Multi-head automatic steel sheet feeding device

Abstract

The utility model discloses a multi-head automatic steel sheet feeding device which is arranged on a machine cabinet and comprises a first streamline, a stock bin, a jacking mechanism, a positioning mechanism and a product taking mechanism which are arranged on the machine cabinet. The attaching precision of the steel sheets can be guaranteed through the first positioning module and the second positioning module, and meanwhile, the simultaneous attaching action of different kinds of steel sheets is achieved through the multiple stock bins and the multiple piece taking devices. Specifically, two kinds of steel sheets are stacked in two stock bins respectively, and when the attaching action of the steel sheets is carried out, two piece taking devices are driven by a transfer module to adsorb one steel sheet from two primary positioning areas respectively and transfer the two steel sheets to two secondary positioning areas respectively, so that secondary positioning is achieved; and then the transfer module drives the two piece taking devices to adsorb the two steel sheets which are subjected to secondary positioning and transfer and attach the steel sheets to the surface of the circuit board on the carrier located at the working position.

Description

TECHNICAL FIELD

[0001] The utility model relates to pcb production technical field, concretely relates to a multi -head automatic steel sheet device. BACKGROUND

[0002] PCB (Printed Circuit Board), Chinese name is printed circuit board, also called printed wiring board, is an important electronic component, is the support of electronic components, is the carrier of electronic components electrical connection. In the processing of PCB circuit board, the PCB in the carrier needs to be fixed to prevent PCB displacement in the subsequent production process.

[0003] The attached steel sheet is a common way to fix the PCB, a magnet is installed on the carrier at the appropriate position, the steel sheet is attached to the carrier through the PCB to achieve the purpose of fixing the PCB. The traditional attachment method is manual attachment. A piece of steel sheet is manually picked up and attached to the carrier fixed position according to the specified front and back direction. The manual attachment process is complicated.

[0004] To solve this problem, in the prior art, such as patent document with application number CN201721374899.9, discloses an automatic device for attaching flexible PCB, which uses a central controller to control the first and second attachment heads and the attachment platform. The position sensor senses the position of the PCB to be attached and sends a signal to the central controller. The central controller controls the first and second attachment heads to stagger the attachment. The return time of one attachment head is fully utilized, and the other attachment head performs the attachment work, which improves the production efficiency. The first and second attachment heads are respectively connected to the attachment platform to improve the attachment precision and production quality.

[0005] Although the above-mentioned patent document provides a technical solution to solve the problem of complicated manual attachment process and low production efficiency, but there are limitations in specific implementation, as follows:

[0006] First of all, due to the different structure design of PCB, sometimes one or more steel sheets need to be attached on the carrier, and each steel sheet is not less than one. At this time, if one by one is attached, the efficiency is low (in the above-mentioned patent document, through the way of two attachment heads staggered attachment, although it can speed up the attachment efficiency to a certain extent, but this way is more suitable for single steel sheet attachment. Once it is multiple steel sheets, and the placement position of different steel sheets is different, it is easy to appear that the attachment position of the latter steel sheet is offset after the attachment of the former steel sheet, which needs to spend time to arrange, resulting in the reduction of overall work efficiency);

[0007] Secondly, when different kinds of steel sheets are sucked to the carrier, the precision of the attachment needs to be ensured, if the steel sheets are directly sucked from the feeding area to the carrier, the phenomenon of the position deviation of the steel sheets is prone to occur (because the steel sheets are in the feeding area, once the position is slightly deviated, the attachment is deviated).

[0008] Therefore, how to solve the problems existing in the prior art becomes the subject to be studied and solved by the utility model. Utility model content

[0009] The utility model provides a kind of multi-head automatic steel sheet feeding device, to solve the technical problems presented in the above background technology.

[0010] To achieve the above object, the utility model adopts the technical scheme that a kind of multi-head automatic steel sheet feeding device is provided, and the steel sheet feeding device is arranged on the cabinet to be used for the attachment steel sheet operation on the surface of circuit board on the carrier, and the steel sheet feeding device includes first streamline, stock bin, jacking mechanism, positioning mechanism, product taking mechanism arranged on the cabinet;

[0011] The first streamline is provided with a working position, and the steel sheet is transferred to the working position to perform the attachment steel sheet operation, and the surface of the carrier is provided with a plurality of bearing positions for bearing the same kind or different kinds of steel sheets;

[0012] A plurality of stock bins are arranged along the streamline direction of the first streamline, and the stock bin is provided with a storage groove for stacking the bearing steel sheet;

[0013] The jacking mechanism includes a jacking module for simultaneously jacking each steel sheet in each storage groove;

[0014] The positioning mechanism includes a first positioning module and a second positioning module, and the first positioning module and the second positioning module are arranged on the periphery of the stock bin;

[0015] The first positioning module has a movable end penetrating into the interior of the stock bin and used for abutting against the steel sheet in the stock bin to perform primary positioning, and the area in the stock bin positioned by the first positioning module is defined as a primary positioning area;The second positioning module is provided with a storage plate, and the storage plate is provided with a secondary positioning area, and the shape of the secondary positioning area is matched with the shape of the steel sheet;

[0016] The product taking mechanism includes a transfer module and a pick-up device, and the execution end of the transfer module is connected with a plurality of pick-up devices, and the transfer module drives a plurality of pick-up devices to grab / absorb the steel sheet from a plurality of primary positioning areas and transfer the steel sheet to a secondary positioning area, and then the transfer module drives a plurality of pick-up devices to grab / absorb the steel sheet from the secondary positioning area and transfer the steel sheet to the surface of the circuit board on the carrier located in the working position.

[0017] In the above scheme, the explanation of the relevant content is as follows:

[0018] In the above scheme, the jacking module pushes the stacked steel sheets from the bottom of the stock bin and rises one piece at a time after taking away one piece, and the height after rising should be in the first positioning area.

[0019] In the above scheme, the piece taking device can be a mechanical hand or a suction cup.

[0020] Further technical solutions, the first positioning module includes at least one first cylinder connected on each of the two adjacent sides of the stock bin.

[0021] Specifically, at least one first cylinder is arranged on each of the two adjacent surfaces (i.e. one surface in the length direction and one surface in the width direction) of the four surfaces around the stock bin, and the moving end of the first cylinder will penetrate into the stock bin during work.

[0022] Further technical solutions, the second positioning module includes a second cylinder connected with the periphery of the stock bin, the piston column of the second cylinder has a set distance with the periphery of the stock bin, the storage plate is connected to the end of the piston column in the horizontal direction, and the second positioning area is a clamping groove matched with the shape of the steel sheet.

[0023] The piston column has an extended state and a retracted state;

[0024] After the steel sheet in the stock bin is positioned against;

[0025] When the piston column is in the extended state, the storage plate blocks the storage groove, the second positioning area is directly above the storage groove, and the steel sheet is transferred to the second positioning area by the piece taking device;

[0026] When the piston column is in the retracted state, the steel sheet in the second positioning area is transferred to the bearing position by the piece taking device, and the storage plate is separated from the slot of the storage groove.

[0027] With the above design, the steel sheet is positioned twice to make the precision higher when the steel sheet is finally attached.

[0028] Further technical solutions, the two ends of the steel sheet are provided with positioning holes;

[0029] The second positioning area is provided with a positioning column, and when the steel sheet is transferred to the second positioning area, the positioning column is configured to act on the positioning hole.

[0030] With the design, the steel sheet can be quickly positioned in the second positioning area.

[0031] Further, the transfer module comprises a horizontal transfer module and a vertical transfer module.

[0032] The horizontal transfer module is arranged above the first flow line and connected with the cabinet, and the vertical transfer module is arranged on the horizontal transfer module and moves along a direction parallel and / or perpendicular to the flow line direction of the first flow line in the same plane through the horizontal transfer module.

[0033] The vertical transfer module is provided with a lifting end, which is an execution end of the transfer module. Each of the piece taking devices is arranged one-to-one with each of the bins, and the piece taking devices move in a direction perpendicular to the plane of the working position through the vertical transfer module.

[0034] Further, the horizontal transfer module comprises a second track and a pair of first tracks arranged directly above the surface of the cabinet.

[0035] The second track is slidingly arranged between the two first tracks. In a top view, the first tracks are perpendicular to the flow line direction of the first flow line, and the second track is parallel to the flow line direction of the first flow line.

[0036] The second track reciprocates above the first flow line and above all the bins through the first tracks.

[0037] Since the piece taking devices can move in the same plane along a direction parallel and / or perpendicular to the flow line direction of the first flow line through the above design, the piece taking devices can reciprocate above the bins and above the carrying positions with or without steel sheets.

[0038] Further, the vertical transfer module is arranged on the second track, and the vertical transfer module moves along a direction parallel to the flow line direction of the first flow line through the second track.

[0039] The lifting end of the vertical transfer module is provided with a plurality of fixing tables, and the lower end of each fixing table is provided with a mounting plate. Each mounting plate is connected one-to-one with each piece taking device.

[0040] Through the above design, the piece taking devices can be lifted from above the bins to take steel sheets or lifted from above the carrying positions to put steel sheets.

[0041] Further, the piece taking device comprises a plurality of fixed suction cups arranged on the mounting plate. Through the above design, the steel sheets will not deviate during the fixing process.

[0042] Further technical solutions, the first streamline includes two third tracks positioned and connected on the upper surface of the workbench, and the two third tracks are symmetrically arranged.

[0043] Further technical solutions, the first streamline further includes a pair of stop modules arranged between the two third tracks, the two stop modules are symmetrically arranged based on the symmetry axis of the two third tracks, and the stop modules are provided with lifting stop ends, when the carrier is in the working position, the lifting stop ends are configured to act on the end of the carrier.

[0044] As for the "first", "second", etc. used herein, it is not particularly intended to indicate the order or sequence, nor to limit the present application, but only to distinguish the components or operations described by the same technical terms.

[0045] As for the "connection" or "positioning" used herein, it can mean that two or more components or devices are in direct physical contact with each other, or are indirectly in physical contact with each other, or can mean that two or more components or devices are in operation or action.

[0046] As for the "contain", "include", "have" and the like used herein, they are all open terms, that is, they mean containing but not limited to.

[0047] As for the words (terms) used herein, except for special notes, generally have the usual meaning of each word used in this field, in the content of the present application and in the special content. Some words used to describe the present application will be discussed below or elsewhere in the specification to provide additional guidance for those skilled in the art on the description of the present application.

[0048] As for the "front", "back", "up", "down", "left", "right" and the like used herein, they are all directional words, which are only used to illustrate the positional relationship between structures in the present application, and are not used to limit the protection scheme and the specific direction in actual implementation.

[0049] The working principle and advantages of the utility model are as follows:

[0050] The utility model discloses a first positioning module and second positioning module can guarantee the precision when steel sheet is attached, and simultaneously through a plurality of stock bin and a plurality of piece taking device, the simultaneous attaching action of different kinds of steel sheets is realized. BRIEF DESCRIPTION OF DRAWINGS

[0051] BRIEF DESCRIPTION OF DRAWINGS Figure 1 It is the overall perspective view in the utility model embodiment;

[0052] BRIEF DESCRIPTION OF DRAWINGS Figure 2 It is the overall front view in the utility model embodiment;

[0053] BRIEF DESCRIPTION OF DRAWINGS Figure 3 It is the overall left view in the utility model embodiment;

[0054] BRIEF DESCRIPTION OF DRAWINGS Figure 4 It is the overall plan view in the utility model embodiment;

[0055] BRIEF DESCRIPTION OF DRAWINGS Figure 5 It is the vertical transfer module perspective view in the utility model embodiment;

[0056] BRIEF DESCRIPTION OF DRAWINGS Figure 6 It is the vertical transfer module front view in the utility model embodiment;

[0057] BRIEF DESCRIPTION OF DRAWINGS Figure 7 It is the vertical transfer module left view in the utility model embodiment;

[0058] BRIEF DESCRIPTION OF DRAWINGS Figure 8 It is the vertical transfer module plan view in the utility model embodiment;

[0059] BRIEF DESCRIPTION OF DRAWINGS Figure 9 It is the jacking mechanism perspective view in the utility model embodiment;

[0060] BRIEF DESCRIPTION OF DRAWINGS Figure 10 It is the jacking mechanism front view in the utility model embodiment;

[0061] BRIEF DESCRIPTION OF DRAWINGS Figure 11 It is the jacking mechanism left view in the utility model embodiment;

[0062] BRIEF DESCRIPTION OF DRAWINGS Figure 12 It is the jacking mechanism plan view in the utility model embodiment.

[0063] In the above drawings: 1, first streamline; 2, cabinet; 3, product taking mechanism; 4, jacking mechanism; 5, working position; 6, bearing position; 7, stock bin; 8, storage groove; 9, steel sheet; 10, jacking module; 11, fixed frame; 12, first positioning module; 13, second positioning module; 14, storage plate; 15, secondary positioning area; 16, horizontal transfer module; 17, vertical transfer module; 18, taking device; 19, first air cylinder; 20, second air cylinder; 21, positioning column; 22, positioning hole; 23, second track; 24, first track; 25, fixed table; 26, fixed suction cup; 27, third track; 28, gear module; 29, lifting gear end; 30, mounting plate. DETAILED DESCRIPTION

[0064] The utility model will be further described below in combination with the drawings and examples:

[0065] Examples: the present case will be clearly explained by the drawings and detailed description, any person skilled in the art can change and modify the technology taught by the present case after understanding the examples of the present case, which does not deviate from the spirit and scope of the present case.

[0066] The language in this paper is only for describing specific embodiments and is not intended to limit the present case. The singular form such as "one", "this", "this", "this" and "this" as used herein also includes the plural form.

[0067] Referring to the drawings Figures 1-12 As shown in the drawings, a multi-head automatic steel sheet feeding device is arranged on the cabinet 2 for attaching steel sheets 9 to the surface of the circuit board on the carrier. The steel sheet feeding device comprises a first streamline 1, a stock bin 7, a jacking mechanism 4, a positioning mechanism and a product taking mechanism 3 arranged on the cabinet 2;

[0068] The first streamline 1 has a working position 5, and the steel sheet 9 is moved to the working position 5 for attaching the steel sheet 9. The surface of the carrier is provided with a plurality of bearing positions 6 for bearing steel sheets 9 of the same type or different types;

[0069] A plurality of stock bins 7 are arranged along the streamline direction of the first streamline 1. The stock bin 7 is provided with a storage groove 8 for stacking the bearing steel sheet 9;

[0070] The jacking mechanism 4 comprises a jacking module 10 for simultaneously jacking each steel sheet 9 in each storage groove 8;

[0071] The positioning mechanism comprises a first positioning module 12 and a second positioning module 13, and the first positioning module 12 and the second positioning module 13 are arranged on the side of the stock bin 7;

[0072] The first positioning module 12 has an active end that extends into the interior of the hopper 7 and is used to abut against the steel sheet 9 inside the hopper 7 for primary positioning, and defines the area in the hopper 7 positioned by the first positioning module 12 as the primary positioning area; the second positioning module 13 has a storage plate 14, and the storage plate 14 is provided with a secondary positioning area 15, the shape of the secondary positioning area 15 being matched with the shape of the steel sheet 9.

[0073] The product retrieval mechanism 3 includes a transfer module and a picker 18. The execution end of the transfer module is connected to multiple pickers 18. The transfer module drives the multiple pickers 18 to grab / adsorb steel sheets 9 from multiple primary positioning areas and transfer the steel sheets 9 to the secondary positioning area 15. Then, the transfer module drives the multiple pickers 18 to grab / adsorb steel sheets 9 from the secondary positioning area 15 and transfer and attach the steel sheets 9 to the surface of the circuit board on the carrier located at the working position 5.

[0074] In this utility model, the lifting mechanism 4 includes a lifting module 10 for lifting each steel sheet 9 in the storage trough 8. The lifting module 10 is disposed on the cabinet 2. The lifting module 10 is provided with multiple fixed frames 11. The upper part of each fixed frame 11 is respectively positioned and connected to each of the material bins 7. The lifting module 10 has multiple working ends. Each working end is respectively disposed in each fixed frame 11 and moves in a direction perpendicular to the surface of the working position 5.

[0075] When the storage tank 8 is carrying steel sheet 9, each of the working ends is configured at the bottom of the storage tank 8 on each of the corresponding hoppers 7.

[0076] In this utility model, the lifting module 10 pushes the stacked steel sheets 9 from the bottom of the hopper 7 to rise. Each time a sheet is removed, a sheet will be lifted, and the height after being lifted should be within the positioning area.

[0077] In this invention, the part picker 18 can be a robotic arm or a suction cup. However, since the position of the steel plate 9 is likely to shift when the robotic arm removes or places the part, the part picker 18 includes a plurality of fixed suction cups 26 that are spaced apart and evenly distributed on the mounting plate 30.

[0078] In this invention, the accuracy of steel sheet 9 during attachment can be ensured by the first positioning module 12 and the second positioning module 13, while the simultaneous attachment of different types of steel sheets 9 can be achieved by multiple material bins 7 and multiple part pickers 18.

[0079] by Figures 1 to 1 For example, in the case of the 12th, there are two hoppers 7 (only two are set for both the primary positioning area and the secondary positioning area 15), and there are also two pickers 18.

[0080] Specifically, first, two kinds of steel sheets 9 are respectively stacked in two hoppers 7. When the steel sheet 9 adhering action is performed, the two pickers 18 are directly driven by the transfer module to adsorb one steel sheet 9 from the two primary positioning areas respectively, and then the two steel sheets 9 are respectively moved to the two secondary positioning areas 15 to realize secondary positioning. Then the two pickers 18 are driven by the transfer module to adsorb the two steel sheets 9 that have completed secondary positioning, and then the steel sheets 9 are moved and adhered to the surface of the circuit board on the carrier in the working position 5.

[0081] In this way, one positioning operation of the steel sheet 9 is completed.

[0082] Then, the jacking module 10 pushes the stacked steel sheets 9 from the bottom of the hopper 7 to lift up. The lifted steel sheets 9 are in the primary positioning area, so that the positioning operation can be performed in a cycle.

[0083] In some embodiments, the first positioning module 12 includes at least one first cylinder 19 connected to each of the two adjacent sides of the hopper 7. The first positioning module 12 is not limited to a cylinder, but can also be an electric push rod.

[0084] Specifically, at least one first cylinder 19 is arranged on each of the two adjacent surfaces (i.e. one surface in the length direction and one surface in the width direction) of the four surfaces of the hopper 7. The active end of the first cylinder 19 penetrates into the hopper 7 during operation to position the steel sheet 9.

[0085] In some embodiments, the second positioning module 13 includes a second cylinder 20 (not limited to a cylinder, but can also be an electric push rod) connected to the side of the hopper 7. The piston rod of the second cylinder 20 has a set distance from the side of the hopper 7. The storage plate 14 is connected to the end of the piston rod in the horizontal direction. The secondary positioning area 15 is a clamping groove matched with the shape of the steel sheet 9. The secondary positioning area 15 is arranged on the side surface of the storage plate 14 away from the hopper 7.

[0086] The piston rod has an extended state and a retracted state.

[0087] After the steel sheet 9 in the hopper 7 is positioned against the storage plate 14,

[0088] When the piston rod is in the extended state, the storage plate 14 blocks the storage groove 8, and the secondary positioning area 15 is directly above the storage groove 8. The steel sheet 9 is transferred to the secondary positioning area 15 by the picker 18.

[0089] When the piston rod is in the retracted state, the steel sheet 9 in the secondary positioning area 15 is transferred to the carrier position 6 by the picker 18, and the storage plate 14 is separated from the slot of the storage groove 8.

[0090] With the above design, the steel sheet 9 is positioned twice to make the steel sheet 9 more accurate when finally adhered.

[0091] That is, the second positioning module 13 optimizes the positioning process of the steel sheet 9 through precise mechanical operation, thereby improving the accuracy during final attachment.

[0092] Firstly, the second cylinder 20 controls the position of the storage plate 14 through the piston rod. The piston rod has two states of extension and retraction, and in the two states, it performs different functions. When the piston rod is in the extended state, the storage plate 14 will slide horizontally above the storage groove 8 to block the slot. In the retracted state, the storage plate 14 is on the side of the hopper 7, and the slot is opened.

[0093] Since secondary positioning is required at this time, the steel sheet 9 will first be transferred out of the hopper 7 by the pick-up device 18, then the storage plate 14 will block the slot, and then the steel sheet 9 will be placed in the secondary positioning area 15.

[0094] It should be noted that the storage plate 14 can also be fixedly arranged on the side of the hopper 7, and the position of the pick-up device 18 is moved to realize secondary positioning of the steel sheet 9, but this operation needs to frequently change the position of the pick-up device 18, which is not conducive to the positioning and attachment of the steel sheet, so the probability of selection is relatively low.

[0095] In some specific embodiments, the two ends of the steel sheet 9 are provided with positioning holes 22;

[0096] The secondary positioning area 15 is provided with a positioning column 21, and when the steel sheet 9 is transferred into the secondary positioning area 15, the positioning column 21 is configured to act in the positioning hole 22.

[0097] With the above design, the steel sheet 9 can be quickly positioned in the secondary positioning area 15.

[0098] Specifically, first, the steel sheet 9 is extracted from the storage groove 8 by the pick-up device 18 after one positioning, and is moved above the secondary positioning area 15 (at this time, the storage plate 14 will move to block the slot). Then, during the placement process, the positioning column 21 automatically inserts into the positioning hole 22. When the positioning column 21 is completely inserted into the positioning hole 22, the steel sheet 9 is firmly fixed in the secondary positioning area 15, avoiding displacement or error caused by subsequent operations. Such a design greatly simplifies the positioning steps, reduces the time and effort of manual adjustment, and at the same time improves the overall efficiency of the system and the product accuracy.

[0099] In some specific embodiments, the transfer module includes a horizontal transfer module 16 and a vertical transfer module 17;

[0100] The horizontal transfer module 16 is arranged above the first flow line 1 and is connected to the cabinet 2. The vertical transfer module 17 is arranged on the horizontal transfer module 16 and moves in the same plane along a direction parallel and / or perpendicular to the flow line direction of the first flow line 1 through the horizontal transfer module 16.

[0101] The vertical transfer module 17 (which can be a cylinder, a lead screw sleeve mechanism, an electric push rod, etc.) has a lifting end, which is the execution end of the transfer module. Each pickup device 18 is arranged one-to-one with each bin 7. The pickup device 18 moves in a direction perpendicular to the plane of the working position 5 through the vertical transfer module 17

[0102] In some embodiments, the horizontal transfer module 16 includes a second track 23 and a pair of first tracks 24 arranged directly above the surface of the cabinet 2 (both the second track 23 and the first track 24 can be a cylinder, a lead screw sleeve mechanism, an electric push rod, etc.).

[0103] The second track 23 is slidingly arranged between the two first tracks 24. In a top view, the first track 24 is perpendicular to the flow line direction of the first flow line 1; the second track 23 is parallel to the flow line direction of the first flow line 1.

[0104] The second track 23 reciprocates above the first flow line 1 and above all the bins 7 through the first track 24.

[0105] Since the pickup device 18 can move in the same plane along a direction parallel and / or perpendicular to the flow line direction of the first flow line 1 through the above design, the pickup device 18 can reciprocate above the bin 7 and above the carrying position 6 with or without the steel sheet 9.

[0106] Specifically, when the horizontal transfer module 16 is started, the second track 23 moves above the first flow line 1 through the first track 24, and the movement range covers the positions of all the bins 7. At this time, the pickup device 18 can move in a direction parallel or perpendicular to the first flow line 1 with the help of the second track 23. This design ensures that the pickup device 18 can flexibly extract the steel sheet 9 from the bin 7 and transport it above the carrying position 6 or other working stations.

[0107] Throughout the process, the pickup device 18 can choose to carry the steel sheet 9 or be empty (when empty, it means that the pickup device 18 is taking the steel sheet 9). When it is necessary to carry the steel sheet 9, the pickup device 18 will accurately align with the bin 7, lower to the appropriate height to grab the steel sheet 9, and then transport it to above the carrying position 6 along the planned path. In the process of placing the steel sheet 9, the pickup device 18 lowers again to accurately place the steel sheet 9 on the carrying position 6.

[0108] In some embodiments, the vertical transfer module 17 is arranged on the second track 23, and the vertical transfer module 17 moves along the flow direction parallel to the first flow line 1 through the second track 23;

[0109] The lifting end of the vertical transfer module 17 is provided with a plurality of fixed tables 25, and the lower end of each fixed table 25 is provided with a mounting plate 30, and each mounting plate 30 is connected with each pickup 18 one by one.

[0110] Through the above design, the pickup 18 can be lifted from directly above the hopper 7 to take the steel sheet 9, or lifted from directly above the bearing position 6 to put the steel sheet 9.

[0111] That is, the vertical transfer module 17 moves through the second track 23 and is positioned directly above the hopper 7 or the bearing position 6. Once it reaches the specified position, the lifting end of the vertical transfer module 17 starts to work. At this time, the fixed table 25 realizes the lifting operation of the pickup 18 by controlling the up and down movement of the mounting plate 30.

[0112] Specifically, when the pickup 18 is positioned directly above the hopper 7, the lifting end is lowered, and the pickup 18 is lowered into the hopper 7 to accurately grasp the steel sheet 9. After the grasping action is completed, the lifting end is raised to lift the pickup 18 back to the operating plane together with the steel sheet 9. Subsequently, the vertical transfer module 17 moves along the second track 23 to transport the steel sheet 9 to the position directly above the target bearing position 6.

[0113] After reaching the bearing position 6, the lifting end is started again, and the pickup 18 is lowered with the same accuracy to place the steel sheet 9 at the predetermined position. After the placement action is completed, the pickup 18 is raised to the initial position, ready for the next pickup and placement operation.

[0114] In some embodiments, the first flow line 1 includes two third tracks 27 positioned and connected on the upper surface of the workbench, and the two third tracks 27 are symmetrically and distantly arranged.

[0115] In some embodiments, the first flow line 1 further includes a pair of stop modules 28 arranged between the two third tracks 27, and the two stop modules 28 are symmetrically arranged with the symmetric axis of the two third tracks 27 as the reference, and the stop modules 28 are provided with lifting stop ends 29, and when the carrier is in the working position 5, the lifting stop ends 29 are configured to act on the end of the carrier.

[0116] Through the above design, when the carrier enters the appropriate position in the working position 5, the lifting stop ends 29 on the stop modules 28 can limit the position, preventing the carrier from moving too far.

[0117] Working principle:

[0118] The two steel sheets 9 are stacked in the two hoppers 7 respectively, and when the steel sheet 9 adhering operation is performed, the two taking devices 18 are directly driven by the transfer module to adsorb one steel sheet 9 from the two primary positioning areas respectively (the primary positioning process is that at least one first cylinder 19 is arranged on two adjacent surfaces of the four surfaces of the periphery of the hopper 7, and the moving end of the first cylinder 19 penetrates into the hopper 7 during work to position the steel sheet 9 once), and the two steel sheets 9 are moved to the two secondary positioning areas 15 respectively to realize secondary positioning (the secondary positioning process is that after the steel sheet 9 is preliminarily positioned, the taking device 18 extracts the steel sheet 9 from the storage groove 8 and moves to the upper side of the secondary positioning area 15. Then, during the placing process, the positioning column 21 automatically inserts into the positioning hole 22. After the positioning column 21 is completely inserted into the positioning hole 22, the steel sheet 9 is firmly fixed in the secondary positioning area 15), and then the two taking devices 18 adsorb the two steel sheets 9 that have completed secondary positioning and move the steel sheets 9 to adhere to the surface of the circuit board on the carrier in the working position 5.

[0119] In this way, one steel sheet 9 positioning operation is completed.

[0120] Then, the jacking module 10 pushes the stacked steel sheets 9 from the bottom of the hopper 7 to lift up, and the lifted steel sheets 9 are in the primary positioning area, so that the positioning operation can be cycled.

[0121] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A multi-head automatic steel sheet feeding device, the steel sheet feeding device is arranged on a cabinet (2) and used for attaching steel sheets (9) on the surface of a circuit board on a carrier, characterized in that: the steel sheet feeding device comprises a first flow line (1), a bin (7), a jacking mechanism (4), a positioning mechanism and a product taking mechanism (3) arranged on the cabinet (2); the first flow line (1) is provided with a working position (5), the steel sheets (9) are transferred to the working position (5) to perform the attaching operation of the steel sheets (9), and the surface of the carrier is provided with a plurality of carrying positions (6) for carrying the same type or different types of steel sheets (9); a plurality of the bins (7) are arranged along the flow direction of the first flow line (1), and each bin (7) is provided with a storage groove (8) for stacking the carried steel sheets (9); the jacking mechanism (4) comprises a jacking module (10) for simultaneously jacking each steel sheet (9) in each storage groove (8); the positioning mechanism comprises a first positioning module (12) and a second positioning module (13), and the first positioning module (12) and the second positioning module (13) are arranged on the side of the bin (7); the first positioning module (12) has a movable end penetrating into the bin (7) and used for abutting against the steel sheets (9) in the bin (7) to perform primary positioning, and a region of the bin (7) positioned by the first positioning module (12) is defined as a primary positioning region; the second positioning module (13) is provided with a storage plate (14), the storage plate (14) is provided with a secondary positioning region (15), and the secondary positioning region (15) is matched with the shape of the steel sheets (9); the product taking mechanism (3) comprises a transfer module and a product taking device (18), the transfer module is connected with a plurality of the product taking devices (18), the transfer module drives the plurality of the product taking devices (18) to grab / absorb the steel sheets (9) from the primary positioning regions, transfer the steel sheets (9) to the secondary positioning region (15), and then drive the plurality of the product taking devices (18) to grab / absorb the steel sheets (9) from the secondary positioning region (15) and transfer the steel sheets (9) to the surface of the circuit board on the carrier located at the working position (5). The first positioning module (12) comprises at least one first cylinder (19) connected to each of the adjacent two sides of the bin (7). The second positioning module (13) comprises a second cylinder (20) connected to the side of the bin (7), the piston rod of the second cylinder (20) is provided with a set distance from the side of the bin (7), the storage plate (14) is connected to the end of the piston rod in the horizontal direction, the secondary positioning region (15) is a slot matched with the shape of the steel sheets (9), and the secondary positioning region (15) is arranged on the surface of the storage plate (14) away from the bin (7). The piston rod has an extended state and a retracted state. After the steel sheets (9) in the bin (7) are positioned by abutting, ​ ​ ​ 2. The multiple head automatic sheet feeding device according to claim 1, characterized in that: ​ 3. The multiple head automatic sheet feeding device according to claim 1, wherein: ​ ​ ​ In the extended state of the piston column, the storage plate (14) blocks the storage groove (8), the secondary positioning area (15) is directly above the storage groove (8), and the steel sheet (9) is transferred to the secondary positioning area (15) through the taking device (18); In the retracted state of the piston column, the steel sheet (9) in the secondary positioning area (15) is transferred to the bearing position (6) through the taking device (18), and the storage plate (14) is separated from the notch of the storage groove (8).

4. The multiple head automatic sheet feeding device according to claim 1, wherein: Both ends of the steel sheet (9) are provided with positioning holes (22); The secondary positioning area (15) is provided with a positioning column (21), and when the steel sheet (9) is transferred to the secondary positioning area (15), the positioning column (21) is configured to act on the positioning hole (22).

5. The multiple head automatic sheet feeding device according to claim 1, wherein: The transfer module includes a horizontal transfer module (16) and a vertical transfer module (17); The horizontal transfer module (16) is arranged above the first flow line (1) and is positioned and connected with the cabinet (2), and the vertical transfer module (17) is arranged on the horizontal transfer module (16). The vertical transfer module (17) moves in the same plane along the flow direction parallel and / or perpendicular to the first flow line (1) through the horizontal transfer module (16). The vertical transfer module (17) has a lifting end, which is the execution end of the transfer module. Each taking device (18) is arranged one-to-one with each bin (7). The taking device (18) moves in a direction perpendicular to the plane where the working position (5) is located through the vertical transfer module (17).

6. The multiple head automatic sheet feeding device according to claim 5, wherein: The horizontal transfer module (16) includes a second track (23) and a pair of first tracks (24) arranged directly above the surface of the cabinet (2); The second track (23) is slidably arranged between the two first tracks (24). In a top view, the first track (24) is perpendicular to the flow direction of the first flow line (1), and the second track (23) is parallel to the flow direction of the first flow line (1). The second track (23) reciprocates above the first flow line (1) and above all the bins (7) through the first track (24).

7. The multiple head automatic tabber of claim 6 wherein: The vertical transfer module (17) is arranged on the second track (23), and the vertical transfer module (17) moves along the flow direction parallel to the first flow line (1) through the second track (23). The lifting end of the vertical transfer module (17) is provided with a plurality of fixed tables (25), and the lower end of each fixed table (25) is provided with a mounting plate (30). Each mounting plate (30) is connected one-to-one with each taking device (18).

8. The multiple head automatic tabber of claim 7 wherein: The taking device (18) includes a plurality of fixed suction cups (26) arranged at a distance and uniformly on the mounting plate (30).

9. The multiple head automatic sheet feeding device according to claim 1, wherein: The first flow line (1) includes two third tracks (27) positioned and connected on the upper surface of the workbench. The two third tracks (27) are symmetrically and distantly arranged.

10. The multiple head automatic tabber of claim 9 wherein: The first flow line (1) further comprises a pair of blocking modules (28) disposed between two third tracks (27), the two blocking modules (28) being symmetrically disposed with respect to the symmetry axis of the two third tracks (27), the blocking modules (28) having lifting blocking ends (29) configured to act on the end of the carrier when the carrier is in the working position (5).

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