TW201736073A - Low profile receiver - Google Patents

Abstract

A receiver having a horizontally elongated chamber within a housing, the chamber having a convex triangular cross-section and a dump flap defining a bottom vertex of the triangular cross-section, with a horizontal air/vacuum resin material inlet connecting to the chamber, and a horizontal air/vacuum outlet leading from and connected to the chamber.

Description

Low profile receiver Cross-reference to related patent applications

This application is a continuation of the U.S. Patent Application Serial No. 29/550,569, filed on Jan. 5, 2016, by the name of the "low profile receiver", which is filed by Stephen B. Maguire;

The invention relates to a receiver, and in particular to a low profile receiver.

The words "air/vacuum", and "vacuum/air" and "air/vacuum gas flow" and the like are used synonymously and interchangeably herein to mean sub-atmospheric pressure drawn by a vacuum pump. The moving air of the air below. This moving "air/vacuum" gas stream is typically used to deliver a granular plastic resin material in a device in which the granular plastic resin is molded or extruded into a finished or semi-finished plastic part.

"Receiver" is a term used in the plastics industry to denote a device in which a granular plastic resin material is loaded into a funnel for subsequent compression, or injection molding press, The granular plastic resin material is temporarily held before the treatment of the extruder. As used herein, the term "processing machine" means a collective term for such compression molding machines, injection molding machines, and extruders.

The receiver typically includes a vacuum chamber that effectively pulls the granular plastic resin material into the receiver by the vacuum present in the vacuum chamber. A vacuum pump is connected to the receiver to establish the vacuum required in the vacuum chamber to pull the granular plastic material into the receiver. This helps to move the granular plastic resin material from the distal end to the funnel that will be fed by the receiver, and the funnel is typically positioned on the processing machine. The receiver and vacuum pump are typically part of a larger resin transfer system that transfers the granular plastic resin from the supply to the receiver.

The receiver can be positioned on a reservoir bin or positioned on a temporary storage unit other than the funnel.

The receiver is loaded periodically. Specifically, as one operation cycle, the receiver is loaded with a granular plastic resin material, and then the granular plastic resin material is poured. Accordingly, the receiver requires a collection box or a surge hopper under the receiver to receive the granular plastic resin material when the granular plastic resin material is fed to the processing machine.

Generally, the vacuum source is remote, that is, it is not integrated into the receiver itself. The simplest and basic form of the receiver is a simple chamber with a vacuum line connected to the chamber to remove air from The chamber is pulled out to establish a vacuum inside the chamber. The vacuum then draws the granular plastic resin material into the chamber portion of the receiver. The receiver thus has a material line connected thereto for flowing the granular plastic resin material therein, or, more precisely, the granular plastic resin material is drawn therein by vacuum. The receiver typically has a valve or gate at the bottom of the receiver to allow granular plastic resin material from the bottom of the receiver when the vacuum is broken or removed, or when the valve or gate is additionally electrically or pneumatically opened. Drop it out. Since the receiver has a storage area, the storage area has a relatively large volume and cross-sectional area compared to the duct through which the air/vacuum and granular material mixture travels, and the moving air/volume flow when the mixture reaches the storage area of the receiver The speed is decreasing. The kinetic energy of the gas stream is no longer sufficient to carry the granular resin, so the resin falls to the bottom of the receiver.

All known receivers have these features in common.

An important feature of the low profile receiver of the present invention is that it provides a very low profile receiver when installed. The processing machine typically has several auxiliary items mounted above the throat of the processing machine. These items may include magnetic gates; additional feeders; simple material funnels; large drying funnels; gravity mixers; The receiver is usually installed above this set of devices. Such upwardly stacked items may conflict with height limits or limits, such as ceilings or interlayers in plastic processing equipment. Access to the receiver for the service may also be an issue. A safety problem arises as the altitude is too high.

In the low profile receiver according to the invention, the receiver only increases the height of 7 在 in one configuration. This is compared to existing receiver designs that require an increased height of 15 to 25 angs due to their configuration.

The low profile receiver of the present invention includes a filter blow off which effectively cleans the entire filter. This cleaning is very effective, which substantially eliminates the periodic filter removal required for conventional filter blowout designs in known receivers.

True full range cloth filters are always blocked when used in conventional receivers, and as a result, conventional receivers most often use only metal screens as filters. Metal screens block particles of granular resin material but do not block or catch dust and fines. The passage of dust and fines requires an extra filter at the vacuum pump to capture dust and fines that would otherwise damage the vacuum pump.

The low profile receiver of the present invention includes a full cloth filter that blocks dust and fines; the full cloth filter is easily cleaned at each cycle by a filter blow-off device.

In one of its aspects, the present invention provides a receiver having a horizontally elongated body with an internal chamber. The inlet conduit of the horizontal granular plastic material communicates with the interior chamber of the elongated body. A horizontal vacuum outlet conduit is connected to the elongated body. A removable dust and material fines (preferably cloth) filter is positioned between the inlet conduit and the outlet conduit and collects dust before dust and material fines can enter the vacuum outlet conduit leading to the vacuum pump With fine materials. To capture dust by using a cloth filter With material fines, no filter is required at the vacuum pump.

The receiver also includes a blower for directing air to the filter to clean the remaining dust and material fines of the filter. The outlet dump baffle extends the longitudinal length of the lower end of the longitudinally elongated housing portion of the receptacle in which the particulate resin material is stored. The outlet tipping baffle is movable between an open position in which the granular plastic material in the housing is free to flow downwardly outside the housing, and a closed position in which the dumping baffle defines Out of the bottom part of the chamber. By extending the dumping baffle of the horizontal longitudinal length of the housing, the housing is substantially instantaneously emptied when the dumping shutter is moved to the open position. Therefore, the receiver is emptied much faster than known receivers.

The receiver body is preferably wider than its height and preferably has a generally convex triangular cross section.

In another aspect facing the same, the present invention provides a method for temporarily storing a granular resin material before processing the granular resin material into a finished product or a semi-finished product by molding or extrusion. The method includes feeding an air/vacuum gas stream with a particulate resin material into the chamber in a first horizontal direction under vacuum. The method is carried out by reducing the velocity of the air/vacuum gas flow in the chamber such that particulate material entrained into the gas stream falls to the bottom of the chamber. The method proceeds by passing the gas stream through the filter in a second horizontal direction and releasing the gas stream from the chamber in a first horizontal direction. In response to the weight of the material, the baffle defining the bottom of the chamber swings to the open position allowing the particulate material to fall from the chamber.

In another aspect of its orientation, the present invention provides a A receiver having a longitudinally elongated body having an interior chamber extending the length of the body. A horizontal conduit is provided for use as an inlet for the air/vacuum gas stream with granular resin material and in communication with the interior chamber of the elongated body. A horizontal air/vacuum outlet conduit is connected to the interior chamber of the elongated body. The dumping baffle extends horizontally along the lower end of the inner chamber and is movable between an open position and a closed position, wherein the granular plastic material in the chamber is free to flow downwardly to the chamber outside the open position In the closed position, the baffle defines the bottom of the chamber.

In this aspect of the invention, the receiver has a horizontal length of dumping baffle extending inside the chamber and further includes a dust and material fines filter between the inlet conduit and the outlet conduit for use in dust and materials The fines collect dust and material fines before entering the vacuum outlet conduit, and also include a blower for guiding the air to the filter to clean the remaining dust and material fines of the filter. The dumping baffle is rotatably movable between an open position and a closed position; the body of the receiver is wider than the height; when the chamber is empty, the dumping baffle swings to the closed position under the influence of gravity The filter is a cloth filter; the inlet for the granular plastic material is in a surface that extends vertically on the side of the receiver.

In yet another part of this aspect of the invention, the outlet for the air/vacuum flow is in the lateral surface of the receiver; the body of the receiver has a convex triangular cross section; the chamber has at least one convex wall; It is longer than its height and the chamber is longer than its width.

In still another aspect facing the same, the present invention provides a method of processing a granular resin material into a finished product by molding or extrusion. Or a semi-finished product, for temporary storage of a granular resin material, wherein the method comprises horizontally feeding an air/vacuum gas stream with a granular resin material into the chamber under vacuum. The method is carried out by a reduction in the velocity of the gas stream in the chamber such that the particulate material entrained into the gas stream falls to the bottom of the chamber. The method then continues to draw air from the chamber to maintain a vacuum in the chamber. The method can be summarized by releasing the vacuum from the chamber. Due to the weight of the granular material remaining in the bottom of the chamber, the baffle defining the bottom of the chamber swings to the open position allowing the particulate material resting on the baffle to fall from the chamber. In this aspect of the invention, the air/vacuum gas stream preferably passes through a cloth filter. More preferably, the flow of air through the cloth filter is performed prior to releasing the vacuum from the chamber. Still preferably, the gas stream passes horizontally through a cloth filter that is perpendicular to the gas stream.

In yet another aspect facing the center thereof, the present invention provides a receiver having a horizontally elongated chamber, wherein the chamber has a convex triangular cross section. The chamber includes a dump baffle that defines a bottom apex of a triangular cross section. The horizontal air/vacuum resin material mixture inlet is connected to the chamber, and the horizontal air/vacuum outlet is directed from the chamber and connected to the chamber. The modular control portion is removable from the housing, the chamber is present in the housing, and the manually actuatable clamp releasably retains the control section into engagement with the housing.

In yet another aspect facing the center thereof, the present invention provides a receiver having a longitudinally elongated body having an interior chamber extending the length of the body. A horizontal conduit for use as an inlet for an air/vacuum gas stream with a granular resin material is in communication with the interior chamber of the elongated body. A horizontal air/vacuum outlet conduit is connected to the interior chamber of the elongated body. In A dust and material fines filter between the mouthpiece and the outlet conduit is configured to collect dust and material fines and is positioned to filter the airflow prior to entering the vacuum outlet conduit. The receiver further includes an air blowing device for guiding the air to the filter in a direction opposite to a direction of the vacuum/air flow when the airflow flows through the filter to clean the remaining dust and material fines of the filter, and tilting The discharge baffle extends horizontally along a lower end of the inner chamber, wherein the dump baffle is movable between an open position and a closed position, wherein the granular plastic material in the chamber is freely movable to the open position The lower flow flows outside the chamber, and at the closed position, the baffle defines the bottom of the chamber.

In a preferred embodiment of the receiver, the dump baffle is pivotable between a closed position and a housing open position. The outlet dump baffle weight is swung to the closed position under gravity and remains closed in response to the vacuum being drawn in the receiver, allowing the receiver to be filled. Once the suction of the housing portion of the receiver (the granular resin material transferred to the receiver by the air/vacuum flow is concentrated in the housing portion), the vacuum is turned off, no longer having the receiver dumped The baffle maintains an internal vacuum force in the closed position. The weight of the granular resin material on the dumping baffle causes the dumping baffle to move to the open position, and the granular resin material falls down to the outside of the receiver due to gravity.

10‧‧‧ Receiver

12‧‧‧Inlet pipe

14‧‧‧Piston cylinder (air cylinder)

16‧‧‧Dumping baffle

16A‧‧‧ end part (triangle part)

16B‧‧‧Triangle part

16C‧‧‧ longitudinal extension

16D‧‧‧main longitudinal extension

16E‧‧‧ longitudinal extensions

17‧‧‧Control Department

18‧‧‧Control Department Enclosure

20‧‧‧shell

22‧‧‧Filter

24‧‧‧Latch (clamp, lock)

28‧‧‧Export line (export pipe)

30‧‧‧First end plate (front end plate)

32‧‧‧First bottom flange

32A‧‧‧ Ears (lip part)

34‧‧‧Second bottom flange

34A‧‧‧ ears

36‧‧‧ side

36L‧‧‧ side

36R‧‧‧ side

38‧‧‧Unloading trough (slot, outlet trough)

42‧‧‧Top of the casing

46‧‧‧First Intermediate Board

48‧‧‧Second intermediate board

50‧‧‧front plate (front casing plate)

52‧‧‧Back board

54‧‧‧Exhaust flange

60‧‧‧Returning device (blasting device)

68‧‧ ‧ sales

74‧‧‧Inlet end horizontal blowback support plate

76‧‧‧Outlet side horizontal board

78‧‧‧ vertex

80‧‧‧ horizontal support plate

82‧‧‧ mounting flange (front mounting flange)

84‧‧‧ Rear mounting flange

86‧‧‧Filter opening

88‧‧‧Accessories

90‧‧‧ Backend board

102‧‧‧Open interior

104‧‧‧ spacers

106‧‧‧Hooks

108‧‧‧ discs

110‧‧‧First internal compartment (first compartment)

112‧‧‧Second internal compartment (second compartment)

A‧‧‧ arrows

B‧‧‧Arrow

C‧‧‧Arrow

1 is an isometric view of a low profile receiver in accordance with the present invention with the top, left and left ends of the receiver visible.

Figure 2 is the front or front of the receiver of Figure 1 View and the receiver dump baffle is in the open position. Sections 8-8 and 9-9 in Figure 2 indicate where the cross-sectional views presented in Figures 8 and 9 herein are taken.

3 is a front elevational view of the right or rear end of the receiver illustrated in FIGS. 1 and 2 with the receiver dumping baffle in an open position.

4 is a right side view of the receiver illustrated in FIGS. 1, 2, and 3 with the receiver dumping baffle in an open position.

5 is a front elevational view of the left side of the receiver illustrated in FIGS. 1, 2, 3, and 4 with the receiver dumping baffle in an open position.

6 is a view of the top of the receiver illustrated in FIGS. 1, 2, 3, 4, and 5.

Figure 7 is a view of the bottom of the receiver illustrated in Figures 1 through 6, with the dump baffle in an open position for discharging the granular resin material.

Figure 8 is a cross-sectional view of the receiver illustrated in Figures 1 through 7 taken along the line of Figure 2 and arrows 8-8, wherein the dump baffle has been illustrated in an open position.

9 is a cross-sectional view of the receiver illustrated in FIGS. 1-8 taken along line 2 and FIG. 9-9, wherein the dump baffle is depicted in a closed position.

10 is an exploded perspective view of the receiver illustrated in FIGS. 1-9, showing the modular configuration of the receiver.

Figure 11 is an exploded isometric view of the receiver illustrated in Figures 1 through 10 showing details of the receiver component.

Figure 12 is a specific diagram of the receiver illustrated in Figures 1 through 11 An exploded isometric view of the member, and lines and arrows are provided to illustrate the flow of the transmitted vacuum/air flow through the receiver and the transferred particulate resin material.

Figure 13 is a cross-sectional end elevational view of the lower portion of the left end of the receiver illustrated in Figures 1 through 12, depicting the discharge chute and the left triangular portion of the dumping baffle, with the dumping baffle in the open position .

Figure 14 is a cross-sectional end elevational view of the lower portion of the receiver illustrated in Figures 1 through 13, depicting the discharge chute and the left triangular portion of the dump baffle with the dump baffle in the closed position.

Referring to the drawings and in particular to Figure 1, a receiver in accordance with the present invention is generally designated 10. The horizontal material inlet pipe 12 receives a moving air/vacuum gas flow with a granular resin material for temporarily storing the granular resin material in the receiver 10. The horizontal material inlet tube 12 is mounted in a vertically oriented first end plate 30. Also mounted in the first end plate 30 is an air actuated piston cylinder assembly 14 that controls the flow of air/vacuum through the receiver 10 in a switching manner as explained below.

The control unit 17 of the receiver 10 is maintained in the control unit enclosure 18, wherein the control unit enclosure 18 is illustrated in FIG. The receiver 10 further includes a housing 20 as a granular material storage container or chamber for temporarily storing the granular resin material therein. The control portion cladding 18 and the components therein are secured to the housing 20 via clip-on latches 24, two of which are visible in FIG. These clip-on latches facilitate the receiver 10 The quick disassembly allows the control portion 17 in the control unit enclosure 18 to be quickly removed from the remainder of the receiver 10 for adjustment, repair, replacement of filters, and the like.

The receiver 10 also includes a horizontal outlet line 28 through which the air/vacuum gas stream is drawn by a vacuum pump, which is not shown in the drawings. In Fig. 1, the inlet end horizontal blowback support plate 74 is visible, extending from below the control portion 17, and the control portion 17 is invisible or unlabeled in Fig. 1, but is displayed in other drawings. And give the label.

As shown in Figure 1 and particularly preferably illustrated in Figures 2 and 3, the housing 10 has a convex curved side 36, and these sides are designated 36L and 36R for the left and right sides, respectively. (As used herein, the word "left" refers to the portion of the receiver's lateral surface visible in Figure 1, and is for the right side of the user in Figures 2 and 3.) Still primarily referring to Figure 2 and Referring also partially to FIG. 3, at the bottom of the side 36, extending from the sides 36L and 36R and secured to the sides 36L and 36R are a first bottom flange 32 and a second bottom flange 34, wherein the first bottom flange 32 It is longer in the vertical direction than the second bottom flange 34. The second bottom flange 34 is substantially obscured by the end portion 16A of the dump baffle 16 in FIG.

Still referring primarily to Figure 2, the dump baffle 16 is mounted for pivotal movement relative to the granular resin material discharge chute 38, which is comprised of a first bottom flange 32 and a second bottom projection. A vertically downwardly extending portion of the rim 34 is formed, and the granular resin material discharge chute 38 runs the longitudinal length of the portion of the housing 20 of the receiver 10 (in the drawing, the first bottom The portions of the flange 32 and the second bottom flange 34 that extend vertically downward are not independently assigned numbers. The first bottom flange 32 and the second bottom flange 34 have ears designated as 32a and 34a that extend perpendicularly to the housing side 36 and facilitate manufacture, maintenance, and operation of the receiver 10.

The left and right sides 36 of the housing 20 are designated 36L and 36R for the left and right sides of the receiver 10, with the left side of the receiver 10 being the side visible in FIG. When the discharge chute 38 is opened because the dumping baffle 16 is in the open position illustrated in FIGS. 2, 3, and 13, the granular resin material stored in the casing 20 passes through the discharge chute due to gravity. 38 flows down the receiver 10.

In Figure 2, the construction and configuration of the receiver 10 is particularly well shown. The receiver 10, and particularly its housing portion 20, is wider at the apex or angle where the housing top 42 meets the sides 36L, 36R; these vertices or angles are indicated at 78 in FIG. The ratio of receiver 10 width (measured as the distance between apex 78) and the height of receiver 10 (from the high point of housing top 42 to horizontal support plate 80), both of which are visible in Figure 2, is Approximately 5:3 means that the housing 20 of the receiver 10 is about 40% wider than its height.

In FIG. 2, the dump baffle is depicted in an open position such that particulate resin material can exit the receiver 10 via the discharge chute 38. The left triangular portion of the dump baffle 16 is indicated at 16A in FIG. The longitudinal extension of the dump baffle 16 is indicated at 16C in Figure 2 and can only be seen as a pair of closely spaced lines. The longitudinally extending portion 16C of the dump baffle 16 runs the longitudinal length of the housing 20. The dumping baffle 16 is pivotally wound A pair of pins 68 are moved and one of the pair of pins 68 is depicted in FIG.

Referring next to Figure 2, the horizontal material inlet tube 12 and the pneumatic piston cylinder 14 are clearly shown as being mounted in the front panel 50. It is noted in Figure 2 that the control portion cladding 18 defines the outer periphery of the control portion 17, and is slightly inside the housing top 42 and the housing sides 36L, 36R. The control unit enclosure 18 is coupled to the horizontal support plate 80 illustrated in FIG. Still referring to FIG. 2, the mounting flange 82 is securely fastened and connected to the inlet end horizontal blowback support plate 74 with a portion extending vertically downward therefrom. The downwardly extending portion of the front mounting flange 82 is provided with a pair of apertures for mounting the receiver 10 to an associated adjacent device when needed.

Referring to Figure 3, the generally convex triangular shape of the housing portion 20 of the receiver 10 in cross section is well shown, and the housing top 42 and the housing sides 36L, 36R again assume their convex triangular shape. The outlet of material exit line 28 is clearly located in rear end plate 90. The rear mounting flange 84 is mounted on the outlet end horizontal support plate 76 and has an upwardly extending portion for mounting the receiver 10 on the auxiliary device. The first bottom flange 32 is illustrated in FIG. In Figure 3, the dump baffle 16 is again visible, and the right triangular portion 16B is clearly shown, and the longitudinal portion 16C is again shown as a pair of lines indicating that the longitudinal portion 16C is running away from the viewer and is vertical The viewer in Figure 3. The outlet end level plate 76 is shown in FIG.

Referring to Figure 4, all of the receiver 10, housing 20, control housing 18, material inlet tube 12, air piston cylinder 14 and material outlet line 28 are well represented. In Figure 4, the dumping flap 16 is rotated around it. The two pins 68 that are turned are clearly shown, as are the longitudinally extending portions 16C of the dump baffle 16. The main longitudinally extending flange 16D and the smaller longitudinally extending flange 16E are also visible in FIG. As noted above, FIG. 4 depicts the dumping baffle 16 in an open position as depicted in FIGS. 2, 3, and 13.

Referring to Figure 5, the first bottom flange 32 is well shown to extend the length of the housing 20 longitudinally to define a portion of the exit slot 38. The lip portion 32A represents the lip portion of the first bottom flange 32; the lip portion 32A is also illustrated in FIG. In Fig. 5, the dump baffle 16 is slightly obscured by the first bottom flange 32, as can be understood by comparing Fig. 5 with Fig. 2, and it is noted that Fig. 5 is a side view, and Fig. 2 is End view. The pin 68 on which the dumping baffle 16 is mounted and rotated about it is again depicted in Figure 5, as is the material inlet tube 12, the piston cylinder 14 and the outlet line 28, and the inlet end is horizontally blown back to the support plate. 74 and the exit end horizontal support plate 76 are also the same.

In Figure 6, the top of the receiver 10, the material inlet tube 12, the outlet line 28, the top 42, the latch 24, the control portion cladding 18, and the outlet end horizontal support plate 76 are all depicted. The dump baffle 16, its various parts, and the various components associated therewith are obscured from the perspective of the top view provided in FIG.

Referring to Figure 7, the bottom of the receiver 10 is shown with the dump baffle 16 in the open position and the discharge flange 54 is apparent, as is the open interior 102 of the housing 20. A pin 68 about which the dumping baffle 16 rotates is shown at either end of the dumping baffle 16 to engage the dumping baffle 16 Left and right triangular portions 16A, 16B. For the other views discussed above, the material inlet tube 12, the piston cylinder 14, the inlet end horizontal blowback support plate 74, the outlet end horizontal support plate 76, the outlet line 28, and the side 36L of the receiver 10 are shown in a similar manner. , 36R.

Referring primarily to Figures 8 and 9, in Figure 8, the dump baffle 16 is shown in an open position in which the particulate resin material stored in the housing 20 is lifted by gravity. The housing portion 20 of 10 is discharged and discharged by itself.

Still referring to FIG. 8, the control portion for the receiver 10 is generally designated 17 and includes two internal compartments, designated 110 and 112 in FIG. The first interior compartment 110 is delimited by a front end panel 30 and a first intermediate panel designated 46 in FIG. The first compartment 110 is further delimited by a horizontal support panel 80 and a suitable cover member, the horizontal support panel 80 effectively forming the floor of both the first compartment 110 and the second compartment 112, suitable cover for illustration The clarity of the formula is not shown in the drawings. The control portion 17 further includes a second compartment 112 which is delimited by the first intermediate plate 46 and the second intermediate plate 48, by the horizontal support plate 80, and by the same upper plate, in order to improve the clarity of the drawing, the same The upper plate is not shown in the drawing.

The first compartment 110 is effectively under ambient pressure and the second compartment 112 must be maintained airtight. Accordingly, the compartment 112 is preferably fabricated by welding the first intermediate plate 46 and the second intermediate plate 48, the horizontal support plate 80, and the top plate, not shown and not shown, and the side not shown in the drawings. To ensure the airtightness of the second compartment 112. Such airtightness The configuration is necessary for the normal operation of the blowback device 60 described below.

Also visible in FIG. 8 is a disc 108 that is secured to a piston rod that extends from the piston cylinder 14. When the piston cylinder 14 is actuated, the disc 108 acts to close the end of the outlet line 28, i.e., its inlet opening, in a gastight manner.

Surrounding the outlet line 28 is a spacer 104 that is held in position by a cotter pin 106 relative to the outlet line 28. Spacer 104 is preferably resilient and acts to maintain the airtight engagement required for exit line 28 through rear plate 52 and through front casing plate 50. The front housing panel 50 shown in Figure 8 is not to be confused with the front end panel 30, which is also visible in Figures 8 and 2. The outlet line 28 mates with an unlabeled suitable fitting that receives the disc 108 to create a hermetic seal when the piston cylinder 14 is actuated and the disc 108 occupies the position depicted in FIG.

Referring to Figure 9, the cloth filter 22 is preferably mounted within a suitable aperture formed in the front panel 50. Adjacent to the filter 22 and mounted on the first intermediate plate 46 is a blower device 60 of the type disclosed in U.S. Patent No. 8,753,432. The blower unit 60, sometimes referred to as a "back blower", has its air vent outlet axially aligned with the filter 22 and oriented such that when the blowback device 60 delivers an air rush, the air rush is directed to the filter. The device 22 is in contact with the filter 22 at a substantially vertical angle. This air blast provided by the blowback device 60 is preferably provided before each receiver 10 is filled with a granular resin material. The blowback device 60 keeps the filter 22 clean and dusty Fines are blown out of the filter 22 and fall to the bottom of the open interior 102 of the housing 20. The use of the blowback device 60 and the filter 22 ensures that the air/vacuum airflow entering the second compartment 112 through the filter 22 and entering the vacuum pump does not carry dust or fines.

The desired air/vacuum flow is drawn through the filter 22 by the action of the vacuum pump drawing the air/vacuum flow through the outlet tube 28. Referring to Figures 8 and 9, when the disc 108 is removed from the aperture defining the inlet of the outlet tube 28 (i.e., when the disc 108 is removed from the second intermediate panel 48), due to the second compartment The hermetic configuration of 112 creates a free flow of air/vacuum airflow from the open interior 102 of the housing 20 via the filter 22 and into the outlet tube 28. For the same reason, when the piston cylinder 14 is actuated and the disc 108 closes the orifice of the outlet tube 28, the vacuum in the open interior 102 of the housing 20 is effectively relieved.

The weight of any granular resin material resting in the open interior 102 of the housing 20 causes the dump baffle 16 to rotate to the position illustrated in Figure 2, wherein the discharge chute 38 is open. At this position, the granular resin material stored in the casing 20 flows downwardly out of the casing 20. It is to be noted that the left triangular portion 16A and the right triangular portion 16B of the dumping baffle 16 are constructed in a geometrical shape such that they do not have any granular resin material in the casing 20, and they are dumped with the rest. The baffle 16 will rotate to the closed position depicted in FIG. When a vacuum is applied by drawing air/vacuum airflow through the outlet line 28 below atmospheric pressure, the vacuum is transmitted back to the interior 102 of the housing 20 via the second compartment 112 and the filter 22, thereby helping to tilt The baffle 16 is held in the closed position. Since the pressure in the open interior 102 is below atmospheric pressure, this creates an inward closing force for the dump baffle 16.

Referring to Figure 10, the modular construction of the receiver 10 is illustrated. The control portion 17 is easily removed from the housing 20 to replace the filter 22 as needed. A screw connection and gasket as shown in Figure 8 are used to hold the control portion 17 in operative engagement with the housing 20. These connections facilitate rapid disassembly of the receiver 10 when service is required or the filter 22 must be replaced. The jig 24 is easily loosened to release the control portion 17 from the housing 20. In FIG. 8, the second intermediate plate 48 is spaced apart from the front plate 50. The latch 24 can be disengaged by providing a suitable resilient spacer 114, 116 at the aperture defining the inlet of the outlet line 28, thereby allowing the control portion 17 to be removed from the substantial sliding of the housing 20. .

Figure 11 shows the receiver and all of its components, and the modular construction and separation of the control portion 17 and the housing 20 is immediately apparent.

As described above, the dumping baffle 16 has two triangular portions, indicated at 16A and 16B, respectively, which are located at both ends of the dumping baffle 16. The triangular portion 16A is depicted in Figure 2 and the triangular portion 16B is depicted in Figure 3. Operative between the triangular portions 16A, 16B is a longitudinally elongated portion 16C of the dump baffle 16. The elongated portion 16C is more clearly visible in Figure 9 (and Figure 7), wherein the dump baffle 16 is illustrated in Figure 9 as closing the discharge chute 38 and avoiding any downward flow of particulate resin material The position of the housing 20 of the receiver 10. The horizontally elongated portion 16C of the dump baffle 16 is indicated by the closely spaced double lines of Figures 2 and 3.

Preferably, there are three cables connected to the receiver control that are routed from the power supply unit to the receiver, which preferably provides power to the vacuum pump to establish a vacuum to draw the air-material mixture into the receiver. . Both of these lines from the power supply are preferably controlled by a vacuum pump that supplies the receiver with the required 24 volts. The third line is the signal line. When the receiver requires a granular resin material and the dump baffle is closed, the third line provides power to the signal line and the microprocessor knows to turn on the receiver 10.

Each receiver 10 preferably includes such a microprocessor. Furthermore, the microprocessor is preferably arranged in the power supply unit. The microprocessor in the receiver preferably detects that the dump guard has been closed and informs the power unit associated with the vacuum pump to run a set time that was previously calculated and input into the microprocessor. Alternatively, the receiver 10 may operate until the high material level sensor in the receiver 10 is covered, meaning that the receiver 10 is filled with granular resin material. The timing portion of the microprocessor functions as a safety pause, so that the receiver 10 does not operate forever in the event of clogging of the granular resin material or in the event that the granular resin material cannot be obtained from the source.

The housing top 42 and the housing sides 36L, 36R are all outwardly curved. The outward curvature of the housing top 42 and the housing sides 36L, 36R resists atmospheric pressure exerting forces on the sides 36L, 36R and the housing top 42. Due to the vacuum present in the housing portion of the receiver 10 during operation (actually slightly below atmospheric pressure), the force of atmospheric pressure tends to push the housing top 42 and the housing sides 36L, 36R inward. Side 36L, The curved, convex shape of the 36R and the housing top 42 facilitates the small size, compact design, and high capacity characteristics of the receiver 10.

The dump baffles 16 and in particular the triangular portions 16A, 16B of the dump baffle 16 are configured for pivotal movement of the dump baffle 16 about the pin 68. As described above, the configuration and weight of the dump guard 16 and, in particular, the weight of the left and right triangular portions 16A, 16B and the longitudinal portion 16C of the dump guard 16 cause the dump guard 16 to rotate as shown in FIG. The closed position. When the dumping baffle 16 reaches the closed position, the vacuum drawn by the vacuum pump maintains the dumping baffle 16 in the closed position.

The air cylinder 14 effectively controls the flow of air through the receiver 10, as well as air or a mixture of vacuum and resin material. As shown in Figure 8, the air cylinder 14 includes a shaft portion extending therefrom and a circular disc 108 is mounted at the end of the shaft portion 70; the circular disc is indicated at 108 in Figure 8. When the air cylinder 14 is actuated, the shaft portion 70 extends therefrom and the circular disc 108 closes the opening of the outlet line 28.

During operation, as the receiver 10 is receiving particulate resin material that is entrained into the vacuum/air flow (which enters through the material inlet tube 12), dumping due to the suction force of the vacuum pump drawn through the outlet line 28 The flap 16 is held in the closed position. Once the vacuum is closed, either by the closing of the vacuum pump or by the actuation of the air cylinder 14 closing the outlet line 28, and thereby eliminating further extraction of the vacuum via the receiver 10, or if the weight of the granular resin material is changed Large enough to overcome the vacuum suction that tends to keep the dump baffle 16 in the closed position, as the dump baffle 16 is due to the resin material in the receiver 10 The weight is forced to open, and the dumping flap 16 is moved to the open position.

During operation, the dump baffle 16 is opened due to the weight of the granular resin material particles remaining in the housing 20 of the receiver 10 and resting on the dumping baffle 16. Without the weight of the granular resin material, or once the granular resin material has flowed out of the receiver, the dumping baffle is configured by gravity and the dumping baffle (especially the left and right triangular portions 16A, 16B of the dumping baffle) With the geometry of the longitudinally extending portion 16C), the swing is closed. In the normal suspended position, the dump baffle 16 is closed except for the slight gap between the baffle surface and the edge of the opening to the open interior 102 of the housing 20.

When the receiver dumps the load of the granular resin material just outside the receiver 10 and, for example, stays in a funnel (not shown in the drawings and not part of the receiver 10) located below the dump baffle 16 When a pile of granular resin material is applied, the dumping baffle 16 can be kept open by a pile of granular resin material. In this case, when the granular resin material is poured, the dumping baffle 16 is opened and the granular resin material may not have enough space from the receiver 10 due to the presence of the pile located below the receiver 10 at the time of the previous dumping. Flow completely out.

As the granular resin material is used by the associated processing machine, any particulate resin material remaining in the receiver 10 flows out. When the granular resin material previously dumped under the receiver 10 is lowered to the level below the dumping baffle 16, the dumping shutter 16 is swing-closed, and another batch of granular resin material can be loaded into the receiver 10. . The vacuum pulls the dump baffle 16 tightly to create a vacuum seal that allows the material to be filled with a granular resin The air/vacuum gas stream is vacuum fed into the open interior 102 of the housing 20.

In Figure 12, the receiver 10 is schematically depicted. Not all of the components of the receiver 10 are assigned numbers or are shown in detail in Figure 12 to enhance the clarity of the drawings. Figure 12 depicts the flow of vacuum/air and material through the receiver 10.

Specifically, a vacuum/air flow with a granular resin material enters the receiver 10 via the inlet tube 12 as indicated by the dashed line and arrow A. The vacuum/air particulate material mixture passes into the interior of the housing 20, wherein the vacuum/air flow due to having entered a larger air space volume (i.e., the open interior of the housing 20) is from guidance to The velocity of the air/vacuum gas flow in the conduit of the inlet tube 12 is greatly reduced, and the granular resin falls out of the vacuum/air flow in the downward direction due to gravity.

At lower speeds, particles of resin material fall out of the air/vacuum gas stream. The downward flow of this granular resin material is indicated by a long broken line and an arrow B in FIG. The vacuum/air flow drawn by the vacuum pump not shown in Fig. 12 is sucked out from the inside of the casing 20, as indicated by the arrow C in Fig. 12 and the line formed by the long and short dash lines. of. In a direction opposite to the direction of the arrow A, the vacuum/air mixture flows out from the inside of the casing 20 in the direction toward the control portion 17 of the receiver 10. The vacuum/air flow passes through the filter 22 where fines and dust are removed from the vacuum/air mixture moving through the filter 22 and the filter 22 is installed in the filter opening 86. The vacuum/air mixture with dust and fines removed is turned and accessed via fitting 88 In the exit line 28, it travels through the exit line 28, exits the receiver 10 and proceeds to the vacuum pump. When a sufficient amount of weight capable of opening the dumping baffle 16 is accumulated, the granular resin material falls out of the open interior 102 of the casing 20 in response to gravity.

The main advantage of the material inlet tube 12 and the outlet line 28, which are horizontal and enter and exit the receiver 10 via apertures formed in the vertically extending surface of the receiver 10, respectively, is that the receiver 10 has a very low height, This provides space for other components in the plastic resin processing equipment.

10‧‧‧ Receiver

12‧‧‧Inlet pipe

14‧‧‧ piston cylinder

16‧‧‧Dumping baffle

20‧‧‧shell

28‧‧‧Export line (export pipe)

74‧‧‧Inlet end horizontal blowback support plate

86‧‧‧Filter opening

88‧‧‧Accessories

A‧‧‧ arrows

B‧‧‧Arrow

C‧‧‧Arrow

Claims (23)

A receiver comprising: a longitudinally elongated body having an internal chamber extending along a length of the body; a horizontal conduit serving as an inlet for an air/vacuum flow with a granular resin material, the horizontal conduit and the elongated The internal chamber of the body is in communication; a horizontal air/vacuum outlet conduit is connected to the internal chamber of the elongated body; a dumping baffle extends horizontally along a lower end of the internal chamber, the dumping baffle Moving between an open position and a closed position at which the granular plastic material in the chamber is free to flow downwardly outside the chamber, where the baffle defines the chamber The bottom part of the room. The receiver of claim 1, wherein the dumping baffle extends the horizontal length of the internal chamber. The receiver of claim 1, further comprising: a dust and material fines filter between the inlet conduit and the outlet conduit for collecting dust and material fines prior to entering the vacuum outlet conduit; An air blowing device for guiding the air to the filter to clean the remaining dust and material fines of the filter. The receiver of claim 1, wherein the dumping baffle is rotatably moveable between the open position and the closed position. The receiver of claim 1, wherein the body is wider than its height. The receiver of claim 1, further comprising a pin connected to the body, the dumping baffle swinging to a closed position under the influence of gravity. The receiver of claim 4, further comprising a pin connected to the body, the dumping baffle swinging to a closed position under the influence of gravity. The receiver of claim 1, wherein the filter is a cloth filter. The receiver of claim 1, wherein the inlet for the granular plastic material is located in a side surface of the receiver. The receiver of claim 1, wherein the outlet for the air/vacuum flow is located in a side surface of the receiver. The receiver of claim 1, wherein the body has a convex triangular cross section. The receiver of claim 1, wherein the chamber has at least one convex wall. The receiver of claim 1, wherein the chamber is longer than its height. The receiver of claim 1, wherein the chamber is longer than the width thereof. A method for temporarily storing a granular resin material before being processed into a finished product or a semi-finished product by molding or extrusion, the method comprising: bringing air with the granular resin material/ Vacuum air flow in vacuum Feeding flat into the chamber; reducing the velocity of the gas stream in the chamber such that particulate material entrained into the gas stream falls to the bottom of the chamber; continuing to draw the gas stream from the chamber to maintain The vacuum in the chamber; in response to the granular material resting on the baffle, horizontally releasing the vacuum from the chamber, thereby allowing the baffle defining the bottom of the chamber to swing to the open position. The method of claim 15, further comprising passing the air stream through the cloth filter after the particulate material has fallen off the bottom of the chamber. The method of claim 16, wherein the passing of the gas stream through the cloth filter is performed prior to releasing the vacuum from the chamber. The method of claim 17, further comprising passing the gas stream horizontally through a cloth filter that is perpendicular to the gas stream. The method of claim 17, further comprising passing the gas stream horizontally through a cloth filter that is perpendicular to the gas stream. A method for temporarily storing a granular resin material before being processed into a finished product or a semi-finished product by molding or extrusion, the method comprising: bringing air with the granular resin material/ A vacuum gas stream is fed into the chamber along a first horizontal direction under vacuum; the gas stream is passed through the filter in a second horizontal direction; and the gas stream is released from the chamber along the first horizontal direction. A receiver comprising: a horizontal elongated chamber in the housing; the chamber having a convex triangular cross section; a chamber dumping baffle defining a bottom apex of the triangular section: a horizontal air/vacuum resin material mixture inlet connected to the chamber; horizontal An air/vacuum outlet leading from the chamber and connected to the chamber; a control portion removable from the housing; a manually actuatable clamp for releasably retaining the control portion The housing is joined. A receiver comprising: a longitudinally elongated body having an internal chamber extending along a length of the body; a horizontal conduit serving as an inlet for an air/vacuum flow with a granular resin material, the horizontal conduit and the elongated The internal chamber of the body is in communication; a horizontal air/vacuum outlet conduit is connected to the internal chamber of the elongated body; a dust and material fines filter is disposed between the inlet conduit and the outlet conduit for entry Collecting dust and material fines before the vacuum outlet conduit; blowing means for guiding the air to the filter to clean the remaining dust and material fines of the filter; dumping the baffle along the interior The lower end of the chamber extends horizontally and is movable between an open position and a closed position, at which the chamber is in the open position The granular plastic material in the chamber is free to flow down to the outside of the chamber, where the gate defines the bottom portion of the chamber. A receiver comprising: a chamber in a housing; the chamber having a convex triangular cross section; a chamber dumping baffle defining a bottom of the cross section: a horizontal air/vacuum resin material mixture inlet connected to the chamber And a horizontal air/vacuum outlet directed from the chamber and connected to the chamber.