality of thimble of mounting panel upper end fixedly connected with, be equipped with the derivation mechanism that is used for deriving the psammitolite on the mounting bracket.

Preferably, the guiding mechanism comprises a plurality of electric push rods at the lower end of the mounting frame, and a material guiding plate is commonly mounted at the upper ends of the electric push rods.

Preferably, a plurality of buffer springs are arranged at the upper end of the material guiding plate, and a buffer plate is arranged at the upper ends of the buffer springs.

Preferably, the transmission mechanism comprises a driving shaft fixedly connected to an output shaft of the first motor, a first gear is fixedly connected to the side wall of the driving shaft, a second gear is fixedly connected to the side wall of the rotating rod, and the first gear is meshed with the second gear.

Preferably, the bottom fixedly connected with dead lever in the mounting bracket, the dead lever upper end runs through the mounting frame lower extreme.

Preferably, the cross section of the installation frame is U-shaped, a control panel is installed on the side wall of the installation frame, and a plurality of supporting legs are fixedly connected to the lower end of the installation frame.

The utility model has the following beneficial effects:

1. the device is provided with the demoulding mechanism, the bottom plate of the core box can be overturned before ejection of the sand core, the sand core is pushed out by the downward movement of the ejector pin, and the ejector pin does not need to bear the weight of the sand core in the moving process, so that the ejector pin is prevented from being broken due to long-time bearing pressure, and the service life of the ejector pin is prolonged;

2. this device has set up export the mechanism, and before the psammitolite was released, the buffer board was close core box bottom plate lower extreme, and the psammitolite released the back and falls on the buffer board, and a plurality of buffer springs offset the impact force through compression deformation, and the psammitolite is finally discharged along the stock guide inclined plane, does not need artificial catching the psammitolite in core box bottom plate below, and then has improved the practicality of device, has still avoided the hard landing of psammitolite simultaneously, and then has improved the quality after the psammitolite ejection of compact.

Drawings

FIG. 1 is a schematic diagram of a overturn mold stripping machine for stripping sand cores according to the present utility model;

FIG. 2 is a front view of FIG. 1;

fig. 3 is a schematic diagram of a core box bottom plate of a overturn mold stripping machine for stripping sand cores after overturn and descent.

In the figure: 1 mounting frame, 2 mounting frames, 3 reciprocating screw rods, 4 rotating rods, 5 first motors, 6 first gears, 7 second gears, 8 core box side plates, 9 core box bottom plates, 10 ejector pins, 11 hydraulic cylinders, 12 fixing rods, 13 second motors, 14 supporting rods, 15 material guide plates, 16 buffer springs, 17 buffer plates, 18 electric push rods and 19 control panels.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-3, a upset stripping machine for sand core stripping, including mounting bracket 1, core box curb plate 8 and core box bottom plate 9, core box bottom plate 9 lower extreme fixedly connected with fixed frame, be equipped with the demoulding mechanism that is used for the sand core drawing of patterns on the mounting bracket 1, demoulding mechanism includes the erection frame 2 of sliding connection at mounting bracket 1 inner wall, erection frame 2 both inner walls all rotate with adjacent core box bottom plate 9 lateral wall through dwang 4 and are connected, the first motor 5 of erection frame 2 inner wall fixedly connected with (servo motor, its output can auto-lock), the output shaft of first motor 5 is connected with adjacent dwang 4 through drive mechanism, mounting bracket 1 lower extreme fixedly connected with second motor 13 (servo motor), the output shaft fixedly connected with reciprocating screw 3 of second motor 13, reciprocating screw 3 upper end runs through erection frame 2 lower extreme, the fixedly connected with two pneumatic cylinders 11 in the bottom of fixed frame, two pneumatic cylinders 11 output fixedly connected with mounting panel, mounting panel upper end fixedly connected with a plurality of thimble 10.

The guide mechanism for guiding out the sand core is arranged on the mounting frame 1, the guide mechanism comprises a plurality of electric push rods 18 at the lower end of the mounting frame 1, and the upper ends of the electric push rods 18 are jointly provided with a guide plate 15.

In the utility model, the upper end of the material guiding plate 15 is provided with a plurality of buffer springs 16, the upper ends of the plurality of buffer springs 16 are jointly provided with the buffer plate 17, and the arrangement of the buffer plate 17 can prevent the sand core from being in hard contact with the material guiding plate 15.

The transmission mechanism comprises a driving shaft fixedly connected to an output shaft of the first motor 5, a first gear 6 is fixedly connected to the side wall of the driving shaft, a second gear 7 is fixedly connected to the side wall of the rotating rod 4, and the first gear 6 is meshed with the second gear 7.

In the utility model, the bottom in the mounting frame 1 is fixedly connected with the fixing rod 12, the upper end of the fixing rod 12 penetrates through the lower end of the mounting frame 2, and the fixing rod 12 limits the mounting frame 2, so that the mounting frame 2 can only move vertically.

In the utility model, the section of the mounting frame 2 is U-shaped, openings are arranged in the front and the rear of the mounting frame 1, a control panel 19 is arranged on the side wall of the mounting frame 1, and a plurality of supporting legs are fixedly connected to the lower end of the mounting frame 1.

When the sand core is used, after the sand core is formed by the core box side plate 8 and the core box bottom plate 9, the core box side plate 8 is taken down, the second motor 13 is started, the output shaft of the second motor 13 drives the reciprocating screw rod 3 to rotate, under the limit of the fixed rod 12, the mounting frame 2 moves upwards, the distance between the mounting frame 2 and the buffer plate 17 is increased, then the first motor 5 is started, the output shaft of the first motor 5 drives the driving shaft to rotate, the driving shaft drives the rotating rod 4 through the meshing of the first gear 6 and the second gear 7, so that the core box bottom plate 9 is overturned, the second motor 13 is started again, the overturned core box bottom plate 9 moves downwards, the two hydraulic cylinders 11 are started, the output ends of the hydraulic cylinders 11 extend and push the plurality of ejector pins 10 to push the sand core in the core box bottom plate 9 downwards, after the sand core box bottom plate 9 is connected, the core box bottom plate 9 moves upwards to overturn, the core box bottom plate 9 moves downwards to reset after the overturning, the downward movement of the ejector pins 10 can be pushed out of the sand core through the downward movement in the process, the ejector pins 10 do not need to bear the weight of the sand core in the movement process, and the ejector pins 10 are prevented from bearing the weight of the sand core in the process to bear pressure for a long time;

in addition, before the psammitolite is released, start a plurality of electric putter 18, the output of electric putter 18 stretches for buffer board 17 is close core box bottom plate 9 lower extreme, and the psammitolite falls on buffer board 17, and a plurality of buffer springs 16 offset the impact through compression set, and the psammitolite is finally discharged along stock guide 15 inclined plane, need not the artificial psammitolite of catching below core box bottom plate 9, and then has improved the practicality of device.

The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the practical concept thereof, can be replaced or changed equally within the scope of the present utility model.

Claims

1. The utility model provides a upset stripping machine for psammitolite drawing of patterns, includes mounting bracket (1), core box curb plate (8) and core box bottom plate (9), a serial communication port, core box bottom plate (9) lower extreme fixedly connected with fixed frame, be equipped with the demoulding mechanism that is used for the psammitolite drawing of patterns on mounting bracket (1), demoulding mechanism includes installing frame (2) of sliding connection at mounting bracket (1) inner wall, two inner walls of installing frame (2) all rotate through dwang (4) and adjacent core box bottom plate (9) lateral wall and are connected, first motor (5) of installing frame (2) inner wall fixedly connected with, the output shaft of first motor (5) is connected with adjacent dwang (4) through drive mechanism, the output shaft fixedly connected with reciprocating lead screw (3) of mounting bracket (1) lower extreme fixedly connected with second motor (13), reciprocating lead screw (3) upper end run through installing frame (2) lower extreme, two pneumatic cylinders (11) of fixedly connected with bottom plate, two pneumatic cylinders (11) output fixedly connected with top plate (10) are used for leading out on the mounting bracket (1), many ejector pin fixedly connected with mounting bracket (10.

2. The turnover mould stripping machine for sand core mould stripping according to claim 1, characterized in that the guiding mechanism comprises a plurality of electric push rods (18) at the lower end of the mounting frame (1), and a material guiding plate (15) is commonly installed at the upper ends of the electric push rods (18).

3. The overturning and demolding machine for demolding sand cores according to claim 2, wherein a plurality of buffer springs (16) are arranged at the upper end of the material guiding plate (15), and a buffer plate (17) is arranged at the upper ends of the buffer springs (16) together.

4. A roll-over pattern drawing machine for sand core pattern drawing according to claim 3, characterized in that the transmission mechanism comprises a driving shaft fixedly connected with an output shaft of the first motor (5), a first gear (6) is fixedly connected with the side wall of the driving shaft, a second gear (7) is fixedly connected with the side wall of the rotating rod (4), and the first gear (6) is meshed with the second gear (7).

5. The overturning and demolding machine for sand core demolding according to claim 4, wherein a fixing rod (12) is fixedly connected to the inner bottom of the mounting frame (1), and the upper end of the fixing rod (12) penetrates through the lower end of the mounting frame (2).

6. The overturning and demolding machine for sand core demolding according to claim 5, wherein the section of the mounting frame (2) is U-shaped, a control panel (19) is mounted on the side wall of the mounting frame (1), and a plurality of supporting legs are fixedly connected to the lower end of the mounting frame (1).