Insulated gate bipolar transistor (IGBT) shell printing device

Abstract

The utility model discloses an IGBT (Insulated Gate Bipolar Translator) shell printing device, which comprises a machine table, a screen printing mechanism and a conveying mechanism, the screen printing mechanism and the conveying mechanism are arranged on the machine table, the shell printing device further comprises a detection mechanism, the detection mechanism comprises a support frame, a plane detection sensor and a distance detection sensor, and the plane detection sensor and the distance detection sensor are arranged on the first support frame; the plane detection sensor is vertically and downwards arranged on the supporting frame, located above the conveying mechanism and used for detecting whether the printing face of the IGBT is a plane or not, and the distance detection sensor is horizontally arranged on the supporting frame, located on one side of the conveying mechanism and used for detecting whether the IGBT is located below the plane detection sensor or not. According to the shell printing device, the plane detection mechanism and the distance detection mechanism are arranged in front of the screen printing mechanism, plane detection is conducted on an IGBT before printing through the plane detection mechanism, whether the IGBT is flatly placed or not is effectively judged, the printing quality of the shell printing device is effectively improved, and printed patterns are clearer.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic component processing technical field, concretely relates to a shell printing device of IGBT. BACKGROUND

[0002] IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor) is a kind of combined MOSFET (metal oxide semiconductor field effect transistor) and BJT (bipolar transistor) advantage compound power semiconductor device.The existing screen printing device is printed to IGBT, is directly printed to product, there is no detection to product before printing, if product is not placed flat and is detected, it will lead to poor printing quality, and if product is placed upside down, it is also possible to cause screen printing plate damage. UTILITARY MODEL CONTENT

[0003] In order to solve the problem of poor printing quality of the existing screen printing device, the utility model provides a shell printing device of IGBT.The specific technical scheme of the utility model is as follows:

[0004] A shell printing device of IGBT, comprising: machine table and silk printing mechanism and transport mechanism arranged on the machine table, the transport mechanism is used to transport IGBT to the lower side of silk printing mechanism, the silk printing mechanism is used to print IGBT, the shell printing device further includes detection mechanism, the detection mechanism includes support frame and plane detection sensor and distance detection sensor arranged on the first support frame, the plane detection sensor is vertically arranged on the support frame and located above the transport mechanism, for detecting whether the printing surface of IGBT is plane, the distance detection sensor is horizontally arranged on the support frame and located on the side of transport mechanism, for detecting whether IGBT is located below plane detection sensor.

[0005] Further, the support frame includes vertical rod and cross bar, the vertical rod is respectively arranged on the two sides of transport mechanism, the two ends of cross bar are respectively sleeved on the upper end of vertical rod, the plane detection sensor is arranged on cross bar, and the distance detection sensor is arranged on one of vertical rod.

[0006] Further, the plane detection sensor is laser plane detection sensor, the detection mechanism further includes first sleeve block, the first sleeve block is sleeved on cross bar, and the plane detection sensor and first sleeve block are fixedly arranged.

[0007] Further, the distance detection sensor is laser ranging sensor, the detection mechanism further includes second sleeve block, the second sleeve block is sleeved on vertical rod, and the distance detection sensor and second sleeve block are fixedly arranged.

[0008] Further, the conveying mechanism comprises a conveying belt assembly, a placing table and a placing seat, the placing table is in transmission connection with the conveying belt assembly, and the placing seat is in mechanical connection with the placing table, and a placing groove for placing the IGBT is arranged on the placing seat.

[0009] Further, the silk screen mechanism comprises a silk screen plate, a lifting mechanism and a squeegee, the silk screen plate and the squeegee are in transmission connection with the lifting mechanism, and the silk screen plate is located below the squeegee.

[0010] Further, a guide column is arranged below the silk screen plate, and the placing seat is provided with a guide groove matched with the guide column.

[0011] Compared with the prior art, the shell printing device has the beneficial effects that the plane detection mechanism and the distance detection mechanism are arranged in front of the silk screen mechanism, the IGBT before printing is subjected to plane detection through the plane detection mechanism, whether the IGBT is placed flat is effectively judged, the printing quality of the shell printing device is effectively improved, and the printed pattern is clearer. The distance detection mechanism is used for detecting whether the IGBT is transported to below the plane detection mechanism, verifying the result of the plane detection mechanism, and improving the detection accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 FIG. 1 is a structural schematic view of a shell printing device in an embodiment of the present application;

[0013] Fig. 2 FIG. 1 is a structural schematic view of a shell printing device in an embodiment of the present application;

[0014] Fig. 3 FIG. 1 is a structural schematic view of a shell printing device in an embodiment of the present application;

[0015] Fig. 4 FIG. 1 is a structural schematic view of a shell printing device in an embodiment of the present application. DETAILED DESCRIPTION

[0016] The embodiments of the present application are described in detail below, and the embodiment examples are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout.

[0017] In the description of the utility model, it is necessary to explain that, for the direction words, if the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the utility model.

[0018] In addition, if the terms "first", "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the "first" and "second" features can be explicitly or implicitly included one or more features, and in the description of the utility model, the meaning of "at least" is one or more, unless otherwise specifically limited.

[0019] In the utility model, unless otherwise specifically provided and limited, if the terms "assembly", "connection" and "connection" are understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; It can be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, and it can be connected internally between two elements. For ordinary skilled persons in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0020] In the utility model, unless otherwise provided and limited, the "upper" or "lower" of the first feature in the second feature can include the direct contact of the first and second features, or the contact of the first feature and the second feature through another feature between them. Moreover, the "upper", "lower" and "upper" of the first feature in the second feature include the vertical direction above and oblique above of the first feature in the second feature, or only indicate that the horizontal height of the first feature is higher than the height of the second feature. The "upper", "lower" and "lower" of the first feature in the second feature include the vertical direction below and oblique below of the first feature in the second feature, or only indicate that the horizontal height of the first feature is lower than the height of the second feature.

[0021] The technical scheme of the utility model and its beneficial effects will be clearer and more explicit by further describing the specific embodiments of the utility model in combination with the drawings of the specification. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as limiting the utility model.

[0022] As Figs. 1 to 4As shown in the figure, the housing printing device of the IGBT comprises a machine table 1, a silk printing mechanism 2 and a conveying mechanism 3 arranged on the machine table 1, the conveying mechanism 3 is used for conveying the IGBT 4 to the lower side of the silk printing mechanism 2, the silk printing mechanism 2 is used for printing the IGBT 4, and the housing printing device further comprises a detection mechanism 5, the detection mechanism 5 comprises a support frame 6 and a plane detection sensor 7 and a distance detection sensor 8 arranged on the first support frame 6, the plane detection sensor 7 is arranged vertically downward on the support frame 6 and above the conveying mechanism 3, and is used for detecting whether the printing surface of the IGBT 4 is flat, and the distance detection sensor 8 is arranged horizontally on the support frame 6 and on one side of the conveying mechanism 3, and is used for detecting whether the IGBT 4 is below the plane detection sensor 7. The conveying mechanism 3 forwards the IGBT 4, and the IGBT 4 first passes through the distance detection sensor 8, and when the distance detection sensor 8 detects that the IGBT 4 passes through, the plane detection sensor 7 is informed to detect whether the printing surface of the IGBT 4 is flat or whether the IGBT 4 is placed reversely, if the detection is passed, the conveying mechanism 3 conveys the IGBT 4 to the lower side of the silk printing mechanism 2 for silk printing, and if the detection is not passed, the production personnel or the mechanical hand is informed to perform the flattening treatment on the IGBT 4, thereby effectively improving the printing quality and preventing the pattern printed on the IGBT 4 housing from being not clear enough.

[0023] As one of the embodiments, the support frame 6 comprises vertical rods 9 and a horizontal rod 10, the vertical rods 9 are arranged on both sides of the conveying mechanism 3 respectively, the horizontal rod 10 is sleeved on the upper end of the vertical rod 9 respectively, the plane detection sensor 7 is arranged on the horizontal rod 10, and the distance detection sensor 8 is arranged on one of the vertical rods 9. The horizontal rod 10 is sleeved on the vertical rod 9, so that the height of the horizontal rod 10 is adjusted conveniently.

[0024] As one of the embodiments, the plane detection sensor 7 is a laser plane detection sensor 7, the detection mechanism 5 further comprises a first sleeve block 11, the first sleeve block 11 is sleeved on the horizontal rod 10, and the plane detection sensor 7 is fixedly arranged with the first sleeve block 11. The plane detection sensor 7 is sleeved on the horizontal rod 10 through the first sleeve block 11, so that the left-right position and the detection direction of the plane detection sensor 7 are adjusted conveniently.

[0025] As one of the embodiments, the distance detection sensor 8 is a laser distance detection sensor, the detection mechanism 5 further comprises a second sleeve block 12, the second sleeve block 12 is sleeved on the vertical rod 9, and the distance detection sensor 8 is fixedly arranged with the second sleeve block 12. The distance detection sensor 8 is sleeved on the vertical rod 9 through the second sleeve block 12, so that the up-down position and the detection direction of the plane detection sensor 7 are adjusted conveniently.

[0026] As one of the embodiments, the conveying mechanism 3 comprises a conveying belt assembly 13, a placing table 14 and a placing seat 15, the placing table 14 is in driving connection with the conveying belt assembly 13, the placing seat 15 is in mechanical connection with the placing table 14, and the placing seat 15 is provided with a placing groove for placing the IGBT 4. The IGBT 4 can be stably placed on the placing seat 15, so that the IGBT 4 is prevented from being displaced during printing, and the printing is affected.

[0027] As one of the embodiments, the screen printing mechanism 2 comprises a screen printing plate 16, a lifting mechanism 17 and a squeegee 18, the screen printing plate 16 and the squeegee 18 are in driving connection with the lifting mechanism 17, and the screen printing plate 16 is located below the squeegee 18.

[0028] As one of the embodiments, the screen printing plate 16 is provided with a guide column 19 below, and the placing seat 15 is provided with a guide groove 20 matched with the guide column 19. When the IGBT 4 is printed, the guide column 19 is inserted into the guide groove 20, so that the screen printing plate 16 and the placing seat 15 are effectively prevented from being displaced, and the printing quality is affected.

[0029] The shell printing device is provided with a plane detection mechanism 5 and a distance detection mechanism 5 in front of the screen printing mechanism 2, the IGBT 4 before printing is subjected to plane detection through the plane detection mechanism 5, so that whether the IGBT 4 is placed flat is effectively judged, the printing quality of the shell printing device is effectively improved, and the printed pattern is more clear. The distance detection mechanism 5 is used for detecting whether the IGBT 4 is conveyed to below the plane detection mechanism 5, verifying the result of the plane detection mechanism 5, and improving the accuracy of detection.

[0030] In the description of the specification, the description of the terms "in combination with an embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the utility model, and the illustrative description of the above terms in the specification does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. The connection mode in the description of the specification has obvious effects and practical effects.

[0031] Through the above description of the structure and principle, those skilled in the art should understand that the utility model is not limited to the above specific embodiments, and improvements and replacements of the known technologies in the art based on the utility model all fall within the protection scope of the utility model, which should be limited by the claims.

Claims

1. An IGBT housing printing apparatus, comprising: A machine table and a silk printing mechanism and a transportation mechanism arranged on the machine table, the transportation mechanism is used for transporting IGBT to the lower side of the silk printing mechanism, and the silk printing mechanism is used for printing IGBT, characterized in that the housing printing device further comprises a detection mechanism, the detection mechanism comprises a support frame and a plane detection sensor and a distance detection sensor arranged on the first support frame, the plane detection sensor is arranged vertically downward on the support frame and located above the transportation mechanism, and is used for detecting whether the printing surface of the IGBT is a plane, and the distance detection sensor is arranged horizontally on the support frame and located on one side of the transportation mechanism, and is used for detecting whether the IGBT is located below the plane detection sensor.

2. The IGBT housing printing apparatus according to claim 1, wherein The support frame comprises vertical rods and a horizontal rod, the vertical rods are arranged on both sides of the transportation mechanism respectively, the horizontal rod is sleeved on the upper end of the vertical rod, the plane detection sensor is arranged on the horizontal rod, and the distance detection sensor is arranged on one of the vertical rods.

3. The housing printing apparatus of the IGBT according to claim 2, characterized by, The plane detection sensor is a laser plane detection sensor, the detection mechanism further comprises a first sleeve block, the first sleeve block is sleeved on the horizontal rod, and the plane detection sensor and the first sleeve block are fixedly arranged.

4. The housing printing apparatus of the IGBT according to claim 2, characterized by, The distance detection sensor is a laser distance detection sensor, the detection mechanism further comprises a second sleeve block, the second sleeve block is sleeved on the vertical rod, and the distance detection sensor and the second sleeve block are fixedly arranged.

5. The IGBT housing printing apparatus according to claim 1, wherein The transportation mechanism comprises a conveying belt assembly, a placing table and a placing seat, the placing table is drivingly connected with the conveying belt assembly, and the placing seat is mechanically connected with the placing table, and the placing seat is provided with a placing groove for placing IGBT.

6. The housing printing apparatus of the IGBT according to claim 5, wherein The silk printing mechanism comprises a silk screen, a lifting mechanism and a scraper, the silk screen and the scraper are drivingly connected with the lifting mechanism, and the silk screen is located below the scraper.

7. The housing printing apparatus of the IGBT according to claim 6, wherein The lower side of the silk screen is provided with a guide column, and the placing seat is provided with a guide groove matched with the guide column.

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