CN221047236U

CN221047236U - Hot core box core shooter with negative pressure pumping component

Info

Publication number: CN221047236U
Application number: CN202323028261.8U
Authority: CN
Inventors: 胡安军; 宁世庆; 马鹏飞; 滕驰
Original assignee: Wuhu Chengtuo Automotive Parts Co ltd
Current assignee: Wuhu Chengtuo Automotive Parts Co ltd
Priority date: 2023-11-09
Filing date: 2023-11-09
Publication date: 2024-05-31
Anticipated expiration: 2033-11-09

Abstract

The utility model belongs to the technical field of hot core box core shooters, and aims to solve the problems that cleaning and recycling of redundant sand above a module are difficult to achieve when a solidified sand core is fed, and particularly relates to a hot core box core shooter with a negative pressure pumping component.

Description

Hot core box core shooter with negative pressure pumping component

Technical Field

The utility model relates to the technical field of hot core box core shooting machines, in particular to a hot core box core shooting machine with a negative pressure pumping component.

Background

With the improvement of the product quality requirements and the continuous improvement of the production process in the market, the core making process of the precoated sand hot core box is widely applied, namely, an electric heating pipe or other heating devices are arranged on a die, sand is blown into a die cavity and is hardened and compacted into a core under the action of high air pressure provided by the electric heating pipe and a sand cylinder, the traditional sand core has enough strength, accurate size and smooth surface, but the existing core shooter has difficulty in realizing the accurate size and smooth surface of the sand core, and the sand core curing speed is slow;

According to the patent document of the patent number CN208146871U, the negative pressure extractor is arranged, so that the forming speed of the die can be increased, the working efficiency is improved, and the produced die has the characteristics of high dimensional accuracy, smooth surface, small casting deformation and high yield, thereby achieving the purpose of high product quality; however, when the sand is sprayed into the core box through the spraying head, a small amount of sand can remain above the two modules, and the upper parts of the two modules are required to be cleaned by external equipment in the later period, so that the upper parts of the modules are difficult to automatically clean when the solidified sand cores are discharged, and the recovery of the redundant sand is finished;

in view of the above technical drawbacks, a solution is now proposed.

Disclosure of utility model

The utility model aims to provide a hot core box core shooting machine with a negative pressure pumping component, which solves the problems that the cleaning of the upper part of a module and the recovery of redundant sand materials are difficult to finish when the solidified sand cores are blanked.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the hot core box core shooter with the negative pressure pumping component comprises a base, wherein a bracket is fixedly arranged above the base, an ejector is fixedly connected to the top end of the bracket, an ejector head is fixedly connected to the bottom end of the ejector, two modules are arranged right below the ejector head, first cylinders for opening and closing a driving module are fixedly arranged on one sides of the two modules opposite to each other, cleaning mechanisms for cleaning the tops of the two modules are arranged on the outer sides of the two modules, and a recovery mechanism is arranged below the two modules;

The cleaning mechanism comprises two limiting plates fixedly connected with the support, the two limiting plates are symmetrically arranged relative to the central line of the support, a movable column is slidably arranged in the limiting plates, one end of the movable column, which is close to the module, is fixedly connected with the module, a sealing cavity is slidably arranged on the outer wall of the movable column, which is far away from the module, and a piston head is fixedly connected with the end of the movable column, the piston head is slidably connected with the sealing cavity, the output end of the sealing cavity is fixedly connected with a connecting pipe, the output end of the connecting pipe penetrates through the support and extends to the upper side of the module, and is fixedly connected with a blowing head, and the blowing head corresponds to the top of the module.

Further, a first one-way valve is arranged on the outer wall of the connecting pipe, an air inlet pipe is fixedly connected to the outer wall below the sealing cavity, and a second one-way valve is fixedly arranged on the outer wall of the air inlet pipe.

Further, retrieve the mechanism including seting up the unloading groove on the support outer wall, it is provided with the recovery frid to rotate through first spacing post on the outer wall of unloading groove, the base is located and is provided with the second cylinder on the outer wall that the unloading groove was kept away from to the recovery frid, the top fixedly connected with U-shaped board of second cylinder, all seted up the spout on the both sides outer wall of U-shaped board, the inside sliding connection of spout has the slider, two it is connected with the spacing post of second to rotate through the bearing between the slider, fixedly connected with gyro wheel on the outer wall of the spacing post of second.

Further, the gyro wheel is in transmission cooperation with the recovery frid, elasticity is provided with thrust spring between the bottom of spout and the bottom of slider, the recovery frid is close to fixedly on the outer wall of silo down and is provided with the filter screen, the base is located and has seted up the collection box on the outer wall of filter screen below.

Further, the support is fixedly arranged on the outer wall of the output end of the recovery groove plate and is provided with a belt conveyor, wherein the upper surface of one module is communicated with an exhaust connecting pipe, and the other end of the exhaust connecting pipe is connected with an exhaust negative pressure device.

Compared with the prior art, the utility model has the beneficial effects that:

According to the utility model, the solidified sand core falls to the upper part of the recovery groove plate through shrinkage of the two first cylinders, and when the solidified sand core impacts the recovery groove plate, the roller is pressed downwards, the sliding block slides in the sliding groove and presses the thrust spring downwards to play a role of buffering, in the process, the moving column pushes the inside of the sealing cavity, gas in the sealing cavity is discharged into the blowing head through the connecting pipe and then is blown out to the upper part of the module through the blowing head, the excessive sand above the module is blown out to the recovery groove plate to clean the excessive sand core, then the second cylinder stretches upwards, so that the solidified sand core and the excessive sand in the recovery groove plate move to one side of the belt conveyor, the excessive sand material falls into the recovery box through the filter plate to complete automatic recovery of the excessive sand material, and the solidified sand core enters the input end of the belt conveyor to be conveyed and discharged by the belt conveyor.

Drawings

For the convenience of those skilled in the art, the present utility model will be further described with reference to the accompanying drawings;

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a front view of the cleaning mechanism of the present utility model;

FIG. 3 is a front view of the recovery mechanism of the present utility model;

FIG. 4 is an enlarged schematic view of the structure of the area A in FIG. 3;

Fig. 5 is a perspective view of a U-shaped plate in the present utility model.

Reference numerals: 1. a bracket; 2. a base; 3. a negative pressure pumping device; 4. a module; 5. a first cylinder; 61. a moving column; 62. a limiting plate; 63. a piston head; 64. sealing the cavity; 65. a connecting pipe; 66. blowing heads; 7. an ejector; 81. discharging groove; 82. a first limit post; 83. a filter screen; 84. recovering the groove plate; 85. a recovery box; 86. a second cylinder; 87. a roller; 88. a U-shaped plate; 89. the second limit column; 810. a slide block; 811. a chute; 9. and a belt conveyor.

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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one:

As shown in fig. 1-5, the core shooter with the heat core box provided with the negative pressure pumping component comprises a base 2, wherein a bracket 1 is fixedly arranged above the base 2, the top end of the bracket 1 is fixedly connected with an ejector 7, the bottom end of the ejector 7 is fixedly connected with an ejector head, two modules 4 are arranged right below the ejector head, a first cylinder 5 for opening and closing a driving module 4 is fixedly arranged on one side of the two modules 4 opposite to each other, a cleaning mechanism for cleaning the top of the two modules 4 is arranged on the outer sides of the two modules 4, and a recovery mechanism is arranged below the two modules 4; specifically, the core box is positioned between the two modules 4, the connection relation and the function of the core box and the modules 4 are consistent with those in the document of patent number CN208146871U, a heater is arranged in the modules 4, and the core box is insulated at 160-180 ℃ through the arrangement of the heater, so that hardening is prevented;

The cleaning mechanism comprises two limiting plates 62 fixedly connected with the support 1, the two limiting plates 62 are symmetrically arranged relative to the central line of the support, a movable column 61 is slidably arranged in the limiting plates 62, one end of the movable column 61 close to the module 4 is fixedly connected with the module 4, a sealing cavity 64 is slidably arranged on the outer wall of the movable column 61 far away from the module 4, the end part of the movable column is fixedly connected with a piston head 63, the piston head 63 is slidably connected with the sealing cavity 64, the output end of the sealing cavity 64 is fixedly connected with a connecting pipe 65, the output end of the connecting pipe 65 penetrates through the support 1 to extend to the upper side of the module 4 and is fixedly connected with a blowing head 66, and the blowing head 66 corresponds to the top of the module 4; the moving column 61 is pushed to the inside of the sealing cavity 64, so that the gas in the sealing cavity 64 is discharged into the blowing head 66 through the connecting pipe 65, and then blown out to the upper side of the module 4 through the blowing head 66, and the excessive sand above the module 4 is blown out to the recovery groove plate 84.

The outer wall of the connecting pipe 65 is provided with a first one-way valve, the outer wall below the sealing cavity 64 is fixedly connected with an air inlet pipe, and the outer wall of the air inlet pipe is fixedly provided with a second one-way valve; specifically, the gas enters the seal chamber 64 through the gas inlet pipe and is discharged through the connection pipe 65.

Embodiment two:

As shown in fig. 1 and 3-5, the core shooter with a heat core box with a negative pressure pumping component provided by the embodiment is improved on the basis of embodiment 1, the recycling mechanism comprises a blanking groove 81 arranged on the outer wall of a bracket 1, a recycling groove plate 84 is rotatably arranged on the outer wall of the blanking groove 81 through a first limit post 82, a second cylinder 86 is arranged on the outer wall of the recycling groove plate 84 far away from the blanking groove 81, the top end of the second cylinder 86 is fixedly connected with a U-shaped plate 88, sliding grooves 811 are respectively arranged on the outer walls of two sides of the U-shaped plate 88, sliding blocks 810 are slidably connected in the sliding grooves 811, a second limit post 89 is rotatably connected between the two sliding blocks 810 through a bearing, and a roller 87 is fixedly connected on the outer wall of the second limit post 89.

The roller 87 is in transmission fit with the recovery groove plate 84, a thrust spring is elastically arranged between the bottom of the sliding groove 811 and the bottom of the sliding block 810, the recovery groove plate 84 is fixedly provided with a filter screen 83 on the outer wall close to the lower groove 81, and the recovery box 85 is arranged on the outer wall of the base 2 below the filter screen 83.

The outer wall of the bracket 1, which is positioned at the output end of the recovery groove plate 84, is fixedly provided with a belt conveyor 9, the upper surface of one module 4 is communicated with an exhaust connecting pipe, and the other end of the exhaust connecting pipe is connected with an exhaust negative pressure device 3; specifically, during the use, start and take out negative pressure ware 3, take out the negative pressure ware 3 through taking out and carry out the air pumping to the core box in, the unnecessary gas in the exhaust core box for the psammitolite shaping speed after the solidification improves its shaping quality.

The working process and principle of the utility model are as follows:

Firstly, the first air cylinders 5 push the two modules 4 to be close to each other, sand is sprayed into the core box through the sprayer 7 and the spraying heads at the bottom ends of the two modules to form solidified sand cores, then, the two first air cylinders 5 are contracted to enable the solidified sand cores to fall above the recycling groove plate 84, when the solidified sand cores strike the recycling groove plate 84, the rollers 87 are pressed downwards to enable the sliding blocks 810 to slide in the sliding grooves 811 and downwards to press the thrust springs to play a role of buffering, in the process, the moving columns 61 are pushed to the inside of the sealing cavity 64 to enable air in the sealing cavity 64 to be discharged into the blowing heads 66 through the connecting pipes 65 and blown out to the upper sides of the modules 4 through the blowing heads 66, the solidified sand cores above the modules 4 are blown out to the recycling groove plate 84, then, the second air cylinders 86 are stretched upwards to enable the solidified sand cores and the redundant sand cores located in the recycling groove plate 84 to move to one side of the belt conveyor 9, when the solidified sand cores move to the upper side, the redundant sand cores fall into the automatic box 85, the redundant sand cores are conveyed to the belt conveyor 9, and the redundant sand cores are conveyed to the lower than the solidified sand cores, and the redundant sand cores are conveyed to the belt conveyor 9.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims

1. The utility model provides a hot core box core shooting machine with take out negative pressure part, includes base (2), the top of base (2) is fixed to be provided with support (1), the top fixedly connected with sprayer (7) of support (1), its characterized in that, the bottom fixedly connected with of sprayer (7) sprays the head, be provided with two modules (4) under the head of spraying, two the first cylinder (5) that drive module (4) opened and shut are all fixed to one side that module (4) are on the back of the body, two the outside of module (4) is provided with the clean mechanism to its top, two the below of module (4) is provided with recovery mechanism;

The cleaning mechanism comprises two limiting plates (62) fixedly connected with a support (1), the two limiting plates (62) are symmetrically arranged relative to the central line of the support, a movable column (61) is slidably arranged in the limiting plates (62), one end of the movable column (61) close to a module (4) is fixedly connected with the module (4), a sealing cavity (64) is slidably arranged on the outer wall of the movable column (61) away from the module (4), the end part of the movable column is fixedly connected with a piston head (63), the piston head (63) is slidably connected with the sealing cavity (64), the output end of the sealing cavity (64) is fixedly connected with a connecting pipe (65), the output end of the connecting pipe (65) penetrates through the support (1) and extends to the upper side of the module (4) and is fixedly connected with a blowing head (66), and the blowing head (66) corresponds to the top of the module (4).

2. The core shooter of a hot core box with a negative pressure pumping component according to claim 1, wherein a first one-way valve is arranged on the outer wall of the connecting pipe (65), an air inlet pipe is fixedly connected to the outer wall below the sealing cavity (64), and a second one-way valve is fixedly arranged on the outer wall of the air inlet pipe.

3. The hot core box core shooter with negative pressure pumping components according to claim 1, wherein the recovery mechanism comprises a blanking groove (81) formed in the outer wall of a support (1), a recovery groove plate (84) is rotatably arranged on the outer wall of the blanking groove (81) through a first limit post (82), a second air cylinder (86) is arranged on the outer wall of the recovery groove plate (84) away from the blanking groove (81), a U-shaped plate (88) is fixedly connected to the top end of the second air cylinder (86), sliding grooves (811) are formed in the outer walls of two sides of the U-shaped plate (88), sliding blocks (810) are slidably connected in the sliding grooves (811), a second limit post (89) is rotatably connected between the two sliding blocks (810) through bearings, and idler wheels (87) are fixedly connected to the outer wall of the second limit post (89).

4. A core shooter with a heat core box and a negative pressure pumping component according to claim 3, characterized in that the roller (87) is in transmission fit with the recovery groove plate (84), a thrust spring is elastically arranged between the bottom of the sliding groove (811) and the bottom of the sliding block (810), a filter screen (83) is fixedly arranged on the outer wall of the recovery groove plate (84) close to the blanking groove (81), and a recovery box (85) is arranged on the outer wall of the base (2) below the filter screen (83).

5. A core shooter with a heat core box and a negative pressure pumping component according to claim 3, characterized in that the support (1) is fixedly provided with a belt conveyor (9) on the outer wall of the output end of the recovery groove plate (84), the upper surface of one module (4) is communicated with an air suction connecting pipe, and the other end of the air suction connecting pipe is connected with a negative pressure pumping device (3).