JPH11179737A - Apparatus for cleaning surface of mold - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mold surface cleaning apparatus capable of peeling the adhering matters on the surfaces of upper and lower molds efficiently and capable of preventing the mixing with the adhering matters as foreign matters at a time of molding. SOLUTION: In a mold surface cleaning apparatus 21, two upper and lower rotary brushes 23, 23 are provided to a cleaning nozzle 22 so as to be capable of brushing the surfaces of upper and lower molds 41, 42 and a rotary means 25A is provided to the end parts of the rotary brushes 23, 23 so as to be capable of cooperating with the brushes through a drive motor 25 and the suction holes 27, 28 communicating with a dust collector through a suction duct 29 are provided before and behind the rotary brushes 23, 23.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning device for a mold surface which removes deposits adhered to a mold surface by operating a cleaning nozzle having a rotating brush.

[0002]

2. Description of the Related Art Conventionally, as this kind, there is, for example, the one shown in FIG. 3 described in Japanese Patent Publication No. 57-30363. This is a pair of upper and lower head frames 3, 3
The flat brush main body 5 is housed in a brush case 4 having a mold surface provided at the tip of the upper and lower molds, and the tip of the brush material 6 protrudes toward the molds A and B to apply vibration to the upper and lower molds. Cleaning device 1 for cleaning mold surfaces A and B
It is.

The flat brush body 5 has a brush member 6 provided on the surface of a substrate 8 provided with a large number of fine air blowing ports 7 and a support plate 10 provided with a suction port 9 at the back of the substrate 8. The flat brush main body 5 is provided with a support pin 11 protruding from the back and side portions and a spring 12 in the case 4 by pressing and biasing.

The burr cooling air supply passage is formed by an air hose connected to an air compressor, a plurality of air pipes 13 branched from the air hose, an air flow passage 14 formed in the head frame 3, and a connection pipe 15. Then, the supply air is discharged from a large number of thin blowing ports 7 of the substrate 8 through the suction ports 9 of the support plate 10 of the flat brush body 5.

[0005] Further, the vacuum flow path for discharging the peeling burrs is formed in communication with a plurality of vacuum pipes 16 connected to a vacuum (not shown) and branched from a vacuum hose and an air flow path 17 formed in the head frame 3. Then, the separated burrs are sucked and discharged to the vacuum side together with the outside air.

The operation of the cleaning device 1 having such a configuration causes the flat brush main body 5 to vibrate vertically and horizontally with respect to the dies A and B surfaces. Then, the mold A,
The burrs on the surface B are beaten, and the burrs are rubbed by horizontal vibration so that the burrs are separated from the molds A and B.

Further, a means for blowing air for cooling the burr from the brush portion to the burr surface is employed to improve the effect of burr peeling.

[0008]

However, in such a conventional apparatus, as shown in FIG. 3, only one of the upper and lower molds A and B can be cleaned. Since the cleaning of the mold B is performed after the completion of the mold A, there is a problem that the number of working steps is required.

Further, since the supply air is discharged from a large number of thin blowing ports 7 of the substrate 8, the supply air discharged to the surfaces of the molds A and B scatters burrs and the like, and is mixed as foreign matter to form a defective molded product. There was a fear that it would be.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a mold surface cleaning apparatus capable of efficiently removing adhering substances on upper and lower mold surfaces and preventing the adhering substances from being mixed as foreign matter during molding.

[0011]

In order to achieve the above object, the invention described in claim 1 is to brush and adhere to a pair of upper and lower mold surfaces of a sealing resin molding die. A cleaning device for a mold surface provided with a cleaning nozzle for eliminating, wherein the cleaning nozzle is provided with two upper and lower rotating brushes so that upper and lower mold surfaces can be brushed, and a driving motor is provided on a side surface of the cleaning nozzle. A rotating means is provided so that the rotating brush can be rotated through, and suction holes communicating with the dust collector via a suction duct are provided at upper and lower surfaces of the cleaning nozzle or positions before and after the rotating brush on the upper and lower surfaces and the left and right surfaces. It is characterized by having been provided.

With the above-described structure, the deposits can be peeled off from the upper and lower mold surfaces by the rotating brush which moves forward and backward at the same time.

[0013] Further, since the exfoliated matter is provided with suction holes on the upper, lower, left and right surfaces so as to sandwich the front and rear of the rotating brush, it is sucked by one of the front and rear suction holes.

According to a second aspect of the present invention, in the cleaning device for a mold surface according to the first aspect, the rotating means is provided with a gear at an end of a rotating shaft of each of the rotating brushes, and the gears are respectively provided. An intermediate gear is formed integrally with the pulley so as to mesh with the pulley, and the pulley and the motor pulley provided on the drive motor are connected via a belt, so that each of the rotating brushes can rotate with the rotation of the drive motor. It is characterized by having.

With the above configuration, the upper and lower rotating brushes can be rotated simultaneously by operating the drive motor, and the upper and lower mold surfaces can be brushed simultaneously.

According to a third aspect of the present invention, there is provided a cleaning apparatus for a mold surface having a cleaning nozzle for brushing and removing suction from a pair of upper and lower mold surfaces of a sealing resin molding die. An enclosure is provided so as to surround at least the three surfaces of the front and left and right surfaces between the mold surfaces of the upper and lower molds. Along with the connection via the connecting portion provided, with the advancement movement of the cleaning nozzle, the enclosure is pushed into a predetermined position between the upper and lower molds via the connection portion, and the inside of the enclosure is inserted into the elongated hole. The cleaning nozzle moves along with the upper and lower mold surfaces to brush and eliminate the suction, and then, with the retreat movement of the cleaning nozzle, the enclosure retreats through the connecting portion. It is set to.

With the above configuration, the upper and lower molds are enclosed in at least three directions, and the cleaning nozzle enters and exits from the opening side, so that dust is scattered from inside the enclosure or dust is brought in from the outside of the enclosure. It is possible to prevent suction adhesion to the mold surface.

Further, since the enclosure and the cleaning nozzle are movably connected to each other, the enclosure can be simultaneously moved back and forth into the mold surface only by moving the cleaning nozzle back and forth.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION

[0020]

Embodiment 1 FIG. 1 is an explanatory view of a mold surface cleaning apparatus according to Embodiment 1 of the present invention.

In FIG. 1, reference numeral 21 denotes a mold surface cleaning device, 22 denotes a cleaning nozzle, 23 denotes a pair of upper and lower rotating brushes, 24 denotes an intermediate gear meshing with the rotating brushes 23, 23, and 24A denotes an intermediate gear 24. The pulley 24A is connected to a motor pulley 25a provided on a shaft of a driving motor 25 via a belt 26 to form a rotating means 25A.

Therefore, when the drive motor 25 of the rotating means 25A is operated, its rotation is
a to the intermediate gear 24 via the belt 26, and to the gear provided on the rotating shaft of the vertically rotating brushes 23, 23 by the intermediate gear 24.

An upper suction hole 27 is provided before and after the rotating brushes 23, 23 above and below the cleaning nozzle 22, respectively.
And a lower suction hole 28 are provided. Both the upper and lower suction holes 27 and 28 are connected to a flexible suction duct 29 provided behind the cleaning nozzle 22. Further, the suction duct 29 is connected to a dust collector (not shown).

The operation of the mold surface cleaning device 21 configured as described above will be described.

In FIG. 1, the upper and lower molds 41 and 42 from which the molded article has been removed are located within the upper and lower molds 40 where the rotating brushes 23 and 23 are opened at intervals so that they can abut with an appropriate pressure. , The drive motor 25 and the dust collector are operated to rotate the upper and lower rotating brushes 23, 23 while moving forward and backward to simultaneously brush the surface of the mold 40 up and down. In addition, a motor circuit for rotating the drive motor 25 in the normal and reverse directions is incorporated as necessary, and the rotating brush can also be rotated in the normal and reverse directions.

As described above, the upper and lower molds 41 and 42 are simultaneously brushed, and the deposits on the mold 40 are peeled off and wound up by the rotation of the rotating brushes 23 and 23. At this time, suction holes 27, 28 before and after each of the rotating brushes 23, 23.
The adhering material is removed from the suction holes 27 and 28 toward the dust collector without being scattered.

[0027]

Second Embodiment FIG. 2 shows a second embodiment of the mold surface cleaning apparatus of the present invention, and FIG. 2 is an explanatory view of the mold surface cleaning apparatus.

The same or equivalent parts as those of the first embodiment are denoted by the same reference numerals and the description is omitted. In FIG.
Reference numeral 30 denotes an enclosure, and an enclosure main body 31 of the enclosure 30 forms an enclosure main body 31 having three front and left surfaces 31a, 31b, and 31c of upper and lower molds 41 and 42 (see FIG. 1). Let me. The left and right two surfaces 31b, 31 of the three surfaces
A long hole 32 extending symmetrically in the front-rear direction is provided in two stages c, and a long hole cover 33 (for example, a rubber plate) having elasticity and high resilience so as to cover the long hole 32 is provided. Is provided. A cutting line 33a having a gap is provided substantially at the center of the width of the long hole cover 33. Also, three surfaces 31a, 31
b, 31c have upper and lower molds 4
A seal portion 34 for sweeping and abutting and sealing the surfaces 1 and 42 is provided.

Then, suction holes 27 are formed on both the left and right sides of the enclosure 30 and the cleaning nozzle 22A according to the first embodiment.
A and a cleaning nozzle 22A to which 28A is added are connected via a connecting portion 35.

The connecting portion 35 has a T-shaped connecting member 36 in which two upper and lower long holes provided on both side surfaces of the enclosure main body 31 are provided with left and right flanges 36 a so as to sandwich the long hole cover 33. Is attached to the front surface of the cleaning nozzle 22A,
A retaining member 37 is fixed to the opening end face of the long hole 32 of the surrounding body 31 in order to hook the connecting body 36 inserted toward the disconnection line 33 a provided in the long hole cover 33.

Therefore, the cleaning nozzle 22A can move forward and backward by separating the disconnection line of the long hole cover 33a without coming off the enclosure main body 31.
When the connecting body 36 pushes and spreads the opening 36a, the brim 36a closes to prevent a part of the enclosure main body 31 from being extremely opened, and at the same time, the connecting body 36 comes out of the long hole 32 in the left-right direction. Has been prevented.

The height relationship between the enclosure 30 and the rotating brush 23 is such that the rotating brushes 23,
In a state in which the seal portion 34 is in contact with the surface, the seal portion 34 of the enclosure 30 is pressed by the upper and lower molds 41 and 42 so as to have a relationship height at which the seal portion 34 can be slightly deformed and sealed.

The operation of the mold surface cleaning device 21 configured as described above will be described.

Since the cleaning nozzle 22A and the enclosure 30 are integrally connected by the connecting portion 35, when the cleaning nozzle 22A is pushed into the space between the upper and lower molds 41, 42, the enclosure 30 is pushed. Inserted mold 4
0 and is fixed by being brought into contact with a stopper 42a (see FIG. 1) provided at the first position.

Subsequently, each long hole of the cleaning nozzle 22A is pushed forward so that the connecting portion 35 slides. At this time, the rotating brushes 23, 23 are rotated and suction is performed from the suction holes 27, 28, 27A, 28A, so that the adhered matter of the mold 40 is peeled off and removed by suction toward the dust collector.

At this time, since the enclosure 30 is sealed with the surface of the mold 40 and the seal portion 34, the air flow from the outside into the enclosure 30 is sucked in from the slit-shaped disconnection line 33a and brushed. The wound-up deposits are removed by suction on this constant air flow.

The suction holes 27A and 28A provided on the left and right sides of the cleaning nozzle 22A are provided in the enclosure main body 3.
The adhering matter and the like adhering to the inner surface of the enclosure 1 are sucked, and the inner surface of the enclosure main body 31 is kept clean.

Other structures and operations are the same as those of the first embodiment, and the description thereof is omitted.

[0039]

As described above, according to the first and second aspects of the present invention, since the rotating brush is provided toward the upper and lower mold surfaces, the adhered matter adhered to the mold surface can be reduced. The upper and lower dies can be brushed at the same time, and work efficiency is good.

Further, since the suction holes are provided before and after the rotating brush, suction can be performed regardless of whether the rotating brush rotates in the forward or reverse direction, and the attached matter can be prevented from scattering.

According to the third aspect of the present invention, since the enclosure is provided between the upper and lower mold surfaces, scattering of the adhesion of the mold surfaces and the introduction of dust from the outside are blocked. Therefore, mixing as a foreign substance at the time of molding can be avoided, and the defect rate can be reduced.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a mold surface cleaning device according to a first embodiment of the present invention.

FIG. 2 is an explanatory view showing a mold surface cleaning device according to the second embodiment.

FIG. 3 is a cross-sectional view showing a mold surface cleaning device according to a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 21 ... Mold surface cleaning device 22 ... Cleaning nozzle 23 ... Rotary brush 25A ... Rotating means 25 ... Drive motor 27, 28 ... Suction hole 29 ... Suction duct 41, 42 ... Upper die, lower die

Claims (3)

[Claims] 1. A cleaning device for a mold surface, comprising a cleaning nozzle for brushing and removing suction from a pair of upper and lower mold surfaces of a molding resin molding die, wherein the cleaning nozzle is Is provided with two upper and lower rotating brushes so that the upper and lower mold surfaces can be brushed, and a rotating means provided on a side surface portion of the cleaning nozzle so that the rotating brush can be rotated via a driving motor; A cleaning device for a mold surface, wherein suction holes communicating with a dust collector via a suction duct are provided at upper and lower surfaces or positions before and after the rotating brush on the upper and lower surfaces and the left and right surfaces. 2. The rotating means is provided with a gear at an end of a rotating shaft of each of the rotating brushes, and an intermediate gear is integrally formed with a pulley so as to mesh with each of the gears. 2. The mold surface cleaning device according to claim 1, wherein a motor pulley provided on the motor is connected via a belt, and each of the rotating brushes is rotatable with the rotation of the driving motor. 3. A cleaning device for a mold surface, comprising a cleaning nozzle for brushing and removing suction from a pair of upper and lower mold surfaces of a molding resin molding die, wherein the upper and lower molds are provided. Is provided so as to surround at least three surfaces of the front surface and the left and right surfaces between the mold surfaces, and is connected to a long hole provided in the front-rear direction of the left and right side surfaces of the housing via a connection portion provided on the front surface of the cleaning nozzle. With the forward movement of the cleaning nozzle, the enclosure is pushed into a predetermined position between the upper and lower molds via a connecting portion,
The cleaning nozzle moves along the inside of the enclosure along the elongated hole, brushes the upper and lower mold surfaces to eliminate suction, and then, with the retreat movement of the cleaning nozzle, the enclosure retreats through the connecting portion. A cleaning device for a mold surface.