A sleeve picking machine

Abstract

The application discloses a sleeve selecting machine and relates to the technical field of sleeve selecting, which comprises a vibrating disc, a material inspection channel for discharging the sleeve is arranged on the vibrating disc, a positioning distance measuring device is arranged on the material inspection channel, the positioning distance measuring device comprises an internal support structure and an electromagnet which are sequentially arranged on the material inspection channel in the discharging direction, two laser distance measuring devices are arranged on the internal support structure, the two laser distance measuring devices respectively measure the distance between the two laser distance measuring devices and the outer wall of the sleeve and the supporting rod on the outer side of the sleeve, the inner diameter of the sleeve is indirectly calculated, the measurement of the inner diameter of the sleeve is realized, the inlet positions of two discharging paths are adjusted by a material distribution structure to respectively receive the sleeves with qualified and unqualified inner diameters, the screening of the inner diameter of the sleeve is realized, the influence of the unqualified inner diameter of the sleeve on the subsequent assembly with other parts is avoided, the influence of the vibration of the vibrating disc on the measurement is reduced, and the accuracy of the measurement of the inner diameter of the sleeve is improved.

Description

Technical Field

[0001] This invention relates to the field of sleeve sorting technology, and in particular to a sleeve sorting machine. Background Technology

[0002] A chain is a metal link or ring used for mechanical transmission and traction. The structure of a chain generally includes rollers, bushings, chain plates, and pins. Bushings are one of the structural parts that make up a chain, and they need to be selected after the bushings are manufactured.

[0003] Sleeve selection is generally carried out manually or by auxiliary equipment such as vibratory feeders. Compared with manual selection, equipment such as vibratory feeders has the advantage of high selection efficiency. For example, the utility model patent with patent publication number CN205270717U proposes a sleeve length selection device on a chain. This utility model patent selects sleeves in a fixed plate by using a selection rod, and after removing the selection component, sleeves that meet the length requirements are collected in one place, which improves the selection efficiency.

[0004] However, when screening sleeves, this utility model only improves the efficiency of manually screening sleeves with qualified lengths, but it cannot screen the inner diameter of the sleeves during the screening process. This results in some sleeves after screening having inner diameters that do not meet production requirements, which affects the subsequent assembly of sleeves with other parts, thus affecting the production quality and yield of the chain. Summary of the Invention

[0005] The purpose of this invention is to provide a sleeve sorting machine to solve the technical problem in the prior art that the sleeve inner diameter cannot be sorted during the sleeve sorting process, resulting in sleeves with unqualified inner diameters after sorting, which affects subsequent assembly.

[0006] This invention provides a sleeve sorting machine, including a vibratory plate, wherein the vibratory plate is provided with a material inspection channel for sleeve discharge, and the material inspection channel is provided with a positioning and distance measuring device.

[0007] The alignment and ranging device includes an internal support structure and an electromagnet arranged sequentially along the discharge direction on the inspection channel. Two laser ranging devices are arranged on the internal support structure. The laser ranging device with the lower height is equipped with a magnetic attraction device for adsorbing the sleeve. A discharge channel communicating with the inspection channel is arranged vertically below the inspection channel. A material distribution structure is arranged on the discharge channel. A rotating pressing structure is also arranged on the inspection channel, which elastically contacts the surface of the sleeve when rotating and pushes the sleeve to the internal support structure.

[0008] The internal support structure slides into the sleeve on the material inspection channel to support or remove itself from the sleeve by the magnetic force of the electromagnet. The lasers of the two laser ranging devices irradiate each other in the vertical direction and intersect the center line of the sleeve supported by the internal support structure. The magnetic attraction direction of the magnetic attraction device is downward along the laser irradiation direction of the laser ranging device. The material distribution structure is used to divide the discharge channel into two paths and move along the direction perpendicular to the discharge direction to adjust the entrance position of the two discharge paths.

[0009] Furthermore, the internal support structure includes a magnetic slider that is slidably connected to the material inspection channel and moves along the sleeve discharge direction. A support rod for inserting into the sleeve for support is vertically arranged on the side of the magnetic slider away from the electromagnet. A fixed baffle parallel to the magnetic slider is also provided on the material inspection channel. A through groove for the support rod and the laser rangefinder to pass through is provided on the fixed baffle.

[0010] The axis of the support rod is parallel to the discharge direction of the sleeve, and the magnetic slider is located between the fixed baffle and the electromagnet. The laser ranging device is set on the side of the magnetic slider away from the electromagnet.

[0011] Furthermore, the highest point of the support rod is provided with an arc-shaped support plate that fits against the inner wall of the sleeve, and the height of the lowest point on the arc-shaped support plate is greater than the height of the axis of the support rod.

[0012] Furthermore, the surface of the arc-shaped support plate is provided with a plurality of balls, and the plurality of balls rotate along an axis perpendicular to the support rod and together form an arc surface that fits against the inner wall of the sleeve and is used to contact the inner wall of the sleeve.

[0013] Furthermore, the material distribution structure includes a linear motion component disposed on the discharge channel and located below the inspection channel. The linear motion component is provided with a partition that is slidably connected to the surface of the discharge channel. Both sides of the partition are provided with inner arc surfaces tangent to the surface of the discharge channel, and the linear motion component moves in a direction perpendicular to the axis of the support rod.

[0014] Furthermore, multiple elastic pads are provided on the inner arc surface along the vertical direction, and the sleeve contacts the multiple elastic pads in sequence after it is detached from the support rod.

[0015] Furthermore, the rotating pressing structure includes a connecting roller rotatably connected to one side of the inspection channel, and one end of the connecting roller is connected to a driving device. Multiple elastic pressure plates are evenly arranged around the rotation center of the connecting roller. Each elastic pressure plate has an elastic rubber layer on the surface that contacts the sleeve. The rotation center of the connecting roller is parallel to the horizontal plane and perpendicular to the axis of the support rod.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] (1) Two laser rangefinders measure the distance between themselves and the outer wall of the sleeve and the support rod on the outside of the sleeve, respectively, and indirectly calculate the inner diameter of the sleeve, thus realizing the measurement of the inner diameter of the sleeve.

[0018] (2) By adjusting the inlet position of the two discharge paths through the material distribution structure, sleeves with qualified and unqualified inner diameters are received respectively, thereby achieving the screening of the inner diameter of the sleeves and avoiding the impact of unqualified inner diameter of the sleeves on subsequent assembly with other parts.

[0019] (3) The rotating pressing structure presses down and pushes the sleeve to move, and the sleeve is attracted downward by the magnetic suction device, so that the sleeve can be quickly stabilized before measurement, reducing the impact of the vibration of the vibrating plate on the measurement and improving the accuracy of the sleeve inner diameter measurement. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a sleeve sorting machine;

[0022] Figure 2 This is a top view schematic diagram of a sleeve sorting machine;

[0023] Figure 3 This is an enlarged schematic diagram of the alignment and ranging device.

[0024] Figure 4 This is a side sectional view of a sleeve sorting machine.

[0025] Figure 5 This is a side cross-sectional view of a sleeve sorting machine at different depths.

[0026] Reference numerals: 1. Vibratory feeder; 2. Material inspection channel; 3. Alignment and ranging device; 301. Internal support structure; 302. Electromagnet; 303. Laser ranging device; 304. Magnetic suction device; 305. Discharge channel; 306. Material distribution structure; 307. Rotating pressing structure; 308. Magnetic slider; 309. Support rod; 310. Fixed baffle; 311. Through groove; 312. Arc-shaped support plate; 313. Ball bearing; 314. Linear motion component; 315. Partition plate; 316. Inner arc surface; 317. Elastic gasket; 318. Connecting roller; 319. Elastic pressure plate; 320. Elastic rubber layer. Detailed Implementation

[0027] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0029] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] The following is combined with Figures 1 to 5As shown, an embodiment of the present invention provides a sleeve sorting machine, including a vibratory plate 1, a material inspection channel 2 for sleeve discharge on the vibratory plate 1, and a positioning and distance measuring device 3 on the material inspection channel 2.

[0033] The alignment and ranging device 3 includes an internal support structure 301 and an electromagnet 302 arranged sequentially along the discharge direction on the inspection channel 2. Two laser ranging devices 303 are arranged on the internal support structure 301. The lower laser ranging device 303 is equipped with a magnetic suction device 304 for adsorbing the sleeve. A discharge channel 305 connected to the inspection channel 2 is arranged below the inspection channel 2 in the vertical direction. A material distribution structure 306 is arranged on the discharge channel 305. The inspection channel 2 is also equipped with a rotating pressing structure 307 that makes elastic contact with the surface of the sleeve when rotating and pushes the sleeve to the internal support structure 301.

[0034] The internal support structure 301 slides into the sleeve on the material inspection channel 2 through the magnetic force of the electromagnet 302 to support or remove the sleeve. The lasers of the two laser ranging devices 303 irradiate each other in the vertical direction and intersect the center line of the sleeve supported by the internal support structure 301. The magnetic attraction direction of the magnetic attraction device 304 is downward along the laser irradiation direction of the laser ranging device 303. The material distribution structure 306 is used to divide the discharge channel 305 into two paths and move along the direction perpendicular to the discharge direction to adjust the entrance position of the two discharge paths.

[0035] In practical use, the vibratory plate 1 is the same as the vibratory plate used for screening sleeves. It can screen the shape of the sleeve and move to the alignment and distance measuring device 3 through the material inspection channel 2 to screen the inner diameter of the sleeve.

[0036] When the inner diameter of the sleeve is screened by the alignment and ranging device 3, the sleeve moves along the inspection channel 2 to the rotating pressing structure 307 under the vibration of the vibrating plate 1. The rotating pressing structure 307 is in a rotating state and undergoes elastic deformation after contacting the surface of the sleeve. The friction generated when the rotating pressing structure 307 contacts the surface of the sleeve pushes the sleeve towards the internal support structure 301 and has a pressing effect on the sleeve to ensure the stability of the sleeve before it is fitted into the internal support structure 301.

[0037] The internal support structure 301 is fully inserted into the sleeve for support by the vibration of the vibrating plate 1 and the pushing of the rotating pressing structure 307. The sleeve is located directly above the connection between the discharge channel 305 and the inspection channel 2. That is, when the sleeve is fully supported by the internal support structure 301, it is suspended on the internal support structure 301 under the action of gravity.

[0038] To further stabilize the sleeve, since the sleeve can generally be attracted to the magnet by magnetic force, the sleeve is attracted by the magnetic attraction device 304, so that the sleeve is quickly stabilized under the vertical downward magnetic force of the magnetic attraction device 304.

[0039] The two laser ranging devices 303 are positioned with opposite laser irradiation directions and both intersect the center line of the sleeve portion supported by the internal support structure 301. That is, the two laser ranging devices 303 are located on both sides of the sleeve portion supported by the internal support structure 301 in the vertical direction.

[0040] When the two laser rangefinders 303 illuminate each other and the sleeve is located on the internal support structure 301, the laser rangefinder 303 measures the distance between itself and the outer wall of the sleeve. The distance between the laser rangefinder 303 and the part of the internal support structure 301 that supports the sleeve can also be measured and is fixed. The vertical dimension of the part of the internal support structure 301 that supports the sleeve is also fixed. Since the sleeve is supported on the internal support structure 301, after the laser rangefinder 303 measures the distance between itself and the outer wall of the sleeve, the thickness of the sleeve and the distance between the outer wall of the sleeve and the internal support structure 301 can be obtained. Finally, the size of the inner diameter of the sleeve can be determined.

[0041] After the inner diameter of the sleeve is measured, the electromagnet 302 is energized in the reverse direction to attract the internal support structure 301 to move in the reverse direction. As the sleeve moves in the reverse direction, it is obstructed from detaching from the internal support structure 301 and falls through the connection between the discharge channel 305 and the inspection channel 2, and falls onto the discharge channel 305.

[0042] The material distribution structure 306 divides the discharge channel 305 into two paths to receive qualified and unqualified sleeves respectively. The material distribution structure 306 moves in a direction perpendicular to the sleeve discharge according to the sleeve inner diameter measuring structure, so that the position of the entrance of the two paths is adjusted to receive the corresponding sleeve, such as qualified sleeve or unqualified sleeve, and then the material is continued to be discharged by the vibration of the vibrating plate 1.

[0043] In other words, the inner diameter of the sleeve is measured during the sleeve discharge process by the alignment and ranging device 3. This allows for the screening of the inner diameter of the sleeve during the discharge process, avoiding the impact of unqualified inner diameter on subsequent chain assembly and chain quality.

[0044] Furthermore, by rotating the pressing structure 307 and using the magnetic suction device 304 to restrict the movement of the sleeve on the internal support structure 301, the stability of the sleeve on the internal support structure 301 is ensured, and the accuracy of the measurement data of the laser rangefinder 303 is improved.

[0045] Furthermore, in this invention, the vibration of the vibratory plate 1 is used to drive the sleeve to move obliquely forward. That is, when the sleeve is subjected to the action of the vibratory plate 1, it has two component movements: one component movement is vertically upward and the other component movement is horizontally forward. Therefore, when the sleeve is located on the internal support structure 301, it will only have an upward or forward movement tendency, but it will not have a movement tendency in the discharge direction perpendicular to the material inspection channel 2. That is, when the sleeve is located on the internal support structure 301, it will not have a movement tendency to sway around the supporting part of the internal support structure 301. Moreover, due to the magnetic force of the magnetic attraction device 304, the sleeve can quickly stabilize. Therefore, the sleeve is in a relatively stable state when it is on the internal support structure 301, and the accuracy of the data measured by the laser rangefinder 303 is high.

[0046] In this embodiment, the laser ranging device 303 is a laser ranging sensor that measures distance using laser in reality. It is acceptable to select one that is small in size and meets the measurement accuracy requirements.

[0047] The magnetic suction device 304 is disposed on the part where the laser rangefinder 303 is connected to the internal support structure 301. Furthermore, the laser rangefinder 303 is connected to the internal support structure 301 through a plate, while the magnetic suction device 304 is disposed on the plate.

[0048] Furthermore, the magnetic attraction device 304 is installed on the laser rangefinder 303, which can move synchronously with the internal support structure 301 to reduce the effect on the sleeve and avoid attracting the sleeve and affecting its descent.

[0049] Furthermore, in this embodiment, since the radius of the sleeve is small, the distance between the part of the internal support structure 301 supporting the sleeve and the surface of the inspection channel 2 is also small. Therefore, a groove communicating with the bottom can be provided on the inspection channel 2, and the groove is connected to the connection point of the discharge channel 305 on the inspection channel 2. The laser rangefinder 303 is connected and installed on the internal support structure 301 through connectors such as strips. The strip can be connected and installed to the laser rangefinder 303 by going through the groove to the bottom of the inspection channel 2 or to the inside of the groove.

[0050] Specifically, the internal support structure 301 includes a magnetic slider 308 that is slidably connected to the inspection channel 2 and moves along the sleeve discharge direction. A support rod 309 for inserting into the sleeve for support is vertically arranged on the side of the magnetic slider 308 away from the electromagnet 302. A fixed baffle 310 parallel to the magnetic slider 308 is also provided on the inspection channel 2. A through groove 311 for the support rod 309 and the laser rangefinder 303 to pass through is provided on the fixed baffle 310.

[0051] The axis of the support rod 309 is parallel to the discharge direction of the sleeve, and the magnetic slider 308 is located between the fixed baffle 310 and the electromagnet 302. The laser rangefinder 303 is set on the side of the magnetic slider 308 away from the electromagnet 302.

[0052] During the operation of the internal support structure 301, the magnetic slider 308 and the electromagnet 302 attract or repel each other, thereby driving the magnetic slider 308 to move along the discharge direction on the material inspection channel 2 to approach or move away from the electromagnet 302.

[0053] Driven by electromagnet 302, the sleeve moves away from electromagnet 302 until the support rod 309 is directly above the connection between the discharge channel 305 and the inspection channel 2, so that the sleeve detached from the support rod 309 can fall directly onto the discharge channel 305. The laser rangefinder 303 and the support rod 309 pass through the through slot 311 to the other side of the fixed baffle 310.

[0054] When the magnetic slider 308 abuts against the fixed baffle 310, the position of the support rod 309 is fixed. At this time, the sleeve is completely fitted onto the support rod 309 under the push of the rotating pressing structure 307 and the vibration conveying of the vibrating plate 1. The sleeve falls downward under its own weight and the magnetic attraction of the magnetic attraction device 304 until its inner wall abuts against the surface of the support rod 309. That is, the sleeve is in a state supported by the support rod 309, and under the magnetic force of the magnetic attraction device 304, it is subjected to a downward force and quickly stabilizes, ensuring the accuracy of the data measured by the laser rangefinder 303.

[0055] When the energizing direction of the electromagnet 302 changes, the magnetic slider 308 is pulled away from the fixed baffle 310 by the magnetic force of the electromagnet 302. The laser rangefinder 303 and the support rod 309 pass through the through groove 311 to the other side of the fixed baffle 310. Since the size of the sleeve is larger than the size of the through groove 311, the sleeve is blocked by the fixed baffle 310 and detaches from the support rod 309 and falls into the corresponding path on the discharge channel 305.

[0056] The height of the support rod 309 is less than the height of the sleeve at the highest point of the inner wall of the inspection channel 2, so as to ensure that the sleeve can be fitted onto the support rod 309.

[0057] Specifically, the highest point of the support rod 309 is provided with an arc-shaped support plate 312 that fits against the inner wall of the sleeve, and the height of the lowest point of the arc-shaped support plate 312 is greater than the height of the axis of the support rod 309.

[0058] Because the support rod 309 is smaller than the sleeve in order to ensure that it can fully enter the sleeve, the support rod 309 only has a supporting function. The contact area between the support rod 309 and the inner wall of the sleeve is small. Therefore, the sleeve has certain defects in stability when supported by the support rod 309.

[0059] By setting an arc-shaped support plate 312 on the support rod 309 to jointly support the sleeve with the support rod 309, and the arc surface of the arc-shaped support plate 312 can fit with the inner wall of the sleeve, the support area of ​​the sleeve when it is supported is increased, thus improving stability. Moreover, the fit between the arc-shaped support plate 312 and the inner wall of the sleeve has a certain limitation on the tendency of the sleeve to rotate around the support rod 309, further improving the stability of the sleeve on the support rod 309, thereby improving the data accuracy of the laser rangefinder 303 during measurement.

[0060] Specifically, the surface of the arc-shaped support plate 312 is provided with a plurality of balls 313, and the plurality of balls 313 rotate along the axis perpendicular to the support rod 309 and together form an arc surface that fits against the inner wall of the sleeve and is used to contact the inner wall of the sleeve.

[0061] Considering that sliding friction will occur between the sleeve and the surface of the support rod 309 when the sleeve is disengaged from the support rod 309, which will cause wear on the inner wall of the sleeve, multiple balls 313 set on the surface of the arc-shaped support plate 312 are used to form an arc-shaped lifting surface, which not only ensures stable lifting of the sleeve, but also reduces the friction experienced by the sleeve when it is disengaged from the support rod 309.

[0062] Furthermore, the ball bearing 313 rotates along the axis perpendicular to the support rod 309. That is, the friction between the ball bearing 313 and the inner wall of the sleeve restricts the movement of the sleeve around the axis of the support rod 309, thus preventing the sleeve from rotating and affecting the accuracy of the measurement results of the laser rangefinder 303.

[0063] Specifically, the material distribution structure 306 includes a linear motion component 314 disposed on the discharge channel 305 and located below the inspection channel 2. The linear motion component 314 is provided with a partition 315 that is slidably connected to the surface of the discharge channel 305. Both sides of the partition 315 are provided with an inner arc surface 316 that is tangent to the surface of the discharge channel 305. The linear motion component 314 moves in a direction perpendicular to the axis of the support rod 309.

[0064] When in use, the material distribution structure 306 divides the discharge channel 305 into two paths through the partition 315 to receive qualified and unqualified sleeves respectively.

[0065] The linear motion component 314 drives the partition 315 to move in a direction perpendicular to the discharge direction, thereby changing the position of the partition 315 and thus changing the inlet position of the two paths formed by the partition 315 to receive qualified and unqualified sleeves respectively.

[0066] Inner arc surfaces 316 are provided on both sides of the partition 315 to receive the falling sleeve more smoothly, so that the sleeve has a buffering effect when passing through the inner arc surfaces 316, reducing the damage to the sleeve caused by collision when falling onto the discharge channel 305.

[0067] In this embodiment, the linear motion component 314 is a structure capable of reciprocating linear motion, such as a motor driving a screw to drive the partition 315 to reciprocate.

[0068] Specifically, multiple elastic pads 317 are provided on the inner arc surface 316 along the vertical direction, and the sleeve contacts the multiple elastic pads 317 in sequence after it is disengaged from the support rod 309.

[0069] The elastic pad 317 is designed to make contact with the sleeve when the sleeve falls, so that the sleeve compresses the elastic pad 317 after contacting the elastic pad 317 to produce elastic deformation to buffer the sleeve, and further reduce the damage to the sleeve caused by the collision when the sleeve falls onto the discharge channel 305.

[0070] The elastic gasket 317 quickly recovers its deformation after losing contact with the sleeve after elastic deformation, and continues to buffer the next sleeve.

[0071] Specifically, the rotating pressing structure 307 includes a connecting roller 318 rotatably connected to one side of the inspection channel 2, and one end of the connecting roller 318 is connected to a driving device. Multiple elastic pressure plates 319 are evenly arranged around the rotation center of the connecting roller 318. Each elastic pressure plate 319 has an elastic rubber layer 320 on the surface that contacts the sleeve. The rotation center of the connecting roller 318 is parallel to the horizontal plane and perpendicular to the axis of the support rod 309.

[0072] During use, the rotating pressing structure 307 drives the connecting roller 318 through the driving device to rotate multiple elastic pressure plates 319 around the axis of the connecting roller 318, so that the multiple elastic pressure plates 319 rotate in a cycle. During the rotation, the elastic rubber layer 320 on the surface of the elastic pressure plate 319 comes into contact with the sleeves that pass through the inspection channel 2 in sequence.

[0073] When in contact, the elastic pressure plate 319 deforms due to the contact pressure between itself and the sleeve surface, which restricts the height change of the sleeve when it is fitted onto the support rod 309. During the rotation of the connecting roller 318, the elastic rubber layer 320 on the elastic pressure plate 319 and the sleeve surface are used to push the sleeve toward the support rod 309 until the sleeve is fitted onto the support rod 309.

[0074] In this embodiment, the distance between the elastic pressure plate 319 and the surface of the support sleeve of the inspection channel 2 is smaller than the outer diameter of the sleeve, so as to ensure that the elastic pressure plate 319 can undergo elastic deformation when it comes into contact with the outer wall of the sleeve to generate sufficient friction to drive the sleeve to move, and to avoid the sleeve moving up and down and affecting the relative position between it and the support rod 309, which would prevent it from being fitted onto the support rod 309.

[0075] The elastic rubber layer 320 has a certain degree of elasticity, which reduces the damage to the sleeve surface caused by the deformation of the elastic pressure plate 319 after contacting the sleeve. The elastic rubber layer 320 can deform to increase the contact area with the sleeve surface, thereby improving the effectiveness and stability of pushing the sleeve to move. It can also increase the coefficient of friction, so that the elastic rubber layer 320 has greater friction after contacting the sleeve surface.

[0076] Furthermore, the elastic rubber layer 320 can also be made of other materials, as long as it has the above-mentioned effects.

[0077] Working principle:

[0078] 1) Electromagnet 302 drives magnetic slider 308 to move to abut against fixed baffle 310, and support rod 309 is located at the connection between discharge channel 305 and inspection channel 2;

[0079] 2) The sleeve is mounted on the support rod 309 under the push of the vibrating plate 1 and the elastic pressure plate 319, and is stabilized on the support rod 309 by the magnetic attraction of the magnetic attraction device 304.

[0080] 3) Two laser ranging devices 303 simultaneously measure the distance between themselves and the highest and lowest points of the sleeve's outer wall, and transmit the obtained data to the corresponding data calculation module to obtain the corresponding data. The module then determines whether the obtained data meets the sleeve's production requirements. The calculation method for the sleeve's inner diameter is as follows:

[0081] The distances between the laser rangefinder 303 and the surface of the support rod 309 are A1 and A2, respectively, and the distances between the laser rangefinder 303 and the outer wall of the sleeve are B1 and B2. Then the thickness of the sleeve C = A1 (A1 is the data measured by the laser rangefinder 303 above the support rod 309) - B1 (B1 is the data measured by the laser rangefinder 303 above the support rod 309). Therefore, the inner diameter of the sleeve D = A2 - B2 - C + H (H is the diameter of the support rod 309).

[0082] 4) At the same time as 3) occurs, the electromagnet 302 is energized in the reverse direction, pulling the magnetic slider 308 away from the fixed baffle 310, so that the sleeve is pushed by the fixed baffle 310 to detach from the support rod 309 and fall onto the discharge channel 305.

[0083] 5) As the sleeve falls, the material distribution structure 306 performs a corresponding action based on the judgment result. The partition 315 moves to the corresponding position under the drive of the linear motion component 314 to receive the sleeve, which includes two parts:

[0084] (1) If the inner diameter D of the sleeve calculated by the laser rangefinder 303 is within the range of the inner diameter D (preset) of the sleeve in the production requirements and its error, the inner diameter D of the sleeve calculated after measurement is within the error range. At this time, the linear motion component 314 drives the partition 315 to move, so that the path formed by the partition 315 and the discharge channel 305 contacts the qualified sleeve, and keeps the position of the partition 315 unchanged to facilitate the reception of subsequent qualified sleeves.

[0085] (2) When the calculated inner diameter value D of the sleeve is not within the error range of the inner diameter value of the sleeve, the linear motion component 314 drives the partition 315 to move to the other side, so that the path formed by the other side of the partition 315 and the discharge channel 305 receives the unqualified sleeve, and keeps the position of the partition 315 unchanged to receive subsequent unqualified sleeves.

[0086] In 5), the partition 315 remains in the same position after receiving a sleeve once, so that it can continuously receive the same qualified or unqualified sleeves, so as to avoid repeated resets affecting the service life and the efficiency of the operation during the premiere process.

[0087] Repeat the above steps to continuously screen the inner diameter of the sleeves that have been screened by shape on the vibratory plate 1.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sleeve sorting machine, comprising a vibratory plate (1), characterized in that: The vibratory plate (1) is provided with a material inspection channel (2) for the sleeve to discharge material, and the material inspection channel (2) is provided with a positioning and distance measuring device (3). The alignment and ranging device (3) includes an internal support structure (301) and an electromagnet (302) arranged sequentially on the material inspection channel (2) along the discharge direction. Two laser ranging devices (303) are arranged on the internal support structure (301). The laser ranging device (303) with the lower height is provided with a magnetic suction device (304) for adsorbing the sleeve. A discharge channel (305) connected to the material inspection channel (2) is arranged below the material inspection channel (2) in the vertical direction. A material distribution structure (306) is provided on the discharge channel (305). A rotating pressing structure (307) is also provided on the material inspection channel (2) to push the sleeve to the internal support structure (301) when it rotates and elastically contacts the surface of the sleeve. The internal support structure (301) slides into the sleeve on the material inspection channel (2) to support or remove the sleeve by the magnetic force of the electromagnet (302), and the lasers of the two laser ranging devices (303) irradiate each other in the vertical direction and intersect the center line of the sleeve supported by the internal support structure (301). The magnetic attraction direction of the magnetic attraction device (304) is downward along the laser irradiation direction of the laser ranging device (303). The material distribution structure (306) is used to divide the discharge channel (305) into two paths and move along the direction perpendicular to the discharge direction to adjust the entrance position of the two discharge paths. The internal support structure (301) includes a magnetic slider (308) that is slidably connected to the material inspection channel (2) and moves along the discharge direction of the sleeve. A support rod (309) for inserting into the sleeve for support is vertically arranged on the side of the magnetic slider (308) away from the electromagnet (302). A fixed baffle (310) parallel to the magnetic slider (308) is also provided on the material inspection channel (2). A through groove (311) is provided on the fixed baffle (310) for the support rod (309) and the laser rangefinder (303) to pass through. The axis of the support rod (309) is parallel to the discharge direction of the sleeve, and the magnetic slider (308) is located between the fixed baffle (310) and the electromagnet (302). The laser rangefinder (303) is located on the side of the magnetic slider (308) away from the electromagnet (302).

2. The sleeve sorting machine according to claim 1, characterized in that: The support rod (309) is provided with an arc-shaped support plate (312) that fits against the inner wall of the sleeve at its highest point, and the height of the lowest point on the arc-shaped support plate (312) is greater than the height of the axis of the support rod (309).

3. A sleeve sorting machine according to claim 2, characterized in that: The surface of the arc-shaped support plate (312) is provided with a plurality of balls (313), and the plurality of balls (313) rotate along the axis perpendicular to the support rod (309) and together form an arc surface that fits against the inner wall of the sleeve and is used to contact the inner wall of the sleeve.

4. A sleeve sorting machine according to claim 1, characterized in that: The material distribution structure (306) includes a linear motion component (314) disposed on the discharge channel (305) below the inspection channel (2). The linear motion component (314) is provided with a partition (315) that is slidably connected to the surface of the discharge channel (305). Both sides of the partition (315) are provided with an inner arc surface (316) that is tangent to the surface of the discharge channel (305). The linear motion component (314) moves in a direction perpendicular to the axis of the support rod (309).

5. A sleeve sorting machine according to claim 4, characterized in that: Multiple elastic pads (317) are provided on the inner arc surface (316) along the vertical direction, and the sleeve contacts the multiple elastic pads (317) in sequence after it is separated from the support rod (309).

6. A sleeve sorting machine according to claim 1, characterized in that: The rotating pressing structure (307) includes a connecting roller (318) rotatably connected to one side of the inspection channel (2), and one end of the connecting roller (318) is connected to a driving device. Multiple elastic pressure plates (319) are evenly arranged around the rotation center on the periphery of the connecting roller (318). Each elastic pressure plate (319) has an elastic rubber layer (320) on the surface that contacts the sleeve. The rotation center of the connecting roller (318) is parallel to the horizontal plane and perpendicular to the axis of the support rod (309).

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