TW201427757A - Plastic material filtering device - Google Patents

Abstract

The present invention relates to a plastic material filtering device, which comprises: a shell body, which comprises two front and rear end walls and four up, down, left and right sidewalls, a chamber in the middle, and one sidewall of the shell body is configured with a material feeding channel and the other sidewall is configured with a material cleaning channel, and the front end wall is configured with a material discharging channel, and all the three channels are communicated with the chamber; a filtering member, which is in a tubular shape, and the tube wall is configured with a plurality of through holes, and the portion of through holes is configured with a filtering net, and the tube axis is formed as a receiving room, and the filtering member is received in the chamber of the shell body and is driven to rotate by an external force; a guiding member, which is fixed with the shell body and located within the receiving room of the filtering member, and the positions corresponding to the material feeding channel, the material cleaning channel and the material discharging channel are respectively configured with a material feeding passage, a material cleaning passage, and a material discharging passage, wherein the material feeding passage and the material cleaning passage are communicated with the material feeding channel and the material cleaning channel in separation by the filtering member, and the material discharging passage and the material discharging channel are directly communicated; and, a control valve, which is configured on the guiding member and located in the material cleaning passage for controlling the star-stop of the material cleaning passage.

Description

Plastic filter

The present invention relates to plastic processing machinery, and more particularly to a plastic filtering device.

As shown in the invention patent I340690, it is a plastic filtering device, which discloses the effect of using the pressure of the filtered plastic to reversely clean the filter to achieve continuous filtration. However, after a long period of use, there is still a need to replace the filter screen. At this time, only one stop is required, and it is still not ideal in use.

The main object of the present invention is to provide a plastic filtering device which can replace the filter screen in use to achieve the effect of continuous filtration.

In order to achieve the above object, a plastic filtering device according to the present invention comprises: a casing having front and rear two end walls and four upper, lower, left and right side walls, a chamber in the middle, and one side wall of the casing is provided with a The other side wall is provided with a clearing channel, and the front end wall is provided with a discharging channel, and the three channels are connected with the chamber; a filter member has a tubular shape, and the pipe wall is provided with a plurality of perforations. a filter screen is arranged at the perforation portion, and the tube shaft forms a chamber. The filter member is accommodated in the chamber of the housing and can be driven by an external force; a guiding member is fixed to the housing and located at the filter member a feeding channel, a clearing channel and a discharging channel respectively corresponding to the feeding channel, the clearing channel and the discharging channel of the housing, wherein the feeding guide The channel and the clearing channel are separated from the feed channel by the filter element The clearing channel is in communication, and the discharging channel is directly connected to the discharging channel; a control valve is disposed on the guiding member and located between the clearing channel to control the clearing channel Open and close.

By closing the clearing channel by the control valve, the filter screen of the filter element can be replaced in a filtered state.

An embodiment is described with the following illustration First, as shown in the first to seventh figures, the plastic filtering device of the embodiment of the present invention comprises: a casing (10) having front and rear two end walls (11) (12) and upper and lower left and right side walls (13) (14). (15) (16), having a chamber (17) in between, wherein one side wall (15) of the casing (10) is provided with a feeding channel (151), and the other side wall (16) is provided with a clearing trough The passage (161) has a front end wall (11) provided with a discharge channel (111), and the three channels (151) (161) (111) are in communication with the chamber (17).

a filter member (20) has a tubular shape, a plurality of perforations (21) are arranged on the tube wall, and a filter screen (22) is arranged at the perforation portion, the tube shaft forms a chamber (23), and the filter member (20) is a capacitor It is placed in the chamber (17) of the casing (10) and can be driven by an external force.

A guiding member (30) is fixed in the casing (10) and located in the chamber (23) of the filter member (20), corresponding to the feeding channel (151) of the casing (10), clear A feed channel (31), a clear channel (32) and a discharge channel (33) are respectively arranged at the material channel (161) and the discharge channel (111), wherein the feed channel (31) communicating with the clearing channel (32) and the feeding channel (161) and the cleaning channel (161) via the filter member (20), the discharging channel (33) and The discharge channel (111) is in direct communication.

A control valve (40) is disposed between the guide member (30) and between the clearing guides (32) for controlling the opening and closing of the clearing guide (32).

As shown in the tenth and eleventh figures, the wall of the filter member (20) is provided with at least two panels (24) (four sheets in this embodiment), and the panels (24) are detachable. The method is embedded in the wall of the filter member (20), and at the position of the panel (25) and the tube wall (25) where the card is embedded, a through hole (241) (251) is formed to communicate with each other to form the foregoing a perforation (21), between each of the panels (24) and the wall (25) where the card is embedded, a filter (22) is provided, the filter (22) being embedded in a removable manner In the panel (24), in this embodiment, a groove (242) is provided on the inner surface of the panel (24) for the screen (22) to be embedded.

As shown in the twelfth to fourteenth drawings, one side (16) of the casing (10) is provided with a door (18), and the cleaning channel (161) is disposed at the door (18). The clearing channel of the door (18) is provided with a scraper (19) having a width greater than the width of the panels (24), the door (18) side when the door (18) is opened The panel (24) will be exposed for easy removal of the panel (24) for replacement of the screen (22).

The control valve (40) has a long rod shape and is provided with a long slot (41). The control valve (40) is received in the guide member (30) at the clearing guide (32). Between the two, it can be driven by external force, so that the long slot (41) communicates with the clearing channel (32), which is in the open position (as shown in Figure 7), or the long slot (41) is not It communicates with the clearing channel (32) and is in the closed position (as shown in the ninth figure).

The control valve (40) is driven by a driving mechanism (50), the driving mechanism (50) comprises: (as shown in Figures 1 and 2) a connecting rod (51), one end and the control valve (40) a driving rod (52), one end of which is pivotally connected to the connecting rod (51); a transmission member (53) is sleeved on the driving rod (52) and pivoted by a rotating shaft (54) On the casing (10); a horse And (55) is disposed on the transmission member (53) for driving the driving rod (52) to move up and down. The transmission member (53) may be a set of worms and a worm wheel (not shown). The motor (55) drives the worm to drive the worm wheel to rotate. The drive rod (52) is a screw that is screwed into the center of the worm wheel. The worm wheel drives the drive rod (52) up and down. Alternatively, the drive rod (52) is a row of teeth, and the motor (55) drives the row of teeth to displace the drive rod (52) up and down by a gear. It should be additionally noted that the driving mechanism can also drive the control valve by a motor via a gear set or a chain or a belt, or replace it with a servo motor.

The filter member (20) of the present embodiment is driven by a motor (60) via a gear or a chain or a belt.

When in use, the plastic melter (as shown in the fifth figure, only the discharge port (70) of the extruder) is introduced from the feed channel (151) through the filter. (20) filtering, flowing into the feed channel (31) of the guide member (30), and flowing out of the discharge channel (111) via the discharge channel (33), as shown in the seventh figure, When the control valve (40) is in an open state, part of the plastic flows out through the clearing guide (32) and flows backward through the perforation (21) and the filter (22) of the filter member (20). Forming a backwashing action and pushing the plastic in the perforation (241) of the insert (24) into the clearing channel (161), as shown in the eighth figure, the filter (20) is subjected to the motor (60) driving and slowly rotating, the plastic on the surface of the filter (20) will be scraped off by the scraper (19) and dropped to the door (18) via the clearing channel (161) Among the preset hoppers (181) below.

When the filter (22) is to be replaced, as shown in the ninth figure, the motor (55) of the driving mechanism (50) drives the driving rod (52) to move downward, and drives the control valve (40) to rotate. In the closed position, the clearing channel (32) is completely blocked, all plastic Both are discharged from the discharge channel (33), at which point the door (18) can be opened (as shown in Fig. 15), and then the panel (24) is pulled up to replace the screen. (22) (as shown in Figure 16), it is very convenient to operate, no need to stop, and the filter can be updated under the normal filtering operation.

As shown in the seventeenth and eighteenth embodiments, in another embodiment of the filter member of the present invention, the insert (81) of the filter member (80) is drawn or inserted in the axial direction, and thus the housing ( 90) Instead of a door, an arcuate groove (91) can be provided. By placing a push rod (92) on both sides of the casing, the insert (81) can be moved out or moved in for easy replacement. The filter on the insert. Alternatively, only one robot can be provided to clamp the insert and pull it out or push it into the housing.

(10) ‧‧‧Shell

(11)‧‧‧ front wall

(12) ‧‧‧ rear end wall

(13) ‧‧‧ upper side wall

(14) ‧‧‧lower side wall

(15)‧‧‧ left wall

(151)‧‧‧ Feed channel

(16) ‧‧‧ right wall

(161) ‧‧‧ Clearance channel

(111)‧‧‧Drainage channel

(17) ‧‧‧ chamber

(18) ‧ ‧ ‧

(181)‧‧‧ hopper

(19)‧‧‧Scraper

(20) ‧‧‧Filters

(21)‧‧‧Perforation

(22)‧‧‧ Filter

(23) ‧ ‧ ‧ room

(24)‧‧‧Inlay

(241)‧‧‧Perforation

(25) ‧ ‧ wall

(251)‧‧‧Perforation

(30) ‧‧‧Guide

(31)‧‧‧Feed approach

(32) ‧‧‧Clearing Approach

(33) ‧‧‧Drainage approach

(40)‧‧‧Control valve

(41)‧‧‧Long slot

(50) ‧‧‧Drives

(51)‧‧‧ Connecting rod

(52) ‧‧‧Driver

(53) ‧‧‧Transmission components

(54) ‧‧‧ shaft

(55)‧‧‧Motor

(60)‧‧‧Motor

(70) ‧‧‧Extractor outlet

(80)‧‧‧ Filters

(81)‧‧‧Inlay

(90) ‧‧‧Shell

(91)‧‧‧Arc slots

(92)‧‧‧Putting

The first figure is an external perspective view of an embodiment of the present invention.

The second figure is the same as the first figure, showing the angle of view on the back.

The third figure is an exploded perspective view of the partial components in the second figure.

The fourth picture is another perspective of the third figure.

The fifth figure is a cross-sectional view taken along line 5--5 in the second figure.

The sixth picture is the top view of the fifth figure.

The seventh figure is a cross-sectional view taken along line 7--7 in the first figure. The display control valve is open.

The eighth figure is similar to the seventh figure, showing the state in which the filter member is rotated by a predetermined angle.

The ninth diagram is similar to the seventh diagram, showing that the control valve is closed.

Figure 10 is a perspective view of the appearance of the filter.

Figure 11 is an exploded perspective view of the filter member in the tenth diagram.

The twelfth figure is a perspective view of the appearance of the door.

The thirteenth drawing is an exploded perspective view of the twelfth figure.

Figure 14 is a cross-sectional view taken along line 9---9 of Figure 12.

The fifteenth figure is similar to the first figure, showing the state in which the door is open.

The sixteenth figure is similar to the fifteenth figure, showing the state in which the panel is extracted.

Figure 17 is another embodiment of the filter element.

Figure 18 is a schematic view showing the replacement operation of the insert of the filter member in the seventeenth embodiment.

(10) ‧‧‧Shell

(11)‧‧‧ front wall

(12) ‧‧‧ rear end wall

(13) ‧‧‧ upper side wall

(14) ‧‧‧lower side wall

(15)‧‧‧ left wall

(16) ‧‧‧ right wall

(17) ‧‧‧ chamber

(18) ‧ ‧ ‧

(20) ‧‧‧Filters

(21)‧‧‧Perforation

(23) ‧ ‧ ‧ room

(24)‧‧‧Inlay

(30) ‧‧‧Guide

(32) ‧‧‧Clearing Approach

(40)‧‧‧Control valve

(41)‧‧‧Long slot

Claims (9)

A plastic filtering device comprises: a casing having two front and rear end walls and four upper, lower, left and right side walls, and a chamber in the middle, one side wall of the casing is provided with a feeding channel, and the other side wall is provided with a clearing trough The front wall of the road is provided with a discharge channel, and the three channels are connected with the chamber; a filter member has a tubular shape, the pipe wall is provided with a plurality of perforations, the perforation portion is provided with a filter mesh, and the pipe shaft forms a a filter chamber is accommodated in the chamber of the housing and can be driven by an external force; a guiding member is fixed in the housing and located in the housing of the filter member, corresponding to the feeding of the housing A feeding guide channel, a clear material approach channel and a discharge approach channel are respectively disposed at the position of the channel, the clearing channel and the discharging channel, wherein the feeding channel and the clearing channel are separated by the filtering And the feeding channel is in communication with the cleaning channel, the discharging channel is directly connected to the discharging channel; a control valve is disposed on the guiding member and located between the cleaning channel To control the opening and closing of the clearing channel. The plastic filter device of claim 1, wherein the filter wall has at least two panels embedded in the wall of the filter member in an extractable manner. A perforation is provided between the panels and the wall of the card, and a filter is disposed between the panels and the wall of the card. The plastic filtering device of claim 2, wherein the filter mesh is embedded in the insert in a replaceable manner. According to the plastic filtering device of claim 1, wherein A cleaning blade is provided in the clearing channel of the housing. The plastic filtering device according to claim 2, wherein a side of the casing is provided with a door, the cleaning channel is disposed at the door, and a scraper is disposed in the clearing channel of the door. The width of the door is greater than the width of the panels. The plastic filter device according to claim 1, wherein the control valve has a long rod shape and is provided with a long slot, and the control valve is received in the guide member at the clearing guide. Between the two, the long slot can be driven to communicate with the clearing channel to open the position, or the long slot is not connected to the clearing channel to be in the closed position. The plastic filtering device according to claim 6, wherein the control valve is driven by a driving mechanism, the driving mechanism comprises: a connecting rod, one end of which is pivotally connected with the valve body of the control valve; and a driving rod, One end is pivotally connected to the connecting rod; a transmission member is sleeved on the driving rod and pivoted on the housing by a rotating shaft; a motor is disposed on the transmission member for driving the driving rod to move up and down Bit. The plastic filtering device according to claim 2, wherein the insert of the filter member is embedded along a secant direction of a cross section of the tubular filter member. The plastic filtering device according to claim 2, wherein the insert of the filter member is embedded along the axial direction of the filter member.