Automatic sand mold casting device

Abstract

The utility model discloses an automatic sand mold casting device and relates to the technical field of casting processing equipment. The device comprises a base, a mounting frame, a tamping plate and a collecting box, the upper side wall of the base is connected with a fixing frame of the mounting frame, the lower side wall of the mounting frame is connected with the tamping plate through a hydraulic cylinder, the collecting box is installed on the upper side wall of the base, a feeding assembly is installed on the upper side wall of the base, and a push-out assembly is installed on the upper side wall of the base; a connector is installed at the extending end of a hydraulic cylinder of the push-out assembly, a push plate is installed on the upper side wall of the connector, a sand groove box is installed on the outer side wall of the push plate, a supporting block is installed on the inner side wall of the sand groove box, a push plate is installed on the upper side wall of the supporting block, and a plug pin block is installed on the outer side wall of the push plate. Molding sand can be evenly fed into the sand groove box through the feeding assembly so that follow-up tamping can be facilitated, a sand mold grinding tool can be conveniently pushed out through the push-out assembly, material taking is facilitated, manpower is saved, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of casting processing equipment, in particular to an automatic sand casting device. Background Art

[0002] Sand casting refers to a casting method for producing castings in sand molds. Steel, iron and most non-ferrous alloy castings can be obtained by sand casting. Since the molding materials used in sand casting are cheap and easy to obtain, and the casting mold is simple to manufacture, it can adapt to the single-piece production, batch production and mass production of castings. For a long time, it has been a basic process in casting production. The fully automatic molding machine is a casting equipment used to make sand molds. Its main functions are: filling sand, filling loose molding sand into the sand box; compacting molding sand, compacting the loose molding sand in the sand box through different methods such as vibration, compaction, vibration pressure, and shot pressure, so that the sand mold has the necessary strength during transportation and pouring; demolding, using different mechanisms to remove the mold from the compacted sand mold.

[0003] A Chinese invention application with publication number CN115026247A discloses an automatic sand casting device, comprising a sand trough box, a gantry is fixedly connected between the outer walls of both ends of the sand trough box, a hydraulic rod is fixedly connected to the inner wall of the top of the gantry, the output shaft of the hydraulic rod is connected to a connecting column, the bottom of the connecting column is fixedly connected to a tamping plate, a discharge ring is rotatably connected to the connecting column, the tops of multiple connecting rods are fixedly connected to a gear ring, a sleeve plate is fixed on the connecting column, the other side of the sleeve plate is fixedly connected to a mounting block, the front end of the mounting block is fixedly connected to the sleeve rod, the sleeve rod is rotatably connected to the first shaft rod, the top of the first shaft rod is sleeved and fixed with a first bevel gear, the bottom of the first shaft rod is sleeved and fixed with a gear disk, the front end of the second shaft rod is sleeved and fixed with a second bevel gear, the rear end of the second shaft rod is sleeved and fixed with a transmission gear, and the rear end of the sand trough box is fixedly connected to a rack; in the present invention, the molding sand raw material falling on the discharge ring during feeding is spread to all sides, so that the molding sand raw material is evenly spread over the sand trough box.

[0004] However, it still has the following disadvantages in actual use:

[0005] 1. The above-mentioned automatic sand casting device can spread the molding sand raw materials that fall onto the discharge ring during feeding to the surroundings by rotating the connecting rod and the discharge ring as a whole, so that the molding sand raw materials are evenly spread in the sand trough box. However, this device will cause the molding sand raw materials to be spilled out of the sand trough box under the action of centrifugal force during the up and down movement of the discharge ring and when the discharge ring rotates. At the same time, it may cause residues to remain on the surface of the tamping plate and the discharge ring, resulting in a waste of raw materials.

[0006] 2. In the above-mentioned automatic sand casting device, the sand trough box is connected to the entire device, but the sand mold in the sand trough box is inconvenient to remove, thereby reducing the practicality.

[0007] To this end, we provide an automatic sand casting device to solve the above problems. Utility Model Content

[0008] The purpose of the utility model is to provide an automatic sand casting device, which can evenly feed the molding sand into the sand trough box through the feeding component to facilitate subsequent compaction, and can conveniently push out the sand mold through the pushing component, so as to facilitate material removal, save manpower, improve processing efficiency, and solve the problem of inconvenient material removal in the existing automatic sand casting device.

[0009] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0010] The utility model is an automatic sand casting device, comprising a base, a mounting frame, a tamping plate and a collecting box, the upper side wall of the base is connected to the mounting frame fixing frame, the lower side wall of the mounting frame is connected to the tamping plate through a hydraulic cylinder, the upper side wall of the base is provided with a collecting box, the upper side wall of the base is provided with a feeding assembly, and the upper side wall of the base is provided with a pushing assembly; the lower side wall of the sand storage bucket of the feeding assembly is provided with a discharge pipe, the inner wall of the discharge pipe is provided with a threaded feeder, the lower side wall of the sand storage bucket is provided with a supporting column, the lower side wall of the support column is provided with a sliding block, the inner side wall of the sliding block is provided with a threaded rod, the fixed end of the threaded rod is provided with a fixing block, the left side wall of the threaded rod is provided with a coupling, and the coupling is connected to the output end of the servo motor; the protruding end of the hydraulic cylinder of the pushing assembly is provided with a connector, the upper side wall of the connector is provided with a push plate, the outer side wall of the push plate is provided with a sand trough box, the inner wall of the sand trough box is provided with a supporting block, the upper side wall of the support block is provided with a push plate, and the outer side wall of the push plate is provided with a pin block.

[0011] The utility model is further configured such that a sliding groove is provided on the upper side wall of the base, the base is slidably connected to the slider via the sliding groove, and the inner side wall of the slider is threadedly connected to the threaded rod via an internal thread.

[0012] The utility model is further configured such that the fixed end of the threaded rod is connected to the fixed block bearing, the fixed block is detachably fixedly connected to the base, and the left side wall of the threaded rod is detachably fixedly connected to the servo motor through a coupling.

[0013] The utility model is further configured such that a motor frame is installed on the outer side wall of the servo motor, and the servo motor is connected to the base through the motor frame.

[0014] The utility model is further configured such that the upper side wall of the slider is detachably fixedly connected to the support column, the upper side wall of the support column is detachably fixedly connected to the sand storage bucket, and the discharge port of the sand storage bucket is sealedly connected to the discharge pipe.

[0015] The utility model is further configured such that the upper side wall of the base is detachably fixedly connected to the fixed end of the hydraulic cylinder, the extended end of the hydraulic cylinder is detachably fixedly connected to the connector, and the upper side wall of the connector is fit-connected to the push plate.

[0016] The utility model is further configured such that the outer side wall of the push plate is slidably connected to the sand trough box, the four corners of the inner side wall of the sand trough box are detachably fixedly connected to the support block, and the lower side wall of the sand trough box is detachably fixedly connected to the support column.

[0017] The utility model is further configured such that the lower side wall of the push plate is detachably fixedly connected to the latch block, and the push plate is connected to the connector via the latch block.

[0018] The utility model is further configured such that the upper surface of the sand trough box is slidably connected to the trowel plate, the lower side wall of the trowel plate is detachably fixedly connected to the slider, a collecting box is installed on the right side wall of the sand trough box, a discharge pipe is provided above the sand trough box, and a tamping plate is provided directly above the sand trough box.

[0019] The utility model has the following beneficial effects:

[0020] The present invention provides a material feeding device for conveying the molding sand in the sand storage bucket through the discharge pipe to the sand trough box, thereby avoiding the problem of material feeding being blocked. At the same time, the servo motor is started to drive the threaded rod to rotate under the action of the coupling, thereby the slider can be moved in the slide groove of the base, thereby driving the sand storage bucket above to move horizontally above the sand trough box, and the servo motor is controlled to rotate in the forward and reverse directions, wherein the slide groove can limit the movement range of the slider, so that the discharge pipe is always above the sand trough box and moves back and forth, so as to achieve the effect of uniformly discharging the raw materials into the sand trough box. At the same time, during the process of the horizontal back and forth movement of the sand storage bucket, the molding sand inside can be stirred to avoid agglomeration. This solves the problem that the device may cause the molding sand raw material to be spilled out of the sand trough box under the action of centrifugal force during the up and down movement of the discharge ring, and may cause residue on the surface of the tamping plate and the discharge ring, resulting in waste of raw materials.

[0021] 2. The utility model is provided with an ejection assembly. After the sand mold needs to be taken out, the movement of the hydraulic cylinder is controlled. The hydraulic cylinder pushes the upper connector and the push plate to move upward. The push plate slides upward in the sand trough box and enters to push out the sand mold above the push plate. Pulling the push plate can release the connection between the pin block and the connector, and then release the connection between the push plate and the connector, making it easy to take out the push plate and the sand mold as a whole. The operation is simple and convenient, saving manpower, and solving the problem that the sand trough box is connected to the entire device, but the sand mold in the sand trough box is inconvenient to take out, thereby reducing practicality.

[0022] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a structural diagram of an automatic sand casting device;

[0025] Figure 2 for Figure 1 Left view of;

[0026] Figure 3 It is a structural cross-sectional view of an automatic sand casting device;

[0027] Figure 4 This is an exploded view of the feeding assembly;

[0028] Figure 5 Exploded view of the push assembly.

[0029] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0030] 1-base, 2-feeding assembly, 3-ejection assembly, 101-mounting frame, 102-tamping plate, 103-collection box, 104-chute, 105-trowel plate, 201-sand storage bucket, 202-discharge pipe, 203-thread feeder, 204-support column, 205-slider, 206-threaded rod, 207-fixed block, 208-coupling, 209-servo motor, 301-hydraulic cylinder, 302-connector, 303-push plate, 304-sand trough box, 305-support block, 306-latch block, 209a-motor frame. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention. Specific embodiment 1

[0033] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4The utility model is an automatic sand casting device, including a base 1 and the upper side wall of the base 1 is connected to the mounting frame 101 fixing frame, the mounting frame 101 facilitates the installation of the tamping plate 102, and the lower side wall of the mounting frame 101 is connected to the tamping plate 102 through the hydraulic cylinder 301, so that the hydraulic cylinder 301 can drive the tamping plate 102 to move, and the upper side wall of the base 1 is installed with a feeding assembly 2, which can evenly add raw materials into the sand trough box 304, solving the problem that the existing added raw materials may spill.

[0034] Specifically, the lower side wall of the sand storage bucket 201 of the feeding assembly 2 is sealed and connected to the discharge pipe 202. The discharge pipe 202 facilitates the discharge of raw materials. A screw feeder 203 is installed on the inner side wall of the discharge pipe 202. The screw feeder 203 can push the raw materials to avoid blockage. A support column 204 is installed on the lower side wall of the sand storage bucket 201. The support column 204 plays a supporting role. A slider 205 is installed on the lower side wall of the support column 204. The slider 205 facilitates the sand storage bucket 201 to enter. The inner side wall of the slider 205 is threadedly connected to the threaded rod 206, so that the rotation of the threaded rod 206 can move the slider 205. The fixed end of the threaded rod 206 is connected to the bearing of the fixed block 207 to facilitate the rotation of the threaded rod 206. The fixed block 207 is detachably fixed to the base 1 to fix the fixed block 207. The left side wall of the threaded rod 206 is detachably fixed to the servo motor 209 through the coupling 208, and the coupling 208 plays a connecting role.

[0035] Furthermore, a motor frame 209a is installed on the outer side wall of the servo motor 209. The motor frame 209a facilitates the installation of the servo motor 209. The servo motor 209 is connected to the base 1 through the motor frame 209a to fix the servo motor 209. A slide groove 104 is provided on the upper side wall of the base 1. The slide groove 104 can limit the movement trajectory of the slider 205. The base 1 is slidably connected to the slider 205 through the slide groove 104 to facilitate the movement of the slider 205. The upper side wall of the slider 205 is detachably fixedly connected to the support column 204, and the upper side wall of the support column 204 is detachably fixedly connected to the sand storage bucket 201, realizing integration and achieving the effect of synchronous movement.

[0036] The operation process of this embodiment is as follows: the screw feeder 203 is started to facilitate the transportation of the molding sand in the sand storage bucket 201 to the sand trough box 304 through the discharge pipe 202, thereby avoiding the situation of feeding blockage. At the same time, the servo motor 209 is started to drive the threaded rod 206 to rotate under the action of the coupling 208. During the rotation of the threaded rod 206, the slider 205 will move horizontally along the direction of the threaded rod 206, and then the slider 205 can move horizontally in the chute 104 of the base 1, thereby driving the upper sand storage bucket 201 to move, and the discharge pipe 202 can move horizontally above the sand trough box 304. The forward and reverse rotation of the servo motor 209 is controlled, wherein the chute 104 can limit the movement range of the slider 205, so that the discharge pipe 202 is always above the sand trough box 304 and moves back and forth, so that the raw materials can be evenly discharged into the sand trough box 304. At the same time, during the back and forth horizontal movement of the sand storage bucket 201, the molding sand inside can be stirred to avoid caking. Specific embodiment 2

[0038] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 5 On the basis of the specific embodiment 1, a collection box 103 is installed on the upper side wall of the base 1, and the collection box 103 can collect molding sand raw materials from multiple locations, and an ejection component 3 is installed on the upper side wall of the base 1. The ejection component 3 facilitates the ejection of the molding sand mold and the removal of materials, thereby solving the existing problem of inconvenience in removing materials.

[0039] Specifically, the protruding end of the hydraulic cylinder 301 of the ejection component 3 is detachably fixedly connected to the connector 302, and the connector 302 plays a connecting role. The upper side wall of the connector 302 is fitly connected to the push plate 303, and the push plate 303 plays a supporting and installation role. The lower side wall of the push plate 303 is detachably fixedly connected to the latch block 306, and the latch block 306 plays a limiting and connecting role. The push plate 303 is connected to the connector 302 through the latch block 306 to complete the connection between the push plate 303 and the connector 302.

[0040] Furthermore, the outer wall of the push plate 303 is slidably connected to the sand box 304 to facilitate the movement of the push plate 303, and the four corners of the inner wall of the sand box 304 are detachably fixedly connected to the support block 305. The support block 305 plays a supporting effect and supports the push plate 303. The lower side wall of the sand box 304 is detachably fixedly connected to the support column 204, and the support column 204 supports the sand box 304. The upper side wall of the base 1 is detachably fixedly connected to the fixed end of the hydraulic cylinder 301 to fix the hydraulic cylinder 301. The upper surface of the sand box 304 is fixed to the trowel plate 1 05 sliding connection, which is convenient for the movement of the trowel plate 105. At the same time, the trowel plate 105 can have a smoothing effect. The lower side wall of the trowel plate 105 is detachably fixedly connected to the slider 205, which is convenient for the slider 205 to drive the trowel plate 105 to move. A collecting box 103 is installed on the right side wall of the sand trough box 304 to facilitate the collection of excess raw materials in the sand trough box 304, and a discharge pipe 202 is provided above the sand trough box 304 to facilitate the discharge of raw materials into the sand trough box 304, and a tamping plate 102 is provided directly above the sand trough box 304 to facilitate the tamping plate 102 to compact the molding sand.

[0041] The operation process of this embodiment is as follows: after the sand box 304 is filled with molding sand, the servo motor 209 is started to realize the movement of the slider 205 on the sand box 304, thereby driving the trowel plate 105 to move on the surface of the sand box 304 to smooth the molding sand. At the same time, the collection box 103 on the right collects the excess molding sand. After smoothing, the hydraulic cylinder 301 is controlled to move, thereby driving the tamping plate 102 to move downward to complete the tamping and filtering. When the sand mold needs to be taken out, the movement of the hydraulic cylinder 301 is controlled. The hydraulic cylinder 301 pushes the upper connector 302 and the push plate 303 to move upward. The push plate 303 slides upward in the sand box 304 and enters to push out the sand mold above the push plate 303. Pulling the push plate 303 can release the connection between the latch block 306 and the connector 302, thereby releasing the connection between the push plate 303 and the connector 302, making it easy to take out the push plate 303 and the sand mold as a whole. The operation is simple and convenient, saving manpower.

[0042] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0043] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic sand casting device, comprising a base (1), a mounting frame (101), a tamping plate (102) and a collection box (103), wherein the upper side wall of the base (1) is connected to a fixing frame of the mounting frame (101), the lower side wall of the mounting frame (101) is connected to the tamping plate (102) via a hydraulic cylinder (301), and the upper side wall of the base (1) is provided with a collection box (103), characterized in that: A feeding assembly (2) is installed on the upper side wall of the base (1), and an ejection assembly (3) is installed on the upper side wall of the base (1); The lower side wall of the sand storage bucket (201) of the feeding assembly (2) is installed with a discharge pipe (202), the inner side wall of the discharge pipe (202) is installed with a threaded feeder (203), the lower side wall of the sand storage bucket (201) is installed with a support column (204), the lower side wall of the support column (204) is installed with a slider (205), the inner side wall of the slider (205) is installed with a threaded rod (206), the fixed end of the threaded rod (206) is installed with a fixed block (207), the left side wall of the threaded rod (206) is installed with a coupling (208), and the coupling (208) is connected to the output end of the servo motor (209); The protruding end of the hydraulic cylinder (301) of the ejection assembly (3) is installed with a connector (302), the upper side wall of the connector (302) is installed with a push plate (303), the outer side wall of the push plate (303) is installed with a sand box (304), the inner side wall of the sand box (304) is installed with a support block (305), the upper side wall of the support block (305) is installed with a push plate (303), and the outer side wall of the push plate (303) is installed with a latch block (306).

2. The automatic sand casting device according to claim 1, characterized in that: The upper side wall of the base (1) is provided with a sliding groove (104), and the base (1) is slidably connected to the slider (205) via the sliding groove (104), and the inner side wall of the slider (205) is threadedly connected to the threaded rod (206) via an internal thread.

3. The automatic sand casting device according to claim 1, characterized in that: The fixed end of the threaded rod (206) is connected to the bearing of the fixed block (207), the fixed block (207) is detachably fixedly connected to the base (1), and the left side wall of the threaded rod (206) is detachably fixedly connected to the servo motor (209) via a coupling (208).

4. The automatic sand casting device according to claim 1, characterized in that: A motor frame (209a) is installed on the outer side wall of the servo motor (209), and the servo motor (209) is connected to the base (1) via the motor frame (209a).

5. The automatic sand casting device according to claim 1, characterized in that: The upper side wall of the slider (205) is detachably fixedly connected to the support column (204), the upper side wall of the support column (204) is detachably fixedly connected to the sand storage bucket (201), and the discharge port of the sand storage bucket (201) is sealedly connected to the discharge pipe (202).

6. The automatic sand casting device according to claim 1, characterized in that: The upper side wall of the base (1) is detachably fixedly connected to the fixed end of the hydraulic cylinder (301), the extended end of the hydraulic cylinder (301) is detachably fixedly connected to the connector (302), and the upper side wall of the connector (302) is fittedly connected to the push plate (303).

7. The automatic sand casting device according to claim 1, characterized in that: The outer side wall of the push plate (303) is slidably connected to the sand box (304), the four corners of the inner side wall of the sand box (304) are detachably fixedly connected to the support block (305), and the lower side wall of the sand box (304) is detachably fixedly connected to the support column (204).

8. The automatic sand casting device according to claim 1, characterized in that: The lower side wall of the push plate (303) is detachably fixedly connected to the latch block (306), and the push plate (303) is connected to the connector (302) via the latch block (306).

9. The automatic sand casting device according to claim 1, characterized in that: The upper surface of the sand trough box (304) is slidably connected to the trowel plate (105), and the lower side wall of the trowel plate (105) is detachably fixedly connected to the slider (205). A collecting box (103) is installed on the right side wall of the sand trough box (304). A discharge pipe (202) is provided above the sand trough box (304), and a tamping plate (102) is provided directly above the sand trough box (304).

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