An automatic transmission anti-reverse device and method for a TO series package sheet electroplating line

Abstract

The present invention discloses an anti-reverse device and method for automatic transmission of a TO series packaging sheet electroplating line, wherein the anti-reverse device comprises a material storage body, a material taking mechanism, a conveying mechanism, a sheet fixture, and a processing conveying mechanism. According to the surface structure of the sheet, on the basis of stable stacking, the position of the reversed sheet is adjusted by the anti-reverse device, so that the sheet can be uniformly forward-transmitted, and at the same time, mechanical anti-reverse is used to detect the direction of the sheet during transmission, which can effectively and quickly intercept the reversed sheet to avoid the risk of misdetection or omission, and can effectively solve the problem of product scrapping caused by reverse loading of TO series packaging sheets, and has the advantages of low cost and high reliability of transmission without affecting the speed of the feeder.

Description

Technical Field

[0001] The present invention relates to the technical field of semiconductor power devices, and in particular to an automatic transmission anti-reverse device and method for a TO series packaging sheet electroplating line. Background Art

[0002] Semiconductor power devices, also known as power electronic devices and power electronic devices, refer to electronic devices that can be directly used in the main circuit for processing electric energy to achieve the conversion or control of electric energy. Its functions are mainly divided into power conversion, power amplification, power switching, line protection and rectification. Common power semiconductor discrete devices include diodes, thyristors, IGBTs (insulated gate bipolar transistors), MOSFETs (metal oxide semiconductor field effect transistors), GTOs (gate turn-off thyristors) and IGCTs (integrated gate commutated thyristors). The packaging forms mainly involve TO series, SOT series, SMD series, etc. The application fields of semiconductor power devices are very wide, including but not limited to new energy, data centers, servers and communication power supplies, industrial control automation and consumer electronics. With the rapid development of emerging application fields such as new energy vehicles, charging piles, and photovoltaics, the market demand for semiconductor power devices is also growing continuously.

[0003] Power device wafers are the basic materials for manufacturing semiconductor power devices. Their quality and performance have a crucial impact on the performance of semiconductor devices. The preparation of wafers requires strict process control to ensure that their purity, crystallinity and surface quality meet the requirements. In the production process of semiconductor power devices, processing and transfer is an important link. It involves transferring the wafer from one process to the next to ensure the continuity and efficiency of the entire production process.

[0004] Among them, the TO (Transistor Outline) series package is one of the earliest discrete device packages, usually used for transistors or triodes. This package is characterized by a regular appearance, simple structure, and easy welding, so it is widely used. At present, the commonly used specifications of TO packages are TO-92, TO-126, TO-220, etc. TO series products (the material structure is as shown in the attached manual) Figure 1-2 (As shown in the figure) In the packaging process, special-shaped materials are used, and the pins and heat sinks are not in the same plane, with a certain height difference. In this case, the product can only clamp the pins, not the heat sinks, during the electroplating line material processing. Therefore, screening and identification are required during the material loading process, and the pins are required to be kept on the same side. If the sheet is reversed during the transmission process, subsequent processing errors will cause scrapping, and the processing equipment will also be stuck and damaged. Since the sheet is usually continuously transmitted, the screening and identification of the sheet has a greater physical burden, and there is also a certain probability of reverse transmission. Summary of the invention

[0005] In view of the above-mentioned problems, the present invention aims to provide an anti-reverse device and method for the automatic transmission of TO series packaging sheet electroplating lines. The anti-reverse device is used to adjust the position of the inverted sheet so that the sheets can be uniformly transmitted in the forward direction. At the same time, mechanical anti-reverse is used to detect and intercept the direction of the sheet during transmission, avoiding the risk of misdetection or omission, and can effectively solve the problem of product scrapping caused by the reverse direction of the TO series packaging sheet.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows: an automatic transmission anti-reverse device for a TO series package sheet electroplating line, comprising:

[0007] A material storage body, used for storing the processed and formed sheets;

[0008] A material taking mechanism, arranged on the top side of the material storage body, is used to take out a single material sheet in the material storage body and adjust the material sheet to a correct conveying orientation;

[0009] A conveying mechanism, arranged at one side of the material storage body, receives and conveys the material sheets taken out by the material taking mechanism;

[0010] A sheet clamp is arranged on one side of the conveying direction of the conveying mechanism, and clamps the sheet conveyed by the conveying mechanism and adjusts the orientation of the sheet;

[0011] The processing and conveying mechanism is arranged on one side of the sheet clamp, and clamps the sheet after the sheet clamp adjusts its orientation and conveys it to the electroplating process.

[0012] Preferably, the conveying anti-reverse device further comprises an anti-reverse detection mechanism, which is arranged at the front side of the sheet clamp and blocks the sheet placed in the reverse direction.

[0013] Preferably, the anti-reverse detection mechanism includes an anti-reverse limit block, which is arranged at the top of one side of the conveying mechanism. The anti-reverse limit block contacts the reversely placed material sheet and blocks the conveyance of the material sheet, and the anti-reverse limit block does not contact and block the forwardly placed material sheet.

[0014] Preferably, the conveying mechanism is provided with a clamping gap for partially suspending the web at a position corresponding to the web clamp.

[0015] Preferably, the sheet clamp comprises a rotating body arranged to rotate vertically, and a clamping claw which can be embedded in the clamping gap and clamp the sheet is arranged on the bottom surface of the rotating body.

[0016] A method for automatically conveying and preventing reverse movement of a TO series package sheet electroplating line, comprising the following steps:

[0017] S1. Sheet storage

[0018] Placing a number of processed and formed sheets into a material storage body;

[0019] S2. Retrieving materials

[0020] The material taking mechanism moves to the top of the sheet in the material storage body, takes up a single sheet and transfers it to the top side of the conveying mechanism, and places the taken sheet on the conveying mechanism, and the material taking mechanism resets to take up the next sheet;

[0021] S3, sheet conveying

[0022] The conveying mechanism conveys the web placed thereon to the web clamp;

[0023] S4, sheet clamping

[0024] The sheet clamp clamps the sheet on the conveying mechanism and adjusts the orientation of the sheet;

[0025] S5, processing and transmission

[0026] The processing and conveying mechanism clamps the sheet after the sheet clamp adjusts its orientation and conveys it for processing, and at the same time the sheet clamp is reset to clamp the next sheet to be conveyed.

[0027] The beneficial effects of the present invention are as follows: according to the surface structure of the sheet, on the basis of stable stacking, the position of the inverted sheet is adjusted by the anti-reverse device, so that the sheet can be uniformly conveyed in the forward direction, and at the same time, mechanical anti-reverse is used to detect the direction of the sheet during conveyance, which can effectively and quickly intercept the inverted product to avoid the risk of misdetection or omission, and can effectively solve the problem of product scrapping caused by the reverse loading of the sheet in the TO series packaging form, and has the advantages of low cost and high reliability without affecting the speed of the loader. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a front (front) structural diagram of the material sheet of the present invention (the right side is the left view).

[0029] Figure 2 It is a diagrammatic view of the reverse (open) structure of the material sheet of the present invention (the right side is the left view).

[0030] Figure 3 The diagram shows the sheet of the present invention stacked upside down (the sheet on the upper side is stacked upside down, and the sheet on the lower side is stacked upside down).

[0031] Figure 4 It is a diagrammatic representation of the overall structure of the automatic transmission anti-reverse device of the present invention.

[0032] Figure 5 For the present invention Figure 4 Enlarged view of the structure at point A in the middle.

[0033] Figure 6 For the present invention Figure 4 Enlarged view of the structure at point B in the middle.

[0034] Figure 7 This is a top view of the material sheets of the present invention stacked in a material storage body.

[0035] Figure 8 For the present invention Figure 7 Side view.

[0036] Fig. 9 The present invention is a diagram showing the process of sucking and transferring the blanks placed in the storage body to the conveying roller.

[0037] Fig.10 The figure shows that the material sheets placed upside down in the material storage body are transferred to the flap in the present invention.

[0038] Fig.11 The flip plate of the present invention flips the reversed sheet to the forward direction and places it on the conveying roller.

[0039] Fig.12 It is a structural diagram of the inlay strip of the present invention.

[0040] Fig.13 This is a structural diagram of the anti-reverse limit block of the present invention (the left side is a stereoscopic diagram, and the right side is a front view).

[0041] Fig.14 It is a diagram showing the reversed sheet of the present invention being transported on a transport roller.

[0042] Fig.15 This is a diagram showing that the reversed sheet of the present invention is blocked by the anti-reverse limit block during the conveying process on the conveying roller.

[0043] Fig.16 This is a diagram showing that the anti-reverse limit block of the present invention does not contact and block the upright-placed sheet.

[0044] Fig.17 It is a diagram showing the position of the light band switch of the present invention.

[0045] Fig.18 It is a diagram showing the position of the clamping gap of the present invention.

[0046] Fig.19 This is a diagram showing the clamping jaws of the present invention ready to clamp a sheet.

[0047] Fig. 20 This is a diagram showing the clamping jaws of the present invention clamping a sheet.

[0048] Fig.21 This is a diagram showing the rotating body of the present invention rotating the sheet clamped by the clamping claws to a vertical state.

[0049] Fig. 22 The figure shows that the sheet of the present invention is suspended on a steel belt.

[0050] In the figure: 1-material; 2-storage body; 3-suction cup; 4-driving screw; 5-flap; 6-transmission roller; 6a-gripping gap; 7-rotating body; 8-gripping jaw; 9-cylinder rod; 10-steel belt; 11-inserting strip; 12-anti-reverse limit block; 13-photoelectric switch; 14-material baffle; 15-material sensor. DETAILED DESCRIPTION

[0051] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0052] Refer to the attached Figures 1 to 22 The device for automatically conveying and preventing reverse movement of a TO series package sheet electroplating line is shown, comprising:

[0053] The storage body 2 has a structure as follows Figure 7-8 As shown, it is a trough structure with an open opening, which is used to store the processed and formed tablets 1. The structure of the tablet 1 for TO series packaging disclosed in this application is as follows Figure 1-2 As shown in the figure, the frame thickness is 0.5mm, the product pin thickness is 0.5mm; the plastic package thickness is 0.45mm; the product carrier thickness is 0.95mm, and there is a 0.45mm height difference between the product pin and the carrier. To prevent the sheet 1 from tipping over to one side due to the height difference of the surface structure when the sheet 1 is stacked and stored, thereby affecting the accurate grasping of the material picking mechanism, as shown in the figure, Figure 3 As shown, the material sheets 1 are stacked up left and right due to the height difference of their surfaces, so that the stacked material sheets 1 are in a stable storage state.

[0054] The material taking mechanism is arranged on the top side of the material storage body 2, and is used to mechanically take out a single material sheet 1 in the material storage body 2 and separate it from the material storage body 2, and adjust the material sheet 1 to the correct conveying orientation. The specific structure of the material taking mechanism is as follows Figure 4-6 As shown, it includes a driving mechanism composed of horizontal and vertical components, and a suction cup 3 is arranged on the bottom surface of the driving mechanism. When the material sheet 1 is sucked, the driving mechanism is actuated to move the suction cup 3 to the top side of the material sheet 1 at the top of the storage body 2, and after the suction cup 3 moves downward and contacts the material sheet 1, the material sheet 1 is sucked, and the material sheet 1 is transferred to the top of the conveying mechanism after being sucked.

[0055] Since the sheets 1 in the storage body 2 are stacked vertically, after the suction cup 3 absorbs a single sheet 1, the surface height of the unabsorbed sheet 1 will drop. Therefore, in order to enable the suction cup 3 to smoothly absorb the sheet 1 on the lower side, Figure 8As shown, a driving screw 4 is provided at the bottom of the storage body 2. After the suction cup 3 sucks the material sheet 1 on the upper side of the storage body 2, the driving screw 4 will drive the storage body 2 to move up by the height of the material sheet 1, so that the suction cup 3 can smoothly suck the material sheet 1 on the lower side of the storage body 2.

[0056] In the above-mentioned placement mode where the front and back sides of the sheet 1 are stacked due to the surface structure of the sheet 1, when the sheet 1 is sucked by the material taking mechanism, the sucked sheet 1 is sucked at intervals of the front side and the back side, and the front side can be directly transferred to the conveying mechanism for conveying, while the sheet 1 sucked by the back side cannot be accurately processed after conveying. Therefore, in order to solve this problem, Fig. 9 As shown, a flap 5 is provided on the other side of the conveying mechanism opposite to the material storage body 2. When the material sheet 1 sucked by the material taking mechanism is on the reverse side, as shown in FIG. Fig.10 As shown, the suction cup 3 of the material taking mechanism directly transfers the material sheet 1 to the flap 5, and then the flap 5 is turned over so that the material sheet 1 placed on the reverse side can be placed on the front side and directly fall into the conveying mechanism, as shown in FIG. Fig.11 As shown, the direction of the sheet 1 is adjusted, and then the sheet 1 is conveyed by the conveying mechanism and subsequently accurately processed.

[0057] Since the sheets 1 in the storage body 2 are regularly stacked up front and back, the material picking mechanism is programmed to directly suck up the sheet 1 placed upright and transfer it to the conveying mechanism for transmission, while the sheet 1 sucked from the reverse side is sucked up and transferred to the flap 5 for flipping and then falls onto the conveying mechanism for transmission, thereby avoiding the problem of processing errors of the sheet 1 placed on the reverse side.

[0058] The conveying mechanism is arranged on one side of the storage body 2, and receives and conveys the sheet 1 mechanically taken out by the taking mechanism. The specific structure is as follows: Fig.17 As shown, it is composed of a plurality of conveying rollers 6, which receive the material sheet 1 transferred by the material taking mechanism through the material sheet 1 turned over by the flap 5 and then convey it forward to be clamped by the material clamp.

[0059] like Fig.18 As shown, in order to facilitate the sheet clamp to clamp the conveyed sheet 1, the conveying mechanism is provided with a clamping gap 6a at a position corresponding to the sheet clamp to partially suspend the sheet 1. The clamping gap 6a is formed by the adjacent conveying rollers 6 not being connected, and the sheet 1 can be smoothly clamped and separated from the conveying roller 6 through the clamping gap.

[0060] The sheet clamp is arranged on one side of the conveying direction of the conveying mechanism to clamp the conveyed sheet 1 and adjust the orientation of the sheet 1. Its specific structure is as follows Fig.19 As shown, it includes a vertically rotating rotating body 7, on the bottom surface of which is provided a clamping claw 8 which can be embedded in the clamping gap 6a and clamp the sheet 1 (the clamping claw 8 is moved by the cylinder rod 9 compared to the rotating body 7). Fig.19 As shown, the clamping jaw 8 is a hook structure with one end hinged. When the sheet 1 is clamped, the program drives the clamping jaw 8 to open outward ( Fig.19 The state shown in the figure is to avoid contact with the surface of the sheet 1 during the downward movement, thereby interfering with and squeezing the sheet 1. The rotating body 7 then drives the clamping jaws 8 to move downward, and the clamping jaws 8 are embedded in the clamping gap 6a. The clamping jaws 8 then rotate to clamp the sheet 1 ( Fig. 20 The rotating body 7 then moves upward, causing the sheet 1 to separate from the conveying roller 6. After the sheet 1 separates, the rotating body 7 drives the sheet 1 to rotate to a vertical state ( Fig.21 The position of the sheet 1 is adjusted in this state, in which the sheet 1 can be clamped in the processing and conveying mechanism. Then the clamping jaws 8 and the rotating body 7 are reset to wait for the next sheet 1 to be clamped.

[0061] like Figure 5 As shown, a material sensor 15 is also provided on the clamping jaw 8. When the conveying roller 6 conveys the material 1 to the bottom of the clamping jaw 8, when the material sensor 15 senses the material 1, the clamping jaw 8 performs a clamping action. When the material 1 is not sensed, the clamping jaw 8 does not perform a clamping action, thereby avoiding an empty clamping operation of the clamping jaw 8.

[0062] In order to avoid the problem that the sheet 1 is continuously conveyed on the conveying roller 6 and piled up at the clamping jaw 8, and affects the smooth gripping of the clamping jaw 8, as shown in FIG. Figure 5 As shown, a sheet baffle 14 is also provided on the front side of the clamping jaw 8. When the clamping jaw 8 is gripping the sheet, the sheet baffle 14 rises and is higher than the surface of the conveying roller 6, so as to block the sheet 1 during the conveying process. When the clamping jaw 8 is transferring the gripped sheet 1 to the steel belt 10 and resetting it, the sheet baffle 14 (which is preferably driven to rise and fall by a cylinder and linked with the entire device) moves downward, and the sheet 1 is conveyed on the conveying roller 6 toward the bottom side of the clamping jaw 8, waiting to be gripped.

[0063] The processing and conveying mechanism clamps and conveys the adjusted sheet 1 for electroplating. Fig. 22 As shown, it includes a steel belt 10 for clamping the material 1. Since the material 1 has perforations, a hanging thin rod (not shown in the figure) is set on the steel belt 10. After the rotating body 7 rotates the material 1 and hangs the material 1 on the hanging thin rod of the steel belt 10, the clamping jaws 8 and the rotating body 7 are separated from the material 1. The steel belt 10 conveys the material 1 in a vertical state forward and performs the electroplating operation on the material 1 during the conveying process.

[0064] During the above-mentioned conveying process of the sheet 1, since the surface structure of the sheet 1 is stacked front and back, although the sheet 1 placed on the back is flipped over by the flap 5, in order to avoid the problem of erroneous processing due to the failure of electrical components and the failure to perform the reverse operation of the sheet 1 placed on the back, the conveying anti-reverse device also includes an anti-reverse detection mechanism, which is arranged on the front side of the sheet clamp and blocks the sheet 1 placed in reverse, that is, when the sheet 1 placed on the back is not turned over, it can be detected by the anti-reverse detection mechanism, thereby avoiding the problem of batch processing errors caused by electrical failure during continuous processing.

[0065] Specifically, Fig.15 As shown, the anti-reverse detection mechanism is an anti-reverse limit block 12 (preferably assembled above one side of the conveying roller 6 through a slat 11) arranged on the top of one side of the conveying mechanism. The anti-reverse limit block 12 can contact the reversely placed sheet 1 and block the sheet 1 from being conveyed ( Fig.15 The anti-reverse limit block 12 is not in contact with the forward-placed sheet 1 ( Fig.16 As shown in the state). Since the surface structure of the sheet 1 disclosed in the present application has a height difference, the height difference can be used to achieve mechanical blocking detection during the sheet 1 transmission process. If the sheet 1 is reversed, the anti-reverse limit block 12 is used to block it. Fig.17 As shown, a photoelectric switch 13 is provided between the conveying rollers 6 on the front side of the anti-reverse limit block 12. Through program setting, the detection process is as follows:

[0066] When the photoelectric switch 13 senses the sheet 1, the photoelectric switch 13 is in the open state; when the photoelectric switch 13 does not detect the sheet 1, the photoelectric switch 13 is in the closed state, and the sheet 1 triggers the loading action at the photoelectric switch 13. The loading gap of each sheet 1 is 1.5s. Therefore, after a sheet 1 is loaded, the next sheet 1 needs to run in to supplement this position. When the anti-reverse limit block 12 blocks the inverted product from passing, the photoelectric switch 13 is in the closed state. After a delay of 1.55, the equipment alarm prompts: "The loader track is stuck."

[0067] The photoelectric switch 13 is connected in series in the main control unit of the feeding unit through a signal line. When the "feeder track stuck" alarm prompt appears, the feeding unit stops running.

[0068] After receiving the alarm, the operator adjusts the direction of the sheet 1, and the sheet 1 passes through the anti-reverse limit block 12 normally and runs to the photoelectric switch 13. Then, the operator clicks "eliminate alarm" on the main control interface, starts the operation switch, and the feeding unit continues to operate normally, thereby ensuring that the sheet 1 is in a normal processing state during the subsequent clamping and transfer to the steel belt 10, avoiding the problem of processing errors after the sheet 1 is reversed.

[0069] According to the above anti-reverse device, the present application also provides an anti-reverse method for automatic transmission of a TO series package sheet 1 electroplating line, comprising the following steps:

[0070] S1. Sheet storage

[0071] like Figure 7-8 As shown, a plurality of processed and shaped sheets 1 are placed in a material storage body 2. During the placing process, the sheets 1 are placed with their front and back overlapped to maintain the stability of the placement of the sheets 1.

[0072] S2. Retrieving materials

[0073] like Figure 9-11 As shown, the material taking mechanism (the suction cup 3) moves to the top of the sheet 1 in the material storage body 2, sucks a single sheet 1, moves upward and separates from the sheet 1 not sucked in the material storage body 2, and then the material taking mechanism transfers the sucked sheet 1 placed on the front to the top side of the conveying roller 6, and moves downward to place the sucked sheet 1 on the conveying roller 6, and the material taking mechanism resets to suck the next sheet 1. If the sucked sheet 1 is placed on the reverse side, the material taking mechanism transfers the sheet 1 to the flap 5 after sucking the sheet 1, and after the material taking mechanism and the flap 5 are separated, the flap 5 (on which an induction sensor is provided, which is fed back to the program to drive the flap 5 to flip) flips automatically, and the flipped sheet 1 falls on the side conveying roller 6 with the front structure for transmission.

[0074] After the suction cup 3 sucks the material sheet 1 on the upper side, the driving screw 4 drives the material storage body 2 to move up by the height of the material sheet 1, so that the suction cup 3 can smoothly suck the material sheet 1 on the lower side.

[0075] S3, sheet conveying

[0076] The conveying mechanism conveys the web 1 placed thereon to the web clamp.

[0077] Since the surface structure of the sheet 1 disclosed in the present application has a height difference, the height difference can be used to realize mechanical blocking detection during the sheet 1 transmission process. If the sheet 1 is reversed, the anti-reverse limit block 12 can be used to block it. Fig.15 As shown, a photoelectric switch 13 is provided between the conveying rollers 6 on the front side of the anti-reverse limit block 12. Through program setting, the detection process is as follows:

[0078] When the photoelectric switch 13 senses the sheet 1, the photoelectric switch 13 is in the open state; when the photoelectric switch 13 does not detect the sheet 1, the photoelectric switch 13 is in the closed state, and the sheet 1 triggers the loading action at the photoelectric switch 13. The loading gap of each sheet 1 is 1.5s. Therefore, after a sheet 1 is loaded, the next sheet 1 needs to run in to supplement this position. When the anti-reverse limit block 12 blocks the reversed sheet 1 from passing, the photoelectric sensor is in the closed state. After a delay of 1.55, the equipment alarm prompts: "The loader track is stuck."

[0079] The signal line of the photoelectric switch 13 is connected in series in the main control unit of the feeding unit. When the "feeder track stuck" alarm prompt appears, the feeding unit stops running.

[0080] After receiving the alarm, the operator adjusts the direction of the sheet 1, and the sheet 1 passes through the anti-reverse limit block 12 normally and runs to the photoelectric switch 13. Then, the operator clicks "eliminate alarm" on the main control interface, starts the operation switch, and the feeding unit continues to operate normally, thereby ensuring that the sheet 1 is in a normal processing state during the subsequent clamping and transfer to the steel belt 10, avoiding processing errors after the sheet 1 is reversed.

[0081] S4, sheet clamping

[0082] like Figure 19-21 As shown, when the sheet 1 is clamped, the program drives the clamping jaw 8 to open outward to avoid contact with the surface of the sheet 1 during the downward movement, causing interference and squeezing of the sheet 1, and then the rotating body 7 drives the clamping jaw 8 to move downward, and the clamping jaw 8 is embedded in the clamping gap 6a, and then the clamping jaw 8 rotates to clamp the sheet 1, and then the rotating body 7 moves upward to separate the sheet 1 from the conveying roller 6. After separation, the rotating body 7 drives the sheet 1 to rotate to a vertical state to adjust the position of the sheet 1. In this state, the sheet 1 can be clamped in the processing and conveying mechanism. Then the clamping jaw 8 and the rotating body 7 are reset to wait for the next sheet 1 to be clamped.

[0083] S5, processing and transmission

[0084] After the rotating body 7 rotates the sheet 1 and hangs the sheet 1 on the hanging thin rod of the steel belt 10, the clamp 8 and the rotating body 7 are separated from the sheet 1, and the steel belt 10 conveys the sheet 1 in the vertical state forward and performs the electroplating operation on the sheet 1 during the conveying process.

[0085] The above shows and describes the basic principle, main features and advantages of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention claimed.

Claims

1. An automatic transmission anti-reverse device for a TO series package sheet electroplating line, characterized in that: include: A material storage body is used to store the processed and formed material sheets; a material taking mechanism is arranged on the top side of the material storage body, and is used to take out a single material sheet in the material storage body and adjust the material sheet to the correct conveying orientation; The conveying mechanism is arranged at one side of the material storage body, and receives and conveys the material sheet taken out by the material taking mechanism; the material sheet clamp is arranged at one side of the conveying direction of the conveying mechanism, and clamps the material sheet conveyed by the processing conveying mechanism and adjusts the material sheet orientation; the processing conveying mechanism is arranged at one side of the material sheet clamp, and clamps the material after the material sheet clamp adjusts its orientation and conveys it to the electroplating process; The material sheets are stacked up with the front and back facing each other; a flap is provided on the other side of the conveying mechanism opposite to the material storage body; The material taking mechanism sucks the positively placed sheet and transfers it to the conveying mechanism for transmission. The material taken from the reverse side is sucked and transferred to the flap for flipping and then falls on the conveying mechanism for transmission. The transmission anti-reverse device also includes an anti-reverse detection mechanism, which is arranged at the front side of the sheet clamp and blocks the sheet placed in the reverse direction; the anti-reverse detection mechanism includes an anti-reverse limit block, which is arranged at the top of one side of the transmission mechanism, and the anti-reverse limit block contacts the sheet placed in the reverse direction and blocks the sheet from being transmitted, and the anti-reverse limit block does not contact and block the sheet placed in the forward direction; The conveying mechanism is provided with a clamping gap for partially suspending the web at a position corresponding to the web clamp; The conveying mechanism is composed of a plurality of conveying rollers, and the sheet clamp includes a rotating body that rotates vertically, a clamping claw for clamping the sheet is arranged on the bottom surface of the rotating body, and a sheet baffle is also arranged on the front side of the clamping claw; The sheet clamp comprises a rotating body arranged to rotate vertically, and a clamping claw which can be embedded in the clamping gap and clamp the sheet is arranged on the bottom surface of the rotating body.

2. An anti-reverse method for an automatic anti-reverse device for a TO series package sheet electroplating line as claimed in claim 1, characterized in that: The following steps are involved: S1. Sheet storage Placing a number of processed and formed sheets into a material storage body; S2. Retrieving materials The material taking mechanism moves to the top of the sheet in the material storage body, takes up a single sheet and transfers it to the top side of the conveying mechanism, and places the taken sheet on the conveying mechanism, and the material taking mechanism resets to take up the next sheet; S3, sheet conveying The conveying mechanism conveys the web placed thereon to the web clamp; S4, sheet clamping The sheet clamp clamps the sheet on the conveying mechanism and adjusts the orientation of the sheet; S5, processing and transmission The processing and conveying mechanism clamps the sheet after the sheet clamp adjusts its orientation and conveys it for processing, and at the same time the sheet clamp is reset to clamp the next sheet to be conveyed.

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