CN114700460B

CN114700460B - Movable self-discharging sand hopper device

Info

Publication number: CN114700460B
Application number: CN202210225657.2A
Authority: CN
Inventors: 王磊; 周春林; 姚流波; 张宏伟
Original assignee: Wuhu Honghu Material Technology Co ltd
Current assignee: Wuhu Honghu Material Technology Co ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2023-05-26
Anticipated expiration: 2042-03-09
Also published as: CN114700460A

Abstract

The invention provides a movable self-unloading sand hopper device, which comprises a sand hopper, wherein a lifting travelling crane is arranged above the sand hopper, a lifting ring is arranged on the outer side wall of the sand hopper, the lifting travelling crane is connected with the lifting ring through a steel rope to lift the sand hopper, and a discharging pipe is arranged at the lower end of the sand hopper; the discharging pipe lower extreme is equipped with first discharge gate, and first discharge gate downside is equipped with first apron, and discharging pipe lower extreme side is equipped with the second discharge gate, and the second discharge gate inboard is equipped with the second apron, is equipped with switching mechanism between first apron and the second apron. According to unloading user demand, switch the discharge gate of difference on the discharging pipe through shifter to make the sand carry out the ejection of compact to different directions, reduce the accumulation of sand ejection of compact, reduce follow-up manual operation, be applicable to in the production.

Description

Movable self-discharging sand hopper device

Technical Field

The invention relates to the technical field of die casting, in particular to a movable self-discharging sand hopper device.

Background

In the sand casting process, firstly, a lost foam is placed in a casting box, sand is added into the casting box, so that the lost foam is completely covered by the sand, a flow guide column of the lost foam is left on the surface of the sand, then molten iron is injected from the position of the flow guide column, the lost foam is melted, the space where the lost foam is located is occupied by the molten iron, and the mould is formed after cooling. In the dry sand full mold casting process, sand in a sand hopper needs to be guided into a casting box, the existing sand falling hopper is used for vertically discharging to a point in the sand falling process, the stacking of materials is easy to cause, and operators are required to adjust all the time, so that the uniformity of discharging all the places is guaranteed. Patent number CN104815952a discloses a layering sand flowing device for resin sand molding, through setting up rotary mechanism that can rotate at the sand hopper lower extreme discharge gate, and the rotary mechanism lower extreme passes through quick-operation joint and connects sand conveying hose, drive sand conveying hose adjustment direction through rotating rotary mechanism, thereby carry out the unloading to different directions, but this mechanism can only carry out the side ejection of compact, can not vertical ejection of compact, lead to sand hopper below and sand hopper side's ejection of compact uneven distribution, need the manual work to handle piled up material, thereby reduce piling up of material, make material distribution even, lead to manual operation increase, reduction in production efficiency. Therefore, this problem is to be solved.

Disclosure of Invention

The invention aims to provide a movable self-discharging sand hopper device, which is characterized in that different discharge ports are switched and opened by arranging a switching mechanism, and the discharge is carried out in different directions through the different discharge ports, so that the concentration of the discharge is effectively prevented, and the problems of concentration of the discharge and uneven material distribution in the background technology are solved.

The invention provides a movable self-unloading sand hopper device, which comprises a sand hopper, wherein a lifting travelling crane is arranged above the sand hopper, a lifting ring is arranged on the outer side wall of the sand hopper, the lifting travelling crane is connected with the lifting ring through a steel rope to lift the sand hopper, and a discharging pipe is arranged at the lower end of the sand hopper; the discharging pipe lower extreme is equipped with first discharge gate, and first discharge gate downside is equipped with first apron, and discharging pipe lower extreme side is equipped with the second discharge gate, and the second discharge gate inboard is equipped with the second apron, is equipped with switching mechanism between first apron and the second apron.

The further improvement is that: the upper end of the discharging pipe is provided with an electric discharging valve.

The further improvement is that: the switching mechanism comprises a mounting plate, a connecting frame, a driving shaft and a driving cylinder; the mounting plate is arranged in the middle of the bottom end of the discharging pipe, the driving cylinder is arranged on the lower side of the mounting plate, the driving shaft longitudinally penetrates through the middle of the mounting plate to be movably arranged, the lower end of the driving shaft is connected with the output end of the driving cylinder, the connecting frame is connected to the upper end of the driving shaft, and the driving cylinder drives the driving shaft to move up and down.

The further improvement is that: the first apron is equipped with more than one and around setting up at the mounting panel lower extreme side through the hinge, and the second apron is connected in the link outside.

The further improvement is that: and a linkage rod is arranged between the lower side of the first cover plate and the lower end of the driving shaft, and the end part of the linkage rod is respectively connected with the first cover plate and the driving shaft through hinges.

The further improvement is that: the mounting panel side is equipped with the connecting rod, and the mounting panel passes through the connecting rod erection joint in the discharging pipe.

The further improvement is that: the inner side wall of the discharging pipe is provided with a sliding groove corresponding to the upper side of the second discharging hole, and the second cover plate is movably arranged in the sliding groove.

The further improvement is that: the guide sleeve is arranged in the middle of the mounting plate, the driving shaft penetrates through the mounting plate through the guide sleeve, and the sealing ring is arranged in the guide sleeve.

The further improvement is that: the outside of the second discharge hole is provided with a material guiding inclined plate which is of a telescopic structure.

The invention has the beneficial effects that: 1. according to the invention, the plurality of discharge holes are arranged for discharging, so that the discharging efficiency is improved, the existing discharge mechanisms are all used for discharging through one discharge hole, and the discharging direction cannot be freely switched, so that the discharging is concentrated and piled up; this application is through setting up the discharge gate in a plurality of different positions to set up the apron on the discharge gate, set up shifter through between the apron, control the apron through shifter, the apron switches control that opens and shuts to the discharge gate, thereby makes the material switch the discharge gate ejection of compact, the effectual accumulation that prevents the material ejection of compact has improved ejection of compact distribution's homogeneity.

2. According to the invention, the side edge of the mounting plate is connected with the first cover plate through the hinge, the first cover plate is used for controlling the opening and closing of the first discharge port through overturning, and when the first discharge port does not discharge, the first cover plate is overturned upwards to seal the first discharge port; when the first discharge port discharges, the first cover plate is turned downwards to protect the driving cylinder at the lower side of the mounting plate, so that the influence on the driving cylinder during sand discharge is effectively prevented, and the service life of the driving cylinder is prolonged.

3. According to the invention, the guide sleeve is arranged on the mounting plate, the driving shaft moves in a guiding way through the guide sleeve, the position deviation in the moving process is reduced, the sealing ring is arranged in the guide sleeve, and the sealing is carried out through the sealing ring, so that the gap between the driving shaft and the guide sleeve is reduced, and the sealing performance is improved.

4. According to the invention, the material guiding inclined plate is arranged at the outer side of the second discharging hole, after the material is discharged through the second discharging hole, the material is guided through the material guiding inclined plate, the material guiding inclined plate adopts a telescopic structure, and the length of the material guiding inclined plate is adjusted, so that the discharging distance is adjusted, the concentrated accumulation of the material is further reduced, the material discharging is more dispersed, and the material discharging is more uniform.

5. According to the invention, the lifting rings are arranged on the outer side edges of the sand hopper, and the sand hopper is lifted and moved by the lifting travelling crane, so that flexible operation can be conveniently performed in a limited workshop space, the convenience of operation is improved, and the occupied space of equipment is reduced.

Drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

FIG. 2 is a schematic view of a discharge pipe structure when a first discharge port is opened

FIG. 3 is a schematic view of the structure of the discharge pipe when the second discharge port is opened.

Fig. 4 is a schematic view of the first cover plate deployment configuration.

Fig. 5 is a schematic view of a first cover stowing structure.

Wherein: 1. a sand hopper; 2. hoisting a crane; 3. a hanging ring; 4. a discharge pipe; 5. a first discharge port; 6. a first cover plate; 7. a second discharge port; 8. a second cover plate; 9. an electric discharge valve; 10. a mounting plate; 11. a connecting rod; 12. a material guiding sloping plate; 13. a sliding groove; 14. a connecting frame; 15. a drive shaft; 16. a driving cylinder; 17. a linkage rod; 18. a guide sleeve.

Description of the embodiments

The present invention will be further described in detail with reference to examples, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.

As shown in fig. 1, this embodiment provides a portable self-discharging sand hopper device, including sand hopper 1, sand hopper 1 top is equipped with hoist and mount driving 2, is equipped with rings 3 on the sand hopper 1 lateral wall, and the steel cable lower extreme can be dismantled with rings 3 and be connected, hoist and mount driving 2 hoist and mount sand hopper 1 through the steel cable, make sand hopper 1 can remove.

The lower extreme of sand hopper 1 is equipped with discharging pipe 4, and the sandy soil in the sand hopper 1 goes out the ejection of compact through discharging pipe 4, and discharging pipe 4 upper end is equipped with electronic bleeder valve 9, through the ejection of compact of the control bleeder valve 9 control discharging pipe 4.

The bottom end of the discharging pipe 4 is provided with a first discharging hole 5, the lower side of the first discharging hole 5 is provided with a first cover plate 6, and the first cover plate 6 is used for switching on and off the first discharging hole 5; the side edge of the lower end of the discharging pipe 4 is provided with four second discharging holes 7, the second discharging holes 7 are equidistantly arranged around the side edge of the discharging pipe 4, the outer side of the second discharging hole 7 is provided with a guiding inclined plate 12, the guiding inclined plate 12 is a telescopic mechanism, and sand is guided to move along the guiding inclined plate 12 after being discharged from the second discharging hole 7; the second discharge gate 7 inboard is equipped with second apron 8, and the second apron 8 activity sets up in sliding tray 13 corresponding second discharge gate 7 upside on discharging pipe 4 inside wall, and second apron 8 switches second discharge gate 7.

A switching mechanism is arranged between the first cover plate 6 and the second cover plate 8, and the first cover plate 6 and the second cover plate 8 are driven to move through the switching mechanism, so that the first discharge hole 5 and the second discharge hole 7 are switched.

The switching mechanism comprises a mounting plate 10, a connecting frame 14, a driving shaft 15 and a driving cylinder 16; the mounting panel 10 sets up in the middle of discharging pipe 4 bottom, and mounting panel 10 side is equipped with connecting rod 11, and connecting rod 11 is equipped with a plurality of, and connecting rod 11 centers on mounting panel 10 upper end side setting, and mounting panel 10 passes through connecting rod 11 erection joint in discharging pipe 4, and drive shaft 15 activity sets up in the middle of mounting panel 10, is equipped with uide bushing 18 in the middle of the mounting panel 10, and drive shaft 15 passes mounting panel 10 from down upwards in the centre through uide bushing 18, is equipped with the sealing washer in the uide bushing 18, and the sealing washer adopts graphite packing, seals the gap between drive shaft 15 and the uide bushing 18 through the sealing washer.

The driving cylinder 16 is installed on the lower side of the mounting plate 10 through a bracket, the lower end of the driving shaft 15 is connected with the output end of the driving cylinder 16, and the driving cylinder 16 drives the driving shaft 15 to move up and down.

The connecting frame 14 is connected to the upper end of the driving shaft 15, the connecting frame 14 adopts a cross structure, the end part of the connecting frame 14 is arranged corresponding to the second discharge hole 7, the number of the second cover plates 8 is four corresponding to the second discharge hole 7, the upper side of the inner side wall of the discharge pipe 4 corresponding to the second discharge hole 7 is provided with a sliding groove 13, the second cover plates 8 are movably arranged in the sliding groove 13, and the second cover plates 8 are connected with the outer end part of the connecting frame 14; the connecting frame 14 drives the second cover plate 8 to slide up and down in the sliding groove 13 through the up-and-down movement of the driving shaft 15, so that the second discharge hole 7 is opened and closed.

The first cover plate 6 is provided with four sealing strips and is arranged on the side edge of the lower end of the mounting plate 10 in a surrounding mode through hinges, the first cover plate 6 is of a rectangular structure, and sealing strips are arranged on the side edges of the first cover plate 6. The first cover plate 6 is arranged around the side edge of the mounting plate 10 in a staggered way in a tail-to-tail manner; a linkage rod 17 is arranged between the lower side of the first cover plate 6 and the lower end of the driving shaft 15, and the end part of the linkage rod 17 is respectively connected with the first cover plate 6 and the driving shaft 15 through a hinge; the linkage rod 17 pushes the first cover plate 6 to turn over along the rotation direction of the hinge through the up-and-down movement of the driving shaft 15, so as to open and close the first discharge hole 5.

In actual production, the sand hopper 1 is used as a sand feeding device for modeling sand burying area operation in the lost foam casting process. When the sand control device is used, firstly, the sand hopper 1 is filled with sand through the sand treatment system, due to limited workshop space, the lifting crane 2 is connected with the lifting ring 3 on the outer side wall of the sand hopper 1 through a steel rope to lift the sand hopper 1, so that the sand control device is convenient for flexible operation on site, the sand hopper 1 is lifted above the molding sand box, the electric discharge valve 9 is instructed to be opened through the remote controller, and the sand is discharged from the sand hopper 1 through the discharge pipe 4; during discharging, the driving air cylinder 16 is not started, the first cover plate 6 keeps a downward overturning state, and sand vertically falls down from the first discharging hole 5. When the discharge port needs to be switched, the driving cylinder 16 is instructed to start by the remote controller, and the driving cylinder 16 drives the driving shaft 15 to move along the guiding direction of the guiding sleeve 18. In the moving process of the driving shaft 15, the first cover plate 6 is pushed to turn upwards through the linkage rod 17, and the first discharge port 5 is closed through the upward turning of the first cover plate 6; simultaneously drive second apron 8 through link 14 and upwards slide in sliding tray 13, along with the slip of second apron 8, make second discharge gate 7 open, the sand is discharged from second discharge gate 7 in, and the sand is discharged to the side along guide swash plate 12 from second discharge gate 7 to accomplish the switching of discharge gate ejection of compact, make sand ejection of compact distribution more even, reduced the concentrated accumulation of sand in the molding sand box.

Claims

1. The utility model provides a portable self-discharging sand hopper device, includes sand hopper (1), is equipped with hoist and mount driving (2) above sand hopper (1), is equipped with rings (3) on sand hopper (1) lateral wall, hoist and mount driving (2) are connected through steel cable and rings (3) and hoist and mount sand hopper (1), and sand hopper (1) lower extreme is equipped with discharging pipe (4); the method is characterized in that: the lower end of the discharging pipe (4) is provided with a first discharging hole (5), the lower side of the first discharging hole (5) is provided with a first cover plate (6), the side edge of the lower end of the discharging pipe (4) is provided with a second discharging hole (7), the inner side of the second discharging hole (7) is provided with a second cover plate (8), and a switching mechanism is arranged between the first cover plate (6) and the second cover plate (8); the switching mechanism comprises a mounting plate (10), a connecting frame (14), a driving shaft (15) and a driving cylinder (16); the utility model discloses a discharging pipe, including mounting panel (10), connecting frame (14), driving cylinder (16), connecting frame (14), connecting frame (16), connecting frame (15) are connected at driving (15) upper end, connecting frame (16) are connected at driving (15) upper and lower movement, connecting frame (16) are connected at the upper end of connecting frame, connecting frame (15) are connected at the upper end of connecting frame, connecting frame (14) are connected at the upper end of connecting frame, connecting frame (15) are connected at the upper end of connecting frame through connecting frame, connecting frame (4).

2. A mobile self-discharging sand hopper device as claimed in claim 1, wherein: an electric discharge valve (9) is arranged at the upper end of the discharge pipe (4).

3. A mobile self-discharging sand hopper device as claimed in claim 1, wherein: the first cover plate (6) is provided with more than one and is arranged at the side edge of the lower end of the mounting plate (10) in a surrounding way through a hinge, and the second cover plate (8) is connected at the outer side of the connecting frame (14).

4. A mobile self-discharging sand hopper device as claimed in claim 1, wherein: a linkage rod (17) is arranged between the lower side of the first cover plate (6) and the lower end of the driving shaft (15), and the end part of the linkage rod (17) is respectively connected with the first cover plate (6) and the driving shaft (15) through hinges.

5. A mobile self-discharging sand hopper device as claimed in claim 1, wherein: the side of the mounting plate (10) is provided with a connecting rod (11), and the mounting plate (10) is connected in the discharging pipe (4) through the connecting rod (11).

6. A mobile self-discharging sand hopper device as claimed in claim 1, wherein: a guide sleeve (18) is arranged in the middle of the mounting plate (10), the driving shaft (15) passes through the mounting plate (10) through the guide sleeve (18), and a sealing ring is arranged in the guide sleeve (18).

7. A mobile self-discharging sand hopper device as claimed in claim 1, wherein: the inner side wall of the discharging pipe (4) is provided with a sliding groove (13) corresponding to the upper side of the second discharging hole (7), and the second cover plate (8) is movably arranged in the sliding groove (13).

8. A mobile self-discharging sand hopper device as claimed in claim 1, wherein: the outer side of the second discharging hole (7) is provided with a material guiding inclined plate (12), and the material guiding inclined plate (12) is of a telescopic structure.