Sand supply mechanism of molding machine

Abstract

The utility model belongs to the technical field of sand supply of molding machines, and particularly relates to a sand supply mechanism of a molding machine, which comprises a base, a sand storage box is arranged above the base, supporting legs are fixed at four corners of the sand storage box, the four supporting legs are connected onto the base in a sliding manner, an auger is arranged in the sand storage box, and the auger is connected with the sand storage box. One end of the packing auger is rotationally connected with one side wall of the sand storage box through a bearing, a servo motor is fixed to one side wall of the sand storage box, an output shaft of the servo motor is fixedly connected with one end of the packing auger, and a through opening is formed in the side wall, away from the servo motor, of the sand storage box; a sand discharging pipeline is fixed to the side wall of the sand storage box and located at the through opening. Through the arrangement of the base, the sand storage box, the supporting legs, the packing auger, the servo motor, the through opening, the sand discharging pipeline and the driving assembly, casting sand can be conveyed into the sand box of the molding machine conveniently and rapidly, workers do not need to fill the sand in a manual mode, labor is saved, and the using effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of sand supply for a molding machine, in particular to a sand supply mechanism for a molding machine. Background Art

[0002] Sand casting is a process for producing castings using clay-bonded sand as molding materials. Some molding machines for making sand molds generally include the following steps when producing castings: filling sand, filling loose molding sand into the sand box; compacting the molding sand, compacting the loose molding sand in the sand box through different methods such as vibration, compaction, vibration pressure, and injection 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. In this series of processes, the sand filling process is generally operated by staff in a manual manner, so it is more laborious. Therefore, we propose a sand supply mechanism for a molding machine to solve the above problems. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a sand supply mechanism for a molding machine, which solves the problems raised in the above-mentioned background technology.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] A sand supply mechanism of a molding machine comprises a base, a sand storage box is arranged above the base, support legs are fixed at four corners of the sand storage box, and the four support legs are slidably connected to the base, an auger is arranged inside the sand storage box, one end of the auger is rotatably connected to a side wall of the sand storage box through a bearing, a servo motor is fixed to one side wall of the sand storage box, the output shaft of the servo motor is fixedly connected to one end of the auger, a through opening is opened on a side wall of the sand storage box away from the servo motor, a sand discharge pipe is fixed on the side wall of the sand storage box and located at the through opening, one end of the auger away from the servo motor extends into the sand discharge pipe, and a driving component for driving the sand storage box to move in a horizontal direction is arranged on the base.

[0008] Furthermore, the driving assembly includes two bracket blocks symmetrically fixed on the top of the base, a screw rod is rotatably connected between the two bracket blocks through a bearing, a guide rod is fixed between the two bracket blocks, a stepper motor is fixed on the top of the base, the output shaft of the stepper motor is fixedly connected to one end of the screw rod, a connecting plate is threadedly connected to the surface of the screw rod, the connecting plate is slidably connected to the surface of the guide rod, and the top end of the connecting plate is fixedly connected to the bottom of the sand storage box.

[0009] Furthermore, a threaded hole adapted to the screw rod is formed on the side wall of the connecting plate, and a guide hole adapted to the guide rod is formed on the side wall of the connecting plate.

[0010] Furthermore, a slider is fixed to the bottom of each of the supporting legs, and four slide grooves adapted for the slider are symmetrically provided on the top of the base.

[0011] Furthermore, universal self-locking wheels are installed at the four corners of the bottom of the base.

[0012] Furthermore, the longitudinal cross-section of the sand storage box is in the shape of an inverted trapezoid.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a sand supply mechanism for a molding machine, which has the following beneficial effects:

[0015] The utility model can conveniently and quickly transport the casting sand to the sand box of the molding machine by arranging a base, a sand storage box, supporting legs, a auger, a servo motor, a through port, a sand discharge pipe and a driving component, and does not need workers to fill the sand box in a manual manner, so it is more labor-saving and has a better use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall side view structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-section structure at the middle edge AA;

[0019] Figure 4 This is a schematic diagram of the structure of the slider of the utility model.

[0020] In the figure: 1. base; 2. sand storage box; 3. support leg; 4. auger; 5. servo motor; 6. through port; 7. sand discharge pipe; 8. drive assembly; 801. bracket block; 802. screw rod; 803. guide rod; 804. stepper motor; 805. connecting plate; 806. threaded hole; 807. guide hole; 9. slider; 10. slide groove; 11. universal self-locking wheel. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example

[0023] like Figure 1 , Figure 2 and Figure 3 As shown, a sand supply mechanism of a molding machine proposed in an embodiment of the utility model comprises a base 1, a sand storage box 2 is arranged above the base 1, four corners of the sand storage box 2 are fixed with supporting legs 3, the four supporting legs 3 are slidably connected to the base 1, an auger 4 is arranged inside the sand storage box 2, one end of the auger 4 is rotatably connected to a side wall of the sand storage box 2 through a bearing, a servo motor 5 is fixed to one side wall of the sand storage box 2, the output shaft of the servo motor 5 is fixedly connected to one end of the auger 4, a through opening 6 is opened on one side wall of the sand storage box 2 away from the servo motor 5, a sand discharge pipe 7 is fixed on the side wall of the sand storage box 2 and located at the through opening 6, and the end of the auger 4 away from the servo motor 5 extends to the discharge Inside the sand pipe 7, a driving assembly 8 for driving the sand storage box 2 to move in the horizontal direction is arranged on the base 1. When in use, the device is arranged next to the molding machine. The sand storage box 2 stores foundry sand. When it is necessary to fill the foundry sand into the sand box of the molding machine, the driving assembly 8 can be used to drive the sand storage box 2 to move to the right, so that the sand discharge pipe 7 can be moved above the sand box of the molding machine, and then the servo motor 5 is started. The servo motor 5 can drive the auger 4 to rotate, and the auger 4 can push the foundry sand in the sand storage box 2 to move outward, so that the foundry sand can be filled into the sand box of the molding machine, and the staff does not need to fill it in a manual manner, so it is more labor-saving.

[0024] like Figure 1 and Figure 3As shown, in some embodiments, the driving assembly 8 includes two bracket blocks 801 symmetrically fixed on the top of the base 1, a screw 802 is rotatably connected between the two bracket blocks 801 through a bearing, a guide rod 803 is fixed between the two bracket blocks 801, a stepper motor 804 is fixed on the top of the base 1, the output shaft of the stepper motor 804 is fixedly connected to one end of the screw 802, a connecting plate 805 is threadedly connected to the surface of the screw 802, and a side wall of the connecting plate 805 is provided with a hole adapted to fit the screw 802. Threaded hole 806, connecting plate 805 is slidably connected to the surface of guide rod 803, and the side wall of connecting plate 805 is provided with a guide hole 807 adapted to guide rod 803, and the top of connecting plate 805 is fixedly connected to the bottom of sand storage box 2. When it is necessary to drive sand storage box 2 to move to the right, stepper motor 804 can be started, stepper motor 804 can drive screw rod 802 to rotate, screw rod 802 can drive connecting plate 805 to move to the right, and connecting plate 805 can drive sand storage box 2 to move to the right.

[0025] like Figure 1 and Figure 4 As shown, in some embodiments, a slider 9 is fixed to the bottom of the supporting leg 3, and four slide grooves 10 adapted to the slider 9 are symmetrically opened on the top of the base 1, so that the supporting leg 3 can move more stably on the base 1, and universal self-locking wheels 11 are installed at the four corners of the bottom of the base 1 to facilitate the short-distance movement of the device. The longitudinal cross-section of the sand storage box 2 is an inverted trapezoidal shape, so that the auger 4 can push the casting sand in the sand storage box 2 into the sand discharge pipe 7.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A sand supply mechanism for a molding machine, comprising a base (1), characterized in that: A sand storage box (2) is arranged above the base (1). Support legs (3) are fixed at four corners of the sand storage box (2). The four support legs (3) are slidably connected to the base (1). An auger (4) is arranged inside the sand storage box (2). One end of the auger (4) is rotatably connected to a side wall of the sand storage box (2) through a bearing. A servo motor (5) is fixed to one side wall of the sand storage box (2). The output shaft of the servo motor (5) is fixedly connected to one end of the auger (4). A through opening (6) is provided on a side wall of the sand storage box (2) away from the servo motor (5). A sand discharge pipe (7) is fixed on the side wall of the sand storage box (2) and located at the through opening (6). One end of the auger (4) away from the servo motor (5) extends into the sand discharge pipe (7). A driving component (8) for driving the sand storage box (2) to move in a horizontal direction is arranged on the base (1).

2. The sand supply mechanism of a molding machine according to claim 1, characterized in that: The driving assembly (8) comprises two bracket blocks (801) symmetrically fixed on the top of the base (1); a screw rod (802) is rotatably connected between the two bracket blocks (801) via a bearing; a guide rod (803) is fixed between the two bracket blocks (801); a stepper motor (804) is fixed on the top of the base (1); an output shaft of the stepper motor (804) is fixedly connected to one end of the screw rod (802); a connecting plate (805) is threadedly connected to the surface of the screw rod (802); the connecting plate (805) is slidably connected to the surface of the guide rod (803); and the top end of the connecting plate (805) is fixedly connected to the bottom of the sand storage box (2).

3. The sand supply mechanism of a molding machine according to claim 2, characterized in that: The side wall of the connecting plate (805) is provided with a threaded hole (806) adapted to the screw rod (802), and the side wall of the connecting plate (805) is provided with a guide hole (807) adapted to the guide rod (803).

4. The sand supply mechanism of a molding machine according to claim 1, characterized in that: The bottom of each of the supporting legs (3) is fixed with a sliding block (9), and the top of the base (1) is symmetrically provided with four sliding grooves (10) adapted to fit the sliding block (9).

5. The sand supply mechanism of a molding machine according to claim 1, characterized in that: Universal self-locking wheels (11) are installed at the four corners of the bottom of the base (1).

6. The sand supply mechanism of a molding machine according to claim 1, characterized in that: The longitudinal cross section of the sand storage box (2) is in the shape of an inverted trapezoid.

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