JP2012020413A - Resin molding deburring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a deburring device in which the device itself is miniaturized, the devices are arranged in the condition that they are mutually close along a profile edge of a resin molding, and deburring work of the resin molding is efficiently done in high accuracy, and which performs finishing of product good.SOLUTION: The deburring device includes: a molding support member 11 having a projection which is in agreement with the inside shape of a resin molding 13 and on which the resin molding 13 is laid; and many deburring members 21 arranged so as to be mutually close along the profile edge of the resin molding 13 laid on the molding support member. Each of the deburring members 21 includes: a cylinder member 23 which has two or more piston rods 23b in which mutual axes are parallel, and which are supported to slide in the state of detent; a heat dissipation member 25 which is fixed to the axial end of the piston rod 23b and has two or more heat dissipation sections; a heating member 27 prepared at the heat dissipation member 25; and heating blade 29 which is prepared at the heating member 27 and consists of the shape of projection which is in agreement with the profile edge of the resin molding facing each other.

Description

TECHNICAL FIELD The present invention relates to a resin molded product deburring apparatus that heats and removes burrs generated by a parting line or a gate of a mold when a resin molded product is molded.
About.

Generally, burrs are likely to occur on the parting lines and gates corresponding to the joints of molds on the surface of plastic molded products manufactured by injection molding and other molding methods. there were. Therefore, conventionally, burrs generated in such parting lines and gates are cut and removed with a cutting tool such as a knife or a file to finish a resin molded product.

When such work is performed manually, not only the finishing accuracy is varied, but also the work efficiency is poor and the yield of the product is greatly reduced. For this purpose, for example, a deburring device for a resin molded product shown in Patent Document 1 has been proposed.

The resin molded product deburring device shown in Patent Document 1 is a high temperature iron heated to a temperature that does not reach the melting temperature of the resin, and lower than the temperature of the high temperature iron, with respect to the resin molded product supported by the fixed base. The intermediate temperature iron heated to a temperature that does not adhere to the iron even if the iron is pressed against the burr is positioned and moved by the fixed same mechanism, and the high temperature iron does not first contact the burr of the resin molded product The burrs are softened by bringing them close to each other, and then, the burrs are crushed and removed by the burrs softened by the medium temperature iron.

In order to remove burrs generated on the outer edge of the resin molded product by the deburring device, it is necessary to move the iron with high positional accuracy along the outer edge with respect to the burr portion of the resin molded product. As the moving mechanism, for example, a guide member such as a guide rod or a linear guide that supports and guides the movement of the iron needs to be provided together with a moving member such as an air cylinder. For this reason, the deburring device has a problem that the guide mechanism provided together with the moving mechanism is increased in size and width, and requires a wide mounting space.

The above-mentioned problem appears remarkably when configured as a deburring device for a large resin molded product having a large curved outer shape such as a vehicle panel. In order to remove the burrs from the large resin molded product described above, a large number of deburring devices are arranged along the outer edge relative to the outer shape of the resin molded product, and each deburring device is driven at the same time. Therefore, it is necessary to simultaneously remove burrs generated on the outer edge of the resin molded product.

However, as described above, in the conventional deburring apparatus, the moving mechanism itself is enlarged by the guide mechanism, and the lateral width per unit (in the direction along the outer shape of the resin molded product) is increased. Thus, it is difficult to arrange a plurality of deburring devices so as to be in close contact with each other along the outer edge of the resin molded product. For this reason, the entire burr of the resin molded product cannot be removed by a single deburring operation, and in order to remove the entire burr, it is necessary to perform a plurality of deburring operations, resulting in poor deburring work efficiency. .

In particular, it is necessary to increase the finishing accuracy by arranging multiple deburring devices in close contact with each other in the curved outer shape of a resin molded product. Since it is difficult to arrange the deburring devices in close contact with each other, it was not possible to efficiently remove burrs from the curved outer shape.

Japanese Patent Laid-Open No. 2003-340838

The problem to be solved is that the moving mechanism itself is increased in size by the guide mechanism, and the width of each unit (in the direction along the outer shape of the resin molded product) is increased, so that multiple deburring devices can be connected to the outer shape of the resin molded product. It is difficult to dispose them in close contact with each other. The entire deburring of the resin molded product cannot be removed at the same time by one deburring operation, and the deburring operation efficiency is deteriorated.

  The present invention relates to a molded product support member having a protrusion on which the resin molded product is placed, which matches the inner surface shape of the resin molded product, and an outer edge of the resin molded product placed on the molded product support member. And a plurality of deburring members arranged so as to be in close contact with each other, each deburring member having a plurality of piston rods supported so that their axes are parallel and slide in a non-rotating state. Cylinder member, a heat dissipating member fixed to the shaft end of the piston rod and having a plurality of heat dissipating portions, a heating member provided on the heat dissipating member, and a resin molded product provided on the heating member and opposed to each other The main feature is that it consists of a heating blade having a projecting shape that matches the outer edge of the.

  The present invention reduces the size of the device itself and places it in close contact with each other along the outer edge of the resin molded product to efficiently perform deburring work on the resin molded product with high accuracy and to achieve a good product finish. be able to.

It is a schematic perspective view showing an outline of a resin molded product deburring device. It is a schematic front view of a resin molded product deburring device. It is a perspective view of a deburring member. It is explanatory drawing which shows the set state of the resin molded product. It is explanatory drawing which shows the positioning state of a resin molded product. It is explanatory drawing which shows the deburring state of a resin molded product.

  According to the present invention, each deburring member is fixed to a cylinder member having a plurality of piston rods whose axes are parallel to each other and supported so as to slide in a non-rotating state, and to the shaft end portion of the piston rod. A heat dissipating member having a plurality of heat dissipating parts, a heating member provided on the heat dissipating member, and a heating blade provided on the heating member and having a protruding shape that matches the outer edge of the opposite resin molded product. The configuration is the best embodiment.

The present invention will be described below with reference to the drawings showing examples.
As shown in FIGS. 1 to 3, a body frame (not shown) of the resin molded product deburring apparatus 1 is supported by a lifting / lowering table 5 that can be moved up and down by a vertical guide shaft 7. A predetermined stroke in accordance with driving of a vertically moving member 9 such as a drive chain that spans the cylinder and is connected to an electric motor (the figure shows an example in which a cylinder member is used as the vertical drive member 9). Is lifted up and down.

  A support plate 11 as a molded product support member is supported on the lifting platform 5 so as to swing, and a protrusion having a shape matching the inner surface of the resin molded product 13 to be deburred is provided on the upper surface of the support plate 11. The pseudo core 15 is provided. The support plate 11 is swung between a tilting position inclined at a predetermined angle with respect to the lifting platform 5 and a horizontal position where the supporting plate 11 is in a horizontal state by a swinging member 17 such as a cylinder attached to the lifting platform 5.

  A positioning member 19 having a recess corresponding to a part of the outer shape of the resin molded product 13 is attached to the main body frame located above the elevator 5 so as to be opposed to the horizontal support pseudo core 15. . The positioning member 19 positions the upper part of the resin molded product 13 set on the pseudo core 15 in the recess when the elevator 5 is moved upward.

  A large number of deburring members 21 are arranged on the upper part of the main body frame so as to be in close contact with each other along the outer edge of the resin molded product 13. Each deburring member 21 has a cylinder member 23, a heat radiation member 25 fixed to the shaft end of the rod 23a of the cylinder member 23, and a heat radiation member 25, and a heater such as a sheathed heater or an electric heater is incorporated therein. And a heating blade 29 attached to the front surface of the heating member 27 and formed in a protruding shape corresponding to the outer edge of the resin molded product 13.

  In some cases, the boundary portion between the product 13a and the burr 13b is located at a position with respect to the upper surface of the pseudo core 15 as in the resin molded product 13 shown in the figure. In this case, the attachment position of the deburring member 21 corresponding to the location may be attached with an interval corresponding to the height with respect to the attachment position of the other deburring member 21.

  The cylinder member 23 has shaft ends of two piston rods 23b each having an axial line whose axial direction coincides with a piston (not shown) supported so as to slide in the axial direction within the cylinder tube 23a. These piston rods 23b are slidable in the axial direction in an airtight state via a shaft support 23d formed in a closing block 23c that closes the end of the cylinder tube 23a, and are supported in a non-rotating state. Projecting outside.

  The heat dissipating member 25 is made of a metal material such as aluminum having high thermal conductivity, for example, and a plurality of heat dissipating studs 25b projecting forward from the mounting plate 25a to which the shaft ends of the two piston rods 23b are fixed are integrally provided. It has been.

  The heating member 27 is fixed to the front end of the heat radiation stud 25b via a heat insulating material 28, and a heating blade 29 is provided on the front surface thereof. The heating blade 29 is formed by melting the resin molded product 13. Heat to possible temperature. The heating blade 29 is formed in a linear or curved shape that matches the outer edge of the corresponding resin molded product 13 and has a protrusion with an appropriate height. A large number of heating blades 29 adjacent to each other coincide with the outer edge of the resin molded product 13, and melt and cut the boundary between the product 13a and the burr 13b of the resin molded product 13.

Next, a deburring operation by the resin molded product deburring apparatus 1 configured as described above will be described.
In a state where the up-and-down moving member 9 is operated to move the lifting platform 5 to the lower position, the swinging member 17 is operated to tilt the support plate 11 at a predetermined angle so that the pseudo core 15 faces the operator. In this state, the operator fits the resin molded product 13 to be deburred with respect to the pseudo core 15 and sets it on the support plate 11. (See Figure 4)

  Next, after the swinging member 17 is moved back to return the support plate 11 to the horizontal state, the up-and-down moving member 9 is moved back to move the lifting platform 5 to the upper position, and the resin molded product set on the support plate 11 A part of the outer surface of 13 is engaged with the recess of the positioning member 19 to be fixed. Accordingly, the resin molded product 13 set on the support plate 11 is positioned with respect to each deburring member 21, and each heating blade 29 is positioned at the boundary between the product 13 a and the burr 13 b as the outer edge of the resin molded product 13. Is done. (See Figure 5)

  Next, in the above-described state, the cylinder member 23 is operated and the two piston rods 23c are operated in the direction of extending simultaneously, and the heating blade 29 heated to a temperature at which the synthetic resin can be melted by the heating member 27 is resin-molded. The product 13a is melted and cut in contact with the boundary between the product 13a as the outer edge of the product 13 and the burr 13b.

At this time, in the cylinder member 23, the two piston rods 23b fixed to one piston are supported by the shaft support portion 23d of the closing block 23c and are prevented from rotating, and are slidably guided in the axial direction. Therefore, the heating blade 29 is moved with high positional accuracy against the boundary between the product 13a and the burr 13b as the outer edge of the resin molded product 13.

Moreover, since the heating member 27 and the heating blade 29 are attached to the two piston rods 23b via the heat dissipation member 25, the amount of heat conducted by the heating member 27 is reduced, and the cylinder member 23 is heated excessively. To prevent malfunction. (See Figure 6)

  Note that the burr 13b melted and cut by the heating blade 29 by the above action is removed by suction by an operator or by a suction device (not shown). Further, after the melt cutting of the burr 13b, the cylinder members 21 are moved back to return the two piston rods 23b to their original positions, and then the vertical movement member 9 is operated to move the lifting platform 5 downward. Thus, the deburred resin molded product 13 (product 13a) can be taken out.

  In the present embodiment, by providing two piston rods 23b having a guide function on the cylinder member 23, it is not necessary to provide a guide shaft or a linear guide separately from the cylinder member as in the prior art. The heating blade 29 can be brought into contact with the boundary with high positional accuracy and melted and cut.

As a result, the deburring member 21 can be reduced in size and the mounting space can be reduced, and a large number of deburring members 21 are arranged in close contact with each other along the outer edge of the resin molded product 13 to remove the burr 13b. The finishing accuracy of the product 13a can be improved.

In the above description, the two piston rods 23b are fixed to the piston of the cylinder member 23, and the piston rods 23b are supported so as to be slidable. However, three or more piston rods are fixed to the piston. It may be a structure.

In the above description, the lifting platform 5 is moved upward so that the entire or part of the outer shape of the resin molded product 13 set on the support plate 11 can be positioned by engaging the positioning member 19 with the recess. However, a configuration is provided in which a large number of suction holes connected to a negative pressure generating means (not shown) are formed in the pseudo core 15 and the resin molded product 13 set in the pseudo core 15 can be positioned by suction with a negative pressure. Also good.

DESCRIPTION OF SYMBOLS 1 Resin molded product deburring apparatus 5 Elevating stand 7 Vertical guide shaft 9 Vertical moving member 11 Support plate 13 as molded product support member Resin molded product 13a Product 13b Burr 15 Pseudo core 17 Swing member 19 Positioning member 21 Deburring member 23 Cylinder Member 23a Cylinder tube 23b Piston rod 23c Closure block 23d Shaft support 25 Radiating member 25a Mounting plate 25b Heat dissipating stud 27 Heating member 28 Heat insulating material 29 Heating blade

Claims (7)

A molded product support member having a protrusion on which the resin molded product is placed, corresponding to the inner surface shape of the resin molded product,
A number of deburring members arranged in close contact with each other along the outer edge of the resin molded product placed on the molded product support member;
With
Each deburring member includes a cylinder member having a plurality of piston rods whose axes are parallel to each other and supported so as to slide in a non-rotating state, and a plurality of deburring members fixed to the shaft end of the piston rod. A heat dissipating member having a heat dissipating part, a heating member provided on the heat dissipating member, a heating blade provided on the heating member and having a protruding shape that matches the outer edge of the opposing resin molded product,
A resin molded product deburring device comprising: 2. The molded product support member according to claim 1, wherein the molded product support member is formed with a plurality of suction holes connected to the negative pressure generating means, and the resin molded product set at the protrusion can be positioned by negative pressure suction. Take-off device. 2. The resin molded product according to claim 1, wherein the resin molded product is engaged with the molded product support member at a position facing the molded product support member at a predetermined interval. Resin molded product deburring device provided with positioning members to be fixed. 4. The resin molded product deburring device according to claim 3, wherein any one of the molded product support member and the positioning member is movably provided in a direction approaching and separating from the opposite member. 2. The resin molded product deburring device according to claim 1, wherein the molded product support member is supported so as to be swingable between a tilt position and a horizontal position at a predetermined angle with respect to the support base. 2. The resin molded product deburring device according to claim 1, wherein the protrusion matches the inner surface shape of the resin molded product and the recess matches the outer surface shape of the resin molded product. 2. The cylinder member according to claim 1, wherein the cylinder member has a piston that is slidably supported in the axial direction in the cylinder tube, and an axis line in a direction that coincides with the axis line of the cylinder tube, and the shaft end portion is fixed to the piston. A resin molded product deburring device comprising at least two piston rods and a closed block fixed to the opening of the cylinder tube and inserted through the piston rods to prevent rotation and slide.

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