JP7013269B2 - Deburring device and deburring method - Google Patents

Description

The present invention relates to a deburring apparatus and a deburring method.

Conventionally, a burr removing device for removing burrs of a resin molded product such as a resin molded package with water sprayed from a gun has been adopted.

In the conventional deburring device, in order to prevent the parts of the resin molded product other than the burrs from being removed by water, the water sprayed from the gun toward the resin molded product below is sprayed by a mask located on the resin molded product. It was configured to partially block. The mask is provided with a tapered portion that is inclined with respect to the traveling direction of water from the gun, and the course of the water reflected by the tapered portion is changed to the side so as not to hit the resin molded product.

Japanese Unexamined Patent Publication No. 6-320424

However, in the conventional deburring device, the straightness and straightness of water are impaired by the diffused reflection of water that hits the tapered portion of the mask.

This has caused problems such as difficulty in properly removing burrs.

Therefore, an object of the present invention is to provide a burr removing device and a burr removing method capable of appropriately removing burrs.

The deburring device according to one aspect of the present invention is
A deburring device for removing burrs from resin molded products.
The injection part that injects the liquid and
A mask, which is arranged between the resin molded product and the injection unit and shields the portion of the resin molded product other than the burr from the liquid ejected by the injection unit, is provided.
The mask comprises a convex portion having a side surface having an upper end and a lower end, and an inclined surface having an upper end connected to the upper end of the side surface, the lower end laterally separated from the lower end of the side surface, and an inclined surface inclined with respect to the side surface. ,
The injection unit is
The side surface of the convex portion is arranged above the burr on the first side surface of the resin molded product along the vertical direction, and the lower end of the inclined surface of the convex portion is opposite to the first side surface. The liquid is sprayed from above in a state of being arranged at an upper position covering the second side surface of the resin molded product to remove burrs on the first side surface.

In the deburring device
The side surface may be a plane parallel to the vertical direction.

In the deburring device
The inclined surface may be an inclined plane having a constant inclination angle with respect to the side surface.

In the deburring device
The inclined surface may be an inclined curved surface curved upward between the upper end and the lower end of the inclined surface.

In the deburring device
The inclined surface may be an inclined curved surface curved downward between the upper end and the lower end of the inclined surface.

In the deburring device
The resin molded product is adjacent to the second resin molded product in the transport direction orthogonal to the vertical direction, and is continuously transported in the transport direction together with the second resin molded product.
The mask is
A second side surface adjacent to the convex portion in the transport direction and having an upper end and a lower end, and an upper end connected to the upper end of the second side surface, and the lower end laterally separated from the lower end of the second side surface, said. It comprises a second ridge having a second sloping surface that is sloping with respect to the second side surface.
The lower end of the second side surface is adjacent to the lower end of the inclined surface of the convex portion in the transport direction.
The lower end of the second inclined surface is adjacent to the lower end of the side surface of the convex portion in the transport direction.
The injection unit is
The second side surface of the second convex portion is arranged above the burr on the second side surface of the second resin molded product along the vertical direction, and the second side surface of the second convex portion. The liquid is poured from above with the lower end of the inclined surface of 2 being arranged at an upper position covering the first side surface of the second resin molded product opposite to the second side surface of the second resin molded product. The burrs on the second side surface of the second resin molded product may be removed by spraying.

In the deburring device
The second side surface may be a plane parallel to the vertical direction.

In the deburring device
The second inclined surface may be an inclined plane having a constant inclination angle with respect to the second side surface.

In the deburring device
The second inclined surface may be an inclined curved surface curved upward between the upper end and the lower end of the second inclined surface.

In the deburring device
The second inclined surface may be an inclined curved surface curved downward between the upper end and the lower end of the second inclined surface.

In the deburring device
The convex portion and the second convex portion may be alternately and repeatedly arranged along the transport direction.

In the deburring device
The mask is
It has one side surface where the upper end is connected to the lower end of the side surface of the convex portion and the lower end is connected to the bottom surface of the mask, and the other end surface is connected to the lower end of the inclined surface of the convex portion and the lower end is connected to the bottom surface. Further bases may be provided.

In the deburring device
The upper end of the one side surface of the base is connected to the lower end of the second inclined surface of the second convex portion, and the upper end of the other side surface of the base portion is the second end of the second convex portion. It may be connected to the lower end of the side surface of.

In the deburring device
The one side surface of the base portion may be flush with the side surface of the convex portion, and the other side surface of the base portion may be flush with the second side surface of the second convex portion.

The deburring method according to one aspect of the present invention is
It is a deburring method for removing burrs from resin molded products.
A mask is placed between the resin molded product and the injection unit for injecting the liquid to shield the portion of the resin molded product other than the burr from the liquid injected by the injection unit.
With the mask placed, the liquid is sprayed from above by the spraying unit.
The mask comprises a convex portion having a side surface having an upper end and a lower end, and an inclined surface having an upper end connected to the upper end of the side surface, the lower end laterally separated from the lower end of the side surface, and an inclined surface inclined with respect to the side surface. ,
The arrangement of the mask is
The side surface of the convex portion is arranged above the burr on the first side surface of the resin molded product along the vertical direction, and the lower end of the inclined surface of the convex portion is opposite to the first side surface. It is placed in an upper position that covers the second side surface of the resin molded product.
The burrs on the first side surface are removed by spraying the liquid.

The burr removing device according to one aspect of the present invention is a burr removing device for removing burrs from a resin molded product, and is arranged between an injection unit for injecting a liquid and between the resin molded product and the injection unit. The mask comprises a mask that shields the part of the resin molded product other than the burr from the liquid sprayed by the injection part, and the mask has a side surface having an upper end and a lower end, and the upper end is connected to the upper end of the side surface, and the lower end is from the lower end to the side of the side surface. It comprises a convex portion having an inclined surface that is inclined away from the side surface and has an inclined surface, and the injection portion is such that the side surface of the convex portion is arranged above the burr on the first side surface of the resin molded product along the vertical direction. In addition, with the lower end of the inclined surface of the convex portion arranged at an upper position covering the second side surface of the resin molded product opposite to the first side surface, a liquid is sprayed from above to remove burrs on the first side surface. do.
According to the present invention, the straightness of the liquid can be ensured by the side surface while suppressing the diffused reflection of the liquid by the inclined surface, so that the straightness of the liquid and the decrease of the straightness power due to the diffused reflection can be suppressed.
As a result, burrs can be appropriately removed.

It is a front view which shows the deburring apparatus which concerns on this embodiment. It is a side view which shows the deburring apparatus which concerns on this embodiment. It is a top view which shows the deburring apparatus which concerns on this embodiment. It is a figure which shows the burr removal method which concerns on this embodiment. It is a front view which shows the mask of the deburring apparatus which concerns on the 1st modification of this embodiment. It is a front view which shows the mask of the deburring apparatus which concerns on the 2nd modification of this embodiment.

Hereinafter, embodiments according to the present invention will be described with reference to the drawings. The embodiments are not limited to the present invention.

FIG. 1 is a front view showing a burr removing device 1 according to the present embodiment. FIG. 2 is a side view showing the burr removing device 1 according to the present embodiment. FIG. 3 is a plan view showing the burr removing device 1 according to the present embodiment.

The burr removing device 1 shown in FIGS. 1 to 3 can be used to remove burrs from the resin molded product 2. In the illustrated example, the resin molded product 2 is a molded package in which a semiconductor element is sealed with a resin.

In the examples of FIGS. 1 and 3, a plurality of resin molded products 2 are connected to each other in the transport direction D1 via the frame 3, so that a row of resin molded products 2 along the transport direction D1 is configured. Further, in the example of FIG. 3, the resin molded product 2 of one example is connected by two rows in the left-right direction D2 orthogonal to the transport direction D1 via the frame 3. In addition, in FIG. 3, only the resin molded product 2 located below the guns 4A to 4D, which will be described later, is typically shown among the two rows of resin molded products 2.

The burr 21 is removed by the burr removing device 1 while the resin molded product 2 is integrally conveyed in the conveying direction D1. That is, the resin molded product 2 is adjacent to the other resin molded product 2 (second resin molded product) in the transport direction D1, and is continuously transported in the transport direction D1 together with the other resin molded product 2.

Further, as shown in FIGS. 1 and 3, the burr 20 is formed so as to project from the right side surface 22 which is an example of the first side surface of the resin molded product 2 to the right D22, or the resin molded product 2 is formed. It is formed so as to project from the left side surface 21 which is an example of the second side surface to the left side D21.

The burr removing device 1 includes a plurality of guns 4A to 4D, which is an example of an injection unit, and a plurality of masks 5A and 5B.

The guns 4A to 4D inject water W, which is an example of a liquid. In the example of FIG. 3, the guns 4A to 4B are arranged at intervals in the transport direction D1 and the left-right direction D2 so that water W can be sequentially jetted to all the burrs 20 according to the transport of the resin molded product 2. Has been done.

Specifically, the first gun 4A, which is the first from the left side in FIG. 3, is in the left column so that water W can be injected to the burr 20 on the left side surface 21 of the resin molded product 2 in the left column. It is arranged above D31 of the transport path on the left side surface 21 of the resin molded product 2. In the example of FIG. 3, the first gun 4A is arranged on the most upstream side (rear side) of the transport direction D1 among the guns 4A to 4C.

Further, the second gun 4B, which is the second gun 4B counted from the left side of FIG. 3, is a resin molded product in the left column so that water W can be injected to the burr 20 on the right side surface 22 of the resin molded product 2 in the left column. It is arranged above D31 of the transport path on the right side surface 22 of 2. The second gun 4B is arranged on the upstream side in the transport direction D1 next to the first gun 4A in each of the guns 4A to 4C.

Further, the third gun 4C, which is the third gun 4C counted from the left side of FIG. 3, is a resin molded product in the right column so that water W can be injected to the burr 20 on the left side surface 21 of the resin molded product 2 in the right column. It is arranged above D31 of the transport path on the left side surface 21 of 2. The third gun 4C is arranged on the upstream side in the transport direction D1 next to the second gun 4B in each of the guns 4A to 4C.

Further, the fourth gun 4D, which is the fourth from the left side in FIG. 3, is a resin molded product in the right column so that water W can be injected to the burr 20 on the right side surface 22 of the resin molded product 2 in the right column. It is arranged above D31 of the transport path on the right side surface 22 of 2. The fourth gun 4D is arranged on the most downstream side (front) of the transport direction D1 among the guns 4A to 4C.

The masks 5A and 5B are arranged between the resin molded product 2 and the guns 4A to 4D.

Specifically, the first mask 5A on the left side in FIG. 3 is arranged between the resin molded product 2 in the left column and the first gun 4A and the second gun 4B.

Further, the second mask 5B on the right side in FIG. 3 is arranged between the resin molded product 2 in the right column and the third gun 4C and the fourth gun 4D.

The masks 5A and 5B shield the portion of the resin molded product 2 other than the burr 20 from the water W sprayed by the guns 4A to 4D.

Specifically, the first mask 5A shields the portion of the resin molded product 2 other than the burr 20 on the left side surface 21 of the resin molded product 2 in the left column from the water W sprayed by the first gun 4A.

Further, the first mask 5A shields the portion of the resin molded product 2 other than the burr 20 on the right side surface 22 of the resin molded product 2 in the left column from the water W sprayed by the second gun 4B.

On the other hand, the second mask 5B shields the portion of the resin molded product 2 other than the burr 20 on the left side surface 21 of the resin molded product 2 in the right column from the water W sprayed by the third gun 4C.

Further, the second mask 5B shields the portion of the resin molded product 2 other than the burr 20 on the right side surface 22 of the resin molded product 2 in the right column from the water W sprayed by the fourth gun 4D.

As shown in FIG. 1, the masks 5A and 5B include a base portion 50, a first convex portion 51, and a second convex portion 52.

The base 50 extends along the transport direction D1. The base 50 has a right side surface 501, which is an example of one side surface, and a left side surface 502, which is an example of the other side surface. Both the right side surface 501 and the left side surface 502 are planes parallel to the vertical direction D3.

The first convex portion 51 is provided on the base portion 50 over a part of the longitudinal direction of the base portion 50. The first convex portion 51 has a first side surface 511 and a first inclined surface 512.

The first side surface 511 has an upper end 511a and a lower end 511b. In the example of FIG. 1, the first side surface 511 is a plane parallel to the vertical direction D3 and is flush with the right side surface 501 of the base 50. The lower end 511b of the first side surface 511 is connected to the upper end 501a of the right side surface 501 of the base 50. The lower end 501b of the right side surface 501 of the base 50 is connected to the bottom surface 503 of the masks 5A and 5B.

The upper end 512a of the first inclined surface 512 is connected to the upper end 511a of the first side surface 511, and the lower end 512b is separated from the lower end 511b of the first side surface 511 to the left side D21 and is inclined with respect to the first side surface 511. In the example of FIG. 1, the first inclined surface 512 is an inclined plane having a constant inclination angle θ1 with respect to the first side surface 511. The lower end 512b of the first inclined surface 512 is connected to the upper end 502a of the left side surface 502 of the base 50. The lower end 502b of the left side surface 502 of the base 50 is connected to the bottom surface 503 of the masks 5A and 5B.

The second convex portion 52 is provided on the base portion 50 so as to be adjacent to the first convex portion 51 in the transport direction D1. More specifically, as shown in FIGS. 2 and 3, the first convex portion 51 and the second convex portion 52 are alternately and repeatedly arranged along the transport direction D1.

As shown in FIG. 1, the second convex portion 52 has a second side surface 521 and a second inclined surface 522.

The second side surface 521 has an upper end 521a and a lower end 521b. In the example of FIG. 1, the second side surface 521 is a plane parallel to the vertical direction D3 and is flush with the left side surface 502 of the base 50. The lower end 521b of the second side surface 521 is connected to the upper end 502a of the left side surface 502 of the base 50.

The upper end 522a of the second inclined surface 522 is connected to the upper end 521a of the second side surface 521, and the lower end 522b is separated from the lower end 521b of the second side surface 521 to the right side D22 and is inclined with respect to the second side surface 521. In the example of FIG. 1, the second inclined surface 522 is an inclined plane having a constant inclination angle θ2 with respect to the second side surface 521. The lower end 522b of the second inclined surface 522 is connected to the upper end 501a of the right side surface 501 of the base 50.

The lower end 521b of the second side surface 521 is adjacent to the lower end 512b of the first inclined surface 512 of the first convex portion 51 in the transport direction D1.

Further, the lower end 522b of the second inclined surface 522 is adjacent to the lower end 511b of the first side surface 511 of the first convex portion 51 in the transport direction D1.

In the guns 4A to 4D, the side surfaces 511 and 521 of the convex portions 51 and 52 are arranged along the vertical direction D3 on the upper D31 of the burrs 20 on the side surfaces 21 and 22 of the resin molded product 2, and the convex portions 51 and 52. Water W is sprayed from the upper D31 in a state where the lower ends 512b and 522b of the inclined surfaces 512 and 522 are arranged at the upper positions covering the other side surfaces 22 and 21 of the resin molded product 2 opposite to the side surfaces 21 and 22. The burrs 20 on the side surfaces 21 and 22 are removed.

Specifically, the first gun 4A is arranged above D31 with respect to the second side surface 521 of the second convex portion 52 of the first mask 5A. In the first gun 4A, the second side surface 521 of the second convex portion 52 of the first mask 5A is arranged along the vertical direction D3 on the upper D31 of the burr 20 on the left side surface 21 of the resin molded product 2 in the left column. In addition, the lower end 522b of the second inclined surface 522 of the second convex portion 52 of the first mask 5A is arranged at an upper position covering the right side surface 22 of the resin molded product 2 in the left column from the upper D31. Water W is sprayed to remove the burr 20 on the left side surface 21 of the resin molded product 2 in the left column.

The second gun 4B is arranged above D31 with respect to the first side surface 511 of the first convex portion 51 of the first mask 5A. In the second gun 4B, the first side surface 511 of the first convex portion 51 of the first mask 5A is arranged along the vertical direction D3 on the upper D31 of the burr 20 on the right side surface 22 of the resin molded product 2 in the left column. In addition, the lower end 512b of the first inclined surface 512 of the first convex portion 51 of the first mask 5A is arranged at an upper position covering the left side surface 21 of the resin molded product 2 in the left column from the upper D31. Water W is sprayed to remove the burr 20 on the right side surface 22 of the resin molded product 2 in the left column.

The third gun 4C is arranged above D31 with respect to the second side surface 521 of the second convex portion 52 of the second mask 5B. In the third gun 4C, the second side surface 521 of the second convex portion 52 of the second mask 5B is arranged along the vertical direction D3 on the upper D31 of the burr 20 on the left side surface 21 of the resin molded product 2 in the right column. In addition, the lower end 522b of the second inclined surface 522 of the second convex portion 52 of the second mask 5B is arranged at an upper position covering the right side surface 22 of the resin molded product 2 in the right column from the upper D31. Water W is sprayed to remove the burr 20 on the left side surface 21 of the resin molded product 2 in the right column.

The fourth gun 4D is arranged above D31 with respect to the first side surface 511 of the first convex portion 51 of the second mask 5B. In the fourth gun 4D, the first side surface 511 of the first convex portion 51 of the second mask 5B is arranged along the vertical direction D3 on the upper D31 of the burr 20 on the right side surface 22 of the resin molded product 2 in the right column. In addition, the lower end 512b of the first inclined surface 512 of the first convex portion 51 of the second mask 5B is arranged at an upper position covering the left side surface 21 of the resin molded product 2 in the right column from the upper D31. Water W is sprayed to remove the burr 20 on the right side surface 22 of the resin molded product 2 in the right column.

In order to ensure impact resistance to water W, it is desirable that the masks 5A and 5B contain a material having high hardness. Preferably, the masks 5A and 5B contain boron as a main component.

Hereinafter, a deburring method to which the deburring device 1 of FIGS. 1 to 3 is applied will be described. FIG. 4 is a diagram showing a deburring method according to the present embodiment.

In the present embodiment, as shown in FIG. 3, water W is injected from the guns 4A to 4D while integrally transporting the resin molded product 2 in the transport direction D1.

In the process of transporting the resin molded product 2, the burr 20 is first removed by the first gun 4A arranged on the most upstream side. Specifically, as shown in FIG. 4, when the burr 20 on the left side surface 21 of the resin molded product 2 in the left column is conveyed to the lower D32 of the first gun 4A, the first gun 4A is conveyed. Water W is jetted from the upper D31 to the burr 20 on the left side surface 21 via the second convex portion 52 of the first mask 5A (step S1).

At this time, while the diffused reflection of the water W is suppressed by the second inclined surface 522 of the second convex portion 52, the straightness of the water W is ensured by the second side surface 521 of the second convex portion 52. Then, in a state where diffuse reflection is suppressed and straightness is ensured, the water W hits the burr 20 on the left side surface 21 of the resin molded product 2 in the left column, and the burr 20 is removed from the left side surface 21 by the impact. In the removal of the burrs 20 on the left side surface 21 of the resin molded product 2 in the left column, the new burrs 20 on the left side surface 21 of the resin molded product 2 in the left column are first removed as the transport of the resin molded product 2 progresses. It is repeated every time it is conveyed to the lower D32 of the gun 4A.

The burr 20 is then removed by a second gun 4B located upstream next to the first gun 4A. Specifically, as shown in FIG. 4, when the burr 20 on the right side surface 22 of the resin molded product 2 in the left column is conveyed to the lower D32 of the second gun 4B, the second gun 4B is conveyed. Water W is jetted from the upper D31 to the burr 20 on the right side surface 22 through the first convex portion 51 of the first mask 5A (step S2).

At this time, while the diffused reflection of the water W is suppressed by the first inclined surface 512 of the first convex portion 51, the straightness of the water W is ensured by the first side surface 511 of the first convex portion 51. Then, in a state where diffused reflection is suppressed and straightness is ensured, the water W hits the burr 20 on the right side surface 22 of the resin molded product 2 in the left column, and the burr 20 is removed from the right side surface 22 by the impact. In such removal of the burr 20 on the right side surface 22 of the resin molded product 2 in the left column, a new burr 20 on the right side surface 22 of the resin molded product 2 in the left column is second as the transport of the resin molded product 2 progresses. It is repeated every time it is conveyed to the lower D32 of the gun 4B.

Next, the burr 20 is removed by the third gun 4C arranged on the upstream side next to the second gun 4B. Specifically, as shown in FIG. 4, when the burr 20 on the left side surface 21 of the resin molded product 2 in the right column is conveyed to the lower D32 of the third gun 4C, the third gun 4C is conveyed. Water W is sprayed from the upper D31 to the burr 20 on the left side surface 21 via the second convex portion 52 of the second mask 5B (step S3).

At this time, while the diffused reflection of the water W is suppressed by the second inclined surface 522 of the second convex portion 52, the straightness of the water W is ensured by the second side surface 521 of the second convex portion 52. Then, in a state where diffuse reflection is suppressed and straightness is ensured, the water W hits the burr 20 on the left side surface 21 of the resin molded product 2 in the right column, and the burr 20 is removed from the left side surface 21 by the impact. In the removal of the burr 20 on the left side surface 21 of the resin molded product 2 in the right column, a new burr 20 on the left side surface 21 of the resin molded product 2 in the right column is third as the transport of the resin molded product 2 progresses. It is repeated every time it is conveyed to the lower D32 of the gun 4C.

The burr 20 is then removed by a fourth gun 4D located most downstream. Specifically, as shown in FIG. 4, when the burr 20 on the right side surface 22 of the resin molded product 2 in the right column is conveyed to the lower D32 of the fourth gun 4D, the fourth gun 4D is conveyed. Water W is jetted from the upper D31 to the burr 20 on the right side surface 22 through the first convex portion 51 of the second mask 5B (step S4).

At this time, while the diffused reflection of the water W is suppressed by the first inclined surface 512 of the first convex portion 51, the straightness of the water W is ensured by the first side surface 511 of the first convex portion 51. Then, in a state where diffuse reflection is suppressed and straightness is ensured, the water W hits the burr 20 on the right side surface 22 of the resin molded product 2 in the right column, and the burr 20 is removed from the right side surface 22 by the impact. In such removal of the burr 20 on the right side surface 22 of the resin molded product 2 in the right column, a new burr 20 on the right side surface 22 of the resin molded product 2 in the right column is fourth as the transport of the resin molded product 2 progresses. It is repeated every time it is transported to the lower D32 of the gun 4D.

Hereinafter, the action brought about by this embodiment will be described.

As described above, the burr removing device 1 according to the present embodiment is a burr removing device for removing the burr 20 of the resin molded product 2, and includes the gun 4 for injecting water W and the resin molded product 2. It is provided with masks 5A and 5B which are arranged between the gun 4 and shield the portion of the resin molded product 2 other than the burr 20 from the water W ejected by the gun 4. In the masks 5A and 5B, the first side surface 511 having the upper end 511a and the lower end 511b, the upper end 512a is connected to the upper end 511a of the first side surface 511, and the lower end 512b is separated from the lower end 511b of the first side surface 511 to the left side D21. A first convex portion 51 having a first inclined surface 512 inclined with respect to one side surface 511 is provided. In the gun 4, the first side surface 511 of the first convex portion 51 is arranged along the vertical direction D3 on the upper D31 of the burr 20 on the right side surface 22 of the resin molded product 2, and the inclined surface of the first convex portion 51. In a state where the lower end 512b of 512 is arranged at an upper position covering the left side surface 21 of the resin molded product 2 opposite to the right side surface 22, water W is jetted from the upper D31 to remove the burr 20 on the right side surface 22.

According to such a configuration, the first side surface 511 allows the water W to travel in the injection direction of the gun 4, and the first inclined surface 512 allows the water W to travel along the first side surface 511. The water W can be advanced so as to escape diagonally downward. As a result, the straightness of the water W can be ensured by the first side surface 511 while suppressing the diffused reflection of the water W by the first inclined surface 512, so that the straightness of the water W and the decrease in the straightness power due to the diffused reflection can be suppressed. Can be done. Thereby, the burr 20 can be appropriately removed.

Further, as described above, the first side surface 511 of the first convex portion 51 is a plane parallel to the vertical direction D3.

According to such a configuration, the straightness of the water W can be more effectively ensured, so that the burr 20 can be removed more appropriately.

Further, as described above, the first inclined surface 512 of the first convex portion 51 is an inclined plane having a constant inclination angle θ1 with respect to the first side surface 511.

According to such a configuration, diffused reflection of water W can be suppressed by a simple configuration.

Further, as described above, the resin molded product 2 is adjacent to the other resin molded product 2 (second resin molded product) in the transport direction D1 orthogonal to the vertical direction D3, and is transported together with the other resin molded product 2. It is continuously conveyed in the direction D1. The masks 5A and 5B have a second side surface 521 adjacent to the first convex portion 51 in the transport direction D1 and having an upper end 521a and a lower end 521b, an upper end 522a connected to the upper end 521a of the second side surface 521, and a lower end 522b being the second. A second convex portion 52 having a second inclined surface 522 separated from the lower end 521b of the side surface 521 toward the right side D22 and inclined with respect to the second side surface 521 is provided. The lower end 521b of the second side surface 521 is adjacent to the lower end 512b of the first inclined surface 512 of the first convex portion 51 in the transport direction D1, and the lower end 522b of the second inclined surface 522 is the first convex portion 51 in the transport direction D1. Adjacent to the lower end 511b of the first side surface 511 of. In the gun 4, the second side surface 521 of the second convex portion 52 is arranged above the burr 20 on the left side surface 21 of the other resin molded product 2 along the vertical direction D3, and the second convex portion 52 is the second. 2 Water W is injected from the upper D31 in a state where the lower end 522b of the inclined surface 522 is arranged at an upper position covering the right side surface 22 of the other resin molded product 2 opposite to the left side surface 21 of the other resin molded product 2. Then, the burrs on the left side surface 21 of the other resin molded product 2 are removed.

According to such a configuration, the straightness of the water W can be ensured by the second side surface 521 while suppressing the diffused reflection of the water W by the second inclined surface 522. The decrease can be suppressed. Thereby, the burrs 20 on the left and right side surfaces of the resin molded product 2 can be appropriately removed by the first convex portion 51 and the second convex portion 52.

Further, as described above, the second side surface 521 of the second convex portion 52 is a plane parallel to the vertical direction D3.

According to such a configuration, the straightness of the water W can be more effectively ensured, so that the burr 20 can be removed more appropriately.

Further, as described above, the second inclined surface 522 of the second convex portion 52 is an inclined plane having a constant inclination angle θ2 with respect to the second side surface 521.

According to such a configuration, diffused reflection of water W can be suppressed by a simple configuration.

Further, as described above, the first convex portion 51 and the second convex portion 52 are alternately and repeatedly arranged along the transport direction D1.

According to such a configuration, for example, when one set of the convex portions 51 and 52 in use becomes unusable due to wear, the other set of unused masks 5A and 5B can be simply changed in direction. Since it can be replaced with the convex portions 51 and 52 of the above, the handleability can be improved.

Further, as described above, in the masks 5A and 5B, the upper end 501a is connected to the lower end 511b of the first side surface 511 of the first convex portion 51, and the lower end 501b is connected to the bottom surface 501 of the masks 5A and 5B. Further comprising a base 50 having an upper end 502a connected to the lower end 512b of the first inclined surface 512 of the first convex portion 51 and a lower end 502b having a left side surface 502 connected to the bottom surface 503 of the masks 5A and 5B.

According to such a configuration, since the first convex portion 51 can be provided on the base portion 50, the strength of the masks 5A and 5B can be increased.

Further, as described above, the upper end 501a of the right side surface 501 of the base 50 is connected to the lower end 522b of the second inclined surface 522 of the second convex portion 52, and the upper end 502a of the left side surface 502 of the base 50 is the second convex portion. It is connected to the lower end 521b of the second side surface 521 of 52.

According to such a configuration, since the second convex portion 52 can be provided on the base portion 50, the strength of the masks 5A and 5B can be further increased.

Further, as described above, the right side surface 501 of the base portion 50 is flush with the first side surface 511 of the first convex portion 51, and the left side surface 502 of the base portion 50 is the second side surface 521 of the second convex portion 52. Is flush with each other.

According to such a configuration, the base portion 50 can be prevented from obstructing the straightness of the water W secured by the side surfaces 511 and 521 of the convex portions 51 and 52.

(Modification example)
In addition to the above configuration, the following modifications can be applied to the present embodiment. FIG. 5 is a front view showing the mask 5 of the burr removing device 1 according to the first modification of the present embodiment.
FIG. 6 is a front view showing the mask 5 of the burr removing device 1 according to the second modification of the present embodiment.

So far, an example of the deburring device 1 in which the inclined surfaces 512 and 522 of the convex portions 51 and 52 are inclined planes has been described.

On the other hand, as shown in FIG. 5, the first inclined surface 512 may be an inclined curved surface curved upward D31 between the upper end 512a and the lower end 512b of the first inclined surface 512. Further, although not shown, the second inclined surface 522 may also be an inclined curved surface curved upward D31 between the upper end 522a and the lower end 522b of the second inclined surface 522.

According to such a configuration, the width of the upper end portions of the convex portions 51 and 52 in the left-right direction D2 can be made relatively large, so that the period until the convex portions 51 and 52 are worn and cannot be used is relatively long. Can be lengthened.

Alternatively, as shown in FIG. 6, the first inclined surface 512 may be an inclined curved surface curved downward D32 between the upper end 512a and the lower end 512b of the first inclined surface 512. Further, although not shown, the second inclined surface 522 may also be an inclined curved surface curved downward D32 between the upper end 522a and the lower end 522b of the second inclined surface 522.

According to such a configuration, the upper ends of the convex portions 51 and 52 can be made sharper, so that diffused reflection can be suppressed more effectively.

The above-described embodiment is merely an example and does not limit the scope of the invention. Various modifications can be made to the above-described embodiments without departing from the gist of the invention. The modified embodiment is included in the invention described in the claims and the equivalent scope thereof.

1 Deburring device 2 Resin molded product 20 Burr 21 Left side surface 22 Right side surface 4A to 4D Gun 5A, 5B Mask 51 First convex part 511 First side surface 511a Upper end 511b Lower end 512 First inclined surface 512a Upper end 512b Lower end

Claims (15)

A deburring device for removing burrs from resin molded products.
The injection part that injects the liquid and
A mask arranged between the resin molded product having a first side surface and a second side surface opposite to the first side surface and the injection unit, and shielding the resin molded product from the liquid ejected by the injection unit. Equipped with
The mask is
A convex portion having a side surface having an upper end and a lower end, an inclined surface having an upper end connected to the upper end of the side surface, a lower end laterally separated from the lower end of the side surface, and an inclined surface inclined with respect to the side surface.
A second side surface adjacent to the convex portion and having an upper end and a lower end in a transport direction orthogonal to the vertical direction, and an upper end connected to the upper end of the second side surface, and a lower end laterally from the lower end of the second side surface. A second inclined surface having a second inclined surface, which is separated from the second side surface, and has a second convex portion.
The lower end of the second side surface is adjacent to the lower end of the inclined surface of the convex portion in the transport direction.
The lower end of the second inclined surface is adjacent to the lower end of the side surface of the convex portion in the transport direction.
The injection unit is
The side surface of the convex portion is arranged above the first side surface of the resin molded product along the vertical direction, and the lower end of the inclined surface of the convex portion is the second side of the resin molded product. The state of being arranged above the side surface and the second side surface of the second convex portion are arranged above the second side surface of the resin molded product along the vertical direction, and the second side surface is arranged. A deburring apparatus characterized by injecting the liquid from above in a state where the lower end of the second inclined surface of the convex portion 2 is arranged at an upper position of the first side surface of the resin molded product. .. The deburring device according to claim 1, wherein the side surface is a plane parallel to the vertical direction. The deburring device according to claim 1, wherein the inclined surface is an inclined plane having a constant inclination angle with respect to the side surface. The deburring device according to claim 1, wherein the inclined surface is an inclined curved surface that is curved upward between the upper end and the lower end of the inclined surface. The deburring device according to claim 1, wherein the inclined surface is an inclined curved surface that is curved downward between the upper end and the lower end of the inclined surface. The resin molded product is adjacent to a second resin molded product having a first side surface and a second side surface opposite to the first side surface in the transport direction, and is continuous with the second resin molded product in the transport direction. Transported to
The injection unit is
The second side surface of the second convex portion is arranged above the second side surface of the second resin molded product along the vertical direction, and the second side surface of the second convex portion is arranged. The deburring according to claim 1, wherein the liquid is jetted from above with the lower end of the inclined surface of the second resin molded product arranged at an upper position covering the first side surface of the second resin molded product. Device. The deburring device according to claim 6, wherein the second side surface is a plane parallel to the vertical direction. The deburring device according to claim 6, wherein the second inclined surface is an inclined plane having a constant inclination angle with respect to the second side surface. The deburring device according to claim 6, wherein the second inclined surface is an inclined curved surface that is curved upward between the upper end and the lower end of the second inclined surface. The deburring device according to claim 6, wherein the second inclined surface is an inclined curved surface that is curved downward between the upper end and the lower end of the second inclined surface. The deburring device according to claim 6, wherein the convex portion and the second convex portion are alternately and repeatedly arranged along a transport direction. The mask is
It has one side surface where the upper end is connected to the lower end of the side surface of the convex portion and the lower end is connected to the bottom surface of the mask, and the other end surface is connected to the lower end of the inclined surface of the convex portion and the lower end is connected to the bottom surface. The deburring apparatus according to claim 6, further comprising a base. The upper end of the one side surface of the base is connected to the lower end of the second inclined surface of the second convex portion, and the upper end of the other side surface of the base portion is the second end of the second convex portion. 12. The deburring device according to claim 12, wherein the deburring device is connected to the lower end of the side surface of the surface. The one side surface of the base portion is flush with the side surface of the convex portion, and the other side surface of the base portion is flush with the second side surface of the second convex portion. 13. The deburring device according to claim 13. It is a deburring method for removing burrs from resin molded products.
A mask that shields the resin molded product from the liquid sprayed by the injection unit is provided between the resin molded product having the first side surface and the second side surface opposite to the first side surface and the injection unit that injects the liquid. Place and
With the mask placed, the liquid is sprayed from above by the spraying unit.
The mask is
A convex portion having a side surface having an upper end and a lower end, an inclined surface having an upper end connected to the upper end of the side surface, a lower end laterally separated from the lower end of the side surface, and an inclined surface inclined with respect to the side surface.
A second side surface adjacent to the convex portion in a transport direction orthogonal to the vertical direction and having an upper end and a lower end, and an upper end connected to the upper end of the second side surface, and a lower end laterally from the lower end of the second side surface. A second inclined surface having a second inclined surface, which is separated from the second side surface, and has a second convex portion.
The lower end of the second side surface is adjacent to the lower end of the inclined surface of the convex portion in the transport direction.
The lower end of the second inclined surface is adjacent to the lower end of the side surface of the convex portion in the transport direction.
In the state where the mask is arranged, the side surface of the convex portion is arranged above the first side surface of the resin molded product along the vertical direction, and the lower end of the inclined surface of the convex portion is arranged. The state of being arranged at an upper position covering the second side surface of the resin molded product and the second side surface of the second convex portion are above the second side surface of the resin molded product along the vertical direction. A method for removing burrs , which comprises a state in which the lower end of the second inclined surface of the second convex portion is arranged at an upper position of the first side surface of the resin molded product. ..

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