JP4129933B2 - Mold product removal device - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a mold product take-out apparatus for releasing (taking out) a product remaining in a mold when the mold is opened.
[0002]
[Prior art]
As a product removal device from the mold, there is a device that uses a protruding mechanism in the mold or attaches a hydraulic cylinder to the ejector plate, so that the mold has an independent protruding device. Depending on the case, such a protruding mechanism or device may not be used.
[0003]
[Problems to be solved by the invention]
That is, in the case of soft thin-walled products, ring-shaped rubber products, etc., a method of releasing the mold from the mold by the operator's manual work or by blowing air onto the product has been adopted.
[0004]
However, it is thought that manual work is troublesome and the work ability is lowered. In addition, in the case of air blowing, it is considered that the product is blown off by sudden air blowing.
[0005]
The present invention has been made in view of the above-described problems of the prior art, and an object of the present invention is to provide a simple and reliable product take-out device in which a product is taken out from a mold by a rotating action of a brush. It is to be.
[0006]
[Means for Solving the Problems]
The technical means made by the present invention in order to achieve the above object are as follows.
According to a first aspect of the present invention, there is provided a support portion attached to a plastic working machine in the vicinity of a mold, a front / rear slide mechanism provided in the support portion, and movable in the front / rear direction by the front / rear slide mechanism. A vertical slide mechanism that moves up to the mold when the mold is opened, a drum that can be moved up and down by the vertical slide mechanism, and that can be rotated via a drive source and a power transmission mechanism, and an outer periphery of the drum A product-extracting rotating brush that is lowered between the molds when the mold is opened and the brush part contacts and rotates on the product adhering surface of the mold. A mold product take-out device is provided, which is provided with a plurality of air blow holes provided on the outer peripheral surface and capable of blowing air in the direction of the tip of the brush portion.
According to a second aspect of the present invention, in the first aspect, the brush portion is provided spirally on the outer peripheral surface of the drum.
According to a third aspect, in the second aspect, the brush portions are provided at a desired pitch, and the air blowing holes are provided at positions that do not interfere with the brush portions.
According to a fourth aspect of the present invention, in any one of the first to third aspects of the invention, the product entrainment prevention that prevents the product from being caught in the rotation direction of the brush portion by bringing the brush portion in the vicinity of the flocked tip. It is to have a part.
According to a fifth invention, in the fourth invention, the product entrainment preventing portion is provided with a vacuum pipe with a suction opening facing the side facing the brush portion.
According to a sixth aspect of the present invention, there is provided a rotary brush advance process in which a product take-out rotary brush moves forward in accordance with a mold opening operation of the mold after product molding, and the product take-out to a product position remaining in the mold opened. A rotating brush lowering step in which the rotating brush descends, and the product remaining in the mold is brought into contact with the brush portion by rotating the spiral brush portion of the rotating brush for taking out the product in contact with the product. The product is removed from the mold so that the product is peeled off from the mold, and the drum constituting the product take-out rotary brush has air in the direction toward the tip of the brush. An air blowing hole capable of blowing air, and forcibly blowing air from the air blowing hole in the product removing step. Resides in that the mold product extraction method according to.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of an apparatus for taking out a mold product of the present invention will be described with reference to the drawings.
[0008]
The mold product taking-out apparatus of the present invention includes a support portion 1 mounted on a plastic processing machine (such as an injection molding machine) I in the vicinity of a mold D, a front / rear slide mechanism 15 provided in the support portion 1, The slide mechanism 16, the rotating brush 4, and the product entrainment prevention unit 22 are configured.
[0009]
The support portion 1 is mounted on an injection molding machine I near the mold D, and the rotating brush 4 is positioned above the mold D via left and right linear shafts 2 and 2 extending horizontally forward. In the figure, 3 indicates a shaft receiving portion.
[0010]
Moreover, since this support part 1 shall be provided near the metal mold | die D, when the metal mold | die D is changed, it is comprised so that turning is possible so that a metal mold | die installation may not be disturbed. The entire support portion 1 may be configured to be turnable, but only the vicinity of the attachment portion of the left and right linear shafts 2 and 2 that support the rotating brush 4 may be configured to be turnable. The setting structure is arbitrary.
[0011]
The rotating brush 4 is configured to be rotatable by being in communication with a rotation driving source (motor) 12 through, for example, a timing belt 13.
[0012]
The rotary brush 4 includes a drum 6 that is rotatably supported through an axial shaft 5 and a brush portion 7 that is provided in a spiral shape in the axial direction of the outer peripheral surface of the drum 6. . In the figure, 8 and 8 are timing pulleys, 9 is a bearing, 10 is a mounting plate, and 11 is a stopper.
[0013]
The brush part 7 is preferably made of a material, shape, dimensions, etc. that are excellent in product release performance and do not damage the product. For example, the brush part 7 is illustrated as shown in order to improve the ease of peeling of the product. 7 is considered to be provided in a spiral shape (spiral shape), and in particular, in the case of rubber or curable, the mold becomes high temperature, so that a brush portion made of a material having high heat resistance, for example, nylon or the like is provided. preferable.
However, these are merely examples, and various configurations can be arbitrarily selected within the scope of the present invention.
[0014]
In the present embodiment, since one brush portion 7 is arranged in a spiral shape in the direction of the outer peripheral axis of the drum 6 with a desired pitch, there is an advantage that the product can be easily peeled off from the mold.
The number of the brush portions 7 to be arranged, the arrangement pitch of the brush portions 7 and the like are arbitrary, and are not configured by the single brush portion 7 as in the present embodiment, but in the whole area of the outer periphery of the drum or at an arbitrary place. The brush portion may be provided in an arbitrary range, and the width of the brush surface h is arbitrary.
[0015]
In this embodiment, the rotary brush 4 is configured to be rotatable by communicating with the rotary drive source 12 provided above via the timing belt 13. However, the rotary drive source 12 is directly connected to the drum 6 of the rotary brush 4. It is within the scope of the present invention if the rotating brush 4 is configured to be rotatable, such as being configured to be rotatable at least.
[0016]
The rotating brush 4 is formed to have a desired diameter d, and is not particularly limited to the diameter d and the length of the brush surface h. For example, the brush diameter d that can contact the entire surface of the mold at once. And a large-diameter and long-shaped one having a brush surface h, that is, having a brush diameter d that is about the same as the longitudinal length of the product attachment surface of the mold, and about the same as the lateral length of the attachment surface. The structure which has the brush surface h may be sufficient. Further, a plurality of rotating brushes 4 having an arbitrary size are arranged in parallel or in a plurality of columns, and a combination of these parallel and columns is also within the scope of the present invention, and can be used alone or in any combination. It is configurable.
[0017]
In the present embodiment, a plurality of air blowing holes 14 communicating with the internal space are provided around the brush portion 7 of the rotary drum 6 provided with the brush portion 7, and the drum 6 is supplied with air from the air supply source. By being configured to supply air, the peeling action by the forced blow of air from the air blowing holes 14 is used simultaneously with the peeling action by the brush portion 7.
[0018]
Various conditions such as the hole diameter of the air blowing holes 14, the number of holes arranged, and the interval between adjacent holes are not particularly limited and can be arbitrarily set. The structure of the holes 14 is not particularly limited. In addition, for example, an air blowing nozzle may be provided separately from the rotating brush 4.
[0019]
The front / rear slide mechanism 15 has one end fixed on the support portion 1 and horizontally extended forward (in the mold direction), and the left and right linear shafts 2 and 2 are freely slid forward and backward. And an air (oil) cylinder (not shown) for moving the support plate 19 back and forth.
[0020]
In the air (oil) cylinder, the tip of a cylinder rod of a cylinder (not shown) provided on the support portion 1 is fixed to the back surface of the support plate 19.
[0021]
A rotating brush 4 is suspended below the support plate 19 together with a storage box 23 for storing the drive source 12.
[0022]
As a result, the support brush 19 is moved back and forth by the air (oil) cylinder, so that the rotating brush 4 is also moved back and forth simultaneously.
[0023]
The vertical slide mechanism 16 is constituted by an air (oil) cylinder or the like, is inserted through the upper and lower surfaces of the support plate 19 integrally connected to the front / rear slide mechanism 15, and is suspended below the support plate 19. The tip of the cylinder rod 16 a is fixed to the upper surface of the rotational drive source storage box 23.
[0024]
Accordingly, the rotary brush 4 is moved up and down by the air (oil) cylinder 16.
[0025]
Reference numerals 17 and 17 in the figure denote left and right linear shafts that have their respective tips fixed to the upper surface of the rotary drive source storage box 23 and support the rotary brush 4 together with the rotary drive source storage box 23 so as to be suspended. Reference numeral 18 denotes a guide tube, 20 denotes a shaft receiving portion, and 21 denotes a stopper.
[0026]
Further, it is preferable that the rotation operation of the slide mechanism and the brush is controlled so as to be interlocked with the mold opening / closing operation.
[0027]
The product entrainment prevention unit 22 has a rear end (also referred to as an upper end) attached to the back surface of the rotational drive source storage box 23 and is suspended downward so as to protrude downward. It is a thin plate having substantially the same length, and its tip (also referred to as the lower end) 24 is positioned close to the tip of the flocked portion of the brush portion 7, and the rotation direction (as indicated by the arrow R in FIG. Products that may be caught in the direction shown in FIG.
[0028]
That is, normally, the product A peeled off from the mold D by the stripping operation by the brush portion 7 of the rotating brush 4 and the stripping operation by air blowing from the air blowing holes 14.
However, even if the product A is accidentally caught on the brush portion 7 and carried in the rotation direction, the product A is removed from the brush portion 7 by the product entrainment prevention portion 22 in which the tip 24 is positioned close to the hair transplantation tip of the brush portion 7. Therefore, there is no possibility that the product A will be caught up (there is no risk of hindering the rotation operation of the rotating brush 4 due to the winding up).
[0029]
Moreover, it is preferable that the front end 24 of the product entrainment prevention portion 22 is edged using a soft material so as not to damage the product.
[0030]
The product entrainment prevention unit 22 needs to be considered so as not to leave a gap as close to the brush unit 7 as possible so that the product peeled off by the brush unit 7 does not enter the inside of the brush rotation.
[0031]
Further, the product entrainment prevention part 22 may be provided with a vacuum pipe with a suction opening facing the brush facing surface side.
By providing the vacuum piping in this way, it is possible to forcibly suck out and discharge thin burrs that are likely to enter the brush part 7, so that thin burrs or the like adhere to the brush. There is nothing.
[0032]
Here, the use state of the product take-out apparatus shown in this embodiment will be described.
[0033]
First, in accordance with the mold opening operation of the mold D, the rotary brush 4 is moved forward to the mold opening position by an air cylinder (not shown) of the front / rear slide mechanism 15, and then the mold is moved by the air cylinder of the vertical slide mechanism 16. The rotating brush 4 is lowered between D and D, that is, to the product position remaining in the mold D.
[0034]
When the rotary brush 4 is contact-rotated with respect to the product remaining in the mold, the product is removed from the mold by the rotating rotary brush 4. The product removed from the mold so as to be peeled off is dropped and collected as it is.
[0035]
In addition, according to the present embodiment, the structure for removing by the spiral brush portion 7 and the structure for removing air by air blowing from the air blowing holes 14 around the brush portion 7 of the drum 6 are used in combination. The ease is improved.
[0036]
【The invention's effect】
Since the present invention is configured as described above, and the product remaining on the mold is removed by peeling and rotating the brush up and down, the conventional manual work of taking out the product and the product of the mold by air blowing are removed. It was possible to provide a simple and reliable mold product take-out apparatus that does not cause a product blow-off defect during take-out.
[0037]
Moreover, according to the product take-out device of the present invention, the burr remaining together with the product can be peeled off together with the product, so that the cycle can be improved and it is also rational.
[0038]
According to the present invention, since the brush is provided through the back-and-forth and the up-and-down moving mechanism as described above, the position up to the cavity surface can be easily set according to various thicknesses of the mold, and the cost is low because of the simple structure Inexpensive can also be achieved.
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment of a product take-out device for a mold according to the present invention.
FIG. 2 is a front view showing an embodiment of the device of the present invention.
FIG. 3 is a cross-sectional view of a brush.
FIG. 4 is an abbreviated front view of a brush.
[Explanation of symbols]
1: Support unit 4: Rotating brush 6: Drum 7: Brush unit 12: Rotation drive source (motor)
14: Air blowing hole 15: Front / rear slide mechanism 16: Vertical slide mechanism 22: Product entrainment prevention part I: Injection molding machine D: Mold

Claims (6)

  A support attached to a plastic processing machine near the mold;
  A back-and-forth slide mechanism provided in the support portion;
  An up-and-down slide mechanism that is provided so as to be movable in the front-rear direction by the front-rear slide mechanism, and is moved up onto the mold when the mold is opened;
  The mold includes a drum that is vertically movable by the vertical slide mechanism and that is rotatably rotatable via a drive source and a power transmission mechanism, and a brush portion that is provided on the outer peripheral surface of the drum. A rotating brush for product removal that is lowered between the molds at the time of opening and the brush part contacts and rotates on the product attachment surface of the mold;
  A die product take-out device comprising a plurality of air blow holes provided on the outer peripheral surface of the drum and capable of blowing air toward the tip of the brush portion.   The mold product take-out apparatus according to claim 1, wherein the brush portion is spirally provided on an outer peripheral surface of the drum.   The brush portion is provided at a desired pitch,
  3. The mold product take-out apparatus according to claim 2, wherein the air blowing hole is provided at a position where the air blowing hole does not interfere with the brush portion.   The gold | metal | money prevention part as described in any one of Claims 1 thru | or 3 provided with the product entrainment prevention part which adjoins the flocked tip of the said brush part, and prevents the entrainment of the product in the rotation direction of the said brush part. Mold product removal device.   5. The mold product take-out device according to claim 4, wherein the product entrainment preventing portion includes a vacuum pipe having a suction opening facing a side facing the brush portion.   After the product molding, a rotary brush advance process in which the product take-out rotary brush moves forward in accordance with the mold opening operation of the mold,
  A rotating brush lowering step in which the product removing rotating brush descends to a product position remaining in the mold that has been opened;
  The product remaining in the mold is brought into contact with the spiral brush portion of the rotary brush for taking out the product so as to rotate, so that the product is moved by the rotation operation while the brush portion is in contact with the mold. Product removal process that is removed so as to be peeled off,
  The drum constituting the rotating brush for product removal is provided with an air blowing hole capable of blowing air toward the tip of the brush,
  A method for removing a product from a mold, wherein in the product removing step, forced air is blown out from the air blowing hole.

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