CN222552089U - Positioning-free middle groove lost foam system - Google Patents

Abstract

The utility model discloses a positioning-free middle groove vanishing die system, which comprises a middle plate vanishing die, a back plate vanishing die, a shovel plate ledge vanishing die, a baffle ledge vanishing die, a rack seat vanishing die and a baffle vanishing die, wherein the middle plate vanishing die and the back plate vanishing die are arranged in parallel, the middle plate vanishing die is positioned above a sealing plate vanishing die, two ends of the middle plate vanishing die and the back plate vanishing die are respectively connected with the shovel plate ledge vanishing die and the baffle ledge vanishing die, the upper end of the baffle ledge vanishing die is connected with the rack seat vanishing die, the side edge of the baffle ledge vanishing die is also connected with the baffle vanishing die, and a positioning boss matched with the rack seat is arranged on the inner side of the baffle vanishing die so as to facilitate positioning.

Description

Positioning-free middle groove lost foam system

Technical Field

The utility model relates to the technical field of lost foam, in particular to a positioning-free middle groove lost foam system.

Background

The central trough is a conventional part of a scraper conveyor. The middle groove can be manufactured by two ways, casting and welding. Compared with welding, casting is integrally formed and can bear larger pressure. Casting types are mainly classified into sand casting and special casting. There are various types of special casting, one of which is lost foam casting. The lost foam casting (also called full mold casting) is a novel casting method for producing castings by a one-step molding casting new process formed by dipping fireproof paint (with the functions of strengthening, smoothing and ventilation) and drying, burying in dry quartz sand, and casting a sand box into molten metal liquid in a negative pressure state by three-dimensional vibration molding to enable the lost foam (EPS, STMMA or EPMMA) to be manufactured into a full mold with the structure and the size of the cast part to be produced by using a high polymer material, namely, the lost foam is heated, gasified and extracted, and then liquid metal is replaced by cooling and solidifying. The lost foam is generally formed by engraving a block-shaped foam with an engraving machine. However, the lost foam of the middle groove is difficult to be engraved and molded at one time by the engraving machine because of the huge middle groove.

The Chinese patent application No. 201320743984.3 entitled "lost foam for casting middle groove" adopts the scheme that lost foam is divided into middle plate lost foam, shovel plate ledge lost foam, baffle ledge lost foam, bottom sealing plate lost foam, rack seat lost foam and square hole plate lost foam, and then assembled into a whole.

However, the scheme lacks positioning between the square hole plate vanishing mold and the baffle ledge vanishing mold, and when the scheme is assembled, the position where the square hole plate vanishing mold is placed needs to be measured on the upper surface of the baffle ledge vanishing mold, so that the square hole plate vanishing mold can be spliced. Thus, a lot of effort is spent, which can lead to the prepared middle trough not being usable when deviations occur in the measurement.

Disclosure of Invention

In view of this, it is desirable to provide a positioning-free center groove lost foam system that eliminates the need for positioning of lost foam components during assembly.

The utility model provides a exempt from location middle part groove disappearance mould system includes medium plate disappearance mould, back cover board disappearance mould, shovel plate ledge disappearance mould, baffle ledge disappearance mould, rack seat disappearance mould, baffle disappearance mould, medium plate disappearance mould and back cover board disappearance mould parallel arrangement, and medium plate disappearance mould is located the top of shrouding disappearance mould, and medium plate disappearance mould, back cover board disappearance mould's both ends are connected with shovel plate ledge disappearance mould, baffle ledge disappearance mould respectively, the upper end and the rack seat disappearance mould of baffle ledge disappearance mould are connected, and the side of baffle ledge disappearance mould still is connected with the baffle disappearance mould, and the inboard of baffle disappearance mould is equipped with tooth rail seat assorted location boss to be convenient for fix a position.

Preferably, the shovel plate ledge lost foam comprises a shovel plate lost foam and a shovel plate ledge body lost foam, wherein a weight-reducing groove is formed in the bottom of the shovel plate ledge lost foam to reduce the weight of the middle groove, a first clamping groove is formed in the bottom of the shovel plate ledge body lost foam, and the shovel plate lost foam is connected with the first clamping groove in a clamping mode.

Preferably, the baffle ledge lost foam comprises a baffle ledge body lost foam and a baffle seat lost foam, wherein the outer side of the upper end of the baffle ledge body lost foam is fixedly connected with the side edge of the baffle seat lost foam, the upper end of the baffle seat lost foam is connected with the tooth rail seat and the baffle lost foam, and the baffle lost foam is positioned on the outer side of the baffle seat lost foam.

Preferably, a plurality of rib plate vanishing molds are further arranged on the outer sides of the baffle ledge body vanishing molds so as to support the baffle seat vanishing molds.

Preferably, a plurality of lifting holes are further formed between the baffle ledge body vanishing die and the rib plate vanishing die, so that the middle groove is convenient to carry.

Preferably, a support plate vanishing die is arranged below the rib plate vanishing die so as to support the rib plate, and the inner side of the support plate vanishing die is also connected with the baffle ledge body vanishing die.

The positioning-free middle groove lost foam system has the beneficial effects that after the positioning boss is arranged on the inner side of the baffle lost foam, when the rack seat lost foam is spliced, only the side edge of the rack seat lost foam is completely aligned with the positioning boss, so that the positioning is convenient, and the measurement is not needed. Meanwhile, after the positioning boss is connected with the rack seat lost foam, the cast rack seat and the baffle of the middle groove are integrally formed, so that the bearing strength of the rack seat is improved, the rack seat is less prone to problems, and the service life of the middle groove is prolonged.

Drawings

Fig. 1 is a schematic diagram of an assembly structure of a positioning-free middle groove lost foam system of the present utility model.

Fig. 2 is a schematic diagram of a split structure of the positioning-free middle groove lost foam system of the present utility model.

Fig. 3 is a schematic view of another angle split structure of the positioning-free middle groove lost foam system of the present utility model.

In the figure, a positioning-free middle groove vanishing mold system 10, a middle plate vanishing mold 20, a bottom sealing plate 30, a shovel ledge vanishing mold 40, a shovel ledge body vanishing mold 401, a shovel ledge body vanishing mold 402, a baffle ledge body mold 50, a baffle ledge body vanishing mold 501, a baffle seat vanishing mold 502, a rib plate vanishing mold 503, a lifting hole 504, a supporting plate 505, a rack seat vanishing mold 60, a baffle vanishing mold 70 and a positioning boss 701 are shown.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Referring to fig. 1 to 3, a positioning-free middle-groove lost foam system 10 includes a middle-plate lost foam 20, a back-plate lost foam 30, a shovel ledge lost foam 40, a baffle ledge lost foam 50, a rack seat lost foam 60, and a baffle lost foam 70, wherein the middle-plate lost foam 20 and the back-plate lost foam 30 are arranged in parallel, the middle-plate lost foam 20 is positioned above the sealing-plate lost foam, two ends of the middle-plate lost foam 20 and the back-plate lost foam 30 are respectively connected with the shovel ledge lost foam 40 and the baffle ledge lost foam 50, the upper end of the baffle ledge lost foam 50 is connected with the rack seat lost foam 60, the side edge of the baffle ledge lost foam 50 is also connected with the baffle lost foam 70, and a positioning boss 701 matched with the rack seat is arranged at the inner side of the baffle lost foam 70 so as to facilitate positioning.

The connection between the components of the center-tank lost foam system is relatively single, typically adhesive. The manufacturing process of the middle groove lost foam comprises the steps of processing all parts of foam materials by using an engraving machine, and then adhering the parts according to a drawing to form the middle groove lost foam. During bonding, some components have natural positioning locations with adjacent bonding components, such as between middle plate expendable pattern 20 and both spade ledge expendable pattern 40 and baffle ledge expendable pattern 50. The overall structure of the shovel ledge lost foam 40 and the baffle ledge lost foam 50 is M-shaped, and the end surfaces at the bending part of the M-shape can be exactly matched with the end surfaces at the two ends of the middle plate lost foam 20, so that positioning is not needed. Likewise, the sole plate need not be positioned. For the baffle ledge lost foam 50 connected with the rack seat lost foam 60, the upper end of the baffle ledge lost foam 50 is flat-topped and the area of the baffle ledge lost foam is far larger than that of the rack seat lost foam 60. The top of baffle ledge lost foam 50 can't provide the location for rack seat lost foam 60, when bonding the rack seat, need according to the design drawing, measure the position that the rack seat needs to be fixed, again with the rack seat fixed. This approach takes a long time and is prone to error. If a positioning groove or a boss is formed on the upper surface of the wall-forming lost foam 50, the engraved surface of the wall-forming lost foam 50 is increased, and the wall-forming lost foam 50 needs to be turned over, so that deviation is easy to occur, and the rejection rate of the wall-forming lost foam 50 is increased. According to the position relation and the structure of the gear seat lost foam and the baffle lost foam 70, the positioning boss 701 is additionally arranged on the inner side of the baffle lost foam 70, so that the positioning boss 701 is connected with the rack seat lost foam 60. The mode is very convenient to position, and the pressure bearing capacity of the gear seat of the manufactured middle groove is better. The inner side surface of the lost foam 70 is originally required to be provided with rib plates and the like, and the positioning boss 701 is additionally provided with no additional carved surface of the lost foam 70.

The positioning boss 701 is a boss provided according to the structure of the side edge of the rack seat lost foam 60, and can be completely matched with the side edge of the rack seat. The positioning boss 701 can be changed accordingly according to the shape and size of the actual tooth rail seat.

The side of the lower end of the shovel plate ledge is provided with a shovel plate, so that the shovel plate ledge is L-shaped. When processing with an engraving machine, most of the sheet material needs to be removed. In order to reduce the consumption of the plate, further, the shovel ledge lost foam 40 includes a shovel ledge lost foam 401 and a shovel ledge body lost foam 402, a weight-reducing groove is formed at the bottom of the shovel ledge lost foam 401 of the shovel ledge lost foam 40 to reduce the weight of the middle groove, a first clamping groove is formed at the bottom of the shovel ledge body lost foam 402, and the shovel ledge lost foam 401 is connected with the first clamping groove in a clamping manner.

In this way, the shovel ledge lost foam 40 is divided into two I-shaped structures by an L shape, and carving materials can be saved remarkably during carving. Meanwhile, considering that the bottom of the shovel ledge is generally provided with a weight-reducing groove, in order to reduce the carved surface of the shovel ledge body lost foam 402, the shovel ledge body lost foam 401 is extended to the lower end of the shovel ledge body lost foam 402, so that the weight-reducing groove is separated from the shovel ledge body lost foam 402. The separated spatulate body lost foam 402 forms a first detent.

The end face of the upper end of the baffle ledge is obviously wider than other positions of the baffle ledge due to the fact that the tooth rail seat is to be installed, so that the whole baffle ledge is L-shaped, and plates are wasted during carving. Therefore, in a preferred embodiment, the wall-closing lost foam 50 includes a wall-closing lost foam 501 and a wall-closing lost foam 502, wherein the outer side of the upper end of the wall-closing lost foam 501 is fixedly connected with the side of the wall-closing lost foam 502, the upper end of the wall-closing lost foam 502 is connected with the tooth rail seat and the wall-closing lost foam 70, and the wall-closing lost foam 70 is located outside the wall-closing lost foam 502.

The upper end surface of the baffle ledge vanishing mold 50 and the upper end surface of the baffle seat vanishing mold 502 are on the same plane, and the front and rear ends of the baffle ledge vanishing mold 50 and the front and rear ends of the baffle seat vanishing mold 502 are also on the same plane, so that the baffle seat vanishing mold 502 and the baffle ledge vanishing mold 50 do not need to be positioned when being assembled.

The baffle seat bears the pressure from the toothed rail seat and the baffle, and the toothed rail seat of the middle groove and the iron casting during the baffle which are cast later are made of foam materials during the process of the toothed rail seat vanishing mould 60 and the baffle vanishing mould 70, and after the baffle seat is installed on the scraper conveyor, the baffle seat is easy to deform or break due to the fact that the weight of the toothed rail is required to bear, therefore, a plurality of rib plate vanishing moulds 503 are further arranged on the outer side of the baffle ledge body vanishing mould 501 so as to support the baffle seat vanishing mould 502. Likewise, to reduce wastage of engraving material, the rib-plate expendable pattern 503 is engraved separately from the baffle ledge body. Because the baffle ledge body is M-shaped, part of the rib plate vanishing mold 503 is attached to the baffle ledge body and integrally carved with the baffle ledge body, and the rib plates exceeding the side part of the baffle ledge are independently carved as the rib plate vanishing mold 503. During splicing, the rib plate part on the baffle ledge body can be naturally matched with the independently engraved rib plate lost foam 503 part, and positioning is not needed.

Further, a plurality of lifting holes 504 are further formed between the baffle ledge body lost foam 501 and the rib plate lost foam 503, so that the middle groove can be conveniently carried.

During hoisting, the rib plate in the middle of the baffle ledge bears larger force, so that the rib plate is prevented from being broken due to the force applied to the rib plate, further, a support plate vanishing mold 505 is arranged below the rib plate vanishing mold 503 to support the rib plate, and the inner side of the support plate vanishing mold 505 is also connected with the baffle ledge body vanishing mold 501, so that the rib plate and the rib plate bear force together.

The foregoing disclosure is illustrative of the preferred embodiments of the present utility model, and is not to be construed as limiting the scope of the utility model, as it is understood by those skilled in the art that all or part of the above-described embodiments may be practiced with equivalents thereof, which fall within the scope of the utility model as defined by the appended claims.

Claims (6)

1. A positioning-free middle groove lost foam system, characterized in that it includes a middle plate lost foam, a bottom plate lost foam, a shovel plate groove side lost foam, a baffle plate groove side lost foam, a rack seat lost foam, and a baffle plate lost foam, wherein the middle plate lost foam is arranged in parallel with the bottom plate lost foam, the middle plate lost foam is located above the sealing plate lost foam, the two ends of the middle plate lost foam and the bottom plate lost foam are respectively connected with the shovel plate groove side lost foam and the baffle plate groove side lost foam, the upper end of the baffle plate groove side lost foam is connected with the rack seat lost foam, the side of the baffle plate groove side lost foam is also connected with the baffle plate lost foam, and a positioning boss matching the rack seat is provided on the inner side of the baffle plate lost foam for easy positioning. 2. The positioning-free middle groove lost foam system as described in claim 1 is characterized in that: the shovel plate groove side lost foam includes a shovel plate lost foam and a shovel plate groove side body lost foam, and the bottom of the shovel plate groove side lost foam is provided with a weight-reducing groove to reduce the weight of the middle groove, and the bottom of the shovel plate groove side body lost foam is provided with a first card slot, and the shovel plate lost foam is engaged and connected with the first card slot. 3. The positioning-free middle groove lost foam system as described in claim 2 is characterized in that: the baffle groove side lost foam includes a baffle groove side body lost foam and a baffle seat lost foam, the outer side of the upper end of the baffle groove side body lost foam is fixedly connected to the side of the baffle seat lost foam, the upper end of the baffle seat lost foam is connected to the rack seat and the baffle lost foam, and the baffle lost foam is located on the outer side of the baffle seat lost foam. 4. The positioning-free middle groove lost foam system as described in claim 3 is characterized in that: a plurality of rib plate lost foams are also provided on the outer side of the lost foam of the baffle groove body to support the lost foam of the baffle seat. 5. The positioning-free middle trough lost foam system as described in claim 4 is characterized in that: a plurality of lifting holes are provided between the lost foam of the baffle trough body and the lost foam of the rib plate to facilitate the transportation of the middle trough. 6. The positioning-free middle groove lost foam system as described in claim 4 is characterized in that a support plate lost foam is provided below the rib plate lost foam to support the rib plate, and the inner side of the support plate lost foam is also connected to the baffle groove body lost foam.