Sand cleaning device for metal shell

Abstract

The utility model discloses a sand cleaning device for a metal shell, relates to the technical field of metal processing and cleaning, and solves the technical problems that an existing sand cleaning device for a metal casting can only carry out sand cleaning at a single-side position after fixing the metal casting, the metal casting needs to be fixed for multiple times to be completely cleaned, the operation is tedious, and the time is long. A to-be-cleaned metal shell on the surface of a placing block is clamped through a clamping block capable of sliding front and back and left and right in the sand cleaning box, so that the whole device can clean the surfaces of the metal shells of multiple sizes, and the clamping block can rotate in the sand cleaning box under the action of a clamping column; in the process of cleaning the interior of the sand cleaning box, the metal shell can continuously rotate under the action of the clamping blocks, the position, impacted by airflow, of the surface of the metal shell is changed, and multi-angle sand cleaning of the metal shell is achieved.

Description

Technical Field

[0001] The utility model belongs to the field of metal processing and relates to a metal cleaning technology, in particular to a sand cleaning device for a metal shell. Background Art

[0002] Sand cleaning of metal shells refers to the process of cleaning the residual molding sand on the shell blank during the casting process of the metal shell. Since the metal shell is usually cast using the sand casting method, this method will leave adhered molding sand on the surface of the casting. These sticky sands not only affect the appearance quality of the shell, but may also have an adverse effect on subsequent processing and use. Therefore, after the casting of the metal shell is completed, the sand cleaning process is required to ensure that the surface quality of the shell meets the requirements.

[0003] The reference patent name is: A sandblasting and discarding device for cleaning metal castings (patent announcement number: CN217225109U). The metal casting to be sandblasted is guided into the working range of the sandblasting gun head through a placement plate that can slide up and down, and a clamping plate with variable spacing is set on the surface of the placement plate to fix the position of the metal casting on the clamping plate, ensuring that the metal casting will not move during sand cleaning and ensuring the sand cleaning effect.

[0004] However, when implementing the above technical solution, the following problems exist: the above device can only clean the sand on one side of the casting after fixing the metal casting once, but there are often multiple surfaces or recessed positions on the surface of the metal casting with molding sand. Therefore, cleaning the sand of a single metal casting often requires multiple positioning and sand cleaning operations, which makes the cleaning time of a single metal casting relatively long and requires multiple operations, resulting in cumbersome operations and a relatively long time in the sand cleaning process of the metal casting.

[0005] Therefore, the utility model provides a sand cleaning device for a metal shell. Utility Model Content

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a metal shell sand cleaning device. This metal shell sand cleaning device solves the problem that existing metal casting sand cleaning devices can only clean sand from one side after the metal casting is fixed, and complete cleaning of the metal casting requires multiple fixations, which is cumbersome and time-consuming.

[0007] To achieve the above-mentioned object, according to an embodiment of the first aspect of the present utility model, a sand cleaning device for a metal shell is provided, comprising a sand cleaning box, a placement block being slidably connected to the inside of the sand cleaning box, and a clamping mechanism being provided inside the sand cleaning box, the clamping mechanism comprising:

[0008] Two telescopic blocks, both of which are slidably connected to the inside of the sand cleaning box, and the two telescopic blocks are symmetrically arranged inside the sand cleaning box;

[0009] Two clamping columns, both of which are rotatably connected to the inside of the telescopic block, and two clamping rods are fixedly connected to the side of the clamping column away from the telescopic block. The two clamping rods are located on the same horizontal line and are symmetrically arranged, and the clamping blocks are slidably connected inside the clamping rods.

[0010] Optionally, a guide groove is provided inside the placement block, and the extension lines of the two edge lines on the cross section of the guide groove intersect on the side of the placement block close to the clamping block, and the guide groove partially passes through the side of the placement block away from the clamping block.

[0011] Optionally, a driving column and a transfer gear are rotatably provided inside the sand cleaning box, a transfer rod is fixedly connected to the end of the clamping column away from the clamping block, the transfer rod is slidably connected to the transfer gear, a pulling column is rotatably connected to the end of the clamping column away from the clamping block, and the pulling column is slidably connected to the surface of the driving column.

[0012] Optionally, a pulling belt is fixedly connected between the pulling column and the clamping block, and a spiral groove is provided on the surface of the pulling column, and the spiral groove is adapted to the pulling belt.

[0013] Optionally, a sliding shaft is fixedly connected to the surface of the transfer rod, a sliding groove is provided inside the transfer gear, and the sliding shaft is adapted to the sliding groove.

[0014] Optionally, a movable groove is provided on the surface of the clamping rod, and a movable shaft is fixedly connected to a side of the clamping block close to the clamping rod, and the movable shaft is adapted to the movable groove.

[0015] Compared with the prior art, the beneficial effect of the present invention is that the metal shell to be cleaned on the surface of the placement block is clamped by the clamping block that can slide back and forth and left and right inside the sand cleaning box, so that the overall device can realize the cleaning of metal shell surfaces of multiple sizes, and the clamping block can rotate inside the sand cleaning box under the action of the clamping column. Then, during the cleaning process inside the sand cleaning box, the metal shell can continuously rotate under the action of the clamping block, changing the position of the metal shell surface impacted by the airflow, and realizing sand cleaning of the metal shell at multiple angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural stereogram of the utility model;

[0017] Figure 2 This is a sectional view of the three-dimensional structure of the telescopic block of the present utility model;

[0018] Figure 3 This is a sectional view of the three-dimensional structure of the guide groove of the utility model;

[0019] Figure 4 For the utility model Figure 2A magnified view of the local structure at point A;

[0020] Figure 5 For the utility model Figure 4 A magnified view of the local structure at point B in the middle;

[0021] Figure 6 For the utility model Figure 3 A magnified view of the local structure at point C in the middle.

[0022] In the figure: 1. Sand cleaning box; 2. Block placement;

[0023] 31. Telescopic block; 32. Clamping column; 33. Clamping rod; 34. Clamping block;

[0024] 41. Guide groove;

[0025] 51. Driving column; 52. Transfer gear; 53. Transfer rod; 54. Pulling column; 55. Pulling belt; 56. Spiral groove; 57. Sliding shaft; 58. Sliding groove;

[0026] 61. Moving slot; 62. Moving shaft. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] like Figure 1-6 As shown, a sand cleaning device for a metal shell includes a sand cleaning box 1,

[0029] It should be noted that the sand cleaning box 1 is provided with a sand blasting gun head, an air pipe and an air tank identical to those in the reference patent, which can spray air into the sand cleaning box 1 to achieve sand cleaning;

[0030] The sand cleaning box 1 is internally connected with a placement block 2 in a sliding manner. The sand cleaning box 1 is internally provided with a clamping mechanism, which includes:

[0031] Two telescopic blocks 31, each of which is slidably connected to the inside of the sand cleaning box 1, and the two telescopic blocks 31 are symmetrically arranged inside the sand cleaning box 1;

[0032] It should be noted that an electric telescopic rod is provided between the telescopic block 31 and the sand cleaning box 1. The movement of the telescopic block 31 can change the distance between the end of the telescopic block 31 away from the sand cleaning box 1, and thus the distance between the telescopic block 31 and the metal shell to be cleaned can be adjusted;

[0033] Two clamping columns 32, each of which is rotatably connected to the inside of the telescopic block 31. Two clamping rods 33 are fixedly connected to the side of the clamping column 32 away from the telescopic block 31. The two clamping rods 33 are located on the same horizontal line and are symmetrically arranged. A clamping block 34 is slidably connected to the inside of each clamping rod 33;

[0034] It should be noted that the clamping block 34 that contacts the metal shell to be cleaned is set on a clamping rod 33 that is independent of the telescopic block 31. The range of movement of the clamping rod 33 and the telescopic block 31 can further expand the range of the metal shell to be cleaned that the clamping block 34 can contact, so that the device can be applied to metal shells of multiple sizes. The clamping rod 33 is set on a rotatable clamping column 32, and then after the clamping block 34 clamps the metal shell, it can drive the metal shell to rotate, thereby achieving sand cleaning at multiple angles.

[0035] In actual application, the sand cleaning device for metal shells clamps the metal shell to be cleaned on the surface of the placement block 2 through the clamping block 34 that can slide back and forth and left and right inside the sand cleaning box 1, so that the overall device can clean the surfaces of metal shells of multiple sizes. The clamping block 34 can rotate inside the sand cleaning box 1 under the action of the clamping column 32. Therefore, during the cleaning process inside the sand cleaning box 1, the metal shell can continuously rotate under the action of the clamping block 34, changing the position of the metal shell surface impacted by the airflow, thereby achieving sand cleaning of the metal shell at multiple angles.

[0036] In some specific embodiments, a guide groove 41 is formed inside the placement block 2. The extension lines of the two edge lines on the cross section of the guide groove 41 intersect on the side of the placement block 2 close to the clamping block 34, and the guide groove 41 partially passes through the side of the placement block 2 away from the clamping block 34.

[0037] It should be noted that the guide groove 41 is used to guide the gas after impacting the metal shell to flow to a position away from the metal shell. After being blocked by the metal shell, the gas will disperse into the inside of the sand cleaning box 1. At this time, the inclined guide groove 41 can guide the flow of part of the gas, thereby avoiding the presence of a large amount of gas moving in different directions inside the sand cleaning box 1, causing interference and affecting the effect of the gas impact sand cleaning;

[0038] In some specific embodiments, a driving column 51 and a transfer gear 52 are rotatably provided inside the sand cleaning box 1;

[0039] It should be noted that two driving teeth are fixedly connected to the surface of the driving column 51, and the driving teeth are unevenly fixed on the surface of the driving column 51; the driving teeth are engaged with the transfer gear 52; a motor is fixedly connected to the interior of the sand cleaning box 1, and one end of the motor output shaft is fixedly connected to a coupling (not shown in the figure), and the coupling is fixedly connected to the driving column 51; that is, one rotation of the driving column 51 can drive the transfer gear 52 to rotate a certain angle, and then the clamping column 32 will drive the clamping block 34 to rotate;

[0040] The end of the clamping column 32 away from the clamping block 34 is fixedly connected to a transfer rod 53, and the transfer rod 53 is slidably connected to the transfer gear 52. The end of the clamping column 32 away from the clamping block 34 is rotatably connected to a pulling column 54, and the pulling column 54 is slidably connected to the surface of the driving column 51. A pulling belt 55 is fixedly connected between the pulling column 54 and the clamping block 34.

[0041] In a further embodiment, a spiral groove 56 is provided on the surface of the pulling column 54 , and the spiral groove 56 is adapted to the pulling belt 55 ;

[0042] It should be noted that the spiral groove 56 is used to limit the position where the pulling belt 55 is wound around the surface of the spiral groove 56;

[0043] In a further embodiment, a sliding shaft 57 is fixedly connected to the surface of the transfer rod 53, and a sliding groove 58 is opened inside the transfer gear 52, and the sliding shaft 57 is adapted to the sliding groove 58;

[0044] In some specific embodiments, a movable groove 61 is formed on the surface of the clamping rod 33, and a movable shaft 62 is fixedly connected to one side of the clamping block 34 close to the clamping rod 33, and the movable shaft 62 is adapted to the movable groove 61;

[0045] The working principle of the present invention is as follows: the metal shell to be cleaned is placed on the surface of the placement block 2, the placement block 2 is moved up, the metal shell is moved to the horizontal position of the clamping block 34, and then the telescopic block 31 is slid to cause the surface of the clamping rod 33 to contact the metal shell, the motor is started, and the driving column 51 is caused to rotate. The rotation of the driving column 51 drives the pulling column 54 to rotate, and then the pulling belt 55 contracts, the distance between the clamping blocks 34 changes, the clamping blocks 34 clamp the metal shell, and after the driving column 51 rotates a certain angle, it drives the transfer gear 52 to rotate, causing the clamping column 32 and the clamping block 34 to rotate synchronously, and the metal shell rotates to clean sand.

[0046] The above embodiments are only used to illustrate the technical method of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A sand cleaning device for a metal shell, characterized in that: include: A sand cleaning box (1) is provided, wherein a placement block (2) is slidably connected to the inside of the sand cleaning box (1), and a clamping mechanism is provided inside the sand cleaning box (1), wherein the clamping mechanism comprises: Two telescopic blocks (31), each of which is slidably connected to the inside of the sand cleaning box (1), and the two telescopic blocks (31) are symmetrically arranged inside the sand cleaning box (1); Two clamping columns (32) are rotatably connected to the inside of the telescopic block (31); two clamping rods (33) are fixedly connected to the side of the clamping column (32) away from the telescopic block (31); the two clamping rods (33) are located on the same horizontal line and are symmetrically arranged; and the inside of each clamping rod (33) is slidably connected to a clamping block (34).

2. A sand cleaning device for a metal shell according to claim 1, characterized in that: A guide groove (41) is provided inside the placement block (2), and the extension lines of the two edge lines on the cross section of the guide groove (41) intersect on the side of the placement block (2) close to the clamping block (34), and the guide groove (41) partially passes through the side of the placement block (2) away from the clamping block (34).

3. The sand cleaning device for a metal shell according to claim 1, characterized in that: A driving column (51) and a transfer gear (52) are rotatably provided inside the sand cleaning box (1); a transfer rod (53) is fixedly connected to one end of the clamping column (32) away from the clamping block (34); the transfer rod (53) is slidably connected to the transfer gear (52); a pulling column (54) is rotatably connected to one end of the clamping column (32) away from the clamping block (34); and the pulling column (54) is slidably connected to the surface of the driving column (51).

4. The sand cleaning device for a metal shell according to claim 3, characterized in that: A pulling belt (55) is fixedly connected between the pulling column (54) and the clamping block (34). A spiral groove (56) is provided on the surface of the pulling column (54), and the spiral groove (56) is adapted to the pulling belt (55).

5. The sand cleaning device for a metal shell according to claim 3, characterized in that: The surface of the transfer rod (53) is fixedly connected with a sliding shaft (57), and a sliding groove (58) is provided inside the transfer gear (52), and the sliding shaft (57) is adapted to the sliding groove (58).

6. The sand cleaning device for a metal shell according to claim 1, characterized in that: The surfaces of the clamping rods (33) are provided with moving grooves (61), and a moving shaft (62) is fixedly connected to one side of the clamping block (34) close to the clamping rod (33), and the moving shaft (62) is adapted to the moving grooves (61).

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