Rack system applied to SMT production line

Abstract

The utility model relates to a material rack system applied to an SMT production line. The material rack system comprises a control box, a plurality of material racks and a multi-stage junction box, the junction box comprises a wire inlet end and a plurality of wire outlet ends; the wire inlet end of the first-stage junction box is connected with the control box through a CAN bus, in any two adjacent stages of junction boxes, one wire outlet end of the upper-stage junction box is connected with one material frame, and one wire outlet end of the upper-stage junction box is connected with the wire inlet end of the lower-stage junction box; according to the material rack system connected in the cascading mode, the control boxes are connected with the multiple material racks through the CAN bus, topological connection is completed through the multiple stages of junction boxes, the number of the control boxes can be greatly reduced, and therefore the size of the material racks is reduced, space layout is more flexible, and the service life of the material racks is prolonged. And meanwhile, the overall power consumption and the fault probability of the control box are also reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to material rack system technical field more specifically, relate to a material rack system for SMT production line. BACKGROUND

[0002] SMT production line also called surface mount technology (Surface Mount Technology for short SMT) is the new generation electronic assembly technology developed from hybrid integrated circuit technology, adopts component surface mount technology and reflow soldering technology as the characteristics, becomes the new generation assembly technology in electronic product manufacturing,

[0003] The material rack applied to the SMT production line is used to provide various electronic materials for the production line, and multiple material racks are usually arranged, and the currently used mode is as shown in the figure: Figure 1 Each material rack is configured with a control box, and the material rack system is formed by communication of multiple control boxes, and the system structure has the following defects: 1, each material rack is configured with a control box, which makes the material rack bulky and increases the assembly difficulty; 2, the overall power consumption is large; 3, the control box is more prone to failure, and a material rack system applied to the SMT production line is needed to better solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem, and provides a material rack system applied to the SMT production line.

[0005] The utility model adopts the technical scheme to solve the technical problem:

[0006] A material rack system applied to the SMT production line is constructed, which comprises a control box, multiple material racks and multiple stage distribution boxes; the distribution box comprises a wire inlet end and multiple wire outlet ends; the wire inlet end of the first stage distribution box is connected with the control box through the CAN bus, and in any two adjacent stage distribution boxes, one wire outlet end of the upper stage distribution box is connected with one material rack, and one wire outlet end of the upper stage distribution box is connected with the wire inlet end of the lower stage distribution box.

[0007] The utility model discloses a material rack system applied to the SMT production line, wherein the wire inlet end and multiple wire outlet ends of the distribution box are connected, and the line connected is provided with a fuse and a common mode filter module.

[0008] The utility model discloses a material rack system applied to the SMT production line, wherein multiple wire outlet ends of the distribution box are connected two by two, and the line connected is provided with a fuse and a common mode filter.

[0009] The utility model discloses a material frame system for SMT production line, wherein, the incoming line end and a plurality of outgoing line ends all adopt 8PIN interface, a plurality of 8PIN interfaces all adopt RJ-45 interface, or a plurality of 8PIN interfaces all adopt wire arrangement interface, or a part of a plurality of 8PIN interfaces adopts RJ-45 interface, and another part adopts wire arrangement interface.

[0010] The utility model discloses a material frame system for SMT production line, wherein, the 8 interfaces of 8PIN interface are first V+ interface, second V+ interface, CANH interface, CANL interface, MATCH interface, INIT interface, first GND interface and second GND interface in proper order.

[0011] The first V+ interface and the second V+ interface of any 8PIN interface of the branch box all are electrically connected with one end of the corresponding fuse, and the other end of the fuse is electrically connected with the positive input pin of the corresponding common mode filter, and the first GND interface and the second GND interface of any 8PIN interface all are electrically connected with the negative input pin of the corresponding common mode filter.

[0012] The differential mode output pin of any common mode filter of the branch box all is electrically connected with the differential mode output pin of other common mode filters, and the common mode output pin of any common mode filter all is electrically connected with the common mode output pin of other common mode filters.

[0013] The utility model discloses a material frame system for SMT production line, wherein, the CANH interface of any 8PIN interface of the branch box all is electrically connected with the first resistance, and the end away from the corresponding CANH interface of a plurality of first resistances all is electrically connected, the CANL interface of any 8PIN interface of the branch box all is electrically connected with the second resistance, and the end away from the corresponding CANL interface of a plurality of second resistances all is electrically connected, the MATCH interface of any 8PIN interface of the branch box all is electrically connected with the third resistance, and the end away from the corresponding MATCH interface of a plurality of third resistances all is electrically connected, the INIT interface of any 8PIN interface of the branch box all is electrically connected with the fourth resistance, and the end away from the corresponding INIT interface of a plurality of fourth resistances all is electrically connected.

[0014] The utility model discloses a material frame system for SMT production line, wherein, the incoming line end of the branch box of first grade is connected with the CAN1 interface of the control box through the twisted pair wire.

[0015] The utility model discloses a material frame system for SMT production line, wherein, the outgoing line end of the branch box is connected with the induction plate or control panel of a material frame through the twisted pair wire.

[0016] The material rack system connected through the cascading mode of the application, adopts CAN bus to connect the control box with multiple material racks, and relies on multiple stage distribution boxes to complete topology connection, so that the number of control boxes can be greatly reduced, thereby reducing the size of the material racks, making the spatial layout more flexible, and also reducing the overall power consumption and the failure probability of the control box. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the present application will be further described below with reference to the drawings and embodiments. The drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings:

[0018] Figure 1 is a schematic diagram of the existing material rack system applied to the SMT production line;

[0019] Figure 2 is a schematic diagram of the material rack system applied to the SMT production line of the preferred embodiment of the present application;

[0020] Figure 3 is a circuit diagram of the distribution box applied to the SMT production line of the preferred embodiment of the present application;

[0021] Figure 4 is a 4-wire interface circuit diagram of the distribution box applied to the SMT production line of the preferred embodiment of the present application. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0023] The material rack system applied to the SMT production line of the preferred embodiment of the present application, as shown in Figure 2 , and referring to Figure 3 and Figure 4 , comprises a control box 1, multiple material racks 2 and multiple stage distribution boxes 3. The distribution box 3 comprises a wire inlet end and multiple wire outlet ends. The wire inlet end of the first stage distribution box 3 is connected with the control box 1 through CAN bus, and in any two adjacent stage distribution boxes 3, a wire outlet end of the upper stage distribution box 3 is connected with a material rack 2, and a wire outlet end of the upper stage distribution box 3 is connected with the wire inlet end of the lower stage distribution box 3.

[0024] The material rack system of this application, which is connected by cascading, uses a CAN bus to connect the control box 1 with multiple material racks 2 and relies on multi-level junction boxes 3 to complete the topology connection. This can significantly reduce the number of control boxes 1, thereby reducing the size of the material racks 2, making the spatial layout more flexible, and also reducing the overall power consumption and the failure probability of the control boxes.

[0025] It should be noted that the number of cascaded junction boxes 3 can be two or more, and the number of outgoing terminals of junction boxes 3 can be two or more. Correspondingly, the number of racks 2 connected to each level of junction box 3 is linked to the number of outgoing terminals. That is, N outgoing terminals can be connected to a maximum of N-1 racks. Similarly, the outgoing terminals of a single junction box 3 can be connected to one or more next-level junction boxes 3 as needed. The cascading schemes obtained by these changes in quantity or connection method are all within the scope of protection of this application.

[0026] Preferably, the junction box 3 can be an existing 8-core network cable junction box, or it can be the junction box structure described in this application, all of which fall within the scope of protection of this application.

[0027] Specifically: The incoming terminal of junction box 3 is connected to multiple outgoing terminals, and each connected line is equipped with a fuse and a common-mode filter module, which can provide overcurrent protection and common-mode filtering function for the line composed of the incoming and outgoing terminals.

[0028] Furthermore, the multiple outgoing terminals of junction box 3 are connected in pairs, and the connected lines are equipped with fuses and common-mode filters, which can provide overcurrent protection and common-mode filtering functions for the lines composed of multiple outgoing terminals.

[0029] like Figure 3 As shown, taking a junction box consisting of one input terminal and three output terminals as an example, the circuit description is as follows:

[0030] The incoming line and multiple outgoing lines all use an 8-pin interface. The eight pins of the 8-pin interface are, in order: first V+ interface, second V+ interface, CANH interface, CANL interface, MATCH interface, INIT interface, first GND interface and second GND interface.

[0031] Multiple 8-pin interfaces all use RJ-45 interfaces, or multiple 8-pin interfaces all use ribbon cable interfaces, or some of the multiple 8-pin interfaces use RJ-45 interfaces and others use ribbon cable interfaces; all three of these interface combinations fall within the scope of protection of this application; ribbon cable interfaces, such as... Figure 4 As shown;

[0032] In a preferred embodiment, it can be used in, for example Figure 3Each interface of the circuit diagram shown is connected to one or more interfaces, such as in the form of 4 RJ-45 interfaces matched with 4 row line interfaces, to improve interface applicability;

[0033] The first V+ interface and the second V+ interface of any 8PIN interface of the junction box are electrically connected to one end of a corresponding fuse (marked as F1, F2, F3, F4), and the other end of the fuse is electrically connected to the positive input pin of a corresponding common mode filter (marked as L1, L2, L3, L4), and the first GND interface and the second GND interface of any 8PIN interface are electrically connected to the negative input pin of a corresponding common mode filter; Figure 3 Figure 3 The differential mode output pin of any common mode filter of the junction box is electrically connected to the differential mode output pin of another common mode filter, and the common mode output pin of any common mode filter is electrically connected to the common mode output pin of another common mode filter;

[0034] The CANH interface of any 8PIN interface of the junction box is electrically connected to a first resistor (marked as R1, R5, R9, R13), and the far end of the plurality of first resistors is electrically connected; the CANL interface of any 8PIN interface of the junction box is electrically connected to a second resistor (marked as R2, R6, R10, R14), and the far end of the plurality of second resistors is electrically connected; the MATCH interface of any 8PIN interface of the junction box is electrically connected to a third resistor (marked as R3, R7, R11, R15), and the far end of the plurality of third resistors is electrically connected; and the INIT interface of any 8PIN interface of the junction box is electrically connected to a fourth resistor (marked as R4, R8, R12, R16), and the far end of the plurality of fourth resistors is electrically connected;

[0035] The advantage of using this kind of circuit is that in the case of guaranteeing the protection function of the fuse and the common mode filter function, any one of the four-way interface can be used as the incoming line end, and any one can be used as the outgoing line end, which guarantees the protection function and brings great convenience to the connection assembly, and there is no need to worry about the problem of reverse connection, which is convenient for debugging. Figure 3 Figure 3 Figure 3 Figure 3

[0036]

[0037] ​​​​​​Preferably, the incoming wire end of the first-stage distribution box 3 is connected with the CAN1 interface of the control box 1 through 8-core hard straight wires, in any two adjacent distribution boxes 3, the outgoing wire end of the upper-stage distribution box 3 is connected with the sensing plate or the control plate of a rack 2 through 8-core spring wires; in any two adjacent distribution boxes 3, the second outgoing wire end of the upper-stage distribution box 3 is connected with the incoming wire end of the lower-stage distribution box 3 through 8-core hard straight wires; in this way, during construction, the connection engineering of the control box 1 and the multi-stage distribution boxes 3 is taken as the preliminary engineering of the whole system, and can be assembled preferentially, and then the racks 2 are installed to the interfaces of the reserved distribution boxes 3, and when the racks 2 are installed, 8-core spring wires are adopted, so that the assembly is more convenient and flexible.

[0038] It should be understood that the above description can be improved or changed by those skilled in the art, and all these improvements and changes shall belong to the protection scope of the appended claims of the utility model.

Claims

1. A rack system applied to an SMT production line, characterized in that, It comprises a control box, a plurality of racks and a plurality of multi-stage distribution boxes; the distribution boxes comprise a incoming line end and a plurality of outgoing line ends; the incoming line end of the first-stage distribution box is connected with the control box through a CAN bus, and in any two adjacent stages of distribution boxes, an outgoing line end of the upper-stage distribution box is connected with a rack, and an outgoing line end of the upper-stage distribution box is connected with the incoming line end of the lower-stage distribution box.

2. The rack system for SMT production line according to claim 1, wherein, The incoming line end and the plurality of outgoing line ends of the distribution box are all connected, and a fuse and a common mode filter module are arranged on the connected line.

3. The rack system for SMT production line according to claim 2, wherein, The plurality of outgoing line ends of the distribution box are connected in pairs, and a fuse and a common mode filter are arranged on the connected line.

4. The rack system applied to the SMT production line according to claim 2 or 3, characterized in that, The incoming line end and the plurality of outgoing line ends all adopt 8PIN interfaces; the plurality of 8PIN interfaces all adopt RJ-45 interfaces, or the plurality of 8PIN interfaces all adopt flat cable interfaces, or a part of the plurality of 8PIN interfaces adopt RJ-45 interfaces and the other part adopt flat cable interfaces.

5. The rack system for SMT production line according to claim 4, wherein, The eight interfaces of the 8PIN interface are a first V+ interface, a second V+ interface, a CANH interface, a CANL interface, a MATCH interface, an INIT interface, a first GND interface and a second GND interface in sequence; The first V+ interface and the second V+ interface of any 8PIN interface of the distribution box are electrically connected with one end of the corresponding fuse, the other end of the fuse is electrically connected with the positive input pin of the corresponding common mode filter, and the first GND interface and the second GND interface of any 8PIN interface are electrically connected with the negative input pin of the corresponding common mode filter; The differential mode output pin of any common mode filter of the distribution box is electrically connected with the differential mode output pin of other common mode filters, and the common mode output pin of any common mode filter is electrically connected with the common mode output pin of other common mode filters.

6. The rack system for SMT production line according to claim 5, wherein, The CANH interface of any 8PIN interface of the distribution box is electrically connected with a first resistor, and the ends of the plurality of first resistors away from the corresponding CANH interface are all electrically connected; the CANL interface of any 8PIN interface of the distribution box is electrically connected with a second resistor, and the ends of the plurality of second resistors away from the corresponding CANL interface are all electrically connected; the MATCH interface of any 8PIN interface of the distribution box is electrically connected with a third resistor, and the ends of the plurality of third resistors away from the corresponding MATCH interface are all electrically connected; the INIT interface of any 8PIN interface of the distribution box is electrically connected with a fourth resistor, and the ends of the plurality of fourth resistors away from the corresponding INIT interface are all electrically connected.

7. The rack system for SMT production line according to claim 1, wherein, The incoming line end of the first-stage distribution box is connected with the CAN1 interface of the control box through a twisted pair.

8. The rack system for SMT production line according to claim 1, wherein, An outgoing line end of the distribution box is connected with the induction plate or the control plate of a rack through a flat cable.

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