JP4066300B2 - Continuous shot blasting equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a continuous shot blasting apparatus for blasting a product having a complicated shape in which various shapes are integrally attached to an eccentric shaft or a rotary shaft, such as a crankshaft or a camshaft.
[0002]
[Prior art]
Conventionally, as a continuous shot blasting apparatus for blasting products as described above, a screw conveyor is provided in the shot blast cabinet in parallel and inclined in the longitudinal direction, and the product is reversed on the outer periphery of the body of the screw conveyor. Japanese Patent Laid-Open No. 3-26465 discloses a projecting projection.
[0003]
[Problems to be solved by the invention]
However, in the continuous shot blasting device as described above, since the product is continuously advanced by the screw conveyor, the convex portion for product reversal does not function sufficiently and the product reversal becomes insufficient, so that the whole product There was a problem that it was not possible to uniformly blast. Further, there is a problem that the reversing convex portion cannot cope with a product whose shape changes greatly.
The present invention has been made in view of the above problems, and can be easily reversed while conveying a processed product having a complicated shape such as a crankshaft or a camshaft, and can be applied to various types of products. An object is to provide a shot blasting apparatus.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, the continuous shot blasting apparatus according to the present invention has product carry-in ports and product carry-out ports arranged at different positions on both sides of a horizontally long cabinet, and the product from the product carry-in port. Two roller bodies that can rotate in the same direction over the carry-out port are spaced apart and inclined in parallel at different top height positions, and the outer circumference of the roller body having a high top height position. In addition, a continuous screw lead is attached to both ends, an intermittent screw lead cut at a constant interval is attached to the center portion, and a plurality of products are provided at positions corresponding to the cut portions of the intermittent screw lead. A reversing projection is mounted, and the two roller bodies are roller bodies having different diameters .
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a longitudinal sectional view showing the whole of a continuous shot blasting apparatus. A plurality of projectors 2 and 2 are provided at an upper portion of a horizontally long cabinet 1 at an appropriate interval. A screw conveyor 3 for carrying out the projection material is provided at the bottom of the projector.
Further, a product carry-in port 4 is provided at the upper right end of the cabinet 1, and a product carry-out port 5 is provided at the left side of the cabinet 1, and the product carry-in port 4 is positioned higher than the product carry-out port 5. Has been.
[0006]
Two roller bodies 6 and 7 having the same diameter that can rotate in the same direction from below the product carry-in port 4 to the product carry-out port 5 are spaced apart from each other (see FIGS. 2 and 3) and have a top height. Inclined and arranged in parallel at different positions. On the outer periphery of the roller body 7 having a high apex height position among the two roller bodies 6 and 7, continuous screw leads 8 and 9 are attached to both ends, with a constant interval in the center. A disconnected intermittent screw lead 10 is attached. A plurality of product reversing projections 11 are detachably mounted at positions corresponding to the cut portions of the intermittent screw lead 10.
[0007]
The roller body 6 having a low top height is a cylindrical shape to which no projecting members (for example, continuous screw leads 8 and 9, intermittent screw leads 10 and projections 11 and 11) are attached. It is made into a roller body. As a result, the product W is not caught by the protruding member during the conveyance, and the maintainability is improved. In addition, even if the rotational speeds of the two roller bodies 6 and 7 are slightly different, there is no adverse effect on the transport of the product W (the product W is caught on the protruding member during the transport). It becomes easy.
[0008]
Further, the diameters of the two roller bodies 6 and 7 may be changed with the same axial center height. In that case, continuous and intermittent screw leads 8, 9, and 10 and protrusions 11 and 11 are mounted on a large diameter roller body.
Further, as shown in FIGS. 3 and 4, the protrusions 11 and 11 have a configuration in which a low protrusion 13 is disposed at a rotational front position of the high protrusion 12. Reference numeral 14 in the figure denotes a protective plate for protecting the screw conveyor 3.
[0009]
In such a configuration, products W such as a crankshaft or a camshaft are sequentially introduced from the product carry-in port 4 while rotating the roller bodies 6 and 7 in the direction of the arrow in FIG.
When the charged product W is moved forward by the continuous screw 8 and conveyed to the position of the intermittent screw 10, as shown in FIG. 3, the delivery and projection by the intermittent screw 10. The object 11, 11 is scooped up by the objects 11, 11 and is repeatedly inverted in the upper direction of the roller body 6 at the lower position. The object moves forward while being inverted, and receives the projection of the projection material from the projectors 2, 2. The entire surface is blasted uniformly.
[0010]
The product W whose entire surface has been uniformly blasted in this way is transferred to the position of the continuous screw lead 9, is transported to the product outlet 5, and is carried out. By continuously performing such an operation, the product W having a complicated shape can be subjected to uniform blasting over the entire surface reliably and efficiently.
Even if the size or shape of the product to be processed is changed, the protrusion 11 has a structure in which the low protrusion 13 is disposed at the position in front of the rotation of the high protrusion 12. On the contrary, a product having a small shape is scooped up by a high protrusion 12 so that it can be used for various products.
Furthermore, the conveyance speed and the degree of reversal of the product can be arbitrarily changed by changing the number of rotations of the two roller bodies 6 and 7 or exchanging the protrusions 11.
[0011]
【The invention's effect】
As is apparent from the above description, the present invention arranges the product carry-in port and the product carry-out port at different positions on both sides of the horizontally long cabinet, and extends from the product carry-in port to the product carry-out port. Two roller bodies which can rotate in the same direction are spaced apart and inclined in parallel with different top height positions, and are continuously connected to both ends at the outer periphery of the roller body having a high top height position. A screw lead is attached, an intermittent screw lead cut at a constant interval is attached to the center portion, and a plurality of product reversing protrusions are provided at positions corresponding to the cut portion of the intermittent screw lead. Since the two roller bodies are mounted so that they have different diameter diameter roller bodies, the processed product having a complicated shape is reliably and efficiently reversed to uniformly blast the entire surface of the product. As well as many types of products There are an equal variety of effects that can respond.
[Brief description of the drawings]
FIG. 1 is a configuration longitudinal sectional view of a continuous shot blasting apparatus of the present invention.
FIG. 2 is a view taken in the direction of arrows AA in FIG.
FIG. 3 is an enlarged view taken along the line BB in FIG. 1;
4 is an enlarged view of a portion C in FIG. 1 and a left side view thereof. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cabinet 4 Product inlet 5 Product outlet 6 7 Roller body 8 9 Continuous screw lead 10 Intermittent screw lead 11 Protrusion 12 High protrusion 13 Low protrusion W Product

Claims (3)

A product carry-in port 4 and a product carry-out port 5 are arranged at different positions on both sides of the horizontally long cabinet 1, and can be rotated in the same direction from the product carry-in port 4 to the product carry-out port 5. The roller bodies 6 and 7 are spaced apart and arranged in parallel at different top height positions, and a continuous screw is provided at both ends on the outer periphery of the roller body 7 having a high top height position. -Attached to the center 8 is an intermittent screw lead 10 which is cut at a constant interval, and a plurality of product reversing protrusions at positions corresponding to the cut portion of the intermittent screw lead 10 A continuous shot blasting apparatus , wherein the objects 11 and 11 are mounted, and the two roller bodies 6 and 7 are roller bodies having different diameters . A product carry-in port 4 and a product carry-out port 5 are arranged at different positions on both sides of the horizontally long cabinet 1, and can be rotated in the same direction from the product carry-in port 4 to the product carry-out port 5. The roller bodies 6 and 7 are spaced apart and inclined in parallel with different top height positions, and continuous screws are provided at both ends on the outer periphery of the roller body 7 having a high top height position. -Attached to the center 8 is an intermittent screw lead 10 which is cut at regular intervals, and a plurality of product reversing protrusions at positions corresponding to the cut portion of the intermittent screw lead 10 The continuous shot blasting apparatus, wherein the objects 11 and 11 are mounted, and the protrusion 11 has a structure in which a low protrusion 13 is disposed at a rotational front position of the protrusion 12 having a high height. A product carry-in port 4 and a product carry-out port 5 are arranged at different positions on both sides of the horizontally long cabinet 1, and can be rotated in the same direction from the product carry-in port 4 to the product carry-out port 5. The roller bodies 6 and 7 are spaced apart and inclined in parallel with different top height positions, and continuous screws are provided at both ends on the outer periphery of the roller body 7 having a high top height position. -Attached to the center 8 is an intermittent screw lead 10 which is cut at regular intervals, and a plurality of product reversing protrusions at positions corresponding to the cut portion of the intermittent screw lead 10 It is characterized in that the objects 11, 11 are mounted, and the roller body 6 having a low top height position in the two roller bodies 6, 7 is a roller body to which no projecting member is attached. Continuous shot blasting equipment.

Images