CN210023677U

CN210023677U - Top sand shooting upper box male die forming device

Info

Publication number: CN210023677U
Application number: CN201920339702.0U
Authority: CN
Inventors: 石宝; 王振江; 张继英
Original assignee: Hebei Zhong Bei Environmental Protection Technology Co Ltd
Current assignee: Hebei Zhong Bei Environmental Protection Technology Co Ltd
Priority date: 2019-03-18
Filing date: 2019-03-18
Publication date: 2020-02-07
Anticipated expiration: 2029-03-18

Abstract

The utility model relates to a top sand shooting upper box male die forming device, wherein an upper box top beam and a bottom beam are arranged at an upper and a lower interval, four forming guide pillars are fixedly arranged at four corners between the upper box top beam and the bottom beam to form a frame structure, a sand shooting barrel is fixedly arranged at the upper part of the four forming guide pillars, a lower die supporting plate is movably sleeved on the four forming guide pillars below the sand shooting barrel, and the lower die supporting plate is driven by an oil cylinder to move up and down; the lower die supporting plate is fixedly connected with a die fixing plate through four die fixing plate link rods, a die is fixedly arranged on the die fixing plate, a gate rod is arranged in the die, and the end part of the gate rod is fixedly arranged on the lower die supporting plate; the lower part of the mould is provided with a demoulding component, and a sand box is arranged between the mould and the sand shooting cylinder; a movable compaction unit is arranged between the upper part of the sand shooting barrel and the top beam of the upper box. The sand shooting, the forming and the demoulding are completed at the same station, the sand adding system and the sand box are not interfered with each other, the sand can be molded after the sand shooting is completed, the molding sand is vertically injected into the sand box from the top, the path is short, the resistance is small, and the horizontal distribution is uniform.

Description

Top sand shooting upper box male die forming device

Technical Field

The utility model belongs to the technical field of clay sand molding, specifically a sand cope punch forming device is penetrated at top.

Background

At present, clay sand automatic molding technology appears for decades, and with the guidance of continuously improved requirements of users, along with the development progress of technology and the continuous innovation of manufacturers, various featured hosts and production lines appear, and a KW line, a Disha line and a New east line which are widely used at home and abroad are typical representatives of the clay sand automatic molding technology.

The vertical parting molding machine in various molding machines has the characteristics of no sand box and high molding efficiency.

Various horizontal parting flaskless (slip flask) molding machines have the advantages of simple structure, wide adaptability and remarkable production efficiency, and particularly, the vertical sand shooting slip flask/slip flask molding technology developed domestically in recent two years solves the problems of low mold back compactness and low casting yield easily caused by horizontal sand shooting molding, and further expands the application range of the flaskless sand shooting molding.

The multi-contact static pressure automatic molding, particularly the multi-contact static pressure molding with a box is the best molding mode of product adaptability in a plurality of molding devices, the host and the production line are most complex in structure, no matter quantitative sand adding or airflow sand adding is adopted, sand filling and molding are completed by relative movement among a sand box, a sand filling device and a mold, sand filling, molding and even mold closing can not be realized at a fixed station like the non-box molding, the production rate is limited, the upper box can only be molded with an upward parting surface, mold closing is realized at other stations in a turnover way, the host is complex in structure, and a plurality of auxiliary devices are provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome prior art's weak point, penetrate the figurative high efficiency of sand and the automatic figurative high adaptability of multi-contact static pressure and have the case figurative sand-iron ratio little with the level, the advantage that the casting yield is high combines together, provides a sand punch moulding device on the top.

The utility model provides a its technical problem take following technical scheme to realize:

the utility model provides a sand is penetrated at top and punch forming device of case is gone up, its characterized in that: the upper box top beam and the bottom beam are arranged at intervals up and down, four forming guide pillars are fixedly arranged at four corners between the upper box top beam and the bottom beam to form a frame structure, sand shooting barrels are fixedly arranged at the upper parts of the four forming guide pillars, and the sand shooting barrels are communicated with an upper box sand tank arranged on the upper box top beam; four forming guide posts below the sand shooting barrel are movably sleeved with a lower die supporting plate, and the lower die supporting plate is driven by an oil cylinder to move up and down; the lower die supporting plate is fixedly connected with a die fixing plate through four die fixing plate link rods, a die is fixedly arranged on the die fixing plate, a gate rod is arranged in the die, and the end part of the gate rod is fixedly arranged on the lower die supporting plate; the lower part of the mould is provided with a demoulding component, and a sand box is arranged between the mould and the sand shooting cylinder; a movable compaction unit is arranged between the upper part of the sand shooting barrel and the top beam of the upper box.

And the die is connected with the die lower supporting plate through a plurality of die fixing plate supporting rods.

And the demolding assembly comprises a universal female die bottom plate, a demolding top plate and demolding guide rods, the universal female die bottom plate is arranged at the bottom of the mold, the upper ends of the three demolding guide rods are fixedly arranged at the lower end of the universal female die bottom plate at intervals, the three demolding guide rods are all movably sleeved on the lower mold supporting plate through guide sleeves, the demolding top plate is fixedly arranged at the lower ends of the three demolding guide rods at the lower end of the lower mold supporting plate, and the demolding top plate is connected with a demolding oil cylinder.

And the movable compaction unit comprises a pressure head mounting plate, a pressure rod plate, pressure head guide rods and a guide rod frame, wherein the four pressure head guide rods are arranged in the middle of the upper box top beam in a penetrating manner and can move up and down under the driving of the oil cylinder, the pressure head mounting plate is movably sleeved on the lower parts of the pressure head guide rods, the sand shooting distributor is fixedly arranged at the lower end of the pressure head mounting plate, and the pressure head is fixed at the lower end of the sand shooting distributor.

Moreover, a large sprue bush and a gas needle hole are arranged on the pressure head; and a pressure rod plate is arranged on the four pressure head guide rods above the pressure head mounting plate, a group of pressure rods are fixedly arranged at the lower end of the pressure rod plate, and through holes are formed in the pressure rods opposite to the pressure heads.

And the upper part of the pressure head guide rod is provided with an upper box sand tank.

The utility model has the advantages that:

1. the utility model discloses accomplish at same station and penetrate sand, shaping and drawing of patterns, add sand system and sand case mutually noninterfere, accomplish and penetrate sand can the die mould.

2. The molding sand of this device jets into the sand box perpendicularly from the top, and the way is short, and the resistance is little, and horizontal distribution is even.

3. The sand-jetting and sand-filling device is compact in advance, high in sand-filling speed, high in production efficiency, small in sand-using amount and attractive in forming, and the thickness of a sand mold can be adjusted according to needs.

4. The specially designed shape of the pressure head of the device ensures that the compression ratio of the molding sand in each area is similar, the molding hardness is uniform, the hardness after actual molding is similar, no sand scraping is needed before and after molding, and less scattered sand is generated;

5. this device adopts the supplementary drawing of patterns of hydraulic pressure, and the yield is high and can reduce the draft to reduce product weight and subsequent processing volume.

6. The pressure head of the device is provided with a sprue pit and an air hole needle, and the mould is formed by a sprue bar, a riser bar, a sprue, a riser and an air hole in one step.

7. The utility model discloses a shaping unit is four column press structures, and each action is by independent hydro-cylinder control, and pressure, speed and initial position are adjusted conveniently, and the simple structure is reliable and stable.

Drawings

FIG. 1 is a schematic view of the feeding position of the flask according to the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic view of the position of the present invention during sand shooting;

FIG. 4 is a sectional view taken along line B-B of FIG. 3;

fig. 5 is a schematic diagram of the position of the utility model after compression;

fig. 6 is a cross-sectional view taken along line C-C of fig. 5.

Reference numerals: 1 bottom beam, 2 die bottom plates, 3 die fixing plates, 4 dies, 6 die fixing plate link rods, 17 die fixing plate support rods, 18 universal die bottom plates, 19 gate rods, 20 ram mounting plates, 21 sand shooting distributors, 22 rams, 23 cope flask sand tanks, 24 ram plates, 25 rams, 26 ram guide rods, 27 cope flask top beams, 28 ram racks, 29 forming guide columns, 30 sand flasks, 31 sand shooting cylinders, 32 large sprue pits, 33 demolding guide rods and 34 demolding top plates.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments, which are illustrative, not restrictive, and the scope of the invention should not be limited thereto.

A top sand shooting upper box male die forming device is of a four-column type press structure, an upper box top beam 27 and a bottom beam 1 are arranged at intervals up and down, four forming guide pillars 29 are fixedly arranged at four corners between the upper box top beam and the bottom beam to form a basic frame structure, and the upper box top beam and the bottom beam are respectively used as mounting bases of all forming oil cylinders;

the upper parts of the four forming guide pillars are fixedly provided with sand shooting cylinders 31 which are communicated with an upper box sand tank 23 arranged on an upper beam top box; a lower die supporting plate 2 is movably sleeved on four forming guide columns below the sand shooting cylinder, the lower die supporting plate is driven by an oil cylinder (not shown in the figure) to move up and down, and the oil cylinder is arranged on an upper box top beam; the lower die supporting plate is fixedly connected with a die fixing plate 3 through four die fixing plate link rods 6, a die 4 is fixedly arranged on the die fixing plate, and the die is connected with the lower die supporting plate through a plurality of die fixing plate supporting rods 17; a gate bar 19 is arranged in the mould, the end part of the gate bar is fixedly arranged on the lower supporting plate of the mould, and the position of the gate bar is relatively fixed with the mould;

the lower part of the mold is provided with a demolding assembly, the demolding assembly comprises a universal female die bottom plate 18, a demolding top plate 34 and demolding guide rods 33, the universal female die bottom plate is arranged at the bottom of the mold, the lower end of the universal female die bottom plate is fixedly provided with the upper ends of three demolding guide rods at intervals, the three demolding guide rods are all movably sleeved on a mold lower supporting plate through guide sleeves, the demolding top plate is fixedly arranged at the lower ends of the three demolding guide rods at the lower end of the mold lower supporting plate, the demolding top plate is connected with a demolding oil cylinder (not shown in the figure), and.

A sand box 30 is arranged between the mould and the sand shooting barrel.

A movable compaction unit is arranged between the upper part of the sand shooting barrel and the upper box top beam and comprises a pressure head mounting plate 20, a pressure rod plate 24, four pressure head guide rods 26 and a guide rod frame 28, the four pressure head guide rods are arranged in the middle of the upper box top beam 27 in a penetrating manner and can move up and down under the driving of an oil cylinder, the pressure head mounting plate is movably sleeved on the lower parts of the pressure head guide rods, a sand shooting distributor 21 is fixedly arranged at the lower end of the pressure head mounting plate, a pressure head 22 is fixed at the lower end of the sand shooting distributor, and a large sprue pit 32 and a gas needle hole are arranged; four pressure head guide rods above the pressure head mounting plate are provided with pressure rod plates 24, the lower ends of the pressure rod plates are fixedly provided with a group of pressure rods 25, and the pressure rods opposite to the pressure heads are provided with through holes.

And the sprue, the riser and the air holes are formed at one time.

The action process is briefly described as follows:

before molding, the flask 30 is fed between the mold 4 and the shooting pot 31 by a loading and unloading mechanism (not shown) with the center thereof aligned;

a bottom oil cylinder (not shown in the figure) drives the lower mold supporting plate 2, the gate rod, the mold fixing plate 3 and the mold 4 to ascend, supports the sand box 30 until the upper surface of the sand box contacts with the lower surface of the sand shooting cylinder 31, simultaneously, the universal female mold bottom plate 18 is driven by the oil cylinder to ascend to a set position, the universal female mold bottom plate 18, the mold 4, the mold fixing plate 3, the sand shooting cylinder 31, the pressure head 22, the large gate pit 32 and the gate rod 19 form a closed space together;

the molding sand in the upper box sand tank 23 reaches the upper part of the pressure head 22 from the top through the sand injection distributor 21, and is injected into the sand box through holes uniformly distributed on the pressure head, the profiling oil cylinder (not shown) pushes the pressure rod plate 24 and drives the pressure rod 25 to descend, and then the pressure head 22 is driven to press downwards to complete the molding;

after the molding is finished, the pressure head rises, the universal female die bottom plate 18 is kept still, a bottom oil cylinder (not shown in the figure) drives the lower die supporting plate 2, the gate rod 19, the die fixing plate 3 and the die 4 to descend, the molding box and the molding sand are supported by the universal female die bottom plate, the die does not bear the pulling force generated by the demolding, and the active demolding is realized, and the hanging sand is not broken.

The pressure head position during sand shooting can be adjusted through PLC control system's touch-sensitive screen to change the volume size of adding sand, adapt to different product needs.

The demoulding and moulding box is moved out of the moulding position by the loading and unloading mechanism and is simultaneously fed into a new moulding box.

Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims, and therefore, the scope of the present invention is not limited to the disclosure of the embodiments and the accompanying drawings.

Claims

1. The utility model provides a sand is penetrated at top and punch forming device of case is gone up, its characterized in that: the upper box top beam and the bottom beam are arranged at intervals up and down, four forming guide pillars are fixedly arranged at four corners between the upper box top beam and the bottom beam to form a frame structure, sand shooting barrels are fixedly arranged at the upper parts of the four forming guide pillars, and the sand shooting barrels are communicated with an upper box sand tank arranged on the upper box top beam; four forming guide posts below the sand shooting barrel are movably sleeved with a lower die supporting plate, and the lower die supporting plate is driven by an oil cylinder to move up and down; the lower die supporting plate is fixedly connected with a die fixing plate through four die fixing plate link rods, a die is fixedly arranged on the die fixing plate, a gate rod is arranged in the die, and the end part of the gate rod is fixedly arranged on the lower die supporting plate; the lower part of the mould is provided with a demoulding component, and a sand box is arranged between the mould and the sand shooting cylinder; a movable compaction unit is arranged between the upper part of the sand shooting barrel and the top beam of the upper box.

2. The top shooting cope punch molding apparatus as claimed in claim 1, wherein: the die is connected with the die lower supporting plate through a plurality of die fixing plate supporting rods.

3. The top shooting cope punch molding apparatus as claimed in claim 1, wherein: the demolding assembly comprises a universal female die bottom plate, a demolding top plate and demolding guide rods, the universal female die bottom plate is installed at the bottom of a mold, the upper ends of three demolding guide rods are fixedly installed at the lower end of the universal female die bottom plate at intervals, the three demolding guide rods are all movably sleeved on a lower mold supporting plate through guide sleeves, the demolding top plate is fixedly installed at the lower ends of the three demolding guide rods at the lower end of the lower mold supporting plate, and the demolding top plate is connected with a demolding oil cylinder.

4. The top shooting cope punch molding apparatus as claimed in claim 1, wherein: the movable compaction unit comprises a pressure head mounting plate, a pressure rod plate, pressure head guide rods and a guide rod frame, wherein the four pressure head guide rods are arranged in the middle of the upper box top beam in a penetrating mode and can move up and down under the driving of an oil cylinder, the pressure head mounting plate is movably sleeved on the lower portions of the pressure head guide rods, a sand shooting distributor is fixedly mounted at the lower end of the pressure head mounting plate, and a pressure head is fixed at the lower end of the sand shooting distributor.

5. The top shooting cope punch molding apparatus as claimed in claim 1, wherein: the pressure head is provided with a large sprue bush and a gas needle hole; and a pressure rod plate is arranged on the four pressure head guide rods above the pressure head mounting plate, a group of pressure rods are fixedly arranged at the lower end of the pressure rod plate, and through holes are formed in the pressure rods opposite to the pressure heads.