JP5017219B2 - Vibrating sieve device for resin particles - Google Patents

Description

  The present invention relates to a vibration sieving apparatus for classifying resin particles such as a granulated resin product or a crushed product.

  Conventionally, as a vibration sieving apparatus for classifying resin particles, for example, as described in Patent Document 1, a plurality of sieving frames each having a mesh screen made of a metal mesh or a punching plate are stretched on the bottom. A state in which the mesh of the upper screen is the largest and gradually decreases toward the lower, and each screen is tilted from the resin particle supply end side (classification start end side) toward the discharge end side. It is widely known that the sieving is carried out while vibrating the sieve frame so as to move the resin particles on the sieving net toward the downward inclined end.

  However, according to the vibration sieving apparatus configured as described above, there is provided a means for positively removing the resin particles from the mesh when large-diameter resin particles fit into the mesh of the sieve mesh during sieving. As a result, there is a problem that a large part of the sieve net is clogged in a short period of time, making it impossible to screen.

  On the other hand, as described in Patent Document 2, as an apparatus for removing particles clogged in the mesh of the metal mesh, it can be moved by a support member below the sieve mesh composed of the metal mesh stretched on the sieve frame. By providing a chamber in which a plurality of spherical dynamometers (tapping balls) supported on the screen are arranged, the dynamometers are lifted up by the vibration action of the sieve frame and collide with the lower surface of the sieve mesh. Sieve devices have been developed that are configured to push up the clogged particles and remove them from the mesh.

  In Patent Documents 1 and 2, a wire mesh made of a metal wire is used as a screen mesh. However, a predetermined tension is applied to the screen frame using a screen made of a material having a lower strength than a metal wire such as nylon. A sieving device that is stretched in a tensioned state is also employed, for example, as described in Patent Document 3.

JP-A-6-238661 JP-A-7-39815 JP-A-5-123654

  However, according to the sieve mesh made of the above-described wire mesh, the metal wire forming the mesh is hard and the shape of the mesh is not easily deformed, so that the large-diameter resin particles fit into the mesh during sieving. The resin particles are firmly pressed and locked so as to bite into the metal wires forming the mesh, and clogging occurs easily, and the resin particles are elastic, so the vibration of the sieve mesh Along with this, the part of the particles pressed against the metal wire bites into the mesh while elastically reducing its diameter, and the locking force with the mesh increases further, causing the spherical dynamometer to collide with the lower surface of the sieve mesh. Even if the resin particles are struck from below, the locking force between the mesh and the resin particles is larger than the tapping force, making it difficult to remove the resin particles from the mesh, and the classification processing capacity decreases in a short period of time. This causes problems.

  On the other hand, when the sieve mesh is made of a synthetic resin mesh such as nylon, it does not have the hardness of the metal wire, but the sieve mesh made of this synthetic resin mesh is tensioned with a predetermined tension on the sieve frame. Since it is stretched in a stretched state, when resin particles with a large diameter enter the mesh, the resin particles are firmly pressed against and locked to the synthetic resin filaments, as in the case of a sieve mesh made of wire mesh In addition, the mesh meshes into the mesh while elastically reducing its diameter as the screen mesh vibrates, increasing the locking force with the mesh and making it impossible to pass through the mesh. Even if pushed up from the lower side, it is difficult for the pushing force to overcome the locking force between the resin particles and the mesh, and clogging cannot be effectively eliminated.

  In addition, since both the above-mentioned wire mesh and synthetic resin mesh are stretched in a strained state on the screen frame, the amount of amplitude when the screen mesh is vibrated in the vertical direction is small. Not only is the sieving effect due to the dynamic movement of the resin particles in the case of lowering, but during the upward vibration, an action force is generated that tries to pull out the large-diameter resin particles locked to the mesh upward from the mesh. There is a problem that the acting force is small and clogging cannot be eliminated.

  Further, even if the above-mentioned swaying element is made to collide with the lower surface of the sieving net, since the sieving net is under great tension, the sieving net hardly bends and deforms along the surface of the slidable net, as shown in FIG. As described above, the dynamometer collides with the lower surface of the sieve mesh in a point contact state, and only the resin particles fitted in the mesh of the portion can be pushed up, and the clogging processing capacity is reduced. Become.

  In addition to sieve mesh made of wire mesh or synthetic resin mesh, sieve mesh made of woven silk yarn is also used, but silk sieve mesh is not only expensive but also easily damaged and can be replaced in a short period of time. There is also a problem economically.

  Further, as a sieving net that can cope with the clogging and breaking of the sieving mesh as described above, a sieving net made of a nylon rubbing net has been adopted among contractors. This knitting net is a knitted fabric in which twisted yarns are used for warp and weft yarns, and at the intersection of warp yarns and weft yarns, one twisted yarn is twisted back and the other twisted yarn is inserted between the yarns forming the twisted yarn. It has a structure, and therefore the mesh is not a quadrangle like a plain weave mesh, but has a substantially hexagonal shape, which facilitates the passage of resin particles, and has the effect of suppressing the occurrence of clogging. From the viewpoint of price etc., production by manufacturers has been discontinued and is no longer available.

  The present invention has been made in view of such problems, and the object of the present invention is to lock the mesh with the mesh even when the large-diameter resin particles enter the mesh of the sieve mesh during sieving. It is an object of the present invention to provide a vibration sieving apparatus for resin particles that can relieve the force positively to facilitate the removal from the mesh, prevent the occurrence of clogging, and improve the classifying ability.

In order to achieve the above object, the vibration sieving apparatus for resin particles of the present invention, as described in claim 1, relaxes a sieving net formed by weaving synthetic resin filaments as warp and weft on a vibration sieve frame. In the vibrating screen of resin particles stretched in a state , the screen mesh is loosened by stretching the screen through a tube on the vibrating screen frame and then inflating the tube. The synthetic resin filament is stretched by the expansion pressure of the tube, and then the tube is pulled out.

  In the vibration sieving apparatus for resin particles configured as described above, in the invention according to claim 2, the synthetic resin filament is a monofilament, and the synthetic resin monofilament is plain-woven as warp and weft, and the mesh opening is 0.1 to According to a third aspect of the present invention, the synthetic resin filament is a multifilament, and the synthetic resin multifilament is a plain weave as a warp and a weft and has no mesh opening. .1 to 2 mm sieving mesh.

  According to a fourth aspect of the present invention, there is provided a plurality of devices for preventing clogging of the mesh by jumping and colliding with the lower surface of the sieve mesh by the vibration of the vibrating sieve frame inside the sieve mesh in the vibrating sieve frame. It is characterized by being provided with a partition chamber in which a tapping ball is accommodated.

According to the first aspect of the present invention, in the vibration sieve device for resin particles, in which a sieve screen formed by weaving synthetic resin filaments as warp and weft is stretched in a relaxed state on the vibration sieve frame, In the relaxation, the sieve mesh is stretched through the tube on the vibrating sieve frame and then the tube is expanded to expand the synthetic resin filament constituting the sieve mesh by the expansion pressure of the tube. Since the tube is pulled out, the bonding force between the warp and weft forming the mesh is weaker than when the tension is stretched, so that during the sieving of the resin particles, When resin particles with a diameter are fitted into the mesh and locked, the warp and weft forming the mesh expand with each other by the locking force. Mesh is slightly deformed and opened, and the locking force between the resin particles and the mesh is reduced, it is possible to easily perform the escape of resin particles from the mesh.

  At this time, since the sieve screen is stretched in a relaxed state on the vibrating screen frame, the amplitude distance of the screen screen increases when the screen frame vibrates in the vertical direction. When the sieve screen vibrates upwards, the large-diameter resin particles generated by the vibration force can be removed from the mesh. It is possible to increase the acting force to pull upward, and coupled with the relaxation of the above-mentioned locking force of the resin particles to the mesh, the resin particles can be easily detached from the mesh on the sieving mesh, effectively causing clogging. Therefore, it is possible to improve the classification processing capacity and to enable long-term use.

  Further, according to the inventions according to claims 2 and 3, the synthetic resin filament is a monofilament or a multifilament, and the synthetic resin filament is composed of a plain weave as warp and weft so as to constitute a sieve net. Of course, it can be used for a long period of time because of its excellent properties. In the case of a sieving net made of plain monofilament monofilaments as wefts and wefts, it slides easily in the direction of expanding the mesh due to the surface smoothness of the warp and weft. In this case, in the sieving net made by plain weaving multifilaments as warp and weft, the warp and weft can be elastically expanded and contracted in the radial direction. Large diameter resin that can be deformed to reduce the locking force, and thus locked in any case. It is possible to prevent the occurrence of clogging can be easily removed child.

  Furthermore, since the above synthetic resin filaments are plain weave as warp and weft to form a sieve mesh with a mesh opening of 0.1 to 2 mm, a sieve suitable for classification of resin particles such as granulated resin products and crushed products Can provide the net.

  In the vibration sieving apparatus for resin particles according to claim 1, according to the invention according to claim 4, the lower surface of the sieving mesh jumps to the lower inside of the sieving mesh in the vibrating sieving frame due to the vibration of the vibrating sieving frame. A partition chamber containing a plurality of tapping balls that prevents clogging of the mesh by colliding with the screen is arranged, so that the sieve screen is separated by stretching the sieve mesh in a relaxed state on the vibrating screen frame. Coupled with the relaxation of the locking force of the large-diameter resin particles fitted into the mesh with the mesh, the tapping ball hits the lower surface of the sieving mesh to lock it in the mesh. The large diameter resin particles can be reliably detached from the mesh.

  At that time, since the screen mesh is relaxed, when the tapping ball collides with the lower surface of the screen mesh, the screen screen is easily curved and deformed along the spherical surface of the tapping ball, and the number of meshes in contact with the tapping ball increases. In this way, a large number of large-diameter resin particles locked to the mesh can be separated at a time, and therefore, the resin particles can be efficiently and efficiently used over a long period of time by exhibiting an excellent clogging prevention treatment function. Can be screened accurately.

  Next, a specific embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view of a state in which a plurality of resin particle vibrating screen devices are arranged, and FIG. FIG. 3 is a simplified perspective side view, and FIG. 3 shows a vibration sieving device in which a screen mesh 1 is stretched at the upper end opening of a planar rectangular sieving frame 2, and this vibration sieving device is shown in FIG. As shown in FIG. 2, the sieve screen 1 of each vibration sieving device is stacked in a state of being gently inclined downward from the supply end side to the discharge end side of the resin particles, and appropriate vibration is generated as a whole. It is configured to vibrate by a device (not shown).

  In the known vibration sieving apparatus, the sieve screen 1 is stretched in a tensioned state with a constant tension. In the present invention, the sieve mesh 1 is stretched in a relaxed state without being tensioned. Sag is generated slightly downward from the four-side periphery toward the center in the width direction and the length direction. As shown in FIGS. 4 and 5, the sieve mesh 1 is composed of synthetic resin filaments such as polyamide or polyester as warp 1a and weft 1b, and the mesh 3 has an opening of 0.1 to 2.0 mm, preferably 0.2. It is woven into a plain weave so as to be -1.0 mm. As the synthetic resin filament, either a monofilament (shown in FIG. 4) or a multifilament (shown in FIG. 5) may be adopted.

As shown in FIG. 6, an elastic tube T made of rubber or the like is disposed over the entire length of the center portion in the width direction of the sieve frame 2 as a method of stretching the sieve net 1 so as to be in a relaxed state . After the installation, the screen 1 is stretched on the tube T by putting the screen 1 in a tensioned state with a certain tension and fixing the both side edges to the both side edges of the screen frame 2, and then the elastic tube T By inflating the elastic tube T by injecting a fluid such as air or water from the outside, the synthetic resin filament constituting the sieving net 1 is stretched by the expansion pressure, and then the elastic tube T is pulled out. is stretched by an amount corresponding slack state corresponding to the elongation of said synthetic resin filament by.

In addition, when the sieve devices are arranged in multiple stages, the sieve mesh 1 stretched on the sieve frame 2 of the upper sieve device is configured to have the largest opening and gradually become smaller as the lower stage. However, it is also possible to make the openings of the sieve meshes 1 stretched on the upper and middle sieve frames 2 the same, or to vibrate through the 1 to 2 sieve screens 2 with the sieve mesh 1 stretched. The apparatus may be configured. In short, the present invention can be satisfied if the sieve net 1 is stretched on the sieve frame 2 in a relaxed state.

  The relaxed state of the sieve screen 1 does not necessarily mean a state in which no tension is applied, but the tension force of the conventional sieve screen stretched with a certain tension is released by a predetermined ratio to the sieve frame 2. In the stretched state, tension is applied to the warp 1a and weft 1b by its own weight, but when large-diameter resin particles are fitted, misalignment easily occurs due to the biting force. Say.

  In the sieve frame 2 in which the sieve screen 1 is stretched in a relaxed state as described above, as shown in FIGS. 2 and 3, the classification is provided in the lower end portion of the sieve frame 2 that is spaced apart from the sieve mesh 1 downward. A support member 4 made of a wire mesh or punching metal provided with a large number of holes 4a having a diameter much larger than the maximum diameter of the resin particles to be stretched is stretched, and the support member 4 surrounded by the sieve frame 2 The space between the upper surface of the screen and the lower surface of the sieve net 1 is formed in a plurality of partition chambers 5 by vertical and horizontal partition frames 4 b fixed to the upper surface of the support member 4, and the diameter in each partition chamber 5 is A plurality of rubber tapping balls 6 of about 32 mm are accommodated.

As an example of a specific structure of the sieving device arranged in a plurality of stages, as shown in FIG. 1, resin particles A are stretched on the upper surface of the upper sieving frame 2-1, and the sieving frame 2-1 is stretched. The first guide frame 7 provided with the first inclined guide plate 7a to be supplied to the upper inclined end side (one end side) of the sieve screen 1-1 is integrally disposed in an overlapped state. Sifter screen 1-1 stretched over sifter frame 2-1
On the lower inclined end side, which is the other end side, a passage port 8-1 is provided for dropping the large-diameter resin particles A1 that have not been screened off by the sieve screen 1-1. Further, between the upper sieve frame 2-1 and the middle sieve frame 2-2, the resin particles A2 that have passed through the mesh 3 of the upper sieve screen 1-1 are received and provided at the lower inclined end thereof. A second guide frame 9 having a second inclined guide plate 9a for discharging the resin particles A2 to the outside from the first discharge port 10-1 is interposed, and the second inclined guide plate in the second guide frame 9 is interposed. On the upper inclined end side which is the other end side of 9a, a large diameter resin particle A1 falling from the passage port 8-1 below the passage port 8-1 provided in the upper sieve frame 2-1 is provided. Is provided on the upper inclined end portion of the sieve net 1-2 that is stretched over the middle sieve frame 2-2.

  Further, on the lower inclined side, which is one end side of the sieve screen 1-2 in the middle screen frame 2-2, a passage port 8-2 through which the resin particles A3 that have not been screened off by the sieve screen 1-2 are dropped. Is provided. Between the middle sieving frame 2-2 and the lower sieving frame 2-3, the resin particles A4 that have passed through the mesh 3 of the middle sieving screen 1-2 are received and provided at the downwardly inclined ends. A third guide frame 12 having a third inclined guide plate 12a for discharging resin particles A4 to the outside from the second discharge port 10-2 is interposed, and adjacent to the second discharge port 10-2. The resin particles A3 falling from the passage port 8-2 are stretched on the lower screen frame 2-3 below the passage port 8-2 provided in the middle screen frame 2-2. An inclined delivery plate 11-2 is provided for feeding on the upper inclined end portion of the sieve net 1-3.

  On the lower inclined end side of the screen mesh 1-3 of the lower screen frame 2-3, there is provided a passage port 8-3 for dropping the large-diameter resin particles A5 that were not screened out by the screen mesh 1-3. Further, below the lower sieve frame 2-3, the resin particles A6 that have passed through the mesh 3 of the sieve mesh 1-3 of the lower sieve frame 2-3 are received and the lower inclined end thereof is received. A fourth guide frame 13 provided with a fourth inclined guide plate 13a for discharging the resin particles A6 to the outside from the third discharge port 10-3 provided in is integrally provided in an overlapping state. Note that the sieve mesh 1 of the above-described sieve frame 2 is stretched in a relaxed state, and the sieve frame 2 with the sieve mesh 1 stretched in this way is laminated in multiple stages (three stages). The apparatus is vibrated in the length direction and the vertical direction by an appropriate vibration generator (vibrator).

  The vibration sieving device of the present invention is not limited to the sieving device configured as described above. As described above, the vibration sieving device is a vibration sieving device in which the sieving net 1 is stretched in a relaxed state on the sieving frame 2. Although satisfactory, the method for classifying the resin particles A will be described in detail below based on the sieving apparatus having the above-described configuration.

  When the resin particles A to be classified are supplied onto the first inclined guide plate 7a of the first guide frame 7 while vibrating the entire sieving device by operating the vibration generating device, the resin particles A become the first inclined guide plate 7a. This screen falls from the lower inclined end of the screen net 1-1 to the upper inclined end portion of the upper screen frame 2-1 and is moved on the screen net 1-1 to the lower inclined end side. Resin particles A2 having a smaller diameter than the mesh 3 of the mesh 1-1 are provided on the support member 4 that supports the tapping balls 6 that pass through the mesh 3 and are stretched at the lower end of the upper sieve mesh 2-1. While falling on the second inclined guide plate 9a of the second guide frame 9 through the large hole 4a and discharged and stored outside through the first discharge port 10-1, the resin particles A1 having a diameter larger than that of the mesh 3 are The second guide frame 9 other than the second guide frame 9 moves through the sieve net 1-1 and passes through the passage port 8-1 provided on the downward inclined end side of the sieve net 1-1. Fall on the inclined feed plate 11 - it is provided to the parts, is sent on top 傾端 portion of sieve screen 1-2 of the middle sieve frame 2-2 through the inclined feed plate 11-1.

  Further, in the resin particles A1 having a diameter larger than that of the mesh 3 of the sieve screen 1-1, when some of the resin particles A1 are fitted into the mesh 3 while moving on the sieve mesh 1-1, the sieve Combined with the net 1-1 being stretched in a relaxed state, the vibration force of the sieve net 1-1 and the tapping ball 6 can be quickly separated from the net 3 to prevent clogging.

  That is, since the sieve mesh 1 (1-1) is made of a plain-woven synthetic resin mesh and is stretched in a relaxed state on the sieve frame 2 (2-1), the intersection of the warp 1a and the weft 1b The frictional locking force in this is weaker than that of a sieving net stretched in a tensioned state and is easily misaligned. Therefore, the large-diameter resin particles A1 are fitted into the mesh 3 and locked. In this case, when the sieve mesh 1 that vibrates in the vertical direction vibrates downward, the mesh 3 bites into the mesh 3 to increase the locking force. The warp 1a and the weft 1b forming the mesh 3 by the locking force However, when the escape is generated in the direction in which the mesh 3 is to be expanded, the locking force of the resin particles A1 with respect to the mesh 3 is relaxed, and when the sieving mesh 1 vibrates upward, the resin particles are removed from the mesh 3 by the vibration force. Receives an acting force in the direction of pulling

  At this time, since the sieve mesh 1 is stretched in a relaxed state on the sieve frame 2, the vertical amplitude of the sieve mesh 1 is increased, so that the above-described working force for pulling the resin particles A1 out of the mesh 3 is generated. It is possible to prevent the resin particles A1 from becoming larger and easily coming out from the mesh 3 onto the sieve mesh 1 and causing clogging. In addition, the effect of sieving the resin particles by the sieve screen 1 is improved by the large vertical amplitude width of the screen mesh 1.

  Further, the tapping ball 6 disposed in the partition chamber 5 on the support member 4 stretched on the lower end portion of the sieve frame 2 jumps on the support member 4 by the vertical vibration of the sieve frame 2. The lower end surface of the large-diameter resin particle A1 that collides with the lower surface of the sieve screen 1-1 and is fitted and locked into the mesh 3 of the sieve mesh 1 (1-1) is hit by the tapping force. The resin particles A1 can be reliably detached upward from the mesh 3. At this time, as described above, since the sieve net 1 is stretched around the sieve frame 2 in a relaxed state, when the tapping ball 6 jumps upward and collides with the lower surface of the sieve net 1, as shown in FIG. The sieve mesh 1 is easily curved and deformed along the spherical surface of the tapping ball 6, and the number of the meshes 3 in contact with the surface of the tapping ball 6 is increased so as to be locked to the plurality of meshes 3. The resin particles A1 can be pushed up all at once and separated onto the sieve net 1, and the ability to prevent clogging by the resin particles can be improved, and the resin particles can be efficiently screened over a long period of time.

  Similarly, the resin particles A1 supplied from the upper sieve frame 2-1 to the upper inclined edge of the sieve mesh 1-2 of the middle sieve frame 2-2 are moving on the sieve mesh 1-2. Sifted. That is, the resin particles A4 having a diameter smaller than the mesh 3 of the sieve mesh 1-2 support the tapping balls 6 that pass through the mesh 3 and are stretched on the lower end portion of the sieve frame 2-2. 4 is dropped onto the third inclined guide plate 12a of the third guide frame 12 through a large hole 4a provided in 4 and discharged and stored outside through the second discharge port 10-2, while having a larger diameter than the mesh 3. The resin particles A3 move on the sieve mesh 1-2 and are provided at the other end of the third guide frame 12 through a passage port 8-2 provided on the downwardly inclined end side of the sieve mesh 1-2. It falls on the inclined sending plate 11-2, and is sent onto the upper inclined end portion of the sieve net 1-3 of the lower sieve frame 2-3 through the inclined sending plate 11-2.

  The large-diameter resin particles A3 fed onto the lower sieve net 1-3 pass through the mesh 3 while the lower-diameter resin particles A6 pass through the net 3 while moving on the sieve net 1-3. It falls onto the fourth inclined guide plate 13a of the fourth guide frame 13 through a large hole 4a provided in the support member 4 supporting the tapping ball 6 stretched at the lower end of the sieve frame 2-3. The resin particles A5 having a diameter larger than that of the mesh 3 of the sieve screen 1-3 are stored while being discharged and stored from the third discharge port 10-3 provided on the lower inclined end side of the fourth inclined guide plate 13a. It is dropped and stored through a passage port 8-3 provided on the downwardly inclined end side of the sieve net 1-3.

Further, when the resin particles A are fitted on the mesh 3 while the resin particles are moving on the middle and lower sieve meshes 1-2 and 1-3, the upper sieve mesh 1- As in the case of the resin particles fitted in 1, the relationship of the resin particles A to the mesh 3 due to the sieve meshes 1-2 and 1-3 being stretched in a relaxed state on the sieve frames 2-2 and 2-3. These sieve meshes 1-2 and 1-3 combined with relaxation of the stopping power
The resin particles can be easily separated from the mesh 3 by the vertical vibration force and the pushing force of the tapping ball 6 and the resin particles can be screened while preventing clogging.

  In the above embodiment, the sieve mesh 1 is stretched in a relaxed state on the rectangular frame-shaped sieve frame 2. However, the sieve mesh is stretched in a relaxed state on a planar circular sieve frame. Also good. Moreover, although the case where the sieve net 1 is a plain weave is shown, the present invention can be satisfied even if it is a twill weave.

  The resin particles A may be unfoamed resin particles or prefoamed resin particles obtained by prefoaming resin particles impregnated with a physical foaming agent. In the particle classification, the vibration sieving device can exhibit the above-described excellent effects.

  Examples of the synthetic resin constituting the resin particle A include polystyrene such as polystyrene, high impact polystyrene, styrene-ethylene copolymer, styrene-modified polyethylene resin, styrene-maleic anhydride copolymer, styrene-acrylonitrile copolymer, and the like. Examples thereof include polyolefin resins such as polyethylene resins, polyethylene, polypropylene, and ethylene-vinyl acetate copolymers, and polyester resins such as polyethylene terephthalate.

  Examples of the physical foaming agent include aliphatic hydrocarbons such as propane, butane, pentane and hexane; aliphatic cyclized hydrogens such as cyclopentane and cyclobutane; trichlorofluoromethane, dichlorodifluoromethane, dichlorotetra Halogenated hydrocarbons such as fluoromethane, trichlorotrifluoroethane, methyl chloride, methylene chloride, and ethyl chloride are listed.

The disassembled perspective view of the state which has arrange | positioned the vibration sieve apparatus in multiple steps. The partially cutaway perspective view of a vibration sieving device. The simplified longitudinal side view. The enlarged plan view of a part of the sieve net which consists of synthetic resin monofilaments. The partial enlarged plan view of the sieve net which consists of synthetic resin multifilaments. The perspective view which shows the state which has loosened the sieve net | network. Explanatory drawing of the state which made the tapping ball collide with the lower surface of a sieve net. Explanatory drawing of the state which is performing the clogging process of the conventional sieve net | network.

1 Sieve
1a Warp
1b Weft 2 Sieve frame 3 Mesh 4 Support member
4a hole 6 tapping ball

Claims (4)

In a vibrating sieve device for resin particles, in which a sieve screen made by weaving synthetic resin filaments as warp and weft is stretched in a relaxed state on a vibrating screen frame, the screen is loosened by placing a tube on the vibrating screen frame. The synthetic resin filament constituting the sieve net is expanded by the expansion pressure of the tube by stretching the sieve net in a tension state and then expanding the tube, and then pulling out the tube. A vibration sieving device for resin particles characterized by the above. 2. The resin particle according to claim 1, wherein the synthetic resin filament is a monofilament, and the synthetic resin monofilament is plain-woven as warp and weft to form a sieve mesh having an opening of 0.1 to 2 mm. Vibration sieve device. The synthetic resin filament is a multifilament, and the synthetic resin multifilament is plain-woven as warp and weft to form a sieve net having an opening of 0.1 to 2 mm. Vibration sieve device for resin particles. A partition chamber containing a plurality of tapping balls that prevent clogging of the mesh by jumping by the vibration of the sieve frame and colliding with the lower surface of the sieve mesh is installed inside the screen of the vibrating screen. The vibration sieving device for resin particles according to claim 1, wherein

Images