JPH0352682A - Mold washing device - Google Patents

Abstract

PURPOSE:To efficiently remove the fats and oils, stains, dust, etc., sticking to molds by providing a washing booth, a lower traveling truck and a nozzle unit. CONSTITUTION:The press mold 151 is imposed on mold stages 7, 8 and is subjected to pretreatments, such as degreasing and light oil coating. Wheels 5 of the washing booth 3 are then driven to move the washing booth 3 and to position the press mold 151 in the washing booth 3; thereafter, a shutter 6 is closed. The washing pattern meeting the shape of the press mold 151 is selected by operating the pattern selecting switch of an operation board 68. A start button of the operation board 68 is then turned on to inject hot water as washing liquid from an upper nozzle head 25 and a lower nozzle head 34. The washing of the press mold 151 is executed in this way and the rapid washing with a high degree of washing is possible.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a cleaning device for cleaning press molds and resin molds, and more specifically, to a cleaning device for cleaning press molds and resin molds. This invention relates to a mold cleaning device.

2. Description of the Related Art Conventionally, as shown in FIGS. 8(A) and 8(B), a mold cleaning device used for cleaning a press mold, for example, has a cleaning liquid supply pipe 103 equipped with a large number of cleaning nozzles 102 installed inside the mold cleaning device. A cleaning booth 104 arranged on the foundation 105 is fixedly installed,
There is a structure in which a trolley 107 is placed on a rail 106 that is laid through the inside and outside of the cleaning bath 104.

In this mold cleaning device 101, the trolley 107 is shown in FIG. 8(A).
When the crane is stopped at the left position, hook 10 of the crane is
Press mold 11 lifted by wire 109 by 8
0 is placed on the trolley 107, and then the wire 109 is removed, the trolley 107 is moved together with the press die 110 to the right in FIG. The supply of cleaning liquid from the pipe 103 is started, and the cleaning liquid is applied to the press mold 1 from each cleaning nozzle 102.
10, and then move the cart 107 together with the press die 110 further to the right in FIG. Furthermore, press mold 1 with cleaning liquid.
10, the dirty parts of the press mold 110 that could not be completely cleaned in the cleaning booth 104 are manually cleaned, and if necessary, air blowing is also performed manually.

FIGS. 9(A) and 9(B) show other examples of conventional mold cleaning equipment, and this mold cleaning equipment 121 has a cleaning booth 122.
As shown in FIG. 9(B), screw shafts 123 and 124 are rotatably disposed at the upper and lower parts of one end side of the interior, that is, the left end side in FIG. 9(A), respectively. The nozzle base 125 is screwed together with the nozzle base 125, and the screw shafts 123 and 124 are rotationally driven by the operation of the chain 126 and the drive motor 127 outside the cleaning pool 122, so that the nozzle base 125 is rotated as shown in FIG. 9(B). It is movable in the left and right direction,
Subrockets 128 and 129 are arranged at the upper and lower ends of the nozzle base 125, respectively, and a chain 130 is stretched between the two subrockets 128 and 129. This chain 130 has a nozzle block 132 equipped with a cleaning liquid nozzle 131. The cleaning liquid nozzle 1 is fixed by rotating the subrocket 128 on the upper end side with the motor 133.
31 is made vertically movable, and a mold support 1 is provided at the other end of the cleaning booth 122, that is, at the bottom of the right end side in FIG. 9(A).
34 and attach the bottom surface of one of its lower ends to the pivot base 135.
and is pivoted by a pivot shaft 136, and the lower surface of the other end is connected to the tip of the rod 137a of the pressure cylinder l37 and the pivot shaft 1.
The structure is connected through 38.

In this mold cleaning device 121, the press mold 140 is placed on the upper surface of the mold support stand 134 by a crane or the like, and then the pressure cylinder 137 is operated to push out the press mold 140 as shown by the imaginary line in FIG. 9(A). is located inside the cleaning booth 122, and the motor 1 is injected from the cleaning liquid nozzle 131 through the cleaning liquid supply pipe 141.
The press die 140 is cleaned by driving the motor 133 to move the cleaning liquid nozzle 131 in the horizontal direction and by driving the motor 133 to move the cleaning liquid nozzle 131 in the vertical direction.

Problems to be Solved by the Invention However, such a conventional mold cleaning device 101,1
In No. 21, since the cleaning liquid is only sprayed from a certain direction in a substantially constant pattern to each press mold 110, 140 to be cleaned, the press molds 110, 140 may not be cleaned well. Type 110.140
If the dirt is not completely removed, when the press molds 110, 140 are combined with the mating mold, the dirty water containing the dirt will fall onto the mold surface, causing impressions called star marks during pressing. Become. Furthermore, since the cleaning liquid is sprayed in a constant pattern regardless of the shape of the press dies 110, 140, the degree of cleaning may vary depending on the shape of the press dies 110, 140, and furthermore, it takes time to clean. It has problems such as taking too much time.

In particular, as shown in Fig. 10, in a press die 151 for the purpose of shearing such as trimming, the height difference of the die surface is large and the shape is complex, so the near-horizontal plane part is relatively well-performed. Although cleaning can be performed, the nearly vertical side wall surfaces 152, 153, etc. cannot be sufficiently cleaned, and a considerable amount of cleaning remains. As a result, the burden of manual work on the worker increases, and the actual situation is that the intended purpose cannot always be achieved.

In addition, 154 in FIG. 10 is a cutting blade for shearing, 155 is a guide post, and 156 is a scrap cutter.

The present invention has been made by focusing on the above-mentioned conventional problems, and by spraying a cleaning liquid from different directions onto a mold such as a press mold or a resin mold, the present invention can be applied to, for example, a press mold for trimming. Even if the mold surface structure is complex, such as, it is possible to clean the mold well.
By spraying cleaning liquid in a pattern that corresponds to the shape of the mold, we provide a mold cleaning device that can clean molds of different shapes in a short time with high cleaning efficiency without being affected by the shape of the mold. The purpose is to

Means for Solving the Problems A mold cleaning device according to the present invention sprays cleaning liquid from nozzle heads disposed above and below a mold to be cleaned, and cleans the top and bottom of the mold based on a predetermined cleaning pattern. A cleaning device that performs cleaning while moving a nozzle head, and a cleaning booth provided at a position surrounding a mold to be cleaned;
An upper traveling trolley and a lower traveling trolley are disposed above and below inside the cleaning booth with the mold in between, and run in two orthogonal directions, the X direction and the Y direction, within a horizontal plane, and an upper traveling trolley that is supported by the upper traveling trolley and moves in the upper and lower directions. The nozzle unit is driven up and down by a lifting drive means provided on the truck, and has a nozzle unit with an upper nozzle head at the lower end of which the injection port is directed toward the mold, and a nozzle unit provided on the lower traveling truck and has an injection port that is directed toward the mold. The present invention includes a lower nozzle head which is rotationally driven by a lower rotation drive means provided on the lower carriage with the injection port facing the mold.

Furthermore, the above-mentioned nozzle unit includes an upper rotational drive means for rotationally driving the upper nozzle head with the injection port of the upper nozzle head directed toward the mold, and a horizontal oscillation center axis in conjunction with the rotational movement of the upper nozzle head. an oscillating drive means for oscillatingly displacing the upper nozzle head about the oscillation center; and a tilt adjustment drive means for adjusting the inclination of the upper nozzle head about a horizontal tilt center axis that is 90 degrees out of phase with the oscillation center axis. It has a structure with

Function: According to this structure, the upper nozzle head itself moves in a complicated manner while the injection port points toward the mold due to the movement of the upper traveling truck and the lower traveling truck within a two-dimensional plane and the cooperation with each drive means. Therefore, each surface of the mold to be cleaned can be evenly cleaned regardless of whether it is a nearly horizontal surface or a nearly vertical surface.

Embodiment FIG. 1 is an explanatory diagram of the overall structure of an embodiment of the cleaning apparatus of the present invention.

In FIG. 1, a pair of booth running rails 2 are installed parallel to each other on the floor via a frame l.
A cleaning booth 3 is installed on the booth traveling rail 2 so as to be movable in the direction of arrow A. The washing booth 3 is equipped with wheels 4.5 at its lower part, and shutters 6 that can be moved up and down electrically are provided on both left and right sides. wheel 5
is rotatably driven by an electric motor (not shown), so that the cleaning booth 3 can travel between the adjacent first stage Sl and second stage S. Each stage Sl and Sf is provided with a pair of left and right mold placement tables 7, 8, on which a press mold 151 to be cleaned, for example, shown in FIG. 10, is placed. It's like this.

Here, one mold stand 8 is configured to be movable in the Y direction on a rail 9 that spans the frame 1 in order to accommodate differences in the size of molds to be cleaned.

On the left and right inner sides of the cleaning booth 3, there are horizontal upper rails 10 extending in a direction (X direction) orthogonal to the booth traveling direction (Y direction).
An upper carrier frame 12 having wheels 11 is movably mounted on the upper rail 10, and the upper carrier frame l2 is mounted parallel to the upper rail 10 through a sleeve 13 at one end thereof. It is spline-coupled to a spline shaft l4.

In the washing booth 3, shafts 16 having sprockets 15.15 are arranged parallel to each other at the front and rear of the upper carrier frame 12 (however, only the front side is shown in FIG. 1), and between these sprockets 15.15. Both ends of the wrapped chain l7 are attached to the upper carrier frame 1
It is connected to 2. Therefore, the upper X-axis motor 18
As the shaft 16 is rotationally driven, the upper carrier frame l2 travels in the X direction.

An upper traveling truck (hereinafter simply referred to as an upper truck) 20 having wheels 19 is mounted on the upper carrier frame 12, and as shown in FIG. Both ends of a chain 23 wound between the two ends are connected. And, one subrocket 2l has a spline shaft 14
Since the spline shaft 14 is spline-coupled with the upper Y-axis motor 70, the platform car 20 travels in the Y direction while allowing the upper carrier frame l2 to travel in the X direction.

The platform car 20 has a nozzle unit 2 equipped with a cross-shaped upper nozzle head 25 with an injection port 24 at the tip pointing downward.
6 is supported, and this nozzle unit 26 is driven up and down in the Z direction by an air cylinder 27 as a lifting means provided on the platform car 20, as will be described later.

On the other hand, a lower rail 28 is spanned directly below the upper rail 10 in the frame 1 in parallel with the upper rail 10, a lower carrier frame 30 having wheels 29 is mounted on the lower rail 28, and a lower carrier frame 30 is mounted on the lower rail 28. On the frame 30 is a lower traveling trolley (hereinafter simply referred to as a lower trolley) 3.
1 is installed. The lower carrier frame 30 is driven in the same manner as the upper carrier frame 12, and the lower carrier frame 30 travels in the X direction by driving a lower X-axis motor (not shown).

Further, the lower truck 31 has the same drive type as the platform car 20, and by rotating the spline shaft 32 by a lower Y-axis motor (not shown), the lower truck 31 can be moved while allowing the lower carrier frame 30 to travel in the X direction. 3l runs in the Y direction.

A cross-shaped lower nozzle head 34 with an injection port 33 pointing upward is rotatably supported on the lower truck 31. It is designed to be rotationally driven by 35.

3 and 4 are views showing details of the nozzle unit 26. A bracket 37 is connected to the piston rod 36 of the air cylinder 27, and the nozzle unit 26 is connected to the piston rod 36 of the air cylinder 27 via a shaft 38 perpendicular to the bracket 37. A support frame 39 is rotatably supported. A guide rod 40 is connected to the bracket 37 and guides the vertical movement of the nozzle unit 26 as a whole.

A trunnion-type air cylinder 41 is attached to the bracket 37 , and a piston rod 42 of this air cylinder 41 is connected to the shaft 38 via a link 43 . Therefore, by expanding and contracting the air cylinder 4l, the attitude of the nozzle unit 26 can be changed, for example, by 90 degrees with the shaft 38 as the rotation center.

A box-shaped main body 44 is rotatably supported on the support frame 39 via horizontal tilting central axes 45 and 46 that are integral with the main body 44 . The shaft 45 is the worm wheel 4
7 and a worm 48, it is rotated by a motor 49, thereby rotating the angle α-4, for example.
The main body 44 can be oscillated and tilted up to 5 degrees, or the main body 44 can be held at a specific tilt angle, and the upper nozzle head can be moved by the worm wheel 47, worm 48, motor 49, etc. 25
A tilt adjustment driving means 50 is provided.

A support plate 53 is rotatably supported on the main body portion 44 via a horizontal oscillation shaft 51.52 that is 90 degrees out of phase with respect to the tilt center axis 45.46. The upper nozzle head 25 is rotatably supported on the support plate 53 via a bearing 54, and is also equipped with a motor 55 as upper rotation driving means. Gya56,5
Rotationally driven via 7.

The oscillating shaft 5l integrated with the support plate 53 is connected to the main body 4.
A link 58 is connected to the oscillating shaft 5l, and a swinging arm 59 is connected to the link 58. The swinging arm 59 has a ring portion 60 at one end thereof, and this ring portion 60 is connected to the motor 6.
It is inscribed in an eccentric cam 62 provided on the output shaft of No. 1 via a bearing 63. That is, by rotating the eccentric cam 62 by the motor 6l, the swinging arm 5 is rotated.
9 and the link 58, the support plate 53 makes an oscillating movement (swinging movement about the oscillating shaft 45, 46 as the rotation center) with the angle β=14° as the maximum limit, and the above-mentioned link 58, oscillating 7 The cam 59, the eccentric cam 62, and the motor 61 constitute an oscillating drive means 64 for the upper nozzle head 25.

Here, 65 in FIG. 1 is a boiler, 66 is a plunger pump, 67 is a control panel, and 68 is an operation panel provided on the outer surface of the cleaning booth 3. Further, 69 is a cable carrier for guiding the cleaning branch supply hose and electric wires.

Among these, the boiler 65 uses, for example, 80-1 as a cleaning liquid.
It is installed to supply hot water of 00°C to the upper nozzle head 25 and lower nozzle head 34, and the above hot water is pumped by a plunger pump 66 to
Upper nozzle head 25 at a pressure of 0 0 kg/a1
and is injected from the lower nozzle head 34.

The control panel 67 also controls the motors 18, 49, 55, 61 so that the movement pattern (cleaning pattern) of the upper nozzle head 25 and lower nozzle head 34 is optimal depending on the shape of the mold to be cleaned. Several dozen patterns are input in advance to the control panel 67 as movement locus data of the upper nozzle head 25 and the lower nozzle head 34.

Next, the operation of the cleaning device configured as described above will be explained.

In FIG. 1, it is assumed that the cleaning booth 3 is located at the second stage S, and the press mold 151 to be cleaned is not set on the mold mounting tables 7 and 8 of the first stage S1. First, the press mold 151 lifted and transported by a crane or the like is placed on the mold mounting tables 7 and 8 of the first stage S1 where the cleaning booth 3 is not located, and after setting it in the fixed position, the grease is removed and light oil is applied. Perform necessary preprocessing such as

Next, with one shutter 6 left open, the wheels 5 of the cleaning booth 3 are driven by an electric motor (not shown), the cleaning booth 3 is moved from the second stage S to the first stage SI, and the press mold 151 is moved to the cleaning booth 3. Close the Sha Sotar 6 after positioning it inside.

On the other hand, the control panel 67 stores in advance a plurality of patterns for the movement and pattern of the upper and lower nozzle heads 25 and 34 according to the shape of the mold to be cleaned. Press mold 1 to be cleaned by operating
A cleaning pattern corresponding to the shape of 51 is selected.

Next, the start button on the operation panel 68 is turned on to inject hot water as a cleaning liquid from the upper nozzle head 25 and the lower nozzle head 34. As a result, the upper nozzle head 25 and the lower nozzle head 34 move according to the selected pattern based on commands from the control panel 67, thereby cleaning the press mold 15l. That is, while the upper nozzle head 25 is rotationally driven by the motor 55, its height position is changed by the air cylinder 27 according to the shape of the press die 151, and furthermore, the upper nozzle head 25 is rotated in the X direction and the Y direction by the functions of the upper carrier frame 12 and the platform car 20. Move to. At the same time, in parallel with the above movement, the upper nozzle head 25 swings within a predetermined angle α around the tilt center axis 45, 46 by the function of the tilt adjustment drive means 50, while the oscillation drive means 64 As a result, the oscillating motion is performed within a predetermined angle β range around the oscillating center axes 5l and 52 as rotation centers. Furthermore, for example, at a part of the corner of the press die 151, the attitude of the entire nozzle unit 26 is changed by, for example, 90 degrees due to the action of the air cylinder 4l.

Further, the lower nozzle head 34 is rotated by the air motor 35 and moves in the X direction and the Y direction by the movement of the lower carrier frame 30 and the lower truck 3l in parallel with the movement of the upper nozzle head 25.

For example, in the case of the press mold 151 shown in FIG. 10, the cleaning pattern is such that the downwardly facing upper nozzle head 25 is moved along the trajectory shown in FIG. In this case, as shown in FIG. 6, by tilting the entire nozzle unit 26 by the function of the tilt adjustment driving means 50,
can be washed evenly. Further, as shown in FIG. 7, by tilting the support plate 53 by the action of the oscillating drive means 64, the other side wall surfaces 152 that are perpendicular to the side wall surface 153 can be evenly cleaned.

In this way, after cleaning the upper nozzle head 25 and the lower nozzle with the soap 34 in a preset pattern, the jetting of the cleaning liquid from each nozzle head 25, 34 is stopped, and the shutter 6 of the cleaning booth 3 Open the
Next, the cleaning booth 3 is moved from the first stage SI to the second stage S, and another press mold that was set during the cleaning in the first stage S1 is positioned inside the cleaning booth 3, and this Press mold l5 where the press mold finished cleaning first
If it is the same shape as 1, it is cleaned using the same cleaning pattern as above, and if it is a different shape, the corresponding pattern is selected from among the cleaning patterns stored in advance according to the shape. Perform cleaning.

The press mold 151 that has been cleaned is subjected to post-treatments such as manual finishing cleaning, draining by air blowing, and rust prevention by applying rust preventive oil or grease as necessary, and then transported by a crane or the like.

However, although the upper carrier frame 12 moves to the second stage S together with the cleaning booth 3, the lower carrier frame 30 is supported by the frame 1 and is dedicated to the first stage S1.
During the cleaning operation, cleaning by the lower nozzle head 34 is not performed.

Effects of the Invention According to the present invention, in particular, the nozzle unit having the upper nozzle head is provided with an oscillation drive means and an inclination adjustment drive means in addition to the upper rotation drive means for rotationally driving the upper nozzle head. By jetting the cleaning liquid from different directions to the mold to be cleaned based on the complicated movement of the nozzle head, not only the upper and lower parts of the mold can be cleaned, but also the vertical walls can be cleaned evenly. In particular, even if the mold structure is complex, such as a press mold for trimming, by spraying cleaning liquid in a pattern that corresponds to the shape of the mold, a high degree of cleaning can be achieved without being affected by the shape of the mold. Cleaning can be performed in a short time without any variation.

[Brief explanation of drawings]

FIG. 1 is an explanatory view of the overall configuration showing one embodiment of the present invention, FIG. 2 is an explanatory front view showing details of the upper carrier frame,
FIG. 3 is a sectional view showing details of the nozzle unit, FIG. 4 is an explanatory left side view of FIG. 3, FIG. 5 is an explanatory view showing an example of the movement pattern of the upper nozzle head, and FIGS. 6 and 7. 8(A) is a configuration explanatory diagram showing an example of a conventional cleaning device; FIG. 8(B) is a cross-sectional explanatory diagram of FIG. 8(A); FIG. 9 (A) is a configuration explanatory diagram showing another example of a conventional cleaning device, FIG. 9 (B) is an explanatory rear view of the same diagram (A), and FIG. 10 is a perspective view showing an example of a press mold to be cleaned. It is a diagram. 3... Washing booth, 12... Upper carrier frame, 20... Upper traveling trolley, 25... Upper nozzle head, 26... Nozzle unit, 27... Air cylinder as lifting drive means, 30...Lower carrier frame, 31...Lower traveling truck, 34...Lower nozzle head, 35...Air motor as lower rotation drive means, 39...Support frame, 44...Body part , 45
．． 46... Tilt center axis, 49... Motor, 50...
・Inclination adjustment drive means, 51.52... oscillation axis,
55...Motor as upper rotation driving means, 61...
・Motor, 64...Oscillating drive means, 151...
・Press mold, SI...1st stage, S1...2nd stage. Figure 8 (A) Figure 8 CB) Figure 9 (A) Figure 9 (B) 132

Claims (1)

[Claims] (1) A device that sprays cleaning liquid from nozzle heads placed above and below the mold to be cleaned, and cleans the mold while moving the upper and lower nozzle heads based on a predetermined cleaning pattern. A cleaning booth is installed in a position surrounding the mold to be cleaned, and an upper part is installed above and below the cleaning booth with the mold in between, and runs in two orthogonal directions, the X direction and the Y direction, in a horizontal plane. A nozzle unit that is supported by the upper traveling truck, is driven up and down by a lifting drive means provided on the upper traveling truck, and has an upper nozzle head at its lower end that has an injection port pointing toward the mold. , a lower nozzle head which is provided on the undercarriage and has an injection port oriented toward the mold, and is rotationally driven by a lower rotation drive means provided on the undercarriage with the injection port oriented toward the mold. , the nozzle unit includes: an upper rotational drive means for rotating the upper nozzle head with the injection port of the upper nozzle head directed toward the mold; an oscillating drive means for swinging and displacing the upper nozzle head as a center, and a tilt adjustment drive means for adjusting the tilt of the upper nozzle head around a horizontal tilt center axis that is 90 degrees out of phase with the oscillation center axis as a rotation center. A type of cleaning device characterized by: