Cantilever conveyor

Abstract

The present invention relates to a cantilever conveying device, comprising a frame, a cam lifting mechanism and a cantilever conveying mechanism, the cam lifting mechanism comprising a first driving unit and a cam installed on the frame, the first driving unit having a first horizontal output shaft, and the cam is connected to the first horizontal output shaft in a transmission manner; the cantilever conveying mechanism comprises a bracket and a second driving unit installed on the bracket, a transmission unit, and two cantilever units, the bracket is connected to the cam in a cooperative manner and is slidably installed on the frame; the cantilever unit comprises a cantilever beam, one end of the cantilever beam is installed at the end of the bracket away from the frame, and the other end extends out of the bracket, and the two cantilever beams are arranged opposite to each other at intervals; the transmission unit comprises a first transmission shaft, a pulley and a belt, the first transmission shaft is rotatably installed on the bracket, the pulley is installed at both ends of the first transmission shaft, and the belt is movably wound around the pulley and the cantilever beam; the second driving unit has a second horizontal output shaft, and is connected to the first transmission shaft in a transmission manner.

Description

Technical Field

[0001] The invention relates to the technical field of industrial assembly lines, in particular to a cantilever conveying device. Background Art

[0002] With the development of industrial assembly line technology, most modern industrial production adopts assembly line operations. Multiple assembly lines realize material transportation and cooperate with robots to realize the transfer of materials between different assembly lines.

[0003] At present, each assembly line includes a driving motor, a support table, a pulley and a belt. The pulleys are arranged at the four corners of the support table and are connected to the driving motor. The belt is set on the pulley and moves under the drive of the drive standby to transport materials. Manipulators are set between different assembly lines. The manipulators realize reciprocating operations such as material clamping and lifting, horizontal movement, and falling and releasing. However, the above-mentioned assembly line has a complex structure and low space utilization. The above-mentioned manipulator has a high cost, complex structure, large size, poor inertia of each operation, and low speed, resulting in low work efficiency. Summary of the invention

[0004] Based on this, it is necessary to provide a cantilever conveying device to address the problems of complex structure, low space utilization and work efficiency.

[0005] A cantilever conveying device comprises a frame, a cam lifting mechanism and a cantilever conveying mechanism, wherein:

[0006] The cam lifting mechanism comprises a first driving unit and a cam mounted on the frame, the first driving unit having a first horizontal output shaft, and the cam is drivingly connected to the first horizontal output shaft;

[0007] The cantilever conveying mechanism includes a bracket and a second driving unit installed on the bracket, a transmission unit, and two cantilever units. The bracket is connected with the cam and can be slidably installed on the frame; the cantilever unit includes a cantilever beam, one end of the cantilever beam is installed on the end of the bracket away from the frame, and the other end extends out of the bracket in a direction away from the cam lifting mechanism, and the two cantilever beams are arranged opposite to each other at intervals; the transmission unit includes a first transmission shaft, a pulley and a belt, the first transmission shaft is rotatably installed on the bracket, the pulley is installed at both ends of the first transmission shaft, and the belt is movably wound around the pulley and the cantilever beam; the second driving unit has a second horizontal output shaft, and is connected to the first transmission shaft in transmission connection.

[0008] In one embodiment, the cam has a rotation axis and a cam surface, the rotation axis is parallel to the first horizontal output shaft, the cam surface surrounds the rotation axis, the cam surface includes a first surface and a second surface, and along a direction perpendicular to the rotation axis, the first surface gradually increases in diameter from one end close to the second surface to the other end close to the second surface.

[0009] In one embodiment, the cantilever conveying device further comprises a sensing mechanism, wherein the sensing mechanism comprises a switch assembly and a locking plate, wherein:

[0010] The switch assembly is mounted on the frame and is located at one end of the cantilever beam close to the cam, and is used to open when the product to be transported begins to enter or begins to leave the belt, and to close when the product to be transported completely enters or completely leaves the belt;

[0011] The locking plate is installed on the cam, and its extension direction intersects with the end of the first surface close to the second surface. When the switch assembly is opened, the locking plate is locked with the switch assembly, and when the switch assembly is closed, the locking plate is unlocked from the switch assembly.

[0012] In one embodiment, the switch assembly includes a reflective photoelectric switch, a reflective plate and a support plate. The reflective photoelectric switch is installed on the frame through the support plate and is locked or unlocked with the locking plate. The reflective plate is installed on the end of the bracket away from the frame and is located between the two cantilever beams.

[0013] In one embodiment, the cam surface further includes a third surface and a fourth surface, wherein the third surface and the fourth surface are respectively located between the first surface and the second surface and smoothly transition with the first surface and the second surface respectively, wherein:

[0014] Along the direction perpendicular to the rotation axis, the first surface gradually increases in diameter from an end connected to the fourth surface to an end connected to the third surface;

[0015] Along the direction perpendicular to the rotation axis, the radial directions of the third surface and the fourth surface are the same everywhere;

[0016] Along a direction perpendicular to the rotation axis, the second surface gradually decreases in diameter from an end connected to the third surface to an end connected to the fourth surface.

[0017] In one of the embodiments, two sliders are relatively fixedly arranged on the frame, a slide rail is provided on the bracket, the slide rail is slidably mounted on the slider, a roller is installed on the bracket via a connecting rod, and the roller is cooperatively connected with the cam.

[0018] In one of the embodiments, one end of the bracket close to the frame is connected to the frame via a tension spring; and / or one end of the bracket close to the frame is provided with a limit baffle, and along the sliding direction parallel to the slide rail, the projection of the limit baffle on the slider covers the slider.

[0019] In one embodiment, the transmission unit also includes a second transmission shaft and a transition wheel, the second transmission shaft is installed on the bracket and is located between the cantilever beam and the first transmission shaft, the transition wheel is installed at both ends of the second transmission shaft, and the belt is movably wound between the pulley and the transition wheel.

[0020] In one embodiment, the cantilever beam includes a cantilever body, two belt idlers and two bearing fixings, one of the belt idlers is sleeved on one of the bearing fixings, and the two bearing fixings are respectively installed at two ends of the cantilever body.

[0021] In one of the embodiments, a synchronous pulley is disposed on the first transmission shaft, and the second drive unit is connected to the first transmission shaft via a synchronous belt wound around the synchronous pulley and the second horizontal output shaft.

[0022] The above-mentioned cantilever conveying device is used to transfer the products to be transmitted on the high-position front-section assembly line to the low-position rear-section assembly line. During the working process, when the cantilever conveying device is in a low position, the first driving unit is actuated, and the cam is driven to rotate through the first horizontal output shaft, and the cam drives the bracket connected thereto to move, and the bracket slides upward relative to the frame, and the bracket drives the second driving unit, the transmission unit, and the two cantilever units installed thereon to slide upward together to achieve rapid ascent; when it rises to be flush with the front-section assembly line, the products to be transmitted on the front-section assembly line are transmitted to the belt, at this time, the second driving unit is actuated, and the first transmission shaft is driven to rotate through the second horizontal output shaft, and the first transmission shaft drives the pulleys installed at both ends thereof to rotate, and the pulley drives the belt movably wound thereon to move relative to the cantilever beam, so that the products to be transmitted are transmitted to the belt; when the products to be transmitted are completely transmitted to the belt , the first driving unit is actuated, and the cam is driven to rotate through the first horizontal output shaft, and the cam drives the bracket connected thereto to move, and the bracket slides downward relative to the frame, and the bracket drives the second driving unit, the transmission unit, and the two cantilever units installed thereon to slide downward together, and the product to be transmitted moves downward accordingly to achieve rapid descent; when the cantilever conveying device descends to a low position and is flush with the rear assembly line, the rotation of the belt drives the product to be transmitted to the rear assembly line to complete a transmission process, and the transmission process is cycled during the working process to achieve the transmission of multiple products to be transmitted; in the above-mentioned cantilever conveying device, rapid lifting and lowering is achieved through the cam, the structure is simple, the speed is fast, the working efficiency is high, and the two cantilever beams are arranged relative to each other at intervals, so that there is operating space in the middle, upper part and bottom part of the two cantilever beams, and other structures can be arranged to facilitate other operations, making the overall structure compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a cantilever conveying device in one embodiment of the present invention;

[0024] Figure 2 A schematic structural diagram of a cantilever conveying device from another angle in an embodiment of the present invention;

[0025] Figure 3 A schematic structural diagram of a cantilever conveying device from another angle in an embodiment of the present invention;

[0026] Figure 4 An exploded schematic diagram of a cantilever conveying device in one embodiment provided by the present invention. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0033] like Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, the present invention provides a cantilever conveying device 10, which is used to convey the products to be conveyed on the high front section assembly line to the low rear section assembly line, or to convey the products to be conveyed on the low front section assembly line to the high rear section assembly line. The working principle is similar. For the convenience of description, the following is an example of conveying the products to be conveyed on the high front section assembly line to the low rear section assembly line. The cantilever conveying device 10 includes a frame 100, a cam lifting mechanism 200 and a cantilever conveying mechanism 300. The frame 100 is fixedly arranged, and the cam lifting mechanism 200 and the cantilever conveying mechanism 300 are installed on the frame 100. The frame 100 plays a supporting role, wherein:

[0034] The cam lifting mechanism 200 includes a first driving unit 210 and a cam 220. The first driving unit 210 is fixedly mounted on the frame 100. The first driving unit 210 has a first horizontal output shaft 211, and the cam 220 is connected to the first horizontal output shaft 211 by transmission. In the specific setting, the first driving unit 210 can be a motor, in which case the first horizontal output shaft 211 is the output shaft of the motor, and the cam 220 is fixedly mounted on the output shaft of the motor through a bearing; the first driving unit 210 can also be a motor and a speed reduction mechanism rotatably connected thereto, and the speed reduction mechanism can be a gear transmission mechanism or other mechanism that can meet the speed reduction requirements. In this case, the first horizontal output shaft 211 is the output shaft of the speed reduction mechanism, and the cam 220 is fixedly mounted on the output shaft of the speed reduction mechanism through a bearing; of course, the structural form of the first driving unit 210 is not limited thereto, and can also be other structural forms that meet the requirements.

[0035] The cantilever conveying mechanism 300 includes a bracket 310, a second driving unit 320, two cantilever units 330, and a transmission unit 340. The second driving unit 320, the transmission unit 340, and the two cantilever units 330 are mounted on the bracket 310. The bracket 310 is slidably mounted on the frame 100, and the bracket 310 is connected with the cam 220 so that the cam 220 and the bracket 310 are always in contact, so that they can move under the drive of the cam 220.

[0036] The cantilever unit 330 includes two cantilever beams 331, one end of each cantilever beam 331 is installed at the end of the bracket 310 away from the frame 100, and the other end of the cantilever beam 331 extends out of the bracket 310 in a direction away from the cam lifting mechanism 200, so as to carry the products to be transferred from the high front section assembly line and transfer the products to be transferred to the low rear section assembly line; the two cantilever beams 331 are arranged relative to each other at intervals to support the products to be transferred, and the upper part, middle part and bottom part of the two cantilever beams 331 have operating space. In the specific setting, the two cantilever beams 331 can be relatively arranged at the front and rear ends of the bracket 310. At this time, the distance between the two cantilever beams 331 is relatively large. Of course, the positions of the two cantilever beams 331 can also be adjusted according to the requirements of the operating space, and after adjustment, they are fastened to the bracket 310 by screws.

[0037] The transmission unit 340 includes a first transmission shaft 341, a pulley 342 and a belt 343. The first transmission shaft 341 is rotatably mounted on the bracket 310. The pulley 342 is mounted on both ends of the first transmission shaft 341. The belt 343 is movably wound around the pulley 342 and the cantilever beam 331. The second drive unit 320 has a second horizontal output shaft 321, and the second drive unit 320 is transmission-connected to the first transmission shaft 341. In the specific setting, the second drive unit 320 can be a motor. In this case, the second horizontal output shaft 321 is the output shaft of the motor, and the first transmission shaft 341 is connected to the output shaft of the motor through a synchronous transmission mechanism; the second drive unit 320 can also be a motor and a speed reduction mechanism rotatably connected thereto, and the speed reduction mechanism can be a gear transmission mechanism or other mechanism that can meet the speed reduction requirements. In this case, the second horizontal output shaft 321 is the output shaft of the speed reduction mechanism, and the first transmission shaft 341 is connected to the output shaft of the speed reduction mechanism through a synchronous transmission mechanism; of course, the structural form of the second drive unit 320 is not limited to this, and can also be other structural forms that meet the requirements.

[0038] The cantilever conveyor device 10 is used to convey the products to be conveyed on the high front section assembly line to the low rear section assembly line. During the working process, when the cantilever conveyor device 10 is in the low position, the first driving unit 210 is actuated, and the cam 220 is driven to rotate through the first horizontal output shaft 211, and the cam 220 drives the bracket 310 connected thereto to move, and the bracket 310 slides upward relative to the frame 100, and the bracket 310 drives the second driving unit 320, the transmission unit 340, and the two cantilever units 3 installed thereon. 30 slides upward together to achieve rapid ascent; when it rises to be flush with the front section of the assembly line, the products to be transferred on the front section of the assembly line are transferred to the belt 343, at this time, the second driving unit 320 is actuated, and the first transmission shaft 341 is driven to rotate through the second horizontal output shaft 321, and the first transmission shaft 341 drives the pulleys 342 installed at both ends thereof to rotate, and the pulleys 342 drive the belt 343 movably wound thereon to move relative to the cantilever beam 331, so that the products to be transferred are transferred to the belt 343; when the products to be transferred are completed When the whole product is transferred to the belt 343, the first driving unit 210 is activated, and the cam 220 is driven to rotate through the first horizontal output shaft 211, and the cam 220 drives the bracket 310 connected thereto to move, and the bracket 310 slides downward relative to the frame 100, and the bracket 310 drives the second driving unit 320, the transmission unit 340, and the two cantilever units 330 installed thereon to slide downward together, and the product to be transferred moves downward accordingly to achieve rapid descent; when the cantilever conveying device 10 is lowered to a low position and is flush with the rear section assembly line, the rotation of the belt 343 drives the product to be transferred to the rear section assembly line to complete a transfer process, and the transfer process is circulated during the working process to realize the transfer of multiple products to be transferred; in the above-mentioned cantilever conveying device 10, the cam 220 is used to achieve rapid lifting and lowering, the structure is simple, the speed is fast, and the working efficiency is high, and the two cantilever beams 331 are arranged relative to each other at intervals, so that the middle, upper part and bottom of the two cantilever beams 331 have operating space, and other structures can be arranged to facilitate other operations, so that the overall structure is compact.

[0039] In order to facilitate rapid lifting, a preferred implementation is as follows Figure 1 as well as Figure 4As shown, the cam 220 has a rotation axis and a cam surface 221. The rotation axis is parallel to the first horizontal output shaft 211. The cam surface 221 surrounds the rotation axis. The cam surface 221 includes a first surface 222 and a second surface 223. In a direction perpendicular to the rotation axis, the first surface 222 gradually increases in diameter from one end close to the second surface 223 to the other end close to the second surface 223. The bracket 310 is connected with the cam surface 221. The movement of the first horizontal output shaft 211 drives the cam surface 221 to rotate around its rotation axis to drive the bracket 310 to move. When the first surface 222 rotates from one end close to the second surface 223 to the other end close to the second surface 223, the cam surface 221 drives the bracket 310 to rise. When the first surface 222 rotates from the other end close to the second surface 223 to one end close to the second surface 223, the cam surface 221 drives the bracket 310 to descend.

[0040] The above-mentioned cantilever conveyor 10, when specifically configured, when the first drive unit 210 is a motor, at this time, the rotating shaft coincides with the output shaft of the motor, and when the first drive unit 210 is a motor and a deceleration mechanism rotatably connected thereto, at this time, the rotating shaft coincides with the output shaft of the deceleration mechanism. The structural form of the cam surface 221 may only include a first surface 222 and a second surface 223, and along the direction perpendicular to the rotating shaft, the first surface 222 gradually increases in diameter from one end connected to the second surface 223 to the other end connected to the second surface 223. At this time, the cantilever conveyor 10 also includes a sensing mechanism 400, which is used to realize that the cantilever conveyor 10 is kept at a high position for a certain period of time so that the product to be transmitted completely enters the belt 343. The structural form of the cam surface 221 may also include a first surface 222, a second surface 223, a third surface and a fourth surface with a smooth transition. By limiting the different radial directions of the first surface 222, the second surface 223, the third surface and the fourth surface, the rising, pausing, descending and re-pausing processes of the cantilever conveying mechanism 300 can be realized. Of course, the structural form of the cam surface 221 is not limited to this, and may also be other structural forms that meet the requirements.

[0041] The sensing mechanism 400 has various structural forms. To ensure a simple structure and facilitate implementation, specifically, Figure 1 , Figure 3 as well as Figure 4 As shown, the sensing mechanism 400 includes a switch assembly 410 and a locking plate 420, wherein:

[0042] The switch assembly 410 is mounted on the frame 100, and the switch assembly 410 is located at one end of the cantilever beam 331 close to the cam 220. The switch assembly 410 is used to open when the product to be transported starts to enter the belt 343, open when the product to be transported starts to leave the belt 343, close when the product to be transported completely enters the belt 343, and close when the product to be transported completely leaves the belt 343;

[0043] The locking plate 420 is installed on the cam 220, and its extension direction intersects with the end of the first surface 222 close to the second surface 223. One end of the locking plate 420 is close to the end where the first surface 222 and the second surface 223 intersect, and the other end of the locking plate 420 is close to the other end where the first surface 222 and the second surface 223 intersect. When the switch assembly 410 is opened, the locking plate 420 is locked with the switch assembly 410, and when the switch assembly 410 is closed, the locking plate 420 is unlocked from the switch assembly 410.

[0044] The above-mentioned cantilever conveying device 10, when specifically set up, when the cantilever conveying mechanism 300 rises to be flush with the front section assembly line, the switch assembly 410 is used to detect the product to be conveyed. When the edge of the product to be conveyed begins to enter the belt 343, the switch assembly 410 is opened, the locking plate 420 is locked with the switch assembly 410, the cam 220 and the cantilever conveying mechanism 300 stop moving, and the product to be conveyed on the front section assembly line is transferred to the belt 343. When the product to be conveyed completely enters the belt 343, the switch assembly 410 is closed, the locking plate 420 and the switch assembly 410 are unlocked, the cam 220 and the cantilever conveying mechanism 300 continue to move, and the cam 220 drives the cantilever conveying mechanism 300 and the products to be conveyed thereon to descend to a low position. When the products to be conveyed begin to leave the belt 343, the switch assembly 410 opens, the locking plate 420 is locked with the switch assembly 410, the cam 220 and the cantilever conveying mechanism 300 stop moving, and the products to be conveyed on the belt 343 are transferred to the rear section of the assembly line. When the products to be conveyed completely leave the belt 343, the switch assembly 410 is closed, the locking plate 420 and the switch assembly 410 are unlocked, the cam 220 and the cantilever conveying mechanism 300 continue to move, and the cam 220 drives the cantilever conveying mechanism 300 to rise to a high position to complete a conveying process.

[0045] The switch assembly 410 has various structural forms, more specifically, Figure 1 , Figure 3 as well as Figure 4 As shown, the switch assembly 410 includes a reflective photoelectric switch 411, a reflective plate 412 and a support plate 413. The reflective photoelectric switch 411 is installed on the rack 100 through the support plate 413. When the reflective photoelectric switch 411 is turned on, it is locked with the locking plate 420. When the reflective photoelectric switch 411 is turned off, it is unlocked from the locking plate 420. The reflective plate 412 is installed at the end of the bracket 310 away from the rack 100, and the reflective plate 412 is located between the two cantilever beams 331.

[0046] The above-mentioned cantilever conveying device 10, when specifically set up, the reflective photoelectric switch 411 has a transmitter and a receiver, the transmitter is used to emit light to the side of the bracket 310 away from the frame 100, and the receiver is used to receive the light reflected back by the reflective plate 412. When the edge of the product to be transmitted begins to enter the belt 343, the product to be transmitted blocks the reflective plate 412, the light received by the receiver is weakened, the reflective photoelectric switch 411 is opened, and the locking plate 420 is locked with the reflective photoelectric switch 411. When the product to be transmitted completely enters the belt 343, the light received by the receiver is the weakest, the reflective photoelectric switch 411 is closed, and the locking plate 420 is locked with the reflective photoelectric switch 411. 11 is unlocked. When the product to be transmitted starts to leave the belt 343, the light received by the receiver is enhanced, the reflective photoelectric switch 411 is opened, and the locking plate 420 is locked with the reflective photoelectric switch 411. When the product to be transmitted completely leaves the belt 343, the light received by the receiver is the strongest, the reflective photoelectric switch 411 is closed, and the locking plate 420 is unlocked from the reflective photoelectric switch 411. The above-mentioned switch component 410 can realize the rising, pausing, descending and re-pausing processes of the cam 220. Of course, the switch component 410 is not limited to this, and can also be other structural forms that can realize the rising, pausing, descending and re-pausing processes of the cam 220.

[0047] In order to ensure a simple structure and facilitate implementation, in a preferred embodiment, the cam surface 221 includes a first surface 222, a second surface 223, a third surface and a fourth surface connected in sequence, the third surface is located between the first surface 222 and the second surface 223, and the third surface and the first surface 222 and the second surface 223 are smoothly transitioned, the fourth surface is located between the first surface 222 and the second surface 223, and the fourth surface and the first surface 222 and the second surface 223 are smoothly transitioned, wherein:

[0048] Along the direction perpendicular to the rotation axis, the first surface 222 gradually increases in diameter from the end connected to the fourth surface to the end connected to the third surface; when the first surface 222 rotates from the end connected to the fourth surface to the end connected to the third surface, the cam 220 rises.

[0049] Along the direction perpendicular to the rotation axis, the radial directions of the third surface and the fourth surface are the same everywhere;

[0050] Along the direction perpendicular to the rotation axis, the second surface 223 gradually decreases in diameter from the end connected to the third surface to the end connected to the fourth surface; when the second surface 223 rotates from the end connected to the third surface to the end connected to the fourth surface, the cam 220 descends.

[0051] The above-mentioned cantilever conveying device 10, when specifically set up, the bracket 310 is connected with the cam surface 221, and the rotation of the cam surface 221 drives the bracket 310 to move. When the bracket 310 contacts the first surface 222, and the first surface 222 rotates from the end connected to the fourth surface to the end connected to the third surface, the cam 220 drives it to rise, so that the cantilever conveying mechanism 300 rises. When it rises to be flush with the front assembly line, the cam surface 221 rotates until the bracket 310 contacts the third surface. At this time, the height of the bracket 310 remains unchanged, and the edge of the product to be conveyed begins to enter the belt 343. When the cam surface 221 rotates until the bracket 310 contacts the second surface 223, and the first surface 222 rotates from the end connected to the fourth surface to the end connected to the third surface, the cam 220 drives it to rise, so that the cantilever conveying mechanism 300 rises. When it rises to be flush with the front assembly line, the cam surface 221 rotates until the bracket 310 contacts the third surface. At this time, the height of the bracket 310 remains unchanged, and the edge of the product to be conveyed begins to enter the belt 343. When the second surface 223 rotates from the end connected to the third surface toward the end connected to the fourth surface, the cam 220 descends, so that the cantilever conveying mechanism 300 and the products to be conveyed thereon descend. When the cantilever conveying mechanism 300 and the products to be conveyed thereon descend to a low position, the cam surface 221 rotates until the bracket 310 contacts the fourth surface. At this time, the height of the bracket 310 remains unchanged, and the products to be conveyed on the belt 343 are conveyed to the rear section of the assembly line. When the products to be conveyed completely leave the belt 343, the bracket 310 contacts the first surface 222, and the first surface 222 rotates from the end connected to the fourth surface toward the end connected to the third surface to complete a conveying process.

[0052] In order to facilitate the sliding connection between the bracket 310 and the frame 100, a preferred embodiment is as follows: Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, two sliders 110 are relatively fixedly arranged on the frame 100, a slide rail 311 is provided on the bracket 310, and the slide rail 311 is slidably installed on the slider 110. A roller 313 is installed on the bracket 310 through a connecting rod 312, and the roller 313 is connected to the cam 220.

[0053] The above-mentioned cantilever conveying device 10, when specifically set up, the roller 313 can always abut against the cam 220 through the connecting rod 312, and the roller 313 can also be connected with the cam 220 through other structures. The cam 220 drives the roller 313 connected thereto to rise or fall, and the slide rail 311 of the bracket 310 moves up and down on the slider 110 driven by the connecting rod 312 to realize the lifting and lowering of the cantilever conveying mechanism 300. The sliding connection form of the bracket 310 and the frame 100 can be that the slider 110 is set on the frame 100 and the slide rail 311 is set on the bracket 310, and it can also be that the guide rail is set on the frame 100 and the connecting block is set on the bracket 310, and the connecting block can be slidably installed on the guide rail. Of course, it is not limited to this, and it can also be other structural forms that meet the requirements.

[0054] In order to ensure the stability of the movement, Figure 1 , Figure 3 as well as Figure 4 As shown, specifically, one end of the bracket 310 close to the frame 100 is connected to the frame 100 via a tension spring 350; and / or, one end of the bracket 310 close to the frame 100 is provided with a limit baffle 360, and along the sliding direction parallel to the slide rail 311, the projection of the limit baffle 360 ​​on the slider 110 covers the slider 110.

[0055] The cantilever conveyor 10 may be provided with a bolt at one end of the bracket 310 close to the frame 100 to ensure the stability of the movement. One end of the tension spring 350 is connected to the bolt, and the other end of the tension spring 350 is connected to the frame 100 to prevent the bracket 310 from being separated from the frame 100. In order to ensure the stability of the movement, a limit baffle 360 ​​may be provided at one end of the bracket 310 close to the frame 100, and located on the side of the slider 110 away from the cantilever beam 331. When the bracket 310 rises, , the limit baffle 360 ​​is close to the slider 110, and because the projection of the limit baffle 360 ​​on the slider 110 covers the slider 110, when the bracket 310 rises to the maximum, the limit baffle 360 ​​abuts against the slider 110 to prevent the bracket 310 from being separated from the frame 100. Of course, in order to further ensure the stability of the movement, the end of the bracket 310 close to the frame 100 can also be connected to the frame 100 through a tension spring 350, and a limit baffle 360 ​​can be set at the end of the bracket 310 close to the frame 100.

[0056] In order to ensure the movement stability of the belt 343, a preferred embodiment is as follows: Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, the transmission unit 340 also includes a second transmission shaft 344 and a transition wheel 345. The second transmission shaft 344 is installed on the bracket 310 and is located between the cantilever beam 331 and the first transmission shaft 341. The transition wheel 345 is installed at both ends of the second transmission shaft 344. The belt 343 is movably wound between the pulley 342 and the transition wheel 345.

[0057] In the above-mentioned cantilever conveying device 10, when it is specifically set up, the belt 343 is movably wound around the pulley 342 and the cantilever beam 331, and the belt 343 is movably wound between the pulley 342 and the transition wheel 345. The second driving unit 320 is actuated to drive the first transmission shaft 341 to rotate through the second horizontal output shaft 321. The first transmission shaft 341 drives the pulleys 342 installed at both ends thereof to rotate. The pulley 342 drives the belt 343 movably wound thereon to move relative to the cantilever beam 331. At this time, the transition wheel 345 enables the belt 343 to be tightly attached to the cantilever beam 331, thereby ensuring the stability of the movement of the belt 343, thereby ensuring the stable transmission of the products to be transmitted on the belt 343.

[0058] In order to further ensure the movement stability of the belt 343, a preferred embodiment is as follows: Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, the cantilever beam 331 includes a cantilever body 332, two belt idlers 333 and two bearing fixings 334, one belt idler 333 is sleeved on one bearing fixing 334, and the bearing fixing 334 is installed at one end of the cantilever body 332, and the other belt idler 333 is sleeved on the other bearing fixing 334, and the bearing fixing 334 is installed at the other end of the cantilever body 332.

[0059] In the above-mentioned cantilever conveying device 10, when it is specifically set up, the belt 343 is movably wound around the pulley 342, a belt idler 333, the cantilever body 332 and another belt idler 333, and the belt idler 333 is driven to rotate by the bearing fixing member 334 under the movement of the belt 343, thereby ensuring that the belt 343 moves stably when passing through the cantilever body 332, thereby ensuring the stability of the entire movement process.

[0060] A preferred embodiment, as Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, a synchronous pulley 346 is disposed on the first transmission shaft 341 , and the second drive unit 320 is connected to the first transmission shaft 341 through a synchronous belt 347 wound around the synchronous pulley 346 and the second horizontal output shaft 321 .

[0061] In the above-mentioned cantilever conveying device 10, when it is specifically set up, the synchronous pulley 346 is sleeved on the first transmission shaft 341. When the second drive unit 320 is a motor, the synchronous belt 347 is wound around the synchronous pulley 346 and the output shaft of the motor. When the second drive unit 320 is a motor and a speed reduction mechanism rotatably connected thereto, the synchronous belt 347 is wound around the synchronous pulley 346 and the output shaft of the speed reduction mechanism to realize the transmission connection between the first transmission shaft 341 and the second horizontal output shaft 321. Of course, the transmission connection form between the first transmission shaft 341 and the second horizontal output shaft 321 is not limited to this, and can also be other structural forms that meet the requirements.

[0062] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A cantilever conveying device, characterized in that: It includes a frame, a cam lifting mechanism and a cantilever conveying mechanism, wherein: The cam lifting mechanism comprises a first driving unit and a cam mounted on the frame, the first driving unit having a first horizontal output shaft, and the cam is drivingly connected to the first horizontal output shaft; The cantilever conveying mechanism comprises a bracket and a second driving unit mounted on the bracket, a transmission unit, and two cantilever units, the bracket is connected with the cam, and the bracket is slidably mounted on the frame; the cantilever unit comprises a cantilever beam, one end of the cantilever beam is mounted on the end of the bracket away from the frame, and the other end extends out of the bracket in a direction away from the cam lifting mechanism, and the two cantilever beams are arranged opposite to each other at intervals; the transmission unit comprises a first transmission shaft, a pulley and a belt, the first transmission shaft is rotatably mounted on the bracket, the pulley is mounted on both ends of the first transmission shaft, and the belt is movably wound around the pulley and the cantilever beam; the second driving unit has a second horizontal output shaft, and is transmission-connected to the first transmission shaft; The cam has a rotation axis and a cam surface, the rotation axis is parallel to the first horizontal output axis, the cam surface surrounds the rotation axis, the cam surface includes a first surface, a second surface, a third surface and a fourth surface, the third surface and the fourth surface are respectively located between the first surface and the second surface, and are smoothly transitioned with the first surface and the second surface respectively, wherein: Along the direction perpendicular to the rotation axis, the first surface gradually increases in diameter from an end connected to the fourth surface to an end connected to the third surface; Along the direction perpendicular to the rotation axis, the radial directions of the third surface and the fourth surface are the same everywhere; Along a direction perpendicular to the rotation axis, the second surface gradually decreases in diameter from an end connected to the third surface to an end connected to the fourth surface.

2. The cantilever conveying device according to claim 1, characterized in that: It also includes a sensing mechanism, which includes a switch assembly and a locking plate, wherein: The switch assembly is mounted on the frame and is located at one end of the cantilever beam close to the cam, and is used to open when the product to be transported begins to enter or begins to leave the belt, and to close when the product to be transported completely enters or completely leaves the belt; The locking plate is installed on the cam, and its extension direction intersects with the end of the first surface close to the second surface. When the switch assembly is opened, the locking plate is locked with the switch assembly, and when the switch assembly is closed, the locking plate is unlocked from the switch assembly.

3. The cantilever conveying device according to claim 2, characterized in that: The switch assembly includes a reflective photoelectric switch, a reflective plate and a support plate. The reflective photoelectric switch is installed on the frame through the support plate, and the reflective plate locked or unlocked with the locking plate is installed at the end of the bracket away from the frame and is located between the two cantilever beams.

4. The cantilever conveying device according to claim 1, characterized in that: Two sliding blocks are relatively fixedly arranged on the frame, a slide rail is arranged on the bracket, and the slide rail is slidably mounted on the sliding block, and a roller is mounted on the bracket via a connecting rod, and the roller is cooperatively connected with the cam.

5. The cantilever conveying device according to claim 4, characterized in that: One end of the bracket close to the frame is connected to the frame via a tension spring; and / or, one end of the bracket close to the frame is provided with a limit baffle, and along the sliding direction parallel to the slide rail, the projection of the limit baffle on the slider covers the slider.

6. The cantilever conveying device according to claim 1, characterized in that: The transmission unit also includes a second transmission shaft and a transition wheel. The second transmission shaft is installed on the bracket and is located between the cantilever beam and the first transmission shaft. The transition wheel is installed at both ends of the second transmission shaft. The belt is movably wound between the pulley and the transition wheel.

7. The cantilever conveying device according to claim 1, characterized in that: The cantilever beam comprises a cantilever body, two belt idlers and two bearing fixing members, one belt idler is sleeved on one bearing fixing member, and the two bearing fixing members are respectively installed at two ends of the cantilever body.

8. The cantilever conveying device according to claim 1, characterized in that: The first transmission shaft is provided with a synchronous pulley, and the second drive unit is connected to the first transmission shaft through a synchronous belt wound around the synchronous pulley and the second horizontal output shaft.

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