Automatic sand feeding device for hot core box

Abstract

The utility model discloses an automatic hot core box sand feeding device which comprises a base, a feeding mechanism and an anti-blocking mechanism, limiting rods are installed at the upper end of the outer wall of the base, the top ends of the limiting rods are connected with a fixing base, a first motor is installed at the top end of the outer wall of the fixing base, and the feeding mechanism is installed at the bottom end of the inner wall of the fixing base. The anti-blocking mechanism is installed at the upper end of the outer wall of the base. According to the sand feeding device, through the arrangement of the feeding mechanism, when the sand feeding device needs to be used, sand can be loaded into a feeding barrel according to the number and the type of the sand needing to be added, then a first motor is started, a screw rod is driven to rotate through the first motor, and therefore a lifting base in threaded connection with the screw rod is controlled to ascend; the lifting base drives the feeding barrel to ascend and move, after the specified height is reached, an electric push rod is started, the feeding barrel is pushed forwards through the electric push rod, then a second motor is started, the feeding barrel is controlled to incline through the second motor, and sand in the feeding barrel is put in immediately.

Description

Technical Field

[0001] The utility model relates to the technical field of core shooting machines, in particular to an automatic sand feeding device for a hot core box. Background Art

[0002] Existing copper alloy, aluminum alloy and other metal parts are generally cast in the form of metal outer mold and sand core phase structure. Sand shooting machine is a casting tool that sintered sand material into a sand core with a specific structure through injection molding. The working principle of sand shooting machine is to inject the core sand mixture into the heated mold core box, and take it out after hardening to a certain thickness, so as to obtain a high-quality sand core with smooth surface and precise size. It is suitable for a variety of sand cores of small and medium-sized workpieces in industries such as valves, faucets, hardware, hydraulics, and pneumatics. It can be applied to furan resin series hot core box sand, urea-formaldehyde resin series hot core box sand, and coated sand. It is particularly suitable for copper casting and aluminum casting industries, and can meet the core making requirements of core shooting process using three-component resin, complex sand core shape and low structural strength. The existing sand-shooting machines generally use sand barrels to hold sand materials, and then feed them according to production needs. In the production process, the operator directly puts the sand materials in the sand barrel in advance, and then the sand materials leak in the sand barrel by their own gravity during the production process. However, due to the limited space of the sand barrel and the narrow outlet of the sand barrel, the sand materials are prone to block the sand barrel outlet during the production process. Especially when the sand materials are wet, it is more likely to cause the sand barrel outlet to be blocked, affecting the normal discharge of the sand barrel. In order to improve the sand feeding effect and efficiency of the device, it is necessary to propose an automatic sand feeding device for a hot core box.

[0003] When the existing sand feeding device is in use, it generally adopts the gravity drop method to feed the material, which is not convenient for controlling the amount of sand material fed according to the processing situation, and is also prone to blockage when feeding wet material, affecting the processing efficiency. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide an automatic sand feeding device for a hot core box to solve the problem that the existing sand feeding device generally adopts the gravity drop method to feed the material when in use, which is not convenient for controlling the amount of sand material fed according to the processing conditions, and is also prone to blockage when feeding wet material, thereby affecting the processing efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic sand feeding device for a hot core box, comprising a base, a feeding mechanism and an anti-blocking mechanism, a limiting rod is installed on the upper end of the outer wall of the base, and the top end of the limiting rod is connected to a fixed seat, a first motor is installed on the top end of the outer wall of the fixed seat, the feeding mechanism is installed at the bottom end of the inner wall of the fixed seat, and the anti-blocking mechanism is installed on the upper end of the outer wall of the base.

[0006] Preferably, the feeding mechanism includes a screw rod, a lifting seat, an electric push rod, a fixed block, a second motor and a feeding bucket. The screw rod is installed at the bottom end of the outer wall of the base, and the top end of the screw rod is connected to the output shaft of the first motor. The outer wall of the screw rod is sleeved with a lifting seat, and both sides of the inner wall of the lifting seat penetrate through the outer wall of the limiting rod. Electric push rods are installed on the front sides of the outer walls of the lifting seat, and the top ends of the outer walls of the electric push rods are connected with a fixed block. A second motor is installed on the outer wall of the fixed block, and the output shaft of the second motor is connected with the feeding bucket inward.

[0007] Preferably, the lifting seat is in threaded connection with the screw rod, and matching threads are provided on the outer wall of the screw rod and the inner wall of the lifting seat.

[0008] Preferably, the feeding bucket forms a telescopic structure with the lifting seat through the electric push rod, and the electric push rods are symmetrically arranged with respect to the central axis of the lifting seat.

[0009] Preferably, the anti-blocking mechanism includes a mounting frame, a limiting block, a limiting spring, a feeding funnel, a dividing net and a vibration motor. The mounting frame is installed on the outer wall of the base, and the top end of the outer wall of the mounting frame is connected with a limiting block. A limiting spring is welded to the upper end of the outer wall of the limiting block, and the top end of the outer wall of the limiting spring is fixed with a feeding funnel. A dividing net is embedded in the inner wall of the feeding funnel. Vibration motors are installed on both sides of the outer wall of the feeding funnel.

[0010] Preferably, the feeding funnel forms a telescopic structure with the mounting frame through the limiting spring, and the limiting springs are symmetrically arranged with respect to the central axis of the feeding funnel.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. By providing the feeding mechanism in the present utility model, sand materials can be loaded into the feeding bucket according to the quantity and type of sand materials required when needed. Then, the first motor is started, and the screw rod is driven to rotate by the first motor, so as to control the lifting seat in threaded connection with the screw rod to rise. The lifting seat drives the feeding bucket to move upward. After reaching the specified height, the electric push rod is started, and the feeding bucket is pushed forward by the electric push rod. Then, the second motor is started, and the feeding bucket is controlled to tilt by the second motor, and immediately the sand materials in the feeding bucket are put in, effectively improving the working efficiency and controllability of the device.

[0013] 2. By providing the anti-blocking mechanism in the present utility model, the sand materials in the feeding bucket can be poured into the feeding funnel under the control of the second motor. At the same time, the vibration motor is started. Under the elastic telescopic structure formed by the cooperation of the feeding funnel, the limiting spring and the mounting frame, a high-frequency vibration effect is formed. Then, in cooperation with the dividing net inside the feeding funnel, the sand materials can be shaken and scattered to fall evenly and enter the bin of the processing equipment for processing, effectively improving the anti-blocking ability and processing effect of the device. Brief Description of the Drawings

[0014] Figure 1 is a schematic three-dimensional structure diagram of the present utility model;

[0015] Figure 2 is a schematic front-plane connection structure diagram of the present utility model;

[0016] Figure 3 is a schematic connection structure diagram of the feeding mechanism of the present utility model;

[0017] Figure 4 is a schematic connection structure diagram of the anti-blocking mechanism of the present utility model.

[0018] In the figure: 1, base; 2, limiting rod; 3, fixed seat; 4, first motor; 5, feeding mechanism; 501, screw rod; 502, lifting seat; 503, electric push rod; 504, fixed block; 505, second motor; 506, feeding bucket; 6, anti-blocking mechanism; 601, mounting frame; 602, limiting block; 603, limiting spring; 604, feeding funnel; 605, distributing net; 606, vibration motor. Detailed Description of the Preferred Embodiment

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as limiting the present utility model.

[0020] Next, the embodiments of the present utility model will be described according to its overall structure.

[0021] Please refer to Figures 1-4, a hot core box automatic sand feeding device, comprising a base 1, a feeding mechanism 5 and a anti-blocking mechanism 6. At the upper end of the outer wall of the base 1, limiting rods 2 are installed, and a fixed seat 3 is connected to the top of the limiting rods 2. At the top of the outer wall of the fixed seat 3, a first motor 4 is installed. The feeding mechanism 5 is installed at the bottom end of the inner wall of the fixed seat 3. The feeding mechanism 5 includes a screw rod 501, a lifting seat 502, an electric push rod 503, a fixed block 504, a second motor 505 and a feeding bucket 506. The screw rod 501 is installed at the bottom end of the outer wall of the base 1, and the top of the screw rod 501 is connected to the output shaft of the first motor 4. A lifting seat 502 is sleeved on the outer wall of the screw rod 501, and both sides of the inner wall of the lifting seat 502 penetrate through the outer wall of the limiting rod 2. Electric push rods 503 are installed on the front sides of the outer walls of the lifting seat 502, and a fixed block 504 is connected to the top of the outer wall of the electric push rod 503. A second motor 505 is installed on the outer wall of the fixed block 504, and the output shaft of the second motor 505 is connected inward to the feeding bucket 506. There is a threaded connection between the lifting seat 502 and the screw rod 501, and matching threads are provided on the outer wall of the screw rod 501 and the inner wall of the lifting seat 502. The feeding bucket 506 and the lifting seat 502 form a telescopic structure through the electric push rod 503, and the electric push rods 503 are symmetrically arranged with the central axis of the lifting seat 502 as the axis. Such a setting can, when needed, load the sand material into the feeding bucket 506 according to the quantity and type of the sand material to be added. Then, start the first motor 4, drive the screw rod 501 to rotate through the first motor 4, so as to control the lifting seat 502 connected to the screw rod 501 in a threaded manner to rise. The lifting seat 502 drives the feeding bucket 506 to move upward. After reaching the specified height, start the electric push rod 503, push the feeding bucket 506 forward through the electric push rod 503, and then start the second motor 505 to control the feeding bucket 506 to tilt, and immediately put the sand material in the feeding bucket 506, effectively improving the working efficiency and controllability of the device.

[0022] Please refer to Figures 1-4, The anti-blocking mechanism 6 is installed at the upper end of the outer wall of the base 1. The anti-blocking mechanism 6 includes a mounting frame 601, a limiting block 602, a limiting spring 603, a feeding funnel 604, a distributing mesh 605 and a vibration motor 606. The mounting frame 601 is installed on the outer wall of the base 1, and a limiting block 602 is connected to the top end of the outer wall of the mounting frame 601. The upper end of the outer wall of the limiting block 602 is welded with a limiting spring 603, and the top end of the outer wall of the limiting spring 603 is fixed with a feeding funnel 604. The distributing mesh 605 is embedded in the inner wall of the feeding funnel 604. Vibration motors 606 are installed on both sides of the outer wall of the feeding funnel 604. The feeding funnel 604 and the mounting frame 601 form a telescopic structure through the limiting spring 603, and the limiting spring 603 is symmetrically arranged with the central axis of the feeding funnel 604 as the axis. Such a setting can pour the sand material in the feeding bucket 506 into the feeding funnel 604 under the control of the second motor 505. At the same time, the vibration motor 606 is started. Under the elastic telescopic structure formed by the cooperation of the feeding funnel 604, the limiting spring 603 and the mounting frame 601, a high-frequency vibration effect is formed. Then, with the cooperation of the distributing mesh 605 inside the feeding funnel 604, the sand material can be shaken and scattered evenly and fall, and enter the bin of the processing equipment for processing, effectively improving the anti-blocking ability and processing effect of the device.

[0023] Working principle: When the device needs to be used for work, first, when it is needed, the sand material can be loaded into the feeding bucket 506 according to the quantity and type of the sand material to be added. Then, the first motor 4 is started, and the screw rod 501 is driven to rotate by the first motor 4, so as to control the lifting seat 502 threadedly connected with the screw rod 501 to rise. The lifting seat 502 drives the feeding bucket 506 to move upward. After reaching the specified height, the electric push rod 503 is started, and the feeding bucket 506 is pushed forward by the electric push rod 503. Then, the second motor 505 is started, and the feeding bucket 506 is controlled to tilt by the second motor 505, and immediately the sand material in the feeding bucket 506 is put in. Secondly, the sand material in the feeding bucket 506 is poured into the feeding funnel 604 under the control of the second motor 505. At the same time, the vibration motor 606 is started. Under the elastic telescopic structure formed by the cooperation of the feeding funnel 604, the limiting spring 603 and the mounting frame 601, a high-frequency vibration effect is formed. Then, with the cooperation of the distributing mesh 605 inside the feeding funnel 604, the sand material can be shaken and scattered evenly and fall, and enter the bin of the processing equipment for processing. Just like this, the instruction manual of the hot box automatic sand feeding device is completed. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0024] The orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only a simplified description for facilitating the description of the present utility model, 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 should not be construed as a limitation on the protected content of the present utility model.

[0025] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. The hot core box automatic sand feeding device, including a base (1), a feeding mechanism (5) and an anti-blocking mechanism (6), is characterized in that: The upper ends of the outer walls of the base (1) are all provided with limit rods (2), and the tops of the limit rods (2) are connected with fixed seats (3). The top of the outer wall of the fixed seat (3) is provided with a first motor (4). The feeding mechanism (5) is installed at the bottom end of the inner wall of the fixed seat (3). The anti-blocking mechanism (6) is installed at the upper end of the outer wall of the base (1).

2. The hot core box automatic sand feeding device according to claim 1, characterized in that: The feeding mechanism (5) includes a screw rod (501), a lifting seat (502), an electric push rod (503), a fixed block (504), a second motor (505) and a feeding bucket (506). The screw rod (501) is installed at the bottom end of the outer wall of the base (1), and the top of the screw rod (501) is connected to the output shaft of the first motor (4). A lifting seat (502) is sleeved on the outer wall of the screw rod (501), and both sides of the inner wall of the lifting seat (502) penetrate through the outer wall of the limit rod (2). Electric push rods (503) are installed on the front sides of the outer walls of the lifting seat (502), and the tops of the outer walls of the electric push rods (503) are connected with fixed blocks (504). A second motor (505) is installed on the outer wall of the fixed block (504), and the output shaft of the second motor (505) is connected inward to the feeding bucket (506).

3. The hot core box automatic sand feeding device according to claim 2, characterized in that: There is a threaded connection between the lifting seat (502) and the screw rod (501), and matching threads are provided on the outer wall of the screw rod (501) and the inner wall of the lifting seat (502).

4. The hot core box automatic sand feeding device according to claim 2, characterized in that: The feeding bucket (506) and the lifting seat (502) form a telescopic structure through the electric push rod (503), and the electric push rods (503) are symmetrically arranged with respect to the central axis of the lifting seat (502).

5. The hot core box automatic sand feeding device according to claim 1, characterized in that: The anti-blocking mechanism (6) includes a mounting frame (601), a limit block (602), a limit spring (603), a feeding funnel (604), a material distribution net (605) and a vibration motor (606). The mounting frame (601) is installed on the outer wall of the base (1), and the top of the outer wall of the mounting frame (601) is connected with a limit block (602). The upper end of the outer wall of the limit block (602) is welded with a limit spring (603), and the top of the outer wall of the limit spring (603) is fixed with a feeding funnel (604). A material distribution net (605) is embedded in the inner wall of the feeding funnel (604). Vibration motors (606) are installed on both sides of the outer wall of the feeding funnel (604).

6. The hot core box automatic sand feeding device according to claim 5, characterized in that: The feeding funnel (604) and the mounting frame (601) form a telescopic structure through the limit spring (603), and the limit springs (603) are symmetrically arranged with respect to the central axis of the feeding funnel (604).

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