Search

CN-121988696-A - Quantitative shakeout device for magnesium alloy sand casting

CN121988696ACN 121988696 ACN121988696 ACN 121988696ACN-121988696-A

Abstract

The application discloses a magnesium alloy sand casting quantitative shakeout device, which comprises a sand box, wherein a partition plate is fixed in the sand box, a sand leakage pipe is communicated with a vertical through opening of the partition plate, a controller is arranged on the sand leakage pipe, the quantitative sand box is fixedly connected to a sand measuring area, the sand measuring box is of an upper opening structure and faces to the sand leakage pipe opening, a bottom plate is adapted to the bottom of the sand measuring box and is vertically and slidably connected with the bottom plate, the bottom plate is of a through opening structure and is communicated with a sand discharge pipe, the sand discharge pipe penetrates through and is slidably connected with the sand box, the sand measuring box is also slidably connected with a sand locking plate, the sand locking plate is used for inserting the sand discharge pipe so as to close or break the sand discharge pipe, a vertical linear driving piece is also fixed in the sand measuring area, and the driving end of the vertical linear driving piece upwards penetrates through the sand measuring box and is connected with the bottom plate. The application can solve the technical problem that the existing quantitative shakeout mode cannot ensure the quantitative precision.

Inventors

  • Ding Jiehang
  • HUANG ZIHONG
  • FAN WENJIE
  • LI QICHANG
  • WANG ZHENG

Assignees

  • 重庆新型储能材料与装备研究院

Dates

Publication Date
20260508
Application Date
20260202

Claims (10)

  1. 1. The utility model provides a magnesium alloy sand casting ration shakeout device, is including sand box (1) that is the upper shed structure, sand box (1) internal fixation has baffle (2), baffle (2) will sand box (1) inner space is cut apart and is formed sand storage area and volume sand district, just baffle (2) vertical through opening and intercommunication have sand leakage pipe (3), sand leakage pipe (3) configuration have controller (31), its characterized in that still includes fixed connection in volume sand box (4) of volume sand district, volume sand box (4) are the upper shed structure, and towards sand leakage pipe (3) opening, the bottom adaptation and the vertical sliding connection of volume sand box (4) have bottom plate (5), bottom plate (5) are link up the open structure and communicate have sand discharge pipe (6), sand discharge pipe (6) pass and sliding connection in sand box (1), volume sand box (4) still sliding connection have lock plate (7), lock plate (7) are used for inserting sand discharge pipe (6) to break off or open, drive end (8) are passed in vertical drive end (8) and are in the vertical drive end (8).
  2. 2. A magnesium alloy sand casting quantitative shakeout device according to claim 1, wherein the sand box (1) is fixedly provided with a transverse linear driving piece (91), the driving end of the transverse linear driving piece (91) is connected with a sand pushing plate (9) capable of horizontally moving, the lower side of the sand pushing plate (9) and the upper side of the sand measuring box (4) are positioned on the same plane, and the size of the sand pushing plate (9) is larger than the size of an upper opening of the sand measuring box (4).
  3. 3. A magnesium alloy sand casting quantitative shakeout device as claimed in claim 2, wherein the side wall of the sand box (1) is provided with a side hole (11) in a penetrating way for passing through the sand pushing plate (9).
  4. 4. A magnesium alloy sand casting quantitative shakeout device according to claim 2, wherein the transverse linear driving member (91) comprises a supporting plate (911) fixedly connected to the outer wall of the sand box (1), a motor (912) installed on the supporting plate (911), a screw (913) with one end in transmission connection with the driving end of the motor (912) and an adapter plate (914) with one end in threaded connection with the screw (913), the adapter plate (914) is slidably connected with a limit rod (915), the limit rod (915) is parallel to the screw (913), and one end of the limit rod is fixedly connected with the sand box (4).
  5. 5. The quantitative shakeout device for magnesium alloy sand casting according to claim 1, wherein a plurality of limit slots (41) are vertically formed in the inner side of the sand measuring box (4), and a plurality of limit blocks (51) which are adapted to be connected with the limit slots (41) in a sliding manner are fixedly connected with the bottom plate (5).
  6. 6. The quantitative shakeout device for magnesium alloy sand casting according to claim 1, wherein the sand discharge pipe (6) comprises an inner pipe (61) and an outer pipe (62), the upper end of the inner pipe (61) is slidably connected with the sand metering box (4) and fixedly connected with the bottom plate (5), the inner pipe (61) is communicated with the opening of the bottom plate (5), the outer pipe (62) is fixedly connected with the sand box (1), the upper end of the outer pipe (62) is sleeved at the lower end of the inner pipe (61), the lower end of the outer pipe (62) extends out of the sand box (1), and a lock hole (611) for the sand locking plate (7) to enter and exit is formed in the side wall of the inner pipe (61).
  7. 7. The quantitative shakeout device for magnesium alloy sand casting according to claim 1, wherein a hanging plate (52) is fixedly connected to the lower side of the bottom plate (5), a linear driver (53) is arranged on the hanging plate (52), the driving end of the linear driver (53) is connected to the sand locking plate (7) to drive the sand locking plate (7) to open the sand discharging pipe (6), the hanging plate (71) is fixedly connected to the sand locking plate (7), and the hanging plate (71) is used for being hung on the hanging plate (52) when the sand locking plate (7) is used for opening the sand discharging pipe (6).
  8. 8. The quantitative shakeout device for magnesium alloy sand casting according to claim 7, wherein an avoidance groove (42) is formed in the side wall of the sand measuring box (4) so as to avoid vertical movement of the sand locking plate (7), a baffle plate (54) is fixedly connected to the upper side of the bottom plate (5), and the baffle plate (54) is sealed in the avoidance groove (42).
  9. 9. The quantitative shakeout device for magnesium alloy sand casting according to claim 8, wherein the groove wall of the avoidance groove (42) is provided with a clamping groove (43), and the end part of the baffle plate (54) is adapted to and clamped in the clamping groove (43).
  10. 10. A magnesium alloy sand casting quantitative shakeout device according to any one of claims 1-9, wherein the bottom of the sand box (1) is communicated with a drain pipe (12).

Description

Quantitative shakeout device for magnesium alloy sand casting Technical Field The application relates to the technical field of magnesium alloy casting, in particular to a quantitative shakeout device for magnesium alloy sand casting. Background In the molding section of sand casting, filling quantitative molding sand into a sand box or a mold is a key step for ensuring molding quality and material utilization rate. The accurate filling quantity of the molding sand has important significance for ensuring uniform compactness of the sand mould, preventing the sand expansion or shrinkage porosity defect of castings and controlling the production cost. At present, a weighing metering feeder is mainly used for automatic quantitative feeding in a modeling working section. The device usually adopts a high-level Chu Sha bin, and controls the valve to open and close so that molding sand falls into a weighing container below, and after reaching the preset weight, the valve is closed, and then the bottom of the container is turned over or opened to finish discharging. The Chinese patent with publication number CN218903517U discloses a quantitative shakeout device for magnesium alloy sand casting, which receives molding sand through a turnover frame and weighs in real time, and after reaching a preset value, a valve is closed and then the device is turned over for unloading. However, the feeding mode based on the dynamic weighing cut-off has an inherent technical contradiction that the feeding precision and the feeding speed are difficult to optimize simultaneously. Opening a valve to increase the feed rate or increasing the shakeout height can cause the sand to impact the load cell at a greater flow rate and momentum. Due to mechanical inertia and sensor response delay, even if the valve is closed at the moment of reaching the target weight, the subsequently impacted molding sand still causes a significant "overshoot" phenomenon, so that the actual feeding amount exceeds the preset value, and the metering accuracy is reduced. Disclosure of Invention The application mainly aims to provide a magnesium alloy sand casting quantitative shakeout device so as to solve the technical problem that the existing quantitative shakeout mode cannot ensure the quantitative accuracy. In order to achieve the purpose, the quantitative shakeout device for magnesium alloy sand casting comprises a sand box with an upper opening structure, wherein a baffle plate is fixed in the sand box, the inner space of the sand box is divided into a sand storage area and a sand measuring area by the baffle plate, the baffle plate vertically penetrates through an opening and is communicated with a sand leakage pipe, the sand leakage pipe is provided with a controller, the quantitative sand box is fixedly connected with the sand measuring area, the sand measuring box is in an upper opening structure and faces the sand leakage pipe opening, the bottom of the sand measuring box is matched with and vertically and slidably connected with a bottom plate, the bottom plate is in a penetrating opening structure and is communicated with a sand discharge pipe, the sand discharge pipe penetrates through and is slidably connected with the sand box, the sand locking plate is also slidably connected with a sand locking plate, the sand locking plate is used for inserting the sand discharge pipe so as to close or break the sand discharge pipe, a vertical linear driving piece is also fixed in the sand measuring area, and the driving end of the vertical linear driving piece upwards penetrates through the sand measuring box and is connected with the bottom plate. Further, the sand box is fixedly provided with a transverse linear driving piece, the driving end of the transverse linear driving piece is connected with a sand pushing plate capable of horizontally moving, the lower side of the sand pushing plate and the upper side of the sand measuring box are located on the same plane, and the size of the sand pushing plate is larger than the size of an upper opening of the sand measuring box. Further, the side wall of the sand box is provided with a side hole in a penetrating mode so that the sand pushing plate can pass through. Further, the horizontal straight line driving piece includes fixed connection in the backup pad of sand box outer wall, install in motor, one end transmission in the screw rod of motor drive end and one end threaded connection in the keysets of screw rod, keysets sliding connection has the gag lever post, the gag lever post is on a parallel with the screw rod, and its one end fixed connection in the volume sand box. Further, a plurality of limiting grooves are vertically formed in the inner side of the sand measuring box, and the bottom plate is fixedly connected with a plurality of limiting blocks which are matched with and connected with the limiting grooves in a sliding mode. Further, the sand discharge pipe comprises an inner pipe and an outer pipe