Laminated grain eliminating tool

Abstract

The layered grain eliminating tool comprises a handle, two reference parts, a polishing part and an adjusting part, the handle is sleeved with the two reference parts, and the reference parts are provided with reference surfaces; the grinding piece is arranged on the handle in a sleeving mode, the grinding piece is arranged between the two reference pieces and elastically connected with the handle, the grinding piece is provided with a grinding face, and the grinding face and the reference pieces both meet the shape requirement of the surface of a sand core to be treated; the adjusting piece is used for adjusting the grinding depth of the grinding piece to be the thickness of the layer grain. Laminated grains on the surface of the sand core are treated by operating the handle. And in the layer grain treatment process, whether the layer grains on the to-be-treated surface of the sand core are completely polished and removed or not is judged by observing the fitting degree of the reference surface and the surface of the sand core. The grinding depth of the grinding piece is set to be the thickness of the layer grains through the adjusting piece, the layer grains on the surface of the sand core are ground and removed through the grinding face, and the layer grains on the surface of the sand core are eliminated.

Description

Technical Field

[0001] The invention relates to the technical field of 3D printing sand core surface treatment, and in particular to a layer pattern elimination tool. Background Art

[0002] 3D printing is widely used in the manufacturing field, especially in smart casting. Existing 3D printing technology can meet the needs of complex-shaped sand core forming and improve efficiency, but due to the characteristics of the printing raw and auxiliary materials themselves, the printed sand cores have uneven transition surfaces. At present, 3D printed sand cores will have varying degrees of layering on inclined surfaces, curved surfaces, or fillets. When used in the production of artistic models, there are high requirements for surface smoothness and detail. In order to make the surface of the finished model meet the requirements, the layering of the 3D printed sand core needs to be processed. Summary of the invention

[0003] Based on this, it is necessary to provide a layer pattern elimination tool that is highly adaptable, easy to operate and convenient to use to address the problem of difficult surface layer pattern processing on 3D printed sand cores.

[0004] A layer pattern elimination tool, the layer pattern elimination tool comprising:

[0005] handle;

[0006] A reference piece, two of which are sleeved on the handle, and each of which is provided with a reference surface;

[0007] A grinding piece, the grinding piece is sleeved on the handle, the grinding piece is arranged between the two reference pieces and elastically connected to the handle, the grinding piece is provided with a grinding surface, and the grinding surface and the reference surface both meet the shape requirements of the surface of the sand core to be processed;

[0008] An adjusting member is used to adjust the grinding depth of the grinding member to the layer thickness.

[0009] In one of the embodiments, the layer pattern elimination tool further includes a spring, the handle is provided with a connecting groove, the spring is vertically arranged in the connecting groove and elastically abuts against the grinding piece.

[0010] In one embodiment, there are two connecting grooves and two springs, and the positions of the two connecting grooves correspond to the two end positions of the grinding piece respectively.

[0011] In one embodiment, the adjusting member is a screw, a first matching hole is formed on the handle, a second matching hole is formed on the grinding member, and the screw is connected to the first matching hole and the second matching hole for adjusting the grinding depth of the grinding member.

[0012] In one embodiment, the first matching hole is a threaded hole, and the second matching hole is a through hole.

[0013] In one embodiment, the grinding piece and the reference piece are both provided with connecting square holes, and the handle is passed through the connecting square holes.

[0014] In one of the embodiments, the layer pattern elimination tool further includes a fastener, which is fastened to the end of the handle and is used to limit the position of the reference piece and the grinding piece.

[0015] In one embodiment, the layer pattern elimination tool further includes a gasket, which is sleeved on the handle and arranged between the fastener and the reference member.

[0016] The above-mentioned layer pattern elimination tool processes the layer patterns on the surface of the sand core by operating the handle. Both reference parts on the handle are provided with reference surfaces, and the shapes of the reference surfaces meet the shape requirements of the surface of the sand core to be processed and can fit with the surface of the sand core. During the layer pattern processing process, the degree of fit between the reference surface and the surface of the sand core is observed to determine whether the layer patterns on the surface to be processed of the sand core have been completely polished and removed. The polishing piece is arranged between the two reference parts and elastically connected to the handle. The polishing piece is provided with a polishing surface, and the shape of the polishing surface meets the shape requirements of the surface of the sand core to be processed. The polishing depth of the polishing piece is set to the layer pattern thickness by the adjusting piece, and the layer patterns on the surface of the sand core are polished and removed by the polishing surface, thereby achieving the elimination of the layer patterns on the surface of the sand core. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of a layer pattern elimination tool in an embodiment;

[0018] Figure 2 is an exploded view of a layer pattern removal tool in one embodiment;

[0019] Figure 3 is a schematic diagram of a partial structure of a layer pattern elimination tool in an embodiment;

[0020] Figure 4 Schematic diagram of sand core layer patterns in one embodiment.

[0021] Description of labels:

[0022] 1. Handle; 2. Reference part; 3. Grinding part; 4. Fastener; 5. Spring; 6. Adjustment part; 7. Connecting groove; 8. First matching hole; 9. Gasket; 10. Connecting square hole; 11. Second matching hole.

[0023] A. Surface striations. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0030] See also Figures 1 to 4 A layer pattern elimination tool is provided in one embodiment of the present invention, and the layer pattern elimination tool comprises: a handle 1, a reference part 2, a grinding part 3 and an adjusting part 6, wherein the two reference parts 2 are sleeved on the handle 1, and the reference part 2 is provided with a reference surface; the grinding part 3 is sleeved on the handle 1, and the grinding part 3 is arranged between the two reference parts 2 and elastically connected to the handle 1, and the grinding part 3 is provided with a grinding surface, and the grinding surface and the reference surface both meet the shape requirements of the surface of the sand core to be processed.

[0031] The above-mentioned layer pattern elimination tool processes the layer pattern A on the surface of the sand core by operating the handle 1. The two reference parts 2 on the handle 1 are both provided with a reference surface, and the shape of the reference surface meets the shape requirements of the surface of the sand core to be processed and can fit with the surface of the sand core. During the layer pattern processing process, the degree of fit between the reference surface and the surface of the sand core is observed to determine whether the layer pattern on the surface to be processed of the sand core has been completely polished and removed. The polishing piece 3 is arranged between the two reference parts 2 and elastically connected to the handle 1. The polishing piece 3 is provided with a polishing surface, and the shape of the polishing surface meets the shape requirements of the surface of the sand core to be processed. The polishing depth of the polishing piece 3 is set to the layer pattern thickness by the adjusting piece 6, and the layer pattern on the surface of the sand core is polished and removed by the polishing surface, so as to achieve the elimination of the layer pattern A on the surface of the sand core.

[0032] In order to ensure that the grinding surface of the grinding piece 3 is always in effective contact with the surface of the sand core and ensure the grinding effect, in one embodiment, the layer pattern elimination tool also includes a spring 5, the handle 1 is provided with a connecting groove 7, the spring 5 is upright in the connecting groove 7, and is elastically abutted against the grinding piece 3, thereby providing support for the grinding piece 3 through the spring 5.

[0033] Optionally, in order to ensure that the grinding piece 3 receives sufficient supporting force, the elastic modulus of the spring 5 should not be too large or too small, and the rigidity of the spring 5 can meet the requirements, so as to ensure that the supporting force provided by the spring 5 is greater than the contact pressure between the grinding surface and the sand core surface, thereby achieving effective grinding of the sand core surface.

[0034] Optionally, in one embodiment, there are two connecting grooves 7 and two springs 5, and the positions of the two connecting grooves 7 correspond to the two end positions of the grinding piece 3 respectively. The grinding piece 3 is elastically connected to the handle 1 through the two springs 5 ​​and the overall stability of the grinding piece 3 is ensured, so that the grinding piece 3 can maintain a stable posture during the grinding process.

[0035] In order to ensure that the height difference between the grinding surface and the reference surface remains consistent, in one embodiment, the adjusting member 6 is a screw, the handle 1 is provided with a first matching hole 8, the grinding member 3 is provided with a second matching hole 11, and the screw is connected to the first matching hole 8 and the second matching hole 11 to adjust the grinding depth of the grinding member 3. The height difference of the grinding surface relative to the reference surface is adjusted by screwing the screw in and out so that the height difference is equal to the thickness of the layer grain on the surface of the sand core. When the grinding surface is worn during the grinding process, the height of the grinding surface is adjusted by the screw so that the height difference of the grinding surface relative to the reference surface meets the thickness of the layer grain. When the reference surface is completely fitted with the surface of the sand core after grinding, it can be determined that the layer grain has been completely polished away.

[0036] In one embodiment, the first matching hole 8 is a threaded hole, and the second matching hole 11 is a through hole, so as to realize screwing in and out of the screw.

[0037] In one embodiment, the grinding piece 3 and the reference piece 2 are both provided with a connecting square hole 10 , and the handle 1 is inserted into the connecting square hole 10 .

[0038] In one of the embodiments, a gap is left after the connecting square hole 10 of the grinding piece 3 is sleeved on the handle 1, so as to provide a movable space for the grinding piece 3 in the grinding depth direction.

[0039] Optionally, the grinding surface of the grinding piece 3 can be set to a curved surface, a bevel, a rounded corner, etc., so as to process the layer patterns of the sand core at different positions and different shapes of the surface, thereby improving the adaptability.

[0040] In one embodiment, the layer pattern elimination tool further comprises a fastener 4, which is fastened to the end of the handle 1 and is used to limit the reference member 2 and the grinding member 3. Optionally, the fastener 4 is provided with an internal thread, and the end of the handle 1 is provided with an external thread.

[0041] In one of the embodiments, the layer pattern elimination tool further includes a gasket 9 , which is sleeved on the handle 1 and disposed between the fastener 4 and the reference member 2 .

[0042] Optionally, the reference part is made of wear-resistant material Cr12MoV mold steel, and the grinding part is made of diamond material with abrasive grains.

[0043] The above-mentioned layer pattern elimination tool processes the layer patterns on the surface of the sand core by operating the handle 1. The two reference parts 2 on the handle 1 are both provided with reference surfaces, and the shapes of the reference surfaces meet the shape requirements of the surface of the sand core to be processed and can fit with the surface of the sand core. During the layer pattern processing process, the degree of fit between the reference surface and the surface of the sand core is observed to determine whether the layer patterns on the surface to be processed of the sand core have been completely polished and removed. The polishing piece 3 is arranged between the two reference parts 2 and elastically connected to the handle 1. The polishing piece 3 is provided with a polishing surface, and the shape of the polishing surface meets the shape requirements of the surface of the sand core to be processed. The polishing depth of the polishing piece 3 is set to the layer pattern thickness by the adjusting piece 6. The layer patterns on the surface of the sand core are polished and removed by the polishing surface, thereby eliminating the layer patterns A on the surface of the sand core.

[0044] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A layer pattern removal tool, It is characterized in that The layer pattern elimination tool comprises: handle; A reference piece, two of which are sleeved on the handle, and each of which is provided with a reference surface; A grinding piece, the grinding piece is sleeved on the handle, the grinding piece is arranged between the two reference pieces and elastically connected to the handle, the grinding piece is provided with a grinding surface, and the grinding surface and the reference surface both meet the shape requirements of the surface of the sand core to be processed; An adjusting member is used to adjust the grinding depth of the grinding member to the layer thickness.

2. The layer pattern removal tool according to claim 1, It is characterized in that The layer pattern elimination tool also includes a spring. The handle is provided with a connecting groove. The spring is vertically arranged in the connecting groove and elastically abuts against the polishing piece.

3. The layer pattern elimination tool according to claim 2, It is characterized in that There are two connecting grooves and two springs, and the positions of the two connecting grooves correspond to the positions of the two ends of the grinding piece respectively.

4. The layer pattern elimination tool according to claim 1, It is characterized in that The adjusting member is a screw, the handle is provided with a first matching hole, the grinding member is provided with a second matching hole, and the screw is connected with the first matching hole and the second matching hole to adjust the grinding depth of the grinding member.

5. The layer pattern elimination tool according to claim 4, It is characterized in that The first matching hole is a threaded hole, and the second matching hole is a through hole.

6. The layer pattern elimination tool according to claim 1, It is characterized in that The polishing piece and the reference piece are both provided with connecting square holes, and the handle is passed through the connecting square holes.

7. The layer pattern elimination tool according to claim 1, It is characterized in that The layer pattern elimination tool also includes a fastener, which is fastened to the end of the handle and is used to limit the reference piece and the grinding piece.

8. The layer pattern elimination tool according to claim 7, It is characterized in that The layer pattern elimination tool also includes a gasket, which is sleeved on the handle and arranged between the fastener and the reference member.

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