Air blowing device for axle housing sand core

Abstract

The utility model relates to the technical field of blowing devices, in particular to an axle housing sand core blowing device. The air blowing device mainly solves the problems that when a common axle housing sand core is subjected to air blowing treatment, a layer of cloth needs to be manually laid on a mold base by a worker, meanwhile, an air pipe is held by a hand to conduct air blowing on the cloth, sand core hardening is assisted, and due to the fact that air blowing time is long, the hand of the worker is aching and pain, and hardening operation is affected. According to the technical scheme, the sand core mold comprises a sand core mold base and breathable cloth, a support and a protective cover are arranged at the top of the sand core mold base, a first driving assembly, an N-shaped frame and an air blowing assembly are arranged on the protective cover, the air blowing assembly comprises an air pump, and the air outlet end of the air pump is connected with a bent pipe. According to the automatic cloth covering device, the purpose of automatically and uniformly blowing is achieved while automatic cloth covering is achieved, manual intervention is reduced, and the blowing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a blowing device technical field especially relates to a bridge housing sand core blowing device. BACKGROUND

[0002] The core principle of bridge housing sand core blowing is to use gas as a medium to uniformly and rapidly transfer hardening agent to the inside of the sand core, and to cause a chemical reaction with the resin in the sand core, thereby rapidly hardening the sand core. This process aims to improve the strength and dimensional stability of the sand core, ensuring that the sand core can withstand the impact and pressure of high-temperature metal liquid during subsequent casting, ultimately obtaining high-quality castings. Nowadays, when blowing, a layer of air-permeable cloth is usually placed on the sand core mold base, and a hand-held blowing pipe is used to gradually blow air into the openings on the sand core mold base, completing the blowing process of the bridge housing sand core.

[0003] However, during the blowing process of common bridge housing sand cores, the staff usually needs to manually lay a layer of cloth on the mold base and hold the air pipe to blow air into the cloth to assist in sand core hardening. Due to the long blowing time, the staff's hands become sore, affecting the hardening operation. Therefore, we propose a bridge housing sand core blowing device. SUMMARY

[0004] The utility model aims at the problems in the background art and proposes a bridge housing sand core blowing device.

[0005] The technical scheme of the utility model is a bridge housing sand core blowing device, which comprises a sand core mold base and air-permeable cloth. A support and a protective cover are arranged on the top of the sand core mold base. A first driving assembly, an N-shaped frame, and a blowing assembly are installed on the protective cover. The blowing assembly comprises an air pump. The air outlet end of the air pump is connected with an elbow pipe. The air outlet end of the elbow pipe is connected with a telescopic pipe. An adjusting assembly is installed in the protective cover. The adjusting assembly comprises a stabilizing frame. A second rotating shaft penetrates through the stabilizing frame. A second gear is sleeved on the outer surface wall of the second rotating shaft. A first rotating frame is connected to the bottom end of the second gear. A solid gear is sleeved on the protruding end of the first rotating frame. A second rotating frame is connected to the bottom wall of the solid gear. A toothed ring is connected to part of the legs of the stabilizing frame. A gas cylinder is installed on the top wall of the support.

[0006] Preferably, the front view wall and the back wall of the protective cover are symmetrically provided with exhaust ports. Dust screens are embedded in the exhaust ports. Guide sleeves are symmetrically welded on the outer walls of the protective cover.

[0007] Preferably, magic tape hook faces are arranged on the walls of the protective cover. The nap structure of the air-permeable cloth is bonded with the magic tape hook face structure.

[0008] Preferably, the first driving assembly comprises a motor, the output end of the motor is connected with a first rotating shaft, the outer surface wall of the first rotating shaft is sleeved with a first gear, and the first gear is engaged with a second gear.

[0009] Preferably, the air outlet end of the telescopic pipe is connected with a paint spraying head, and the two side walls of the paint spraying head are symmetrically provided with sliding blocks.

[0010] Preferably, the other part of the supporting leg of the stabilizing frame is connected with the two side inner walls of the protective cover, the middle part of the stabilizing frame is provided with a first rotating hole, and the bottom end of the second rotating shaft penetrates through the first rotating hole.

[0011] Preferably, the top wall of the solid gear is provided with a rotating groove, the first bearing is embedded in the rotating groove, and the protruding end of the first rotating frame is inserted into the rotating groove.

[0012] Compared with the prior art, the bridge shell sand core blowing device has the following beneficial technical effects:

[0013] The opening cover at the top of the sand core mold base is arranged in the protective cover through the protective cover and the air-permeable cloth, so that the air pump, the elbow pipe, the telescopic pipe and the paint spraying head can be started to realize the blowing treatment of the bridge shell sand core, under the driving of the first driving assembly, the paint spraying head can reciprocate under the transmission of the two adjusting assemblies, the first rotating frame and the solid gear are rotated, the uniformity of the blowing operation is improved, the manual intervention is reduced, and the blowing efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of a bridge shell sand core blowing device.

[0015] Figure 2 It is Figure 1 It is a front view cross-sectional structure schematic view.

[0016] Figure 3 It is Figure 2 It is a structure schematic view of the blowing assembly and the first driving assembly.

[0017] Figure 4 It is Figure 3 It is an expanded structure schematic view of the adjusting assembly.

[0018] Reference numerals in the attached drawings: 1. Sand core mold base; 2. Support; 3. Protective cover; 4. Breathable cloth; 5. First drive assembly; 51. Motor; 52. First rotating shaft; 53. First gear; 6. N-type frame; 7. Air blowing assembly; 71. Air pump; 72. Bend; 73. Telescopic tube; 74. Spray nozzle; 75. Slider; 8. Adjustment assembly; 81. Stabilizer; 82. Second rotating shaft; 83. Second gear; 84. First rotating frame; 85. Solid gear; 86. Second rotating frame; 87. Gear ring; 9. Cylinder; 10. Dustproof net; 11. Guide sleeve. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] Example

[0021] like Figures 1 to 4 As shown, the present invention proposes a bridge housing sand core blowing device, including a sand core mold base 1 and a breathable cloth 4. A protective cover 3 is installed over the opening at the top of the sand core mold base 1. The support leg structure of the bracket 2 is fixedly connected to the top wall of the sand core mold base 1. Multiple guide sleeves 11 are symmetrically welded to the outer walls on both sides of the protective cover 3. Each guide sleeve 11 has a sliding hole. The bottom ends of the multiple support legs of the bracket 2 pass through the sliding holes on the multiple guide sleeves 11, which facilitates the guiding function of the protective cover 3 in the lifting state under the cooperation of the support legs of the bracket 2 and the guide sleeves 11. A cylinder 9 is fixedly installed on the top of the bracket 2. On the wall, the support 2 has a first through hole on its top wall, and the N-type frame 6 is installed on the top wall of the protective cover 3. The output end of the cylinder 9 passes through the first through hole on the top wall of the support 2 and is fixedly connected to the top wall of the N-type frame 6, which facilitates the lifting and lowering of the protective cover 3. The breathable cloth 4 is arranged at the bottom opening of the protective cover 3. The textured surface of the breathable cloth 4 is bonded to the Velcro hook surface arranged on the outer wall of the protective cover 3, which helps to position the breathable cloth 4 and makes it easier for the operator to disassemble and clean the breathable cloth 4, reducing the impact of impurities on the surface on the breathability and hindering the subsequent blowing operation.

[0022] Furthermore, the first drive assembly 5 includes a motor 51, a first rotating shaft 52, and a first gear 53. The motor 51 is mounted on the top wall of the protective cover 3. A second through hole is provided on the top wall of the protective cover 3. The output end of the motor 51 is located in the second through hole. The top end of the first rotating shaft 52 is also located in the second through hole and connected to the output end of the motor 51, which is conducive to rotation under the drive of the motor 51. The first gear 53 is located inside the protective cover 3 and is sleeved on the outer surface wall of the first rotating shaft 52, which is conducive to driving the first rotating shaft 52 to rotate under the action of rotation.

[0023] Further, the blowing assembly 7 is installed on the protective cover 3, the blowing assembly 7 comprises a gas pump 71, an elbow pipe 72, an extension pipe 73, a paint spraying head 74 and a sliding block 75, the gas pump 71 is installed on the top wall of the protective cover 3, the gas inlet end of the elbow pipe 72 is connected with the gas outlet end of the gas pump 71, the third through hole is arranged on the side wall of the protective cover 3, the gas outlet end of the elbow pipe 72 penetrates through the third through hole and is arranged in the protective cover 3 and connected with the gas inlet end of the extension pipe 73; the two sliding blocks 75 are symmetrically installed on the two side walls of the paint spraying head 74, the sliding grooves are symmetrically arranged on the two inner walls of the protective cover 3, the two sliding blocks 75 are respectively embedded in the corresponding sliding grooves, which is used for assisting the movement of the paint spraying head 74, and the extension pipe 73 is arranged in a telescopic and deformable manner, which is beneficial to prevent the movement of the paint spraying head 74 from being affected by blowing; the exhaust ports are symmetrically arranged on the front wall and the back wall of the protective cover 3, and the plurality of dustproof nets 10 are respectively embeddedly installed in the corresponding exhaust ports, which is convenient for exhaust, so as to prevent the pressure in the protective cover 3 from being too high during subsequent blowing and affecting the subsequent use.

[0024] Further, the two groups of adjusting assemblies 8 are installed in the protective cover 3, the adjusting assembly 8 comprises a stabilizing frame 81, a second rotating shaft 82, a second gear 83, a first rotating frame 84, a solid gear 85, a second rotating frame 86 and a gear ring 87, the bottom end of the second rotating shaft 82 penetrates through the first rotating hole arranged on the stabilizing frame 81, the outer wall of the second rotating shaft 82 is in a non-connected state with the first rotating hole, the second bearing is sleeved on the outer surface wall of the second rotating shaft 82, the recess is arranged on the top inner wall of the protective cover 3, the second bearing is embedded in the recess and cooperates with the bearing to assist the rotation of the second rotating shaft 82; the first rotating frame 84 is located below the stabilizing frame 81, the top wall of the first rotating frame 84 is connected with the bottom end of the second rotating shaft 82, which is beneficial to rotate under the driving of the second rotating shaft 82; the inner wall of the protective cover 3 is connected with the end of the supporting rod arranged on the front wall and the back wall of the stabilizing frame 81, so that the stabilizing frame 81 is fixedly installed in the protective cover 3;

[0025] The solid gear 85 is arranged in the tooth ring 87, and is engaged with the tooth ring 87, which is beneficial to rotating the solid gear 85 and the second rotating frame 86 fixedly installed at the bottom of the solid gear 85 under the rotation of the first rotating frame 84; the third bearing is sleeved on the bottom protrusion of the second rotating frame 86, and the circular groove is arranged on the top wall of the paint spraying head 74; the bottom protrusion of the second rotating frame 86 is inserted into the circular groove, and the third bearing is arranged in the circular groove to assist the paint spraying head 74 in rotating under the rotation of the second rotating frame 86.

[0026] In the embodiment, the N-shaped frame 6 is driven to lower the protective cover 3 by starting the air cylinder 9, so that the air-permeable cloth 4 covers the opening at the top of the sand core mold base 1, facilitating subsequent air blowing operation; and under the action of the nap structure of the air-permeable cloth 4 and the magic tape hook surface on the outer wall of the protective cover 3, the air-permeable cloth 4 is convenient to disassemble and clean to prevent impurities from adhering to affect subsequent air blowing treatment of the bridge housing sand core in the sand core mold base 1; when the protective cover 3 completes the covering of the opening at the top of the sand core mold base 1, the first rotating shaft 52 is driven to rotate the first gear 53 by starting the motor 51, the second gear 83 included in the two groups of adjusting assemblies 8 is driven to rotate the second rotating shaft 82, so that the second rotating shaft 82 drives the first rotating frame 84 to rotate, and the solid gear 85 rotates along the tooth ring 87 under the rotation of the first rotating frame 84 and drives the second rotating frame 86 installed below the solid gear 85 to rotate, so as to realize the reciprocating movement of the paint spraying head 74 installed on the protruding structure of the second rotating frame 86, achieve uniform air blowing, and the staff does not need to manually operate, improve the air blowing efficiency, and reduce the pulling strength of the staff.

[0027] The above specific embodiments are only several preferred embodiments of the present application, and based on the technical scheme of the present application and the related inspiration of the above embodiments, those skilled in the art can make various alternative improvements and combinations on the above specific embodiments.

Claims

1. A bridge shell sand core blowing device, comprising a sand core mold base (1) and a breathable cloth (4), characterized in that: The top of the sand core mold base (1) is provided with a bracket (2) and a protective cover (3). The protective cover (3) is equipped with a first drive assembly (5), an N-shaped frame (6), and an air blowing assembly (7). The air blowing assembly (7) includes an air pump (71). The air outlet of the air pump (71) is connected to a bend (72). The air outlet of the bend (72) is connected to a telescopic pipe (73). An adjustment assembly (8) is installed inside the protective cover (3). The adjustment assembly (8) includes a stabilizing frame (81). A second rotating shaft (82) passes through the 81), a second gear (83) is fitted on the outer surface wall of the second rotating shaft (82), a first rotating frame (84) is connected to the bottom end of the second gear (83), a solid gear (85) is fitted on the protruding end of the first rotating frame (84), a second rotating frame (86) is connected to the bottom wall of the solid gear (85), a toothed ring (87) is connected to part of the support legs of the stabilizer (81), and a cylinder (9) is installed on the top wall of the bracket (2).

2. The bridge shell sand core blowing device according to claim 1, characterized in that, The protective cover (3) has symmetrically arranged outlets on the front and back walls, and each of the outlets is fitted with a dustproof net (10). Guide sleeves (11) are symmetrically welded on the outer walls of both sides of the protective cover (3).

3. The bridge shell sand core blowing device according to claim 1, characterized in that, The protective cover (3) has hook and loop fasteners on all four sides, and the fabric (4) has a textured surface that is bonded to the hook and loop fasteners.

4. The bridge shell sand core blowing device according to claim 1, characterized in that, The first drive assembly (5) includes a motor (51), the output end of which is connected to a first rotating shaft (52), and a first gear (53) is sleeved on the outer surface wall of the first rotating shaft (52), and the first gear (53) meshes with a second gear (83).

5. The bridge shell sand core blowing device according to claim 1, characterized in that, The air outlet of the telescopic tube (73) is connected to a paint spray head (74), and sliders (75) are symmetrically installed on both sides of the paint spray head (74).

6. The bridge shell sand core blowing device according to claim 1, characterized in that, The other part of the support legs of the stabilizer (81) are connected to the inner walls of both sides of the protective cover (3). A first rotating hole is provided in the middle part of the stabilizer (81), and the bottom end of the second rotating shaft (82) passes through the first rotating hole.

7. The bridge shell sand core blowing device according to claim 1, characterized in that, A rotating groove is provided on the top wall of the solid gear (85), and a first bearing is embedded in the rotating groove. The protruding end of the first rotating frame (84) is inserted into the rotating groove.

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