A sand box surface molten iron splashing scraping device

Abstract

The application discloses a sand box surface molten iron splashing scraping device, which comprises a sand box conveying line, a sand box is arranged on the top of the sand box conveying line, scraping devices are symmetrically arranged on the two sides of the sand box conveying line, the scraping device comprises a support and scraping mechanisms, funnels and collecting discs arranged on the upper part, the middle part and the lower part of the support, the scraping mechanism comprises a support base fixedly connected with one side of the top of the support, a supporting arm and a scraper connected in sequence are arranged on the other end of the support base away from the support, a blocking column fixedly connected with the support is arranged on one side of the support base, and a blocking block connected with the supporting arm is arranged on one side of the supporting arm. The sand box frame surface and the step surface are automatically scraped by the special splashing scraping device, the device detection mechanism can automatically alarm and remind to stop for manual cleaning for the firmly adhered molten iron splashing, the stop time is reduced, the manufacturing quality of the sand mold and the jointing quality of the upper and lower sand molds are ensured, and the flow line equipment and the device are protected from being damaged.

Description

Technical Field

[0001] This invention relates to the field of molten iron removal technology in sand boxes, specifically to a device for scraping off molten iron splashes from the surface of a sand box. Background Technology

[0002] In existing technologies, the sand box in automated casting lines is not only a fixed device for sand molds but also a mobile carrier. It has functions such as molding, positioning, mold assembly, handling, and demolding in the casting process. Therefore, the smoothness of the sand box's operation and the accuracy of the mold assembly have a great impact on the quality of the castings.

[0003] According to the layout of the automated casting line, the pouring machine is located on one side of the sand box running direction. When molten iron is poured, due to the impact of the drop or the offset of the landing point, some molten iron often splashes onto the sand box frame outside the gate. The frame surface is the positioning reference surface for the mold. If there is an iron block placed there, it may cause the mold to be distorted or the mold to be poorly closed. The sand box step surface is also the contact surface of the rollers when the single box moves. Its surface flatness directly affects the stability of the movement. In addition, the step surface is also the positioning surface for mold removal. Placing an iron block there may also cause obstacles to removal or even damage to the equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a device for scraping off molten iron splashes from the surface of a sand box, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a scraping device for molten iron splashing off a sand box surface, comprising a sand box transport line, a sand box placed on top of the sand box transport line, and scraping devices symmetrically arranged on both sides of the sand box transport line. The scraping device includes a support and scraping mechanisms, funnels, and collecting trays disposed on its upper, middle, and lower parts. The scraping mechanism includes a support fixedly connected to one side of the top of the support, and a support arm and a scraper sequentially connected to the other end of the support away from the support. A stop post fixedly connected to the support is provided on one side of the support, and a stop block connected thereto is provided on one side of the support arm.

[0006] In a further optimization, a pin hole is provided vertically at the root of the support arm, and the support arm and the support are connected by the pin to make the connection stable.

[0007] In a further optimization, a switch arm connected to the bracket is provided on one side of the support, and a proximity switch and a detection block are respectively provided on the other end of the switch arm away from the bracket. When the scraper position shifts, the detection block will also shift to the proximity switch. At this time, the automatic alarm will be activated to remind the operator to clean up the firmly attached objects in time.

[0008] In a further optimization, the contact end between the baffle and the block is provided with a rubber ball head. The baffle ensures that the scraper is perpendicular to the running direction of the sand box, and its rubber ball head can prevent impact during resetting.

[0009] In a further optimized configuration, the detection block is connected to the stop block, and the stop block is perpendicularly connected to the support arm.

[0010] In a further optimization, a spring is provided on one side of the scraper, and a hook is provided between the spring and the scraper. The other end of the spring away from the scraper is connected to the bracket by an adjusting bolt. By adjusting the length of the spring hook, the tension of the spring can be changed within the effective stroke.

[0011] In a further optimized version, the funnel is funnel-shaped and located at the lower end of the scraper, and the collecting plate is movable and placed at the lower end of the funnel outlet. All molten iron splashes fall into the collecting plate through the funnel, and the collecting plate is equipped with rollers for easy cleaning.

[0012] In a further optimized design, the scraper opening is stepped and includes an upper scraper opening and a lower scraper opening. The upper scraper opening corresponds to the upper surface of the sand box, and the lower scraper opening corresponds to the stepped surface of the sand box. The gap between the scraper opening and the sand box is set to 2mm.

[0013] Beneficial effects

[0014] The molten iron splash scraping device provided by this invention automatically removes splashes from the surface of the sand box frame and steps during the operation of the casting line. For firmly attached molten iron splashes, the device's detection mechanism can automatically alarm and remind the machine to stop for manual removal, reducing downtime. The monthly downtime for cleaning is reduced from 8.5 hours to 1.1 hours, ensuring the manufacturing quality of the sand mold and the quality of the mold assembly. At the same time, it also protects the production line equipment and devices from damage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a partial top view of the scraping mechanism of the present invention;

[0017] Figure 3 This is a partial front view schematic diagram of the scraping mechanism of the present invention;

[0018] Figure 4 This is a front view schematic diagram of the overall structure of the present invention. Detailed Implementation

[0019] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings to further illustrate the technical solutions of the present invention. However, the present invention is not limited to these embodiments.

[0020] Example

[0021] like Figure 1-4 As shown, a scraping device for molten iron splashing off the surface of a sand box includes a sand box transport line 1, a sand box 2 placed on top of the sand box transport line 1, and scraping devices symmetrically arranged on both sides of the sand box transport line 1. The scraping device includes a support 3 and scraping mechanisms 4, funnels 5 and collecting trays 6 arranged on its upper, middle and lower parts. The scraping mechanism 4 includes a support 7 fixedly connected to one side of the top of the support 3. The other end of the support 7 away from the support 3 is provided with a support arm 8 and a scraper 9 connected in sequence. A stop post 11 fixedly connected to the support 3 is provided on one side of the support 7, and a stop block 10 connected to the support arm 8 is provided on one side of the support arm 8.

[0022] In this embodiment, the support arm 8 is provided with a pin hole in the vertical direction at the root. The support arm 8 and the support 7 are connected by a pin. The support arm 8 is connected to the support 7 at the root to the bracket 3 to make the connection stable. A switch support arm 15 connected to the bracket 3 is provided on one side of the support 7. A proximity switch 12 and a detection block 13 are respectively provided on the other end of the switch support arm 15 away from the bracket 3. When the scraper 9 is offset, the detection block 13 will also be offset to the proximity switch 12. At this time, the automatic alarm will be activated to remind the operator to clean the firmly attached objects in time.

[0023] The contact end between the stop post 11 and the stop block 10 is provided with a rubber ball head 16. The stop post 11 ensures that the scraper 9 is perpendicular to the running direction of the sand box 2, and its rubber ball head 16 can prevent impact during resetting.

[0024] The detection block 13 is connected to the stop block 10, and the stop block 10 is perpendicularly connected to the support arm 8.

[0025] A spring 14 is provided on one side of the scraper 9. A hook is provided between the spring 14 and the scraper 9. The other end of the spring 14 away from the scraper 9 is connected to the bracket 3 by an adjusting bolt. By adjusting the length of the spring hook, the tension of the spring 14 can be changed within the effective stroke.

[0026] The funnel 5 is funnel-shaped and located at the lower end of the scraper 9. The collecting plate 6 is movable and placed at the lower end of the outlet of the funnel 5. All molten iron splashes fall into the collecting plate through the funnel. The collecting plate is equipped with rollers for easy cleaning.

[0027] The scraper 9 has a stepped scraping opening, including an upper scraping opening and a lower scraping opening. The upper scraping opening corresponds to the upper surface 18 of the sand box, and the lower scraping opening corresponds to the stepped surface 17 of the sand box. The gap between the scraping opening and the sand box is set to 2mm.

[0028] Working principle:

[0029] During the movement of the sand box, the surface deposits are automatically scraped off by the scraper spring force; the baffle ensures that the scraper is perpendicular to the running direction of the sand box, and its rubber ball head prevents impact during reset; when the adhesion force of foreign objects is greater than the spring force, the scraper will deflect with the movement of foreign objects, and the detection block will also deviate from the proximity switch. At this time, the automatic alarm will be activated to remind the operator to clean the firmly attached objects in time; by adjusting the length of the spring hook, the tension of the spring can be changed within the effective stroke; all molten iron splashes fall into the collection tray through the funnel, and the collection tray is equipped with rollers for easy cleaning.

[0030] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for scraping off molten iron splashes from the surface of a sand box, characterized in that: The system includes a sand box transport line (1), on which a sand box (2) is placed. Scraping devices are symmetrically arranged on both sides of the sand box transport line (1). Each scraping device includes a support (3) and scraping mechanisms (4), a funnel (5), and a collection tray (6) located at its upper, middle, and lower parts. The scraping mechanism (4) includes a support (7) fixedly connected to one side of the top of the support (3). At the other end of the support (7) away from the support (3), a connecting arm (8) and a scraper (9) are sequentially provided. A stop post (11) fixedly connected to the support (3) is provided on one side of the support (7), and a stop block (10) connected to the arm (8) is provided on one side of the arm (8). The support (7) is provided with a switch arm (15) connected to the bracket (3) on one side, and the other end of the switch arm (15) away from the bracket (3) is provided with a proximity switch (12) and a detection block (13). The scraper (9) is provided with a spring (14) on one side, and a hook is provided between the spring (14) and the scraper (9). The other end of the spring (14) away from the scraper (9) is connected to the bracket (3) by an adjusting bolt. The scraper (9) has a stepped scraping opening, including an upper scraping opening and a lower scraping opening. The upper scraping opening corresponds to the upper surface (18) of the sand box, and the lower scraping opening corresponds to the stepped surface (17) of the sand box. The gap between the scraping opening and the sand box is set to 2mm.

2. The device for scraping off molten iron splashes from the surface of a sand box according to claim 1, characterized in that: The support arm (8) has a pin hole in the vertical direction at its root, and the support arm (8) is connected to the support (7) by a pin.

3. The device for scraping off molten iron splashes from the surface of a sand box according to claim 1, characterized in that: The contact end between the stop post (11) and the stop block (10) is provided with a rubber ball head (16).

4. The device for scraping off molten iron splashes from the surface of a sand box according to claim 1, characterized in that: The detection block (13) is connected to the stop block (10), and the stop block (10) is vertically connected to the support arm (8).

5. The device for scraping off molten iron splashes from the surface of a sand box according to claim 1, characterized in that: The funnel (5) is funnel-shaped and located at the lower end of the scraper (9). The collecting plate (6) is movable and located at the lower end of the outlet of the funnel (5).

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