Automatic tray placing equipment
By combining vibration output, lateral conveying, and blowing in the automatic tray placement equipment, the problems of missing, improper placement, and incorrect orientation that easily occur when manually placing button brackets are solved. This achieves efficient and automated tray placement of button brackets and reduces production costs.
Patent Information
- Application Number
- CN202520288351.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-21
AI Technical Summary
In existing technologies, manually placing mobile phone button holders can easily lead to problems such as missing buttons, improper placement, and incorrect orientation, resulting in increased defect rates and higher manufacturing costs.
An automatic tray-stacking device is used, including a vibrating output tray, a conveying channel, a material blocking device, a material limiting device, and a material blowing device. Through a combination of vibration output, lateral conveying, material blocking, and material blowing, the button brackets are arranged in an orderly horizontal position.
This improved the efficiency of button holder placement, reduced defect rates and production costs, and achieved a high degree of automation in button holder placement.
Smart Images
Figure CN223779491U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of mobile phone spare and parts processing, especially relates to an automatic tray placing equipment. BACKGROUND
[0002] Mobile phone card holder, switch key, key support and other mobile phone spare and parts, in the processing, first through die stamping into initial product spare and parts, such as initial product key support, it has plate body, plate body presents strip structure, three through plate body and for key extension hole are set up on plate body, each extension hole is intervally arranged along the length direction of plate body, the position of two extension holes at the end of one side of plate body is equipped with the engagement block that is engaged together with the inside of mobile phone. When initial product key support carries out next process, generally needs to arrange initial product key support to carry out subsequent processing of initial product key support, the existing initial product key support arrangement mode is that the worker fetches the horizontal placement of initial product key support that has order output on vibration output device and puts into tray, after the tray is full, is transported to next process. But manual initial product key support is put into tray and is easy to appear missing, is not put in place and is put in wrong direction and other problems, so it is easy to increase the defective rate, increase manufacturing cost.
[0003] Therefore, the present inventor has made a deep research on the problem and finally has come up with the present application. CONTENT OF THE UTILITY MODEL
[0004] The utility model discloses a kind of automatic tray placing equipment, to solve the problem that existing manual key support is placed and is easy to increase defective rate, increase manufacturing cost.
[0005] In order to achieve the purpose, the utility model uses such technical scheme:
[0006] The application discloses an automatic tray placing device, which comprises a vibration output disc for vibrating and outputting a plurality of key supports in a flat and straight manner and a conveying device connected to the output end of the vibration output disc, wherein the conveying device has a conveying channel for orderly transversely outputting the key supports, the first end of the conveying channel is connected to the output end of the vibration output disc, the conveying device is provided with a tray for placing the key supports outside the second end of the conveying channel, the tray is transversely movably arranged, the transverse moving direction of the tray is perpendicular to the conveying direction of the conveying channel, a containing groove is concavely arranged on the side wall of the conveying channel of the tray and is connected to the top surface of the tray and is used for containing the key supports, the conveying device is provided with a blocking device capable of moving up and down and extending into the conveying channel and blocking the output of the key supports in the conveying channel, and the conveying device is provided with a limiting device capable of moving up and down and extending into the conveying channel and stacking on the key supports in the conveying channel above the second end of the conveying channel, the distance between the limiting device and the blocking device is greater than the length of one key support and is less than the total length of two key supports, and the limiting device is provided with a blowing device with an air outlet facing the conveying channel and blowing the key supports in the conveying channel out of the conveying channel into the containing groove.
[0007] The output end of the vibration output disc and the conveying channel of the conveying device are provided with a horizontal vibration track, the horizontal direction of the horizontal vibration track is the left-right direction, the top surface of the horizontal vibration track is provided with a plurality of feeding channels penetrating through the horizontal vibration track in the left-right direction and used for horizontally laying the key supports in the left-right direction and orderly outputting the key supports into the conveying channel, and the left end of the horizontal vibration track is connected to the output end of the vibration output disc.
[0008] The right side of the vibration output disc is provided with a mounting frame, the conveying device is provided with a conveying plate, the conveying plate is suspendedly mounted on the mounting frame, and the top surface of the conveying plate is concavely provided with a plurality of conveying cavities penetrating through the conveying plate in the left-right direction, the conveying cavities are arranged at intervals in the front-rear direction, the conveying cavities are arranged in left-right opposite and one-to-one communication with the feeding channels, and the conveying cavities constitute the conveying channel, the tray is arranged on the right side of the conveying plate, and the tray is mounted on the mounting frame in a manner that the containing groove and the conveying channel are arranged in left-right opposite communication and the containing groove can move forward and backward.
[0009] The bottom surface of the right end of the conveying plate is concavely provided with a plurality of extension through grooves which extend to the right end of the conveying chamber, the material blocking device is provided with a plurality of material blocking rods which are vertically arranged in the extension through grooves and can be vertically moved into the conveying chamber, the top surface of the conveying plate is concavely provided with a material limiting channel which extends in the front-rear direction and is in communication with each conveying chamber, the material limiting device is provided with a material limiting plate which can be vertically moved into the material limiting channel and is stacked on the key holder in the conveying channel, the distance between the material limiting plate and the material blocking rod is greater than the length of one key holder and less than the total length of two key holders, and the mounting frame is provided with a lifting control device which can control the synchronous lifting or lowering of the material limiting plate and the material blocking rod.
[0010] The lifting control device is provided with a driving cylinder which is vertically arranged on the mounting frame, the output end of the driving cylinder is upwardly arranged, the output end of the driving cylinder is connected with a pushing plate, the right end of the pushing plate is vertically arranged with a vertical plate, the lower end of the material blocking rod is connected with the upper end of the vertical plate, the bottom surface of the conveying plate is connected with a connecting plate which is mounted on the mounting frame, the front and rear ends of the connecting plate extend out of the front and rear ends of the conveying plate, the top surface of the pushing plate is connected with a vertical rod which is sleeved on the front and rear ends of the connecting plate and is vertically arranged, the conveying plate is provided above with a connecting block which is sleeved on the vertical rod, and the connecting block is suspended above the conveying plate, the material limiting plate is connected to the right side of the connecting block and extends downward out of the connecting block into the material limiting channel, and the material blowing device is mounted on the connecting block and extends rightward out of the material limiting plate.
[0011] The material blowing device is provided with a plurality of material blowing pipes, the connecting block is provided with a plurality of mounting channels which extend in the left-right direction and are downwardly inclined from left to right, each material blowing pipe is inclinedly sleeved in each mounting channel, the left end of the material blowing pipe extends out of the left end of the connecting block, the material limiting plate is locked on the right side of the connecting block, the material limiting plate is provided with an opening which extends in the left-right direction at the position of the mounting channel, the right end of the material blowing pipe extends out of the right side of the opening and faces the right end of the conveying chamber, and each material blowing pipe is arranged in alignment with the right end of each conveying chamber.
[0012] The top surface of the conveying plate is locked with an upper limiting plate, the right end of the upper limiting plate extends out of the right end of the conveying plate, the right end of the top surface of the upper limiting plate is concavely provided with a plurality of strip-shaped openings which are arranged in the front-rear direction and are in alignment with each conveying chamber, the strip-shaped openings extend in the left-right direction, the strip-shaped openings are outside the right end of the material blowing pipe and are arranged in alignment with each material blowing pipe, and the top surface of the upper limiting plate is concavely provided with an upper limiting groove which is in communication with the material limiting channel at the position of the material limiting channel.
[0013] The bottom surface of the connecting plate is vertically provided with a side vertical plate, a driving cylinder is vertically installed on the right side of the side vertical plate, the left side of the side vertical plate is connected with a mounting plate extending along the front-rear direction and extending downward outside the bottom surface of the side vertical plate, the right side of the mounting plate is connected with a mounting box stacked below the side vertical plate, the right end of the mounting box is vertically provided with a tray placing seat outside the right side of the conveying plate, the tray is horizontally placed on the tray placing seat along the front-rear direction, the accommodating groove of the tray is arranged towards the left, the left side surface of the tray is in the same straight line with the right side surface of the conveying plate, the groove bottom of the accommodating groove is flush with the inner bottom surface of the conveying channel, and the mounting box is provided with a translation driving device driving the tray placing seat to move forward and backward.
[0014] The top surface of the upper limiting plate is provided with a detection opening communicated with the conveying chamber at the position corresponding to the left end of each conveying chamber, and an optical sensor for measuring whether the key support is in the conveying channel is suspended above the detection opening.
[0015] When the tray is moved to the outside of the second end of the conveying channel and the conveying channel is aligned with the accommodating groove of the tray, the vibration output disc outputs a plurality of key supports into the conveying channel in order, the blocking device moves upward to block the second end of the conveying channel, the limiting device moves upward to the second end of the conveying channel, the key supports can continue to be conveyed, when there is one key support between the limiting device and the blocking device, the blocking device moves downward to the outside of the conveying channel, the limiting device moves downward to the conveying channel to block other key supports to continue to be conveyed, at this time, the blowing device is started to blow the key support between the limiting device and the blocking device into the accommodating groove of the tray, after the key support is conveyed into the tray, the tray continues to move, so that other empty accommodating grooves are aligned with the conveying channel, the limiting device and the blocking device move upward to make the key supports continue to be conveyed, when there is one key support between the limiting device and the blocking device, the limiting device and the blocking device move downward, the blowing device is started to blow the key support into the tray, and the equipment repeatedly performs the above steps until the accommodating grooves in the tray are filled with key supports. Compared with the prior art, the key supports can be automatically and orderly arranged horizontally in the tray, the problems of missing placement, misplacement and incorrect placement direction are avoided, the degree of automation is high, the key support tray arrangement efficiency is improved, and the production cost is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0016] Fig. 1 It is a structural schematic view of the utility model.
[0017] Fig. 2 It is another structural schematic view of the utility model.
[0018] Fig. 3This is another structural schematic diagram of the present utility model. Detailed Implementation
[0019] To further explain the technical solution of this utility model, a detailed description is provided below in conjunction with the accompanying drawings.
[0020] An automatic tray-setting device, such as Figs. 1-3 As shown, the device includes a vibrating output disk (not shown) for several button brackets to vibrate in a straight output manner, and a conveying device connected to the output end of the vibrating output disk. The conveying device has a conveying channel for several button brackets to be output horizontally in an orderly manner. The left end of the conveying channel is connected to the output end of the vibrating output disk. Specifically, a straight vibrating track 1 is provided between the output end of the vibrating output disk and the conveying channel of the conveying device, which is arranged horizontally in the left-right direction. A straight vibrating device 11 is connected to the bottom of the straight vibrating track 1. Several feeding channels are opened on the top surface of the straight vibrating track 1, which are opened horizontally in the left-right direction and allow several button brackets to be laid horizontally in the left-right direction and output to the conveying channel in an orderly manner. The left end of the straight vibrating track 1 is connected to the output end of the vibrating output disk. The conveying device has a conveying plate 2, which has several conveying chambers that are opened horizontally in the left-right direction. Each conveying chamber is arranged at intervals in the front-back direction, and each conveying chamber is arranged opposite to each feeding channel and connected to each other. Each conveying chamber constitutes the above-mentioned conveying channel. The working method of the vibrating output plate horizontally and straightly outputting the button bracket to the straight vibration track 1 in the left and right direction, and the button bracket in the straight vibration track 1 being orderly output to the conveying channel through the straight vibration device 11 are both known technologies. They are similar to the working method of the vibrating plate conveying equipment with application number 2022200181492, in which the vibrating plate conveys the material to the straight vibration track, and the material in the straight vibration track is orderly output through the straight vibration device. Therefore, they will not be described in detail here.
[0021] The conveying device is located at the right end of the conveying channel, and a tray 3 for placing the key support is arranged outside the right end of the conveying channel. The tray 3 is arranged to move transversely, the transverse movement direction of the tray 3 is perpendicular to the conveying direction of the conveying channel, and the left side wall of the tray 3 is concave to form a containing groove that is open to the top surface of the tray 3 and contains the key support. Specifically, the tray 3 is located outside the right side of the conveying plate 2, the containing groove has a plurality of material grooves that are arranged along the front-rear direction of the tray 3 and are open on the left side and the top surface, and the tray 3 is installed on the mounting bracket 4 in a manner that can move forward and backward and make each material groove and each conveying chamber left-right one-to-one opposite communication. The right side of the vibration output disc is provided with a mounting bracket 4, and the conveying plate 2 is suspendedly installed on the mounting bracket 4. The bottom surface of the conveying plate 2 is connected with a connecting plate 21 installed on the mounting bracket 4, that is, the bottom surface of the connecting plate 21 is vertically provided with a side vertical plate 41, the left side of the side vertical plate 41 is connected with a mounting plate 42 extending along the front-rear direction and downwardly extending out of the bottom surface of the side vertical plate 41, the right side of the mounting plate 42 is connected with a mounting box 43 stacked below the side vertical plate 41, and the side vertical plate 41, the mounting plate 42 and the mounting box 43 constitute the above-mentioned mounting bracket 4. The right end of the mounting box 43 is vertically provided with a tray placing seat 431 outside the right side of the conveying plate 2. The tray 3 lies on the top surface of the tray placing seat 431 along the front-rear direction, that is, the tray placing seat 431 has a vertical block and a horizontal block vertically arranged. The vertical block is vertically and slidingly installed on the right side of the mounting box 43, the horizontal block is on the top surface of the vertical block and extends leftward out of the left side of the vertical block, the tray 3 is locked on the top surface of the horizontal block, the material grooves of the tray 3 are arranged to the left, and the groove bottoms of the material grooves are flush with the inner cavity bottoms of the conveying chambers. The left side surface of the horizontal block is on the same straight line as the right side surface of the conveying plate 2, and the mounting box 43 is provided with a translation driving device for driving the tray placing seat 431 to move forward and backward. That is, the front side of the mounting box 43 is provided with a rotating motor 432 extending along the front-rear direction, the output end of the rotating motor 432 is arranged to the rear, and the output end of the rotating motor 432 is connected with a screw rod extending along the front-rear direction. The right side surface of the mounting box is provided with a strip-shaped through hole extending along the front-rear direction. The screw rod is provided with a screw block 4321 extending out of the strip-shaped through hole, and the right side of the screw block 4321 is connected with the vertical block. The rotating motor, the screw rod and the screw block constitute the above-mentioned translation driving device. The rotating motor rotates to drive the screw block to extend out of the strip-shaped through hole and move forward and backward along the screw rod, which is a technology known to those skilled in the art and will not be described here. In application, the rotating motor is started to drive the tray to move, so that the material grooves of the tray are one-to-one aligned and communicated with the conveying chambers.
[0022] The conveying device is provided with a blocking material device capable of moving up and down into the conveying channel and blocking the output of the key support in the conveying channel at the right end of the conveying channel, and a limiting material device capable of moving up and down into the conveying channel and stacking on the key support in the conveying channel is provided above the right end of the conveying device, the spacing between the limiting material device and the blocking material device is greater than the length of one key support and less than the total length of two key supports; Specifically, the bottom surface of the right end of the conveying plate 2 is recessed with a plurality of extension grooves 100 that extend to the right end of the conveying chamber, the blocking material device has a plurality of blocking material rods 5 that are vertically arranged in the extension grooves 100 and can move up and down into the conveying chamber, the top surface of the conveying plate 2 is recessed with a limiting material channel 200 that extends in the front-rear direction and is in communication with each conveying chamber, the limiting material device has a limiting material plate 6 that can move up and down into the limiting material channel 200 and stack on the key support in the conveying channel, the spacing between the limiting material plate 6 and the blocking material rod 5 is greater than the length of one key support and less than the total length of two key supports, and the mounting frame 4 is provided with a lifting control device capable of controlling the synchronous lifting or lowering of the limiting material plate 6 and the blocking material rod 5, that is, the lifting control device has a driving cylinder 7 vertically arranged on the mounting frame 4, the driving cylinder 7 is vertically arranged on the right side of the side vertical plate 41, the output end of the driving cylinder 7 is arranged upward, the output end of the driving cylinder 7 is connected with a push plate 71, the right end of the push plate 71 is vertically provided with a vertical plate 711, the lower end of the blocking material rod 5 is connected with the upper end of the vertical plate 711, the upper end of the blocking material rod 5 extends into the extension groove 100, the front and rear ends of the connecting plate 21 extend out of the front and rear ends of the conveying plate 2, and the top surface of the push plate 71 is connected with a vertical rod 712 that is sleeved on the front and rear ends of the connecting plate 21 and vertically arranged, the conveying plate 2 is provided with a connecting block 7121 that is sleeved on the upper end of the vertical rod 712, and the connecting block 7121 is suspended above the conveying plate 2, the limiting material plate 6 is connected to the right side of the connecting block 7121 and extends downward out of the bottom surface of the connecting block 7121 into the limiting material channel 200, that is, the vertical rod 712 is a circular rod body, the front and rear ends of the connecting plate 21 are recessed with circular through holes that extend upward and downward, the lower ends of the two vertical rods 712 are connected with the push plate 71, and the upper ends of the two vertical rods are connected with the connecting block 7121 through the circular through holes.In use, the driving cylinder 7 is started to drive the push plate 71 to move upwards, and the limiting plate 6 and the blocking rod 5 are synchronously moved upwards. At this time, the blocking rod 5 is blocked on the right end of the conveying channel, the limiting plate 6 is away from the limiting channel 200, and the button support continuously moves right in the conveying channel until the limiting plate 6 and the blocking rod 5 have a button support therebetween. Then, the driving cylinder 7 is started to drive the push plate 71 to move downwards. At this time, the blocking rod 5 moves out of the right end of the conveying channel, and the limiting plate 6 enters the limiting channel 200 to block the button support from continuously moving right. At this time, the straight vibration device and the vibration output disc are also stopped from moving to stop the button support from continuously moving right. Moreover, the above structure only needs to install one driving cylinder to synchronously drive the limiting plate 6 and the blocking rod 5 to move, thereby saving the processing cost.
[0023] The limiting device is provided with a blowing device with its air outlet facing the conveying channel and blowing the button support in the conveying channel out of the conveying channel into the containing groove. Specifically, the blowing device is installed on the connecting block 7121 and extends out of the limiting plate 6 to the right, the blowing device has a plurality of blowing pipes 8, the connecting block 7121 is provided with a plurality of installation channels penetrating in the left-right direction and inclined downward from left to right, each blowing pipe 8 is inclinedly sleeved in each installation channel, the left end of the blowing pipe 8 extends out of the left end of the connecting block 7121, and the mounting frame 4 is provided with a blower (not shown in the figure). The output end of the blower is connected with the left end of the blowing pipe 8. The blower blows air through the blowing pipe 8, which is a technology known to those skilled in the art, and will not be described here. The limiting plate 6 is locked on the right side of the connecting block 7121, and the limiting plate 6 is provided with an opening 300 penetrating in the left-right direction at the position of the installation channel. The right end of the blowing pipe 8 extends out of the right side of the opening 300, and each blowing pipe 8 is arranged in one-to-one correspondence with the right end of each conveying chamber. In use, when a button support is conveyed to the position between the blocking rod 5 and the limiting plate 6, the limiting plate 6 moves downwards into the limiting channel 200 to block the remaining button supports from continuously moving right. The blocking rod 5 moves out of the conveying channel, and the blower is started. The blowing pipe 8 blows the rightmost button support out of the conveying channel and into the groove of the tray 3.
[0024] The application discloses an automatic tray arranging device, which is characterized in that when the tray is moved to the right end of the conveying channel and the conveying channel is aligned with the material groove of the tray, the vibration output tray orderly outputs a plurality of key supports into the conveying channel, the material blocking rod 5 moves upwards and extends into the right end of the conveying channel to block the right end of the conveying channel, the material limiting plate 6 moves upwards synchronously and moves out of the material limiting channel, so that the key support can be conveyed to the right, when there is a key support between the material limiting plate 6 and the material blocking rod 5, the material blocking rod 5 moves downwards and moves out of the right end of the conveying channel, the material limiting plate 6 moves downwards synchronously and moves into the material limiting channel to block the right movement of other key supports, at this time, the material blowing device is started to blow the key support between the material limiting plate 6 and the material blocking rod 5 into the material groove of the tray, after the key support is conveyed into the tray, the tray continues to move forwards, so that other empty material grooves are aligned with the conveying channel, the material blocking rod 5 and the material limiting plate 6 move upwards synchronously to make the key support continue to be conveyed to the right, when there is a key support between the material limiting plate 6 and the material blocking rod 5, the material blocking rod 5 and the material limiting plate 6 move downwards synchronously, the material blowing device is started to blow the key support into the tray, and the device continuously repeats the above steps until the material grooves in the tray are filled with key supports. Compared with the prior art, the key support can be automatically and orderly arranged horizontally in the tray, the problems of missing placement, misplacement and incorrect placement direction are avoided, the degree of automation is high, the tray arranging efficiency of the key support is improved, and the production cost is reduced; in addition, the material limiting plate 6 and the material blocking rod 5 share one lifting control device, the material limiting plate 6 and the material blocking rod 5 can move synchronously, and the equipment cost is reduced.
[0025] Preferably, the top surface of the conveying plate 2 is locked with an upper limiting plate 22, the upper limiting plate 22 is locked on the top surface of the conveying plate 2, the right end top surface of the upper limiting plate 22 is concavely provided with a plurality of strip-shaped openings which are arranged at intervals along the front-rear direction and are in one-to-one correspondence with the conveying chambers, the strip-shaped openings extend along the left-right direction, and each strip-shaped opening is located outside the right end of the blowing pipe 8 and is in one-to-one correspondence with each blowing pipe, the right end of the upper limiting plate 22 extends outside the right end of the lower conveying plate and can be stacked above the accommodating groove of the tray 3, and the top surface of the upper limiting plate 22 is concavely provided with an upper limiting groove which is in communication with the material limiting channel and allows the material limiting plate 6 to extend into the upper limiting groove. When the upper limiting plate 22 is arranged, the key support in the conveying channel can be prevented from jumping out, and the right end of the upper limiting plate 22 of the tray can also prevent the key support from jumping out.
[0026] Preferably, the top surface of the conveying plate 2 is provided with a detection opening corresponding to the left end of each conveying chamber, and an optical sensor for detecting whether there is a key support in the conveying channel is suspended above the detection opening.
[0027] The product form of the utility model is not limited to the drawings and examples of the case, and any appropriate changes or modifications of similar ideas by anyone shall be considered as not departing from the patent category of the utility model.
Claims
1. An automatic tray placing apparatus characterized by comprising: The vibration output disc includes a plurality of key support vibration output in a straight output mode, and a conveying device connected to the output end of the vibration output disc, the conveying device has a conveying channel for orderly horizontal output of the key support, the first end of the conveying channel is connected to the output end of the vibration output disc, and a tray for placing the key support is arranged at the second end of the conveying channel of the conveying device, the tray is horizontally movable, the horizontal movement direction of the tray is perpendicular to the conveying direction of the conveying channel, a containing groove is concavely arranged on one side wall of the conveying channel of the tray, and the containing groove is connected to the top surface of the tray and used for containing the key support, a blocking device is arranged at the second end of the conveying channel of the conveying device, the blocking device can move up and down into the conveying channel and block the output of the key support in the conveying channel, a limiting device is arranged above the second end of the conveying channel of the conveying device, the limiting device can move up and down into the conveying channel and be stacked on the key support in the conveying channel, the distance between the limiting device and the blocking device is greater than the length of one key support and less than the total length of two key supports, and a blowing device is arranged on the limiting device, the air outlet of the blowing device is directed to the conveying channel, and the blowing device blows the key support in the conveying channel out of the conveying channel and into the containing groove.
2. An automatic tray placing apparatus according to claim 1, characterized in that: The output end of the vibration output disc is connected to the conveying channel of the conveying device, and a straight vibration track is horizontally arranged between the output end of the vibration output disc and the conveying channel of the conveying device, the horizontal direction of the straight vibration track is the left-right direction, a plurality of feeding channels are arranged on the top surface of the straight vibration track and penetrate the straight vibration track in the left-right direction, the key supports are horizontally arranged in the feeding channels in the left-right direction and orderly output into the conveying channel, and the left end of the straight vibration track is connected to the output end of the vibration output disc.
3. An automatic tray placing apparatus according to claim 2, characterized in that: A mounting frame is arranged on the right side of the vibration output disc, the conveying device has a conveying plate, the conveying plate is suspended on the mounting frame, and a plurality of conveying cavities penetrating the conveying plate in the left-right direction are concavely arranged on the top surface of the conveying plate, the conveying cavities are arranged in the front-rear direction, each conveying cavity is in communication with each feeding channel in the left-right direction, each conveying cavity constitutes the conveying channel, the tray is arranged on the right side of the conveying plate, and the tray is arranged on the mounting frame in a manner that the containing groove is in communication with the conveying channel in the left-right direction.
4. An automatic tray placing apparatus according to claim 3, characterized in that: A plurality of extension grooves are concavely arranged on the bottom surface of the right end of the conveying plate, each extension groove is connected to the right end of each conveying cavity, the blocking device has a plurality of blocking rods, each blocking rod is vertically arranged in each extension groove and can move up and down into each conveying cavity, a limiting channel penetrating the conveying plate in the front-rear direction and in communication with each conveying cavity is concavely arranged on the top surface of the conveying plate, the limiting device has a limiting plate, the limiting plate can move up and down into the limiting channel and be stacked on the key support in the conveying channel, the distance between the limiting plate and the blocking rod is greater than the length of one key support and less than the total length of two key supports, and a lifting control device is arranged on the mounting frame and can control the limiting plate and the blocking rod to synchronously rise or fall.
5. An automatic tray placing apparatus according to claim 4, characterized in that: The lifting control device has a driving cylinder vertically arranged on the mounting frame, the output end of the driving cylinder is arranged upward, the output end of the driving cylinder is connected with a push plate, the right end of the push plate is vertically arranged with a vertical plate, the lower end of the material blocking rod is connected with the upper end of the vertical plate, the bottom surface of the conveying plate is connected with a connecting plate mounted on the mounting frame, the front and rear ends of the connecting plate extend out of the front and rear ends of the conveying plate, and the top surface of the push plate is connected with a vertical rod sleeved on the front and rear ends of the connecting plate and vertically arranged, the conveying plate is provided with a connecting block with both ends sleeved on the vertical rod, and the connecting block is suspended above the conveying plate, the material limiting plate is connected on the right side of the connecting block and extends downward out of the connecting block into the material limiting passage, and the material blowing device is mounted on the connecting block and extends rightward out of the material limiting plate.
6. An automatic tray placing apparatus according to claim 5, characterized in that: The material blowing device has a plurality of blowing pipes, a plurality of mounting channels penetrating in the left-right direction and inclined downward from left to right are formed on the connecting block, each blowing pipe is inclined and sleeved in each mounting channel, and the left end of the blowing pipe extends out of the left end of the connecting block, the material limiting plate is locked on the right side of the connecting block, and the material limiting plate is provided with an opening penetrating in the left-right direction at the position of the mounting channel, the right end of the blowing pipe extends out of the right side of the opening and faces the right end of the conveying chamber, and each blowing pipe is arranged in one-to-one correspondence with the right end of each conveying chamber.
7. An automatic tray placing apparatus according to claim 5, characterized in that: The top surface of the conveying plate is locked with an upper limiting plate, the right end of the upper limiting plate extends out of the right end of the conveying plate, and the right end of the upper limiting plate is recessed with a plurality of strip-shaped openings arranged in the front-rear direction and in one-to-one correspondence with each conveying chamber, the strip-shaped openings extend in the left-right direction, the strip-shaped openings are outside the right end of the blowing pipe and are arranged in one-to-one correspondence with each blowing pipe, and the top surface of the upper limiting plate is recessed with an upper limiting groove in communication with the material limiting passage at the position of the material limiting passage.
8. An automatic tray placing apparatus according to claim 5, characterized in that: The bottom surface of the connecting plate is vertically arranged with a side vertical plate, the driving cylinder is vertically mounted on the right side of the side vertical plate, the left side of the side vertical plate is connected with a mounting plate extending in the front-rear direction and extending downward out of the bottom surface of the side vertical plate, the right side of the mounting plate is connected with a mounting box stacked below the side vertical plate, the right end of the mounting box is vertically arranged with a tray placing seat outside the right side of the conveying plate, the tray lies in the front-rear direction on the tray placing seat, the accommodation groove of the tray is arranged to the left, the left side surface of the tray is in the same straight line with the right side surface of the conveying plate, the groove bottom of the accommodation groove is flush with the inner bottom surface of the conveying passage, and the mounting box is provided with a translation driving device driving the tray placing seat to move forward and backward, and the side vertical plate, the mounting plate and the mounting box constitute the mounting frame.
9. An automatic tray placing apparatus according to claim 7, characterized in that: The top surface of the upper limiting plate is provided with a detection opening in communication with the conveying chamber at the position corresponding to the left end of each conveying chamber, and an optical sensor for measuring whether the key support is in the conveying passage is suspended above the detection opening.