The loader for placing the blank into the carrier

Abstract

The present invention provides a loading machine for placing wafers into a carrier. Through the cooperation of a download plate loading mechanism, a wafer loading mechanism, an upper cover loading mechanism, and a main runner, it can automatically load wafers into the carrier, minimizing manual participation, ensuring the cleanliness of the produced products, improving efficiency, and reducing labor costs.

Description

Technical Field

[0001] The present invention belongs to the technical field of semiconductor processing, and particularly relates to a loading machine for placing wafers into a carrier. Background Art

[0002] In the field of semiconductor processing, the cleaning of wafers (usually referring to substrates of silicon wafers or other semiconductor materials) is a crucial step. This process ensures that the surface of the wafer will not be contaminated during subsequent processing steps such as lithography, etching, chemical vapor deposition (CVD), etc., thus guaranteeing the performance and reliability of semiconductor devices.

[0003] In order to support and fix the wafer and ensure that the wafer will not be mechanically damaged during the cleaning process, it is necessary to fix the wafer in a carrier (composed of a lower carrier plate and an upper cover plate) before cleaning.

[0004] In the prior art, it is necessary to manually assemble the wafer into the carrier, resulting in low efficiency and high cost. Summary of the Invention

[0005] Based on this, in view of the above technical problems, a loading machine for placing wafers into a carrier is provided.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A loading machine for placing wafers into a carrier, wherein the carrier is composed of a lower carrier plate and an upper cover plate, and is characterized by comprising:

[0008] A lower carrier plate loading mechanism for placing the lower carrier plate on the main flow channel;

[0009] A wafer loading mechanism for placing the wafer on the lower carrier plate located at the wafer placement station;

[0010] An upper cover plate loading mechanism for covering the upper cover plate on the lower carrier plate located at the covering station;

[0011] A main flow channel for picking up the lower carrier plate from the lower carrier plate loading mechanism and sequentially transporting the lower carrier plate to the wafer placement station and the covering station.

[0012] Through the cooperation of the lower carrier plate loading mechanism, the wafer loading mechanism, the upper cover plate loading mechanism and the main flow channel, the present invention can automatically load the wafer into the carrier, maximally reducing manual participation, ensuring the cleanliness of the produced products, improving efficiency, and reducing labor costs. Brief Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the present invention;

[0014] Figure 2Schematic structural diagram of the loading mechanism for the download board of the present invention;

[0015] Figure 3 Schematic structural diagram of the positioning unit of the present invention;

[0016] Figure 4 is Figure 2 rear view structural diagram of;

[0017] Figure 5 Schematic structural diagram of the first bin of the present invention;

[0018] Figure 6 Schematic three - dimensional structural diagram of the material cart of the present invention;

[0019] Figure 7 Schematic front - view structural diagram of the material cart of the present invention;

[0020] Figure 8 Schematic structural diagram of the edge guard of the material cart of the present invention;

[0021] Figure 9 Schematic structural diagram of the first vacuum suction cup of the present invention;

[0022] Figure 10 Schematic structural diagram of the third bin of the sheet loading mechanism of the present invention;

[0023] Figure 11 Schematic structural diagram of the second and third vacuum suction cups of the sheet loading mechanism of the present invention;

[0024] Figure 12 Schematic structural diagram of the main runner of the present invention. Detailed implementation manners

[0025] The following will describe the implementation manners of the present invention with reference to the accompanying drawings of the specification. It should be noted that the implementation manners involved in this specification are not exhaustive and do not represent the only implementation manner of the present invention. The following corresponding embodiments are only for clearly explaining the inventive content of the present invention and do not limit its implementation manners. For those of ordinary skill in the art, based on the description of this embodiment, different forms of changes and modifications can be made, and any obvious changes or variations that belong to the technical concept and inventive content of the present invention are also within the protection scope of the present invention.

[0026] As Figure 1 shown, this embodiment provides a loading machine for placing sheets into a carrier, including a machine table 1100, a download board loading mechanism 1200, a sheet loading mechanism 1300, an upper cover loading mechanism 1400, and a main runner 1500.

[0027] The download board loading mechanism 1200, the sheet loading mechanism 1300, the upper cover loading mechanism 1400, and the main runner 1500 are all arranged on the machine table 1100. The download board loading mechanism 1200, the sheet loading mechanism 1300, and the upper cover loading mechanism 1400 are arranged in sequence from left to right, and the main runner 1500 is arranged on the front side of the download board loading mechanism 1200, the sheet loading mechanism 1300, and the upper cover loading mechanism 1400. The left and right parts of the machine table 1100 respectively have notches from back to front, which are respectively used to arrange the download board loading mechanism 1200 and the upper cover loading mechanism 1400.

[0028] Among them, the download board loading mechanism 1200 is used to place the download board of the carrier on the main runner 1500. The sheet loading mechanism 1300 is used to place the sheet on the download board at the sheet placement station located on the main runner 1500. The upper cover loading mechanism 1400 is used to cover the upper cover plate on the download board at the covering station located on the main runner 1500. The main runner 1500 is used to pick up the download board from the download board loading mechanism 1200 and sequentially convey the download board to the sheet placement station and the covering station.

[0029] As Figure 1 and 2 shown, the download board loading mechanism 1200 includes a first bin 1210, a first vacuum chuck 1220, a positioning unit 1230, a first runner 1240, and a trolley 1250.

[0030] The first runner 1240 and the first bin 1210 are arranged in the notch from back to front.

[0031] As Figure 1 , Figure 2 and Figure 5 shown, the first bin 1210 includes a first bottom tray 1211, a first lifting unit 1212, a stopper 1213, a front-back horizontal telescopic unit 1214, a plurality of restraint columns 1215, and an alignment unit 1216.

[0032] The first bottom tray 1211 is in the form of a runner, which is convenient for receiving materials from the first runner 1240. It is composed of a plurality of rollers, belts, and motors to form a conveyor belt, and can feed horizontally in the front-back direction. Since the conveyor belt is a conventional technology, its specific structure will not be elaborated here.

[0033] As Figure 2 and Figure 5 shown, the first bottom tray 1211 is fixed on the transmission frame 1211a. The first lifting unit 1212 is composed of a lifting module 1212a driven by two left and right motors, and the sliders of both are fixed to the transmission frame 1211a.

[0034] The first bottom tray 1211 picks up and supports multiple stacked download plates from the first runner 1240 at the initial position, and rises under the drive of the first lifting unit 1212, so that the download plate at the top is lifted to the first discharging station.

[0035] After the first bottom tray 1211 picks up multiple download plates at the initial position, it is blocked by the stopper 1213 located on its front side. In order to avoid damage caused by friction between the download plate and the stopper 1213 when the download plate rises, the stopper 1213 is connected to the front and rear horizontal telescopic unit 1214. Refer to Figure 2 and Figure 5 , before the download plate rises, the front and rear horizontal telescopic unit 1214 drives the stopper 1213 to leave the position in contact with the download plate.

[0036] As Figure 5 shown, multiple restraint columns 1215 are respectively arranged around the first bottom tray 1211. If the download plates on the first bottom tray 1211 deviate greatly in position, they can be aligned to a certain extent by the multiple restraint columns 1215 during the rising process.

[0037] As Figure 1 shown, the alignment unit 1216 is used to align the download plates located at the first discharging station. It is composed of multiple alignment blocks 1216a driven by cylinders and a pair of photoelectric sensors. The multiple alignment blocks 1216a are distributed around the first discharging station. When the photoelectric sensors detect the download plates at the first discharging station, the multiple alignment blocks 1216a align the download plates to ensure that the first vacuum suction cup 1220 can suck the download plates.

[0038] The first vacuum suction cup 1220 is used to suck the download plates from the above-mentioned first discharging station, move to the first feeding station, and place the download plates on the main runner 1500. As Figure 9 shown, it is driven by the first moving unit 1260 to move between the first discharging station and the first feeding station.

[0039] As Figure 9 shown, the first vacuum suction cup 1220 includes a suction cup body 1221 and two pairs of supporting claws 1222.

[0040] The suction cup body 1221 includes a vacuum plate 1221a, multiple vacuum extraction joints 1221b, and multiple vacuum suction heads 1221c. The vacuum plate 1221a has a vacuum extraction cavity. The multiple vacuum extraction joints 1221b are arranged on the upper surface of the vacuum plate 1221a and communicate with the vacuum extraction cavity. The multiple vacuum suction heads 1221c are evenly distributed on the lower surface of the vacuum plate 1221a and communicate with the vacuum extraction cavity.

[0041] Each pair of supporting claws 1222 can approach each other horizontally, so as to exactly hold the lower side of the download board at two symmetric edges under the suction cup body 1221. In this way, on the one hand, when the first vacuum suction cup 1220 sucks the download board from the first discharging station, the supporting claws 1222 can simultaneously extend into the space between the upper and lower download boards, facilitating the separation of the download boards. On the other hand, during the movement of the first vacuum suction cup 1220 after obtaining the download board, the supporting claws 1222 also prevent the problem of the download board falling due to vacuum failure.

[0042] Each pair of supporting claws 1222 is respectively driven by two horizontal telescopic units (such as cylinders, not shown in the figure), and the horizontal telescopic units are fixed on the upper surface of the suction cup body 1221.

[0043] As Figure 9 shown, the first moving unit 1260 is composed of a linear module 1261 in the front-rear direction and a linear module 1262 in the up-down direction. An installation frame is arranged on the slider of the linear module 1261, the linear module 1262 is fixed on the installation frame, the first vacuum suction cup 1220 is fixed on the slider of the linear module 1262, the vacuum generating device is fixed on the installation frame and is connected to the vacuum pumping joint 1221b through a pipeline.

[0044] The positioning unit 1230 is used to position the trolley 1250 pushed into the notch of the machine table 1100 to the locking position. It includes a pair of positioning components, and the pair of positioning components are arranged symmetrically left and right for positioning the trolley 1250 on both the left and right sides.

[0045] Figure 2 The positioning component on the right side in the positioning unit 1230 is shown, which includes a support plate 1231, a first pulley 1232 and a second pulley 1233. See Figure 3 .

[0046] The support plate 1231 is arranged vertically. On the left side surface opposite to the right side of the trolley 1250, there are a slide bar 1231a and a mounting plate 1231b extending horizontally towards the trolley 1250. The number of the slide bars 1231a is two, and they are arranged vertically and located in front of the mounting plate 1231b. The two slide bars 1231a are fixed on the support plate 1231 through a fixing plate 1231c.

[0047] The first pulley 1232 can rotate horizontally and is used to cooperate with the positioning groove 1252c to realize the positioning of the trolley 1250. The upper and lower ends of its rotating shaft 1232a are respectively sleeved on the two slide bars 1231a in a left-right sliding manner. There are two springs 1234 respectively sleeved on the two slide bars 1231a between the rotating shaft 1232a and the fixing plate 1231c. Figure 3 The upper slide bar 1231a and the spring 1234 are shown.

[0048] The second pulleys 1233 can rotate horizontally. There are two of them and they are used for guiding when the trolley 1250 is pushed into the locking position. The two second pulleys 1233 are arranged front and back, and the rotation axis of each second pulley 1233 is provided on the mounting plate 1231b.

[0049] The first flow channel 1240 uses a conveyor belt and can feed horizontally in the front and back directions. Its structure is similar to that of the first bottom support 1211 and will not be elaborated here. As Figure 2 and Figure 4 shown, it is driven by the second lifting unit 1241, rises from the initial position to dock with the first bottom support 1211, so as to lift the download plate on the trolley 1250 located at the locking position upward and horizontally convey it to the first bottom support 1211. The second lifting unit 1241 can use a linear motor.

[0050] As Figure 6 shown, the trolley 1250 includes a bottom plate 1251, a back plate 1252, a second bin 1253 and a receiving part 1254.

[0051] The rear side of the bottom plate 1251 is connected to the lower side of the back plate 1252. The lower surface of the bottom plate 1251 is provided with a brake 1251a and a plurality of pulleys 1251b. The upper part of the rear surface of the back plate 1252 is provided with a trolley handle 1252a. The left and right sides of the middle surface of the front side of the back plate 1252 are respectively provided with cross beams 1252b extending horizontally forward.

[0052] As Figure 6 shown, the outer side of the cross beam 1252b is provided with a positioning groove 1252c corresponding to the first pulley 1232 of the positioning unit 1230.

[0053] The second bin 1253 is fixed on the cross beam 1252b. The space between the second bin 1253 and the bottom plate 1251 forms the above-mentioned receiving part 1254. When the trolley 1250 is located at the locking position, the second bin 1253 is exactly above the first flow channel 1240. At the same time, the receiving part 1254 exactly receives the first flow channel 1240 below the second bin 1253. See Figure 2 .

[0054] The second bin 1253 is used for stacking and placing download plates up and down. As Figure 6 shown, it is composed of left and right side plates 1253a and a lower side plate, so its front side and upper side are both open openings, and the lower side plate has an opening for the first flow channel 1240 to pass through up and down.

[0055] In order to prevent the download plate from falling out of the front open opening of the second bin 1253 when pushing the trolley, as Figure 7 shown, a baffle 1255 is provided at the left edge of the front open opening of the second bin 1253. As Figure 6and Figure 8 As shown, the retaining edge 1255 includes a connecting strip 1255a and a baffle 1255b.

[0056] As Figure 6 shown, the connecting strip 1255a is connected to the outside of the left side plate 1253a of the second bin 1253. As Figure 8 shown, on the upper and lower sides of the side of the connecting strip 1255a facing the baffle 1255b (i.e., the front side), left and right horizontal slide rails 1255a-1 are respectively provided. Between the two left and right horizontal slide rails 1255a-1, two spring seats 1255a-2 are provided. Between the slide rail 1255a-1 and the spring seat 1255a-2, a limit pin 1255a-3 and a retaining convex 1255a-4 are provided.

[0057] The baffle 1255b is used to block the front opening of the second bin 1253 in the initial position. As Figure 8 shown, on its rear side, a slide seat 1255b-1 corresponding to the slide rail 1255a-1, a spring seat (not shown in the figure) opposite to the spring seat 1255a-2, a limit hole 1255b-2 corresponding to the limit pin 1255a-3, and a groove 1255b-3 corresponding to the retaining convex 1255a-4 are provided.

[0058] Among them, the slide seat 1255b-1 is slidably arranged on the slide rail 1255a-1 to realize the left and right horizontal sliding fit between the baffle 1255b and the front side of the connecting strip 1255a. A return spring 1255c is arranged between the two opposite spring seats on the left and right. The limit pin 1255a-3 passes through the limit hole 1255b-2 to play a limiting role, and the retaining convex 1255a-4 and the groove 1255b-3 also play a limiting role.

[0059] As Figure 8 shown, the baffle 1255b has a claw opening 1255b-4. Correspondingly, the download plate loading mechanism 1200 has a retaining edge opening unit 1270. The retaining edge opening unit 1270 includes a claw part 1271, a left and right horizontal telescopic unit 1272, and a support frame 1273. See Figure 7 .

[0060] The claw part 1271 just extends into the claw opening 1255b-4 when the material truck is pushed into the locking position. Driven by the left and right horizontal telescopic unit 1272 (such as a cylinder), the claw part 1271 drives the baffle 1255b to slide horizontally to the open position.

[0061] Among them, the left and right horizontal telescopic unit 1272 is fixed on the support frame 1273. A sensor 1273a for detecting whether the baffle 1255b moves to the open position is also provided on the support frame 1273.

[0062] After the download plate in the second bin 1253 of the skip car 1250 is conveyed by the first runner 1240 to the first bottom support 1211 of the first bin 1210, the left and right horizontal telescoping units 1272 of the edge opening unit 1270 stop working, and under the action of the return spring 1255c, the baffle 1255b returns from the open position to the initial position.

[0063] As Figure 6 shown, the locking unit 1280 is used to lock the skip car 1250 positioned by the positioning unit 1230 at the locking position. Exemplarily, it includes a lock tongue 1281 and a lock body 1282. The lock tongue 1281 is fixed to the front end face of the bottom plate 1251 of the skip car 1250, and the lock body 1282 is fixed on the support frame 1273. When the skip car 1250 is positioned by the positioning unit 1230 to the locking position, the lock tongue 1281 just extends into the lock hole of the lock body 1282 to realize the locking of the skip car 1250.

[0064] The working process of the download plate loading mechanism 1200 is as follows:

[0065] 1. Manually push the skip car 1250 carrying the stacked download plates into the notch on the left side of the machine table 1100. The skip car 1250 is positioned by the positioning unit 1230 to the locking position and locked by the locking unit 1280. After locking the skip car 1250, the locking unit 1280 will output a signal.

[0066] 2. According to the signal output by the locking unit 1280, it can be detected that the skip car 1250 has been locked. At this time, the edge 1255 opens, and at the same time, the first runner 1240 rises and docks with the first bottom support 1211 of the first bin 1210, so that all the download plates on the skip car 1250 are lifted and conveyed to the first bottom support 1211.

[0067] After all the download plates on the skip car 1250 are conveyed to the first bottom support 1211, the locking unit 1280 can be remotely controlled through the touch screen to unlock the skip car 1250.

[0068] 3. The first bottom support 1211 successively lifts the download plates to the first discharging station, and the aligning unit 1216 aligns the download plates located at the first discharging station.

[0069] 4. The first vacuum chuck 1220 sucks the download plate from the first discharging station of the first bin 1210 and places it on the main runner 1500.

[0070] It can be understood that the download board can be conveniently sent to the first bin 1210 through the skip car 1250 and the first runner 1240. In a possible implementation, the download board can also be directly stacked up and down on the first bottom tray 1211 of the first bin 1210 manually. In this implementation, the skip car 1250, the positioning unit 1230, and the first runner 1240 can all be omitted.

[0071] The number of the wafer loading mechanisms 1300 is two. The two wafer loading mechanisms 1300 are arranged in left - right mirror symmetry on the frame 1120 in the middle of the machine table 1100. Refer to Figure 11 , correspondingly, the main runner 1500 has two wafer placement stations arranged front - to - back. The two wafer loading mechanisms 1300 respectively correspond to one wafer placement station and are used to place wafers on the download board located at the wafer placement station.

[0072] It can be understood that the purpose of setting two wafer loading mechanisms 1300 is to improve the loading efficiency. In one scenario, the download board can only accommodate one wafer. The two wafer loading mechanisms 1300 can simultaneously place two wafers on the download boards located at the two wafer placement stations respectively. In another scenario, the download board can accommodate two wafers, and the two wafer loading mechanisms 1300 sequentially place two wafers on the same download board.

[0073] Specifically, as Figure 1 shown, the wafer loading mechanism 1300 includes a third bin 1310, a second vacuum chuck 1320, a fourth bin 1330, and a third vacuum chuck 1340.

[0074] The third bin 1310 is used to stack wafers up and down, and the wafers are separated by separator paper.

[0075] As Figure 10 shown, the third bin 1310 has a second bottom tray 1311. The second bottom tray 1311 is a plate body, which is driven by a third lifting unit 1312 to lift the wafers carried thereon, so that the wafers at the top are lifted to the second discharging station.

[0076] The third lifting unit 1312 is composed of a lead screw 1312a and a motor 1312b. The lead screw 1312a is vertically arranged, and its nut seat is fixed to the second bottom tray 1311. The lower end of the lead screw 1312a has a transmission wheel, the output shaft of the motor 1312b faces downward, and there is also a transmission wheel on the output shaft. Transmission belts are arranged on the two transmission wheels. The motor 1312b makes the lead screw 1312a work through the transmission wheels, thereby realizing the lifting of the second bottom tray 1311.

[0077] Two retaining posts 1313 are respectively arranged at the front, rear, left and right of the second bottom support 1311. The size of the material sheet is restricted by the retaining posts 1313, and they play a guiding role when the second bottom support 1311 lifts the material. Among them, the retaining posts 1313 on the left and right sides are fixed on the platen 1110 of the machine table 1100, and the two retaining posts 1313 at the rear side and the two retaining posts 1313 at the front side are respectively fixed on two synchronizing plates 1314 in the left-right direction. The two synchronizing plates 1314 are arranged front and rear, and both ends of each synchronizing plate 1314 are respectively slidably arranged on two tracks 1111 in the front-rear direction. The two tracks 1111 are fixed on the platen 1110 at left and right intervals.

[0078] A bidirectional lead screw 1112 is arranged at the position on the right side of the third material bin 1310 of the platen 1110. The screw shaft of the bidirectional lead screw 1112 has two sections of opposite threads. The nut seats on the two sections of opposite threads are respectively fixed to the synchronizing plate 1314 through a transmission plate 1113. One end of the screw shaft is connected to the motor through a transmission wheel and a transmission belt. Under the drive of the motor, the width of the third material bin 1310 is adjusted to adapt to material sheets of different sizes.

[0079] The third material bin 1310 is also provided with an aligning unit around the second discharging station. Refer to the aligning unit 1116 in the loading mechanism 1200 of the downloading plate, which will not be elaborated here. In addition, since the gap between the material sheet and the separator paper is very small, in order to facilitate the separation of adjacent material sheets and separator papers when the second vacuum chuck 1320 sucks the material sheet from the second discharging station or the third vacuum chuck 1340 sucks the separator paper from the second discharging station, the third material bin 1310 also has air blowing heads 1315 distributed oppositely left and right, which are used to blow air into the gap between the material sheet and the separator paper located at the top from the left and right sides. When the photoelectric sensor of the aligning unit detects the material sheet or the separator paper, the air blowing heads 1315 work.

[0080] The second vacuum chuck 1320 is used to suck the material sheet from the second discharging station of the third material bin 1310 and move it to the second discharging station, and place the material sheet on the downloading plate at the material sheet placing station located on the main flow channel 1500. The second vacuum chuck 1320 is driven by the second moving unit 1350 to move between the second discharging station and the second discharging station. Refer to Figure 11 。

[0081] The second moving unit 1350 is composed of a linear module 1351 in the front-rear direction and two linear modules 1352 in the up-down direction. It is a conventional structure and is similar to the first moving unit 1260, which will not be specifically elaborated here.

[0082] The two linear modules 1352 are respectively used to arrange the second vacuum chuck 1320 and the third vacuum chuck 1340.

[0083] An installation bracket for mounting a vacuum suction cup is provided on the slider of the linear module 1352. The installation bracket and the vacuum suction cup are connected and fixed through a quick-release structure, which facilitates the installation of vacuum suction cups of different specifications, so as to suck workpieces of different specifications.

[0084] The fourth bin 1330 has the same structure as the third bin 1310 and is used for stacking separator papers vertically. The pallet of the fourth bin 1330 has the opposite working logic to the second bottom pallet 1311 of the third bin 1310. It descends layer by layer under the drive of the lifting unit, so that the third vacuum suction cup 1340 places the separator paper at the feeding station of the fourth bin 1330 each time, and then performs alignment.

[0085] The structures of the third vacuum suction cup 1340 and the second vacuum suction cup 1320 are used to suck the separator paper from the second discharging station of the third bin 1310 and move it to the third discharging station, and place the separator paper at the feeding station of the fourth bin 1330.

[0086] A linear module 1360 in the left-right direction is provided on the installation bracket for mounting the third vacuum suction cup 1340. The linear module 1360 drives the code scanning head 1361 to move left and right, and can read the code located on the left or right side of the workpiece.

[0087] When the workpiece loading mechanism 1300 is working, the second vacuum suction cup 1320 and the third vacuum suction cup 1340 act alternately. The second vacuum suction cup 1320 sucks the workpiece from the second discharging station of the third bin 1310 and places the workpiece on the downloading plate at the workpiece placing station located on the main runner 1500. The third vacuum suction cup 1340 sucks the separator paper from the second discharging station of the third bin 1310 and places the separator paper at the feeding station of the fourth bin 1330.

[0088] For the scenario where no separator paper is provided between workpieces, the fourth bin 1330 and the third vacuum suction cup 1340 can be not used, so that the workpiece loading mechanism 1300 can adapt to different products (with or without separator paper).

[0089] The upper cover loading mechanism 1400 is used to cover the upper cover plate on the downloading plate at the covering station located on the main runner 1500. Its structure and working process are the same as those of the downloading plate loading mechanism 1200, and the only difference is the loading objects (the downloading plate and the upper cover), so it will not be specifically described here.

[0090] Such as Figure 12As shown in the figure, the main runner 1500 includes a first main runner 1510, a second main runner 1520, and a third main runner 1530 for discharging materials from the download plate loading mechanism 1200, the sheet loading mechanism 1300, and the upper cover loading mechanism 1400 respectively. The first main runner 1510, the second main runner 1520, and the third main runner 1530 are horizontally butted in sequence, and the number of the second main runners 1520 is two.

[0091] Each runner is composed of three conveying belts arranged at intervals left and right. The three conveying belts work synchronously under the drive of a motor. This structure is a conventional technology and will not be specifically described here.

[0092] Among them, two first blocking blocks 1511 driven by a cylinder to lift are provided on the lower side of the front part of the first main runner 1510. Two second blocking blocks 1521 driven by a cylinder to lift are provided on the lower side of the front part of the second main runner 1520, which are used to position the download plate at the sheet placement station. Two alignment blocks 1521 driven by a cylinder to lift are provided on the lower side of the rear part of the second main runner 1520. When the alignment blocks 1521 rise to the working position, they are opposite to the second blocking blocks 1521. They move forward under the drive of an alignment cylinder to cooperate with the second blocking blocks 1521 to align the download plate. Alignment blocks 1521 are also provided on the left side of the second main runner 1520. They move to the right under the drive of an alignment cylinder to cooperate with the right side edge of the second main runner 1520 to align the download plate. Two third blocking blocks 1531 driven by a cylinder to lift are provided on the lower side of the middle part of the third main runner 1530, which are used to position the download plate at the covering station. Alignment blocks are also provided on the rear part and the left side of the third main runner 1530. For details, reference can be made to the second main runner 1520.

[0093] As can be seen from the above, the loading machine for placing sheets into the carrier provided by the embodiment of the present application can automatically load the sheets into the carrier through the cooperation of the download plate loading mechanism, the sheet loading mechanism, the upper cover loading mechanism, and the main runner, maximizing the reduction of manual participation, ensuring the cleanliness of the produced products, improving the efficiency, and reducing the labor cost.

[0094] In addition, it can be compatible with products of multiple sizes. With the cooperation of a material cart, it is convenient to place the download plate and the upper cover.

[0095] Obviously, those of ordinary skill in the art in this technical field should recognize that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. As long as within the scope of the essential spirit of the present invention, changes and modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. A loading machine for placing a sheet into a carrier, wherein the carrier is composed of a lower plate and an upper cover plate, characterized in that: include: A download plate feeding mechanism for placing the download plate on the main channel, the download plate feeding mechanism comprising: A first material bin for stacking materials up and down, the first material bin having a first bottom bracket for loading materials and lifting the top loading plate to the first unloading station, the first bottom bracket being driven to rise and fall by a first lifting unit; A first vacuum suction cup for sucking the download plate from the first unloading station and moving it to the first unloading station to place the download plate on the main flow channel, wherein the first vacuum suction cup is driven by a first moving unit to move between the first unloading station and the first unloading station; A positioning unit for positioning the trolley at a locking position and a locking unit for locking the trolley at the locking position; Used to rise from an initial position to dock with the first bottom bracket to lift the download plate on the trolley located in the locking position upward and transport it horizontally to the first flow channel on the first bottom bracket, and the first flow channel is driven to rise and fall by the second lifting unit; A material cart, wherein the material cart has a second material bin located just above the first flow channel when the material cart is in the locking position, and a receiving portion for receiving the first flow channel just below the second material bin, the second material bin is used for stacking the download plates up and down, and the front side and the upper side of the second material bin are both open, and the bottom of the second material bin has an opening for the first flow channel to pass up and down; A sheet loading mechanism for placing the sheet on a download plate located at a sheet placement station; An upper cover feeding mechanism for closing the upper cover plate on the download plate located at the closing station; The main channel is used to receive the download plate from the download plate feeding mechanism and transport the download plate to the sheet placement station and the covering station in sequence.

2. A loading machine for placing a sheet into a carrier according to claim 1, characterized in that: The positioning unit includes a pair of positioning components for positioning the material cart on the left and right sides, the pair of positioning components are arranged symmetrically, the positioning components include a support plate, a first pulley that can rotate horizontally, and a second pulley that can rotate horizontally. The support plate is arranged vertically, and its side opposite to the material cart has a slide bar and a mounting plate extending horizontally toward the material cart, the slide bar is located on the front side of the mounting plate, the rotating shaft of the first pulley is slidably mounted on the slide bar left and right, a spring mounted on the slide bar is provided between the rotating shaft and the support plate, the rotating shaft of the second pulley is provided on the mounting plate, and the left and right sides of the material cart have positioning grooves corresponding to the first pulley.

3. A loading machine for placing a sheet into a carrier according to claim 1, characterized in that: A side guard is provided on one of the left and right edges of the front opening of the second material bin, and the side guard includes a connecting strip and a baffle for blocking the front opening in an initial position, the connecting strip is connected to the outer side of the side plate of the second material bin, the baffle is horizontally slidably matched with the front side surface of the connecting strip, and a return spring arranged in the left and right horizontal directions is provided between the two for allowing the baffle to return from the open position to the initial position, the baffle has a claw opening, and the download plate loading mechanism also includes a side guard opening unit, the side guard opening unit includes a claw portion that just extends into the claw opening when the material cart is in the locking position, and the claw portion is driven by the left and right horizontal telescopic units to move the baffle horizontally to the open position.

4. A loading machine for placing a sheet into a carrier according to claim 1, characterized in that: The first base uses a flow channel with the same conveying direction as the first flow channel, and the download plate feeding mechanism also includes a stopper for stopping the front side of the first base, and the stopper is connected to the front and rear horizontal telescopic units.

5. A loading machine for placing a sheet into a carrier according to claim 1, characterized in that: The first vacuum suction cup includes a suction cup body and at least one pair of claws that can be horizontally approached to each other to hold the download plate at two symmetrical edges on the lower side of the suctioned download plate, and the pair of claws are respectively driven by two horizontal telescopic units, and the two horizontal telescopic units are fixed to the upper surface of the suction cup body.

6. A loading machine for placing a sheet into a carrier according to claim 1, characterized in that: The sheet feeding mechanism comprises: A third silo for stacking materials up and down, the third silo having a second bottom support for loading materials and lifting the materials at the top to the second unloading station, the second bottom support being driven to rise and fall by a third lifting unit; The second vacuum suction cup is used to suck the sheet from the second discharging station and move it to the second discharging station to place the sheet on the download plate located at the sheet placing station. The second vacuum suction cup is driven by the second moving unit to move between the second discharging station and the second discharging station.

7. A loading machine for placing a sheet into a carrier according to any one of claims 1 to 5, characterized in that: The upper cover feeding mechanism has the same structure as the lower plate feeding mechanism.

8. A loading machine for placing a sheet into a carrier according to claim 1, characterized in that: The main channel includes a first main channel, a second main channel and a third main channel for respectively feeding materials from the download plate feeding mechanism, the sheet feeding mechanism and the upper cover feeding mechanism, and the first main channel, the second main channel and the third main channel are horizontally butted in sequence.

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