A sand core blowing device

Abstract

The utility model discloses a sand core blowing device, comprising a bracket, a main air pipe, a diverter, a diverter air pipe and a positioner. A soft rubber air nozzle is sleeved on the top of the diverter air pipe. The positioner positions the soft rubber air nozzle so that the soft rubber air nozzle remains stable during use, thereby avoiding deformation and shaking of the soft rubber air nozzle.

Description

Technical Field

[0001] The utility model relates to the field of engine cylinder manufacturing, in particular to a blowing device for sand cores. Background Art

[0002] In the field of mechanical casting technology, some sand cores are complex in structure and have hollow or semi-enclosed structures inside. At this time, the floating sand on the surface of the sand core and the sand blocks dropped from other places are easy to adhere or accumulate in the hollow and semi-enclosed areas of the sand core and are difficult to remove. At this time, it is necessary to perform fixed-point blowing on some special positions of the sand core. There are generally two ways to blow the sand core at fixed points, manual blowing and automatic blowing. Manual operation has low reliability, so most factories use automatic blowing. Figure 1 As shown, a blowing device that can automatically blow sand cores includes a diverter 2' connected to an air pipe 1'; a stainless steel air pipe 3' extending upward is installed at each outlet of the diverter 2', and a soft rubber air nozzle 4' is sleeved on the top of the stainless steel air pipe 3'. The soft rubber air nozzle 4' is used to prevent the air nozzle from contacting the sand core 5' when blowing air to the sand core 5', so as to protect the sand core 5'.

[0003] use Figure 1 The blowing device is used. When it is necessary to blow the sand core at a specific position, the stainless steel air pipe 3' is arranged at the corresponding position. However, in actual use, it is found that once the ventilation or working area vibrates, the soft rubber air nozzle 4' will be slightly deformed and shaken, affecting the effect of blowing the sand core at the fixed position.

[0004] Therefore, a new technical solution is needed to solve the above problems. Utility Model Content

[0005] In order to solve the problems caused by the prior art, the utility model provides a sand core positioning and blowing device, which can accurately position all soft rubber air nozzles to avoid deformation and shaking of the soft rubber air nozzles during use.

[0006] In order to achieve the above purpose, the sand core blowing device of the utility model can adopt the following technical solutions:

[0007] A sand core positioning and purging device comprises a bracket, a main air pipe, and a diverter connected to the main air pipe, wherein the diverter is laterally supported on the bracket; an upwardly extending diverter air pipe is installed at each outlet of the diverter, a soft rubber air nozzle is covered on the top of the diverter air pipe, and a positioner is also provided, wherein the positioner comprises a plurality of positioning modules and a connecting piece connecting two adjacent positioning modules, wherein each positioning module has a positioning hole passing through the upper and lower parts, and the soft rubber air nozzles pass through the positioning holes from bottom to top in a one-to-one correspondence, and the bracket is provided with an upwardly extending support rod, wherein the support rod is connected to the connecting piece so that the positioner is fixed above the diverter air pipe.

[0008] Furthermore, the diverters have two and are arranged in parallel, and each diverter is provided with several groups of soft rubber air nozzles, wherein a group of soft rubber air nozzles on one diverter is arranged side by side with a group of soft rubber air nozzles on another diverter and cooperates with the same positioning module.

[0009] Furthermore, each positioning module is provided with six positioning holes, three of which are positioned in cooperation with a group of soft rubber air nozzles on one diverter, and the other three are positioned in cooperation with a group of soft rubber air nozzles on another diverter.

[0010] Furthermore, the positioning module is in a pie shape, a concentric hole is provided in the middle of the positioning module, and the six positioning holes are fan-shaped holes and are evenly arranged in a circle around the concentric hole.

[0011] Furthermore, the diversion air pipe is in an inclined and bent shape.

[0012] Beneficial effect: Compared with the prior art, the sand core positioning and blowing device provided by the utility model positions the soft rubber air nozzle by setting a positioner, so that the soft rubber air nozzle remains stable during use, avoiding deformation and shaking of the soft rubber air nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a purge device in the prior art;

[0014] Figure 2 It is a three-dimensional diagram of the sand core blowing device of the utility model;

[0015] Figure 3 It is a three-dimensional diagram of the positioner in the sand core blowing device of the utility model;

[0016] Figure 4 It is a three-dimensional diagram of the cooperation between the positioner and the soft rubber air pipe in the sand core blowing device of the utility model;

[0017] Figure 5 This is a state diagram of the sand core blowing device of the utility model when in use. DETAILED DESCRIPTION

[0018] The present invention is further explained below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the following specific implementation methods are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0019] See also Figures 1 to 4As shown, the utility model discloses a sand core purging device, including a bracket 6, a main air pipe 1, a diverter 2 connected to the main air pipe 1, and a positioner 5. The diverter 2 is horizontally supported on the bracket 6; an upwardly extending diverter air pipe 3 is installed at each outlet of the diverter 2, and a soft rubber air nozzle 4 is sleeved on the top of the diverter air pipe. The positioner includes a plurality of positioning modules 51 and a connecting member 52 connecting two adjacent positioning modules. Each positioning module has a positioning hole 53 that passes through the upper and lower parts. The soft rubber air nozzles 4 pass through the positioning holes 53 from bottom to top in a one-to-one correspondence. The bracket 6 is provided with an upwardly extending support rod 61, and the support rod 61 is connected to the connecting member 52 to fix the positioner 5 above the diverter air pipe 3. The diverter 2 has two and is arranged in parallel. Each diverter 2 is provided with a plurality of groups of soft rubber air nozzles 4, wherein a group of soft rubber air nozzles 4 on one diverter 2 is arranged side by side with a group of soft rubber air nozzles 4 on another diverter 2 and cooperates with the same positioning module 51.

[0020] In this embodiment, each positioning module 51 is designed to have six positioning holes 53. The positioning module 51 is in the shape of a round cake, and a concentric hole 54 is provided in the middle of the positioning module 51. The six positioning holes 53 are fan-shaped holes and are evenly arranged in a circle around the concentric hole 54. Three of the positioning holes are positioned in coordination with a group of soft-glue air nozzles 4 on one diverter 2, and the other three positioning holes are positioned in coordination with a group of soft-glue air nozzles 4 on another diverter 2. In other embodiments, four or eight positioning holes 53 may also be used, and the specific number of positioning holes is consistent with the number of soft-glue air nozzles 4. At the same time, the diverter air pipe 3 is in an inclined and bent shape, so that a plurality of diverter air pipes 3 can be clustered inward at the top.

[0021] like Figure 5 As shown, when the sand core blowing device of the utility model is used, it moves to the bottom of the sand core 7 to be blown, so that the soft rubber air nozzle 4 blows at some special positions of the sand core. Since the positioner 5 is set to position the soft rubber air nozzle 4, the soft rubber air nozzle 4 remains stable during use, avoiding deformation and shaking of the soft rubber air nozzle 4.

Claims

1. A sand core blowing device, comprising a bracket (6), a main air pipe (1), and a diverter (2) connected to the main air pipe (1), wherein the diverter (2) is laterally supported on the bracket (6); an upwardly extending diverter air pipe (3) is installed at each outlet of the diverter (2), and a soft rubber air nozzle (4) is sleeved on the top of the diverter air pipe, characterized in that: A positioner (5) is also provided, the positioner comprising a plurality of positioning modules (51) and a connecting piece (52) connecting two adjacent positioning modules, each positioning module having a positioning hole (53) extending upward and downward, the soft rubber air nozzles (4) correspondingly pass through the positioning holes (53) from bottom to top, and the bracket (6) is provided with a support rod (61) extending upward, the support rod (61) is connected to the connecting piece (52) so that the positioner (5) is fixed above the shunt air pipe (3).

2. The sand core blowing device according to claim 1, characterized in that: The diverters (2) have two and are arranged in parallel, and each diverter (2) is provided with a plurality of groups of soft rubber air nozzles (4), wherein a group of soft rubber air nozzles (4) on one diverter (2) and a group of soft rubber air nozzles (4) on another diverter (2) are arranged side by side and cooperate with the same positioning module (51).

3. The sand core purging device according to claim 2, characterized in that: Each positioning module (51) is provided with six positioning holes (53), three of which are used for positioning in cooperation with a group of soft rubber air nozzles (4) on one diverter (2), and the other three are used for positioning in cooperation with a group of soft rubber air nozzles (4) on another diverter (2).

4. The sand core blowing device according to claim 3, characterized in that: The positioning module (51) is in the shape of a circular cake, a concentric circular hole (54) is provided in the middle of the positioning module (51), and the six positioning holes (53) are fan-shaped holes and are evenly arranged around the concentric circular hole (54).

5. The sand core blowing device according to claim 4, characterized in that: The diverter air pipe (3) is in an inclined bent shape.

Images