Molding machine for automobile part machining

Abstract

The invention relates to the technical field of molding machines, and provides a molding machine for automobile part machining, which comprises a machine body and a pattern movably arranged on the machine body through a moving frame, and further comprises a sand shooting molding mechanism, a vibration motor, a turnover mechanism, a purging pipe, a sweeping mechanism and a dust collection assembly, the sand shooting molding mechanism is used for being matched with a pattern to carry out sand filling molding, the vibration motor is installed on the sand shooting molding mechanism, the overturning mechanism is arranged on the moving frame and used for overturning the pattern, the blowing pipe is fixedly installed on the machine body and communicated with a spray head used for blowing gas to the lower portion of the pattern, and the cleaning mechanism is arranged on the moving frame and used for cleaning the pattern. The cleaning assembly is used for cleaning the sand shooting molding mechanism, and the dust collecting assembly is used for collecting redundant sand grains. By means of the technical scheme, the technical problem that in the prior art, molding sand is left on the surface of a sand box or a mold sample after molding, and the machining environment and subsequent molding are affected is solved.

Description

Technical Field

[0001] Embodiments of the present invention relate to the technical field of molding machines, and specifically, to a molding machine for machining automotive parts. Background Art

[0002] A molding machine is a casting device used to manufacture sand molds. Its main functions are sand filling, compacting the molding sand, and mold withdrawal. Sand filling is to fill the loose molding sand into the sand box; compacting the molding sand is to compact the loose molding sand in the sand box by different methods such as vibration compaction, pressure compaction, vibration-pressure compaction, and injection compaction, so that the sand mold has the necessary strength during processes such as transportation and pouring; mold withdrawal is to use different mechanisms to remove the pattern from the compacted sand mold, and it is widely used in the machining of automotive parts. 15%-20% of the parts in an automobile are processed by casting.

[0003] In the existing molding machines, during the molding process, there will be a situation where the molding sand adheres to the sand box or the pattern, and it is necessary to blow the sand box and the pattern. Currently, generally, the processing personnel use a high-pressure nozzle for blowing, but the blown sand grains will affect the surrounding environment and even endanger the physical health of the processing personnel. In addition, manual blowing also increases the workload of the processing personnel. Even after blowing, there will still be some molding sand remaining at the edge of the sand box, which will be mixed into the new sand during the subsequent molding process. Since the moisture of the remaining molding sand is lost and the viscosity decreases, it will affect the molding quality. Summary of the Invention

[0004] To overcome the above defects, the present invention provides a molding machine for machining automotive parts, which is used to solve the technical problem that in the prior art, there is molding sand remaining on the surface of the sand box or the pattern after molding, which affects the processing environment and subsequent molding.

[0005] According to one aspect, at least one embodiment of the present invention provides a molding machine for machining automotive parts, including a machine body and a pattern. The pattern is movably arranged on the machine body through a moving frame, and further includes: An injection sand molding mechanism, which is used to cooperate with the pattern for sand filling and molding. The injection sand molding mechanism includes: An upper injection sand cylinder and a lower injection sand cylinder. The upper injection sand cylinder is liftably arranged on the machine body, the lower injection sand cylinder is fixedly installed on the machine body, the lower injection sand cylinder is located below the upper injection sand cylinder, the pattern is located between the upper injection sand cylinder and the lower injection sand cylinder, and a plurality of sand injection ports are opened on both the upper injection sand cylinder and the lower injection sand cylinder; An upper sand box and a lower sand box. The upper sand box is liftably arranged on the upper injection sand cylinder, and the upper injection sand cylinder and the upper sand box are in sealed sliding fit. The lower sand box is liftably arranged on the machine body, and the lower injection sand cylinder and the lower sand box are in sealed sliding fit; A vibration motor, which is installed on the sand shooting and molding mechanism; A flipping mechanism, which is arranged on the moving frame and is used for flipping the pattern. The flipping mechanism includes: A flipping plate, which is rotatably arranged on the moving frame through a driving shaft; A locking plate, which is movably and rotatably arranged on the moving frame; Fixed blocks, which are fixedly connected to both sides of the pattern. Fixed slots matching the fixed blocks are provided on both the flipping plate and the locking plate; A purging pipe, which is fixedly installed on the machine body and is communicated with a nozzle for spraying gas downward onto the pattern; A cleaning mechanism, which is arranged on the moving frame and is used for cleaning the sand shooting and molding mechanism. The cleaning mechanism includes: A cleaning frame, which is movably arranged on the moving frame; A cleaning brush, which is rotatably arranged on the cleaning frame. The cleaning brush contacts the bottom end of the upper sand box and the top end of the lower sand box. A cleaning shaft is rotatably arranged on the cleaning frame, and the cleaning brush is detachably connected to the outside of the cleaning shaft; A dust collection assembly, which is used for collecting excess sand grains. The dust collection assembly includes: Dust collection covers, there are two dust collection covers, which are movably arranged on the machine body, and the sand shooting and molding mechanism and the pattern are both located inside the two dust collection covers; A dust collection box, which is communicated with the dust collection cover through a dust collection pipe, and the dust collection box is communicated with a vacuum pump.

[0006] To facilitate the separation of the pattern and the sand mold, a lubricating pipe is installed on the machine body, and the lubricating pipe is communicated with a nozzle for spraying lubricant upward onto the pattern.

[0007] To facilitate the separation of the sand mold from the upper sand box and the lower sand box, air bags are fixedly connected to the inner walls of the upper sand box and the lower sand box, and the air bags are communicated with a blow-suction dual-purpose air pump.

[0008] The beneficial effects of the embodiments of the present invention are: 1. In the present invention, the pattern is driven by a moving frame to move to the sand shooting and molding mechanism. Through the cooperation of the sand shooting and molding mechanism and the pattern, sand shooting and compaction are carried out to manufacture a suitable sand mold. Then, the pattern moves to a position away from the sand shooting and molding mechanism. The lower part of the pattern is purged through a purging pipe, and the surface of the sand shooting and molding mechanism is cleaned through a cleaning assembly, reducing the residue of sand grains on the pattern and the sand shooting and molding mechanism, thereby reducing the impact on subsequent molding work. The sand grains, dust, etc. generated during cleaning are collected by a dust collection assembly, reducing the impact on the processing environment.

[0009] Between the upper sand shooting cylinder and the lower sand shooting cylinder, the upper sand box descends, the lower sand box ascends and closely adheres to the pattern. The upper sand shooting cylinder and the lower sand shooting cylinder shoot sand into the upper sand box and the lower sand box. Then, the upper sand shooting cylinder and the lower sand shooting cylinder apply pressure to the molding sand to form a sand mold. The upper sand box and the upper sand shooting cylinder ascend, driving the pattern to separate from the sand mold. The pattern moves away, and the lower sand box descends to separate the molding sand from the lower sand box, and then...

[0010] 2. In the present invention, the pattern is flipped by a flipping mechanism so that both sides of the pattern can be purged. Moreover, the purging pipe purges the lower part of the pattern, facilitating the detachment of sand grains from the pattern and preventing the purged pattern from falling back onto the pattern surface, thereby improving the cleaning effect of the pattern. At the same time, the dust collection assembly timely collects the purged sand grains, reducing the impact of sand grains on subsequent molding processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the drawings in the following description are only some exemplary embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the content of the exemplary embodiments of the present invention and these drawings.

[0012] Figure 1 It is a schematic structural diagram of the overall first perspective in an embodiment of the present invention; Figure 2 is Figure 1 a schematic structural diagram of a partial cross-section in the embodiment of...; Figure 3 is Figure 1 a schematic structural diagram of the machine body, pattern, sand shooting and molding mechanism, and flipping mechanism in the embodiment of...; Figure 4 is Figure 1 a schematic structural diagram of the first perspective of the support frame, stop block, upper sand shooting cylinder, and lower sand shooting cylinder in the embodiment of...; Figure 5 is Figure 1 a schematic structural diagram of the second perspective of the support frame, stop block, upper sand shooting cylinder, and lower sand shooting cylinder in the embodiment of...; Figure 6 In the embodiment of Figure 1 Schematic structural diagram of the pattern, moving frame, flipping mechanism and cleaning component; Figure 7 In the embodiment of Figure 1 Schematic structural diagram of the pattern, moving frame and flipping mechanism; Figure 8 In the embodiment of Figure 1 Schematic structural diagram of the vibration motor, airbag, air pump for both blowing and suction, and upper sand box; Figure 9 In the embodiment of Figure 1 Schematic structural diagram of the overall second perspective; Figure 10 In the embodiment of Figure 2 Partial enlarged structural diagram at position A in Figure 11 In the embodiment of Figure 6 Partial enlarged structural diagram at position B in

[0013] In the figure: 1. Machine body; 2. Pattern; 3. Moving frame; 4. Support frame; 5. Stopper; 6. Electric cylinder three; 7. Limiting frame; 8. Vibration motor; 9. Blowing pipe; 10. Lubricating pipe; 11. Airbag; 12. Air pump for both blowing and suction; 101. Upper sand injection cylinder; 102. Lower sand injection cylinder; 103. Upper sand box; 104. Lower sand box; 105. Hydraulic cylinder; 106. Electric cylinder one; 107. Electric cylinder two; 201. Flipping plate; 202. Locking plate; 203. Fixed block; 204. Driving shaft; 205. Electric cylinder four; 206. Driving rack; 207. Driven gear; 208. Rotating shaft; 209. Moving plate; 301. Cleaning frame; 302. Cleaning brush; 303. Screw feed mechanism; 304. Cleaning shaft; 305. Motor; 401. Dust collection hood; 402. Dust collection box; 403. Electric cylinder five; 404. Vacuum pump. Detailed implementation manners The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention.

[0014] For the sake of simplicity of the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, for the sake of simplicity and easy understanding of the drawings, in some figures, for components with the same structure or function, only one of them is schematically shown, or only one of them is labeled. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0015] In this article, it should be noted that unless otherwise clearly stipulated and defined, the terms "install", "connect", and "join" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0016] In the present invention, unless otherwise clearly stipulated and defined, the first feature being "above" or "below" the second feature can include the direct contact between the first and second features, or can also include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the horizontal height of the first feature is lower than that of the second feature.

[0017] In the description of this embodiment, the orientation or positional relationship such as "above", "below", "left", and "right" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention.

[0018] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions, and cannot be understood as indicating or implying relative importance.

[0019] Such as Figures 1 to 11As shown, it shows a molding machine for machining automotive parts in an embodiment of the present invention, including a machine body 1 and a pattern 2. The pattern 2 is movably arranged on the machine body 1 through a moving frame 3. It further includes a sand shooting and molding mechanism, a vibration motor 8, a flipping mechanism, a purging pipe 9, a cleaning mechanism and a dust collection assembly. In this application, the moving frame 3 drives the pattern 2 to move to the sand shooting and molding mechanism, and through the cooperation of the sand shooting and molding mechanism and the pattern 2, sand shooting and compaction are carried out to manufacture a suitable sand mold. Then the pattern 2 moves to a position away from the sand shooting and molding mechanism, and the purging pipe 9 purges the lower part of the pattern 2, and the cleaning assembly cleans the surface of the sand shooting and molding mechanism to reduce the residue of sand grains on the pattern 2 and the sand shooting and molding mechanism, thereby reducing the impact on subsequent molding work. The sand grains, dust, etc. generated by cleaning are collected by the dust collection assembly to reduce the impact on the processing environment. At the same time, the flipping mechanism flips the pattern 2 so that both sides of the pattern 2 can be purged, and the purging pipe 9 purges the lower part of the pattern 2, which is convenient for the sand grains to detach from the pattern 2 and avoids the purged pattern 2 from falling back onto the surface of the pattern 2 again, thereby improving the cleaning effect on the pattern 2. At the same time, the dust collection assembly timely collects the purged sand grains to reduce the impact of the sand grains on subsequent molding processing.

[0020] As Figures 1 to 5As shown in the figure, the sand shooting molding mechanism is used to cooperate with the pattern 2 for sand filling molding. The sand shooting molding mechanism includes an upper sand shooting cylinder 101, a lower sand shooting cylinder 102, an upper sand box 103 and a lower sand box 104. The upper sand shooting cylinder 101 is arranged on the machine body 1 in a liftable manner. A hydraulic cylinder 105 is installed at the top of the machine body 1, and the upper sand shooting cylinder 101 is installed at the output end of the hydraulic cylinder 105. The lower sand shooting cylinder 102 is fixedly installed on the machine body 1, and the lower sand shooting cylinder 102 is located below the upper sand shooting cylinder 101. The pattern 2 is located between the upper sand shooting cylinder 101 and the lower sand shooting cylinder 102. A plurality of sand shooting ports are provided on both the upper sand shooting cylinder 101 and the lower sand shooting cylinder 102. The upper sand box 103 is arranged on the upper sand shooting cylinder 101 in a liftable manner, and the upper sand shooting cylinder 101 and the upper sand box 103 are in sealed sliding fit. An electric cylinder 106 is installed on the upper sand shooting cylinder 101, and the upper sand box 103 is fixedly installed at the output end of the electric cylinder 106. The lower sand box 104 is arranged on the machine body 1 in a liftable manner, and the lower sand shooting cylinder 102 and the lower sand box 104 are in sealed sliding fit. An electric cylinder 107 is installed on the machine body 1, and the lower sand box 104 is fixedly installed at the output end of the electric cylinder 107. The hydraulic cylinder 105 can drive the upper sand shooting cylinder 101 to lift, and the upper sand shooting cylinder 101 drives the upper sand box 103 to lift accordingly. A support frame 4 is fixedly connected to the bottom end of the upper sand box 103. The moving frame 3 and the support frame 4 are in sliding fit, and a stop block 5 is fixedly connected to the support frame 4. An electric cylinder 6 is installed on the machine body 1, and a limit frame 7 is fixedly connected to the output end of the electric cylinder 6. The moving frame 3 and the limit frame 7 are in sliding fit. The electric cylinder 6 can drive the limit frame 7 and the moving frame 3 to move towards the molding position, move the pattern 2 between the upper sand box 103 and the lower sand box 104. The hydraulic cylinder 105 drives the upper sand shooting cylinder 101 and the upper sand box 103 to descend, and at the same time drives the pattern 2 to descend. The electric cylinder 107 drives the lower sand box 104 to rise, and the top end of the pattern 2 is in close contact with the lower sand box 104. The electric cylinder 106 drives the upper sand box 103 to descend and contact the top end of the pattern 2. The upper sand shooting cylinder 101 and the lower sand shooting cylinder 102 are respectively located inside the upper sand box 103 and the lower sand box 104. The upper sand shooting cylinder 101 and the lower sand shooting cylinder 102 spray sand into the upper sand box 103 and the lower sand box 104. After a certain period of time, the sand spraying stops. The hydraulic cylinder 105 drives the upper sand shooting cylinder 101 to descend to compact the molding sand. Then the hydraulic cylinder 105 drives the upper sand shooting cylinder 101 and the upper sand box 103 to rise. The electric cylinder 6 drives the pattern 2 away from the molding area. The electric cylinder 107 drives the lower sand box 104 to descend to expose the sand mold. The electric cylinder 106 drives the upper sand box 103 to rise to make the sand mold fall on the upper part of the lower sand mold. Then the sand mold can be pushed. The structures and principles of the upper sand shooting cylinder 101 and the lower sand shooting cylinder 102 are well-known prior arts to those skilled in the art and are not the innovation points of this application, so they will not be elaborated here.

[0021] The vibration motor 8 is installed on the sand shooting molding mechanism. Specifically, the vibration motor 8 is installed on the lower sand box 104. By means of the vibration motor 8, the upper sand box 103, the lower sand box 104, the upper sand shooting cylinder 101, the lower sand shooting cylinder 102 and the pattern 2 can be driven to vibrate, so that the molding sand is evenly laid inside the upper sand box 103 and the lower sand box 104 during the sand filling process, and after compaction, the molding sand is separated from the upper sand box 103, the lower sand box 104, the upper sand shooting cylinder 101, the lower sand shooting cylinder 102 and the pattern 2, reducing the adhesion of the molding sand.

[0022] As Figures 6 to 7 shown, the flipping mechanism is arranged on the moving frame 3 and is used for flipping the pattern 2. The flipping mechanism includes a flipping plate 201, a locking plate 202 and a fixing block 203. The flipping plate 201 is rotatably arranged on the moving frame 3 through a driving shaft 204. An electric cylinder four 205 is installed on the moving frame 3. The output end of the electric cylinder four 205 is fixedly connected with a driving rack 206. The end of the driving shaft 204 is fixedly connected with a driven gear 207. The driven gear meshes with the driving rack 206. The locking plate 202 is movably and rotatably arranged on the moving frame 3. The locking plate 202 is rotatably connected with a rotating shaft 208. The rotating shaft 208 is fixedly connected with a moving plate 209. The moving plate 209 is detachably connected with the moving frame 3 through a locking bolt. The fixing blocks 203 are fixedly connected to both sides of the pattern 2. Fixing grooves matching the fixing blocks 203 are formed in both the flipping plate 201 and the locking plate 202. The pattern 2 is placed between the flipping plate 201 and the locking plate 202. The fixing blocks 203 are placed inside the fixing grooves to make the pattern 2 close to the flipping plate 201. By tightening the locking bolt, the locking plate 202 can be driven to approach the pattern 2, so that the other fixing blocks 203 are inserted into the fixing grooves on the locking plate 202. The pattern 2 is fixedly locked through the cooperation of the locking plate 202 and the flipping plate 201. The driving rack 206 can be driven to move by the electric cylinder four 205, thereby driving the driven gear 207 and the driving shaft 204 to rotate, and driving the flipping plate 201 to flip the pattern 2.

[0023] The purging pipe 9 is fixedly installed on the machine body 1. The purging pipe 9 is communicated with a nozzle for blowing gas downward to the pattern 2. The purging pipe 9 is communicated with an external air supply device. Air is supplied into the purging pipe 9 through the air supply device, and the lower part of the pattern 2 is purged through the nozzle. The nozzle faces away from the molding area. When purging the pattern 2, the flying dust is blown to a position away from the molding area, reducing the influence on molding. Moreover, the purging pipe 9 purges the lower part of the pattern 2, and the falling flying dust drops, reducing the residue above the pattern 2. The pattern 2 is flipped through a flipping mechanism, and in cooperation with the purging pipe 9, comprehensive purging of the pattern 2 is achieved, while reducing the residue of molding sand. To facilitate the separation of the pattern 2 from the sand mold, a lubricating pipe 10 is installed on the machine body 1. The lubricating pipe 10 is communicated with a nozzle for spraying lubricant upward to the pattern 2. Anti-adhesion materials, such as graphite powder, lycopodium powder, talcum powder, etc., are sprayed on the surface of the pattern 2 through the lubricating pipe 10 and the nozzle. The anti-adhesion film material is sprayed on the upper part of the pattern 2 to facilitate its adhesion to the surface of the pattern 2 and form an anti-adhesion coating, thereby reducing the adhesion of subsequent molding sand to the pattern 2.

[0024] As Figure 6 and Figure 10As shown in the figure, the cleaning mechanism is arranged on the moving frame 3 and is used to clean the sand shooting molding mechanism. The cleaning mechanism includes a cleaning frame 301 and a cleaning brush 302. The cleaning frame 301 is movably arranged on the moving frame 3. A lead screw feeding mechanism 303 is installed on the moving frame 3. The cleaning frame 301 is fixedly arranged on the lead screw nut in the lead screw feeding mechanism 303. The cleaning brush 302 is rotatably arranged on the cleaning frame 301. The cleaning brush 302 contacts the bottom end of the upper sand box 103 and the top end of the lower sand box 104. A cleaning shaft 304 is rotatably arranged on the cleaning frame 301. The cleaning brush 302 is detachably connected to the outside of the cleaning shaft 304 through a magic tape. A motor 305 is installed on the cleaning frame 301. The cleaning shaft 304 is fixedly connected to the output end of the motor 305. When the pattern 2 moves to a position away from the molding area, that is, away from the upper sand box 103 and the lower sand box 104, the cleaning frame 301 is in the molding position. When the cleaning frame 301 is at the end of the lead screw feeding mechanism 303, it is away from the upper sand box 103 to avoid hindering the molding work. When it is necessary to clean the upper sand box 103, etc., the hydraulic cylinder 105 and the first electric cylinder 106 drive the upper sand box 103 and the upper sand shooting cylinder 101 to lift to the same horizontal plane and contact the top of the cleaning brush 302. At this time, the pattern 2 and the cleaning frame 301 are in the lowest position. The second electric cylinder 107 drives the top end of the lower sand box 104 to be flush with the top end of the lower sand shooting cylinder 102 and contact the bottom end of the cleaning brush 302. The lead screw feeding mechanism 303 drives the cleaning frame 301 to move towards the molding position. The motor 305 drives the cleaning shaft 304 and the cleaning brush 302 to rotate, cleaning the surfaces of the upper sand box 103, the upper sand shooting cylinder 101, the lower sand box 104, and the lower sand shooting cylinder 102. And as the cleaning brush 302 rotates, the residue of sand grains in the cleaning brush 302 is reduced. The cleaning brush 302 can be conveniently disassembled and assembled through the magic tape, and can be regularly disassembled and replaced to ensure its cleaning effect.

[0025] As Figures 1 to 2As shown in the figure, the dust collection component is used to collect excess sand grains. The dust collection component includes a dust collection hood 401 and a dust collection box 402. There are two dust collection hoods 401. The dust collection hood 401 is movably arranged on the machine body 1. Two electric cylinders five 403 are installed on the machine body 1. The dust collection hood 401 and the electric cylinder five 403 correspond one by one. The dust collection hood 401 is fixedly installed at the output end of the electric cylinder five 403. The sand shooting molding mechanism and the pattern 2 are both located inside the two dust collection hoods 401. The dust collection box 402 is communicated with the dust collection hood 401 through a dust collection pipe. The dust collection box 402 is communicated with a vacuum pump 404. The two electric cylinders five 403 move relatively, so that the two dust collection hoods 401 enclose the molding area and the pattern 2. The vacuum pump 404 sucks air into the dust collection box 402, so that the sand grains generated by molding, purging and cleaning are sucked into the dust collection box 402 through the dust collection pipe and the dust collection hood 401 for collection. A dust-proof net is installed at the connection position between the vacuum pump 404 and the dust collection box 402 to prevent sand grains from entering the vacuum pump 404 and causing damage to it. The sand grains in the dust collection box 402 are regularly cleaned out for reuse in subsequent molding work. When the sand mold needs to be pushed out after molding, the two dust collection hoods 401 are driven by the electric cylinder five 403 to move away from each other to avoid blocking the movement of the sand mold.

[0026] As Figure 8 shown, for the convenience of separating the sand mold, the upper sand box 103 and the lower sand box 104, air bags 11 are fixedly connected to the inner walls of the upper sand box 103 and the lower sand box 104. The air bags 11 are communicated with a blow-suction air pump 12. During the sand shooting molding process, the blow-suction air pump 12 sucks air from the air bags 11 to make them in a vacuum flat state, and the air bags 11 are in close contact with the inner walls of the upper sand box 103 and the lower sand box 104. When the molding is compacted, the blow-suction air pump 12 sends air into the air bags 11. The gap between the two side walls of the air bags 11 is small. After the air bags 11 bulge, a small push is generated on the sand mold. Then the blow-suction air pump 12 sucks air from the air bags 11 again to make the air bags 11 return to the state of being in close contact with the upper sand box 103 and the lower sand box 104, so that there is a small gap between the sand mold and the upper sand box 103 and the lower sand box 104, which is convenient for the sand mold to be taken out.

[0027] The working principle or usage process of this molding machine for automotive part processing is as follows: Initially, the lower sand box 104 is at a position flush with the top of the lower sand shooting cylinder 102. The electric cylinder three 6 drives the limit frame 7 and the moving frame 3 to move to the molding position, driving the pattern 2 to move between the upper sand box 103 and the lower sand box 104. The moving frame 3 contacts the stopper 5 on the upper sand box 103. At this time, the positions of the pattern 2 correspond to those of the upper sand shooting cylinder 101 and the lower sand shooting cylinder 102. The hydraulic cylinder 105 drives the upper sand injection cylinder 101 and the upper sand box 103 to descend. The second electric cylinder 107 drives the lower sand box 104 to ascend to seal the lower sand injection cylinder 102 and support the pattern 2. The first electric cylinder 106 drives the upper sand box 103 to descend and press against the pattern 2. Then, the upper sand injection cylinder 101 and the lower sand injection cylinder 102 inject sand into the interiors of the upper sand box 103 and the lower sand box 104. The vibration motor 8 is started to drive the upper sand injection cylinder 101, the lower sand injection cylinder 102, the upper sand box 103, the lower sand box 104, and the pattern 2 to vibrate, so that the molding sand evenly fills the upper sand box 103 and the lower sand box 104; After sand injection for a certain period of time, the sand injection stops. The hydraulic cylinder 105 drives the upper sand injection cylinder 101 to descend to compact the molding sand. Under the combined action of the upper sand injection cylinder 101, the lower sand injection cylinder 102, the upper sand box 103, the lower sand box 104, and the pattern 2, the molding sand is formed. Then, the vibration motor 8 drives the upper sand injection cylinder 101, the lower sand injection cylinder 102, the upper sand box 103, the lower sand box 104, and the pattern 2 to vibrate, so that the molding sand is separated from the sand injection molding mechanism. At the same time, the two-way air pump 12 blows air into the air bag 11 to make the sand mold away from the upper sand box 103 and the lower sand box 104. Then, the two-way air pump 12 evacuates the air bag 11 to a vacuum to make it stick tightly to the inner walls of the upper sand box 103 and the lower sand box 104; The hydraulic cylinder 105 drives the upper sand box 103, the upper sand injection cylinder 101, and the pattern 2 to ascend. The third electric cylinder 6 drives the pattern 2 away from the molding position. The second electric cylinder 107 drives the lower sand box 104 to descend to expose the lower sand mold. Then, the hydraulic cylinder 105 drives the upper sand injection cylinder 101 and the upper sand box 103 to descend to make the upper sand mold and the lower sand mold stick together. The first electric cylinder 106 drives the upper sand box 103 to ascend to expose the upper sand mold. Then, the sand mold is pushed out onto the transportation system for conveyance; When the pattern 2 moves away from the molding area, the purging pipe 9 blows air through the nozzle to blow off the sand grains under the pattern 2. Then, the fourth electric cylinder 205 drives the driving rack 206 to move to flip the pattern 2. The third electric cylinder 6 drives the pattern 2 to move. The purging pipe 9 and the nozzle purge the other side of the pattern 2. At the same time, the lubricating pipe 10 and the nozzle spray an anti-adhesion mold material on the side of the pattern 2 that has been purged. The fourth electric cylinder 205 drives the driving rack 206 to move back to the original position to flip the pattern 2 back. The lubricating pipe 10 and the nozzle spray an anti-adhesion mold material on the other side of the pattern 2 to prepare for subsequent molding; When the moving frame 3 and the pattern 2 move, the cleaning frame 301 moves between the upper sand box 103 and the lower sand box 104. The top and bottom positions of the sand shooting and molding mechanism and the cleaning brush 302 are made to correspond through the hydraulic cylinder 105, the first electric cylinder 106 and the second electric cylinder 107. The lead screw feeding mechanism 303 drives the cleaning frame 301 to move, and the motor 305 drives the cleaning shaft 304 and the cleaning brush 302 to rotate to clean the surfaces of the upper sand shooting cylinder 101, the lower sand shooting cylinder 102, the upper sand box 103 and the lower sand box 104. After the cleaning is completed, the cleaning frame 301 moves to one end of the lead screw feeding mechanism 303 and is outside the molding position to avoid hindering the molding. During the purging and cleaning process, the two dust collection hoods 401 are in a state of being closely attached to each other to enclose the sand shooting and molding mechanism and the pattern 2. The vacuum pump 404 sucks air into the dust collection box 402 and the dust collection hoods 401 to suck the sand grains generated by the purging and cleaning into the interior of the dust collection box 402 for collection. When it is necessary to push out the molded sand mold, the fifth electric cylinder 403 drives the two dust collection hoods 401 to move away from each other, and the sand mold can be pushed out.

[0028] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A molding machine for machining automotive parts, comprising a machine body (1) and a pattern (2), characterized in that, The pattern (2) is movably arranged on the machine body (1) through a moving frame (3), and further includes: A sand shooting and molding mechanism for cooperating with the pattern (2) to perform sand filling and molding; A vibration motor (8) installed on the sand shooting and molding mechanism; A turning mechanism arranged on the moving frame (3) for turning the pattern (2); A purging pipe (9) fixedly installed on the machine body (1), and the purging pipe (9) is communicated with a nozzle for spraying gas downward to the pattern (2); A cleaning mechanism arranged on the moving frame (3) for cleaning the sand shooting and molding mechanism; A dust collection assembly for collecting excess sand grains.

2. The profiling machine for machining automotive parts according to claim 1, characterized in that, The sand shooting and molding mechanism includes: An upper sand shooting cylinder (101) and a lower sand shooting cylinder (102). The upper sand shooting cylinder (101) is arranged on the machine body (1) in a liftable manner, the lower sand shooting cylinder (102) is fixedly installed on the machine body (1), the lower sand shooting cylinder (102) is located below the upper sand shooting cylinder (101), the pattern (2) is located between the upper sand shooting cylinder (101) and the lower sand shooting cylinder (102), and a plurality of sand shooting ports are provided on both the upper sand shooting cylinder (101) and the lower sand shooting cylinder (102); An upper sand box (103) and a lower sand box (104). The upper sand box (103) is arranged on the upper sand shooting cylinder (101) in a liftable manner, and the upper sand shooting cylinder (101) and the upper sand box (103) are in sealed sliding fit. The lower sand box (104) is arranged on the machine body (1) in a liftable manner, and the lower sand shooting cylinder (102) and the lower sand box (104) are in sealed sliding fit.

3. The molding machine for processing automotive parts according to claim 2, characterized in that, The turning mechanism includes: A turning plate (201) rotatably arranged on the moving frame (3) through a driving shaft (204); A locking plate (202) movably and rotatably arranged on the moving frame (3); Fixed blocks (203) fixedly connected to both sides of the pattern (2), and fixing grooves matching the fixed blocks (203) are provided on both the turning plate (201) and the locking plate (202).

4. The molding machine for processing automotive parts according to claim 3, characterized in that, The cleaning mechanism includes: A cleaning frame (301) movably arranged on the moving frame (3); A cleaning brush (302) rotatably arranged on the cleaning frame (301), and the cleaning brush (302) contacts the bottom end of the upper sand box (103) and the top end of the lower sand box (104).

5. The molding machine for processing automotive parts according to claim 4, characterized in that, The dust collection assembly includes: Two dust collection covers (401). The dust collection covers (401) are movably arranged on the machine body (1), and the sand shooting and molding mechanism and the pattern (2) are both located inside the two dust collection covers (401); A dust collection box (402), the dust collection box (402) is communicated with the dust collection hood (401) through a dust collection pipe, and a vacuum pump (404) is communicated with the dust collection box (402).

6. A profiling machine for machining automotive parts according to claim 5, characterized in that, A lubricating pipe (10) is installed on the machine body (1), and the lubricating pipe (10) is communicated with a spray head for spraying lubricant above the pattern (2).

7. The molding machine for processing automotive parts according to claim 6, characterized in that, A cleaning shaft (304) is rotatably arranged on the cleaning frame (301), and the cleaning brush (302) is detachably connected to the outside of the cleaning shaft (304).

8. The molding machine for processing automotive parts according to claim 7, wherein Air bags (11) are fixedly connected to the inner walls of the upper sand box (103) and the lower sand box (104), and the air bags (11) are communicated with a two-way air pump (12) for blowing and sucking.

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