Glue pouring device for lead frame

Abstract

The utility model discloses a lead frame glue filling device, which belongs to the field of lead frame glue filling and comprises a shell, a glue filling assembly and a vacuumizing assembly, one side of the shell is connected with a conveying assembly, the other side of the shell is fixedly connected with a motor, the outer side of an output shaft of the motor is fixedly connected with a first connecting rod and a second connecting rod respectively, and the first connecting rod and the second connecting rod are connected with the vacuumizing assembly. One end of the first connecting rod and one end of the second connecting rod are each rotationally connected with a transverse rack, and the lower ends of the two transverse racks are each connected with a gear assembly. According to the glue filling device for the lead frame, the glue filling assembly, the vacuumizing assembly and the conveying assembly are arranged, the glue filling assembly, the vacuumizing assembly and the conveying assembly are driven to move by starting the motor, manual operation is replaced, the glue filling efficiency of the lead frame is improved, and therefore the large-scale and high-precision production requirements are met; and by using the resistance wire plate, the glue barrel is heated, glue in the glue barrel is prevented from being solidified, and waste of the glue is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to lead frame glue pouring field especially relates to a lead frame glue pouring device. BACKGROUND

[0002] Glue pouring refers to pouring liquid polyurethane compound into devices with electronic components and circuit by mechanical or manual method, and curing into heat-resistant high polymer insulating material with excellent performance under normal temperature or heating condition.

[0003] However, the lead frame glue pouring device in the prior art has the following problems to be improved:

[0004] 1. The traditional glue pouring method often relies on manual operation, which has low production efficiency and cannot meet the production demand of large scale and high precision.

[0005] 2. In the prior art, if the glue is not used for a long time, it will solidify. At this time, the glue pouring device needs to be cleaned and refilled, which causes waste. UTILITY MODEL CONTENTS

[0006] The utility model aims at solving the problems in the prior art and provides a lead frame glue pouring device.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme: a casing, a glue pouring assembly, a vacuum pumping assembly, one end of the outer side of the casing is connected with the glue pouring assembly, the other end of the outer side of the casing is connected with the vacuum pumping assembly, one side of the casing is connected with a conveying assembly, the other side of the casing is fixedly connected with a motor, the output shaft of the motor is fixedly connected with a connecting rod one and a connecting rod two respectively, one end of the connecting rod one and the connecting rod two is rotatably connected with a transverse rack, the lower end of the two groups of transverse racks is connected with a gear assembly.

[0008] The gear assembly comprises a central gear rotatably connected to the other side of the casing, a large transmission gear, a small transmission gear and a side gear, and further comprises a support fixedly connected to the other side of the casing and a longitudinal rack slidably connected to the inside of the support.

[0009] Further description of the above technical scheme:

[0010] The glue pouring assembly comprises a fixed plate, a resistance wire plate and a glue barrel, the fixed plate is fixedly connected to the upper end of one group of longitudinal racks, one side of the fixed plate is fixedly connected with an extension block, one side of the lower end of the extension block is fixedly connected with a glue pouring gun head, the glue barrel is fixedly connected to the inside of the casing, two groups of resistance wire plates are connected to the outside of the glue barrel, a glue pipe is in communication between the glue pouring gun head and the glue barrel, and a control valve is sleeved on the outside of the glue pipe.

[0011] As a further description of the above technical solutions:

[0012] The vacuum extraction assembly comprises a fixed rod, a rotating rod, a vacuum cover and a vacuum pump, the fixed rod is fixedly connected to the upper end of the other set of longitudinal racks, a limiting groove is formed in the lower end of one side of the rotating rod, a limiting ball rod is connected to the upper end of the fixed rod, the limiting ball rod is slidably connected to the inside of the limiting groove, a connecting block is rotatably connected to the other side of the rotating rod, two sets of fixed blocks are fixedly connected to the two sides of the connecting block, and the two sets of fixed blocks are fixedly connected to the upper end of the vacuum cover, an air extraction pipe is connected to the upper end of the vacuum cover, the air extraction pipe is connected to one side of the vacuum pump, and the vacuum pump is fixedly connected to the upper end of the shell.

[0013] As a further description of the above technical solutions:

[0014] The conveying assembly comprises a support plate and a sliding block, the support plate is slidably connected to the inside of the shell, one side of the support plate is rotatably connected to a connecting rod three, and the connecting rod three is rotatably connected to the outside of the sliding block.

[0015] As a further description of the above technical solutions:

[0016] The conveying assembly further comprises a sliding groove and a central rotating shaft, the sliding groove is formed in the outside of the shell, the sliding block is slidably connected to the inside of the sliding groove, a limiting plate is arranged on the outside of the sliding block, the central rotating shaft is fixedly connected to one side of the limiting plate, and the central rotating shaft is fixedly connected to one set of central gears.

[0017] As a further description of the above technical solutions:

[0018] The longitudinal racks are meshed with the central gears, the central gears are meshed with the large transmission gears, the large transmission gears are meshed with the small transmission gears, and the small transmission gears are meshed with the edge gears.

[0019] As a further description of the above technical solutions:

[0020] The other side of the shell is rotatably connected to a limiting seat, and the longitudinal racks are slidably connected to the inside of the limiting seat.

[0021] The utility model has the advantages of the following beneficial effects:

[0022] 1、The lead frame glue filling device is provided with a glue filling assembly, a vacuum extraction assembly and a conveying assembly, the glue filling assembly, the vacuum extraction assembly and the conveying assembly are driven to move by starting a motor, manual operation is replaced, the glue filling efficiency of the lead frame is improved, and large-scale and high-precision production requirements are met.

[0023] 2、The lead frame glue filling device, through the use of resistance wire plate, the glue barrel is heated, the glue solidification in the glue barrel is avoided, and the waste of glue is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a whole structure schematic diagram of a lead frame glue filling device provided by the embodiment of the application.

[0025] Figure 2 It is an explosion view of a glue filling assembly in the lead frame glue filling device provided by the embodiment of the application.

[0026] Figure 3 It is an explosion view of a vacuumizing assembly in the lead frame glue filling device provided by the embodiment of the application.

[0027] Figure 4 It is a structure schematic diagram of a conveying assembly in the lead frame glue filling device provided by the embodiment of the application.

[0028] Figure 5 It is Figure 2 A partial enlarged schematic diagram of the part A in the figure.

[0029] 1, shell; 2, glue filling assembly; 3, vacuumizing assembly; 4, conveying assembly; 5, motor; 6, connecting rod one; 7, transverse rack; 8, center gear; 9, side gear; 10, longitudinal rack; 11, fixed plate; 12, extension block; 13, resistance wire plate; 14, glue barrel; 15, connecting rod two; 16, fixed rod; 17, rotating rod; 18, connecting block; 19, fixed block; 20, vacuum cover; 21, air suction pipe; 22, vacuum pump; 23, support plate; 24, connecting rod three; 25, sliding block; 26, sliding groove; 27, center rotating shaft. DETAILED DESCRIPTION

[0030] The technical scheme in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the application.

[0031] As Figures 1-4As shown, the utility model provides an embodiment: including shell 1, glue filling subassembly 2, vacuumizing subassembly 3, one end of shell 1 outside is connected with glue filling subassembly 2, the other end of shell 1 outside is connected with vacuumizing subassembly 3, one side of shell 1 is connected with conveying assembly 4, the other side of shell 1 is fixedly connected with motor 5, the output shaft outside of motor 5 is fixedly connected with connecting rod one 6 and connecting rod two 15 respectively, one end of connecting rod one 6 and connecting rod two 15 is rotatably connected with horizontal rack 7, the lower end of two groups of horizontal rack 7 is connected with gear assembly,

[0032] Gear assembly includes the central gear 8 rotatably connected with the other side of shell 1, big transmission gear, small transmission gear and side gear 9, still includes the support piece fixedly connected with the other side of shell 1 and the longitudinal rack 10 slidingly connected with the inside of support piece.

[0033] As Figure 1 、 Figure 2 As shown, in order to realize the glue filling operation of lead frame, improve the glue filling efficiency, the glue filling subassembly 2 of the scheme includes fixed plate 11, resistance wire plate 13, glue bucket 14, the upper end of a group of longitudinal rack 10 is fixedly connected with fixed plate 11, the side of fixed plate 11 is fixedly connected with extension block 12, the side lower end of extension block 12 is fixedly connected with glue gun head, the inside of shell 1 is fixedly connected with glue bucket 14, two groups of resistance wire plate 13 are connected with the outside of glue bucket 14, and glue pipe is communicated between glue gun head and glue bucket 14, and control valve is sleeved with the outside of glue pipe, glue gun can stably do lifting motion under the drive of meshing gear and rack, and glue injection is stable.

[0034] As Figure 1 、 Figure 2 As shown, the vacuumizing subassembly 3 of the scheme includes fixed rod 16, rotating rod 17, vacuum cover 20, vacuum pump 22, the upper end of another group of longitudinal rack 10 is fixedly connected with fixed rod 16, the lower end of one side of rotating rod 17 is provided with limit slot, the upper end of fixed rod 16 is connected with limit ball rod, the inside of limit slot is slidingly connected with limit ball rod, the other side of rotating rod 17 is rotatably connected with connecting block 18, two groups of fixed blocks 19 are fixedly connected with the two sides of connecting block 18, and the upper end of vacuum cover 20 is fixedly connected with two groups of fixed blocks 19, the upper end middle part of vacuum cover 20 is connected with suction pipe 21, suction pipe 21 is connected with one side of vacuum pump 22, and vacuum pump 22 is fixedly connected with the upper end of shell 1, can better discharge the air in the glue sealing.

[0035] As Figure 1 、 Figure 3As shown, the transmission assembly 4 provided in the scheme includes a support plate 23 and a sliding block 25, the support plate 23 is slidingly connected inside the shell 1, and one side of the support plate 23 is rotatably connected with a connecting rod three 24, the connecting rod three 24 is rotatably connected outside the sliding block 25.

[0036] As shown, Figure 1 , Figure 3 As shown, the transmission assembly 4 provided in the scheme further includes a sliding groove 26 and a center rotating shaft 27, the sliding groove 26 is opened outside the shell 1, and the sliding block 25 is slidingly connected inside the sliding groove 26, the outside of the sliding block 25 is sleeved with a limiting plate, the center rotating shaft 27 is fixedly connected with one side of the limiting plate, and the center rotating shaft 27 is fixedly connected with a group of center gears 8, which can simultaneously drive the glue injection gun head to lift and drive the transmission device to move, thereby reducing the number of motors used and improving the degree of automation.

[0037] As shown, Figure 4 The lateral rack 7 is engaged with the center gear 8, the center gear 8 is engaged with the large transmission gear, the large transmission gear is engaged with the small transmission gear, and the small transmission gear is engaged with the edge gear 9, which can stably convey the lead frame that needs to be injected with glue and prevent uneven injection caused by bumps and unevenness.

[0038] As shown, Figure 5 The other side of the shell 1 is rotatably connected with a limiting seat, and the lateral rack 7 is slidingly connected inside the limiting seat.

[0039] Working principle: place the lead frame on the support plate 23, start the motor 5, the connecting rod one 6 and the connecting rod two 15 will make clockwise motion around the output shaft of the motor 5, in turn drive the two groups of lateral racks 7 to drive the center gear 8 to rotate, the center gear 8 drives the longitudinal rack 10 to move upward through the large transmission gear, the small transmission gear and the edge gear 9, the fixed plate 11 drives the glue injection gun head to move upward, the rotating rod 17 drives the vacuum cover 20 to move downward under the action of the gravity of the fixed rod 16 and the vacuum cover 20, and the lead frame is vacuumized, after the vacuumization is completed, the center gear 8 drives the center rotating shaft 27 to rotate, the center rotating shaft 27 drives the limiting plate to rotate, the limiting plate drives the sliding block 25 to slide inside the sliding groove 26, thereby driving the lead frame on the support plate 23 to slide to the lower end of the glue injection gun head, when sliding to the lower side of the glue injection gun head, the motor 5 drives the longitudinal rack 10 to move downward through the connecting rod one 6 and the connecting rod two 15, the lateral rack 7, the center gear 8, the large transmission gear, the small transmission gear and the edge gear 9, so that the glue injection gun head moves downward, opens the control valve, and injects the lead frame, after the injection is completed, the injected lead frame is taken out, and the new lead frame that needs to be injected is placed on the upper end of the support plate 23, the longitudinal rack 10 rises again to realize the cycle work.

[0040] The electrical components in the text are connected with the main controller and 220V mains, and the main controller can be a computer and other conventional known devices that can be controlled, and the detailed description of the known functions and known components is omitted in the specific embodiment of the present disclosure. In order to ensure the compatibility of the device, the operation means used is consistent with the parameters of the market instruments.

[0041] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.

Claims

1. A lead frame glue filling device, characterized in that: The assembly includes a housing (1), a potting assembly (2), and a vacuum assembly (3). The potting assembly (2) is connected to one end of the outer side of the housing (1), and the vacuum assembly (3) is connected to the other end of the outer side of the housing (1). A conveying assembly (4) is connected to one side of the housing (1), and a motor (5) is fixedly connected to the other side of the housing (1). A connecting rod 1 (6) and a connecting rod 2 (15) are fixedly connected to the outer side of the output shaft of the motor (5). A transverse rack (7) is rotatably connected to one end of both the connecting rod 1 (6) and the connecting rod 2 (15). A gear assembly is connected to the lower end of both sets of transverse racks (7). The gear assembly includes a central gear (8), a large transmission gear, a small transmission gear, and a side gear (9) rotatably connected to the other side of the housing (1), and also includes a support member fixedly connected to the other side of the housing (1) and a longitudinal rack (10) slidably connected inside the support member.

2. The lead frame glue filling device according to claim 1, wherein: The glue dispensing assembly (2) includes a fixing plate (11), a resistance wire plate (13), and a glue bucket (14). The fixing plate (11) is fixedly connected to the upper end of a set of longitudinal racks (10). An extension block (12) is fixedly connected to one side of the fixing plate (11). A glue dispensing gun head is fixedly connected to the lower end of one side of the extension block (12). The glue bucket (14) is fixedly connected inside the outer shell (1). Two sets of resistance wire plates (13) are connected to the outside of the glue bucket (14). A glue tube is connected between the glue dispensing gun head and the glue bucket (14). A control valve is sleeved on the outside of the glue tube.

3. The lead frame glue filling device according to claim 1, wherein: The vacuum assembly (3) includes a fixed rod (16), a rotating rod (17), a vacuum hood (20), and a vacuum pump (22). The fixed rod (16) is fixedly connected to the upper end of another set of longitudinal racks (10). A limiting groove is opened at the lower end of one side of the rotating rod (17). A limiting ball is connected to the upper end of the fixed rod (16). The limiting ball is slidably connected inside the limiting groove. A connecting block (18) is rotatably connected to the other side of the rotating rod (17). Two sets of fixed blocks (19) are fixedly connected to both sides of the connecting block (18). Both sets of fixed blocks (19) are fixedly connected to the upper end of the vacuum hood (20). An air extraction pipe (21) is connected to the middle of the upper end of the vacuum hood (20). The air extraction pipe (21) is connected to one side of the vacuum pump (22). The vacuum pump (22) is fixedly connected to the upper end of the outer shell (1).

4. The lead frame glue filling device according to claim 1, wherein: The conveying assembly (4) includes a support plate (23) and a slider (25). The support plate (23) is slidably connected inside the outer shell (1), and a connecting rod three (24) is rotatably connected to one side of the support plate (23). The connecting rod three (24) is rotatably connected to the outside of the slider (25).

5. The lead frame glue filling device according to claim 4, wherein: The conveying assembly (4) further comprises a sliding groove (26) and a central rotating shaft (27), the sliding groove (26) is arranged on the outside of the shell (1), the sliding block (25) is slidingly connected to the inside of the sliding groove (26), the outside of the sliding block (25) is sleeved with a limiting plate, the central rotating shaft (27) is fixedly connected to one side of the limiting plate, and the central rotating shaft (27) is fixedly connected with a group of the central gears (8).

6. The lead frame glue filling device according to claim 1, wherein: The transverse rack (7) is engaged with the central gear (8), the central gear (8) is engaged with a large transmission gear, the large transmission gear is engaged with a small transmission gear, and the small transmission gear is engaged with the side gear (9).

7. The lead frame glue filling device of claim 1, wherein: The other side of the shell (1) is rotationally connected with a limiting seat, and the transverse rack (7) is slidingly connected to the inside of the limiting seat.

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