Sorting track and optical sorting machine

Abstract

This application discloses a sorting track fixed to a frame. The sorting track includes sorting components and screening components. Multiple sets of sorting components are movable along the direction of the sorting track. Each sorting component includes sorting rollers and a fixed base. Each set of sorting components has two sets of sorting rollers distributed along the front-to-back direction. The sorting rollers are adapted to be openable and closable on the fixed base along the front-to-back direction. The fixed base is movable along the direction of the sorting track. The screening component is fixed to the frame. When the sorting rollers are closed, the sorting rollers on the same set of sorting components are adapted to abut against the outer wall of a shaft-shaped workpiece and clamp the workpiece. The purpose of this application is to provide a stable, durable, and highly efficient sorting track.

Description

Technical Field

[0001] This application relates to the field of workpiece sorting, and in particular to a sorting track. Background Technology

[0002] Currently, sorting tracks are commonly used in production lines, in conjunction with various types of inspection and testing equipment. After workpieces pass through the sorting track and the inspection / testing equipment, the track is controlled to separate qualified workpieces into two groups, and unqualified workpieces into three groups, thus achieving the separation of qualified and unqualified products.

[0003] However, existing sorting tracks have the following drawbacks:

[0004] (1) The general screening components are usually cylinder mechanisms and stepper design. When it is necessary to remove defective products, it is necessary to control the workpiece to be stationary relative to the cylinder in order to facilitate the removal of defective workpieces. The sorting track needs to control the workpiece to be inspected to start and stop continuously, which can easily cause additional impact on the motor, resulting in a decrease in the durability of automation and a reduction in service life.

[0005] (2) The sorting track with step-by-step design has low sorting efficiency. Since each sorting process requires the workpiece to be inspected to be stationary relative to the screening components, the sorting speed of the sorting track cannot be increased. The reason is that even if the running speed is increased in an attempt to increase the sorting efficiency of the sorting track, the sorting speed cannot be improved due to the need for more frequent start-stop.

[0006] (3) For shaft-shaped workpieces, since the workpieces are long, the method of using a cylinder mechanism to directly impact the workpieces to remove unqualified workpieces is easy to cause the long shaft-shaped workpieces to get stuck on the sorting track, causing the sorting equipment to report errors, which is not conducive to improving production efficiency. Summary of the Invention

[0007] One objective of this application is to provide a stable, durable, and highly efficient sorting track.

[0008] Another objective of this application is to provide a stable, durable, and highly efficient optical sorting machine.

[0009] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0010] A sorting track is fixed on a frame. The sorting track includes sorting components and screening components. The sorting components are multiple sets and movable along the direction of the sorting track. Each sorting component includes sorting rollers and a fixed base. Each set of sorting components has two sets of sorting rollers distributed in a front-back direction. The sorting rollers are adapted to be openable and closable on the fixed base in the front-back direction. The fixed base is movable along the direction of the sorting track. The screening component is fixed on the frame. When the sorting rollers are closed, the sorting rollers on the same set of sorting components are adapted to abut against the outer wall of the shaft-shaped workpiece and clamp the workpiece. When the inspection component detects that the workpiece is unqualified, the screening component is adapted to drive the sorting rollers to open, causing the unqualified workpiece to fall vertically and separate from the sorting rollers.

[0011] Using a sorting roller that can be opened and closed to hold the workpiece to be inspected, and using a screening component to drive the sorting roller to open, so that the unqualified workpiece falls vertically and separates from the sorting roller, has the following advantages: (1) Since the screening component is fixed relative to the frame, using the screening component to control the opening of the sorting roller so that the unqualified workpiece falls vertically can avoid the sorting track controlling the workpiece to be inspected to start and stop repeatedly, thereby reducing the damage to the motor caused by frequent start and stop; (2) Since the fixed seat can move along the sorting track direction, and the sorting roller is set in the front and back direction in a fixed position, it can be opened and closed. Fixed seat, so in actual use, the sorting roller can be controlled to be in an open or closed state by using the screening component during the movement of the fixed seat, thereby changing from a step sorting method to a continuous sorting method, thereby increasing the sorting efficiency and improving the efficiency of automated operation; (3) Since the sorting roller is suitable for clamping the workpiece, and when the sorting roller is in an open state, the workpiece can fall in the vertical direction. Therefore, compared with the workpiece rejection method of directly impacting the workpiece with the cylinder assembly, the shaft workpiece is not easy to get stuck on the sorting track, which further improves the durability of the sorting track.

[0012] As a preferred embodiment, each set of sorting components is provided with two sets of fixed seats, which are respectively located at the left and right ends of the sorting roller. The fixed seats are provided with sliding grooves along the front-back direction. The left and right ends of the two sets of sorting rollers are provided with sliding protrusions that match the sliding grooves. The sorting rollers are adapted to be slidably connected to the sliding grooves through the sliding protrusions. An opening and closing component is connected between the two sets of sorting rollers. The screening component is adapted to drive the opening and closing component to move, and simultaneously drive the opening and closing component to make the sorting rollers move in opposite directions or towards each other along the sliding grooves.

[0013] As a preferred embodiment, each sorting assembly includes a first sorting roller and a second sorting roller, and the opening and closing assembly includes a first connecting rod and a second connecting rod. The first and second connecting rods are in two sets and are respectively disposed on the left and right sides of the first and second sorting rollers. The proximal ends of the first and second connecting rods are rotatably hinged, and the distal ends of the first and second connecting rods are rotatably hinged to sliding protrusions on the same side of the first and second sorting rollers, respectively. The length of the first connecting rod is the same as the length of the second connecting rod. The screening assembly is adapted to move vertically upward and drive the hinge points at the proximal ends of the first and second connecting rods upward, thereby driving the first and second sorting rollers to move backward simultaneously and be in an open state.

[0014] As a preferred embodiment, an auxiliary plate is also provided on the outer side of the fixed base. The auxiliary plate is provided with an auxiliary horizontal groove that is exactly the same as the projection of the sliding groove on the vertical plane. The sliding protrusion is adapted to slide synchronously in the auxiliary horizontal groove. The opening and closing assembly also includes a hinge column. The proximal ends of the first connecting rod and the second connecting rod are adapted to be rotatably connected through the hinge column. An auxiliary vertical groove is provided on the auxiliary plate in the vertical direction. The outer end of the hinge column is adapted to be slidably connected in the auxiliary vertical groove in the up and down direction.

[0015] As a preferred embodiment, the opening and closing assembly includes an opening and closing seat, an opening and closing block, and an opening and closing rod. One end of the opening and closing rod is connected to the inner end of the hinge column, and the other end of the opening and closing rod is connected to the top of the opening and closing block. The opening and closing seat has an opening and closing groove that matches the opening and closing block in the vertical direction. The opening and closing block is slidably connected to the opening and closing seat in the vertical direction through the opening and closing groove. A fixing rod is provided on the outer side of the opening and closing seat, and the opening and closing seat is fixed to the inner side of the auxiliary plate by the fixing rod. The screening assembly is adapted to drive the opening and closing block to move in the vertical direction and realize the opening and closing action of the sorting roller.

[0016] As a preferred embodiment, a spring is provided between the hinge column and the fixed rod. When the sorting roller is in the closed state, the spring is compressed due to the gravity of the opening and closing block, and the downward part of the opening and closing block protrudes from the opening and closing seat. When the inspection component detects that the workpiece is unqualified, the screening component is adapted to drive the opening and closing block to move upward and open the sorting roller, so that the unqualified workpiece falls vertically and separates from the sorting roller. At this time, the spring is in the extended state, and then the spring returns to its original length and closes the sorting roller.

[0017] As a preferred embodiment, the sorting track further includes a chain assembly, which comprises two sprockets and multiple sets of chain links arranged end-to-end. The sprockets are adapted to drive the chain links to rotate. Each chain link has a pin arranged in the left-right direction, and the pin is fixedly connected to the fixing rod. The pin is adapted to fix the sorting component to the chain link through the fixing rod. A dust cover is provided on the outer side of the chain assembly and is fixed to the frame. An auxiliary track matching the sliding protrusion is arranged around the inner side of the dust cover. The outer end of the sliding protrusion is adapted to slide within the auxiliary track and control the relative position of the sorting component with respect to the frame. A clearance groove is provided in the middle of the dust cover, and the clearance groove is adapted to accommodate the chain assembly.

[0018] As a preferred embodiment, the chain assembly internally defines a receiving cavity, within which a separation component is fixedly disposed relative to the frame. The separation component includes a first sorting box and a second sorting box, both of which are inverted conical in shape. The second sorting box is fitted over the first sorting box. The tops of both the first and second sorting boxes extend upwards to form a first insertion portion and a second insertion portion, respectively. The second insertion portion is fitted over the outside of the first insertion portion, and the second insertion portion is offset from the first insertion portion in the front-rear direction to form the gap cavity. The sorting track also includes a knocking component, which is fixed to the frame and disposed at the rear of the screening component. The knocking component is adapted to move vertically and drive the sorting roller to open. The position of the gap cavity and the position of the knocking component are projected onto the horizontal plane, and the position of the first insertion part and the position of the screening component are also projected onto the horizontal plane. Qualified workpieces are adapted to enter the second sorting box through the gap cavity. The inner wall of the first insertion part defines a first insertion cavity, and unqualified workpieces are adapted to enter the first sorting box through the first insertion cavity.

[0019] As a preferred embodiment, the sorting track further includes a knocking component, which is fixedly mounted relative to the frame and disposed at the front of the sorting track. The knocking component is adapted to drive the opening and closing block to move upward in a vertical direction, control the sorting roller to open, and place the workpiece to be inspected.

[0020] An optical sorting machine is equipped with sorting tracks as described above.

[0021] Compared with the prior art, the beneficial effects of this application are as follows:

[0022] (1) Since the screening component is fixed relative to the frame, the screening component controls the opening of the sorting roller so that the unqualified workpieces fall vertically. This avoids the sorting track controlling the workpieces to be inspected to start and stop repeatedly, thereby reducing the damage to the motor caused by frequent start and stop. Furthermore, since the fixed seat can move along the sorting track, and the sorting roller can be opened and closed along the front and back direction, in actual use, the screening component can be used to control the sorting roller to be in an open or closed state during the movement of the fixed seat, thereby changing from a step sorting method to a continuous sorting method, thereby increasing the sorting efficiency and improving the efficiency of automated operation.

[0023] (2) Since the optical sorting machine uses optical components as inspection components, the inspection efficiency is high. The high efficiency sorting track mentioned above can better leverage the advantages of the optical sorting machine, further improve the efficiency of the optical sorting machine, and enhance the durability of the optical sorting machine. During operation, the shaft parts are less likely to jam relative to the sorting track, further improving the stability of the optical sorting machine. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of one embodiment of the optical sorting machine of this application, showing the sorting track, frame, and inspection components;

[0025] Figure 2 An exploded view of one embodiment of the sorting track of this application, showing the chain assembly and dust cover;

[0026] Figure 3 An isometric view of a sorting assembly according to one embodiment of the sorting track of this application, showing the structure of the sorting assembly;

[0027] Figure 4 An exploded view of a sorting component according to one embodiment of the sorting track of this application shows the position and structure of each component;

[0028] Figure 5 A further exploded view of the sorting assembly of one embodiment of the sorting track of this application shows the opening and closing assembly;

[0029] Figure 6 This is a front view of one embodiment of the sorting track of this application, showing the sorting rollers in the closed state;

[0030] Figure 7 This is a front view of one embodiment of the sorting track of this application, showing the sorting rollers in the open state;

[0031] Figure 8 An isometric view of an auxiliary plate for one embodiment of the sorting track of this application, showing the auxiliary horizontal slot and the auxiliary vertical slot;

[0032] Figure 9 This is a schematic diagram of an opening and closing assembly of one embodiment of the sorting track of this application, showing the opening and closing seat and the opening and closing block;

[0033] Figure 10 This is a schematic diagram of a chain assembly according to one embodiment of the sorting track of this application;

[0034] Figure 11 This is a cross-sectional view of one embodiment of the sorting track in this application, showing the receiving cavity;

[0035] Figure 12 This is a cross-sectional view of one embodiment of the sorting track in this application, showing the knock-in component and the knock-out component;

[0036] Figure 13 This is a schematic diagram of a separation component according to one embodiment of the sorting track of this application;

[0037] Figure 14 An exploded view of the separation component of one embodiment of the sorting track in this application;

[0038] Figure 15 The image shows an isometric view of a dust cover for one embodiment of the sorting track of this application, illustrating the auxiliary track and clearance groove of the dust cover.

[0039] In the diagram: 1. Sorting assembly; 11. Sorting roller; 111. Sliding protrusion; 112. First sorting roller; 113. Second sorting roller; 12. Fixed seat; 121. Sliding groove; 13. Opening and closing assembly; 131. First connecting rod; 132. Second connecting rod; 133. Hinge column; 134. Opening and closing seat; 1341. Opening and closing slide groove; 1342. Fixed rod; 135. Opening and closing block; 136. Opening and closing rod; 137. Spring; 14. Auxiliary plate; 141. Auxiliary horizontal groove; 142. Auxiliary vertical groove; 2. Screening assembly; 3. Chain assembly; 31. Sprocket; 32. Chain link; 321. Pin; 33. Receiving cavity; 4. Separation assembly; 41. First sorting box; 411. First insertion part; 4111. First insertion cavity; 42. Second sorting box; 421. Second insertion part; 422. Gap cavity; 43. Knockout hole; 5. Dust cover; 51. Auxiliary track; 52. Relief groove; 6. Knockout assembly; 7. Knockin assembly; 100. Inspection assembly; 200. Frame; 300. Workpiece. Detailed Implementation

[0040] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0041] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. They should not be construed as limiting the specific protection scope of this application.

[0042] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0043] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0044] The inventors of this invention have developed a sorting track, one embodiment of which is, for example... Figures 1 to 15 As shown, the sorting track is fixed on the frame 200. The sorting track includes a sorting component 1 and a screening component 2. The sorting component 1 has multiple sets and can move along the direction of the sorting track. The sorting component 1 includes a sorting roller 11 and a fixed seat 12. Each sorting component 1 is provided with two sets of sorting rollers 11 and distributed in the front-back direction. The sorting rollers 11 are adapted to be openable and closable on the fixed seat 12 in the front-back direction. The fixed seat 12 can move along the direction of the sorting track. The screening component 2 is fixed on the frame 200. When the sorting rollers 11 are closed, the sorting rollers 11 on the same set of sorting components 1 are adapted to abut against the outer wall of the shaft-shaped workpiece 300 and clamp the workpiece 300. When the inspection component 100 detects that the workpiece 300 is unqualified, the screening component 2 is adapted to drive the sorting rollers 11 to open and cause the unqualified workpiece 300 to fall vertically and separate from the sorting rollers 11.

[0045] It is worth noting that since the sorting assembly 1 has multiple sets that can move along the sorting track, and each set of sorting assembly 1 is provided with two sets of sorting rollers 11 distributed in the front-back direction, and the sorting rollers 11 are adapted to be opened and closed on the fixed base 12 in the front-back direction, in actual use, the workpiece 300 is not evenly distributed between adjacent sorting rollers 11. Only the two sorting rollers 11 on each set of sorting assembly 1 hold the workpiece 300 to be detected, while the adjacent sorting rollers 11 on two adjacent sets of sorting assembly 1 do not hold the workpiece 300. Therefore, in actual use, when the sorting roller 11 holding the workpiece 300 passes through the screening assembly 2, the screening assembly 2 can open the sorting roller 11 as needed. When the sorting roller 11 not holding the workpiece 300 passes through the screening assembly 2, the screening assembly 2 has sufficient time to reset, thus preparing for the next operation. Therefore, the sorting roller 11 does not need to be repeatedly started and stopped, and the screening assembly 2 can perform intermittent movement to realize the action or reset operation.

[0046] Using the openable sorting roller 11 to clamp the workpiece 300 to be inspected, and using the screening component 2 to drive the sorting roller 11 to open, so that the unqualified workpiece 300 falls vertically and separates from the sorting roller 11, has the following advantages: (1) Since the screening component 2 is fixed relative to the frame 200, using the screening component 2 to control the opening of the sorting roller 11 so that the unqualified workpiece 300 falls vertically can avoid the sorting track controlling the workpiece 300 to be inspected to start and stop constantly, thereby reducing the damage to the motor caused by its frequent start and stop; (2) Since the fixed seat 12 can move along the sorting track direction, and the sorting roller 11 is openable and closable in the front and back direction, On the fixed seat 12, in actual use, the sorting roller 11 can be controlled to be in an open or closed state by the screening component 2 during the movement of the fixed seat 12, thereby changing from a step sorting method to a continuous sorting method, thereby increasing the sorting efficiency and improving the efficiency of automated operation; (3) Since the sorting roller 11 is suitable for clamping the workpiece 300, and when the sorting roller 11 is in an open state, the workpiece 300 can fall in the vertical direction. Therefore, compared with the method of removing the workpiece 300 by directly impacting the workpiece 300 with the cylinder component, the shaft workpiece 300 is not easy to get stuck on the sorting track, which further improves the durability of the sorting track.

[0047] As a preferred option, such as Figures 3 to 5As shown, each sorting component 1 is provided with two sets of fixed seats 12, which are respectively located at the left and right ends of the sorting roller 11. The fixed seats 12 are provided with sliding grooves 121 along the front and back direction. The left and right ends of the two sorting rollers 11 are provided with sliding protrusions 111 that match the sliding grooves 121. The sorting rollers 11 are adapted to be slidably connected to the sliding grooves 121 through the sliding protrusions 111. An opening and closing component 13 is connected between the two sorting rollers 11. The screening component 2 is adapted to drive the opening and closing component 13 to move, and drive the opening and closing component 13 to make the sorting rollers 11 move in opposite directions or towards each other along the sliding grooves 121.

[0048] The opening and closing assembly 13 enables the sorting roller 11 to move openably and close relative to the fixed base 12. Specifically, the sliding protrusion 111 on the sorting roller 11 cooperates with the sliding groove 121 to achieve synchronous back-to-back or synchronous front-to-back movement of the sorting roller 11, thereby opening or closing the sorting roller 11 and controlling whether the sorting roller 11 clamps the workpiece 300, or sorts the workpiece 300 as needed. In this specific embodiment, the opening and closing assembly 13 can be a hydraulic transmission mechanism that can synchronously realize the back-to-back or front-to-back movement of the sorting roller 11 along the sliding groove 121. Furthermore, in this specific embodiment, such as... Figure 4 and Figure 5 As shown, the sliding protrusion 111 is detachably connected to the sorting roller 11 to facilitate the replacement of sorting rollers 11 with different diameters as needed, so as to achieve clamping of shaft workpieces 300 with different diameters.

[0049] As a preferred option, such as Figure 6 and Figure 7 As shown, each sorting assembly 1 includes a first sorting roller 112 and a second sorting roller 113. The opening and closing assembly 13 includes a first connecting rod 131 and a second connecting rod 132. The first connecting rod 131 and the second connecting rod 132 each have two sets and are respectively arranged on the left and right sides of the first sorting roller 112 and the second sorting roller 113. The proximal ends of the first connecting rod 131 and the second connecting rod 132 are rotatably hinged. The distal ends of the first connecting rod 131 and the second connecting rod 132 are respectively rotatably hinged to the sliding protrusion 111 on the same side of the first sorting roller 112 and the second sorting roller 113. The length of the first connecting rod 131 is the same as the length of the second connecting rod 132. The screening assembly 2 is adapted to move vertically upward and drive the hinge point of the proximal ends of the first connecting rod 131 and the second connecting rod 132 to move upward, thereby driving the first sorting roller 112 and the second sorting roller 113 to move backward at the same time and be in the open state. In this specific embodiment, the screening component 2 adopts a cylinder structure. By controlling the air intake and exhaust of the cylinder, the lifting and lowering of the piston rod is controlled, thereby realizing the driving of the screening component 2 on the hinge point near the first connecting rod 131 and the second connecting rod 132.

[0050] A first connecting rod 131 and a second connecting rod 132 are respectively provided, and the proximal ends of the first connecting rod 131 and the second connecting rod 132 are rotatably hinged. The distal ends of the first connecting rod 131 and the second connecting rod 132 are respectively rotatably hinged to the sliding protrusion 111 on the same side of the first sorting roller 112 and the second sorting roller 113. The length of the first connecting rod 131 is the same as the length of the second connecting rod 132, which can ensure that in actual use, the screening component 2 can move up and down in the vertical direction, thereby driving the hinge point to move up and down, thereby realizing synchronous opposite movement or opposite movement of the sorting roller 11.

[0051] like Figure 6 As shown, the sorting roller 11 is holding the workpiece 300. Assuming that the workpiece 300 does not meet the tolerance requirements according to the inspection component 100, the hinge point is driven upwards by the screening component 2. Figure 7 As shown, at this time, the sorting rollers 11 will move synchronously in opposite directions, thereby opening the sorting rollers 11 and causing the workpiece 300 to leave the sorting track in the vertical direction, thus achieving the sorting function.

[0052] As a preferred option, such as Figure 4 and Figure 8 As shown, an auxiliary plate 14 is also provided on the outer side of the fixed base 12. The auxiliary plate 14 is provided with an auxiliary horizontal groove 141 that is exactly the same as the projection of the sliding groove 121 on the vertical plane. The sliding protrusion 111 is adapted to slide synchronously in the auxiliary horizontal groove 141. The opening and closing assembly 13 also includes a hinge column 133. The proximal ends of the first connecting rod 131 and the second connecting rod 132 are adapted to be rotatably connected through the hinge column 133. An auxiliary vertical groove 142 is provided on the auxiliary plate 14 in the vertical direction. The outer end of the hinge column 133 is adapted to be slidably connected in the vertical direction in the auxiliary vertical groove 142.

[0053] The auxiliary plate 14 is set to fix the relative position of the sorting roller 11 with respect to the fixed seat 12. The auxiliary vertical groove 142 is used to control the hinge column 133 to move vertically in the auxiliary vertical groove 142. The auxiliary horizontal groove 141 is used to control the sliding protrusion 111 to slide open and close in the front and back direction in the auxiliary horizontal groove 141. At the same time, the sliding groove 121 and the auxiliary horizontal groove 141 can reduce the torque on the sliding protrusion 111 during the opening and closing process, thereby reducing the failure deformation of the sliding protrusion 111.

[0054] As a preferred option, such as Figure 4 , Figure 5 and Figure 9As shown, the opening and closing assembly 13 includes an opening and closing seat 134, an opening and closing block 135, and an opening and closing rod 136. One end of the opening and closing rod 136 is connected to the inner end of the hinge column 133, and the other end of the opening and closing rod 136 is connected to the top of the opening and closing block 135. The opening and closing seat 134 is provided with an opening and closing groove 1341 that matches the opening and closing block 135 in the vertical direction. The opening and closing block 135 is slidably connected to the opening and closing seat 134 in the vertical direction through the opening and closing groove 1341. A fixing rod 1342 is provided on the outer side of the opening and closing seat 134. The opening and closing seat 134 is fixed to the inner side of the auxiliary plate 14 through the fixing rod 1342. The screening assembly 2 is adapted to drive the opening and closing block 135 to move in the vertical direction and realize the opening and closing action of the sorting roller 11.

[0055] In this specific embodiment, such as Figure 4 As shown, the fixing rod 1342 is detachably connected to the opening / closing seat 134. The opening / closing assembly 13 includes the opening / closing seat 134, the opening / closing block 135, and the opening / closing rod 136 to facilitate the control of the hinge column 133's up-and-down movement by controlling the up-and-down movement of the opening / closing block 135, thereby controlling the forward-backward movement of the sorting roller 11 in the sliding groove 121 and the auxiliary transverse groove 141. Compared to the scheme of directly controlling the up-and-down movement of the hinge column 133, controlling the movement of the opening / closing block 135 is more precise, the structure is simpler, it is more convenient to use, and it is more durable. The fixing rod 1342 fixes the relative position of the opening / closing seat 134 relative to the auxiliary plate 14.

[0056] As a preferred option, such as Figure 4 As shown, a spring 137 is provided between the hinge column 133 and the fixed rod 1342. When the sorting roller 11 is in the closed state, the spring 137 is in a compressed state due to the gravity of the opening and closing block 135, and the downward part of the opening and closing block 135 protrudes from the opening and closing seat 134. When the inspection component 100 detects that the workpiece 300 is unqualified, the screening component 2 is adapted to drive the opening and closing block 135 to move upward and open the sorting roller 11, so that the unqualified workpiece 300 falls vertically and separates from the sorting roller 11. At this time, the spring 137 is in an extended state, and then the spring 137 returns to its original length and closes the sorting roller 11. Figure 6 As shown, the lower part of the opening and closing block 135 protrudes from the opening and closing seat 134, which facilitates the direct upward movement of the opening and closing block 135 by the screening component 2, and causes the screening component 2 to stop moving when it comes into contact with the opening and closing seat 134, thereby limiting the maximum upward movement distance of the screening component 2.

[0057] It is worth mentioning that another advantage of setting the opening and closing block 135 is that even in its natural state, due to the gravity of the opening and closing block 135, the downward part of the opening and closing block 135 can protrude from the opening and closing seat 134, thereby putting the sorting roller 11 in a clamped state. By utilizing the gravity of different opening and closing blocks 135, different clamping forces can be adjusted to meet different clamping force requirements. The spring 137 is set to facilitate reset. That is, after the opening and closing block 135 is driven upward by the screening component 2, the sorting roller 11 can quickly reset and maintain a compressed state through the reset action of the spring 137 and the gravity of the opening and closing block 135.

[0058] As a preferred option, such as Figures 10 to 12 As shown, the sorting track also includes a chain assembly 3, which includes two sprockets 31 and multiple sets of chain links 32 arranged end to end. The sprockets 31 are adapted to drive the chain links 32 to rotate. A pin 321 is arranged on the chain link 32 along the left and right direction. The pin 321 is fixedly connected to the fixing rod 1342. The pin 321 is adapted to fix the sorting component 1 and the chain link 32 through the fixing rod 1342. A dust cover 5 is provided on the outer side of the chain assembly 3. The dust cover 5 is fixed on the frame 200. An auxiliary track 51 matching the sliding protrusion 111 is arranged around the inner side of the dust cover 5. The outer end of the sliding protrusion 111 is adapted to slide in the auxiliary track 51 and control the relative position of the sorting component 1 with respect to the frame 200. A relief groove 52 is provided in the middle of the dust cover 5. The relief groove 52 is adapted to accommodate the chain assembly 3.

[0059] The chain assembly 3 facilitates the reuse of the sorting assembly 1, which is fixed relative to the chain links 32. Specifically, the upper chain links 32 of the chain assembly 3 are in the sorting process, while the lower chain links 32 are in the return process, returning to the starting point, facilitating the restart of subsequent sorting processes. The dust cover 5 effectively reduces dust entry into the chain assembly 3 and allows for the addition of lubricating oil to reduce friction. Furthermore, the auxiliary track 51 on the dust cover 5 allows for control of the relative position of the sorting roller 11 relative to the chain assembly 3 by controlling the sliding protrusions 111 within the auxiliary track 51, thereby increasing the stability and durability of the sorting track.

[0060] As a preferred option, such as Figure 11 , Figure 13 and Figure 14As shown, the chain assembly 3 defines a receiving cavity 33 inside. A separation assembly 4 is fixedly disposed within the receiving cavity 33 relative to the frame 200. The separation assembly 4 includes a first sorting box 41 and a second sorting box 42. Both the first sorting box 41 and the second sorting box 42 are inverted conical in shape, and the second sorting box 42 is fitted over the first sorting box 41. The tops of both the first sorting box 41 and the second sorting box 42 extend upwards to form a first insertion portion 411 and a second insertion portion 421, respectively. The second insertion portion 421 is fitted over the first insertion portion 411, and the second insertion portion 421 is offset from the first insertion portion 411 in the front-back direction to form a gap cavity 42. 2. The sorting track also includes a knocking component 6, which is fixed on the frame 200 and located at the rear of the screening component 2. The knocking component 6 is adapted to move vertically and drive the sorting roller 11 to open. The position of the gap cavity 422 and the position of the knocking component 6 are projected onto the horizontal plane. The position of the first insertion part 411 and the position of the screening component 2 are also projected onto the horizontal plane. Qualified workpieces 300 are adapted to enter the second sorting box 42 through the gap cavity 422. The inner wall of the first insertion part 411 defines the first insertion cavity 4111. Unqualified workpieces 300 are adapted to enter the first sorting box 41 through the first insertion cavity 4111.

[0061] like Figure 12 As shown, there are two sets of filtering components 2 and one set of output components 6, as follows: Figure 11 The dashed box shown in the diagram projects onto the horizontal plane, corresponding to the positions of the gap cavity 422, the knockout component 6, the first insertion part 411, and the screening component 2, respectively. This ensures that when the screening component 2 or the knockout component 6 drives the opening and closing block 135 upward, the sorting rollers 11 can move in opposite directions and remain open. This allows the workpiece 300 to enter the first sorting box 41 or the second sorting box 42 from the gap cavity 422 or the first insertion cavity 4111 as needed. Furthermore, the first sorting box 41 and the second sorting box 42 can also be provided with knockout holes 43, facilitating the knocking out of the workpiece 300 from the first sorting box 41 or the second sorting box 42 using a cylinder assembly, thereby achieving the final sorting and output of the workpiece 300.

[0062] Since the first sorting box 41 and the second sorting box 42 are inverted cones, the workpiece 300 knocked into them can move downwards along the inner wall of the first sorting box 41 or the second sorting box 42 and accumulate near the knockout hole 43, thus facilitating subsequent sorting and output of the workpiece 300.

[0063] As a preferred option, such as Figure 12The sorting track also includes a hammering component 7, which is fixedly installed relative to the frame 200 and located at the front of the sorting track. The hammering component 7 is adapted to drive the opening and closing block 135 to move upward in the vertical direction, and control the sorting roller 11 to open and place the workpiece 300 to be inspected.

[0064] In this specific embodiment, the screening component 2, the knock-out component 6, and the knock-in component 7 are all cylinder structures. The knock-in component 7 facilitates the opening of the sorting roller 11 and the placement of the workpiece 300 to be inspected. The screening component 2 is adapted to control the opening of the sorting roller 11 and guide the unqualified workpiece 300 into the first sorting box 41. The knock-out component 6 is adapted to guide the workpiece 300 that has been inspected and is at the end of its operation into the second sorting box 42 by controlling the opening of the sorting roller 11.

[0065] An optical sorting machine, equipped with the sorting track as described above.

[0066] Since the optical sorting machine uses optical components as inspection components 100, it has high inspection efficiency. The high-efficiency sorting track described above can better leverage the advantages of the optical sorting machine, further improve its efficiency and durability, and prevent shaft parts from jamming relative to the sorting track during operation, thereby further enhancing the stability of the optical sorting machine.

[0067] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A sorting track, said sorting track being fixed on a frame, characterized in that: The sorting track includes sorting components and screening components. Multiple sorting components are arranged and movable along the sorting track. Each sorting component includes sorting rollers and a fixed base. Each sorting component has two sets of sorting rollers distributed along the front-to-back direction. The sorting rollers are adapted to be openable and closable on the fixed base along the front-to-back direction. The fixed base is movable along the sorting track. The screening component is fixed to the frame. When the sorting rollers are closed, the sorting rollers on the same set of sorting components are adapted to abut against the outer wall of the shaft-shaped workpiece and clamp the workpiece. When the inspection component detects that the workpiece is unqualified, the screening component is adapted to drive the sorting rollers to open, causing the unqualified workpiece to fall vertically and separate from the sorting rollers. Each sorting assembly is provided with two sets of fixed seats, which are respectively located at the left and right ends of the sorting roller. The fixed seats are provided with sliding grooves along the front-back direction. The left and right ends of the two sets of sorting rollers are provided with sliding protrusions that match the sliding grooves. The sorting rollers are adapted to be slidably connected to the sliding grooves through the sliding protrusions. An opening and closing assembly is connected between the two sets of sorting rollers. The screening assembly is adapted to drive the opening and closing assembly to move, and simultaneously drive the opening and closing assembly to make the sorting rollers move in opposite directions or towards each other along the sliding grooves. Each sorting assembly includes a first sorting roller and a second sorting roller. The opening and closing assembly includes a first connecting rod and a second connecting rod. The first connecting rod and the second connecting rod each have two sets and are respectively arranged on the left and right sides of the first sorting roller and the second sorting roller. The proximal ends of the first connecting rod and the second connecting rod are rotatably hinged. The distal ends of the first connecting rod and the second connecting rod are rotatably hinged to the sliding protrusions on the same side of the first sorting roller and the second sorting roller, respectively. The length of the first connecting rod is the same as the length of the second connecting rod. The screening assembly is adapted to move vertically upward and drive the hinge points of the proximal ends of the first connecting rod and the second connecting rod to move upward, thereby driving the first sorting roller and the second sorting roller to move backward simultaneously and be in the open state. An auxiliary plate is also provided on the outer side of the fixed base. The auxiliary plate is provided with an auxiliary horizontal groove that is exactly the same as the projection of the sliding groove on the vertical plane. The sliding protrusion is adapted to slide synchronously in the auxiliary horizontal groove. The opening and closing assembly also includes a hinge column. The proximal ends of the first connecting rod and the second connecting rod are adapted to be rotatably connected through the hinge column. An auxiliary vertical groove is provided on the auxiliary plate in the vertical direction. The outer end of the hinge column is adapted to be slidably connected in the auxiliary vertical groove in the up and down direction. The opening and closing assembly includes an opening and closing seat, an opening and closing block, and an opening and closing rod. One end of the opening and closing rod is connected to the inner end of the hinge column, and the other end of the opening and closing rod is connected to the top of the opening and closing block. The opening and closing seat has an opening and closing groove that matches the opening and closing block in the vertical direction. The opening and closing block is slidably connected to the opening and closing seat in the vertical direction through the opening and closing groove. A fixing rod is provided on the outer side of the opening and closing seat, and the opening and closing seat is fixed to the inner side of the auxiliary plate by the fixing rod. The screening assembly is adapted to drive the opening and closing block to move in the vertical direction and realize the opening and closing action of the sorting roller. A spring is provided between the hinge column and the fixed rod. When the sorting roller is in the closed state, the spring is in a compressed state due to the gravity of the opening and closing block, and the downward part of the opening and closing block protrudes from the opening and closing seat. When the inspection component detects that the workpiece is unqualified, the screening component is adapted to drive the opening and closing block to move upward and open the sorting roller, so that the unqualified workpiece falls vertically and separates from the sorting roller. At this time, the spring is in an extended state, and then the spring returns to its original length and closes the sorting roller.

2. A sorting track as described in claim 1, characterized in that: The sorting track further includes a chain assembly, which comprises two sprockets and multiple sets of chain links arranged end-to-end. The sprockets are adapted to drive the chain links to rotate. Each chain link has a pin arranged in the left-right direction, and the pin is fixedly connected to the fixing rod. The pin is adapted to fix the sorting component to the chain link through the fixing rod. A dust cover is provided on the outer side of the chain assembly and is fixed to the frame. An auxiliary track matching the sliding protrusion is arranged around the inner side of the dust cover. The outer end of the sliding protrusion is adapted to slide within the auxiliary track and control the relative position of the sorting component with respect to the frame. A clearance groove is provided in the middle of the dust cover, and the clearance groove is adapted to accommodate the chain assembly.

3. A sorting track as described in claim 2, characterized in that: The chain assembly internally defines a receiving cavity. A separation component is fixedly disposed within the receiving cavity relative to the frame. The separation component includes a first sorting box and a second sorting box, both of which are inverted conical in shape. The second sorting box is fitted over the first sorting box. The tops of both the first and second sorting boxes extend upwards to form a first insertion portion and a second insertion portion, respectively. The second insertion portion is fitted over the outside of the first insertion portion, and the second insertion portion and the first insertion portion are offset in the front-rear direction to form a gap cavity. The sorting track... It also includes a knock-out component, which is fixed to the frame and disposed at the rear of the screening component. The knock-out component is adapted to move in a vertical direction and drive the sorting roller to open. The position of the gap cavity and the position of the knock-out component are projected onto the horizontal plane, and the position of the first insertion part and the position of the screening component are also projected onto the horizontal plane. The qualified workpiece is adapted to enter the second sorting box through the gap cavity. The inner wall of the first insertion part defines a first insertion cavity, and the unqualified workpiece is adapted to enter the first sorting box through the first insertion cavity.

4. A sorting track as described in claim 3, characterized in that: The sorting track also includes a knocking component, which is fixedly installed relative to the frame and disposed at the front of the sorting track. The knocking component is adapted to drive the opening and closing block to move upward in the vertical direction, control the sorting roller to open, and place the workpiece to be inspected.

5. An optical sorting machine, characterized in that: It is equipped with a sorting track as described in any one of claims 1 to 4.

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