JPS6331724A - Elastomer material automatic supplying device - Google Patents

Abstract

PURPOSE:To reduce man-hours, make a special refrigerator chamber unnecessary even when a material is adhesive such as EPDM, and simplify the constitution of the title device by a method wherein the belt-type material is cut by scissors interlocked with the feeding of the same, and the cut piece thereof is thrown into a hose through a chute to send it by a blower and receive it by a loading chute while the tip end of the loading chute is pivoted to throw it into the pot of a molder. CONSTITUTION:When a molder 5, for example, among a plurality of molders becomes mold opening condition after taking a molded form out, a material loading means 9 moves to the molder, and a loading chute 41 is pivoted by a predetermined angle to position an outlet port immediately above a pot 7. Subsequently, the forced feeding roller 16 of a material cutting means 3 is driven by a motor 26 to move a belt-type material 1a by a given length. According to this movement, scissors 15 are closed to cut the belt-type material 1a. The cut material 1b drops through a chute 17. A blower 35 is operated continuously, therefore, the cut material 16 is sent into the loading chute 41 of a material loading means 9 through the material sending hose 31 of a material transporting means 4 and, further, is loaded into the pot 7 of the molder 5.

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to cutting of a strip-shaped material made of elastomer.

The present invention relates to an automatic elastomer material supply device that can automatically transfer cut material to a compression molding machine and automatically load it into a material loading section.

<Prior Art> Conventionally, for example, when molding boots or the like using ethylene propylene rubber (EPDM), materials were supplied as follows.

(2) The strip-shaped material prepared by kneading and extrusion is cut into required lengths to obtain chip-shaped cut materials. At this time, since EPDM has adhesive properties, it is usually kept cooled in a cold storage room.

■The above-mentioned chip-shaped material was placed in a container by an operator, transported to the molding machine in the required amount, and then manually placed into the chute for the material loading section one by one.

<Problems to be Solved by the Invention> However, since the above material supply method is mostly performed manually/hetically, the number of man-hours increases and the material is
In cases of such stickiness, a special cold room was required.

Means for Solving the Problems> In order to solve the above problems, the present inventors made extensive efforts in development, and as a result, came up with an elastomer material automatic supply device having the following configuration.

A loading means for cutting an elastomer strip material, and a transfer molding machine or pressure 1i! It consists of a material transport means for transporting the material to the molding machine, and a material loading means for loading the transported material into the material loading section of the molding machine, and the loading means is provided with scissors interlocked with a driving member and above and below the scissors, respectively. The material feeding means consists of a material feeding hose connected to the lower end opening of the chute and a blower connected to the feeding side end of the material feeding hose, and the material loading means consists of a forced feeding roller and a chute. , a loading chute rotatably connected to the delivery side end of the material feeding hose, and a drive member for forcibly rotating the loading chute by a predetermined angle.

<Example> Hereinafter, one example of the present invention will be described based on the illustrated example.

FIG. 1 is an overall perspective view showing an example of application of the material supply device of the present invention, FIG. 2 is a partially sectional front view showing an example of the loading means of the present invention, and FIG. 3 is an example of the material loading means of the present invention. FIG. 4 is a sectional view taken along the line ■--■ in FIG. 3, and FIG. 5 is a sectional view of an example of a molding apparatus to which the present invention is applied in a mold open state.

Note that since Figure 1 is a conceptual diagram, detailed
There are some parts that do not necessarily match Figure 5.

3. Material loading means for cutting the elastomer strip material 1a. Material conveying means 4.1 for conveying the cut material 1b to the transfer molding machine 5! Cutting material 1'b sent
and a material loading means 9 for loading the material into the material loading section (pot) 7 of the molding machine 5.

The loading means 3 is provided with a cooling storage means 11 in this embodiment. This cooling storage means 11 includes a cooling water tank 1
2 and a cooler 13.

The material loading means 3 includes scissors 15 that are forcibly driven, forced feed rollers 16 disposed above and below the scissors 15, and a chute 17 serving as a material receiver. The scissors 15 have rear ends of the pair of operation parts connected to a tip of the slider 18 and a pin 19.
It is coupled to the tips of a pair of links 20 and 20 which are pivotally supported by a pair of links 20 and 20, and is opened and closed in response to the advance and retreat of the slider 18. At this time, the material of the scissors 15 is preferably ceramic 1l (ex, zirconia type) from the viewpoint of preventing adhesion of the elastomer material and durability of the blade. It is guided by the air cylinder 23 and can be moved back and forth. Further, a stopper plate 24 is coupled to the lower surface of the slider 18, and the stopper plate 24 moves the material receiver forward and backward into the chute 17 in response to the advance and retreat of the slider 18, that is, in response to the opening and closing of the scissors 15. do. In the material receiver, a photoelectric switch 25 is disposed at a height directly above the stopper plate 24 of the chute 17, and a signal from the photoelectric switch 25 is input to the control section to stop and stop the motor 26 that drives the first forced feed roller 16. The air cylinder 23 driven by the slider 18 is actuated.

Note that a large guide roller 28 is arranged between the cooling storage means 11 and the forced feed roller 16.
A guide bush 30 is disposed on the bottom surface of the top plate of the scissors 1, directly above the blade portion of the scissors 15.

The material conveyance means 4 includes a material feed hose 31 connected to the lower end opening of the chute 17, and a material feed hose 3.
1, and is connected to the inlet side end of the air pipe 32 (air outlet).
and a blower 35 equipped with a gate valve 33. An optical fiber switch 39 whose response is faster than other photoelectric switches is attached to the tip (feeding end) of the material feeding hose 31 for checking the passage of the material. In addition, material feed hose 3
The gate valve 33 is preferably one whose inner surface is coated with urethane to prevent material from sticking.
It is opened and closed by an air cylinder 34. The air cylinder 34 is operated by a signal from the photoelectric switch 25 via a control section. In addition, although not necessarily, in this embodiment, an air hose 37 is branched from the air pipe 32 of the Bucoa 35 and connected to the base of a molded product conveyance duct 36, which will be described later. It is considered possible.

The material loading means 9 includes a loading chute 41 rotatably connected to the delivery side end of the material feeding hose 31, and a drive member 43 for forcibly rotating the loading chute 41 by a predetermined angle. The driving member 43 includes a biocion 45 coaxially fixed to the base of the loading seat L-t 41, a rack 46 that engages with the pinion 45, and an air cylinder 47 that moves the rack 46 forward and backward. In this embodiment, the material loading means 9 is self-propelled with the following configuration so that material can be loaded into each pot 7 of a plurality of transfer molding machines 5.

That is, on the material loading means 9 side, a main sprocket 50 and sub sprockets 51 and 51 are attached to both sides of the main sprocket 50 via the lower pace 48 and frame 49, and the main sprocket 50 is rotated forward and backward by a motor 52. In addition, a guide catch 53 is attached. On the other hand, a roller latch 755 and a guide rail 56 are fixed to the front side of the molding machine 5.5.

Due to the engagement between the sprockets 50, 51 and the roller chain 55, and the engagement between the guide catch 53 and the guide rail 56, the material loading means 9 can move freely left and right along the front side of the molding machines 5, 5... ing. Further, the left and right movement of the loading means 9 is achieved by counting the round mold opening signal sent from each molding machine (usually by a molding time completion signal) in the control section and inputting a forward/reverse rotation signal to the motor 52. The material loading means 9 is stopped at a fixed position by a microswitch 5 installed in each molding machine 5.
4, the basic structure of the molding machine 5 is the same as that of a general transfer molding machine; an upper frame 61 and a lower frame 58 are connected by two tie rods 63, and a plunger 65 is fixed to the upper frame 61. Further, below the plunger 65 is a floating plate 66, and below the floating plate 66 is a movable plate 67, which is guided by a tie rod 63 and is slidably held. The pot 7 is fixed to the upper side of the floating plate 66, the upper mold 68 is fixed to the lower side, and the lower mold 69 is fixed to the movable platen 67. And in the center of the lower mold 69,
A core 72 connected to an ejector pin 71 is attached. Further, the movable platen 67 is connected to a piston rod 75 of a hydraulic cylinder 74 fixed to the lower frame 62. Upper frame 61, floating board 66, and floating board 66
and the movable platen 67 are each connected with a tie rod 63.6.
Coil springs 77 and 78 are attached via 3.

Further, this molding machine 5 includes a take-out jig 8 which is rotated by a rotary actuator 81 operated by air.
2 is equipped. This actuator 81 is moved up and down by an air cylinder 84. And the take-out jig 82.

For example, as described in Japanese Patent Publication No. 58-35461, compressed air is applied to the core 72 while the molded product 2 is vacuum-adsorbed.
The core 72 is caused to flow between the molded product 2 and the molded product 2, and a repulsive force is generated between the molded product 2 and the core 72 to cause the player to leave the base.

Furthermore, a chute 85 is formed as a molded product receiver at the forward rotating position of the take-out jig 82 in each molding machine 5 of the molded product conveyance duct 36. This molded product receiver is chute 8
5 is equipped with a photoelectric switch 86 for checking whether the product has fallen, and if the product does not fall, a warning of poor fall is issued by means of a lamp display or the like.

Next, how the above embodiment is used will be explained.

The molding machine 5 in the mold open state after taking out the molded product is
The control unit searches for the signal sent from the molding machine 5 and inputs a control signal to the self-propelled motor 52 so that the material loading means 9 moves to the molding machine 5.

When the material loading means 9 moves to the molding machine 5 and stops at the fixed position, the control section receives a signal from the microswitch 54, operates the air cylinder 47, and loads the material via the rack 46 and pinion 45. The outlet of the loading chute 41 is positioned directly above the pot 7 by rotating the chute 41 by a predetermined angle.

Next, the motor 26 of the forced feed roller 16 of the material loading means 3
is driven to move the strip material 1a by a certain length (that is, until it touches the stopper plate 24 xB).Then, the controller receives an off signal from the photoelectric switch 25 and turns the air cylinder 23
is activated, and the slider 18 retreats to move the links 20 and 2.
0, the scissors 15 are closed and the strip material 1a is cut.

Since the stopper plate 24 also retreats during the recirculation, the chip-shaped cut material 11b falls within the chute 17.

At this time, the control section receives an ON signal from the photoelectric switch 25, operates the air cylinder 34, and opens the gate valve 33. Since the blower 35 is operated continuously, the cutting material 1
b passes through the material feeding hose 31 of the material conveying means 4, is fed into the loading chute 41 of the material loading means 9, and is further loaded into the pot 7 of the molding machine 5 using an optical fiber switch. 39, the air cylinder 47 is actuated by a signal from the control section, and the loading chute 41 escapes from above the floating platen 66 and returns to its normal position.Then, the hydraulic cylinder 74 is actuated, and the movable platen 6
7 rises and the mold is closed (pressurized state). After maintaining this state for a certain period of time (usually 2 to 3 minutes), the hydraulic cylinder 74 is activated and the movable platen 67 is lowered to open the mold. The molded product 2 is ejected while being held by the core 72. Then, the take-out jig JAc82 is rotated to a position directly above the core 72 by the operation of the low reactuator 81, lowered by the operation of the air cylinder 83, and then, after releasing the mold, ascends to take out the molded product 2. The actuator 81 is operated to return to the original position, and the molded product receiver is dropped into the chute 85.

The molded product 2 that has fallen into the molded product receiver chute 85 is transported inside the molded product transport duct 36 by the air constantly pumped from the blower 35, and is transferred to a container placed at the end position of the molded product transport duct 36. etc. will be collected.

By repeating the above, the strip material 1a is cut and automatically supplied to a plurality of parallel molding machines 5, and the molded products 2 are also automatically taken out and automatically collected.

Of course, the apparatus of the present invention can be applied when the molding machine is a compression molding machine or when there is only one molding machine.

Further, the device of the present invention may be implemented in various forms without departing from the scope of the claims.

For example, if the elastomer material does not have adhesive properties,
Cooling storage means 11 is not required. Also.

As in the above usage mode, the loading chute 41 is connected to the pot 7J:
The gate valve 33 is not necessary when cutting the material in a state in which the material is rotated.On the contrary, when the loading chute 41 is rotated onto the pot 7 after cutting the material, the gate valve Although the valve 33 is necessary, the gate valve 33 may be arranged behind the material receiver chute 17 (provided that the material does not have adhesive properties).Furthermore, the driving member of the loading chute 41 can also be arranged in the rack or the chute 17. The method is not limited to the pinion method, and may of course be a nodule clear cumulator similar to the take-out jig. Also, the belt-shaped rubber material may be directly supplied from the extruder via an accumulator or the like.

<Operations and Effects of the Invention> The automatic elastomer material feeding device of the present invention has a material loading means consisting of forcibly driven scissors, forced feed rollers disposed above and below the scissors, and a chute as a material receiver; A material conveyance means comprising a material feed hose connected to the chute and a blower connected to the insertion side end of the material feed hose; and a loading chute rotatably connected to the delivery side end of the material feed hose; The material loading means is composed of a drive member that forcibly rotates the loading chute at a predetermined angle, so that it can cut elastomer strip material, transfer the cut material, and convey it to the compression molding machine.
Furthermore, the material loading section can be loaded automatically without human intervention. Further, even if the elastomer material has adhesive properties such as EPDM, large-scale equipment such as a cold storage room is not required, and a cooling water tank equipped with a simple roller is sufficient.

[Brief explanation of the drawing]

FIG. 1 is an overall perspective view showing an example of application of the material supply device of the present invention, FIG. 2 is a partially sectional front view showing an example of the loading means of the present invention, and FIG. 3 is an example of the loading means of the present invention. Front view,
FIG. 4 is an end view taken along the line I'VIV in FIG. 3, and FIG. 5 is a sectional view of an example of the molding apparatus to which the present invention is applied in a mold open state. 1a... Band material, ib... Cutting material, 3... Material loading means, 4... Material conveying means, 5... (Transfer) molding machine, 7... Pot (material loading section) , 9... Material loading means, 15... Scissors, 16... Forced feed roller, 17... Material receiver is chute. 31... Material feed hose, 35... Proar, 41... Loading chute, 43... Drive member, 45... Pinion. 46...Rack.

Claims (1)

[Claims] A material cutting means for cutting an elastomer strip material, a material conveying means for conveying the cut material to a transfer molding machine or a compression molding machine, and a material loading means for the conveyed cut material to the molding machine. The material cutting means includes forcibly driven scissors, and a forced feed roller and a material receiving chute disposed above and below the scissors, respectively, and the material conveying means includes: It consists of a material feeding hose connected to the material receiving chute and a blower connected to the feeding side end of the material feeding hose, and the material loading means is rotatably connected to the feeding side end of the material feeding hose. An elastomer material automatic supply device comprising: a connected loading chute; and a driving member for forcibly rotating the loading chute through a predetermined angle.