Quantitative blanking device for molding sand

Abstract

The utility model relates to the technical field of molding sand blanking, in particular to a molding sand quantitative blanking device which comprises a blanking pipe, a shell is fixedly arranged at the bottom end of the blanking pipe, and a feeding port and a discharging port are formed in the top and the bottom of the shell respectively. The feeding hole is communicated with the blanking pipe; a charging tray is rotationally connected to the interior of the shell, a plurality of material grooves are formed in the charging tray and are arranged at equal intervals in the circumferential direction, the top and the bottom of the charging tray abut against the inner wall of the shell, and the material grooves are matched with the feeding port and the discharging port correspondingly; and a driving source used for driving the charging tray to rotate is fixedly arranged on the shell. According to the molding sand feeding device, the molding sand in the discharging pipe enters the charging tray feeding groove through the feeding port of the shell, the charging of the quantitative molding sand is completed when the charging tray is full, the driving source drives the charging tray to rotate, and when the charging tray rotates to the discharging port, the molding sand in the charging tray falls under the action of gravity, so that the accurate quantitative discharging of the molding sand can be completed.

Description

Technical Field

[0001] This utility model relates to the field of molding sand feeding technology, specifically to a molding sand quantitative feeding device. Background Technology

[0002] Molding sand is mainly composed of raw casting sand (such as quartz sand), binders (such as clay and resin), and additives (such as coal powder and water glass) mixed in proportion. It is a common material used for casting molds.

[0003] Currently, the quantitative feeding of molding sand is often achieved through a weighing metering pan. Specifically, molding sand is transported by equipment such as an auger and falls onto the weighing pan by gravity. When the weight on the weighing pan reaches a specified value, the feeding of molding sand is stopped.

[0004] However, this method can lead to excessive molding sand. After the specified weight of molding sand is obtained from the weighing pan, the auger stops conveying the molding sand, but there is still molding sand in the air. When this part of the molding sand falls onto the weighing pan, the actual weight of the molding sand has exceeded the predetermined value, resulting in poor accuracy of quantitative feeding. Utility Model Content

[0005] The purpose of this invention is to provide a quantitative feeding device for molding sand to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A molding sand metering device includes a feeding pipe, a housing fixedly mounted at the bottom end of the feeding pipe, an inlet and an outlet respectively opened at the top and bottom of the housing; the inlet is connected to the feeding pipe; a material tray is rotatably connected inside the housing, the material tray has multiple material grooves opened on the material tray, the multiple material grooves are arranged circumferentially at equal intervals, the top and bottom of the material tray abut against the inner wall of the housing, and the material grooves are respectively adapted to the inlet and outlet; a drive source for driving the material tray to rotate is fixedly mounted on the housing.

[0008] Furthermore, it also includes an adjustment component for adjusting the capacity of the feed trough.

[0009] Furthermore, the adjustment assembly includes adjustment blocks that are slidably connected to each material trough, a rotating shaft is rotatably provided in the middle of the material tube, the rotating shaft drives each adjustment block to move through a transmission component, and a limiter for fixing the rotating shaft is also provided at the top of the material tray.

[0010] Furthermore, the transmission component includes a transmission disc fixedly mounted on a rotating shaft, a first connecting rod fixedly mounted on the side of the adjusting block facing the transmission disc, a second connecting rod fixedly mounted at the end of the first connecting rod, and the second connecting rod extending into and slidably connected to a transmission groove on the transmission disc.

[0011] Furthermore, the direction in which the transmission groove is positioned is inclined to the radial direction of the transmission disc.

[0012] Furthermore, the limiter includes a limit rod threaded to the top of the tray. One end of the limit rod passes through an opening on the housing and is fixedly connected to a cap. The other end is inserted into a rotating shaft. A protrusion is fixedly provided in the axial direction of the rotating shaft. A slot is provided on the limit rod to match the protrusion. The protrusion is slidably connected in the slot.

[0013] Furthermore, an indicator is fixedly provided on the twist cap, and an indicator line is provided in the circumferential direction of the opening.

[0014] Furthermore, a baffle is fixedly provided on the top of the adjusting block, and the baffle is slidably connected to the groove on the top of the material tray.

[0015] Furthermore, the driving source is a motor, and the output end of the motor passes through the housing and is fixedly connected to the material tray.

[0016] The beneficial effects of the molding sand quantitative feeding device provided by this utility model in the above technical solution are as follows:

[0017] Through the set material tray, the molding sand in the feeding pipe enters the material tray loading trough through the feeding port of the shell. When the trough is full, the quantitative filling of molding sand is completed. The drive source drives the material tray to rotate. When the trough rotates to the discharge port, the molding sand in the trough falls under the action of gravity, thus completing the quantitative feeding of molding sand. This device has accurate quantitative feeding, and the setting of multiple material troughs can also speed up the quantitative feeding efficiency.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0019] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0022] Figure 2This is a schematic diagram of the exploded structure provided for an embodiment of the present utility model;

[0023] Figure 3 A schematic diagram of the material tray structure provided for an embodiment of this utility model;

[0024] Figure 4 This is a partial structural diagram of the adjustment component provided in an embodiment of the present utility model;

[0025] Figure 5 This is a schematic diagram of the exploded structure of the limiter provided in an embodiment of the present utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Housing; 11. Inlet; 12. Outlet; 2. Material tray; 21. Material trough; 3. Drive source; 4. Adjustment component; 41. Adjustment block; 42. Rotating shaft; 43. Transmission component; 431. Transmission disc; 432. Transmission groove; 433. First connecting rod; 434. Second connecting rod; 44. Limiter; 441. Limiting rod; 442. Twist cover; 443. Protrusion; 444. Slot; 51. Indicator; 6. Baffle. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0029] Please see Figure 1-5 A molding sand quantitative feeding device includes a feeding pipe, a housing 1 fixedly installed at the bottom end of the feeding pipe, and a feeding port 11 and a discharging port 12 respectively opened at the top and bottom of the housing 1; the feeding port 11 is connected to the feeding pipe; a material tray 2 is rotatably connected inside the housing 1, and a plurality of material grooves 21 are opened on the material tray 2. The plurality of material grooves 21 are arranged circumferentially at equal intervals. The top and bottom of the material tray 2 abut against the inner wall of the housing 1, and the material grooves 21 are respectively adapted to the feeding port 11 and the discharging port 12; a drive source 3 for driving the material tray 2 to rotate is fixedly installed on the housing 1.

[0030] The top and bottom of the material tray 2 are both in contact with the inner wall of the housing 1, which can prevent the molding sand in the material trough 21 from being overfilled and the material from leaking during rotation.

[0031] Furthermore, it also includes an adjustment component 4, which is used to adjust the capacity of the material trough 21. During the production process, different molds require different amounts of molding sand, and the adjustment component 4 adjusts the amount of molding sand by adjusting the capacity of the material trough 21.

[0032] Furthermore, the adjustment assembly 4 includes adjustment blocks 41 that are slidably connected to each material trough 21, a rotating shaft 42 is rotatably provided in the middle of the material tube, and the rotating shaft drives each adjustment block 41 to move through the transmission component 43. A limiter 44 for fixing is also provided at the top of the material tray 2.

[0033] Furthermore, the transmission component 43 includes a transmission disk 431 fixedly mounted on the rotating shaft 42, a first connecting rod 433 fixedly mounted on the side of the adjusting block 41 facing the transmission disk 431, a second connecting rod 434 fixedly mounted at the end of the first connecting rod 433, and the second connecting rod 434 extending into and slidably connected to the transmission groove 432 on the transmission disk 431.

[0034] The rotating shaft 42 drives the transmission disc 431 to rotate together. The transmission disc 431 drives the transmission groove 432 to rotate. The rotation of the transmission groove 432 drives the second connecting rod 434 to slide within the transmission groove 432. Since the adjusting block 41 is slidably limited by the material groove 21, the second connecting rod 434 drives the adjusting block 41 to slide within the material groove 21 through the first connecting rod 433, thereby changing the size of the material groove 21.

[0035] Furthermore, the transmission groove 432 is inclined to the radial direction of the transmission disk 431. This arrangement causes the second slide bar to move toward or away from the rotating shaft 42 when the transmission groove 432 rotates (the adjusting block 41 is slidably limited).

[0036] Furthermore, the limiter 44 includes a limit rod 441 threadedly connected to the top of the tray 2. One end of the limit rod 441 passes through an opening on the housing 1 and is fixedly connected to a twist cap 442. The other end is inserted into a rotating shaft 42. A protrusion 443 is fixedly provided in the axial direction of the rotating shaft 42. A slot 444 adapted to the protrusion 443 is provided on the limit rod 441. The protrusion 443 is slidably connected in the slot 444.

[0037] Rotating the cap 442 causes the limiting rod 441 to rotate. The rotation of the limiting rod 441 moves it closer to or further away from the rotating shaft 42, and at the same time causes the slot 444 to rotate. The rotation of the slot 444 drives the rotating shaft 42 to rotate through the protrusion 443, thereby realizing the rotation and fixation of the rotating shaft 42.

[0038] Furthermore, an indicator 51 is fixedly provided on the twist cap 442, and an indicator line is provided in the circumferential direction of the opening. The indicator line is used to indicate the capacity of the corresponding material trough 21. Through the cooperation of the indicator 51 and the indicator line, it is convenient for the staff to adjust the capacity of the material trough 21 in a precise manner.

[0039] Furthermore, a baffle 6 is fixedly installed on the top of the adjusting block, and the baffle 6 is slidably connected to the groove on the top of the material tray 2. During the movement of the adjusting block 41, there may be a situation where the material trough 21 is divided into two troughs (the adjusting block 41 is located in the middle of the material trough 21), which may cause molding sand to enter both troughs at the same time, resulting in an excessive amount of molding sand. By setting the baffle 6, the molding sand can only enter one material trough 21 at a time when the adjusting block 41 is moving, thus ensuring the accuracy of molding sand feeding.

[0040] Furthermore, the driving source 3 is a motor, and the output end of the motor passes through the housing 1 and is fixedly connected to the material tray 2.

[0041] Working principle: The molding sand in the feeding pipe enters the feeding trough 21 of the material tray 2 through the feeding port 11 of the shell 1. The driving source 3 drives the material tray 2 to rotate. When the material tray 21 rotates to the discharge port 12, the molding sand in the material tray 21 falls down under the action of gravity, thus completing the quantitative feeding of molding sand.

[0042] When it is necessary to adjust the amount of molding sand fed, rotating the twist cover 442 drives the limit rod 441 to rotate. The rotation of the limit rod 441 drives the slot 444 to rotate as well. The rotation of the slot 444 drives the rotating shaft 42 to rotate through the protrusion 443. The rotating shaft 42 drives the transmission disc 431 to rotate together. The transmission disc 431 drives the transmission groove 432 to rotate. The rotation of the transmission groove 432 drives the second connecting rod 434 to slide within the transmission groove 432. Since the adjusting block 41 is slidably limited by the material trough 21, the second connecting rod 434 drives the adjusting block 41 to slide within the material trough 21 through the first connecting rod 433, thereby changing the size of the material trough 21.

[0043] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A molding sand quantitative feeding device, comprising a feeding pipe, characterized in that: The bottom end of the feeding pipe is fixedly provided with a housing (1), and the top and bottom of the housing (1) are respectively provided with a feeding port (11) and a discharging port (12); the feeding port (11) is connected to the feeding pipe; The housing (1) is rotatably connected to a material tray (2), and the material tray (2) is provided with multiple material grooves (21). The multiple material grooves (21) are arranged in a circumferential and equidistant manner. The top and bottom of the material tray (2) are both in contact with the inner wall of the housing (1). The material grooves (21) are respectively adapted to the inlet (11) and the outlet (12). A drive source (3) for driving the material tray (2) to rotate is fixedly installed on the housing (1).

2. The molding sand quantitative feeding device according to claim 1, characterized in that, It also includes an adjustment component (4) for adjusting the capacity of the feed trough (21).

3. The molding sand quantitative feeding device according to claim 2, characterized in that, The adjustment assembly (4) includes adjustment blocks (41) that are slidably connected in each material trough (21). A rotating shaft (42) is rotatably provided in the middle of the material tube. The rotating shaft (42) drives each adjustment block (41) to move through a transmission component (43). A limiter (44) for fixing the rotating shaft (42) is also provided at the top of the material tray (2).

4. The molding sand quantitative feeding device according to claim 3, characterized in that, The transmission component (43) includes a transmission disc (431) fixedly mounted on a rotating shaft (42). A first connecting rod (433) is fixedly mounted on the side of the adjusting block (41) facing the transmission disc (431). A second connecting rod (434) is fixedly mounted at the end of the first connecting rod (433). The second connecting rod (434) extends into and slides into the transmission groove (432) on the transmission disc (431).

5. The molding sand quantitative feeding device according to claim 4, characterized in that, The direction in which the transmission groove (432) is set is inclined to the radial direction of the transmission disc (431).

6. The molding sand quantitative feeding device according to claim 3, characterized in that, The limiter (44) includes a limit rod (441) threaded to the top of the tray (2). One end of the limit rod (441) passes through an opening on the housing (1) and is fixedly connected to a twist cap (442). The other end is inserted into a rotating shaft (42). A protrusion (443) is fixedly provided in the axial direction of the rotating shaft (42). A slot (444) adapted to the protrusion (443) is provided on the limit rod (441). The protrusion (443) is slidably connected in the slot (444).

7. The molding sand quantitative feeding device according to claim 6, characterized in that, An indicator (51) is fixedly provided on the twist cap (442), and an indicator line is provided in the circumferential direction of the opening.

8. A molding sand quantitative feeding device according to claim 3, characterized in that, A baffle (6) is fixedly installed on the top of the adjusting block (41), and the baffle (6) is slidably connected to the groove on the top of the tray (2).

9. A molding sand quantitative feeding device according to claim 1, characterized in that, The driving source (3) is a motor, and the output end of the motor passes through the housing (1) and is fixedly connected to the material tray (2).

Images