Conveyor package accumulation chute assembly

Abstract

A conveyor system has a conveyor having a conveying surface arranged to move and separate side-by-side packages. Off-grade packages are pushed off the lateral edges of the selected conveyor onto a downwardly sloped chute for removal or recycling. Packages often accumulate before being removed from the chute and cause the conveyor system to stop. To maximize the number of packages that can accumulate in the chute before stopping the conveyor system, the geometry of a conventional chute can be modified to direct packages to fill the lower corner of the chute rather than forming a single, narrow stack of packages. The improved chute assembly incorporating the anti-tower chute geometry utilizes a floor comprised of multiple surfaces that are angled at their common edges to direct packages toward the bottom corner of the chute according to the geometry and momentum of the packages, thereby preventing "towering" of the packages.

Description

Technical Field

[0001] This invention generally relates to take-off chute constructions for parcel and packaging conveyors, providing a cost-effective solution for maximizing the accumulation of parcels on push-block sorting machine accumulation chutes. Background Technology

[0002] This invention relates to material handling, and more particularly to methods and apparatus for conveying packages, and mechanisms for controlling the position of packages on a package accumulation chute of an unloading conveyor.

[0003] Conventional conveyor systems transport large quantities of packages at high speeds, especially in the parcel delivery industry, where packages are sorted according to desired categories. The efficiency of package handling can be significantly reduced when multiple smaller packages, irregularly sized or shaped items, or a mixture of large and small items pass along a conveyor as a single unit.

[0004] Problems arise when scanning and separating packages and parcels as aggregated units rather than traveling in single file through the conveyor system. Large packages may obscure smaller parcels, and small, side-by-side packages may be misidentified and incorrectly sorted when passing through the barcode scanner simultaneously. Furthermore, sorting problems occur when packages do not move in predictable lateral patterns. Such packages may include irregularly shaped packages, such as bags or other flexible containers with unevenly distributed weight; packages with extreme width or length; and partially filled packages, such as a bag of mail.

[0005] A singulator is a device in a conveyor system used to organize items into a single line. Singulators are commonly used in logistics, manufacturing, and distribution to ensure that items are properly spaced and aligned for further processing. Singulators help prevent congestion and improve efficiency by separating and aligning items that would otherwise leave the conveyor in a pile. However, it is difficult to rearrange clusters of items into a single line when the package is significantly larger than its other dimensions, or when the package has unequal loads, partial fill, or long and narrow sides. Single-line assembly is particularly challenging over short distances and dwell times, which are desirable for efficiency and space saving. Packages with unequal weights, irregular dimensions, and off-center centers of gravity may be repeatedly offset at the output of the single-line conveyor. Occasionally, some packages may not be positioned in a single line but may be conveyed side-by-side, i.e., traveling in pairs. The combined width of two packages can cause problems downstream in the conveyor system.

[0006] A typical separator conveyor system used for sorting packages in typical applications includes a device that transforms a randomly arranged flow of items into a single line. Items are conveyed using both forward and lateral forces to align packages along one side of the conveyor system. Packages that cannot be sorted and arranged on the main line are separated by a device that applies a lateral force to the package, guiding it to the opposite edge of the conveyor, where it falls from the conveyor into a discharge chute. A typical conveyor system configuration recirculates laterally removed items upstream to the main conveyor to provide an additional opportunity for proper separation and alignment.

[0007] Traditional unloading chutes have only a single, uniformly sloping, flat bottom. Packages with similar momentum leave the conveyor and enter the unloading chute at roughly the same position, causing them to stack on top of each other rather than accumulating across the width of the chute. When the unloading chute becomes full, sensors such as photodetectors or limit switches stop the main conveyor line until more space is available in the chute. This towering stacking of packages causes the detection sensors to activate before the chute's overall volume is filled. The stopping of the main conveyor reduces operational efficiency. Therefore, what is needed is an economical means to prevent the stacking of packages in the chute, allowing for efficient use of the chute's overall volume. Summary of the Invention

[0008] This invention generally relates to unloading chute configurations for parcel and packaging conveyors, providing a cost-effective solution for maximizing parcel accumulation on push-block sorting machine accumulation chutes. A conveyor system includes a conveyor that transports, aligns, and organizes randomly supplied items (including side-by-side items) received from an infeed conveyor into a single-line relationship. Items are conveyed to a separator unit with separation capabilities, the separator unit including a multi-channel conveyor assembly following the infeed conveyor. The separator is arranged aligned with and downstream of the infeed conveyor for receiving items from the infeed conveyor. Non-conforming parcels that cannot be properly aligned in a timely manner are pushed off the lateral edge of a selected conveyor onto a downwardly sloping chute for removal or recycling. One or more detection sensors monitor the top of the chute to ensure that packages do not overflow from the chute, thus preventing packaging from accumulating on the main line. If parcels accumulate in the chute faster than they are removed, the main line of the conveyor system stops.

[0009] To maximize the number of packages that can accumulate in the chute before the conveyor system stops, the geometry of conventional chutes can be modified to guide packaging to fill the lower corner of the chute, rather than forming a single, narrow stack. This narrow stacking of packages causes detection sensors to activate before the chute's overall volume is filled. The improved chute assembly utilizes a base plate composed of multiple surfaces angled at their common edges to guide the packages toward the lower corner of the chute based on their geometry and momentum, thus preventing a "towering" of packaging.

[0010] In a preferred embodiment, the first conveyor channel has a high-friction surface for forward conveying items along a vertical sidewall. A second conveyor channel adjacent to the first conveyor channel has a lower-friction surface, which incorporates both forward and lateral conveying forces, propelling the package forward and away from the first conveyor channel and sidewall. Once the package reaches the unloading chute, the second conveyor channel laterally guides the package until its center of gravity extends beyond the outer edge of the second conveyor channel, at which point a clear transfer of control occurs as the item falls into the unloading package accumulation chute. The chute then guides the package to a holding area or onto a secondary recycling conveyor system. The unloading chute includes a base plate composed of multiple angled sections (preferably at least three) to provide efficient package distribution and prevent package stacking in a tower-like manner within the chute.

[0011] The packages are turned from the second conveyor channel at an angle of 20 to 30 degrees and enter the chute. Each package spends a moment on a second surface 2, which is angled downwards relative to the lateral movement direction and upwards relative to the forward movement direction, to slow or stop the forward speed of the package. The package stopped in the forward movement direction then slides laterally down the chute toward a first surface 1, which is angled downwards relative to both the original lateral and forward movement directions of the package. A valley formed between the common edges of surfaces 1 and 2 guides the package to the lower left corner of the chute. After falling onto surface 2, the package, maintaining some forward momentum, can continue forward over the top edge of that surface, which forms a peak along an edge shared by surfaces 2 and a third surface 3. Surface 3 is angled downwards relative to both the original lateral and forward movement directions of the package. The package that has crossed the peak is guided toward the bottom right corner of the chute. As the packages accumulate in each corner of the chute, the middle is filled, and the entire chute is used to redirect and hold the packages. Once the chute is full, the packaging on surface 2 or 3 will block the photoelectric sensor or trigger another detection sensor that stops the main conveyor channel.

[0012] A method for accumulating packages in a conveyor pusher-type sorter accumulator to prevent stacking comprises or includes the following steps: incorporating an anti-tower stacking chute geometry into a package accumulating chute comprising a first surface, a second surface, and a third surface; and selecting an optimal conveyor turning position relative to the package accumulating chute geometry to turn packages moving forward on the main conveyor channel at an angle of 20 to 30 degrees onto the package accumulating chute. The chute comprises a base plate consisting of multiple segments seamlessly connected to each other, wherein packages first enter the package accumulating chute on a second surface angled downward relative to the lateral movement direction and upward relative to the forward movement direction to slow or stop the forward speed of the packages. Any packages stopped in the forward movement direction then slide laterally down the chute toward the first surface angled downward relative to both the original lateral movement direction and the forward movement direction of the packages, and the packages flow toward the valley formed between the common edges of the first and second surfaces to the lower left corner of the package accumulating chute. After falling onto the second surface, the package, maintaining forward momentum, continues forward along the top edge of the second surface, which forms a peak along an edge shared by the second and third surfaces, where the third surface is angled downwards relative to both the original lateral and forward movement directions of the package. Packages crossing the peak are guided toward the bottom right corner of the package accumulation chute. As packages accumulate in the first and second lower corners, the middle section of the package accumulation chute is filled entirely. When the package accumulation chute is filled to a selected level, packages accumulating on the second and / or third surfaces block photodetectors or trigger detection sensors that stop the main conveyor. Packages are guided to fill the first lower corner in the valley between the second and third surfaces. Typically, the first surface forms an angle of 20 to 22 degrees relative to the base plate along its outer edge, and the bottom edge slopes upwards at a small angle of less than 5 degrees toward the convergence of the first, second, and third surfaces.

[0013] The object of the present invention is to provide a package accumulation chute that reduces single-point stacking of packages, which prevents the chute from being fully utilized and causes excessive stops of the main conveyor.

[0014] The purpose of this invention is to provide a package accumulation chute having a base plate comprising a plurality of angled surfaces that guide packages to fill the bottom corners of a holding area, thereby increasing the total usable area of ​​the chute.

[0015] The purpose of this invention is to provide a package accumulation chute that can be easily segmented to improve its ability to transport packages between lines.

[0016] The object of the present invention is to provide a packing chute having a base plate comprising multiple seamlessly connected sections.

[0017] The object of this invention is to provide a means for collecting and redirecting packages traveling side-by-side, such that packages or items that cannot be aligned against the vertical sidewalls of the conveyor channel are conveyed forward and laterally toward the outer edge for storage in a discharge chute. Once aligned with the inlet of the discharge chute, the package moves laterally until its center of gravity is positioned outside the outer edge of the conveyor channel, at which point a clear transfer of control occurs as the item falls into the package accumulation chute.

[0018] The purpose of this invention is to provide the packaging with the optimal turning position relative to the geometry of the chute.

[0019] Other objects, features, and advantages of the invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings, which illustrate preferred embodiments of the invention. Attached Figure Description

[0020] A better understanding of the invention will be given by referring to the accompanying drawings, in which the same reference numerals denote the same parts in several views, and wherein: Figure 1 This is a perspective view of a conventional prior art conveying assembly, showing a feed conveyor with multiple skewed low-friction rollers that move packages forward and laterally, thereby transferring the packages across the conveying surface and onto a flat, angled package accumulation chute. Figure 2 This is a perspective view of a conveying assembly, showing a conventional conveyor of the prior art with multiple skew rollers that convey packages laterally and downward along a package accumulation chute with a single inclined surface, whereby a tower-like stacking problem occurs when packages are stacked onto and partially fill the accumulation chute of a push-block sorter. Figure 3 The prior art flat-bottomed chute is shown, which lacks the features of dispersing packaging flow and avoiding tower-like stacking, such as Figure 1 and Figure 2 The groove shown in the figure; Figure 4 It is a perspective view of a conveyor with multiple skewed low-friction rollers that move packages forward and laterally, thereby transferring the packages across the conveyor surface and onto a package accumulation chute (“PAC”) assembly having multiple angled surfaces that separate the packages sliding down the chute to prevent them from stacking before contacting the unloading conveyor. Figure 5 yes Figure 4 A perspective view of the package accumulation chute assembly shows the efficient distribution and accumulation of packages of various sizes and shapes on an angled surface due to the anti-tower stacking geometry. Figure 6 A PAC assembly consisting of multiple sections fastened to a frame is shown, having surface geometry for dispersing the wrapping flow and avoiding tower-like accumulation. Figure 7 This is a top view of the PAC, illustrating the angles of the first and second common edges relative to the forward and lateral movement directions; Figure 8a The diagram illustrates a preferred composite angle of the first angled surface, the second angled surface, and the third angled surface; Figure 8b The diagram illustrates the preferred angle of surface 1 relative to surface 2 along segment line xx; Figure 8c The diagram illustrates the preferred angle of the first common edge of segment line yy relative to the ground; Figure 8d The diagram illustrates the preferred angle of surface 2 relative to surface 3 along segment line zz; Figure 8e The diagram illustrates the preferred angle of the second common edge of segment line ww relative to the ground; Figure 9 This is a front plan view illustrating the angle of the third angled surface relative to the bottom terminating edge of the first and second angled surfaces; Figure 10 This is a perspective view of the proposed method for laterally transferring packaging from the main conveyor channel to a PAC including a deflector. Detailed Implementation

[0021] The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. As used herein, the singular forms “a,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore specify the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Unless specifically identified as an order of execution, the method steps, processes, and operations described herein should not be construed as requiring them to be performed in the particular order discussed or illustrated. It is also understood that additional or alternative steps may be employed.

[0022] When an element or layer is referred to as “on another element or layer,” “joined to,” “connected to,” or “linked to” another element or layer, it may be directly on, joined to, connected to, or linked to another element or layer, or an intermediary element or layer may be present. In contrast, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” or “directly linked to” another element or layer, an intermediary element or layer may not be present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between…” versus “directly between…”, “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items.

[0023] Although the terms first, second, third, etc., may be used herein to describe various elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another region, layer, or segment. Unless the context clearly indicates otherwise, terms such as “first,” “second,” and other numerical terms used herein do not imply order or sequence. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment.

[0024] For ease of description, spatial relative terms such as “internal,” “external,” “below,” “under,” “lower,” “above,” and “upper” may be used herein to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the figures. As used herein, the term “about” may be reasonably understood by those skilled in the art to mean slightly above or slightly below the stated value within a range of +10%.

[0025] Unless specifically identified as an order of execution, the method steps, procedures, and operations described herein should not be construed as requiring them to be performed in the particular order discussed or illustrated. It is also understood that additional or alternative steps disclosed herein may be employed in any of the various embodiments discussed herein, regardless of whether such additional or alternative steps are explicitly disclosed for use in the particular embodiments herein.

[0026] The term surface 1 is synonymous with the first surface, the term second surface is synonymous with surface 2, and the term third surface is synonymous with surface 3.

[0027] The terms "parcel" and "packaging" are synonymous.

[0028] The invention will now be described more fully below with reference to the accompanying drawings, in which preferred embodiments of the invention are illustrated. However, the invention may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. The same reference numerals throughout refer to the same elements.

[0029] Figure 1 The illustration depicts a conventional prior art conveying assembly, showing a feed conveyor 32, a first conveying channel with a high-friction belt 3, a second conveying channel with a low-friction roller 4 and a third conveying channel with a high-friction belt 5, a downstream conveyor 1, and a discharge chute 11, which includes a downwardly sloping transverse plane extending along the lateral edge of the third conveying channel 5.

[0030] like Figure 1 As shown, the inner edge 36 of the second conveyor channel 4, adjacent to the outer edge 38 of the first conveyor channel 3, is positioned at a slightly lower height along the lateral axis, such that packages resting on both the first and second conveyor channels 3 are securely held and pulled forward by the first conveyor channel 3, which has a high-friction surface. The lower-friction conveying surface of the second conveyor channel 4 is angled vertically upward from the outer edge 38 of the first conveyor channel 3 at a selected angle of up to 30 degrees, providing an upwardly sloping plane extending toward the third conveyor channel 5, such that the outer lateral edge 42 of the second conveyor channel 4 is equal to or slightly lower than the inner lateral edge 40 of the adjacent third conveyor channel 5, thereby causing the object to be laterally removed toward the discharge chute 11 as it moves forward on the slightly upwardly sloping plane. The discharge chute 11 includes a uniformly inclined downwardly sloping lateral plane that guides the package toward a recycling conveyor or holding area (not shown).

[0031] Figure 2 The illustration shows a prior art unloading chute 13 having a holding area 50 for accumulating defective or misaligned packages 52. Unsorted packages 51 move along a conveyor 54 in a forward direction 56 and a lateral direction 58, as indicated by position markers 60. The unsorted packages 51 are guided away from the conveyor 54 at an angle of approximately 20 to 30 degrees relative to the forward direction of movement 56. Accumulated packages 52 tend to move towards the bottom right corner 62 of the holding area 50 because the bottom plate 15 of the unloading chute 13 is uniformly inclined. Figure 3As illustrated, and therefore lacks the means to alter the forward and lateral momentum of the incoming packaging. Due to the tendency of the packaging to move toward the bottom right corner of the holding area, the accumulated packaging 52 eventually stacks to form a tower 64, which triggers a detector (not shown) that causes the conveyor 54 to stop, even though a considerable volume of the unloading chute 13 has not yet been utilized.

[0032] Figure 4 The diagram illustrates an improved package accumulation chute PAC 70. A conveyor 72 with multiple skewed low-friction rollers moves packages forward 74 and laterally 76, thereby transferring the packages across a conveyor surface and onto the PAC 70, which comprises, and substantially comprises, multiple angled surfaces to separate packages sliding down the chute, preventing stacking. In a preferred embodiment, the improved discharge chute 70 is formed by at least three angled surfaces that slope downward toward a holding region 78 in the lateral direction 76. A first angled surface 80 is angled downward in the forward direction 74, a second angled surface 82 is angled upward in the forward direction, and a third angled surface 84 is angled downward in the forward direction. These surfaces are arranged such that a peak is formed at a first common edge 86 between the first angled surface 80 and the second angled surface 82. A valley is formed at a second common edge 88 between the second angled surface 82 and the third angled surface 84. Valley 88 guides the packaging toward the bottom left corner 90 of the holding area 78. The first angled surface 80 terminates near the bottom right corner 92 of the holding area 78.

[0033] As by Figure 5 As indicated by conveyor position mark 94, the packages are turned from conveyor channel 96 and enter PAC 70 at an angle preferably 20 to 30 degrees. When the packages fall onto the chute, each package initially contacts the second angled surface 82. The upward angle of the second angled surface relative to the forward momentum of the package causes the package to slow down or stop in the forward direction 74. Packages that have lost all forward momentum will slide laterally down the chute along valley 88, thus being guided toward the bottom left corner 90 of holding area 78, such as the first exemplary package 98. Packages that retain some forward momentum after contacting the second angled surface 82 can continue forward across peak 86 between the second and third angled surfaces 84, and are thus guided toward the bottom right corner 92 of holding area 78, such as the second exemplary package 99. As the packages accumulate in the chute 70, the multiple angled surfaces of the base plate ensure that the packages are distributed across the entire width of the chute, and therefore the total accumulation of packages 100 does not result in a tower-like stacking of packages as seen in the prior art.

[0034] The improved PAC70 base plate, comprised of a first angled surface 80, a second angled surface 82, and a third angled surface 84, can be formed into a monolithic body through processes such as plastic injection molding, glass fiber lamination, carbon fiber lamination, or sheet metal bending. The retaining area 78 can be additionally formed as part of the monolithic body, or alternatively, can be fastened as a separate body to the bottom of the chute. Since the size of the chute can be increased for large operations, it may be more practical to alternatively install the chute in multiple sections, such as... Figure 6 As shown in the diagram, these sections are then fastened or welded together.

[0035] An exemplary embodiment of the multi-segment PAC 102 illustrates how multiple angled surfaces can be divided and secured to facilitate easier transport of manufactured parts. In an exemplary embodiment, the first angled surface 80 is composed of four coplanar segments 80a-80d secured to the frame 104. The second angled surface 82 is composed of two coplanar segments 82a-82b secured to the frame. The third angled surface 84 is composed of only a single panel secured to the frame. Additional gap-filling panels 106 may be installed to ensure a smooth transition between the conveyor and the PAC. A retaining area 78 is composed of two coplanar panels 78a-78b mounted below the terminating edge 108 of the chute 102 to ensure the package slides completely to the bottom. Furthermore, the PAC 102 includes sidewalls 110a and 110b to prevent the package from falling off the sides. The segmentation of the angled surfaces can be readily modified in shape or size by those skilled in the art, and the provided illustrations are by no means intended to limit the extent or variation of the segments.

[0036] Figure 7 The illustration shows a top plan view of the multi-segment PAC 102. As shown, the angle b1 of the first common edge 86 relative to the forward direction 74 is preferably 30 to 60 degrees, more preferably 40 to 50 degrees, and most preferably 42 degrees. The angle of the second common edge 88 relative to the lateral direction of the conveyor 76 is preferably 5 to 30 degrees, more preferably 10 to 20 degrees, and most preferably 14 degrees.

[0037] Figure 8 illustrates the differences between the two figures. Figure 7The preferred composite angles of angles b1 and b2 provided are along and across the first common edge 86 and the second common edge 88. With respect to the angle of the first common edge 86, the section line XX is orthogonal to angle b1. The angle a1 between the first angled surface 80 and the second angled surface 82 along the section line XX is preferably 4 to 12 degrees, and most preferably 9 degrees. The angle a3 of the first common edge 86 relative to the ground is taken along the section line YY, wherein angle a3 is preferably 10 to 25 degrees, and most preferably 15 degrees. With respect to the angle of the second common edge 88, the section line ZZ is orthogonal to angle b2. The angle a2 between the second angled surface 82 and the third angled surface 84 along the section line ZZ is preferably 10 to 30 degrees, and most preferably 22 degrees. The angle a4 of the second common edge 88 relative to the ground is taken along the section line WW, wherein angle a4 is preferably 10 to 25 degrees, and most preferably 17 degrees. Figure 9 The diagram shows that the angle c1 of the bottom edge 110 of the groove 70 parallel to the ground is preferably 10 to 30 degrees, and most preferably 17 degrees.

[0038] Packages can be guided into the chute by any means that provides forward and lateral movement, including skewed low-friction roller conveyors, which can be combined with high-friction conveyor surfaces such as one or more high-friction belts to control the flow and orientation of the packages. Fixed or powered deflectors, electric and / or pneumatic actuators, pushers or push-type actuators on slat conveyors can be used to remove or position packages conveyed on the conveyor at appropriate times and locations to optimize the separation efficiency of the package accumulation chute. For example, as Figure 10 As illustrated, the deflector 112 can pivot across the width of the conveyor system 114 to laterally redirect packages from the mainline along path 116 into the package accumulation chute 70.

[0039] The foregoing detailed description is provided primarily for clarity and should not be construed as limiting, as modifications will become apparent to those skilled in the art upon reading this disclosure and can be made without departing from the spirit and scope of the appended claims. Therefore, this invention is not intended to be limited to the specific examples presented above. Rather, it is intended to be covered within the spirit and scope of the appended claims.

Claims

1. A chute for a package accumulator in a conveyor pusher type sorting machine, comprising: The base plate is composed of at least three angled segments, each angled segment incorporating an anti-tower-like stacking chute geometry, the anti-tower-like stacking chute geometry including a first angled surface, a second angled surface, and a third angled surface that are inclined downward toward the holding area in the lateral direction. The first angled surface is angled downwards in the forward direction; The second angled surface is angled in the forward direction; The third angled surface forms a downward angle relative to both the original lateral movement direction and the forward movement direction of the package; A peak is formed at the first common edge between the first angled surface and the second angled surface; A valley is formed at the second common edge between the second angled surface and the third angled surface; The valley guides the packaging toward the bottom left first corner of the holding area; The first angled surface terminates near the bottom right second corner of the retaining region; and The central retaining area is located between the left first corner and the right second corner.

2. The conveyor pusher type sorting machine package accumulator chute according to claim 1, wherein, The angle between the first surface and the second surface is in the range of 4 degrees to 12 degrees.

3. The conveyor pusher type sorting machine package accumulator chute according to claim 1, wherein, The angle between the first surface and the second surface is in the range of 7.5 degrees to 10 degrees.

4. The conveyor pusher type sorting machine package accumulator chute according to claim 1, wherein, The angle between the third surface and the second surface is in the range of 10 degrees to 30 degrees.

5. The conveyor pusher type sorting machine package accumulator chute according to claim 1, wherein, The angle between the third surface and the second surface is in the range of 15 degrees to 25 degrees.

6. The conveyor pusher type sorting machine package accumulator chute according to claim 1, wherein, The angle between the third surface and the second surface is in the range of 18 degrees to 22 degrees.

7. The conveyor pusher type sorting machine package accumulator chute according to claim 1, wherein, The angle yy is within the range of 10 to 25 degrees above the ground.

8. The conveyor pusher type sorting machine package accumulator chute according to claim 1, wherein, The angle yy is within the range of 12 to 18 degrees above the ground.

9. The conveyor pusher type sorting machine package accumulator chute according to claim 1, wherein, The angle xx is within the range of 10 to 25 degrees above the ground.

10. The conveyor pusher type sorter package accumulator chute according to claim 1, wherein, The angle xx is within the range of 14 to 20 degrees above the ground.

11. The conveyor pusher type sorter package accumulator chute according to claim 1, wherein, The angle ww is in the range of 14 to 20 degrees above the ground.

12. The package accumulator chute of the conveyor pusher type sorter according to claim 1, further comprising a deflector that engages with the main conveyor channel for turning the package moving forward on the main conveyor channel at an angle of 20 to 30 degrees onto the package accumulator chute.

13. A method for accumulating packages in an accumulator of a conveyor pusher sorter to prevent stacking, comprising the following steps: The anti-tower-shaped stacking chute geometry is incorporated into the encapsulated stacking chute comprising a first surface, a second surface, and a third surface as described in claim 1. Select the optimal conveyor turning position relative to the geometry of the package accumulation chute; The package moving forward on the main conveyor channel is turned at an angle of 20 to 30 degrees onto the package accumulation chute, which includes a base plate consisting of multiple segments seamlessly connected to each other. The package first enters the package accumulation chute on a second surface that is angled downward relative to the lateral movement direction and upward relative to the forward movement direction to slow down or stop the forward speed of the package. Wherein, any package that stops in the forward movement direction will then slide laterally down the chute toward a first surface that is angled downward relative to both the original lateral movement direction and the forward movement direction of the package, and the package flows toward the valley formed between the common edge of the first surface and the second surface to the lower left corner of the package accumulation chute; After falling onto the second surface, the package, maintaining forward momentum, continues forward along the top edge of the second surface, which forms a peak along an edge shared by the second and third surfaces, wherein the third surface is angled downward relative to both the original lateral movement direction and the forward movement direction of the package; The package that crosses the peak is guided toward the bottom right corner of the package accumulation chute; As packages accumulate in the first and second lower corners, the middle section of the packaging accumulation chute is filled with the entire packaging accumulation chute. When the package accumulation chute is filled to a selected level, the package accumulation on the second and / or third surfaces blocks the light or triggers a detection sensor that stops the main transport channel.

14. The method for accumulating packages in an accumulator of a conveyor pusher sorter according to claim 13, wherein, The valley guide wrapping between the second surface and the third surface fills the first lower corner.

15. The method for accumulating packages in an accumulator of a conveyor pusher sorter according to claim 13, wherein, The first surface is at an angle of 20 to 22 degrees relative to the base plate along its outer edge, and the bottom edge slopes upward at a small angle of less than 5 degrees toward the convergence of the first surface, the second surface, and the third surface.

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