Anti-blocking and material-guiding injection molding machine for processing circuit board

Abstract

The utility model relates to the field of circuit board injection molding machines, in particular to an anti-blocking and material-guiding injection molding machine for processing a circuit board, which comprises an injection molding machine rack, and the lower mold is mounted in the upper part of the injection molding machine rack. According to the anti-blocking and material-guiding injection molding machine for processing the circuit board, due to the arrangement of the conveying anti-blocking mechanism, the anti-blocking effect can be achieved in the conveying process of hot melt adhesive, real injection molding is prevented from being influenced by blocking, the hot melt adhesive in the feeding barrel enters a conveying opening, then a servo motor switch is turned on to drive a spiral blade to rotate, and the conveying opening is closed. Meanwhile, a heating element is arranged on the inner side of the conveying bin, the hot melt adhesive in the conveying bin is continuously heated again, solidification is avoided, then the hot melt adhesive is conveyed into the injection molding head, and the hot melt adhesive is conveyed into the injection molding head by turning on a micro air cylinder switch. And the piston head is pushed to perform injection molding on the hot melt adhesive in the injection molding head.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of circuit board injection molding machine, concretely relates to a kind of injection molding machine for preventing plugging of material guiding of circuit board processing. BACKGROUND

[0002] Circuit board injection molding machine is specially designed for manufacturing circuit board related components, and circuit board injection molding machine includes low-pressure injection molding machine, low-pressure injection molding technology, which uses lower injection pressure (usually in 1~60 kg / cm2 or 1.5~40 bar range) to inject molten hot melt glue into mold cavity, and makes molten glue quickly cool and solidify in a short period (5~50 seconds). This process realizes the encapsulation and protection of precision electronic components such as circuit boards.

[0003] The existing injection molding machine for circuit board processing lacks anti-blocking design when conveying hot melt glue. Generally, molten hot melt glue is conveyed through a conveying pipe in advance, but when not used in the middle, hot melt glue will remain in the conveying pipe, causing hot melt glue to solidify and resulting in blockage.

[0004] Therefore, it is necessary to invent an injection molding machine for preventing plugging of material guiding of circuit board processing to solve the above problems. INVENTION CONTENTS

[0005] The utility model aims at providing an injection molding machine for preventing plugging of material guiding of circuit board processing. Hot melt glue in the feeding barrel enters the conveying port, then the servo motor switch is opened to drive the spiral blade to rotate, conveying hot melt glue. This can avoid blockage. A heating element is arranged on the inner side of the conveying bin to continuously heat the hot melt glue in the conveying bin, avoiding solidification. Then the hot melt glue is conveyed into the injection head. The micro pneumatic cylinder switch is opened to push the piston head to inject the hot melt glue in the injection head. The piston head is pushed and extruded, which can facilitate conveying and avoid blockage. This solves the problem of lack of anti-blocking design when conveying hot melt glue in the existing injection molding machine for circuit board processing. Generally, molten hot melt glue is conveyed through a conveying pipe in advance, but when not used in the middle, hot melt glue will remain in the conveying pipe, causing hot melt glue to solidify and resulting in blockage.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: an injection molding machine for preventing plugging of material guiding of circuit board processing, comprising an injection molding machine frame;

[0007] Lower mold, install inside above injection molding machine frame, for placing circuit board, the inside four around of injection molding machine frame is fixedly connected with first slide rod, the outside of first slide rod is slidably connected with moving plate, the upper side of moving plate is fixedly connected with telescopic pneumatic cylinder, the lower side of telescopic pneumatic cylinder is fixedly provided with upper mold, the rear side of injection molding machine frame is fixedly connected with base, the upper side of base is fixedly provided with protective cover, the upper side of base is slidably connected with conveying bin, the upper side of conveying bin is fixedly connected with feeding barrel;

[0008] Stirring anti-blocking mechanism, provided inside the feeding barrel, for stirring and preventing blocking, the inner cavity of the feeding barrel is inlaid with a heating pipe, a conveying port is formed in the upper side of the conveying bin, the conveying port is in communication with the lower side of the feeding barrel, and the lower side of the conveying bin is fixedly connected with an injection head;

[0009] Conveying anti-blocking mechanism, provided inside the conveying bin, for conveying and preventing blocking of hot melt adhesive, the conveying anti-blocking mechanism comprises a servo motor, the servo motor is fixedly provided inside the conveying bin, the output end of the servo motor is fixedly connected with a spiral blade, and the inner side of the conveying bin is fixedly provided with a heating element.

[0010] Preferably, the inner side of the base is fixedly connected with a second slide rod, the outer side of the second slide rod is slidably connected with a sliding seat, the conveying bin is fixed above the sliding seat, the rear side of the base is fixedly provided with a push pneumatic cylinder, the output end of the push pneumatic cylinder is fixedly connected with a push rod, and the conveying bin is fixedly connected with the push rod.

[0011] Preferably, the stirring anti-blocking mechanism comprises a support, the support is fixed to the inner side of the feeding barrel, the upper side of the support is fixedly provided with a driving motor, the output end of the driving motor is fixedly connected with a transmission rod, and the outer side of the transmission rod is fixedly connected with stirring blades.

[0012] Preferably, the outer sides of the transmission rods are fixedly connected with fixed rods, the other ends of the fixed rods are fixedly connected with hanging plates, and the hanging plates are tightly attached to the inner walls of the feeding barrels.

[0013] Preferably, the lower front side of the conveying bin is in communication with the upper side of the injection head, the rear side of the injection head in the conveying bin is fixedly connected with a micro pneumatic cylinder, and the output end of the micro pneumatic cylinder is fixedly connected with a piston head.

[0014] Preferably, the piston head is tightly attached to the inner side of the injection head, and the piston head is located at the rear side of the conveying bin in communication with the injection head.

[0015] In the above technical solution, the technical effects and advantages of the present application are provided:

[0016] 1. The setting of the conveying anti-blocking mechanism can prevent blockage during the conveying of hot melt adhesive, avoid the influence of real injection molding caused by blockage, and the hot melt adhesive in the feeding barrel enters the conveying port, then the servo motor switch is opened to drive the spiral blade to rotate, and the hot melt adhesive is conveyed, which can avoid blockage, and the heating element is arranged on the inner side of the conveying bin to continue to heat the hot melt adhesive in the conveying bin, avoid solidification, and then the hot melt adhesive is conveyed into the injection head, the micro pneumatic cylinder switch is opened, the piston head pushes the hot melt adhesive in the injection head to be injection molded, and the piston head is pushed and extruded, which can facilitate conveying and avoid blockage.

[0017] 2. The setting of the stirring anti-blocking mechanism can stir and heat the hot melt adhesive, avoid blockage and solidification in the feeding barrel, pour the hot melt adhesive into the feeding barrel, open the driving motor switch to drive the transmission rod and the stirring blade to stir the hot melt adhesive in the feeding barrel, and the heating pipe in the feeding barrel heats and melts the hot melt adhesive to avoid solidification and blockage. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art according to these drawings.

[0019] Figure 1 It is the overall structure schematic diagram of the utility model;

[0020] Figure 2 It is the protective cover structure schematic diagram of the utility model;

[0021] Figure 3 It is the base structure schematic diagram of the utility model;

[0022] Figure 4 It is the stirring anti-blocking mechanism structure schematic diagram of the utility model;

[0023] Figure 5 It is the conveying anti-blocking mechanism structure schematic diagram of the utility model.

[0024] Explanation of reference signs:

[0025] 1. Injection molding machine frame; 2. Lower mold; 3. First slide bar; 4. Moving plate; 5. Telescopic cylinder; 6. Upper mold; 7. Base; 8. Protective cover; 9. Second slide bar; 10. Slide seat; 11. Conveying chamber; 12. Pushing cylinder; 13. Push rod; 14. Feeding hopper; 15. Stirring anti-blocking mechanism; 1501. Support; 1502. Drive motor; 1503. Transmission rod; 1504. Stirring blade; 1505. Fixing rod; 1506. Hanging plate; 16. Heating tube; 17. Conveying port; 18. Conveying anti-blocking mechanism; 1801. Servo motor; 1802. Spiral blade; 1803. Heating element; 1804. Miniature cylinder; 1805. Piston head; 19. Injection head. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] This utility model provides, for example Figures 1-5 The circuit board processing injection molding machine shown includes an injection molding machine frame 1 with anti-clogging material guiding.

[0028] The lower mold 2 is installed inside the upper part of the injection molding machine frame 1 and is used to place the circuit board. The inner perimeter of the injection molding machine frame 1 is fixedly connected to the first slide rod 3. The outer side of the first slide rod 3 is slidably connected to the moving plate 4. The upper part of the moving plate 4 is fixedly connected to the telescopic cylinder 5. The lower part of the telescopic cylinder 5 is fixedly installed to the lower part of the upper mold 6. The rear side of the injection molding machine frame 1 is fixedly connected to the base 7. The upper part of the base 7 is fixedly installed to the protective cover 8. The upper part of the base 7 is slidably connected to the conveying chamber 11. The upper part of the conveying chamber 11 is fixedly connected to the feed hopper 14.

[0029] A stirring anti-blocking mechanism 15 is set inside the feeding barrel 14 for stirring anti-blocking. A heating tube 16 is embedded in the inner cavity of the feeding barrel 14. A conveying port 17 is opened above the conveying chamber 11. The conveying port 17 is connected to the bottom of the feeding barrel 14. An injection head 19 is fixedly connected to the bottom of the conveying chamber 11.

[0030] The conveying anti-blocking mechanism 18 is arranged inside the conveying bin 11 and is used for conveying the hot melt adhesive. The conveying anti-blocking mechanism 18 comprises a servo motor 1801 which is fixedly arranged inside the conveying bin 11. The output end of the servo motor 1801 is fixedly connected with a spiral blade 1802. A heating element 1803 is fixedly arranged inside the conveying bin 11. The hot melt adhesive in the feeding barrel 14 enters the conveying port 17. Then the servo motor 1801 is turned on to drive the spiral blade 1802 to rotate, so as to convey the hot melt adhesive. In this way, the blockage can be avoided. At the same time, the heating element 1803 is arranged inside the conveying bin 11, so as to continuously heat the hot melt adhesive in the conveying bin 11, thereby avoiding solidification. Then the hot melt adhesive is conveyed into the injection head 19. The micro pneumatic cylinder 1804 is turned on to drive the piston head 1805 to inject the hot melt adhesive in the injection head 19. The piston head 1805 is pushed and extruded, so as to facilitate the conveying and avoid the blockage.

[0031] As shown in Figure 2 and Figure 3 , the second slide rod 9 is fixedly connected inside the base 7. The slide seat 10 is slidingly connected outside the second slide rod 9. The conveying bin 11 is fixed above the slide seat 10. The push cylinder 12 is fixedly arranged at the rear side of the base 7. The push rod 13 is fixedly connected with the output end of the push cylinder 12. The conveying bin 11 is fixedly connected with the push rod 13. The push cylinder 12 is turned on to drive the entire conveying bin 11 and the slide seat 10 to slide outside the second slide rod 9 in the base 7. The conveying bin 11 is attached to the injection port of the injection head 19 below the lower mold 2 and the upper mold 6 after they are combined, so as to facilitate the material guiding and conveying.

[0032] As shown in Figure 3 and Figure 4 , the stirring anti-blocking mechanism 15 comprises the bracket 1501 which is fixedly arranged inside the upper side of the feeding barrel 14. The driving motor 1502 is fixedly arranged above the bracket 1501. The output end of the driving motor 1502 is fixedly connected with the transmission rod 1503. The transmission rod 1503 is fixedly connected with the stirring blade 1504. The driving motor 1502 is turned on to drive the transmission rod 1503 and the stirring blade 1504 to stir the hot melt adhesive in the feeding barrel 14. The heating pipe 16 in the feeding barrel 14 is used for heating and melting the hot melt adhesive, thereby avoiding solidification and blockage.

[0033] As shown in Figure 4As shown, the outer two sides of the transmission rod 1503 are fixedly connected with the fixed rod 1505, the other end of the fixed rod 1505 is fixedly connected with the hanging plate 1506, the hanging plate 1506 is close to the inner wall of the feeding barrel 14, when the transmission rod 1503 rotates through the driving motor 1502, the two sides of the fixed rod 1505 and the hanging plate 1506 are also driven, so that the hanging plate 1506 scrapes off the hot melt adhesive on the inner wall of the feeding barrel 14, avoiding remaining on the inner wall.

[0034] As shown in Figure 3 and Figure 5 As shown, the front lower side of the conveying bin 11 is connected with the upper side of the injection head 19, the rear side of the conveying bin 11 of the injection head 19 is fixedly connected with the micro-cylinder 1804, the output end of the micro-cylinder 1804 is fixedly connected with the piston head 1805, by opening the micro-cylinder 1804 switch, the piston head 1805 is pushed to inject the hot melt adhesive inside the injection head 19, by the piston head 1805 pushing and extruding mode, not only can facilitate the conveying, but also avoid causing the blockage.

[0035] As shown in Figure 5 As shown, the piston head 1805 is close to the inside of the injection head 19, the piston head 1805 is located at the rear side of the conveying bin 11 and the injection head 19, the piston head 1805 is arranged at the rear side of the conveying bin 11 and the injection head 19, preventing the blockage of the hole slot connected with each other, and also can inject the hot melt adhesive into the lower mold 2 and the upper mold 6 by the pushing mode.

[0036] The utility model discloses a working principle: first, connect the external power supply, then pour hot melt adhesive into the feeding barrel 14, drive the transmission rod 1503 and the stirring blade 1504 to the inside hot melt adhesive of feeding barrel 14 are stirred through the opening drive motor 1502 switch, cooperate the heating pipe 16 inside the opening feeding barrel 14 to hot melt adhesive heating melting, avoid solidification and block, after the circuit board that needs injection molding is placed in lower mould 2 inside, then open telescopic pneumatic cylinder 5 switch, push mobile plate 4 and the upper mould 6 below and lower mould 2 merge, then open the push cylinder 12 switch behind the rear seat 7 behind injection molding machine rack 1 rear side, push conveying bin 11 and slide 10 slide in the base 7, so that the injection head 19 of conveying bin 11 front lower side inserts the hole inside lower mould 2 and upper mould 6 and is injected, then the melted hot melt adhesive in the feeding barrel 14 enters conveying bin 11 from the delivery port 17, next, open servo motor 1801 switch and drive helical blade 1802 rotation, hot melt adhesive conveying, not only play conveying, also avoid the situation of causing blockage, simultaneously open the heating element 1803 switch of conveying bin 11 inside setting, continue to heat the hot melt adhesive in conveying bin 11 again, avoid solidification and block, then conveying hot melt adhesive enters injection head 19, through the opening micro pneumatic cylinder 1804 switch, push piston head 1805 hot melt adhesive in injection head 19 extrusion conveying, extrude hot melt adhesive from injection head 19 and carry out injection molding in the circuit board inside lower mould 2 and upper mould 6, finally, after injection molding, close push cylinder 12 switch, slide conveying bin 11 to the rear side, next, close telescopic pneumatic cylinder 5 switch again, drive mobile plate 4 and upper mould 6 lift, and separate with lower mould 2, then the staff again injection molding circuit board goes to place, again continue to put in the next circuit board and carry out injection molding, finally, when not using the device, close all electric appliances, cut off the external power supply, and the use process of the anti-blocking guide's circuit board processing injection molding machine is completed like this.

[0037] The utility model discloses a working principle: first, connect the external power supply, then pour hot melt adhesive into the feeding barrel 14, drive the transmission rod 1503 and the stirring blade 1504 to the inside hot melt adhesive of feeding barrel 14 are stirred through the opening drive motor 1502 switch, cooperate the heating pipe 16 inside the opening feeding barrel 14 to hot melt adhesive heating melting, avoid solidification and block, after the circuit board that needs injection molding is placed in lower mould 2 inside, then open telescopic pneumatic cylinder 5 switch, push mobile plate 4 and the upper mould 6 below and lower mould 2 merge, then open the push cylinder 12 switch behind the rear seat 7 behind injection molding machine rack 1 rear side, push conveying bin 11 and slide 10 slide in the base 7, so that the injection head 19 of conveying bin 11 front lower side inserts the hole inside lower mould 2 and upper mould 6 and is injected, then the melted hot melt adhesive in the feeding barrel 14 enters conveying bin 11 from the delivery port 17, next, open servo motor 1801 switch and drive helical blade 1802 rotation, hot melt adhesive conveying, not only play conveying, also avoid the situation of causing blockage, simultaneously open the heating element 1803 switch of conveying bin 11 inside setting, continue to heat the hot melt adhesive in conveying bin 11 again, avoid solidification and block, then conveying hot melt adhesive enters injection head 19, through the opening micro pneumatic cylinder 1804 switch, push piston head 1805 hot melt adhesive in injection head 19 extrusion conveying, extrude hot melt adhesive from injection head 19 and carry out injection molding in the circuit board inside lower mould 2 and upper mould 6, finally, after injection molding, close push cylinder 12 switch, slide conveying bin 11 to the rear side, next, close telescopic pneumatic cylinder 5 switch again, drive mobile plate 4 and upper mould 6 lift, and separate with lower mould 2, then the staff again injection molding circuit board goes to place, again continue to put in the next circuit board and carry out injection molding, finally, when not using the device, close all electric appliances, cut off the external power supply, and the use process of the anti-blocking guide's circuit board processing injection molding machine is completed like this.

Claims

1. An injection molding machine for circuit board processing with anti-clogging material guiding, characterized in that: Including the injection molding machine frame (1); The lower mold (2) is installed inside the upper part of the injection molding machine frame (1) and is used to place the circuit board. The inner perimeter of the injection molding machine frame (1) is fixedly connected to the first slide rod (3). The outer side of the first slide rod (3) is slidably connected to the moving plate (4). The upper part of the moving plate (4) is fixedly connected to the telescopic cylinder (5). The lower part of the telescopic cylinder (5) is fixedly set to the upper mold (6). The rear side of the injection molding machine frame (1) is fixedly connected to the base (7). The upper part of the base (7) is fixedly set to the protective cover (8). The upper part of the base (7) is slidably connected to the conveying chamber (11). The upper part of the conveying chamber (11) is fixedly connected to the feeding barrel (14). A stirring anti-blocking mechanism (15) is set inside the feeding barrel (14) for stirring anti-blocking. The inner cavity of the feeding barrel (14) is inlaid with a heating tube (16). A conveying port (17) is opened above the conveying chamber (11). The conveying port (17) is connected to the bottom of the feeding barrel (14). An injection head (19) is fixedly connected to the bottom of the conveying chamber (11). A conveying anti-blocking mechanism (18) is installed inside the conveying chamber (11) for conveying anti-blocking hot melt adhesive. The conveying anti-blocking mechanism (18) includes a servo motor (1801), which is fixedly installed inside the conveying chamber (11). The output end of the servo motor (1801) is fixedly connected to a spiral blade (1802). A heating element (1803) is fixedly installed inside the conveying chamber (11).

2. The injection molding machine for circuit board processing with anti-clogging material guiding as described in claim 1, characterized in that: The base (7) is fixedly connected to a second slide rod (9) inside, and a slide block (10) is slidably connected to the outside of the second slide rod (9). The conveying chamber (11) is fixed above the slide block (10). A push cylinder (12) is fixedly installed on the rear side of the base (7). A push rod (13) is fixedly connected to the output end of the push cylinder (12). The conveying chamber (11) is fixedly connected to the push rod (13).

3. The injection molding machine for circuit board processing with anti-clogging material guiding as described in claim 1, characterized in that: The stirring anti-clogging mechanism (15) includes a bracket (1501), which is fixed inside the upper side of the feed hopper (14). A drive motor (1502) is fixedly installed above the bracket (1501). A transmission rod (1503) is fixedly connected to the output end of the drive motor (1502). Stirring blades (1504) are fixedly connected to the outside of the transmission rod (1503).

4. The injection molding machine for circuit board processing with anti-clogging material guiding as described in claim 3, characterized in that: The transmission rod (1503) is fixedly connected to two external sides by a fixing rod (1505), and the other end of the fixing rod (1505) is fixedly connected to a hanging plate (1506). The hanging plate (1506) is in close contact with the inner wall of the feed barrel (14).

5. The injection molding machine for circuit board processing with anti-clogging material guiding as described in claim 1, characterized in that: The lower front side of the delivery chamber (11) is connected to the upper side of the injection head (19). A miniature cylinder (1804) is fixedly connected to the rear side of the delivery chamber (11) of the injection head (19). A piston head (1805) is fixedly connected to the output end of the miniature cylinder (1804).

6. The injection molding machine for circuit board processing with anti-clogging material guiding as described in claim 5, characterized in that: The piston head (1805) is attached to the inside of the injection head (19), and the piston head (1805) is located on the rear side where the delivery chamber (11) is connected to the injection head (19).

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