CN112209145A

CN112209145A - Charging tray and material belt conversion equipment

Info

Publication number: CN112209145A
Application number: CN202011092933.XA
Authority: CN
Inventors: 郝杰; 祝斌; 张晓荣; 卞程辉; 谷新
Original assignee: Luxshare Electronic Technology Kunshan Ltd
Current assignee: Luxshare Electronic Technology Kunshan Ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-01-12
Anticipated expiration: 2040-10-13
Also published as: CN112209145B

Abstract

The switching equipment of the charging tray and the material belt comprises a machine table, a feeding unit, a middle turntable and a switching unit, wherein the feeding unit, the middle turntable and the switching unit are arranged on the machine table, and the feeding unit, the middle turntable and the switching unit are electrically connected to a control device. The control device drives the first material tray on the feeding unit to convey the material belt to the middle rotating disc, and then drives the middle rotating disc to move to the conversion unit, so that the material belt on the middle rotating disc is transferred to the second material tray of the conversion unit under the assistance of the manipulator. The diameter of the second material tray is larger than that of the first material tray, so that a longer material belt and more materials can be accommodated. Therefore, in subsequent production, the second material tray is used for replacing the first material tray for feeding, so that operators do not need to frequently replace the material tray, the time for stopping and replacing the material tray is obviously reduced, the productivity of the equipment is effectively increased, and the labor burden of the operators is relieved.

Description

Charging tray and material belt conversion equipment

Technical Field

The invention relates to the field of electronic device assembly, in particular to a material tray and material belt conversion device.

Background

In the assembly industry of electronic products, electronic components (such as capacitors or resistors) are Mounted on a PCB (Printed Circuit Board) by an SMT (Surface mount Technology) process to form a Circuit Board. Electronic components are generally carried on an SMT tape and transported to an associated production line by an SMT tape transport apparatus for mounting, and the traditional SMT tape transport apparatus uses small-sized trays to provide the SMT tape, for example, 7-inch trays. Due to the small size of the tray, the length of the strip of material contained therein is limited, and the number of electronic components on a single tray is limited, for example only 15000 or 20000, which is consumed quickly in the production line feeding. In actual production, the material tray needs to be frequently replaced by operators to provide a new material belt, the material replacement period is short, the labor intensity of the operators is high, the machine is stopped, the material is frequently waited for, and the output efficiency of the equipment is low.

Disclosure of Invention

In view of this, an object of the embodiments of the present invention is to provide a tray and tape converting apparatus, which converts a tape on a small-sized tray to a large-sized tray, so that a material changing period is significantly increased when a large-sized tray is used for feeding in subsequent operations, thereby effectively improving production efficiency and reducing labor burden of operators.

The embodiment of the invention provides a charging tray and material belt conversion device, which comprises:

a machine platform;

the feeding unit is arranged on the machine table and is provided with a material cavity for accommodating a first material disc;

the middle rotating disc is arranged on the machine table;

the conversion unit is arranged on the machine table and comprises a first bearing table for bearing a second material tray and a manipulator movably arranged relative to the first bearing table; and

the control device is electrically connected with the feeding unit, the middle turntable and the conversion unit, and is configured to control the feeding unit to splice the material belts led out from the first material tray and convey the material belts to the middle turntable, then control the middle turntable to rotate and/or move to the conversion unit, and then control the manipulator to transfer the material belts on the middle turntable to the second material tray;

the diameter of the first material tray is smaller than that of the second material tray.

Further, the supply unit includes:

the feeding unit is provided with a feeding cavity;

a strip conveying track connecting the material cavity and the middle turntable and used for conveying the strip; and

and the material receiving unit and the material belt conveying track are positioned on the same side of the material loading unit and are configured to splice the material belt on the material belt conveying track.

Further, the material receiving unit comprises:

the material cutting mechanism is movably arranged on one side of the material belt conveying track and is configured to cut the head and tail blank sections of the material belt;

the sticking and folding mechanism is movably arranged below the material belt conveying track and is configured to stick the material belt cut by the material cutting mechanism on the material belt conveying track to a material receiving belt and drive the material receiving belt to bend; and

and the pressing mechanism is movably arranged above the material belt conveying track and is configured to press and tightly attach the bent part of the material belt on the material belt to the material belt.

Further, the conversion equipment of charging tray and material area still includes:

the material number identification device is arranged on the machine table, is electrically connected to the control device, and is used for identifying the material number of the first material disc, returning the material number to the control device and judging whether the spliced materials are the same material number; and

and the material belt head and tail section identification device is arranged on the machine table, is electrically connected to the control device and is used for identifying the head and tail blank sections of the material belt and returning the identification information to the control device.

Furthermore, a material number identification device is arranged on one side of the feeding unit, a first driving unit is arranged below the feeding unit and used for driving the first material disc in the material cavity to ascend or descend, and the material number identification device faces a path where the first material disc ascends.

Furthermore, a material belt head and tail section identification device is arranged on one side of the material receiving unit and faces the material belt conveying track.

Further, a second driving unit is arranged below the middle turntable and used for driving the middle turntable to rotate and/or move.

Further, the conversion unit further includes:

the empty tray bin is arranged above the first bearing table and used for containing the second tray, a third driving unit is arranged below the first bearing table and used for driving the first bearing table to rise or fall.

Further, the conversion unit further includes: the second bearing table and the first bearing table are arranged on the machine table in parallel, the middle rotating disc moves to the second bearing table under the control of the control device, and the manipulator is movably arranged relative to the second bearing table.

Further, the conversion unit is also provided with a disc taking window.

According to the material tray and material belt conversion equipment provided by the embodiment of the invention, the material belt provided by the first material tray on the feeding unit is transferred to the second material tray on the conversion unit by arranging the middle rotating disc, wherein the diameter of the first material tray is larger than that of the second material tray, so that the material changing period is obviously increased when the material trays with large sizes are adopted for feeding in subsequent operation, the production efficiency is effectively improved, and the labor burden of operators is reduced.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

fig. 1 is a perspective view of a tray and tape converting apparatus according to an embodiment of the present invention;

FIG. 2 is an angled perspective view of a loading unit according to an embodiment of the present invention;

FIG. 3 is a perspective view of another angle of the loading unit of the embodiment of the present invention;

FIG. 4 is a schematic structural view of a second tray according to an embodiment of the invention;

fig. 5 is a schematic structural diagram of a feeding unit and a tape conveying track according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a receiving unit, a middle rotary table and a material belt conveying track according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a cut-out of a strip of material according to an embodiment of the present invention;

fig. 8 is a schematic illustration of splicing a strip of material according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of the receiving unit and the middle rotary table according to the embodiment of the invention;

FIG. 10 is a schematic view of the rotation of the center turntable according to an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of a conversion unit according to an embodiment of the present invention;

FIG. 12 is a schematic view of the connection of a control device according to an embodiment of the present invention;

fig. 13 is a flowchart of the control device controlling the tray and the tape to perform tape switching according to the embodiment of the present invention.

Detailed Description

The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.

Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

Unless the context clearly requires otherwise, throughout the description, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".

In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Fig. 1-13 are schematic views of a tray and tape converting apparatus according to an embodiment of the present invention. As shown in fig. 1, the changing device for material trays and material strips comprises a machine table 1, a feeding unit 2, a middle rotating disc 3, a changing unit 4 and a control device 5 (not shown in fig. 1). The feeding unit 2, the middle rotating disc 3 and the converting unit 4 are all disposed on the machine table 1, the feeding unit 2 further has a material cavity 211 (see fig. 5) for accommodating a first material disc 901, and the converting unit 4 further has a first bearing table 421 for bearing a second material disc 902. The control device 5 may be a computer with a predetermined program or other electronic devices with the same function, which is disposed below the machine 1 or outside the machine 1 and electrically connected to the feeding unit 2, the middle rotating disc 3 and the converting unit 4 through an industrial data bus, respectively, and is configured to control the feeding unit 2 to splice the material strip 900 drawn from the first material tray 901 preset in the material cavity 211, and convey the spliced material strip 900 to the middle rotating disc 3, control the middle rotating disc 3 to rotate and/or move to the converting unit 4, and then control the manipulator 423 to transfer the material strip 900 on the middle rotating disc 3 to the second material tray 902 preset on the first loading table 421 of the converting unit 4. The diameter of the second tray 902 is larger than that of the first tray 901, that is, the second tray 902 can accommodate a longer strip 900 and more materials. Therefore, in subsequent operation, the second material tray 902 is used for replacing the first material tray 901 for feeding, the time for a single material tray to consume all materials on the material tray is obviously prolonged, the period of material changing is obviously prolonged, operators do not need to frequently change new material trays, the time for stopping the equipment and waiting materials is reduced, the output efficiency of the equipment is effectively improved, and the (material changing) labor burden of the operators is reduced.

In the present embodiment, as shown in fig. 1, the feeding unit 2 and the converting unit 4 are disposed in parallel on one side of the machine table 1, and the middle rotary table 3 is disposed on the other side of the machine table 1. It should be understood that such an arrangement is merely a preferred arrangement, resulting in a more efficient cooperation between the mechanisms. In some other alternative embodiments, the arrangement positions of the mechanisms on the machine platform 1 are not limited to the case in the present embodiment as long as the same functions can be achieved by the same mechanisms as in the present embodiment.

As shown in fig. 4, the center of the tray has a central axis, fig. 4 illustrates the position of the central axis 902a by taking the second tray 902 as an example, the tape 900 (not shown in fig. 4) is wound on the central axis 902a, and the outermost layer 900a of the tape 900 does not exceed the outer contour of the second tray 902. The structure of the first tray 901 and the middle rotating disc 3 and the winding manner of the material belt 900 are similar to those of the second tray 902 shown in fig. 4, and are not described again.

In order to improve the conversion efficiency of the tray and the carrier tape, a plurality of material cavities 211 may be provided, and one first tray 901 is provided in each material cavity 211. Since the amount of material that the second tray 902 can carry is directly related to the length of the strip of material 900 on the second tray, providing more cavities 211 and the first tray 901 allows a single second tray 902 to be transferred and store a longer strip of material 900. For example, as shown in fig. 2, in the present embodiment, 4 material cavities 211 are provided, and the 4 material cavities 211 are arranged in parallel. In actual operation, an operator needs to pull the material cavity sliding door 2110 (see fig. 3) to further pull out the material cavity 211, place the first material tray 901 in the material cavity 211 and then push back the material cavity 211 to complete the presetting of the first material tray 901. In this embodiment, the first tray 901 has a diameter of 7 inches, and the second tray 902 has a diameter of 13 inches, so that the material tapes 900 on 4 first trays 901 having a diameter of 7 inches can be completely transferred to the second tray 902 having a diameter of 13 inches, and only a small gap (see fig. 4, a gap L between the outermost layer 900a of the material tape and the outer contour of the tray) is left on the second tray 902 to avoid space waste. In some other alternative embodiments, the diameter sizes of the first tray 901 and the second tray 902 are not limited to the case of the present embodiment. The first trays 901 with different diameter sizes (and numbers) and the second trays 902 with different diameter sizes can be designed (calculated and the like) to adapt to different production lines or different feeding requirements.

Preferably, a first driving unit 213 (including but not limited to a cylinder, a motor, etc.) is disposed below the feeding unit 211, and the first driving unit 213 is electrically connected to the control device 5 for driving the first tray 901 in the material cavity 211 to be lifted out of the material cavity 211 or to be lowered back into the material cavity 211. A material number identification device 212 is further disposed on one side of the feeding unit 21, and the material number identification device 212 is raised toward the first tray 901. The corresponding position of the first tray 901 has a material number, and the material numbers are different according to the different materials on the material belt 900 contained in the first tray 901, and correspondingly, the same materials have the same material numbers. The material number identification device 212 is used for detecting the material number on the lifted first tray 901. The material number identification device 212 may be an intelligent identification module with a camera, which is electrically connected to the control device 5 and can interact with the control device 5. The material number identification device 212 transmits the identified material number back to the control device 5, and only when the identified material number is the same batch of material, the control device 5 drives the first material tray 901 to descend the material return cavity 211 and carry the material. If the material numbers are different, the next operation is not carried out and an alarm is given. For example, the tape 900 may be a Surface Mount Technology (SMT) tape, the material transported by the SMT tape is electronic components used in the SMT mounting process, and the material number on the first tray 901 corresponds to the type of the electronic components (such as capacitors, resistors, etc.) on the SMT tape.

In this embodiment, the supply unit 2 includes a feeding unit 21 and a receiving unit 22, the material cavity 211 is located in the feeding unit 21, the feeding unit 21 and the receiving unit 22 are connected by a material belt conveying rail 20, and the material belt conveying rail 20 is used for conveying a material belt 900 led out from the feeding unit 21 to the receiving unit 22 for cutting and splicing. Specifically, as shown in fig. 5 and 6, fig. 5 and 6 show the relative relationship between the mechanisms in a simple line diagram for convenience of explanation. The front end of the feeding unit 21 has a gear 2111, and a tape conveying rail 20 is connected to a position where the outer side of the feeding unit 21 is aligned with the gear 2111, and the tape 900 drawn from the first tray 901 is overlapped on the gear 2111 and is continuously drawn onto the tape conveying rail 20. Thereby, the tape feed of the feeding unit 21 is driven by the gear 2111.

Since blank sections are present at the beginning and end of the strip 900 (the blank sections are used to connect the strip 900 to a tray or other strip), the blank sections need to be cut. In actual operation, the first coiled material belt is prepared manually. Specifically, after the first tray 901 is preset in the material cavity 211, the first section of the material tape 900 is manually drawn out, and then placed on the material tape conveying track 20 through the gear 2111, and then the blank 9001 of the first section of the material tape 900 is cut, as shown in fig. 7. The cut material belt 900 is continuously drawn to the middle rotating disc 3, a cylinder press button (not shown in the figure) is arranged on the central shaft of the middle rotating disc 3, the material belt 900 is pressed and fixed by the cylinder press button, then the cylinder (not shown in the figure) retracts and is clamped on the machine table 1, the material belt conveying track 20 is driven to retract to avoid interfering the rotation of the middle rotating disc 3, a second driving unit 32 (including but not limited to a cylinder, a motor and the like) is arranged below the middle rotating disc 3, the second driving unit 32 is electrically connected to the control device 5 and is controlled by the control device 5, and the second driving unit 32 drives the middle rotating disc 3 to rotate so as to wind the material belt 900 which is pressed and fixed by the cylinder onto.

As shown in fig. 6, a tape end and end identification device 224 is disposed at one side of the receiving unit 22, and the tape end and end identification device 224 faces the tape conveying track 20 and is used for detecting an end and end blank section of the tape 900 conveyed on the track. The strip end and tail section identification device 224 may be an intelligent identification module with a camera, which is electrically connected to the control device 5 and can interact with the control device 5. When the middle rotary table 3 continuously winds the material belt 900 until the material belt 900 on the first material disc 901 is completely consumed, the tail section blank 9002 of the material belt 900 moves along the material belt conveying track 20 and is identified by the material belt head and tail section identification device 224, and the control device 5 controls the second driving unit 32 to stop the rotation of the middle rotary table 3. After the first coil tray is fed, the second coil tray is fed, and the first blank 9001 of the material belt 900 of the second coil tray and the tail blank 9002 of the material belt 900 of the first coil tray need to be cut by the material receiving unit 22 and spliced together. The splicing of the head section and the tail section of the material belt can be completed automatically by equipment or manually.

As shown in fig. 7 and 8, in the present embodiment, the receiving unit 22 includes a material cutting mechanism 221, a folding mechanism 222, and a pressing mechanism 223. For convenience of explanation, fig. 7 and 8 illustrate the relative relationship between the mechanisms in a simple line drawing, and the tape conveying rail 20 is not shown. The material cutting mechanism 221 is movably disposed at one side of the material tape conveying track 20 and electrically connected to the control device 5, the folding mechanism 222 is movably disposed below the material tape conveying track 20 and electrically connected to the control device 5, and the pressing mechanism 223 is movably disposed above the material tape conveying track 20 and electrically connected to the control device 5. The material cutting mechanism 221 may be a pair of scissors, a rotary gear, or other cutting mechanism controlled by the control device 5, as shown in fig. 7 (fig. 7 illustrates the material cutting mechanism 221 as a pair of scissors), and the material cutting mechanism 221 cuts and completely cuts off the end blank 9002 and the first blank 9001 of the two front and rear material tapes 900 on the material tape conveying track 20 (not shown in fig. 7) under the control of the control device 5. The attaching and folding mechanism 222 may be a robot, etc., as shown in fig. 8, after the head and tail blank sections of the material tape 900 are cut, the attaching and folding mechanism 222 attaches one side of the material receiving tape 903 to the lower surface of the cut material tape 900 in alignment under the control of the control device 5, and the attaching covers the lower surfaces of the front and rear material tapes 900. The folding mechanism 222 then folds the material receiving tape 903 (along the dotted line of the material receiving tape 903 in fig. 8) to further adhere the folded portion to the upper surfaces of the two material tapes 900, so that only the material film of the material tape is adhered, and the material film can be smoothly peeled off in the production process. That is, the width of the material receiving tape 903 is greater than the width of the material tape 900, and preferably, the width of the material receiving tape 903 is greater than the width of the material tape 900, and the material film on the upper surface of the material tape may be adhered, so that the material receiving tape 903 may be attached to the upper and lower surfaces of the material tape 900 right after being bent once and may not exceed the material tape 900. The pressing mechanism 223 may be a pressing hammer, a pressing plate, or a mechanical arm, as shown in fig. 8, the pressing mechanism 223 is located above the bent portion of the tape receiving strip 903, and is pressed down onto the tape 900 on the tape conveying track 20 (not shown in fig. 8) and the bent portion of the tape receiving strip 903 under the control of the control device 5, so as to completely attach the tape receiving strip 903 onto the tape 900 to complete the end-to-end splicing of the two tapes 900.

In this embodiment, after all the tapes 900 on the four first trays 901 are transferred onto the middle turntable 3, as shown in fig. 1, 9-11, the second driving unit 32 drives the middle turntable 3 to rotate (90 °) from the vertical state set on the machine table 1 so as to be converted into the horizontal state, and then drives the horizontal middle turntable 3 to move onto the second loading table 422 of the converting unit 4. The second bearing table 422 and the first bearing table 421 are arranged in parallel on the machine table 1, and the second bearing table 422 and the first bearing table 421 are adjacent to each other or have a predetermined distance therebetween, where the predetermined distance does not exceed the moving range of the manipulator 423. An empty tray bin 41 for accommodating the second tray 902 is arranged above the first bearing table 421, and a third driving unit 43 (including but not limited to a cylinder, a motor, etc.) is arranged below the first bearing table 421. The third driving unit 43 is electrically connected to the control device 5, and after the middle rotary table 3 is driven by the second driving unit 32 to move to the second bearing table 422, the third driving unit 43 drives the first bearing table 421 to ascend to the empty tray bin 41 and take out one second tray 902, and then drives the first bearing table 422 to descend. The control device 5 controls the manipulator 423 of the switching unit 4 (the manipulator 423 is electrically connected to the control device 5) to pull the first section of the carrier tape 900 on the middle turntable 3 to the second tray 902 on the first carrier 421, and the central axis of the second tray 902 has a notch or a buckle to fix the carrier tape 900. Then the manipulator 423 retracts, the second tray 902 rotates, so that the material belt 900 on the middle rotating disc 3 is wound on the second tray 902, and when the winding is finished, the manipulator 423 pastes an adhesive tape on the tail section of the material belt 900 on the second tray 902 to seal and fix the tray. Preferably, the converting unit 4 further includes a tray taking window 44 (see fig. 1), the tray taking window 44 is disposed on the other side of the first bearing table 421 relative to the second bearing table 422, and the operator can take the converted second tray 902 out of the tray taking window 44.

Fig. 13 is a flowchart of the control device 5 controlling the material tray and material tape converting apparatus to perform the material tape converting operation according to the embodiment of the present invention. As shown in fig. 13, the process includes:

in step S1300, the first driving unit 213 drives a plurality of (four in this embodiment) first trays 901 in the material cavity 211 to sequentially rise, and the material number identification device 212 respectively identifies the material numbers on the first trays 901 and determines whether the material numbers are consistent; if not, an alarm is given; if yes, the process proceeds to step S1310.

In step S1310, the conveyor belt 900 is transferred to the middle turntable 3 along the belt conveying track 20.

Step S1320, the tape head and tail section identification device 224 on one side of the tape conveying track 20 determines whether a blank section of the tape 900 is identified; if not, the material belt 900 continues to transport; if yes, the process proceeds to step S1330.

Step S1330 of determining whether there is a first tray 901 loaded with the carrier tape 900 in the material cavity 211; if yes, the material receiving unit 22 is controlled to cut and splice the material belt 900 and then the material belt is transported continuously; if not, go to step S1340.

Step S1340, judging whether the material belt 900 is completely transferred to the middle turntable 3; if not, the material belt 900 is transported continuously; if yes, the process proceeds to step S1350.

In step S1350, the second driving unit 32 drives the middle rotary table 3 to rotate to the horizontal state and then move onto the second bearing table 422 of the converting unit 4.

In step S1360, the manipulator 423 pulls the first section of the carrier tape 900 on the middle turntable 3 to the second tray 902 of the first carrier 421 for fixing.

In step S1370, the second tray 902 rotates to guide the carrier tape 900 to be continuously wound from the middle turntable 3 to the second tray 902.

Step S1380, judging whether the material belt 900 is completely transferred and wound from the middle turntable 3 to the second material disc 902; if not, the second tray 902 continues to rotate; if yes, the process proceeds to step S1390.

In step S1390, a tape is attached to the tape 900 on the second tray 902, and the tape is sealed and fixed. After the disk sealing is completed, the machine 1 automatically performs a labeling action on the second material disk 902, and identifies the label code after the labeling is completed, whether the label code is the current printing code or not, and if the label code is the current printing code, the second material disk 902 is transported to the disk taking window 44 by a manipulator; if not, the machine 1 gives an alarm and prints the label code again.

Thus, the capped second tray 902 can be removed through the tray removal window 44 or other location for feeding in a subsequent SMT pick and place process.

The switching equipment of charging tray and material area of this embodiment drives the feed unit through controlling means and will be drawn forth and cut out the material area that splices to well carousel by first charging tray, then drives well carousel and moves to switching unit department, and the drive manipulator shifts the material area of well carousel to the second charging tray on. In subsequent production, the large-size material tray is used for replacing the small-size material tray to provide materials, so that operators do not need to frequently replace the material tray, the time for stopping and replacing the material tray is obviously shortened, the productivity of equipment is effectively increased, and the labor burden of the operators is relieved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a change-over equipment in charging tray and material area which characterized in that includes:

a machine table (1);

the feeding unit (2) is arranged on the machine table (1), and a material cavity (211) for accommodating a first material tray (901) is formed in the feeding unit (2);

the middle rotating disc (3) is arranged on the machine table (1);

the conversion unit (4) is arranged on the machine table (1), and the conversion unit (4) comprises a first bearing table (421) for bearing a second material tray (902) and a manipulator (423) movably arranged relative to the first bearing table (421); and

the control device (5) is electrically connected with the feeding unit (2), the middle rotating disc (3) and the conversion unit (4), and the control device (5) is configured to control the feeding unit (2) to splice the material strips (900) led out from the first material disc (901), convey the material strips (900) to the middle rotating disc (3), control the middle rotating disc (3) to rotate and/or move to the conversion unit (4), and control the manipulator (423) to transfer the material strips (900) on the middle rotating disc (3) to the second material disc (902);

wherein the diameter of the first tray (901) is smaller than that of the second tray (902).

2. The tray and tape changing apparatus according to claim 1, wherein the feeder unit (2) comprises:

the feeding unit (21), the feeding cavity (211) is positioned in the feeding unit (21);

a tape conveying track (20), wherein the tape conveying track (20) is connected with the material cavity (211) and the middle turntable (3) and is used for conveying the tape (900); and

the material receiving unit (22), the material receiving unit (22) and the material belt conveying track (22) are located on the same side of the material loading unit (21) and are configured to splice the material belt (900) on the material belt conveying track (20).

3. The tray and strip converting apparatus according to claim 2, wherein the receiving unit (22) comprises:

the material cutting mechanism (221) is movably arranged on one side of the material belt conveying track (20), and the material cutting mechanism (221) is configured to cut the head and tail blank sections of the material belt (900);

the sticking and folding mechanism (222) is movably arranged below the material belt conveying track (20), and the sticking and folding mechanism (222) is configured to stick a material receiving belt (903) to the material belt (900) cut by the material cutting mechanism (221) on the material belt conveying track (20) and drive the material receiving belt (903) to bend; and

the pressing mechanism (223) is movably arranged above the material belt conveying track (20), and the pressing mechanism (223) is configured to press and tightly attach the bent part of the material belt (903) on the material belt (900) to the material belt (900).

4. The tray and tape converting apparatus of claim 2, further comprising:

the material number identification device (212) is arranged on the machine table (1), is electrically connected to the control device (5), and is used for identifying the material number of the first material tray (901) and returning the material number to the control device (5); and

the material belt head and tail section identification device (224) is arranged on the machine table (1), is electrically connected to the control device (5), and is used for identifying the head and tail blank sections of the material belt (900) and returning the identification information to the control device (5).

5. A tray and tape converting apparatus according to claim 4, wherein one side of the feeding unit (21) is provided with a material number identifying device (212), a first driving unit (213) is arranged below the feeding unit (21), the first driving unit (213) is used for driving the first tray (901) in the material cavity (211) to ascend or descend, and the material number identifying device (212) faces to the ascending path of the first tray (901).

6. The tray and strip switching device of claim 4, wherein one side of the receiving unit (22) is provided with a strip leading and trailing section identification device (224), and the strip leading and trailing section identification device (224) faces the strip conveying track (20).

7. Changing apparatus for trays and tapes according to any of the claims 1 to 6, wherein a second drive unit (32) is arranged below the central turntable (3), said second drive unit (32) being adapted to drive the rotation and/or movement of the central turntable (3).

8. The tray and tape converting apparatus according to claim 7, wherein the converting unit (4) further comprises:

empty charging tray storehouse (41), empty charging tray storehouse (41) set up in the top of first plummer (421), empty charging tray storehouse (41) are used for holding second charging tray (902), first plummer (421) below is provided with third drive unit (43), third drive unit (43) are used for driving rising or falling of first plummer (421).

9. The tray and tape converting apparatus according to claim 8, wherein the converting unit (4) further comprises:

the second bearing table (422) and the first bearing table (421) are arranged on the machine table (1) in parallel, the middle rotating disc (3) is configured to move onto the second bearing table (422) under the control of the control device (5), and the manipulator (423) is movably arranged relative to the second bearing table (422).

10. The tray and tape converting apparatus according to claim 1, wherein the converting unit (4) further comprises a tray taking window (44).