JPH037104Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a female mold positioning device for positioning a female mold used when pressing powder such as foundation or white powder.

[Prior art]

Generally, in order to manufacture cosmetics such as foundations and white powders, there are two steps: filling a predetermined amount of powder into an inner plate inserted into a female mold, and filling the powder into a female mold so that it is applied to the top surface of the inner plate. A process of supplying release paper to the mold, a process of inserting a male mold into a female mold to mold the powder in the inner tray, a process of molding the powder through the male mold, and a process of molding the powder through the male mold. Afterwards, the process consists of the process of extracting the male mold and peeling off the release paper, and the process of removing the inner plate from the female mold.

By the way, if the inner plate inserted into the female mold is circular, the male mold can be inserted at a predetermined position even if the female mold is not positioned, making it easy to automate the production line. It is.

However, if the shape of the inner plate is other than round, especially rectangular or oval, the male mold cannot be inserted automatically unless the female mold is positioned. Can not.

For this reason, in the prior art, when the inner plate is rectangular or oval, the feeding of release paper, insertion of the male mold, etc. are done manually, requiring a large number of skilled workers. This was an obstacle to automating the production line.

[Problem that the invention attempts to solve]

The present invention was devised in view of the problems of the prior art described above, and by positioning the female mold conveyed by the conveyor line in a predetermined direction, the release paper supply process and the male mold It is an object of the present invention to provide a female mold positioning device that can automate the insertion process and the like, and can also rotate the female mold with a small motor.

[Means for solving problems]

In order to solve the above problems, the present invention includes a female mold that is conveyed by a conveyor and has one or more notches on the outer periphery, a pair of clamp mechanisms that clamp the female mold on the conveyor at a predetermined position, a rotation mechanism that rotates the female mold while being clamped by the clamp mechanism; and a rotation mechanism that is provided so as to be retractable from at least one of the pair of clamp mechanisms, and whose tip end is a notch in the female mold. a positioning pin serving as an engaging portion that can be engaged with the positioning pin; a weak spring that constantly biases the positioning pin toward the outer periphery of the female mold so that the tip of the positioning pin engages with the notch of the female mold; By rotating the female mold using the rotation mechanism while the female mold is clamped by the clamp mechanism, the tip of the positioning pin is engaged with the notch of the female mold by the weak spring. and a cylinder mechanism that presses the positioning pin toward the notch with a strong force using fluid pressure when the pin is assembled.

[Effect]

With this configuration, when the female mold is clamped by the clamp mechanism and rotated by the rotation mechanism, the positioning pin is pressed against the outer periphery of the female mold by the weak spring. Therefore, when the female mold is rotated by the rotation mechanism, it can be rotated smoothly. When the tip of the positioning pin engages with the notch of the female mold due to the rotation of the female mold, the cylinder mechanism is actuated by fluid pressure and presses the positioning pin with strong force, causing the rotational force of the rotation mechanism. To ensure the positioning of a female mold against the

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 6.

In the figure, 1 is a conveyor that moves in the direction of arrow A.
Female molds 2 are placed on the conveyor 1 and are sequentially conveyed. Here, the female mold 2 includes a rectangular male mold insertion part 2A, an inner plate insertion part 2B formed at the lower end side of the male mold insertion part 2A (see FIG. 1),
It is formed from V-shaped notches 2C, 2C formed 180 degrees opposite to each other on the outer circumferential surface, and an inner plate 3 is disposed inside the inner plate insertion part 2B, and a predetermined amount of powder is inserted into the inner plate 3. 4 is filled.

Reference numerals 5 and 5 designate a pair of clamp mechanisms for clamping the female mold 2 on the conveyor 1, and each clamp mechanism 5 includes a block 6 and a clamp 7 attached to the block 6, the opposing surface of which is a gripping surface 7A. and an air cylinder 8 which operates the clamp 7 in the direction of arrow B or B' via the block 6. Here, each cylinder 8 operates in the direction of arrow B when a female mold detection sensor 32 (described later) detects the female mold 2, and also operates with a predetermined delay because a positioning detection sensor 34 (described later) detects the lever 14. After a certain period of time, it operates in the direction of arrow B'.

Reference numeral 9 denotes a rotation mechanism that rotates the female mold 2 while the female mold 2 is clamped by the clamp mechanism 5, and the rotation mechanism 9 has a rubber material 1 on the lower surface side.
A rotary plate 10 to which 0A is attached, a motor 11 that rotationally drives the rotary plate 10, a reducer 12 that reduces the rotation of the motor 11, and a rotary plate provided between the reducer 12 and the rotary plate 10. It consists of a clutch 13. The motor 11 is rotated in the direction of arrow C by a clamp completion detection sensor 33, which will be described later, and stops rotating when the positioning detection sensor 34 detects the lever 14. Note that the rotary plate 10, motor 11, etc. are configured to move up and down in the direction of arrow D or D' by a vertical movement mechanism (not shown).

14 is connected to one of the pair of clamps 7 through a pin 15 in the direction of arrow E in the figure;
A lever 16 is provided to be rotatable in the E' direction, a pin insertion hole 16 is formed in the one clamp 7 in a direction perpendicular to the moving direction A of the conveyor 1, and 17 is inserted into the pin insertion hole 16 so as to be freely retractable. and said lever 1
When the positioning pin 17 is pushed toward the projecting side by the lever 14, the engaging portion 17A at the tip engages the female mold 2 as shown in FIG. When engaged with the notch 2C and when the engaging portion 17A is in contact with the outer circumferential surface of the female mold 2, it is moved backward to the right in the figure (see FIG. 3).

Reference numeral 18 denotes a pin-out cylinder mechanism that urges the positioning pin 17 to the protruding side via the lever 14;
The cylinder mechanism 18 includes a cylinder member 20 attached to one clamp 7 via a mounting plate 19;
It is defined between a bottomed cylinder 21 bored in the cylinder member 20, a piston 22 slidably inserted into the cylinder 21, and a piston 22 located inside the cylinder 21. A tobacco room 23,
A weak spring 24, which is a compression spring, is stretched in the spring chamber 23 and urges the piston 22 toward the protruding side; and a cylinder member 20 is configured to supply air into the spring chamber 23 when the piston 22 is displaced toward the protruding side. , air supply passages 25 and 2 formed in the piston 22, respectively.
6, and air exhaust passages 27 and 28 formed in the cylinder member 20 and piston 22, respectively, to exhaust air in the spring chamber 23 to the outside when the piston 22 is displaced to the contraction side. The air supply passage 25 is connected to an air source 30 via an air pipe 29, and a solenoid valve 3
1 is provided. The solenoid valve 31 opens to supply air when the female mold detection sensor 32 is activated, and the same operation as the cylinder 8 occurs after a predetermined delay time after the positioning detection sensor 34 detects the lever 14. The valve closes at the appropriate timing and stops the air supply.

Therefore, as shown in FIGS. 3 and 5, when the positioning pin 17 is retracted and the piston 22 is contracted via the lever 14, even if the solenoid valve 31 is in the open state, the spring chamber is closed. 23 is air discharge passage 2
7, 28, and the positioning pin 17 is connected to the weak spring 2.
It is only pressed by 4. On the other hand, as shown in FIGS. 2 and 4, when the positioning pin 17 is projected and the piston 22 is projected by the weak spring 24 via the lever 14, the spring chamber 2
3 communicates with the air supply passages 25 and 26, and the piston 22 is pressed with a strong force by the air pressure supplied in the spring chamber 23 in addition to the weak spring 24.
The engagement force between the positioning pin 17 and the notch 2C of the female mold 2 is increased.

Furthermore, 32 is located between the pair of clamp mechanisms 5, 5 and is provided on the lower surface of the conveyor 1, and the female mold 2
A female mold detection sensor 33 is provided on the lower surface of the clamp 7 and detects the completion of clamping from the displacement of the clamp 7. A clamp completion detection sensor 34 is provided on the clamp 7 and is located at A positioning detection sensor that detects that positioning has been performed from rotation in the E direction is shown.

The present embodiment is configured as described above, and its operation will be described next.

First, before operation, a pair of clamp mechanisms 5
are retreating away from each other due to the contraction of the air cylinder 8, and the rotating mechanism 9 is moved in the direction of arrow D' and lifted upward. Also,
Although the solenoid valve 31 is closed, the cylinder mechanism 18
The piston 22 of is extended by a weak spring 24.

In this state, as the conveyor 1 advances in the direction of arrow A, when the female mold 2 placed thereon reaches the position of the female mold detection sensor 32, the air cylinder 8 of the clamp mechanism 5 moves in the direction of arrow B. The clamp 7 clamps the female mold 2 with its gripping surface 7A. At this time, the engaging portion 17A of the positioning pin 17
comes into contact with the outer peripheral surface of the female mold 2 and is forced to retreat. Therefore, the lever 14 rotates in the direction of arrow E', and its tip pushes the piston 22 to the right in the figure. This state is the state shown in FIG. As a result, by the rightward displacement of the piston 22, the weak spring 24 is bent, and the air in the spring chamber 23 is exhausted through the air exhaust passages 28, 27.
The cylinder mechanism 18 is in the state shown in FIG. In this way, the positioning pin 17 is merely pressed by the weak spring 24 via the lever 14, and can rotate extremely smoothly when the female mold 2 is rotated by the rotation mechanism 9, as will be described later. .

Next, as described above, a pair of clamp mechanisms 5,
When the clamping by No. 5 is completed, the clamping completion detection sensor 33 is activated. As a result, the rotation mechanism 9
The motor 11 and the rotary plate 10 that make up the motor move downward in the direction of the arrow D, and at the timing when the rotary plate 10 comes into contact with the female mold 2, the motor 11 rotates in the direction of the arrow C, and the electromagnetic Valve 31 opens. However, even if the solenoid valve 31 is opened, the piston 22 is retracted and remains in the state shown in FIG.
The piston 22 is cut off from the spring chamber 23 and the piston 22
It is only pressed by a weak spring 24.

On the other hand, when the motor 11 rotates, the female mold 2 also rotates in the direction of arrow C from the state shown in FIG. 17 is pushed out inside the pin insertion hole 16 to the left in the figure by the weak spring 24 via the piston 22 and the lever 14, and the notch 2
engages with C. At this time, the piston 22 is displaced to the left in the figure, and the lever 14 is also rotated in the direction of arrow E, resulting in the state shown in FIG. 2. Thus, when the piston 22 is displaced to the left, the air supply passages 25, 2
6, air is supplied into the spring chamber 23, and a large pressing force due to air pressure acts on the piston 22, pressing the positioning pin 17 with a strong force, causing the female mold 2 to move as indicated by the arrow. Even if a rotational force in the direction C is applied, the positioning pin 17 will not come off from the notch 2C. Therefore, transmission of rotational force to the rotating plate 10, which is rotated by the motor 11, is cut off by the clutch 13, and the female mold 2 is reliably positioned in the state shown in FIG. That will happen.

Next, when the lever 14 rotates in the direction of arrow E,
The positioning detection sensor 34 detects this and outputs a detection signal. As a result, the rotation of the motor 11 is stopped by the operation of the detection sensor 34, and the rotary plate 10 is lifted together with the motor 11 in the direction of arrow D'. On the other hand, due to the operation of the positioning detection sensor 34, each cylinder 8 moves to the arrow position after a predetermined delay time.
It is reduced in the direction B' and each clamp 7 is moved back to release the clamp. Further, the solenoid valve 31 is closed at the same timing as the operation of each cylinder 8, and the supply of air is stopped.

Through the above operations, the female mold 2 is positioned, and after the clamp is released, it will be conveyed again in the direction of arrow A by the conveyor 1.

FIG. 6 is a layout diagram showing the relationship between the female mold positioning device according to this embodiment and the index plate on the downstream side of the conveyor. Type 2, 2,...
It shows the index plates provided on both sides of the conveyor 1 for gripping. Concavely curved gripping surfaces 35A are formed on the index plate 35 at predetermined equal intervals, and by moving in the direction of arrow F at a predetermined timing, the female molds 2 that are sequentially conveyed are positioned. Grip it in the correct position. While holding the female mold 2 by the index plate 35, various operations such as supplying release paper, inserting the male mold, and punching the mold are performed.

In the embodiment, the cylinder mechanism 18 and the positioning pin 17 were described as being connected via the lever 14, but the piston 2 of the cylinder mechanism 18
2 and the positioning pin 17 may be arranged coaxially, or they may be constructed integrally. Further, although the weak spring 24 has been described as being provided within the cylinder mechanism 18, the weak spring 24 may be provided at a position where the positioning pin 17 can be biased against the outer periphery of the female mold 2 with a weak force. It may be provided separately outside. On the other hand, the respective detection sensors 32, 33, and 34 are not limited to the positions shown in the embodiment; for example, the clamp completion detection sensor 33 may be attached to the cylinder 8,
On the other hand, the positioning detection sensor 34 is connected to the cylinder mechanism 18.
It may be installed on.

[Effect of idea]

The female mold positioning device according to the present invention is as described in detail above, and since the female mold can be positioned reliably, it is possible to fully automate the cosmetic manufacturing line. . In addition, the cylinder mechanism uses a weak spring and air pressure, and when the female mold is rotated, the positioning pin is pressed by the pressing force of only the weak spring, so a small motor can be used. Furthermore, since the inner plate can be molded into various shapes, it can meet a variety of needs.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram of the female mold positioning device according to this embodiment, FIG. 2 is a plan view in the direction of the − arrow in FIG. 1, and FIG. 3 is a second diagram showing the state before positioning of the female mold. 4 is a longitudinal sectional view of the cylinder mechanism showing the state in which the piston is extended;
This figure is a longitudinal cross-sectional view of the cylinder mechanism showing a state in which the piston is similarly contracted, and FIG. 1... Conveyor, 2... Female mold, 2C... Notch, 3... Middle plate, 4... Powder, 5... Clamp mechanism, 6... Block, 7... Clamp, 8... Air Cylinder, 9... Rotating mechanism, 10... Rotating plate,
11... Motor, 14... Lever, 17... Positioning pin, 18... Cylinder mechanism, 20... Cylinder member, 22... Piston, 24... Weak spring,
25, 26... Air supply passage, 27, 28... Air discharge passage, 32... Female mold detection sensor, 33...
...Clamp completion detection sensor, 34...Positioning detection sensor.

Claims (1)

[Scope of utility model registration request] A female mold that is conveyed by a conveyor and has one or more notches on its outer periphery, a pair of clamp mechanisms that clamp the female mold on the conveyor at a predetermined position, and a female mold that is clamped by the clamp mechanism. A rotation mechanism for rotating the female mold, and a positioning device that is provided in at least one of the pair of clamp mechanisms so as to be freely retractable, and the distal end thereof is an engaging portion that can be engaged with a notch of the female mold. The female mold is clamped by a pin, a weak spring that constantly biases the positioning pin toward the outer periphery of the female mold so that its tip engages with a notch of the female mold, and the clamp mechanism. When the tip of the positioning pin engages with the notch of the female mold by the weak spring, the positioning pin is rotated by the rotation mechanism in the state that the positioning pin is A female mold positioning device consisting of a cylinder mechanism that presses the mold toward the notch with strong force.