KR20000021230U - Apparatus molding synthetic resin plate by pressure using compressed fluid - Google Patents

Abstract

The present invention is a molding apparatus for molding a product by inducing pressure deformation by a high-pressure compression fluid to a plate-shaped synthetic resin material of a predetermined thickness in a sealed mold, the storage chamber 71 for loading the synthetic resin material 30 in a multi-layer And a lift motor 72 for raising the synthetic resin material 30 stacked in the storage chamber 71 and a chain or a band connected to the lift motor 72 to move according to the operation of the lift motor 72. Alternatively, the jack 73 for descending, the synthetic resin material automatic supply unit 70 which is installed at one end of the jack 73 to be a pedestal 74 for stacking the synthetic resin material 30, and the automatic supply unit 70 Adsorption plate 82 for adsorbing synthetic resin material 30 supplied upward from pneumatically, transport means for transporting the adsorption plate 82 at a constant distance, and supporter 81 for supporting the adsorption plate 82. Automatic grip part 80 consisting of the The pallet 60 transferred from the automatic grip unit 80 is composed of a preheating unit 200, a molding unit 300, a punching unit 400, and an inlet unit 100 for transferring the takeout unit 600.

Description

Press molding device by compressed fluid of synthetic resin plate {APPARATUS MOLDING SYNTHETIC RESIN PLATE BY PRESSURE USING COMPRESSED FLUID}

The present invention relates to a molding apparatus for molding a product by inducing a pressure deformation by a high-pressure compressed fluid to a plate-shaped synthetic resin material of a predetermined thickness in a closed mold. More specifically, it consists of an automated molding apparatus, that is, a consistent system consisting of an automatic supplying part of a synthetic resin material, an automatic grip part, an inlet part, a preheating part, a molding part, a punching part, and an ejecting part, and plastic deformation processing of a material of a plate-shaped synthetic resin having a certain thickness. The present invention relates to a press molding apparatus using a pressurized fluid of a synthetic resin plate material which can obtain a molded product having the same shape as that of the base mold by applying a high pressure fluid to the upper part of the synthetic resin material while maintaining the temperature.

In particular, the synthetic resin having a predetermined thickness refers to a plate-shaped thermoplastic material capable of plastic deformation processing by the heat of the preheating part, and considering the plastic deformation temperature and thermosetting temperature according to the material of the thermoplastic material, and the pressurized fluid supplied to the molding part. By combining conditions such as pressure, it is possible to obtain various types of molded products using only the base mold.

In general, a method for manufacturing a thin plastic molded article that can be molded by plastic deformation processing of thermoplastic materials is disclosed in Korean Patent Publication No. 95-12869, for example, a printed circuit board or other distribution board. To apply a dry film suitable for the appearance of irregular surfaces such as the surface. It is formed by applying heat, vibration and mechanical pressure to a printed circuit board or distributor board with a dry film loosely applied to at least one of its surfaces, such as pieces that are cut apart and cut within the scope of the printed circuit board prior to application. It is to be done.

For example, as shown in FIGS. 1A to 1C, the electronic products 10 made of synthetic resin are formed by the upper and lower housings 1 and 2 by separate forming means, respectively. By means of the printing of the identification display lamp such as the display window, and the button substrate (3) which can be connected to the upper housing (1) and exposed to the outside to ground with the electronic elements such as the substrate in the housing is formed separately It is formed to be coupled to.

In order to mold the upper and lower housings (1) and (2) as described above, each of the separate molding process must be carried out, and at the same time, a plurality of printing processes according to the height of the uneven portion, and the button substrate combined with the upper housing (1) (3) through separate molding means, each of the molded products are combined to be assembled in the assembly line, but due to the various processes as described above, the production cost becomes a factor that is expensive, Since the mold is required, the mold manufacturing cost is expensive, and the mold manufacturing period is long, so that it is not possible to adequately cope with urgent demand and production of small quantity of various kinds, and also because the accessories of each molded product must be high, the defect rate cannot be lowered. Problems have been caused.

In addition, since the button 5 of the button substrate 3 passes through the button through-hole 4 of the upper housing 1 and is assembled to be exposed to the outside, the button through the button housing 1 can be exposed. Due to the clearance gap for assembling between the hole 4 and the button 5 of the button substrate 3, the outside of the molded product is not beautiful due to the occurrence of a gap, and it is easy to penetrate foreign matter through the gap. In addition, when water or the like is inadvertently introduced, there is a problem such that the electronic elements inside the electronic product 10 are lost due to a short circuit and can not be used.

The present invention is to solve the above problems, the base mold in a plastic sheet material capable of plastic deformation processing under the environment in which the conditions such as plastic deformation temperature, thermosetting temperature and pressure of the pressurized fluid are harmonized according to the characteristics of the plastic material The system is made up of inlet, preheating, forming, punching and ejecting parts to obtain a plastic deformation processed product by using only the components, and the components consist of an automated system which is movable horizontally. The system consists of a roll or conveyor controlled by a controller, which is a straight path constituting a caterpillar driven to be connected to each other, and is configured to move a pallet of frame on the roll or conveyor. The pallet is loaded with the material to be molded and It is intended to provide pressurization by pressurized fluid of a plate-shaped synthetic resin which can finally obtain molded products carried out through the takeout part after each component part.

In order to achieve the above object, the present invention is an automated transfer system consisting of a lead portion, preheating portion, molding portion, punching portion and take-out portion and horizontally movable, the storage compartment for stacking the synthetic resin material in multiple layers; A jack for raising or lowering the motor for raising the synthetic resin material stacked in the storage chamber and connected to a chain or a band to the motor, and installed at one end of the jack, the synthetic resin material Synthetic resin material automatic supply unit serving as a pedestal for stacking the support, adsorption plate for adsorbing the synthetic resin material up-supply from the automatic supply unit by pneumatic, transfer means for transporting the adsorption plate at a constant distance, and supporting the adsorption plate An automatic grip portion made of a support for the support and a pallet conveyed from the automatic grip portion It is a basic feature of the device according to the present invention that it is composed of a preheating part, a molding part, a punching part and an inlet part for conveying to a takeout part.

In addition, the inlet is a pair of sprockets rotated by receiving power from a drive motor, a chain for connecting the pair of sprockets, a guide sprocket for adjusting the deflection and tension of the chain, between the sprocket and the guide sprocket A roller or a roller installed in the roller holder, a roller holding bracket for supporting the roller or the conveyor, and a first cylinder and a second cylinder for assisting the pallet transfer by raising or lowering the roller holding bracket to a predetermined height. .

Figure 1a is a perspective view of the combined molded article,

Figure 1b is a perspective view of the combined separation of the upper housing and the button member in Figure 1a,

1C is an exploded cross-sectional view of FIG. 1B.

2 is a plan view of a molding apparatus of an embodiment according to the present invention,

3a is a front view of a state in which the base mold of the molding part is lowered in the molding apparatus of the embodiment according to the present invention;

Figure 3b is a side view of the base mold is lowered in the molding unit of the molding apparatus of the embodiment according to the present invention,

4A is a front view of a state in which the base mold of the molding part is raised in the molding apparatus of the embodiment according to the present invention;

4B is a side view of a state in which the base mold of the molding part is raised in the molding apparatus of the embodiment according to the present invention;

Figure 5a is an enlarged conceptual view of the main portion of the base mold is lowered in the molding unit of the molding apparatus of the embodiment according to the present invention,

Figure 5b is an enlarged conceptual view of the main portion of the base mold of the forming portion in the forming apparatus of the embodiment according to the present invention is raised;

Figure 6a is a view showing a pallet transfer state of the molding apparatus according to the present invention,

6B is an enlarged view illustrating a main part of a pallet loaded with a synthetic resin material from the present invention automatic supply part to a inlet part;

6c is an enlarged view showing a state in which a pallet is placed on the raised roller by raising the roller holding bracket and the roller by the cylinder after the pallet of the present invention is transferred onto the roller;

Figure 7a, 7b, 7c, 7d is an exemplary cross-sectional view of the molded article molded by the molding apparatus of the present invention.

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 to 3a and 3b of the present invention, the molding apparatus of the present invention is a synthetic resin material automatic supply unit 70, automatic grip unit 80, inlet unit 100, preheating unit 200, molding unit ( 300 and the extraction unit 600.

In addition to this, as shown in FIGS. 5A and 5B, the punching part 400 and the cutting part 500 may be provided.

The components consist of an automated conveying system which is movable horizontally, which consists of a horizontal straight path consisting of a roll 40 or a conveyor 50.

As shown in FIG. 2A, the synthetic resin material automatic supply unit 70 raises the storage chamber 71 for loading the synthetic resin material 30 in multiple layers, and the synthetic resin material 30 stacked in the storage chamber 71. A rising motor 72 and a jack 73 connected to a chain or a band to the rising motor 72 for raising or lowering according to the operation of the rising motor, and installed at one end of the jack 73 and the synthetic resin. It is composed of a pedestal 74 for laminating the material 30.

At this time, hydraulic or pneumatic or the like can be used as a means for raising the jack 73.

In addition, the automatic grip portion 80 is a support 81, the adsorption plate 82 for adsorbing the synthetic resin material 30 by pneumatic hanging on the support 81 and the conveying means for transporting it to a certain distance (not shown) Not configured).

In addition, the automated transport system for transferring the synthetic resin material 30 transferred from the automatic grip unit 80 toward the preheating unit 200 is composed of a roll 40 or a conveyor 50, which is an endless track interlocked with each other. The roll 40 or the conveyor 50 is configured to be a moving path of a plurality of pallets 60 to mount the synthetic resin material 30 without flow.

6A to 6C, the inlet 100 includes a pair of sprockets 120 and 120 ′ that rotate by receiving power from the driving motor 110 and the pair of sprockets 120. Chains 121 for connecting 120 ', guide sprockets 130 and 130' for adjusting deflection and tension of the chains 121, sprockets 120 and guide sprockets 130 Raising the roller 40 or the conveyor 50, the roll holding bracket 140 for supporting the roll 40 or the conveyor 50, and the roll holding bracket 140 are raised to a constant height or It is composed of the first and second cylinders 150, 160 to assist the transfer of the pallet 60 by lowering.

For example, as shown in FIG. 6B, a pallet for gripping and conveying the synthetic resin material 30 received from the automatic grip part 80, that is, the synthetic resin material 30 or the modified molded product 20 to be deformed, respectively ( When 60 is positioned on the conveyor 50 or the roll 40, the first and second cylinders 150 and 160 are raised as shown in FIG. 6C, and the roll retaining bracket 140 is raised by the lift. At the same time as the rise of the roll 40 is raised and the pallet 60 is mounted on the raised roll 40 is transferred to the preheating unit 200.

At this time, all the pallets 60 are installed to move and are arranged at a predetermined interval from each other, and form a substantially rectangular plate shape, positioning on the pallet 60 so that the synthetic resin material 30 can be gripped and moved without flow. Fixing means such as pins are provided.

The interval between the pallets 60 is located in each of the components is arranged in consideration of the process time, such as the operation is performed.

And, the pallet 60 can be moved by a separate clamp means to help the movement of the exact position on the roll 40 and the conveyor 50, in addition to the position control that can sense the position to move The sensor can be installed. In addition, it is also possible to additionally install a separate setting means for moving the pallet 60 on the conveyor 50 in the roll 40 to enable accurate position movement.

The synthetic resin material 30 or the modified molded product 20 to be deformed, respectively, is mounted on the pallet 60 and the path to be transported is configured by the automated roll 40 or the conveyor 50, and the inlet part 100 is provided. The preheating unit 200, the molding unit 300, and the extraction unit 600 are sequentially moved.

The inlet unit 100 can be manually mounted on the pallet 60, the synthetic resin material 30, and installed as a separate automated supply equipment, moving magazine device (not shown) as necessary to the system configuration It may optionally be included.

The synthetic resin material 30 mounted on the pallet 60 is important to be formed by a high-pressure fluid under a state maintained at a plastic deformation processing temperature. For this purpose, the synthetic resin material 30 is approximately 30 to 40 ° C. It is preferable to maintain, and depending on the physical properties of the synthetic resin material 30 may need to be maintained at 60 ℃ or more, it is not limited to the preheat temperature presented.

The synthetic resin material 30 on the pallet 60 is heated starting from preheating in the preheater 200.

As shown in FIG. 2, the preheating unit 200 is disposed at a predetermined distance above the track of the conveyor 50, but two are shown in the drawing, but the plastic deformation starting temperature of the synthetic resin material 30 is high. In this case, a plurality of preheating units 200 may be provided, and the heating apparatus may be configured to be operated individually or individually by a method such as infrared irradiation and general heating means.

In addition, a sensor for detecting ambient temperature and surface temperature is installed in the preheating unit 200, and a height adjusting means for adjusting the heat irradiation distance is provided in the preheating unit 200 in relation to the traveling trajectory of the conveyor 50. In addition, the infrared irradiation device and the heat transfer means may be disposed at appropriate intervals on the side of the traveling track of the pallet 60.

In addition, the synthetic resin material 30 preheated at a given temperature in the preheater 200 moves along the roll 40 to reach the molding part 300, and then press molding process is started after the correct position setting.

3A to 4B, the molding part 300 includes a driving device 340 for pressing and a base mold table 320 in which a compression molding process is performed by the driving device 340.

The press is held by a cover mold table 310, a base mold table 320 and four pillars 350 fixed vertically. Each of the tables 310 and 320 is formed in a substantially rectangular shape in a plan view as shown in FIG.

The cover mold table 310 is fixedly arranged and can be moved vertically within the operating range for the purpose of adjustment, and the base mold table 320 can be positioned and moved vertically along the column 350. Do. The structure of the driving device 340 for position movement of the base mold table 320 is shown in detail in FIGS. 3A to 4B.

3A and 3B show a state in which the base mold table 320 is moved downward and released, and FIGS. 4A and 4B show a state in which the base mold table 320 is moved to the cover mold table 310 and closed. Shows.

The driving device 340 includes a cam 331 of a similar circular shape rotated by the drive motor 330, a connecting rod 332 having one end connected to the cam 331, and a portion of the connecting rod 332. Horizontal links 333 connected to both ends of the other end, and a pair of vertical links 334, one end is connected to the horizontal link 333 and the fixing base 335 respectively connected to the vertical link 334 And a base mold table 320.

The connecting portion of the connecting rod 332, the horizontal link 333 and the vertical link 334 is fluidly connected by a bearing.

Accordingly, when the cam 331 moves from the state of FIGS. 3A and 3B to the state of FIGS. 4A and 4B, the horizontal links 333 connected to the connecting rod 332 are located at the top dead center of the cam 331. The vertical links 334 which are held horizontally and connected to the horizontal links 333 are maintained parallel to the pillar 350 while being maintained in the vertical direction.

The driving motor 330 may be accurately stopped at a position corresponding to the closed state of the base mold table 320. In this position, the drive 340 can implement or accommodate particularly high molding pressures.

When the cam 331 exceeds the top dead center beyond the above state, the horizontal link 333 and the vertical link 334 are shifted into a curved shape as shown in FIG. 3A or 3B, and the base mold table 320 is a cover mold table ( It is gradually taken a release position from 310.

Through proper manipulation of the drive motor 330, the base mold table 320 is raised until it is closed with the cover mold table 310, or the base mold table 320 is moved downward to cover the cover. It descends until it releases with the mold table 310, and it stops driving exactly in the termination position every time.

Then, the pallet 60 of the conveyor 50 is transferred through the working spaces limited by the front and rear pillars 350 and the respective mold tables 310 and 320.

In addition, as shown in FIGS. 5A and 5B, the respective mold tables 310 and 320 are equipped with respective molds 311 and 321, and the respective molds 311 and 321. The heat transfer member 312, 313 which can apply heat to the synthetic resin material 30 is set to the working space is formed, to maintain the plastic deformation temperature of the synthetic resin material 30, this heat transfer The temperature of the members 312 and 313 is adjustable according to the plastic deformation temperature of the synthetic resin material 30.

In addition, the base mold 321 is to maintain the elasticity by a pedestal 360 and the spring means (not shown) at a predetermined interval, the pedestal 360 is a pallet 60 and the synthetic resin material 30 And the base mold 321 rises to absorb the impact of the pallet 60 and the synthetic resin material 30 when the cover mold 311 moves to the closed position, thereby stably closing the closed mold. It will have a function to maintain.

In addition, the cover mold 311 is formed with a flow path 390 connected to the compressor 380 such that high-pressure compressed air flows into the closed space 393 through the flow path 390. The flow path 390 is equipped with a valve 394, a high-pressure pipe connection adapter 395 and a preheater 396, etc., which can be selectively opened and closed, and further, by forming a plurality of flow paths 390 according to the molding material to increase the pressure effect. In addition, a bypass pipe 392 for introducing a specific gas having an inert gas and a surface modification effect may be included in the pipe network constituting the flow path 390.

In the pressurized environment, the specific gas may act on the synthetic resin surface and the components of the printing ink to cause a kind of surface treatment effect, thereby creating a modified surface of the synthetic resin surface.

In addition, since the preheater 396 is mounted on the pipe network, compressed fluid such as nitrogen supplied from the compressor 380 may be preheated and supplied into the space 393, thereby increasing molding efficiency.

As shown in FIG. 5B, the closed space 393 means that the base mold 321 is combined with the cover mold 311 to constitute a closed pneumatic chamber.

In addition, an airtight holding member 391, such as a packing, is formed at the edge of the cover mold 311 in order to prevent the high pressure air from leaking in the closed state. Although shown, it can be mounted in addition to the edge of the base mold 321 to enhance the airtight effect.

When the high pressure fluid is applied to the synthetic resin material 30 in the pneumatic chamber while the molds 311 and 321 are kept closed as described above, the synthetic resin material preheated to the firing temperature as shown in FIG. 30 is press-molded into a molded product 20 such as the shape of the base mold 321 by the pressure of the fluid to be applied.

In addition, as shown in FIG. 5A, the masking film 301 may be supplied across the cover mold 311, and the masking film 301 may be guided from the supply roll 302 to the guide roll 303. Guided to the field and supplied to the lower end of the cover mold 311 by the automatic grip device 80, when the base mold 321 is coupled is cut by both blades 304 of the cover mold 311, the molding material ( It is molded in the state mounted on 30).

Therefore, since the masking film 301 for protecting the product is simultaneously compressed to the molded product, it is not necessary to undergo a separate surface protection masking film packaging process as in the prior art, thereby reducing the number of packaging processes. .

When the molding of the molded product is completed, the base mold 321 is positioned in a released state according to the signal of the controller, and the molded product 20 on the pallet 60 in the pneumatic chamber is next moved according to the movement of the conveyor 50. The process moves to. Here, the next step is to immediately carry out the molded product 20 to the outside through the take-out unit 600, for example, as shown in Figure 5a to move to the punching unit 400 after the molding unit 300 After removing the unnecessary portion through the punching process, the molded product 20 can be carried out to the outside through the take-out unit 600, typically, as shown in Figure 5b, the forming unit 300, the punching unit 400 ) And the take-out part 600 in order to carry out the molded product 20 to the outside of the apparatus through the take-out part 600.

At this time, the punching part 400 and the cutting part 500 is configured to be punched and cut by a cam driving means in a conventional manner, similarly to the molding part described above, and thus a detailed description of the driving means will be omitted. do.

As shown in FIG. 7A, the upper housing 1, the button substrate 3, the printed board (not shown), and the like can be integrally formed by press molding only by the base mold by one molding process.

That is, in the drawing, the button 5 is formed so as to protrude upward, and the lower part is formed to have a flat surface, while a printing part is formed on its plane, and at the bottom, a conductive member which is grounded with the grounding means in the housing (shown) May be combined to be molded.

The molding of the printing unit and the combined molding of the conductive member may be press-molded in a batch process in addition to the molding material in the molding unit described later.

The molding of each material is based on the premise that it is press-molded by a high pressure fluid at the plastic deformation temperature of the material of each material. Although the normal pressure air is used as the high pressure fluid, inert gases are mixed according to the characteristics of the material surface. Modification effect or the protection effect of a printed layer can also be acquired.

In addition, various forms of molded products can be obtained by pressure molding, and examples thereof include protrusions 21, recesses 22, holes 23, etc., in the molded product 20 as illustrated in FIGS. 7B to 7D. Although this is shown, in this invention, it is not limited to this, Product shape | molding of various forms is possible according to the shape of the base mold of the shaping | molding part mentioned later.

According to the device of the present invention as described above, unlike the conventional method using a pair of male and female molds, the life of the mold is extended, and by simply replacing the base mold, it is possible to easily produce synthetic resin processing members of various shapes. By making it possible, the mold manufacturing cost is inexpensive, and the work time required for the mold manufacturing can be shortened considerably, which is very suitable for small quantity production of many kinds.

In particular, even if the printed plate-like material is molded by the compression fluid without the upper mold directly contacting the upper surface of the material to be processed, the printed surface is not damaged at all. Pre-printing enables precise and high-quality printing, thus improving productivity and dramatically reducing processing costs in the production of synthetic resin materials that include printing, maintaining beautiful design and initial brilliant print quality. It is a groundbreaking device for the special construction method that should be done.

Claims (2)

An automated conveying system consisting of an inlet, a preheater, a forming part, a punching part and a takeout part, which is horizontally movable, for raising a storage chamber for stacking the synthetic resin material in multiple layers and the synthetic resin materials stacked in the storage chamber. And a synthetic resin material automatic supply unit which is connected to a chain or a band to the rising motor and a jack for raising or lowering according to the operation of the rising motor, installed at one end of the jack, and a pedestal for laminating the synthetic resin material. , An adsorption plate for adsorbing the synthetic resin material supplied from the automatic supply unit by pneumatic pressure, a transfer means for transporting the adsorption plate at a predetermined distance, and an automatic grip unit for supporting the adsorption plate; The press forming apparatus by the pressurized fluid of the synthetic resin sheet material, characterized in that the pallet conveyed from the automatic grip portion to the pre-heating portion, the molding portion, the punching portion and the inlet portion for conveying. The sprocket according to claim 1, wherein the inlet portion is provided with a pair of sprockets rotating by receiving power from a drive motor, a chain for connecting the pair of sprockets, a guide sprocket for adjusting the deflection and tension of the chain, and the sprocket. A roller or a conveyor installed between the guide and the sprocket, a roll retaining bracket for supporting the roll or the conveyor, and a first cylinder and a second cylinder for assisting the pallet transfer by raising or lowering the roll retaining bracket to a certain height. Press molding apparatus by the pressurized fluid of the synthetic resin sheet material.