CN215544751U

CN215544751U - Full-automatic molding machine compaction mechanism

Info

Publication number: CN215544751U
Application number: CN202122040580.5U
Authority: CN
Inventors: 许明凯; 许德强
Original assignee: Quanzhou Dazzle Machinery Co ltd
Current assignee: Quanzhou Dazzle Machinery Co ltd
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2022-01-18
Anticipated expiration: 2031-08-27

Abstract

The utility model relates to the technical field of casting equipment, in particular to a compaction mechanism of a full-automatic molding machine, which comprises a sand frame, wherein a movable plate and a fixed plate are arranged below the sand frame, the sand frame is fixedly connected with the movable plate through a connecting rod, a first pressure plate and a second pressure plate are arranged at an opening at the bottom of the sand frame, the first pressure plate is of an annular plate structure arranged on the outer side of the second pressure plate, a supporting plate is arranged between the first pressure plate and the movable plate, the bottoms of the first pressure plate and the second pressure plate are respectively connected with the supporting plate through a first push rod and a second push rod, and an elastic part is arranged on the second push rod; the lifting driving part is arranged between the fixed plate and the movable plate, the supporting plate driving part is arranged between the movable plate and the supporting plate, and the first pressing plate and the second pressing plate are arranged in a flush mode in a free state to jointly form a horizontal combined pressing plate structure. The utility model is helpful for solving the problem that the existing structure extrudes the molding sand unevenly.

Description

Full-automatic molding machine compaction mechanism

Technical Field

The utility model relates to the technical field of casting equipment, in particular to a compaction mechanism of a full-automatic molding machine.

Background

The molding machine is a casting apparatus for manufacturing sand molds, and its main functions are: filling sand, namely filling loose molding sand into a sand box; compacting the molding sand, wherein the loose molding sand in the sand box is compacted through different methods such as jolt ramming, compaction, jolt ramming, injection pressing and the like, so that the molding sand has enough strength in the processes of carrying, pouring and the like; and (4) stripping, namely taking out the pattern from the compacted sand mold by using different mechanisms. At present, the compaction structure at sand box or sand frame adopts the tight real operation of the same horizontal pressing plate to carry out the molding sand most, and when this kind of structure was to high body mould, often the extrusion inequality can appear, is close to the excessive extrusion of the molding sand in mould region to the middle part, and is not enough to the regional molding sand compaction intensity in outside, leads to overall structure unstability.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a compaction mechanism of a full-automatic molding machine, which is beneficial to solving the problem that the existing structure extrudes molding sand unevenly.

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

a compaction mechanism of a full-automatic molding machine comprises a sand frame with an upper opening and a lower opening, wherein a movable plate and a fixed plate which are longitudinally arranged at intervals are arranged below the sand frame, the sand frame is fixedly connected with the movable plate through a connecting rod, a plurality of vertical guide rods are arranged on the fixed plate, the movable plate can be longitudinally sleeved on the guide rods in a movable mode, a first pressing plate and a second pressing plate are arranged at an opening at the bottom of the sand frame, the first pressing plate is of an annular plate structure arranged on the outer side of the second pressing plate, supporting plates are arranged between the first pressing plate and the movable plate, the bottoms of the first pressing plate and the second pressing plate are respectively connected with the supporting plates through a first push rod and a second push rod, and an elastic piece is arranged on the second push rod;

the lifting driving part is arranged between the fixed plate and the movable plate and can drive the movable plate to move along the guide rod in a reciprocating mode, the supporting plate driving part is arranged between the movable plate and the supporting plate and can drive the supporting plate and drive the first pressing plate and the second pressing plate to move in a longitudinal reciprocating mode, and the first pressing plate and the second pressing plate are arranged in a flush mode in a free state to jointly form a horizontal combined pressing plate structure.

Preferably, the inner side wall of the first pressing plate is attached to the outer side wall of the second pressing plate.

Preferably, the edge of the inner side of the bottom of the first pressing plate is provided with a first extending baffle which is of a vertical plate body structure.

Preferably, a second extending baffle is arranged at the edge of the outer side of the bottom of the second pressing plate and is of a vertical plate body structure.

Preferably, the lifting driving member and the pallet driving member are hydraulic cylinders.

Compared with the prior art, the utility model at least comprises the following advantages:

according to the utility model, the first pressing plate and the second pressing plate which are arranged inside and outside the opening at the bottom of the sand frame are arranged to form a split type pressing plate structure, and molding sand in the sand frame can be separately and independently extruded aiming at a high-body mold.

Drawings

FIG. 1 is a schematic diagram of a compaction mechanism of an embodiment of a fully automatic molding machine;

FIG. 2 is a schematic view of the platen of FIG. 1;

FIG. 3 is a schematic view showing a state where sand ore is filled with molding sand;

fig. 4 is a schematic structural view of the molding sand compacted by the first pressing plate and the second pressing plate in a staggered manner.

The figure is marked with: 1-a sand frame; 11-a connecting rod; 2-a first platen; 21-a first push rod; 22-a first extension flap; 3-a second press plate; 31-a second push rod; 32-a spring; 33-a second extension flap; 4-a movable plate; 5-a pallet cylinder; 6-a supporting plate; 7-a lifting oil cylinder; 8, fixing a plate; 9-a guide rod; 10-a mould; and 20-molding sand.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the following detailed description is made with reference to the accompanying drawings and detailed description. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the two elements or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, the embodiment discloses a compaction mechanism of a full-automatic molding machine, which comprises a sand frame 1, a first pressing plate 2, a second pressing plate 3, a movable plate 4, a pallet driving part, a pallet 6, a lifting driving part, a fixed plate 8 and a guide rod 9.

Wherein, sand frame 1 is upper and lower open-ended frame structure, and its inside cavity is used for holding molding sand 20, and sand frame 1 in this embodiment is sand frame down, and its top frame is used for with the center butt.

The first pressing plate 2 and the second pressing plate 3 are horizontally arranged at an opening at the bottom of the sand frame 1, and the tops of the first pressing plate and the second pressing plate are horizontal planes which are arranged in a flush manner under a free state. Specifically, first clamp plate 2 is cyclic annular frame structure, and it sets up in the 3 outsides of second clamp plate, and the 2 outside profiles of first clamp plate and the inside cavity cross section profiles looks adaptation of sand frame 1, both laminate each other, and 2 bottom evenly distributed of first clamp plate have vertical first push rod 11, the layer board 6 fixed connection of first push rod 11 bottom and level setting.

Second clamp plate 3 is horizontal plate structure, locate 1 bottom opening central point of sand frame and put, after 1 top of sand frame and center laminating, second clamp plate 3 is located the mould under regional, 3 bottom evenly distributed of second clamp plate have second push rod 31, second push rod 31 is vertical body of rod structure, be provided with the elastic component between second push rod 31 bottom and the layer board 6, the good concrete spring 32 that adopts of this elasticity, spring 32 can vertically stretch out and draw back the extension, under the free state, second push rod 31 equals the length of first push rod 21 with the combination length of spring 32, therefore, under the free state, first clamp plate 2 can keep flushing with 3 top surfaces of second clamp plate. The spring strength of the spring 32 can be selected according to production requirements, and different specifications can be selected to meet the requirements of different extrusion strengths.

It should be noted that, the inner side wall of the first pressing plate 2 is attached to the outer side wall of the second pressing plate 3, and can slide in a longitudinally staggered manner. The edge of the inner side of the bottom of the first pressing plate 2 is provided with a first extending baffle 22, and the first extending baffle 22 is of a vertical plate body structure. The edge of the outer side of the bottom of the second pressing plate 3 is provided with a second extending baffle 33, and the second extending baffle 33 is of a vertical plate structure. Moreover, the inner side wall of the first extension baffle 22 is attached to the outer side wall of the second extension baffle 33, and the first extension baffle and the second extension baffle can slide in a longitudinal dislocation manner, so that when the first pressing plate 2 and the second pressing plate 3 are longitudinally dislocated, a certain sealing effect can be kept in a gap between the first pressing plate and the second pressing plate, and the molding sand 20 above the first pressing plate and the second pressing plate can be prevented from leaking downwards from the position.

The movable plate 4 is of a horizontal plate structure and is arranged below the sand frame 1, the outer side of the bottom of the sand frame 1 is fixedly connected with the movable plate 4 through a plurality of vertical connecting rods 11, and a plurality of connecting through holes matched with the guide rods 9 are formed in the outer side of the movable plate 4.

The layer board 6 is located between fly leaf 4 and sand frame 1, layer board 6 is the horizontal plate body structure, its bottom is connected with fly leaf 4 through the layer board driving piece, the layer board driving piece specifically adopts layer board hydro-cylinder 5, layer board hydro-cylinder 5 sets firmly on fly leaf 4, the vertical upwards setting of piston of layer board hydro-cylinder 5, its top and 6 fixed connection of layer board, a plurality of layer board hydro-cylinder 5 equipartitions are in layer board 6 below, layer board hydro-cylinder 5 passes through the flexible of piston, can drive layer board 6 and carry out longitudinal movement, and utilize first push rod 21, second push rod 31 and spring 32 promote first clamp plate 2 and second clamp plate 3 respectively and carry out longitudinal movement, and then can extrude tight real operation to the molding sand 20 that is located top sand frame 1.

8 levels of fixed plate set up in fly leaf 4 below, both intervals set up, 8 outsides of fixed plate are equipped with a plurality of vertical guide arms 9, guide arm 9 wears to establish the through-hole on the

fly leaf

4, 8 central points of fixed plate put and have set firmly the lift driving spare, the lift cylinder 7 of vertical setting is concrete to the lift driving spare, lift cylinder 7's piston is vertical up, its top and fly leaf 4's bottom central point put fixed connection, lift cylinder 7 passes through the flexible of piston, can drive fly leaf 4 and carry out stable vertical reciprocating motion along guide arm 9, and then drive sand frame 1 and layer board 6, integrated configuration such as first clamp plate 2 and second clamp plate 3 carries out longitudinal movement.

In the specific implementation process, with reference to fig. 3 and 4, the middle frame and the mold 10 move together to a position right above the sand frame 1, the lift cylinder 7 drives the movable plate 4 to ascend, so that the top of the sand frame 1 abuts against the middle frame, at this time, the mold 10 is located right above the second pressing plate 3, the cavity inside the sand frame 1 is filled with molding sand 20 by means of the sand shooting mechanism, because the mold 10 is a high-body mold, there is a significant height difference between the molding sand 20 in the area below the mold 10 and the molding sand 20 in the area outside, and the traditional compacting structure is easy to cause a phenomenon of tight inside and loose outside after operation, in this embodiment, the pallet cylinder 5 drives the pallet 6 to ascend, in the first stage, the first push rod 21 and the second push rod 31 are used to synchronously ascend the first pressing plate 2 and the second pressing plate 3 to synchronously extrude the molding sand 20 on the inside and outside, and when the pallet 6 continues to ascend, the second stage is entered, because of the elastic property of the spring 32, when the sand frame is subjected to enough pressure, the pressure is converted into elastic potential energy, in this state, the second pressing plate 3 stops rising and always keeps applying a squeezing force to the molding sand 20 in the upper central area, the first pressing plate 2 continues rising and further squeezes the molding sand 20 in the upper outer area, so that the molding sand 20 in the area can obtain enough compaction strength, as shown in fig. 4, the first pressing plate 2 and the second pressing plate 3 are staggered, the first extending baffle 22 and the second extending baffle 33 cooperate to achieve the effect of sealing and preventing leakage, then the supporting plate oil cylinder 5 drives the supporting plate 6 and the first pressing plate 2 and the second pressing plate 3 to descend, secondary sand replenishing is carried out on the internal gap of the sand frame 1, the compaction operation is carried out again, and the operation is circulated until the top surfaces of the first pressing plate 2 and the second pressing plate 3 are basically in the same plane after compaction, so that the molding sand 20 can obtain fully and uniformly compacted, forming a complete and firm molding sand structure.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A compaction mechanism of a full-automatic molding machine is characterized by comprising a sand frame with an upper opening and a lower opening, wherein a movable plate and a fixed plate which are longitudinally arranged at intervals are arranged below the sand frame, the sand frame is fixedly connected with the movable plate through a connecting rod, a plurality of vertical guide rods are arranged on the fixed plate, the movable plate can be longitudinally sleeved on the guide rods in a movable mode, a first pressing plate and a second pressing plate are arranged at an opening at the bottom of the sand frame, the first pressing plate is of an annular plate structure arranged on the outer side of the second pressing plate, a supporting plate is arranged between the first pressing plate and the movable plate, the bottoms of the first pressing plate and the second pressing plate are respectively connected with the supporting plate through a first push rod and a second push rod, and an elastic piece is arranged on the second push rod;

2. The compaction mechanism of a fully automatic molding machine as claimed in claim 1, wherein the inner side wall of the first platen is in abutting engagement with the outer side wall of the second platen.

3. The compaction mechanism of a fully automatic molding machine as claimed in claim 1, wherein a first extension baffle is provided at the inner edge of the bottom of the first platen, the first extension baffle being of a vertical plate structure.

4. The compaction mechanism of the fully automatic molding machine according to claim 1 or 3, wherein a second extending baffle is arranged at the outer edge of the bottom of the second pressing plate, and the second extending baffle is of a vertical plate structure.

5. The fully automated molding machine press mechanism of claim 1 wherein the lift drive and pallet drive are hydraulic cylinders.