Shakeout treatment device used after sand mold casting molding

Abstract

The invention discloses a shakeout treatment device used after sand mold casting forming, relates to the technical field of sand mold casting, and aims to solve the technical problems that traditional sand mold casting equipment is lack of crushing and screening before shakeout, large-particle sand is prone to blocking a casting part, the equipment is stuck and damaged, and the service life and safety are affected. Comprising a treatment barrel, a feeding port formed in the upper portion of the treatment barrel, an isolation plate located below the treatment barrel, a motor, a draught fan and a pressure valve, and the motor is located below the treatment barrel. According to the device, the secondary crushing assembly and the pressing assembly are designed, so that the device can accelerate discharge of sand and stones in a mode of synchronous cooperation of gas pushing and ground attraction force, the effect of guaranteeing the use safety and the machining quality of the device is achieved, and meanwhile, by means of multiple times of shakeout treatment, the machining efficiency is improved. And therefore, the situation that the shakeout is blocked in the alloy casting due to uneven shakeout volume during follow-up secondary utilization of the shakeout is reduced, and the effect of guaranteeing the machining quality of the alloy casting is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of sand casting, and more specifically, to a shakeout device for sand casting after molding. Background Art

[0002] When processing alloys or castings, a shakeout device is needed to remove the solidified alloy from the sand mold and remove the molding sand attached to its surface. Through a specific working mechanism, this device can effectively separate the casting from the molding sand, providing convenient conditions for subsequent cleaning and processing procedures. In the specific process of shakeout treatment, for the separated shakeout sand, systematic collection work needs to be carried out and secondary processing is carried out on it. After such treatment, the shakeout sand can be reused, which can be reused in subsequent alloy and casting processing links, thereby achieving the purpose of reducing production costs and improving resource utilization rates.

[0003] Chinese patent document (CN115194131B) discloses a shakeout device for sand casting, which states in the specification that "including a feed inlet, the lower surface of the feed inlet is fixedly connected with an outer cover, the lower surface of the outer cover is fixedly connected with a base, and a crusher is rotatably connected inside the outer cover. The present invention relates to the technical field of sand casting. By setting a controller, when the device is in use, raw materials fall from the gaps on both sides of the top block. When the device stops being used, the adjusting rod is toggled downward. Since the bottom block is fixed, the lower surface of the side plate contacts the upper surface of the bottom block, and the bottom of the controller is closed. Then the screw is rotated. Under the action of threaded connection, the top block slides downward along the inner surface of the feed inlet until its lower surface contacts and fits with the outer surface of the side plate, and the top of the controller is closed. Through multi-stage sealing, while reducing the spread of noise, the sealing performance of the device is improved, preventing dust from scattering, and solving the problem that when traditional shakeout treatment equipment is crushing, raw materials are prone to scattering and the protective effect of the equipment is poor." However, in actual use, there is still a situation where the screening effect is not good, and it is easy to damage the internal structure when crushing large sand blocks, thereby affecting the service life of the treatment device.

[0004] Before the shakeout step of traditional sand casting equipment, there is a lack of an effective sand crushing and screening link, which leads to untreated sand directly filling the inside of the casting. The large particle sand raw materials mixed in it often block the internal structure of the casting, thereby causing jamming and damage inside the equipment. Such problems not only seriously hinder the smooth progress of the subsequent shakeout process, but also greatly shorten the service life of the equipment and pose potential safety hazards during use. In view of this, we propose a shakeout device for sand casting after molding. Summary of the Invention

[0005] The object of the present invention is to provide a shakeout treatment device for sand casting after molding, so as to solve the technical problems that traditional sand casting equipment lacks crushing and screening before shakeout, large particle sand is easy to block the casting, resulting in equipment jamming and damage, and affecting the service life and safety.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: A shakeout treatment device for sand casting after molding, including a motor, a blower and a pressure valve, further including, A housing mechanism, including a treatment barrel, a feed inlet arranged above the treatment barrel, a partition plate located below the treatment barrel, a motor, a blower and a pressure valve. Among them, the motor is located below the treatment barrel, and the pressure valve is communicated with the treatment barrel; and, a treatment mechanism, including a drive shaft, primary crushing blades arranged outside the drive shaft, a secondary crushing assembly located outside the drive shaft, an isolation cylinder connected to the secondary crushing assembly, baffles located inside the isolation cylinder, a guiding baffle connected to the isolation cylinder, a pressing assembly and a pressure assembly. Among them, the pressing assembly is located above the secondary crushing assembly, the pressure assembly is connected to the isolation cylinder, the pressure assembly is connected to the blower, the drive shaft is connected to the motor, and the secondary crushing assembly and the primary crushing blades are the crushing treatment structures for collecting shakeout sand during casting processing.

[0007] The present invention can accelerate the discharge of sand and gravel through the synchronous cooperation of gas pushing and gravitational attraction, and can quickly process sand and gravel of different volumes, avoiding waste of resources caused by repeated processing of small and medium-sized sand and gravel, thereby ensuring the use safety and processing quality of the device. At the same time, relying on multiple treatments of the shakeout sand, the situation that the uneven volume of the shakeout sand blocks inside the alloy casting during subsequent secondary utilization of the shakeout sand is reduced, thereby ensuring the processing quality of the alloy casting.

[0008] Preferably, the upper part of the treatment barrel is communicated with the feed inlet, the outer wall of the treatment barrel is fixedly connected with the blower, the upper and lower parts of the blower are respectively communicated with two conduits, one of the conduits is communicated with the treatment barrel, a pressure valve is arranged outside the treatment barrel, the outer wall of the treatment barrel is fixedly connected with a plurality of support legs, a discharge port is opened below the treatment barrel, the lower part of the treatment barrel is fixedly connected with two partition plates, and the two partition plates are respectively fixedly connected with the inner diameter and outer diameter of the discharge port, and the upper part of the motor is fixedly connected with the upper part of the treatment barrel.

[0009] Preferably, the outer wall of the drive shaft is fixedly connected with a plurality of primary crushing blades and a secondary crushing assembly respectively, the outer wall of the secondary crushing assembly is fixedly connected with the inner wall of the isolation cylinder, the inner wall of the isolation cylinder is fixedly connected with a plurality of baffles and a plurality of guiding baffles respectively, the pressing assembly is slidably connected outside the drive shaft, and the pressure assembly is fixedly connected with the outer wall of the isolation cylinder.

[0010] Preferably, the primary crushing blades are designed in a spiral shape, the guiding baffle is designed in an inclined shape, the outer wall of the isolation cylinder is fixedly connected to the inner wall of the treatment barrel, and the fan is connected to the space between the isolation cylinder and the treatment barrel through one of the conduits.

[0011] Preferably, the pressure valve is connected to the space between the isolation cylinder and the treatment barrel. The number of the baffle plates is three, and the three baffle plates are located between two adjacent primary crushing blades.

[0012] Preferably, the pressing assembly includes a mounting plate. A plurality of multi-stage telescopic rods are fixedly connected below the mounting plate, and the bottom ends of the plurality of multi-stage telescopic rods are fixedly connected to the mounting groove. The mounting groove is opened above the pressing block. A sealing ring is sleeved outside the multi-stage telescopic rod, and the sealing ring is fixedly connected above the pressing block. A plurality of the pressing blocks are fixedly connected to the same sliding cylinder.

[0013] Preferably, a first spring is sleeved outside the multi-stage telescopic rod. The two ends of the first spring are respectively fixedly connected to the lower part of the inner wall of the mounting groove and the outer wall of the multi-stage telescopic rod. The mounting plate is fixedly connected outside the driving shaft, and the sliding cylinder is sleeved outside the driving shaft.

[0014] Preferably, the secondary crushing assembly includes a crushing shell. The upper part of the crushing shell is lapped with a plurality of crushing blocks. A plurality of friction strips are fixedly connected below the plurality of crushing blocks and above the crushing shell. A plurality of sieve holes are opened below the crushing shell, and a bearing is clamped in the crushing shell; The crushing shell is sleeved outside the driving shaft through the bearing, and the outer wall of the crushing shell is fixedly connected to the inner wall of the isolation cylinder. The shape between the plurality of crushing blocks is adapted to the shape of the pressing block, and the plurality of crushing blocks are all fixedly connected to the driving shaft.

[0015] Preferably, the pressure assembly includes a sealing sleeve. A plurality of through holes are opened in the inner wall of the sealing sleeve. The through holes are used for the sand removal and cleaning in the manufacture of copper castings. A plurality of brackets are fixedly connected in the sealing sleeve, and a sealing cylinder is fixedly connected in each of the plurality of brackets. A sliding rod is slidably connected in the sealing cylinder. One end of the sliding rod is fixedly connected to a sealing block, and the other end of the sliding rod is fixedly connected to a second spring.

[0016] Preferably, the other end of the second spring is fixedly connected to one side of the inner wall of the sealing sleeve. The sliding rod is located in the through hole, and the sealing block passes through the through hole and lapps with the inner wall of the sealing sleeve. The sealing sleeve is fixedly connected in the isolation cylinder. The other end of the fan is connected to the isolation cylinder through a conduit, and the sealing sleeve is communicated with the sealing cylinder.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. By designing a secondary crushing component and a pressing component, after the raw materials enter the processing barrel along the feeding port, they will be directly isolated inside the barrel, sealing the feeding port. The motor drives the drive shaft to operate. The sand and gravel will impact the baffle with the primary crushing blades, and then fall to the secondary crushing component. The medium-sized sand and gravel will fall after being ground by the secondary crushing component, the small-sized sand and gravel will fall directly, and the large-sized sand and gravel will be affected by the components inside the secondary crushing component, enabling the device to accelerate the discharge of sand and gravel through the synchronous cooperation of gas pushing and gravitational attraction, and can quickly process sand and gravel of different volumes, avoiding resource waste caused by repeated processing of small and medium-sized sand and gravel, thus ensuring the safety and processing quality of the device. At the same time, by relying on multiple treatments of the falling sand, it reduces the blockage of the uneven volume of the falling sand inside the alloy casting during subsequent secondary utilization of the falling sand, thereby ensuring the processing quality of the alloy casting.

[0018] 2. The present invention also designs a pressing component. When the drive shaft operates, the medium-sized and large-sized sand and gravel will be inside the crushing shell. At this time, the crushing blocks continuously rub against the medium-sized and large-sized sand and gravel as the drive shaft runs. However, it is difficult for the large-sized sand and gravel to enter between the crushing blocks and the crushing shell, resulting in lower crushing efficiency. As the drive shaft runs, the pressing block will contact the guiding baffle and be pressed downward, causing the pressing block to squeeze the large-sized sand and gravel downward to increase the friction force between the crushing shell and the crushing blocks, completing the crushing of the large-sized sand and gravel. And when the pressing block disengages from the guiding baffle, it quickly resets under the action of the elastic force of the first spring. This process repeats, avoiding the pressing block from affecting the downward movement of the sand and gravel, enabling the sand and gravel to stably enter between the crushing shells. After the sand and gravel enter the crushing shell, not only can the sand and gravel be subjected to secondary crushing treatment, but also for the processing of large-sized sand and gravel, the device can perform three-level treatment, thereby ensuring the efficiency and quality of the device in processing sand and gravel. Through multiple treatment methods, the uniformity of the collected falling sand volume is ensured, avoiding blockage inside the casting during subsequent casting processing and ensuring the processing quality of the casting.

[0019] 3. The present invention also designs a pressure component. When the fan operates, on the one hand, it will extract the air inside the isolation barrel and the processing barrel, making the space between the isolation barrel and the processing barrel in a vacuum state, and continuously inject the extracted gas into the sealing sleeve, causing the pressure inside the sealing sleeve to increase and pushing the sliding rod to move outward. At this time, a large amount of gas is discharged and discharged downward along the isolation barrel, thereby reducing the residence time of the processed sand and gravel in the device, ensuring the efficiency of the device in processing sand and gravel, and avoiding the influence of sand and gravel residue on subsequent processing, thus ensuring the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2Schematic structural diagram of the housing mechanism of the present invention; Figure 3 Schematic cross-sectional structural diagram of the housing mechanism of the present invention; Figure 4 Schematic structural diagram of the secondary crushing assembly of the present invention; Figure 5 Of the present invention Figure 4 Enlarged structural diagram at position A in; Figure 6 Schematic cross-sectional structural diagram of the isolation cylinder of the present invention; Figure 7 Schematic cross-sectional structural diagram of the pressing assembly of the present invention; Figure 8 Schematic cross-sectional structural diagram of the secondary crushing assembly of the present invention.

[0021] Explanation of reference numerals in the figure: 1. Housing mechanism; 2. Processing mechanism; 101. Processing barrel; 102. Feeding port; 103. Fan; 104. Conduit; 105. Pressure valve; 106. Support leg; 107. Discharge port; 108. Isolation plate; 109. Motor; 201. Driving shaft; 202. Primary crushing blade; 203. Baffle; 204. Guide baffle; 205. Pressing assembly; 206. Secondary crushing assembly; 207. Pressure assembly; 208. Isolation cylinder; 2051. Mounting plate; 2052. Multi-section telescopic rod; 2053. Mounting groove; 2054. Pressing block; 2055. Sealing ring; 2056. First spring; 2057. Sliding cylinder; 2061. Crushing shell; 2062. Crushing block; 2063. Friction strip; 2064. Sieve hole; 2065. Bearing; 2071. Sealing sleeve; 2072. Through hole; 2073. Bracket; 2074. Sealing cylinder; 2075. Slide bar; 2076. Sealing block; 2077. Second spring. Detailed implementation manners

[0022] As Figures 1 to 8 shown, a shakeout treatment device for sand mold casting after molding according to the present invention includes a motor 109, a fan 103 and a pressure valve 105, and further includes, A housing mechanism 1, including a processing barrel 101, a feeding port 102 provided above the processing barrel 101, a partition plate 108 located below the processing barrel 101, a motor 109, a blower 103 and a pressure valve 105. Among them, the motor 109 is located below the processing barrel 101, and the pressure valve 105 is connected to the processing barrel 101; and, a processing mechanism 2, including a drive shaft 201, primary crushing blades 202 provided outside the drive shaft 201, a secondary crushing assembly 206 located outside the drive shaft 201, an isolation cylinder 208 connected to the secondary crushing assembly 206, a baffle 203 located inside the isolation cylinder 208, a guiding baffle 204 connected to the isolation cylinder 208, a pressing assembly 205 and a pressure assembly 205. Among them, the pressing assembly 205 is located above the secondary crushing assembly 206, the pressure assembly 205 is connected to the isolation cylinder 208, the pressure assembly 205 is connected to the blower 103, the drive shaft 201 is connected to the motor 109, and the secondary crushing assembly 206 and the primary crushing blades 202 are structures for crushing and processing the collected falling sand during casting processing. After the raw material enters the processing barrel 101 along the feeding port 102, it will directly enter the isolation cylinder 208, and the feeding port 102 is sealed. At this time, the motor 109 drives the drive shaft 201 to operate, so that the drive shaft 201 conveys the sand and gravel downward through the primary crushing blades 202. During this process, the sand and gravel will move along with the rotation of the primary crushing blades 202 and impact the baffle 203 with the potential energy of its movement, thereby performing primary crushing on the large sand and gravel and making it fall. After falling to the secondary crushing assembly 206, the medium-sized sand and gravel will fall after being ground by the secondary crushing assembly 206, the small sand and gravel will fall directly, and the large sand and gravel will be located inside the secondary crushing assembly 206. At this time, the pressing assembly 205 contacts the guiding baffle 203 and moves downward, thereby impacting the large sand and gravel to increase the friction effect between the large sand and gravel and the secondary crushing assembly 206 and accelerating the crushing. The blower 103 will extract the air between the processing barrel 101 and the isolation cylinder 208 and discharge the air into the pressure assembly 205, so that the pressure assembly 205 discharges air into the isolation cylinder 208, accelerating the discharge of the sand and gravel below, enabling the device to accelerate the discharge of the sand and gravel through the synchronous cooperation of gas pushing and gravitational attraction, and can quickly process sand and gravel of different volumes, avoiding the waste of resources caused by repeated processing of small and medium-sized sand and gravel, and thus ensuring the use safety and processing quality of the device.

[0023] In an embodiment of the present invention, the upper part of the processing barrel 101 is communicated with the feeding port 102. The outer wall of the processing barrel 101 is fixedly connected to the fan 103. The upper and lower parts of the fan 103 are respectively communicated with two conduits 104. One of the conduits 104 is communicated with the processing barrel 101. A pressure valve 105 is arranged outside the processing barrel 101. The outer wall of the processing barrel 101 is fixedly connected to a number of support legs 106. An outlet 107 is provided at the lower part of the processing barrel 101. The lower part of the processing barrel 101 is fixedly connected to two partition plates 108, and the two partition plates 108 are respectively fixedly connected to the inner diameter and outer diameter of the outlet 107. The upper part of the motor 109 is fixedly connected to the upper part of the processing barrel 101. The outer wall of the drive shaft 201 is fixedly connected to a number of primary crushing blades 202 and a secondary crushing assembly 206 respectively. The outer wall of the secondary crushing assembly 206 is fixedly connected to the inner wall of the isolation cylinder 208. The inner wall of the isolation cylinder 208 is fixedly connected to a number of baffle plates 203 and a number of guiding baffle plates 204 respectively. The pressing assembly 205 is slidably connected outside the drive shaft 201. The pressure assembly 205 is fixedly connected to the outer wall of the isolation cylinder 208. The primary crushing blades 202 adopt a spiral design, and the guiding baffle plates 204 adopt an inclined design. The outer wall of the isolation cylinder 208 is fixedly connected to the inner wall of the processing barrel 101. The fan 103 is communicated with the space between the isolation cylinder 208 and the processing barrel 101 through one of the conduits 104. The pressure valve 105 is communicated with the space between the isolation cylinder 208 and the processing barrel 101. The number of the baffle plates 203 is three, and the three baffle plates 203 are located between two adjacent primary crushing blades 202. When the drive shaft 201 operates, medium-sized and large-sized sandstones are in the crushing shell 2061. At this time, the crushing blocks 2062 continuously rub the medium-sized and large-sized sandstones as the drive shaft 201 operates. However, it is difficult for large-sized sandstones to enter between the crushing blocks 2062 and the crushing shell 2061, resulting in low crushing efficiency. As the drive shaft 201 operates, the pressing block 2054 will contact the guiding baffle plate 204 and be pressed downwards, so that the pressing block 2054 squeezes the large-sized sandstones downwards to increase the friction force between the crushing shell 2061 and the crushing blocks 2062, completing the crushing of the large-sized sandstones. And when the pressing block 2054 disengages from the guiding baffle plate 204, it quickly resets under the elastic force of the first spring 2056. This process repeats, preventing the pressing block 2054 from affecting the downward movement of the sandstones, enabling the sandstones to stably enter between the crushing shells 2061. And after the sandstones enter the crushing shell 2061, not only can the sandstones be subjected to secondary crushing treatment, but also for the processing of large-sized sandstones, the device can perform three-level treatment, thereby ensuring the efficiency and quality of the sandstone processing by the device.

[0024] In an embodiment of the present invention, the pressing assembly 205 includes a mounting plate 2051. A plurality of multi-section telescopic rods 2052 are fixedly connected to the lower side of the mounting plate 2051, and the bottom ends of the plurality of multi-section telescopic rods 2052 are fixedly connected to a mounting groove 2053. The mounting groove 2053 is opened above a pressing block 2054. A sealing ring 2055 is sleeved outside the multi-section telescopic rod 2052. The sealing ring 2055 is fixedly connected above the pressing block 2054. A plurality of pressing blocks 2054 are fixedly connected to the same sliding cylinder 2057. A first spring 2056 is sleeved outside the multi-section telescopic rod 2052. The two ends of the first spring 2056 are respectively fixedly connected to the lower inner wall of the mounting groove 2053 and the outer wall of the multi-section telescopic rod 2052. The mounting plate 2051 is fixedly connected to the outside of the drive shaft 201. The sliding cylinder 2057 is sleeved outside the drive shaft 201. Because there are a crushing shell 2061 and crushing blocks 2062, and the inside of the crushing shell 2061 is designed with a depression, while the crushing blocks 2062 are designed with a protrusion, therefore, it can be ensured that the sand and gravel can stably enter the crushing shell 2061, and the crushing blocks 2062 can be used to more effectively process the sand and gravel. While avoiding the blockage of the sand and gravel, the processing effect of the sand and gravel is ensured.

[0025] As another embodiment of the present invention, the secondary crushing assembly 206 includes a crushing shell 2061. The upper side of the crushing shell 2061 is lapped with a plurality of crushing blocks 2062. A plurality of friction strips 2063 are fixedly connected to the lower sides of the plurality of crushing blocks 2062 and the upper side of the crushing shell 2061. A plurality of sieve holes 2064 are opened in the lower side of the crushing shell 2061. A bearing 2065 is clamped inside the crushing shell 2061. The crushing shell 2061 is sleeved outside the drive shaft 201 through the bearing 2065. The outer wall of the crushing shell 2061 is fixedly connected to the inner wall of the isolation cylinder 208. The shape between the plurality of crushing blocks 2062 is adapted to the shape of the pressing block 2054. A plurality of crushing blocks 2062 are all fixedly connected to the drive shaft 201. When the fan 103 operates, on the one hand, it will extract the air inside the isolation cylinder 208 and the processing barrel 101, so that the space between the isolation cylinder 208 and the processing barrel 101 is in a vacuum state, and the extracted gas is continuously injected into the sealing sleeve 2071, so that the pressure in the sealing sleeve 2071 increases and at the same time pushes the sliding rod 2075 to move outwards. At this time, a large amount of gas is discharged and discharged downward along the isolation cylinder 208, thereby reducing the residence time of the processed sand and gravel in the device, ensuring the processing efficiency of the device for sand and gravel, and avoiding the influence of sand and gravel residue on subsequent processing, and further playing a role in protecting the service life of the device.

[0026] As another embodiment of the present invention, the pressure assembly 205 includes a sealing sleeve 2071. A plurality of through holes 2072 are formed in the inner wall of the sealing sleeve 2071. The through holes 2072 are used for sand removal and cleaning in the manufacture of copper castings. A plurality of brackets 2073 are fixedly connected inside the sealing sleeve 2071, and a sealing cylinder 2074 is fixedly connected inside each of the plurality of brackets 2073. A sliding rod 2075 is slidably connected inside the sealing cylinder 2074. One end of the sliding rod 2075 is fixedly connected to a sealing block 2076, and the other end of the sliding rod 2075 is fixedly connected to a second spring 2077. The other end of the second spring 2077 is fixedly connected to one side of the inner wall of the sealing sleeve 2071. The sliding rod 2075 is located inside the through hole 2072, and the sealing block 2076 passes through the through hole 2072 and abuts against the inner wall of the sealing sleeve 2071. The sealing sleeve 2071 is fixedly connected inside the isolation cylinder 208. The other end of the fan 103 is connected to the isolation cylinder 208 through a conduit 104. The sealing sleeve 2071 is communicated with the sealing cylinder 2074. By extracting the air inside the isolation cylinder 208 and the treatment barrel 101 through the fan 103, the outer layer of the external device is in a vacuum state, reducing the transmission of the noise of the broken sand and gravel inside the device to the outside; When the fan 103 is turned off, the second spring 2077 drives the sliding rod 2075 and the sealing block 2076 to reset, thereby sealing the through hole 2072, thus avoiding the possibility of sand and gravel entering the sealing sleeve 2071 and the fan 103.

[0027] Working principle: This embodiment provides a sand removal treatment device for sand mold casting after molding. When in use, the raw material enters its interior along the housing mechanism 1. The motor 109 and the fan 103 are started. The processing mechanism 2 is driven by the motor 109 to initially crush the large and loose sand and gravel, causing it to fall. Subsequently, the processing mechanism 2 will perform secondary and tertiary processing on the sand and gravel. After the processing is completed, it will be discharged along the lower part of the housing mechanism 1; After the raw materials enter the processing barrel 101 along the feeding port 102, they will directly enter the isolation cylinder 208, and the feeding port 102 is sealed. At this time, the motor 109 drives the drive shaft 201 to operate, so that the drive shaft 201 conveys the sand and gravel downward through the primary crushing blades 202. During this process, the sand and gravel will move along with the rotation of the primary crushing blades 202 and impact the baffle 203 by the potential energy of its movement, so as to conduct primary crushing on the large sand and gravel and make it fall. After falling to the secondary crushing assembly 206, the medium-sized sand and gravel will fall after being ground by the secondary crushing assembly 206, the small sand and gravel will fall directly, and the large sand and gravel will be located inside the secondary crushing assembly 206. At this time, the pressing assembly 205 contacts the guiding baffle 203 and moves downward, so as to impact the large sand and gravel to increase the friction effect between the large sand and gravel and the secondary crushing assembly 206 and accelerate the crushing. The fan 103 will extract the air between the processing barrel 101 and the isolation cylinder 208 and discharge the air into the pressure assembly 205, so that the pressure assembly 205 discharges air into the isolation cylinder 208 to accelerate the discharge of the sand and gravel below; When the drive shaft 201 operates, the medium-sized sand and gravel and the large sand and gravel will be inside the crushing shell 2061. At this time, the crushing blocks 2062 continuously rub the medium-sized sand and gravel and the large sand and gravel along with the operation of the drive shaft 201. However, it is difficult for the large sand and gravel to enter between the crushing blocks 2062 and the crushing shell 2061, resulting in a low crushing efficiency. Along with the operation of the drive shaft 201, the pressing block 2054 will contact the guiding baffle 204 and be pressed to move downward, so that the pressing block 2054 squeezes the large sand and gravel to move downward to increase the friction force with the crushing shell 2061 and the crushing blocks 2062, completing the crushing of the large sand and gravel. And when the pressing block 2054 breaks away from the guiding baffle 204, it will quickly reset under the action of the elastic force of the first spring 2056, and so on; When the fan 103 operates, on the one hand, it will extract the air inside the isolation cylinder 208 and the processing barrel 101, so that the space between the isolation cylinder 208 and the processing barrel 101 is in a vacuum state, and the extracted gas is continuously injected into the sealing sleeve 2071, so that while the pressure in the sealing sleeve 2071 increases, it pushes the sliding rod 2075 to move outward. At this time, a large amount of gas is discharged and discharged downward along the isolation cylinder 208.

[0028] The embodiments disclosed in the present invention are preferred embodiments, but are not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present invention according to the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present invention, they are within the protection scope of the present invention.

Claims

1. A shakeout treatment device for sand mold casting after molding, comprising a motor, a blower and a pressure valve, characterized in that, It also includes a housing mechanism, including a processing barrel, a feeding port arranged above the processing barrel, a partition plate located below the processing barrel, a motor, a blower, and a pressure valve. Among them, the motor is located below the processing barrel, and the pressure valve is communicated with the processing barrel; and a processing mechanism, including a driving shaft, primary crushing blades arranged outside the driving shaft, a secondary crushing assembly located outside the driving shaft, an isolation cylinder connected to the secondary crushing assembly, baffles located inside the isolation cylinder, a guiding baffle connected to the isolation cylinder, a pressing assembly, and a pressure assembly. Among them, the pressing assembly is located above the secondary crushing assembly, the pressure assembly is connected to the isolation cylinder, the pressure assembly is connected to the blower, the driving shaft is connected to the motor, and the secondary crushing assembly and the primary crushing blades are the crushing treatment structures for collecting and falling sand in casting processing.

2. The shakeout treatment device for sand mold casting after molding according to claim 1, wherein, The upper part of the processing barrel is communicated with the feeding port, the outer wall of the processing barrel is fixedly connected to the blower, the upper and lower parts of the blower are respectively communicated with two conduits, one of the conduits is communicated with the processing barrel, a pressure valve is arranged outside the processing barrel, the outer wall of the processing barrel is fixedly connected to a plurality of support legs, a discharge port is opened below the processing barrel, the lower part of the processing barrel is fixedly connected to two partition plates, and the two partition plates are respectively fixedly connected to the inner diameter and outer diameter of the discharge port, and the upper part of the motor is fixedly connected to the upper part of the processing barrel.

3. The shakeout treatment device for sand mold casting after molding according to claim 2, characterized in that, The outer wall of the driving shaft is fixedly connected to a plurality of primary crushing blades and a secondary crushing assembly respectively, the outer wall of the secondary crushing assembly is fixedly connected to the inner wall of the isolation cylinder, the inner wall of the isolation cylinder is fixedly connected to a plurality of baffles and a plurality of guiding baffles respectively, the pressing assembly is slidably connected outside the driving shaft, and the pressure assembly is fixedly connected to the outer wall of the isolation cylinder.

4. The shakeout device for shakeout treatment after sand mold casting according to claim 3, wherein, The primary crushing blades adopt a spiral design, the guiding baffle adopts an inclined design, the outer wall of the isolation cylinder is fixedly connected to the inner wall of the processing barrel, and the blower is communicated with the space between the isolation cylinder and the processing barrel through one of the conduits.

5. The shakeout device for shakeout treatment after sand mold casting according to claim 4, wherein, The pressure valve is communicated with the space between the isolation cylinder and the processing barrel, the number of baffles is three, and the three baffles are located between two adjacent primary crushing blades.

6. The shakeout device for shakeout treatment after sand mold casting according to claim 5, wherein, The pressing assembly includes a mounting plate, and a plurality of multi-stage telescopic rods are fixedly connected below the mounting plate, and the bottom ends of the plurality of multi-stage telescopic rods are fixedly connected to a mounting groove, and the mounting groove is opened above the pressing block. A sealing ring is sleeved outside the multi-stage telescopic rod, and the sealing ring is fixedly connected above the pressing block. A plurality of pressing blocks are fixedly connected to the same sliding cylinder.

7. The shakeout treatment device for sand mold casting after molding according to claim 6, wherein, A first spring is sleeved outside the multi-stage telescopic rod, and the two ends of the first spring are respectively fixedly connected to the lower part of the inner wall of the mounting groove and the outer wall of the multi-stage telescopic rod. The mounting plate is fixedly connected outside the driving shaft, and the sliding cylinder is sleeved outside the driving shaft.

8. The shakeout treatment device for sand mold casting after molding according to claim 7, characterized in that, The secondary crushing assembly includes a crushing shell, the upper part of the crushing shell is lapped with a plurality of crushing blocks, a plurality of friction strips are fixedly connected to the lower part of the plurality of crushing blocks and the upper part of the crushing shell respectively, a plurality of screening holes are opened below the crushing shell, and a bearing is clamped inside the crushing shell; The crushing shell is sleeved outside the driving shaft through the bearing, the outer wall of the crushing shell is fixedly connected to the inner wall of the isolation cylinder, the shape between the plurality of crushing blocks is adapted to the shape of the pressing block, and the plurality of crushing blocks are all fixedly connected to the driving shaft.

9. The shakeout device for shakeout treatment after sand casting molding according to claim 8, characterized in that, The pressure assembly includes a sealing sleeve. A number of through holes are formed in the inner wall of the sealing sleeve, and the through holes are used for sand removal cleaning in the manufacture of copper castings. A number of brackets are fixedly connected inside the sealing sleeve, and a number of sealing cylinders are fixedly connected inside the brackets. A sliding rod is slidably connected inside the sealing cylinder. One end of the sliding rod is fixedly connected with a sealing block, and the other end of the sliding rod is fixedly connected with a second spring.

10. The shakeout treatment device for sand mold casting after molding according to claim 9, characterized in that, The other end of the second spring is fixedly connected with one side of the inner wall of the sealing sleeve. The sliding rod is located inside the through hole, and the sealing block passes through the through hole and abuts against the inner wall of the sealing sleeve. The sealing sleeve is fixedly connected inside the isolation cylinder, and the other end of the blower is connected to the isolation cylinder through a conduit. The sealing sleeve is communicated with the sealing cylinder.

Images