JPH0655713U - Multi-stage press machine - Google Patents

Abstract

(57) [Summary] [Structure] In the multi-stage press machine 10, pulley pairs 2 and 3 are arranged outside the press-in side and outside of the press machine, and the belt is arranged.
4 through the space between the heating plates 11 of each stage of the press machine, and an appropriate number of belt conveyors 1 are provided for each stage of the multi-stage press machine and independently or together. Become. Preferably, a loader 8 and an unloader 9 which are different belt conveyors are provided on the loading side and the unloading side of the press machine so that the article A to be processed can be transferred to and from the belt conveyor 1. [Effect] A plurality of products to be processed (plywood or veneer sheet) can be arranged on each of the hot plates so that the pressing pressure load becomes equal, and the arrangement can be performed quickly and easily without manual work. Further, the placement work can be safely carried out without fear of causing a crushing accident of hands, fingers and the like.
Therefore, it is very suitable for a process in which a plurality of products to be processed are arranged side by side on a single-stage hot platen and heat-pressed together.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a multi-stage press machine used for hot-pressing plywood, veneer sheet, metal plate (aluminum plate, etc.), synthetic resin plate and other flat materials.

[0002]

[Prior art]

 Generally, a multi-stage press is equipped with a loader / unloader for automatic loading and unloading of workpieces such as plywood. In the past, many multi-stage press machines of this type were equipped with push bars that were inserted between the heating plates at each stage of the press machine while pushing the plywood as the feeding mechanism of the loader. It was

[0003]

[Problems to be solved by the device]

 However, in the conventional multi-stage press, the push bar has a configuration suitable for inserting a relatively large-area plywood into the space between the heating plates of each stage. Insert two or a few relatively small-area plywood or thin veneer sheets into the space between the heating plates, and place them on the heating plate at a position where the pressing pressure is evenly applied. Placing was a difficult configuration, even with improvements.

That is, in the conventional multi-stage press, a plurality of products to be processed (plywood, single-sheet, etc.) are arranged on a single-stage hot platen so that the pressure load is even, and the hot pressing is performed together. It had the drawback that it was not suitable for the process of tightening.

For this reason, conventionally, a method of manually arranging a plurality of plywood sheets, a single plate sheet, or the like in each of the hot plates at each stage as quickly as possible, and then shifting to hot pressing has been adopted. .

However, since the multi-stage press machine is a device having a large number of stages, usually about 5 to about 50, the manual method requires a considerably long time from the start to the end of the arrangement of the workpieces. However, there is a problem that the work speed is low. Veneer sheets, especially thin-walled products, are easily affected by heat, so if you cannot move to the hot pressing stage quickly, the veneer sheets will be deformed or deteriorated, resulting in product defects. It will be. Therefore, there has been a particular need for improvement in the processing of such products.

In addition, it is difficult to manually place a plurality of products to be processed in each hot platen in each stage accurately at a predetermined position on the hot platen. However, there is a problem that defective products with insufficient or excessive pressurization are likely to be finished.

Particularly, in the multi-stage press machine, the space between a heating plate of one stage and the heating plate of the next stage is usually about 5 cm, and human hands and arms are inserted into the space between the heating plates with a sufficient margin. Since it is a structure that cannot be processed, it was very difficult to ensure the accuracy of the arrangement of the processed products.

Further, actually inserting the human hand and arm into the space between the heating plates of each stage of the press machine is a dangerous work that may cause a crushing accident of the hand, fingers, etc. There was also a problem in terms of safety.

The present invention has been made in consideration of such circumstances, and an object of the present invention is to equalize the load of pressing pressure on a plurality of plywood sheets, single sheet sheets, etc. for each hot platen of each stage. It is an object of the present invention to provide a multi-stage press machine that can be arranged as described above, can be arranged quickly without manual work, and can perform the work safely.

[0011]

[Means for Solving the Problems]

 The present invention achieves the above-mentioned object, and in a multi-stage press, a pair of pulleys is arranged outside the loading side and outside of the pressing machine, and a belt is provided at each stage of the pressing machine. An appropriate number of belt conveyors should be provided for each stage of the multi-stage press machine, individually or together, using sensors etc. so as to pass through the space between the heating plates of About the press machine.

That is, the multi-stage press machine according to the present invention is equipped with a desired number of belt conveyors at each stage, and the belt conveyor has one pulley on the side where the product to be processed is carried. The other pulley is installed outside, and the other pulley is installed on the outside where the article to be processed is carried out, and the belt is wound around these pulley pairs and passed through the space between the heating plates.

Conventionally, a belt conveyor is provided in a space between a hot platen on a stage of a press machine and an adjacent hot platen, and each time the press is performed, the belt is also hot-pressed at the same time for hot-pressing. Even the person skilled in the art had no idea how to do it.

By adopting a special belt having high heat resistance as described below, the present inventor puts this belt between the hot plates of each stage of the press machine to obtain a processed product such as a single plate sheet. We have found that even if we repeatedly perform the hot pressing process together, we can satisfactorily end up, and completed this proposal here.

In the present invention, the belt conveyors installed between the heating plates of the respective stages may be independently operated by individual motors or the like, and a mechanism for interlocking the conveyors may be used. It may be possible to work together.

The belt of the belt conveyor is very tough because it is usually used under a heating and pressing condition of about 100 to about 150 ° C. × about 5 to about 15 kg / cm ² × about 1 to about 10 minutes. In addition, the material must have high heat resistance. From this point of view, belts are made of glass fiber, carbon fiber or aromatic polyamide fiber (particularly aramid fiber), and in particular, short fiber fabric, or heat-resistant rubber, silicone resin or fluorine on such fabric. Those consisting of fabrics which are surface-coated or impregnated with resin are suitable.

Further, the belt of the belt conveyor is required to be such that it does not adhere to the surface of the hot platen even if it is repeatedly heated and pressed. Therefore, it is more preferable that the belt has a release agent applied on its surface to prevent heat adhesion. Examples of the release agent that can be used in the present invention include silicone resin and fluororesin.

On the other hand, the other elements of the belt conveyor, particularly the pair of pulleys and the motor, are not directly placed under the above-mentioned heating and pressing conditions, and thus may have a conventional general structure.

Further, in the present invention, the structure of the multi-stage press machine is not particularly problematic, and any multi-stage press machine having a conventionally known or used structure can be applied to the present invention.

Further, in the present invention, in the multi-stage press machine of a more preferable embodiment, the belt conveyor further comprises a control means that enables the belt to be fed by a constant length, so that the article to be processed can be carried into the press machine. It is designed so that it can be accurately carried from a side to a position where it should be clamped.

The control means is arbitrary as long as it can achieve this purpose. For example, an optical mark (reflection mark) provided at a predetermined interval on the belt, an optical sensor sensitive to this, An example is a combination of control devices that control the operation of the belt conveyor based on the information read by the sensor.

Further, in the present invention, in the multi-stage press machine of a more preferable mode, the belt conveyor is further provided with a tension adjusting means for suppressing the meandering of the belt, so that stable belt running can be always ensured. It is the one.

As the tension adjusting means, for example, in one pulley of the belt conveyor, two air cylinders or springs are arranged so as to press the left and right ends of the pulley independently of each other. Some of them are designed so that the right side part can be tensioned respectively.

Further, in the multistage type press machine of a more preferable embodiment in the present invention, a loader composed of another belt conveyor is provided on the loading side of the press machine, and if necessary, an unloader composed of another belt conveyor is installed in the press machine. It is equipped on the unloading side so that the processed products can be transferred to and from the belt conveyor between the heating plates. Preferably, the loader and the unloader used are multi-stage belt conveyors having the same number of stages as the number of belt conveyors between the heating plates. By installing the loader and the unloader together, it is possible to carry in and carry out the products to be processed at each stage at the same time. Therefore, it is possible to arrange the products to be treated on the hot platen at all stages.

[0025]

[Action]

 In the present invention, by operating the belt conveyor between the heating plates, the object to be processed can be quickly carried from the outside of the press to a predetermined position between the heating plates without the need to insert hands or fingers between the heating plates. You can put it in. Therefore, the arrangement of the processed products before heating and pressing becomes very quick and easy, and the arrangement work becomes safe.

If the above control means is provided, the accuracy of the arrangement of the article to be treated is improved, and if the above tension adjustment means is provided, the operation stability of the belt conveyor is improved, and If a loader and an unloader are provided, the process of loading, arranging, and unloading the processed products will proceed in a continuous flow, dramatically improving the workability of the entire hot pressing process.

Further, when the belt conveyor is provided with the belt made of the above material, the durability against the heating and pressing treatment is improved, and the hot press can be continuously processed for a long time without any problem. .

[0028]

【Example】

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

As shown in FIG. 1, in addition to the basic structure of the conventionally used multi-stage press machine, the multi-stage press machine 10 of the embodiment has a desired number of belt conveyors 1 ... The belt conveyor 1 is provided with one pulley 2 on the outside of the side on which the article to be processed is loaded, and the other pulley 3 on the outside of the side on which the article to be processed is unloaded, and The belt 4 is wound around the pair of pulleys 2 and 3 and is passed through the space between the heating plate 11 and the adjacent heating plate 11.

The belt conveyors 1 provided between the heating plates 11 of each stage can be independently operated by the individual motors 5.

The belt 4 of the belt conveyor 1 is a cloth made of short fibers of glass fiber, carbon fiber or aromatic polyamide fiber (particularly aramid fiber), or has a heat resistant rubber, a silicone resin or a fluororesin on the surface thereof. Made of coated or impregnated fabric, it is strong and heat resistant.

Further, the belt 4 is coated with a release agent such as a silicone resin or a fluororesin on its surface to prevent heat adhesion. The pulley pairs 2 and 3 and the motor 5 have a conventional general configuration.

The belt conveyor 1 of the embodiment is further provided with a control unit near the pulley 2 which enables belt feeding of a constant length. The means is to operate the belt conveyor 1 based on the reflection marks (not shown) on the belt 4 provided at predetermined intervals, the optical sensor 6 sensitive to the marks, and the information read by the sensor 6. It is composed of a combination of control devices (not shown) for controlling. Therefore, it is possible to accurately carry the object A to be processed from the carry-in side of the press machine 10 to a position where it should be clamped.

Further, the belt conveyor 1 of the present embodiment is further provided with a tension adjusting means for suppressing the meandering of the belt in the one pulley 3. In this means, two air cylinders are arranged so as to press the left and right ends of the pulley 3 independently of each other so that the left side and the right side of the belt 4 can be respectively tensioned. Therefore, it is possible to always ensure stable belt running.

Further, in the multi-stage press machine of this embodiment, a loader 8 composed of another belt conveyor is installed on the loading side of the press machine 10, and an unloader 9 composed of another belt conveyor is carried out of the press machine 10. It is provided on the side so that the product A to be processed can be transferred between the hot platen and the belt conveyor 1. Therefore, the articles A to be processed can be loaded and unloaded at the same time in each stage, and the articles A to be processed can be arranged on the hot platen in all stages.

Then, the operation of each belt conveyor 1 ... between the heating plates 11 ... Is started, and the object A to be processed is moved from the loading side of the press machine 10 to the space between the heating plates 11 and 11. By inserting them one after another, it can be quickly carried to the predetermined position between the heating plates 11 ...

Therefore, even if the shape and size of the article to be processed A are large and small as shown in FIG. 1, the arrangement can be performed very quickly and easily. Moreover, the work is safe without the need to insert hands or fingers between the heating plates 11 and 11. In particular, since the control means such as the sensor 6 is provided, the article A to be processed can be accurately arranged at a predetermined position between the heating plates.

After the heating and pressing process is completed, the processed product A is carried out from the carry-out side of the press machine 10.

In this embodiment, by operating the loader 8 and the unloader 9 together, the workpiece A is mechanically transferred from the conveyor of the loader 8 to the hot plate of the press machine 1 without manual work. 11 is transferred onto the conveyor 1 between the heating plate 11 and the heating plate 11, and the product A is unloaded onto the conveyor of the unloader 9 from the conveyor 1 between the heating plates 11 ... It was possible to carry out the loading, arranging, and unloading in a series of flows completely automatically.

Further, since the belt 4 of the belt conveyor 1 has high durability, it was possible to perform long-time continuous hot pressing without any problem.

The pressing machine of the embodiment shown in FIG. 1 is provided with guide rollers 12 near the end of the heating plate 11 on each of the carry-in side and the carry-out side, and the guide action of the guide roller 12 carries in the product A to be carried in. Further, although the carry-out is made smoother, instead of the roller 12, a guide plate having a structure extending out from the end of the heating plate may be provided.

For example, like the press machine of the modification shown in FIG. 2, the guide plate 13 having the above structure may be provided on each of the carry-in side and the carry-out side, or the press of the modification shown in FIG. Like the machine, the guide roller 12 may be provided on the carry-in side, and the guide plate 13 having the above structure may be provided on the carry-out side.

[0043]

[Effect of device]

 As can be seen from the above description, the present invention provides the following effects.

It is possible to arrange a plurality of products to be processed in each hot platen of each stage so that the load of the press pressure is equalized. Therefore, defective products with insufficient pressurization or excessive pressurization are significantly generated. Decrease to.

It is possible to easily arrange the products to be processed in a very short time from the start to the end without manual work. Even if the product to be processed is thin plywood, veneer sheet, etc., it is possible to quickly move to the hot pressing stage with little influence of heat, resulting in product defects such as deformation or deterioration of veneer sheet. Outbreak is reduced.

The work for arranging the products to be processed can be safely carried out without fear of crushing accidents such as hands and fingers, and the work safety is improved.

Therefore, a multi-stage pre-press which is very suitable for processing, in which a plurality of products to be processed (plywood, veneer sheets, etc.) are arranged in a predetermined position on a single-stage hot platen and heat-pressed together Machine is provided.

Further, by providing the control means, it becomes possible to more accurately arrange the article to be processed at a predetermined position on the hot platen, and the accuracy of the arrangement is improved.

Further, by providing the tension adjusting means, the operation stability of the belt conveyor is improved and the continuous processing is facilitated.

Further, by providing a loader and an unloader, it is possible to carry in, arrange, and carry out the object to be processed in a series of flows, and the work efficiency of hot pressing is dramatically improved.

Furthermore, by adopting a belt material that is tough and has high heat resistance, the durability of the belt is improved and long-time continuous hot pressing can be performed without any problems.

[Brief description of drawings]

FIG. 1 is a schematic view showing a multi-stage press machine according to an embodiment of the present invention.

FIG. 2 is a schematic view showing a modified multi-stage press machine.

FIG. 3 is a schematic diagram showing another modified multi-stage press machine.

[Explanation of symbols]

 1 Belt Conveyor 2 Pulley 3 Pulley 4 Belt 5 Motor 6 Optical Sensor 7 Tension Adjusting Means 8 Loader 9 Unloader 10 Multi-stage Press Machine 11 Hot Plate 12 Guide Roller 13 Guide Plate A Workpiece

Claims (6)

[Scope of utility model registration request] 1. A suitable number of belt conveyors, wherein a pair of pulleys are arranged on the outside of the loading side and the outside of the loading side of a multi-stage press, and a belt is passed through the space between the heating plates of each stage of the press. Is provided for each stage of the multi-stage press machine so as to operate independently or together. 2. The belt of the belt conveyor is made of glass fiber, carbon fiber or aromatic polyamide fiber (particularly aramid fiber), especially short fiber, or a cloth made of heat resistant rubber, silicone resin or fluororesin. The multi-stage press according to claim 1, wherein the multi-stage press comprises surface-coated or impregnated fabric. 3. The multi-stage press machine according to claim 2, wherein the belt of the belt conveyer has a surface coated with a release agent. 4. The belt according to claim 1, wherein a loader composed of another belt conveyor is provided on the loading side of the multi-stage press, and an unloader composed of a further belt conveyor is installed on the unloading side of the multi-stage press, if necessary. The multi-stage press machine according to any one of claims 1 to 3, wherein the multi-stage press machine is provided so as to transfer an object to be processed to and from a conveyor. 5. The belt conveyor according to claim 1, further comprising a control means capable of feeding the belt of a constant length. The multi-stage press machine described in the item. 6. The belt conveyor according to claim 1, further comprising tension adjusting means for suppressing meandering of the belt. Multi-stage press machine.