A sand-falling device for casting automobile parts

Abstract

The application relates to the technical field of foundry production equipment, and particularly discloses a shakeout device for casting automobile parts; the shakeout device comprises a vibrating frame, a sieve plate assembly and a partition plate mechanism which are assembled in the frame of the vibrating frame; the sieve plate assembly comprises a sieve plate which is installed in an elastic support mode and a crushing component which is used for crushing the sand; when the sieve plate vibrates with the vibrating frame, the crushing component cleans and crushes the sand which passes through the sieve holes of the sieve plate; the partition plate mechanism comprises two guide plates which are arranged in parallel and fixed in the frame of the vibrating frame; a plurality of partition plate groups are assembled between the two guide plates and above the sieve plate; the partition plate group comprises two partition plate assemblies which are slidably arranged on the sieve plate assembly; the device provided by the application solves the problems that the sand is difficult to clean, the sand is not easy to shake out and the sand shaking-out effect is poor in the existing shakeout machine to a certain extent, the sand can be pre-recovered, and the sand recovery rate is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of foundry production equipment, and particularly discloses a shakeout device for casting automobile parts. BACKGROUND

[0002] In the production and manufacturing process of automobile parts, casting processing is a commonly used processing and forming method for related parts in systems such as engines, transmission systems, chassis suspensions and the like, and casting is divided into various types, and sand casting is a casting process widely used for casting automobile parts. In the process of sand casting, the mold sand on the surface of the casting needs to be separated after the casting is formed. In the prior art, a special shakeout machine is usually used for shakeout treatment. The existing shakeout machine is similar in structure to a vibrating screen and mainly utilizes vibration to separate the mold sand from the surface of the casting. However, in the actual treatment process, in addition to the fact that the separated mold sand blocks are large due to the strong bonding force of the mold sand, causing poor shakeout and great cleaning difficulty, the existing shakeout machine itself has various structural design reasons, causing problems such as poor shakeout, great cleaning difficulty of the mold sand and poor shakeout effect, mainly embodied in the following points:

[0003] (1) The existing shakeout machine is similar to a vibrating screen and is usually provided with a sieve plate and a sand outlet. In the shakeout treatment process, most of the small mold sand directly passes through the sieve holes of the sieve plate and is discharged, and a small part of the mold sand containing large mold sand blocks, sintered blocks and other metal impurities is discharged from the sand outlet, which also has a screening effect on the separated mold sand. However, the sieve plate of the existing shakeout machine needs to have a certain mechanical strength, so the distribution density of the sieve holes is usually significantly smaller than that of the sieve holes of the vibrating screen. Therefore, the separated mold sand is more likely to cause the problem of not timely discharging, thereby causing relatively poor discharging and increasing the wear between the mold sand and the casting and the equipment.

[0004] (2) The working area is not effectively isolated and partitioned, causing the accumulation of mold sand in a local area, which makes the mold sand discharge and flow not smooth. In addition, the probability of mutual collision of castings due to vibration is increased, which makes the castings prone to structural rupture.

[0005] (3) The structure of automobile parts castings is diverse. When the castings have many uneven surfaces and mold hole structures, the cleaning difficulty of the mold sand is increased, the mold sand on the surface of the castings cannot be fully cleaned, and the workload of subsequent rework cleaning is also increased. SUMMARY

[0006] To solve the above problems, the present application provides a shakeout device for casting automobile parts, which is used to solve the problems mentioned in the background art.

[0007] In order to achieve the above object, the present application adopts the following technical scheme: A shakeout device for casting automobile parts, comprising: a vibrating frame for emitting vibration excitation; a sieve plate assembly assembled in the frame of the vibrating frame, the sieve plate assembly comprising a sieve plate installed in an elastic support and a crushing component for crushing the sand, when the sieve plate vibrates with the vibrating frame, the crushing component cleans and crushes the sand passing through the sieve holes of the sieve plate; and a baffle mechanism, the baffle mechanism comprising two guide plates arranged in parallel and fixed in the frame of the vibrating frame, a plurality of baffle groups above the sieve plate are assembled between the two guide plates; the baffle group comprises two baffle assemblies oppositely slidingly installed on the sieve plate assembly; when the sieve plate vibrates with the vibrating frame, the two baffle assemblies in the baffle group reciprocate alternately under the guidance of the guide plates, the baffle assembly and the casting are in flexible collision contact, and the baffle assembly assists in cleaning the sand on the casting.

[0008] Preferably, the sieve plate assembly further comprises: a lattice frame horizontally fixed in the frame of the vibrating frame; a sieve plate seat slidingly fitted on the upper end of the lattice frame; the sieve plate is fixed on the sieve plate seat and above the lattice frame; a plurality of spring columns are arranged between the sieve plate seat and the lattice frame, and the two ends of the spring columns are fixed on the sieve plate seat and the lattice frame respectively; and a crushing cone, the crushing component is a crushing cone, and the crushing cone is fixed on the upper end face of the lattice frame; at least part of the sieve holes continuously distributed on the sieve plate are correspondingly provided with the crushing cone; when the sieve plate seat vibrates relative to the lattice frame in the spring elastic force direction, the crushing cone passes through the corresponding sieve hole.

[0009] Preferably, the top end of the crushing cone is in the shape of a tapered tip, and a plurality of crushing blades for sand dispersion are circumferentially distributed on the crushing cone.

[0010] Preferably, two guide holes oppositely arranged are formed in the guide plate corresponding to each baffle group, and the two guide holes and the two baffle assemblies in the corresponding baffle group are one-to-one correspondingly matched; the baffle assembly is guided to move by the guide hole, and the guide hole has a guide movement component in the sliding direction of the baffle assembly.

[0011] Preferably, the baffle assembly comprises: a baffle body, the bottom end of which is slidingly fitted on the sieve plate seat; two moving pins, which are symmetrically arranged and horizontally rotatably installed at the two ends of the baffle body; the two moving pins move along the guide holes correspondingly arranged on the two guide plates; a plurality of cleaning brush plates, which are detachably installed on the baffle body and away from the plate surface of the other baffle body in the same group; and a plurality of spacer plates, which are fixed perpendicularly on the plate surface on the same side of the baffle body as the cleaning brush plate, and adjacent two cleaning brush plates are separated by a spacer plate.

[0012] Preferably, the top end portion of the partition body is bent towards another partition body in the same group, and a guide roller is horizontally pivotally arranged on the partition body at the top bent portion.

[0013] Preferably, the screen surface of the screen plate is provided with protruding cones arranged in an array, and the protruding cones and the screen holes are uniformly and alternately arranged on the screen surface of the screen plate.

[0014] Preferably, the lower end surface of the screen plate is provided with a material hole plate, the material hole plate is provided with a material falling hole corresponding to each crushing cone, the material falling hole is arranged opposite to the screen hole, and the crushing cone is arranged in the material falling hole.

[0015] Preferably, the vibration frame comprises a base and a frame body, the lattice strip frame is fixed on the base, the screen plate assembly and the partition assembly are arranged in the frame body, and the guide plate is fixed on the inner side wall of the frame body.

[0016] Preferably, a gap is reserved between the bottom end of the partition body and the screen plate for the passage of the sand.

[0017] The technical scheme has the following advantages or beneficial effects: the sand falling device for automobile part casting provided by the present application is improved based on the existing sand falling machine, the screen plate assembly is provided, the separated sand can be dispersed and guided to fall and crushed to fall, the separation of the sand on the surface of the casting is promoted, the efficiency of the sand falling is improved, the recyclable sand is pre-crushed and dispersed, and the recycling rate of the sand is improved; in addition, the partition mechanism is assembled with the screen plate assembly, the working area can be reasonably divided, the separation of the casting and the sand is realized, the local accumulation of the sand is avoided, in the process that the screen plate assembly is forced to vibrate with the main vibration of the device, the surface area of the casting containing the difficult-to-clean area can be actively assisted to clean, the separation effect of the sand is improved, the flexible lateral contact reduces the hard collision between the castings, and the automobile part casting product is protected; in summary, the device provided by the present application solves the problems of the existing sand falling machine, such as the difficulty in cleaning the sand, the poor sand falling and the poor sand falling effect, and the sand can be pre-recycled, and the recycling rate of the sand is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application and its features, shapes and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. The same reference signs indicate the same parts throughout the drawings, and the drawings are not necessarily drawn to scale, and the emphasis is on showing the main idea of the present application.

[0019] Figure 1 is a perspective structural schematic view of a sand falling device for automobile part casting provided by the present application.

[0020] Figure 2 is a top view of a shakeout device for casting automobile parts provided by the present application.

[0021] Figure 3 is Figure 2 is a sectional view of A-A in FIG.

[0022] Figure 4 is Figure 3 is an enlarged view of the structure at C in FIG.

[0023] Figure 5 is Figure 2 is a sectional view of B-B in FIG.

[0024] Figure 6 is an assembled view of the partition assembly, the sieve plate assembly and the base.

[0025] Figure 7 is Figure 6 is an enlarged view of the structure at D in FIG.

[0026] Figure 8 is a perspective view of the vibrating frame.

[0027] Figure 9 is a perspective view of the sieve plate assembly assembled on the base.

[0028] Figure 10 is a perspective view of the breaking cone assembled on the lattice frame.

[0029] Figure 11 is a perspective view of the sieve plate assembled on the sieve plate seat.

[0030] Figure 12 is a perspective view of the material hole plate.

[0031] Figure 13 is a perspective view of the partition assembly.

[0032] In the figure: 1, vibrating frame; 11, base; 12, frame body; 121, sand outlet; 122, material sliding plate; 2, sieve plate assembly; 21, lattice frame; 22, breaking cone; 23, spring; 24, sieve plate seat; 241, sliding groove; 25, sieve plate; 251, protruding cone; 26, material hole plate; 261, material hole; 3, partition mechanism; 31, guide plate; 311, guide hole; 32, partition group; 33, partition assembly; 331, partition main body; 332, guide roller; 333, moving pin; 334, cleaning plate brush; 335, partition plate. DETAILED DESCRIPTION

[0033] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0034] In order for those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0035] As Figures 1-6 shown, a shakeout device for casting automobile parts, comprising a vibration frame 1 for emitting vibration excitation, the vibration frame 1 comprising a base 11 and a frame body 12 welded on the base 11, the vibration frame 1 being the vibration main body structure of the existing shakeout machine, and further comprising a resilient base connected with the bottom end of the base 11 by elastic support and a vibration motor fixed on the outer wall of the frame body 12, as the structure composition disclosed by the existing shakeout machine, the resilient base and the vibration motor are not shown in the drawings; in the present embodiment, the frame body 12 is in a rectangular frame structure, and a sieve plate assembly 2 is assembled on the base 11 inside the frame body 12, in order to facilitate the sand dropping, therefore the vibration frame 1 is installed and arranged on the resilient base in an inclined manner, a sand outlet 121 is formed on the frame surface of the frame body 12 at the inclined lower side of the vibration frame 1, and a dropping slide plate 122 is welded on the frame body 12 at the sand outlet 121.

[0036] As Figures 2-12As shown, the screen assembly 2 comprises a lattice frame 21 fixed on the base 11 by screws, the lattice frame 21 comprises a rectangular frame and a plurality of lattice plates evenly welded on the rectangular frame; the screen seat 24 is slidingly and fittingly installed on the rectangular frame of the lattice frame 21, the screen seat 24 is in the form of a rectangular frame structure, the screen 25 is embeddedly and weldingly arranged in the frame of the screen seat 24, the screen surface of the screen 25 is flush with the upper end surface of the screen seat 24, a plurality of circular screen holes are evenly distributed on the screen 25, the screen holes are arranged in a rectangular array, in the embodiment, the diameter of the screen hole is 6CM, in addition, a plurality of convex cones 251 are evenly fixed on the screen 25, the convex cones 251 are also arranged in a rectangular array, and the convex cones 251 are evenly and alternately distributed with the screen holes, the convex cone 251 is in the form of a conical structure with a circular arc as the generatrix, the generatrix of the convex cone 251 is tangent to the screen surface of the screen 25, and the tip of the convex cone 251 is in the form of a round head, during the sand dropping process, the convex cone 251 forms a plurality of evenly distributed supporting points in contact with the casting, so that the casting surface is less in direct contact with the screen surface, on the one hand, the separating effect of the sand is enhanced by the convex cone 251, on the other hand, the separated sand is prevented from being pressed on the screen surface again during the vibration and dropping process of the casting, which is more conducive to the crushing and dispersion of the sand block and the flow; two rows of springs 23 are assembled between the screen seat 24 and the lattice frame 21, the two ends of the spring 23 are welded on the screen seat 24 and the lattice frame 21 respectively; a plurality of crushing cones 22 are vertically welded on each lattice plate of the lattice frame 21 and arranged in a uniform array; the crushing cone 22 is correspondingly arranged at each screen hole of the screen 25 and arranged in the center relative to the screen hole, the top end of the crushing cone 22 is in the form of a pointed tip for impacting and crushing the sand block, and a plurality of crushing blades for sand dispersion are evenly distributed on the crushing cone 22; in order to prolong the time of crushing the sand block by the crushing cone 22 and improve the crushing and dispersion effect, the lower end surface of the screen 25 is fixed with a material hole plate 26 by bolts, a material hole 261 with the same diameter as the screen hole is arranged on the material hole plate 26 relative to each screen hole, the crushing cone 22 is located in the material hole 261, and the material hole 261 and the screen hole jointly form a channel for the sand dropping, the channel is lengthened, so that the actual time of the sand passing through the channel is prolonged, in addition, the plurality of crushing blades of the crushing cone 22 separate the screen hole with a large diameter into a plurality of small screen hole channels, which can meet the needs of sand separation and screening.

[0037] As Figure 1 , Figure 2 and Figure 8As shown, the vibration frame 1 is provided with a baffle mechanism 3 matched with the screen plate assembly 2; the baffle mechanism 3 includes two guide plates 31 arranged in parallel and welded in the frame body 12, and a plurality of baffle groups 32 are assembled between the two guide plates 31 and uniformly distributed in the inclination direction of the vibration frame 1; the baffle group 32 includes two baffle assemblies 33 slidably mounted on the screen plate seat 24. The guide plate 31 is provided with two guide holes 311 arranged oppositely corresponding to each baffle group 32, and the two guide holes 311 are correspondingly matched with the two baffle assemblies 33 in the corresponding baffle group 32; the guide hole 311 is in the form of a circular arc hole, and the baffle assembly 33 is guided to move by the guide hole 311, and the guide hole 311 has a guiding movement component in the sliding direction of the baffle assembly 33.

[0038] As shown in Figure 3 , Figure 6 , Figure 8 and Figure 13 , the baffle assembly 33 includes a baffle body 331, and the screen plate seat 24 is provided with two sliding grooves 241 extending in the inclination direction of the vibration frame 1, and the baffle body 331 is slidably mounted in the two sliding grooves 241 near the bottom of the two ends, and a gap is reserved between the bottom end of the baffle body 331 and the screen plate 25 for the sand to pass through. The two ends of the baffle body 331 are horizontally rotatably provided with moving pins 333, and the two moving pins 333 are horizontally symmetrically arranged; the two moving pins 333 move along the guide holes 311 arranged on the two guide plates 31. Three cleaning brush plates are detachably mounted on the baffle body 331 by screws, and the baffle body 331 is opposite to the other baffle body 331 in the same group; the cleaning brush plate includes a rubber base plate and hard nylon bristles woven on the rubber base plate, and the nylon bristles are used for cleaning the sand on the surface of the casting, and the cleaning brush plate can be replaced according to the wear degree of the nylon bristles after long-term use; a spacer plate 335 is vertically welded on the same side surface of the baffle body 331, and the adjacent two cleaning brush plates are separated by the spacer plate 335, and the spacer plate 335 is covered with a rubber sleeve. The top part of the baffle body 331 is bent towards the other baffle body 331 in the same group, and a guide roller 332 is horizontally rotatably mounted on the baffle body 331 at the top bent position; the working area in the frame body 12 is divided into a plurality of sub-working areas by the baffle groups 32 and the spacer plates 335 in the baffle assemblies 33, and the automobile parts castings are dispersed in each sub-working area during the shakeout process; when the automobile parts castings are put in, the guide roller 332 can guide the castings to fall into the sub-working area, so as to avoid hard collision and contact between the castings and the top end of the baffle body 331.

[0039] In actual work, after the device is started, the vibration frame 1 is in a vibrating state under the driving of the vibration motor, the lattice frame 21 keeps synchronous vibration with the vibration frame 1, the sieve plate 25 is installed on the sieve plate seat 24, and the sieve plate seat 24 is connected with the lattice frame 21 by two rows of springs 23, so that the sieve plate 25 together with the sieve plate seat 24 as a whole will respond to the vibration of the vibration frame 1 and form forced vibration on the basis of the vibration of the vibration frame 1, which is that the sieve plate 25 reciprocates up and down on the lattice frame 21 with the sieve plate seat 24, and at the same time, since the partition body 331 is slidingly installed on the sieve plate seat 24, the partition body 331 generates synchronous displacement in the sliding direction of the sieve plate seat 24 with the sieve plate seat 24, and the guide plate 31 is fixed on the frame body 12 and vibrates synchronously with the lattice frame 21, so that the partition body 331 indirectly generates relative displacement with the guide plate 31 in the sliding direction of the sieve plate seat 24, and under the guidance of the guide hole 311 of the guide plate 31, the two partition bodies 331 in the partition group 32 reciprocate relatively close and relatively far away under the guidance of the sliding groove 241.

[0040] In the started state of the device, the automobile part castings wrapped with sand are put into the frame body 12, and the castings are randomly dispersed into the corresponding sub-working areas, in the vibration process, the castings and the sieve plate 25 generate vibration and collision, the sand is separated from the surface of the castings, by multiple partition of the working area, the castings are dispersed and placed, at the same time, the accumulation of sand in the local area is avoided, the friction between the sand and the castings is reduced, and the sand is separated from the surface of the castings, the two partition bodies 331 in each partition group 32 reciprocate relatively close and relatively far away, so that the bristles of the cleaning brush plate can generate brushing contact with the side wall of the casting, through the active contact between the bristles and the casting, especially the sand in the concave-convex surface of the casting and the sand in the mold hole, and through the flexible contact and separation of the cleaning brush plate and the partition plate 335 to the casting, the probability of mutual collision and impact between the castings is reduced, and the structure of the castings is protected.

[0041] In addition, the sand separated by vibration falls on the sieve plate 25, the raised cone 251 not only enhances the effect of sand separation and cleaning, but also has a material guiding effect on the sand, which can promote the sand to move to the sieve hole, and along with the relative movement between the sieve plate 25 and the lattice frame 21, the broken cone 22 generates reciprocating impact and breaking effect in the axial direction of the material hole passage, which promotes the large sand blocks to be broken and dispersed into small sand or sand particles, and completes rapid material falling through the material hole passage, which can improve the efficiency of sand falling and pre-break the recyclable sand, compared with the existing sand falling machine, more sand can be promoted to fall from the sieve hole, and more recyclable sand can be avoided to be discharged from the sand outlet 121 with sintered blocks and metal impurities, so as to improve the recovery rate of the sand.

[0042] During the shakeout process, most of the sand is shaken out from the sieve holes, and the remaining sand containing sintered blocks, metal blocks and other impurities will be shaken out from the sand outlet 121 along the shakeout slide plate 122. After the shakeout process is completed, the casting can be taken out.

[0043] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0044] In the description of the present application, it should be understood that unless otherwise explicitly specified and limited, the terms "set", "connected", "mounted", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood through specific circumstances.

[0045] The preferred embodiments of the present application have been described above. It should be understood that the present application is not limited to the above specific embodiments, and that the devices and structures not fully described should be understood as being implemented in the ordinary way in the art; any person skilled in the art can make many possible changes and modifications, or modify equivalent embodiments without departing from the technical solution of the present application, which does not affect the essential content of the present application. Therefore, any simple modification, equivalent change and modification of the above embodiments made in accordance with the technical essence of the present application, without departing from the technical solution of the present application, all still belong to the scope of protection of the technical solution of the present application.

Claims

1. A sand-falling device for casting automobile parts, characterized by: include: a vibration frame for emitting vibration excitation; A screen plate assembly is assembled in the vibration frame, the screen plate assembly comprising a screen plate mounted in an elastically supported manner and a crushing component for crushing the molding sand. When the screen plate vibrates with the vibration frame, the crushing component cleans and crushes the molding sand in the sieve holes of the screen plate; and a partition mechanism, the partition mechanism comprising two guide plates arranged in parallel and fixed in the vibration frame, a plurality of partition groups located above the screen plate being assembled between the two guide plates; the partition group comprising two partition assemblies mounted on the screen plate assembly for relative sliding movement; when the screen plate vibrates with the vibration frame, the two partition assemblies in the partition group perform a reciprocating motion of relative sliding toward and away from each other under the guidance of the guide plates, the partition assembly and the casting are in flexible collision contact, and the partition assembly assists in cleaning the molding sand on the casting; The sieve plate assembly further comprises: The lattice frame is fixed horizontally in the vibration frame; The sieve plate seat is slidably mounted on the lattice frame; the sieve plate is fixed on the sieve plate seat and is located above the lattice frame; The partition assembly includes: The bottom end of the partition body is slidably mounted on the sieve plate seat; the sieve plate seat is provided with two slide grooves extending along the tilting direction of the vibration frame, and the bottom end of the partition body near both ends is slidably mounted in the two slide grooves; A plurality of cleaning brush plates are detachably mounted on the partition body on the surface facing away from another partition body in the same group; The sieve surface of the sieve plate is fixed with raised cones distributed in an array, and the raised cones and the sieve holes are evenly and alternately distributed on the sieve surface of the sieve plate.

2. The sand-falling device for casting automobile parts according to claim 1, characterized in that: The sieve plate assembly further comprises: Multiple rows of springs are arranged between the sieve plate seat and the lattice frame, and both ends of the springs are fixed on the sieve plate seat and the lattice frame respectively; And a crushing cone, the crushing component is a crushing cone, which is fixed on the upper end surface of the lattice frame, and the crushing cone is correspondingly arranged at at least some of the continuously distributed sieve holes on the screen plate; when the screen plate seat vibrates relative to the lattice frame in the direction of the spring elastic force, the crushing cone passes through the corresponding sieve hole.

3. The sand-falling device for casting automobile parts according to claim 2, characterized in that: The top of the crushing cone is in a cone shape, and a plurality of crushing blades for dispersing molding sand are distributed circumferentially on the crushing cone.

4. The sand-falling device for casting automobile parts according to claim 2, characterized in that: The guide plate is provided with two guide holes arranged opposite to each baffle group, and the two guide holes are arranged in a one-to-one correspondence with the two baffle assemblies in the corresponding baffle group; The diaphragm assembly is guided to move by the guide hole, and the guide hole has a guiding movement component in the sliding direction of the diaphragm assembly.

5. The sand-falling device for casting automobile parts according to claim 4, characterized in that: The partition assembly further includes: Two movable pins are symmetrically arranged and horizontally rotated on both ends of the partition body; the two movable pins move along the guide holes correspondingly arranged on the two guide plates; And a plurality of partition plates are relatively vertically fixed on the plate surface on the same side of the partition plate body and the cleaning brush plate, and two adjacent cleaning brush plates are separated by the partition plate.

6. The sand-falling device for casting automobile parts according to claim 1, characterized in that: The top end portion of the partition body is bent toward another partition body in the same group, and a guide roller is horizontally rotatably mounted on the top bent portion of the partition body.

7. The sand-falling device for casting automobile parts according to claim 1, characterized in that: A material hole plate is fixed on the lower end surface of the sieve plate. A material drop hole is opened on the material hole plate corresponding to each crushing cone. The material drop hole is arranged opposite to the sieve hole, and the crushing cone is located in the material drop hole.

8. The sand-falling device for casting automobile parts according to claim 2, characterized in that: The vibration frame includes: A base, on which the lattice frame is fixed; and a frame body fixed on the base, wherein the screen plate assembly and the partition plate assembly are both located in the frame body; and the guide plate is fixed on the inner side wall of the frame body.

9. The sand-falling device for casting automobile parts according to claim 1, characterized in that: A gap is reserved between the bottom end of the partition body and the screen plate for molding sand to pass through.

Images