TW515743B - Apparatus and process for filtering viscous material - Google Patents

Abstract

An apparatus for filtering viscous material, in particular thermoplastic synthetic plastic material, comprises a screw (24), which presses the material to be cleaned from an upstream conduit (3) of a supply housing (2) towards a band-shaped sieve (4). The sieve (4) is abutted on its downstream side by a perforated plate (6) against the pressure of the supplied material. The band-shaped sieve (4) can be displaced for replacement of a soiled band section by a fresh band section. For facilitating this displacement a device is provided, which comprises a closure means (30) that is disposed on the upstream side of the sieve (4), by which closure means (30) the upstream conduit (3) for the material to be filtered can be closed at least substantially. On the upstream side of this closure means (30) a storage space (36) for material to be cleaned is connected to the upstream conduit (3). Within this storage space (36) a piston (38) is sealingly guided, which is reciprocable by a drive means and closes in its projected position the storage space (36) against the upstream conduit (3).

Description

515743 V. Description of the Invention α) Background of the Invention Field of the Invention The present invention relates to a device and a processing method for filtering a viscous material, and particularly to a thermoplastic plastic material. The invention is about a method of invention. This material specifically means that a screw will go to a belt-shaped screen to resist the flow area of the material to penetrate the screen area of the material, and the device includes a piston connected to the piston for intervening. This reliance on adjustment includes the material flow to be filtered. The division network closely guides back and forth. The purpose of the invention is to install the special device between the directions of the material movement. Because it refers to heating the material, the tape is centered to the ground and the squeezed material is guided. The movement is related to the structure of the Ming system, and the screen is almost completely observed on the screen. It is used for The filtering viscous plastic plastic material is completely separated from a feed-like screen and pressed into a storage tank for a tube. The structural downstream force, and the dirt sieve is reduced to the middle of the spice tank and penetrates the storage filter sticking device. The problem is that the installation of the active material for blocking the extruding and breaking device, which includes the extruding surface in the groove, is attached to the belt-shaped screen area. The material is completely used so that the material is passed through a driving groove and the extruding material is delayed. According to the present invention, the auxiliary tube can be used as an auxiliary device. The blocking tube is provided with a device which is simplified to dispose and dispose of the force. The special material tube is extruded in a perforated plate mesh system and can be replaced by a clean device. Install and clear, then use the device to drive and empty the catheter. With the simple and adjustable adjustment device and the breaking device, the device can be filtered in the storage tank and the blocking device to be filtered.

Page 6 515743 V. Description of the invention (2) and the structure of internal guidance for easy observation. If the entry is weak enough to be used, the retention is sorrowful and the capacity is large enough. The supply operation is completed. The replacement material is replaced to the extended position. It is more than 30 Obar and makes the sieve's friction better. It can also be used for vegetable juice, which is often more tolerant. The pressure reducing device can be used to extend the foot. Because the mesh area makes the area back squeeze. When the material supplied to the division network is likely to be high on the network, the most basic cause is caused. When the broken state of the storage element of the juice plug allows the sieve to accumulate in the storage block, no material is required. The clean material is placed in the tube again, and the material enters the well-filtered thermoplastic under the net or even the net adheres, which will prevent the device from passing through the hopper. The use of the city network area makes the network removable in the device and the flow is interrupted in the screen to the unstable teacher network area. The flow direction is located and the line is allowed to mix uniformly. The high pressure of the plastic is that when the division network can be in a non-low pressure state, that is, these elements are feasible and need to be in the state to be overridden. As a matter of course, the division should store some materials in the network, making. Therefore, the force and the hole plate body are replaced under normal pressure, and the material is in the material state at the time of replacement. The process in the material tank is affected by the present invention. It is not easy to set the material at the same time as the material in the tank. It will not be easy to structure the structure. The resistance will be applied to the process. If it is, the device will immediately flow the live-based material disposal duct until it has passed so that the operation also breaks the screen of the device. The live-based storage tank will not be occupied if it is not used. The opening of the dirt also causes the material to be filtered again after the filter is cleaned, and a high pressure will occur on the screen. The action of the material on the contaminated area. The invention operates in the state of the invention and does not. For example, when going into low voltage operation. and

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ill 515743 V. Description of the invention (3)

In response to the latter situation, it is not important whether the supply of the material to be filtered is stable or not, so one or more sliding elements or piston elements may be used to constitute the material conveying device in the extrusion duct. However, when filtering synthetic plastics, especially when filtering thermoplastic plastic materials, most of these materials are supplied to at least a screen of a mold or a pelletizing device of an extruder. It is therefore necessary to stabilize the supply of the material to be filtered. In this type of equipment, the supply of unstable materials to the screen will cause the material or product quality produced by the mold or pelletizer to be unstable. Therefore, in the device for filtering the plastic material, a screw provided in the extrusion duct is usually used to convey the material to be considered. In a preferred embodiment of the present invention, when the piston is in the extended position, the shape of the front end surface of the piston facing the extrusion duct is matched with the bore of the screw installation place, so that the piston is in the extended position. It will not rotate in the state, and the surface of the front end surface is brushed just when the screw is rotated. The result of this is that after each step of material entering and leaving the storage tank, the material in the storage tank is supplied to its filtering device, so that no plastic material will remain on the front face of the piston. Therefore, at least the damage caused by heat in most of the material to be filtered is avoided, and the replacement of the soiled part of the screen is accelerated. In addition, it is required that when the screen is replaced, the friction force acting on the screen can be as small as possible. On the contrary, this has caused the tightness required in the filtering operation to be destroyed. Another embodiment of the present invention is to solve this problem, wherein the porous plate body or the plate seat supporting the porous plate body is connected to the feeding trough through a releasable clamping device, and A screen guided between the perforated plate body and the feed trough is bound to the

Page 8 515743 V. Description of the invention (4) Clamping position. Over-considered part of the problem occurred. The division ’s online games fit in the multiple upstream premises. In the short period of time, the actuators and clean parts can be driven along the design in a short time due to heat. Concave-like recessed sieve mesh and quality. In general, when the actual traverse can take the example design device and the present invention. At the sieve part, the mesh in the screen can be accommodated. If the clamping part of the clamping device is loosened, the sieve will also be loosened, and the sieve can be moved without any more due to the blocking. The device will enter the blocking position at this time to reduce the pressure on the space, so the screen will not be squeezed on the orifice plate body. If it can be completely blocked, the pressure on the screen will drop to no pressure at all. The actual clamping device of the present invention includes several hydraulic cylinders, and the blocking position can be released internally, and if the blocking device, the piston, and the screen are properly adjusted, the screen will be made The replacement operation of the stained part and the reciprocating operation of the blocking device and the piston are completed within the time. The shorter these actions, the less damage the material will have. The blocking device can be constructed by various appropriate valves. As an example, the blocking device includes a slide seat, and the slide seat axially moves the extrusion tube. The moving direction of the sliding seat is parallel to the moving direction of the piston of the storage tank, because this allows the sliding seat and the piston of the storage tank to act through a common motion, and a simpler structure is obtained. Providing a flat mesh on the side of the perforated plate body facing the screen will be attached to the plane due to the pressure exerted by the material and the screen will also slightly extend, but it is still deformable in the grid. Within the limits of flexibility. This recess constitutes an empty space left by the belt-shaped screen 4

Page 9 515743 V. Description of the invention (5) A method for replacing a screen in a device for filtering viscous materials according to the present invention, which particularly refers to the treatment of flowable plastic materials. This method starts from the step of supplying the required material by a feeding device, and it particularly refers to a screw in an extruding duct to apply pressure to the material to convey the material to the pressure surface of the belt-shaped filtering screen. Above, one of the cross-sections of the screen is tightly held during filtration. When the screen needs to be replaced, the screen is relaxed, and the screen is moved in the direction of flow across the material until the soiled screen area is completely replaced by a clean screen area. Then, the clean screen area is again isolated from the outside, in which the material to be filtered flowing during the screen movement will flow into a storage tank connected to the extrusion duct. The method of the present invention for a viscous viscous material is characterized in that, when the viscous material is to be passed, the flow of the material generates a large resistance, or even completely stops, the material to be filtered will simultaneously flow into one of the upstream of a blocking position Storage tank, and after blocking the flow of the material to be filtered to the screen, the screen will be loosened and replaced, followed by the supply of the material to be filtered again after the division network is tightened again Flow to the screen, and the material in the storage tank will be squeezed out and introduced into the flowing material flowing to the division's network upstream of the blocking position. Such operating procedures can be easily achieved and controlled. For the occurrence of high pressure in the material to be filtered, it is recommended to completely stop continuing to supply the material so that the material no longer flows to the screen, so as to avoid the material from leaking out because it impairs the tightness of the screen. The purpose and function of the present invention will be made clearer by further explanation in conjunction with the following drawings.

Page 10 V. Description of the invention (6) Detailed description of the invention of the preferred embodiment The following will describe in detail the best practice of the present invention. Among them, the first picture is a part of the cross-section of the accompanying diagram: = Brother; the picture shows the display; the month, the horizontal movement of the device, ^ f, the fourth picture is a display of Yu Ping or The vertical and horizontal positions of the forks in the mouth of the guillotine division are shown along the screen. The second ancient knife along the screen is a cross-sectional view of the fifth embodiment and the sixth embodiment of the invention, which are close to the screen. The 4th place is flat along the vertical screen. The filter sticky material provided by the present invention is +, and the trough is not shown in the figure of the base U. The 3rd place is mainly an extruding pipe 3 loaded by one. The system is provided as a makeover. The material trough 2 is directed to a belt formed by a woven metal mesh, and the material passes through and extrudes a fine mesh to make these materials to be transitioned:,; 4 '^ stay on the receiving end of the belt-shaped screen 4 Pressure surface. ♦ When the shell is separated and it is particularly a recyclable material, these impurities Tianda's "thinking of the thermoplastic plastic material stone form" may even have metals, such as powder dust or small screws, nails and various types of Solid particles. 'Oblique, needle, small dagger passes through the squeeze with too high pressure or slightly lower pressure :: to be filtered' The working section 5 of the material department division network 4 which has been slammed close to l Vf3, the belt is shaped like The plurality of holes 57 in the perforated plate body 6 are large enough. The perforated plate body 6 ′ can pass through the holes of the belt-shaped screen 4. The filtrate will reach the hole 1 'installed in the hole without blocking 7, and then pass through a duct 8 and a confluence part at the rear. Zhi ^ of this 11-pelletizing die head 9. Each of them can be found in each mouthpiece, and M 0 can be connected to a m. Page 11

515743 V. Description of the invention (7) In the granulating device I (not shown in the figure), the granulating device will split the branches of each flowing material discharged from each nozzle 丄 0 into granules and wait for these granules. After the body has cooled, it is transported away. The perforated plate body 6 is provided in a plate body seat 12 '. The plate body seat 12 has a convex portion 13 surrounding the porous plate body 6, and the convex portion 13 may be in a ring shape. The belt-shaped screen 4 is guided by the front end surface 5 6 of the convex portion 13 and moves along the concave portion 5 4 of the front end surface 5 6. The convex portion 1 4 t is not located in the feeding groove 2 facing the belt shape. The shape of the end surface of the division net 4 relative to the convex portion 13 may also correspond to a ring shape. The convex portion 14 abuts a funnel-shaped opening 15 in the extrusion duct 3. The maximum opening size of the funnel-shaped opening 15 is the same as that of the porous plate body 6. The band-shaped screen 4 is assembled between the convex portions 13 and 14. In order to avoid that most of the materials that are filtered under high or slightly high pressure are leaked out between the convex portions 13 and 14, the convex portions 3 and 14 are squeezed against each other to tightly clamp I not in the convex portion 13. The belt-shaped screen 4 between and 14 is located in the recess 54: = the separate clamping device 16 (as shown in the third figure) is composed of the hydraulic cylinder 17 of the hydraulic piston 18, which is transmitted through one: two bows: A hydraulic line 52 drives the hydraulic cylinder 丨, the set 51 and the hydraulic piston 18 to be connected-connected to achieve the clamping effect of _. The 19 ^ Λ ^ 9 1 ^ „counter-stem 1 9 'The connecting rod 19 is received through the bore 20 in the flange 21 of the yoke juice 12 and is received, 2. When the hydraulic cylinder 丨 7 ^ and locks into the convex flange 2 1 and 22 of the supply tank 2 will gradually approach each other when the right side of the phase 18 of the piston 18 moves, the clamped portion 13 and The 14th ^^, because 1 caused the band-shaped screen 4 to be tightly closed to 15 (as shown in the first picture), to avoid the flow through the funnel-shaped opening for the material to pass through with sufficient force 1 The material is leaked out. In order to achieve the __ in the embodiment shown in the fifth, the description of the invention (8) ^ --- _____ a screw 2 4 through the fine material device 23 to follow along! The hole 25 constitutes a supply ,,,,, and ^ ^ The first two phases + 9 materials. Therefore, the thermoplastic synthesis of the two direction to transport these to be filtered and filterable strip environment. 々The material will be squeezed and flowed and transported Until it is formed in the perforated plate body 6 ° —must be required), it can enhance the person, '彖 5 5 and pass through the convex portion 1 3 (the non-porous plate body 6 is more tightly closed. Second, the band-shaped screen 4 can With the combination of its hydraulic cylinder 1 7 times, and also in the example, when the clamping device 16 is equipped with the DJ connection action / the belt-shaped screen 4 is moved, the soil / δδ perforated plate body 6 is changed, when the position is changed. The head 9 and the board seat 1 2 will not follow

With reference to the fifth and the younger brothers, the two embodiments of the dry-inflammable mesh 4 shown in the figure are shown as follows: / Straighten the perforated plate body 6 and the band-shaped sieve-shaped cross-section = Middle, because the square of the perforated plate 6 is shown in the sixth diagram * meaning; the effective use area of Sisi is larger, so the example is better than 箆 τ ® The materials supplied are shown by the five diagrams of AA Is better. ~ The miscellaneous pieces of bamboo have been combined and attached to the band-shaped residue, and the band-shaped sieve 4 is broken and the base-block phenomenon occurs to make it too six ', so that it will soon be affected by the time. Wither ^: »Rate 卩 + Low. Therefore, the belt screen 4 achieves this purpose, and the time net area is replaced with a clean screen area. For the 焉 & example, the V-shaped sieve 4 on the upper side will be subjected to _ ', and the bales will be bundled on a sieve roller 2 7

Move in the direction of the arrow 28 until the device 2 6 is pulled and follow the clear screen area shown in the figure. In the above-mentioned contaminated screen area, it was replaced with a dry 16 series to keep it loose. = Set = Before the operation is completed ’The clamping device is guided by the convex portions 1 3 and 14 but the belt-shaped screen 4 will relatively hinder the screen 由于 due to the making, so that the belt is strong

The screen 4 may be damaged by tearing. (It is shown in the loosening chart that the connecting rod U is controlled by controlling the liquid waste piston U). The dyke 19 is moved to the left (such as the third when the belt clamped between the convex portions 13 and 14 is strong ~ Λ ^, the providing-blocking device 30 is provided to prevent those materials that are loosened by Kugu from passing through the funnel. It is constructed by the opening i 5: == The line 30 is installed on the belt-shaped screen 4 ^^^ to leak out. The resistance system can be crossed along the extrusion duct = 2 And its appearance is clever. Ding Xin gd moves axially _, 'The slider 3 1 has a material opening 3 2, the material is miscellaneous, gq 0, ⑺.' The extrusion of the bucket-shaped opening 15 In the conduit 3, the blocking and puncture 3 connection has the missed production 0, and the kimono is set to the open position of 30. The slip = through-the piston rod 33 is connected-a hydraulically pure piston, and the hydraulic pressure 35 is through a hydraulic pipeline. 50．The connection—the driving device ⑼ can move in the direction indicated by the double arrow 53 and from the position where the second can not fully open the seeding duct 3 to ϋ close the extrusion guide: two positions' Of course, it can be returned to the fully opened position again. The blocking effect of the blocking device 30 will cause the two materials filled in the funnel-shaped opening 15 and the catheter 8 to be larger or complete. The full pressure compensation effect, so that the material installed in the bucket-shaped opening 15 acts on the band-shaped sieve attached to the porous plate body 6, the traveling pressure of Jin q η is reduced or completely released. When the sweetening device 1 6 When the blocking device is loosened at the position 2 ^ ^, the band-shaped screen 4 can be cleaned by the dragged and clean K = f until the screen area of the contaminated screen is completely replaced with ~ Up to the time of the division, and the aforementioned problem of tearing the band-shaped division net 4 does not occur during this period. When the v-shaped blocking device 30 reaches its blocking position, the conveyance of the screw 24

1 V. Description of the invention -------- Stop: The worm t moves in the direction of the arrow 29. In order to avoid the need to stop the tank 3 2 free and dry operation, it must be connected to one of the extruding ducts 3 to store the material 3 8 = assist ° Hai storage tank 3 6 space is limited by the internal guidance of a piston ~ Let ^, t ^ 37, and the position control of the piston 38 is achieved through its connection ^ 39 and then connected to a hydraulic piston 40 line and guide guided in a hydraulic cylinder 41 . The hydraulic piston 40 is driven by a driving device 47 having a hydraulic pipe to produce two 131 displacements in a direction indicated by the double arrow 22. Back to the field when the helium seat 31 moves to its counterweight position, the piston 3 8 will shrink at the same time so that the material conveyed by the fu screw 24 can flow into the storage tank 36, and ^ material tank 36 The volume is large enough so that it can fully accommodate the material conveyed by the screw 24 when the seat 31 is in the blocking position. As soon as the carriage 3 1 moves back to the starting position, the piston 38 immediately extends again, and squeezes out the material filled in the storage, 36. These extruded materials ^ ^ ^ are incorporated into the material conveyed by the 5 helical cup 24 and mixed immediately, so that most of the material passed to the sideband screen 4 to be filtered can always be maintained

As shown in the first figure, when the piston 38 is in the extended position, the end face 43 and the bore 25 form a continuous inner surface. Therefore, the $ place thus obtained is when the screw 24 rotates and flicks. When the front surface 43 is skipped, the material adhered to the surface 43 can be avoided to prevent the material from staying in the extrusion guide 3 for too long. However, the premise is that the piston 38 can have a rotational degree of freedom with respect to the axial direction of the storage tank 6. However, such an object can be easily achieved through an appropriate structural device.

Page 15 V. Description of the invention (11) Planar shape t: 4: Figure :: S-shape The porous plate body 6 has on its pressure surface-flat_ 丄 ㈣ the belt-shaped screen 4 is subject to deformation in appearance Still acceptable. This recess will leave a bit of miscellaneous; accept the band-shaped screen 4 in the pressure surface filter material; ίΓ ^ ί ^^ Ι ;;;;;; ^-shaped screen 4 towards the arrow over time: relative Opposite: The hydraulic pressure in the hydraulic cylinder 17 promoted / described on the square action 6 is moved in the forward direction. The front end inner wall 45 in the installation can be used to move and approach the hydraulic cylinder 17 and 19 to be locked in a spiral manner to :; Since the connecting rod pressing piston 18 is driven to approach;; = 2: the flange 22, the aforementioned liquid plate body seat 12 is thus separated from the feed, and 5 will cause the flange 21 and the effective gap to occur, Make the heart; 2 belts :: the convex layer, and the "impurity layer". The displacement gate 46 and the fork pressure face formed by the displacement width 46 are as shown in the first figure. As shown in the first figure. Filtration is performed in the operating state. When this material is in the device, the screen area formed by the slide seat 31 must be replaced so that it continuously approaches the belt-shaped screen. : Enter privately, break, stop. The piston 38 will also contract at the same time. At least most of the pistons will have a volume of 36 so that it can be '1 ^ mesh distance, so the storage tank The materials to be rotated at the blocking position: Second: When the J screw 24 is disposed at the slide 31, the clamping device 16 will immediately begin to feed the feed trough as soon as it reaches its blocking position p. 2 and the board

515743

515743

515743 Brief Description of the Drawings The drawings show specific embodiments for concretely presenting the constituent elements described in this specification, and explain the main purpose of the present invention to increase the understanding of the present invention. The first picture is a horizontal cross-sectional view showing the device of the present invention; the second picture is a partial enlarged view showing the first picture; the third picture is a partial enlarged view showing the first picture; the fourth picture is a device showing the invention A cross-sectional view along the moving direction of the screen; a fifth view is a cross-sectional view showing one embodiment of the porous plate body of the present invention; and a sixth view is a cross-sectional view showing another embodiment of the porous plate body of the present invention. Symbols of components shown in the figure Base 1 Feed tank 2 Squeeze duct 3 Banded screen 4 Working section 5 Multi-well plate 6 Converging section 7 Duct 8 Granulation die 9

Page 19 515743 Brief description of the nozzle 1 Q Diversion channel 11 Plate base 1 2 Convex 1 3 Convex 14 Funnel-shaped opening 1 5 Clamping device 1 6 Hydraulic cylinder 1 7 Hydraulic piston 1 8 Connecting rod 1 9 Borehole 2 0 Flange 21 Flange 22 Feeder 2 3 Screw 2 4 Borehole 2 5 Towing device 2 6 Screen roller 2 7 Arrow 28 Arrow 2 9 Blocking device 3 0 Slide 3 1 Material port 3 2 Piston connection Rod 3 3

Page 20 515743 Brief description of the piston 3 4 Hydraulic cylinder 3 5 Storage tank 3 6 Hydraulic cylinder 3 7 Piston 3 8 Piston connecting rod 3 9 Hydraulic piston 4 0 Hydraulic cylinder 4 1 Double arrow 42 Front end 4 4 Flat recess 44 Displacement width 46 Drive 4 7 Hydraulic line 4 8 Drive 4 9 Hydraulic line 5 0 Drive 5 1 Hydraulic line 5 2 Double arrow 5 3 Recess 54 Contact edge 5 5 Front end 5 6 Hole 5 7

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Claims (1)

/ N application patent range for the consideration of viscous material means-screw m) the material device (23) (3) is extruded to a belt sieve ;; The material tube is on the porous plate (6) to resist the pressure exerted by the material, and 3: = system 7 adjusts its station fouling in the direction transverse to the flow of the material; clean I mesh area, ... and provide-as storage The material tank m) so that the material is: ^ A lead connected to the extrusion duct (3) is wiped through the storage tank (36); and then the piston (3δ) tightly guides the back and forth restatement η The penetrating drive device (47) is driven and can be used for intervening. The device for adjusting the screens is also included to prevent the gap between the storage tank (36) and the extrusion duct (3). (4) One of the upstream daggers 3 suits (3〇) can tilt the material to be filtered / set (3〇) 'In the blocking device, while waiting, Θ u 枓 into a hand full block The extruding duct (3) is installed in the storage tank (⑹ and ㈣ net (1 ^ silk ^ set (30) 2 set according to item 1 of the device for passing viscous materials) 2 ) Department, show = evening plate (6) or a porous plate (6) The plate body (1 2) is clamped by a device 奘 w Μ β ^ ^ ^ pi by the device (16) in a direction opposite to the feeding trough :: wherein the party is guided by the plate body (12) and The feeding position.] 'It is clamped tightly in the clamping device α6). 3. It is used for filtering viscous materials according to the second item of the scope of patent application # 2. 515743 VI. Scope of Patent Application ′ Wherein the sweetening device (1 6) includes a hydraulic cylinder (1 7). 4. According to item 1 of the scope of patent application, it is used for filtering sticky placement, in which the piston (38) facing the masking duct (3) is installed; it is fitted with the bore of the screw (24) ( 25) the inner surface, and when the surface of the base (38) is in the extended position, its front surface "" will be: the official should have the live turn: so that the piston (38) is guided to the storage material; The lever (24) does not rotate in its axial direction. In the trough (36), and 5. According to the patent application of Yuyu Tuzhe, the dream device for filtering viscous materials described in item 1 of Zai ^ yue target, where the blocking device (3G) $ 材料 之The garment can be moved axially across the extruding duct ⑺. The sliding seat (31) is a device enclosed according to the patent application, wherein the sliding seat (31) of _ \ place 14 is used to transition the installation direction of the retarded material. (The moving direction of Chuan is parallel to the movement of the piston (38). 7. According to the patent application, the rib figure flute e is set, wherein the slide seat (31) and ^, and the driving device for filtering viscous materials are described.) Actuation) and the action of the plug (3δ) are commonly used 8-According to the patent application, I set it up, where more than two ::::;! , ㈣ recess (44). a plane shape at π ′ Scope of patent application on page 23: 9: 扼 Enclosing the device for filtering viscous materials described in item 1 ^ ^ The trough (2) and the plate seat (1 2) can be squeezed in the material The tube (3) has a limited relative movement in the axial direction. I 0 · According to the patent application spectrum Yu Tuzhe η Misery + The body for filtering viscous materials (6 Γ or this / for 1 丨 clothing set (1 6) as described in 9 items of Yuegan Weisi Feeding trough (2) and the use of the perforated plate / υ: 'dagger (2) and the relative displacement of the plate body (1 2) The stagnant material is described as a device for filling with f transitional viscous materials. The clothing device '疋 refers to the transitional thermoplastic plastic material 1 2 · According to the scope of the patent application, i ... Extrusion guide in the charging tank (2) of the stagnant material ^ ^-The screw (24) completely feeds the material from a plum ink to a belt-shaped screen (4). 13 ·-a kind of filter for sticking Material This material is a method of replacing a screen in the center of an extrusion duct. The pressure of the belt filter screen = the high pressure generated by the rotary device and the conveying device is tightly held during transportation. However, the above One of the sections of the screen will be relaxed when the screen is replaced by the screen when the screen is replaced, and the screen area is completely cleaned by the flow of the second screen. Move in the moving direction until the dirty screen Dn is replaced, and follow this clean screen area. 515743 VI. The scope of the patent application is again isolated from the outside, in which the material to be filtered during the movement of the screen will flow into a storage tank connected to the extrusion duct, and when the flow of the material to be filtered produces a large When the impedance even stops completely, the material to be filtered will simultaneously flow into a storage tank located upstream of a blocking position, and after blocking the material to be filtered from flowing to the screen, the screen will be loosened and After being replaced, after the screen is tightened again, the supplied material to be filtered will flow to the screen again, and the material in the storage tank will be squeezed out and upstream of the blocking position. Into the flowing material to the screen. 1 4. The method according to item 13 of the scope of patent application, wherein the material refers to a flowable synthetic plastic material. 15. The method according to item 13 of the scope of patent application, wherein the conveying device refers to a screw. Page 25