Quantitative sand adding mechanism of core shooter

Abstract

The utility model provides a quantitative sand adding mechanism of a core shooter, and belongs to the technical field of core shooters. The quantitative sand adding mechanism solves the problem that an existing quantitative sand adding mechanism is low in operation efficiency. The quantitative sand adding mechanism of the core shooter comprises a rack, a sand bin, a sand box and a driving piece installed on the rack, a switch valve capable of communicating or closing a sand outlet of the sand bin and an inlet of the sand box is connected between the sand bin and the sand box, the sand bin is fixedly connected with the sand box, a sliding rod is arranged on the rack, a sliding block is arranged on the side edge of the sand bin and is connected to the sliding rod in a sliding mode, and the driving piece is connected with the sliding rod. The driving piece pushes the bottom of the sand box to move. According to the quantitative sand adding mechanism of the core shooter, the stability of the whole sand bin moving along with the sand box can be improved, and the sand injection efficiency is not affected.

Description

TECHNICAL FIELD

[0001] The utility model belongs to core shooting machine technical field relates to a core shooting machine's ration sand adding mechanism. BACKGROUND

[0002] The core shooting machine is a kind of foundry equipment for manufacturing sand core, fills sand and compacts simultaneously, and immediately solidifies in hot core box, production efficiency is high, sand core quality is good, and it is flexible and portable to operate, suitable for the production needs of various complex molds.

[0003] For example, Chinese patent application

authorized announcement number: CN207606254U

[0004] The above structure is provided with second driving mechanism, and the second driving mechanism only drives the sand box to move, when the sand material in sand bunker needs to be injected into the sand box, and then the sand material in sand box is injected into upper mould and lower mould by sand shooting head, but since only the sand box moves, when the sand material is not injected, the sand bunker is provided with baffle cylinder for driving baffle to move, and the baffle cylinder can open and close the sand outlet at the bottom of sand bunker, but during operation, the sand outlet of sand bunker and the sand inlet of sand box need to be aligned every time when sand material is injected, which leads to the reciprocating movement of sand box multiple times, and the sand outlet of sand bunker needs to be aligned with the sand inlet of sand box multiple times, resulting in the low operation efficiency of sand adding mechanism. UTILITY MODEL CONTENTS

[0005] The utility model aims at the above problems existing in prior art, and provides a ration sand adding mechanism of core shooting machine, and the technical problem to be solved by the utility model is how to solve the low operation efficiency of prior ration sand adding mechanism.

[0006] The utility model can be realized by the following technical schemes.

[0007] A quantitative sand feeding mechanism of a core shooter, comprising a frame, a sand bin, a sand box and a driving member mounted on the frame, characterized in that a switch valve is connected between the sand bin and the sand box and can communicate or close the sand outlet of the sand bin with the inlet of the sand box, the sand bin and the sand box are fixedly connected, a sliding rod is arranged on the frame, a sliding block is arranged on the side of the sand bin and is slidingly connected to the sliding rod, and the driving member pushes the bottom of the sand box to move.

[0008] The sand bin and the sand box are fixedly connected and a switch valve is arranged between the sand bin and the sand box, in production, the switch valve is opened to communicate the sand outlet of the sand bin with the inlet of the sand box, sand in the sand bin flows into the sand box, the driving member is started to drive the sand box and the sand bin to move back and forth together, the sand outlet on the sand box is arranged opposite to the sand inlet of the mold, sand in the sand box is pushed into the mold by the existing sand feeding cylinder to realize sand injection, in a sand injection forming process, the sand box and the sand bin only need to move back and forth together once, and the problem of whether the inlet of the sand box is aligned with the sand bin after moving is not considered, sand injection forming is facilitated, and the sliding rod and the sliding block are arranged, the sand bin as a whole is relatively large, the driving member pushes the bottom of the sand box to move in the moving process, the sliding block and the sliding rod are arranged on the sand bin at the upper portion, the stability of the sand bin as a whole moving with the sand box is improved, and the efficiency of sand injection is not affected.

[0009] The driving member is a driving cylinder or a driving oil cylinder.

[0010] In the quantitative sand feeding mechanism of the core shooter, the sliding block is provided with two sliding blocks arranged on the left and right side walls of the sand bin.

[0011] The number and position of the sliding blocks improve the stability of the sand bin moving back and forth with the sand box.

[0012] In the quantitative sand feeding mechanism of the core shooter, two support plates are arranged on the frame and are arranged along the front and back, the sand box is placed on the support plates, and the driving member is arranged between the two support plates and is fixed on one of the support plates.

[0013] The support plates are arranged on the one hand to provide stable support for the sand box, and on the other hand to arrange the driving member between the two support plates to improve the space utilization, and on the other hand the support plates can also limit the moving stroke to improve the stability of the back and forth movement.

[0014] In the quantitative sand feeding mechanism of the core shooter, a guide rod is arranged between the two support plates, guide blocks are sleeved on the guide rod, and the guide blocks are fixedly connected to the bottom of the sand box.

[0015] The guide rod and the guide block are arranged, and further support is provided for the sand box, so that the sand box can be guided by the guide rod and the guide block during movement and the support effect for the sand box is improved, and the stability of the sand box during movement is improved.

[0016] In the quantitative sand feeding mechanism of the core shooter, the upper end surface of the guide block is flush with the upper end surface of the support plate.

[0017] The sand box is arranged on the guide block and the support plate during movement, and the stability of movement is further improved.

[0018] In the quantitative sand feeding mechanism of the core shooter, the sand box is provided with a guide plate inclined downward towards the outlet, and the sand box is connected with a sand shooting cylinder.

[0019] The sand in the sand box can be quickly shot out of the outlet through cooperation of the guide plate and the sand shooting cylinder, and the sand injection efficiency is improved.

[0020] In the quantitative sand feeding mechanism of the core shooter, the shell of the sand bin extends downward to form a connecting portion connected with the sand box, the on-off valve is a ball valve, and the valve core of the ball valve is arranged in the connecting portion.

[0021] The ball valve does not need to be exposed, and the sand in the ball valve is prevented from spilling out during sand injection, and the working environment of the quantitative sand feeding mechanism is improved.

[0022] Compared with the prior art, the quantitative sand feeding mechanism of the core shooter has the following advantages:

[0023] 1. The slide rod and the slide block are arranged, the sand bin is relatively large as a whole, the driving member pushes the bottom of the sand box to move during movement, the slide block and the slide rod are arranged on the upper sand bin, the stability of the sand bin during movement is improved, and the sand injection efficiency is not affected.

[0024] 2. The support plate is arranged to provide stable support for the sand box, the driving member is arranged between the two support plates to improve space utilization, and the support plate can also limit the movement stroke to improve the stability of forward and backward movement. DETAILED DESCRIPTION

[0025] Figure 1 is a structural schematic view of the utility model.

[0026] Figure 2 is a top view of the utility model.

[0027] Figure 3 is Figure 2 a sectional view of A-A in the figure.

[0028] Figure 4 are partial exploded views of the utility model.

[0029] In the figure, 1, rack; 11, slide bar; 12, support plate; 13, guide rod; 2, sand bin; 21, sand outlet; 22, sliding block; 23, connecting part; 3, sand box; 31, inlet; 32, outlet; 33, guide block; 34, guide plate; 4, driving part; 41, driving block; 5, on-off valve; 6, sand shooting cylinder. DETAILED DESCRIPTION

[0030] The following are specific embodiments of the utility model and further description of the technical scheme of the utility model is made in combination with the drawings, but the utility model is not limited to these embodiments.

[0031] As shown in Figure 1 , the quantitative sand feeding mechanism of the core shooting machine comprises a rack 1, a sand bin 2, a sand box 3 and a driving part 4 installed on the rack 1.

[0032] Specifically, as shown in Figures 1-4 , the sand bin 2 and the sand box 3 are connected with an on-off valve 5 capable of communicating or closing the sand outlet 21 of the sand bin 2 with the inlet 31 of the sand box 3, the sand bin 2 and the sand box 3 are fixedly connected, the rack 1 is provided with a slide bar 11, the side edge of the sand bin 2 is provided with a sliding block 22, the sliding block 22 is slidingly connected to the slide bar 11, the driving part 4 pushes the bottom of the sand box 3 to move, the sand box 3 is provided with a guide plate 34 inclined downward towards the outlet 32, and the sand box 3 is connected with a sand shooting cylinder 6.

[0033] The sand bin 2 and the sand box 3 are fixedly connected, and the on-off valve 5 is arranged between the sand bin 2 and the sand box 3, in production, the on-off valve 5 is opened, so that the sand outlet 21 of the sand bin 2 is communicated with the inlet 31 of the sand box 3, the sand in the sand bin 2 flows into the sand box 3, the driving part 4 is started, the driving part 4 drives the sand box 3 and the sand bin 2 to move back and forth together, moves to the position where the outlet 32 on the sand box 3 is arranged opposite to the sand inlet of the mold, and the sand in the sand box 3 is pushed into the mold by the existing sand shooting cylinder 6 to realize sand injection, in the process of sand injection and molding, the sand box 3 and the sand bin 2 only need to move back and forth together once, and there is no need to consider whether the inlet 31 of the sand box 3 is aligned with the sand bin 2 after moving, which is convenient for sand injection and molding, and the setting of the slide bar 11 and the sliding block 22 can improve the stability of the whole sand bin 2 moving with the sand box 3, and does not affect the efficiency of sand injection.

[0034] The driving part 4 is a driving cylinder or a driving oil cylinder.

[0035] As shown in Figure 1 ,Figure 3 and Figure 4 As shown, there are two sliders 22, which are respectively set on the left and right side walls of the sand bin 2. The frame 1 is provided with two support plates 12 arranged along the front and back. The sand box 3 is placed on the support plate 12. The driving component 4 is set between the two support plates 12 and fixed on one of the support plates 12. The driving component 4 has a driving block 41 connected to the bottom of the sand box 3. A guide rod 13 is provided between the two support plates 12. A guide block 33 is sleeved on the guide rod 13. The guide block 33 is fixed to the bottom of the sand box 3. The upper end face of the guide block 33 is flush with the upper end face of the support plate 12.

[0036] like Figure 1 and Figure 3 As shown, the shell of the sand storage 2 extends downward to form a connection part 23 that connects to the sand box 3. The switch valve 5 is a ball valve, and the valve core of the ball valve is located in the connection part 23.

[0037] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A quantitative sand feeding mechanism for a core shooter, comprising a frame (1), a sand magazine (2), a sand box (3), and a drive component (4) mounted on the frame (1), characterized in that, A switch valve (5) is connected between the sand silo (2) and the sand box (3) to connect or close the sand outlet (21) of the sand silo (2) and the inlet (31) of the sand box (3). The sand silo (2) and the sand box (3) are fixedly connected. A slide rod (11) is provided on the frame (1). A slider (22) is provided on the side of the sand silo (2). The slider (22) is slidably connected to the slide rod (11). The driving component (4) pushes the bottom of the sand box (3) to move.

2. The quantitative sand feeding mechanism of the core shooter according to claim 1, characterized in that, Two sliders (22) are provided, and the two sliders (22) are respectively set on the left and right side walls of the sand storage (2).

3. The quantitative sand feeding mechanism of the core shooter according to claim 1 or 2, characterized in that, The frame (1) is provided with two support plates (12) arranged along the front and back. The sand box (3) is placed on the support plate (12). The drive unit (4) is arranged between the two support plates (12) and fixed on one of the support plates (12).

4. The quantitative sand feeding mechanism of the core shooter according to claim 3, characterized in that, A guide rod (13) is provided between the two support plates (12), and a guide block (33) is sleeved on each of the guide rods (13). The guide block (33) is fixedly connected to the bottom of the sand box (3).

5. The quantitative sand feeding mechanism of the core shooter according to claim 4, characterized in that, The upper surface of the guide block (33) is flush with the upper surface of the support plate (12).

6. The quantitative sand feeding mechanism of the core shooter according to claim 1 or 2, characterized in that, The sand box (3) has a guide plate (34) that is inclined downward toward the outlet (32), and a sand-shooting cylinder (6) is connected to the sand box (3).

7. The quantitative sand feeding mechanism of the core shooter according to claim 1 or 2, characterized in that, The shell of the sand storage (2) extends downward to form a connection part (23) that connects to the sand box (3). The switch valve (5) is a ball valve, and the valve core of the ball valve is located in the connection part (23).

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