Frictional balance unit and balance sorter

Abstract

The application relates to a friction type balance wheel unit and a balance wheel sorting machine, and belongs to the technical field of express sorting equipment. Rubber washers are arranged at the two ends of a transmission drum supporting shaft to tightly abut against a support, and vibration is buffered; a supporting pin is used to connect the drum supporting shaft and a tower-shaped spring, the transmission drum is tightly abutted against upper and lower drums by spring elasticity; the end of the supporting pin is embedded into a bottom assembly hole of the support in cooperation with a stepped damping sleeve, and all the components in the supporting assembly work in cooperation, so that the transmission drum supporting shaft is completely separated from the support, wear caused by direct contact between the supporting shaft and the balance wheel support is avoided, the service life is prolonged, and the sorting efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of express sorting equipment technology, and in particular to friction-type balance wheel units and balance wheel sorting machines. Background Technology A swing wheel sorting machine is a type of guide wheel sorting equipment, mainly composed of a swing wheel unit, a servo swing module, and a frame. Based on instructions from the front-end information system, the servo swing module executes corresponding actions to rotate the swing wheel unit, completing the straight-line or left-right swing sorting action for packages.

[0002] In related technologies, the unit structure of the friction wheel sorting machine uses a mounting pin and spring structure at the mounting groove of the upper roller fixing rod to facilitate the quick installation and removal of the unit cover plate. Furthermore, by sliding the lifting rod up and down in the lifting hole and tightening the locking bolt, the installation height of the lifting rod and the cover plate can be adjusted. The protrusion height of the wheel can be adaptively adjusted according to the different thicknesses of the packages.

[0003] However, the fixing rod of the lower transmission roller in the above structure is in direct contact with the double-ear cover plate seat. During use, the roller fixing rod is constantly vibrating. After a period of use, the cover plate seat will be worn with a notch, causing the transmission roller to sink and separate from the driven roller, making it unable to drive the two upper driven rollers to rotate, which greatly reduces the sorting effect of the swing wheel sorter. Summary of the Invention

[0004] Therefore, it is necessary to provide a friction-type balance wheel unit and a balance wheel sorting machine to address the above problems, thereby solving the problem that wear causes the transmission roller to sink, eventually leading to the separation of the transmission roller from the two driven rollers on the upper layer of the balance wheel and transmission failure.

[0005] A friction balance wheel unit includes a balance wheel support. The balance wheel support is divided into an upper layer and a lower layer. The upper layer is provided with a first assembly groove and a second assembly groove located on both sides of the first assembly groove. The lower layer is provided with a third assembly groove and an assembly hole. An active roller is installed in the first assembly slot, a driven roller is installed in the second assembly slot, and a transmission roller is configured in the third assembly slot via a support shaft. A support assembly is added below the support shaft, the support assembly comprising: A support pin has a short shaft segment, a connecting segment and a long shaft segment connected in sequence, wherein the short shaft segment is inserted into a first through hole; A tower-shaped spring is fitted onto the long shaft section; The shock absorber sleeve has a sleeve opening, a protrusion at the bottom of the sleeve opening, and a second through hole at the top of the sleeve opening; The long shaft section is inserted into the second through hole of the shock absorber sleeve, and the protrusion mates with the assembly hole. The support assembly creates a gap between the support shaft and the balance wheel bracket.

[0006] In one embodiment, rubber washers are fitted at both ends of the support shaft, and the rubber washers are in close contact with the balance wheel bracket.

[0007] In one embodiment, the rubber washer is disposed between the stepped surface of the drive roller support shaft and the swing wheel bracket; wherein, the inner ring size of the rubber washer matches the outer diameter of the stepped surface of the support shaft, and the outer ring size of the rubber washer is larger than the outer contour size of the third mounting groove; the rubber washer is used to limit the axial displacement of the drive roller and buffer vibration.

[0008] In one embodiment, one side of the drive roller abuts against the driving roller, and the other side abuts against the driven roller.

[0009] In one embodiment, when the driving roller rotates, it drives the transmission roller by friction. After being driven by the driving roller, the transmission roller drives the driven roller by friction at the contact end with the driven roller on the other side.

[0010] In one embodiment, the first assembly slot is located in the middle of the upper layer, and two second assembly slots are symmetrically arranged on both sides of the first assembly slot; two third assembly slots are symmetrically arranged on both sides of the lower layer; and the assembly hole is located at the bottom of the lower layer.

[0011] In one embodiment, the tower-shaped spring is a conical helical spring, with the large end diameter matching the outer diameter of the sleeve and the small end diameter matching the outer diameter of the long axis end of the stepped support pin.

[0012] In one embodiment, the top of the balance wheel support is also provided with a balance wheel cover plate.

[0013] In one embodiment, the short shaft section, connecting section and long shaft section of the support pin adopt an integrated connection structure.

[0014] A balance wheel sorting machine includes the aforementioned friction-type balance wheel unit.

[0015] The aforementioned friction-type balance wheel unit and balance wheel sorting machine support the support shaft through a support component, creating a gap between the support shaft and the balance wheel bracket. This avoids wear caused by direct contact between the support shaft and the balance wheel bracket, fundamentally solving the transmission failure problem caused by the support shaft sinking after the balance wheel bracket is worn into a notch. This application also has the following advantages: In this application, rubber washers are added to both ends of the support shaft of the drive drum, which can absorb the vibration energy generated by the high-speed rotation of the drive drum through the rubber washers. The tower-shaped spring structure in the support component of this application generates nonlinear elastic force when compressed. Specifically, it provides basic elastic force when lightly wrapped, and when heavily wrapped, the compression enhances the elastic force as the diameter of the bottom of the spring gradually increases, thereby maintaining the elastic support effect at all times. In this application, the long shaft section of the support pin is inserted into the second through hole of the damping sleeve, and the vibration energy is further dispersed to the damping sleeve through the tower spring. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this application.

[0017] Figure 2 for Figure 1 Enlarged schematic diagram of part A in the diagram.

[0018] Figure 3 for Figure 1 A structural diagram in the front view.

[0019] Figure 4 This is a schematic diagram of the balance wheel support structure of this application.

[0020] Figure 5 This is a schematic diagram of the supporting pin structure of this application.

[0021] Figure 6 This is a schematic diagram of the tower-shaped spring of this application.

[0022] Figure 7 This is a schematic diagram of the shock-absorbing pin structure of this application.

[0023] In the diagram: 1. Balance wheel support; 2. Balance wheel cover plate; 3. Driven roller; 4. Driven roller; 5. Transmission roller; 6. Support shaft; 7. Rubber washer; 8. Support pin; 9. Tower spring; 10. Shock absorber sleeve; 101. First assembly slot; 102. Second assembly slot; 103. Third assembly slot; 104. Assembly hole; 601, First through hole; 801. Short shaft section; 802. Connecting section; 803. Long shaft section; 1001, sleeve opening; 1002, protrusion; 1003, second through hole. Detailed Implementation

[0024] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0025] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0026] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0029] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0030] See Figures 1-3 The diagram shows a schematic of the structure of a friction balance wheel unit according to an embodiment of this application. The friction balance wheel unit provided in this embodiment includes a balance wheel support 1, a balance wheel cover plate 2, an active roller 3, a driven roller 4, a transmission roller 5, and a support assembly. The transmission roller 5 abuts against the active roller 3 on one side and against the driven roller 4 on the other side. When the active roller 3 rotates, it drives the transmission roller 5 through friction, and the transmission roller 5 in turn drives the driven roller 4 to rotate.

[0031] like Figure 4 As shown, in some embodiments, the balance wheel support 1 adopts a layered design, including an upper layer and a lower layer; The upper layer has a first assembly groove 101 in the middle, and a second assembly groove 102 symmetrically arranged on both sides; the lower layer has a third assembly groove 103 symmetrically arranged on both sides, and an assembly hole 104 at the bottom center.

[0032] In some embodiments, the driving roller 3 is installed in the first assembly groove 101, the two driven rollers 4 are respectively installed in the second assembly groove 102, and the transmission roller 5 is assembled in the third assembly groove 103 via the support shaft 6.

[0033] In some embodiments, the support assembly includes a support pin 8, a tower spring 9, and a shock-absorbing sleeve 10; like Figure 5 As shown, the support pin 8 further includes a short shaft section 801, a connecting section 802 and a long shaft section 803, with the short shaft section 801 being integrally connected to the long shaft section 803 through the connecting section 802; The short shaft section 801 is inserted into the first through hole 601 at the bottom of the support shaft 6, so that the support pin 8 is fixedly connected to the support shaft 6; the long shaft section 803 extends to the bottom of the balance wheel bracket 1.

[0034] like Figure 6 As shown, the tower-shaped spring 9 is a conical helical spring, sleeved on the long shaft section 803. Its small end diameter matches the outer diameter of the long shaft section 803, and its large end diameter matches the outer diameter of the sleeve opening 1001 of the shock-absorbing sleeve 10.

[0035] In some embodiments, the shock-absorbing sleeve 10 includes a sleeve opening 1001, a protrusion 1002, and a second through hole 1003; The second through hole 1003 allows the long shaft section 803 to be inserted; the protrusion 1002 is located at the bottom of the sleeve 1001 and is fixed with the assembly hole 104 by interference fit; the sleeve 1001 accommodates the large diameter end of the tower spring 9.

[0036] The support assembly creates a gap between the support shaft 6 and the balance wheel bracket 1 to avoid direct contact; the tower spring 9 provides non-linear elastic force: when lightly wrapped, the basic elastic force maintains transmission contact; when heavily wrapped, the spring compression enhances the elastic force, ensuring that the transmission roller 5 is always in close contact with the driving roller 3 and the driven roller 4, and the vibration energy generated by the high-speed rotation of the transmission roller 5 is transmitted to the damping sleeve 10 for dispersion through the tower spring 9.

[0037] In some embodiments, the rubber gasket 7 is sleeved on the stepped surfaces at both ends of the support shaft 6 and closely adheres to the inner wall of the swing wheel bracket 1; the inner ring size of the rubber gasket 7 matches the outer diameter of the stepped surface of the support shaft 6, and the outer ring size is larger than the contour size of the third assembly groove 103, thereby limiting the axial displacement of the transmission roller 5 and absorbing vibration.

[0038] In some embodiments, the mounting hole 104 is located at the bottom of the lower layer of the balance wheel bracket 1 and is interference-fitted with the protrusion 1002 of the shock-absorbing sleeve 10.

[0039] In some embodiments, the first through hole 601 of the support shaft 6 allows the short shaft section 801 of the support pin 8 to be inserted, thereby achieving suspension support for the support shaft 6 through the support pin 8.

[0040] In some embodiments, the protrusion 1002 of the shock-absorbing sleeve 10 is embedded in the mounting hole 104, the sleeve opening 1001 faces upward to receive the tower-shaped spring 9, and the second through hole 1003 fixes the end of the long shaft section 803.

[0041] In practice, the workflow of this application includes: A servo motor drives the active roller 3 to rotate, which in turn drives the transmission roller 5 through friction. The drive roller 5 transmits power to the driven rollers 4 on both sides, pushing the package to move.

[0042] Furthermore, when the package is pressed above the drive roller 5, the support shaft 6 presses down on the support pin 8, and the tower spring 9 compresses and deforms to provide adaptive elasticity, ensuring close contact between the rollers.

[0043] In other embodiments, a swing wheel sorting machine is also provided, comprising multiple friction-type swing wheel units arranged according to a sorting path, and controlling the direction of each unit through a servo swing module to realize straight-line or sorting of packages (such as left / right diversion).

[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A friction-type balance wheel unit, comprising a balance wheel support (1), characterized in that, The balance wheel support (1) is divided into an upper layer and a lower layer. The upper layer is provided with a first assembly groove (101) and a second assembly groove (102) located on both sides of the first assembly groove (101). The lower layer is provided with a third assembly groove (103) and an assembly hole (104). The first assembly slot (101) is equipped with a drive roller (3), the second assembly slot (102) is equipped with a driven roller (4), and the third assembly slot (103) is equipped with a transmission roller (5) via a support shaft (6). One side of the drive roller (5) abuts against the driving roller (3), and the other side abuts against the driven roller (4); A support assembly is added below the support shaft (6), the support assembly comprising: The support pin (8) has a short shaft section (801), a connecting section (802) and a long shaft section (803) connected in sequence, wherein the short shaft section (801) is inserted into the first through hole (601) at the bottom of the support shaft (6); A tower-shaped spring (9) is sleeved on the long shaft section (803); The shock-absorbing sleeve (10) has a sleeve opening (1001), a protrusion (1002) located at the bottom of the sleeve opening (1001), and a second through hole (1003) located at the top of the sleeve opening (1001). The large end diameter of the tower spring (9) matches the outer diameter of the sleeve (1001), and the small end diameter matches the outer diameter of the long shaft end of the support pin (8). The long shaft section (803) is inserted into the second through hole (1003) of the shock-absorbing sleeve (10), and the protrusion (1002) is engaged with the assembly hole (104); The support assembly creates a gap between the support shaft (6) and the balance wheel bracket (1). Rubber washers (7) are fitted at both ends of the support shaft (6), and the rubber washers (7) are in close contact with the balance wheel bracket (1). The rubber gasket (7) is disposed between the stepped surface of the support shaft (6) and the balance wheel bracket (1); The outer ring size of the rubber gasket (7) is larger than the outer contour size of the third assembly groove (103); The rubber gasket (7) is used to limit the axial displacement of the drive roller (5) and buffer vibration; When the active roller (3) rotates, it drives the transmission roller (5) through friction. After the transmission roller (5) is driven by the active roller (3), it drives the driven roller (4) through friction at the contact end with the driven roller (4) on the other side.

2. The friction balance wheel unit according to claim 1, characterized in that, The first assembly slot (101) is located in the middle of the upper layer, and two second assembly slots (102) are symmetrically arranged on both sides of the first assembly slot (101); two third assembly slots (103) are symmetrically arranged on both sides of the lower layer; the assembly hole (104) is located at the bottom of the lower layer.

3. The friction balance wheel unit according to claim 1, characterized in that, The top of the balance wheel support (1) is also provided with a balance wheel cover plate (2).

4. The friction balance wheel unit according to claim 1, characterized in that, The short shaft section (801), connecting section (802) and long shaft section (803) of the support pin (8) adopt an integrated connection structure.

5. A swing wheel sorting machine, characterized in that, Includes the friction balance wheel unit as described in any one of claims 1-4.

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