JPH11114969A - Product removing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove a product from a mold without impairing a product accuracy by attracting a metal part of the product by an electromagnet to hold the product at the time of lifting the product by a lift pin member. SOLUTION: First, an eccentric cam 25 is rotatably driven by an operation of a first actuator 24. A lift pin member 21 is gradually raised by an engaging relationship between a cam groove 25a of the cam 25 and a cam follower 23. Thus, a blade 3 is lifted upward, and lifted up from a mold 2. And, the blade 3 lifted upward from the mold 2 is attracted by an electromagnet 31 of an excited state and held at a site of a holder. Therefore, a product 3 can be mechanically removed from the mold 2. And, since the magnet 31 is elastically supported, an impact generated by a collision of the magnet 31 and the product 3 is alleviated, and hence there is no fear of giving an adverse influence to the product.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a product take-out device for taking out a product having a metal part from a mold.

[0002]

2. Description of the Related Art In general, in electrophotographic copying machines, printers, facsimile machines, etc., a cleaning blade for removing residual toner on a photoreceptor such as a drum or a belt, a thin film while frictionally charging toner in a developing machine. A blade for an electrophotographic apparatus, such as a developing blade for forming an image, is used.

[0003] As such an electrophotographic blade,
For example, it is known that a blade body is attached to a metal holder and integrated.

[0004] The manufacture of such blades is, for example, 2
After molding with a mold composed of two molds, the mold is divided into two molds, a blade as a product is attached to one of the molds, and then the blade is taken out from one of the molds. Done.

[0005]

In the manufacture of such a blade, there is a demand that the blade be taken out of a mold and automatically transferred to the next step.

[0006] In this case, there is also a demand that the blade main body be transported in a form that does not impair the product accuracy and be placed at a predetermined position in order to ensure a certain product accuracy.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a product take-out apparatus capable of taking out a product from a mold without impairing product accuracy.

[0008]

The invention according to claim 1 is a product take-out device for taking out a product having a metal part from a mold, wherein the product take-up pin member is provided. A push-up means for pushing up the metal part of the product to push out the product from the mold, and an elastic magnet that is elastically supported, and when the product is pushed up by the push-up pin member, the electromagnetic magnet applies a force to the metal part of the product. Holding means for holding the product by suction.

According to the first aspect of the present invention, when the metal portion of the product is pushed up by the push-up pin member of the push-up means and the product is pushed out of the mold, the metal portion of the pushed-out product is an electromagnetic magnet. Is held by the holding means. Further, since the electromagnetic magnet is elastically supported, a shock caused by a collision between the electromagnetic magnet and the product (metal portion) is cushioned when the product is pushed up by the push-up pin member.

According to a second aspect of the present invention, in the product take-out apparatus of the first aspect, the holding means has a support frame and a holding frame attached to the support frame via a spring member to hold the electromagnetic magnet.

According to the second aspect of the present invention, since the holding frame for holding the electromagnetic magnet is supported by the support frame via the spring member, when the product is pushed up by the push-up pin member, the electromagnetic magnet and the product ( The shock generated by the collision with the metal portion is reasonably absorbed and reduced by the spring member.

According to a third aspect of the present invention, in the product take-out device of the second aspect, the mold is further engaged with a part of a mold provided on the support frame, and the product is pushed up by the push-up pin member. And a lifting prevention member for preventing the lifting of the body.

According to the third aspect of the present invention, since the lifting prevention member engages with the end of the mold, when the product is lifted up by the lifting pin member, the lifting prevention member prevents the mold from lifting. You.

According to a fourth aspect of the present invention, in the product take-out apparatus of the second or third aspect, the holding frame rotatably supports a rotating frame to which an electromagnetic magnet is attached, and the product is made of metal. A holder for an electrophotographic apparatus attached to a blade body and integrated with the holder, further comprising: lifting means for supporting the support frame so as to be able to move up and down, and the rotating frame such that the holder is positioned on the lower side. Rotating means for rotating.

According to the fourth aspect of the present invention, the metal holder is located at the lower side, and when the metal holder is placed at a predetermined position, damage to the blade body is avoided.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2 showing the schematic configuration, 1
Is a product take-out device for taking out a product electrophotographic device blade 3 from the divided mold 2. This blade 3 is made of a metal holder 4 (metal part).
The blade main body 5 is attached to and integrated with (see FIG. 3), and has a metal part in part.

The mold 2 is placed at a product take-out position on the base frame 11, and push-up means 1 for pushing the blade 3 out of the mold 2 under the base frame 11.
2 are provided.

The push-up means 12 includes a pair of push-up pin members 21 and 21 for pushing up the holder 4 of the blade 3 from below and pushing the blade 3 out of the mold 2. Is applied through a pin hole (not shown) provided in the mold 2. That is, the push-up pin members 21, 21 are erected on the base table 22, and the cam followers 23 provided on the base table 22 are provided in the cam grooves 25 a of the eccentric cam 25 driven to rotate by the first actuator 24. It is movably engaged, and the eccentric rotation of the eccentric cam 25 causes the push-up pin members 21 and 21 to move up and down in the vertical direction.

The base frame 11 is provided with a vertical support plate 26. The support plate 26 is provided with slide units 27, 27 through which an intermediate portion of the push-up pin member 21 is slidably inserted. .

A holding means 32 having electromagnetic magnets 31, 31 is provided above the mold 2 placed at the product take-out position (base frame 11). The holding means 32 is provided with an electromagnetic magnet. The blades 31 are detachably adsorbed to the holder 4 of the taken-out blade 3 (product) so as to adsorb and hold the blade 3. The electromagnetic magnets 31, 31 are arranged at upper positions corresponding to the push-up pin members 21, 21.

The holding means 32 has a magnet base 33 (rotating frame) to which the electromagnetic magnets 31, 31 are attached and fixed at fixed intervals, and the projection 33a of the magnet base 33 is provided with a stepping motor. 34
At a predetermined angle.

The rotating shaft member 35 includes a holding frame 36
Are rotatably supported via bearings 36a, 36a, and one end thereof is connected to a stepping motor 34 via a flexible coupling 37 to constitute a rotating means for rotating the magnet base 33.

Further, rod members 41, 41 are erected on the holding frame 36, and the upper ends of the rod members 41, 41 are inserted into the support frame 42 so as to be slidable in the vertical direction, and the mounting nuts are attached. At 43, 43, it is impossible to drop from the support frame 42. Then, spring members 44, 44 are interposed between the holding frame 36 and the support frame 42 around the rod members 41, 41, and when the push-up pin members 21, 21 push up, the electromagnetic magnet 31 (holding frame). The spring member 44 absorbs and absorbs the shock received by 36). Therefore, the electromagnetic magnet 31 is elastically supported.

Further, at both ends of the support frame 42,
Lifting prevention members 45, 45 extending vertically downward are provided, and the lower end portions of the lifting prevention members 45, 45 press both ends of the mold 2 from above, and push-up pin members 2
At the time of pushing up by the molds 1 and 21, the mold 2 is prevented from floating.

Further, on the support frame 42, 1
A pair of support rod members 46, 46 are erected, and a connecting plate 47 for connecting them is provided near the upper end of the support rod members 46, 46. The connecting plate 47 is a cam follower 4
7a, the cam follower 47a is engaged with a cam groove 49a of an eccentric cam 49 that is eccentrically rotated by a second actuator 48, and the holding frame 36 Therefore, lifting means for raising and lowering the electromagnetic magnets 31, 31 in the up-down direction is configured.

The second actuator 48 is mounted on a movable base 52 via a support bracket 51. A slider 53 is provided on the lower surface side of the movable base 52. The slider 53 discharges the product in which the blade 3 is regularly placed in a product case (not shown) from a product take-out position where the blade 3 is taken out of the mold 2. It is slidably engaged with a rail member 54 extending to the position.
A part of a synchro belt 55 rotatably provided along the rail member 54 is attached and fixed to the movable base 52, and the movable base 52 is rotated by driving the synchro belt 55 so that the movable base 52 is It can be moved along.

The movable base 52 is provided with a vertically extending support plate 56, and the support plate 56 is provided with slide units 57, 57 through which an intermediate portion of the support rod member 46 is slidably inserted. I have.

Next, the operation of the product take-out apparatus 1 will be described.

First, the eccentric cam 25 is rotationally driven by the operation of the first actuator 24, and the push-up pin members 21 and 21 are gradually raised due to the engagement relationship between the cam groove 25a of the eccentric cam 25 and the cam follower 23. As a result, the blade 3 (the part of the holder 4) is pushed upward, and is pushed out of the mold 2. Then, the blade 3 extruded upward from the mold 2 is held by being attracted to the magnetized magnets 31 in the excited state at the portion of the holder 4.

At this time, the push-up pin members 21 and
The blade 3 (holder 4) pushed up by 1 collides with the electromagnetic magnets 31, 31 and is attracted.
Since the upper end of 1 protrudes above the support frame 42, the distance between the holding frame 36 and the support frame 42 is reduced, and the spring member 44 is compressed. Therefore, when the spring members 44, 44 are compressed, the push-up pin members 2
When the blades 3 are pushed up by the blades 1 and 21, the shock applied to the electromagnetic magnets 31 and 31 (the holding frame 36) is absorbed and reduced.

The support frame 42 is provided with a lifting prevention member 45 which is engaged with the end of the mold 2 to prevent the mold 2 from rising.
At the time of pushing up by 1, 21, the lifting prevention member 45
Presses the end of the mold 2 from above, and the blade 3
When the mold 2 is extruded from below, the mold 2 is prevented from floating together with the blade 3, and the blade 3 is pushed out of the mold 2.
Is easily taken out.

After the holder 4 of the blade 3 is attracted and held by the electromagnetic magnet 31, the eccentric cam 49 is driven to rotate by the operation of the second actuator 48, and the cam groove 49a of the eccentric cam 49 is Cam follower 47
The blade 3 is raised by a predetermined amount in the engagement relationship with a, and then the rotation shaft member 35 is rotated by the operation of the stepping motor 34, and the blade 3 is rotated so that the holder 4 is located on the lower side. .

Then, when the synchro belt 55 is driven to rotate, the movable base 52 moves to the product discharge position along the rail member 54, so that the blade 3 remains in the supporting state in which the holder 4 is located on the lower side. Is held by the electromagnetic magnet 31 and transported to the product discharge position.

At the product discharge position, the electromagnetic magnet 31 is demagnetized, the suction holding of the blade 3 is released, and as shown in FIG. Set bracket 61 inside,
It is set to 61. Therefore, only the holder 4 comes into contact with the set fittings 61, 61, and the contact between the blade body 5 and the set fitting 61 is avoided, so that the product accuracy is not impaired.

[0036]

The present invention is embodied in the form described above, and has the following effects.

According to the first aspect of the present invention, the product is pushed out of the mold by the push-up pin member of the push-up means, and the metal part of the pushed-out product is attracted and held by the electromagnetic magnet of the holding means. Therefore, the product can be mechanically removed from the mold without any difficulty, which is advantageous in automating a series of manufacturing processes. In addition, since the electromagnetic magnet is elastically supported, a shock caused by a collision between the electromagnetic magnet and the product (metal portion) can be buffered when the product is pushed up by the push-up pin member, which adversely affects the product. There is no fear.

According to the second aspect of the present invention, since the holding frame for holding the electromagnetic magnet is attached to the supporting frame via a spring member, the electromagnetic magnet can be elastically supported with a simple structure. The shock at the time of pushing up the product by the pushing up pin member can be reduced.

According to the third aspect of the present invention, since the supporting frame is provided with the lifting prevention member which is engaged with the end of the mold to prevent the lifting of the mold, the lifting prevention member is engaged with the end of the mold. In addition, when the product is extruded, the mold can be prevented from rising, and the product can be easily removed from the mold.

According to the fourth aspect of the present invention, the holder of the electrophotographic apparatus is rotated by the rotating means so that the holder is located on the lower side. By supporting, it is possible to avoid contact between the blade main body and other portions, which is advantageous in securing product accuracy.

[Brief description of the drawings]

FIG. 1 is a front view of a product take-out device according to the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a perspective view of a blade for an electrophotographic apparatus which is an example of a product according to the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Product take-out device 3 Electrophotographic device blade 4 Holder 5 Blade body 12 Push-up means 21 Push-up pin member 31 Electromagnetic magnet 33 Magnet base 35 Rotating shaft member 36 Holding frame 42 Support frame 44 Spring member 45 Floating prevention member

Claims (4)

[Claims] 1. A product take-out device for taking out a product partially having a metal portion from inside a mold, comprising a push-up pin member, wherein the push-up pin member pushes up a metal portion of the product and from the inside of the mold. Push-up means for pushing out the product; holding means for holding the product by having an electromagnetic magnet elastically supported and adsorbing the metal part of the product with the electromagnetic magnet when the product is pushed up by the push-up pin member. A product take-out device comprising: 2. The product take-out apparatus according to claim 1, wherein said holding means has a support frame and a holding frame attached to said support frame via a spring member to hold an electromagnetic magnet. 3. The apparatus according to claim 1, further comprising a lifting prevention member which is provided on said support frame and which engages with a part of the mold to prevent the mold from lifting when the product is pushed up by said push-up pin member. 2. The product removal device according to 2. 4. The electrophotographic apparatus, wherein the holding frame rotatably supports a rotating frame to which an electromagnetic magnet is mounted, and wherein the product is mounted on a metal holder and integrated with a blade body. The blade for use according to claim 2 or 3, further comprising: elevating means for supporting the support frame so as to be able to elevate and lower, and rotating means for rotating the rotating frame so that a holder is located on a lower side. Product take-out device.