Pop-up mechanism of straight ejection glue inlet runner

Abstract

The utility model discloses a straight ejector rubber inlet runner ejection mechanism which comprises a straight ejector, an inclined groove is formed in the forming face of the straight ejector, an ejector block is arranged in the inclined groove in a sliding fit mode, and a jacking piece is arranged at the bottom of the ejector block. A runner is formed in one side of the ejector block, a concave cavity is formed in the other side of the ejector block, an ejection piece is rotationally arranged in the concave cavity, the first end of the ejection piece abuts against the inner wall of the inclined groove, an elastic piece is arranged between the first end of the ejection piece and the inner wall of the concave cavity, and the second end of the ejection piece abuts against one side of the runner; according to the utility model, the residual colloid in the runner can be pushed and separated while the part is jacked and demoulded, so that the synchronous demoulding of the part and the cleaning of the colloid in the runner are realized, and the injection molding efficiency of the part is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of injection molds, specifically relating to a direct ejection mechanism for the glue flow channel. Background Technology

[0002] In injection mold design, a runner is incorporated into the mold. After the part is injection molded, existing injection molds require ejecting the part from the mold and then removing the solidified sprue from the runner. Due to the complex structure of the runner and the large number of nozzles, traditional injection molds require a significant amount of time to clear the sprue after ejecting the part, severely reducing the efficiency of injection molding and negatively impacting the production capacity of injection molded parts.

[0003] Therefore, in view of the problem that existing injection molds cannot efficiently and promptly clean the glue inside the glue runner during the demolding process, this utility model discloses a direct ejection mechanism for the glue runner. Utility Model Content

[0004] This utility model discloses a direct-push injection runner ejection mechanism, which can lift and demold the part while simultaneously pushing away the residual glue in the runner, thus achieving simultaneous demolding of the part and cleaning of the glue in the runner, effectively improving the efficiency of part injection molding.

[0005] This utility model is achieved through the following technical solution:

[0006] A direct-push glue channel ejection mechanism includes a direct pusher, a groove provided on the forming surface of the direct pusher, a push block slidably fitted inside the groove, and a lifting member provided at the bottom of the push block; a flow channel is provided on one side of the push block, and a cavity is provided on the other side of the push block; an ejector is rotatably mounted inside the cavity, a first end of the ejector abuts against the inner wall of the groove, and an elastic member is provided between the first end of the ejector and the inner wall of the cavity; a second end of the ejector abuts against one side of the flow channel.

[0007] When the ejector block is fully lowered into the sloping groove, its sidewalls fit tightly against the inner wall of the groove. At this point, the ejector is confined within the cavity by the pressure of the sloping groove's inner wall. Simultaneously, the elastic element between the ejector and the inner wall of the cavity is compressed, preventing the second end of the ejector from applying ejection force to one side of the runner. As the lifting element pushes the ejector block upwards, the ejector block gradually extends upwards from the sloping groove, pushing the top part for demolding. During the lifting process, a gap appears between the sidewall of the ejector block and the inner wall of the sloping groove, causing the ejector to rotate under the elastic force of the elastic element. This pushes the second end of the ejector towards the runner, applying ejection force to the runner, thus simultaneously ejecting the runner while the lifting part is being demolded.

[0008] To better realize this utility model, the ejector further includes a swinging member and a spring pin. The first end of the swinging member abuts against the inner wall of the inclined groove, and an elastic member is provided between the first end of the swinging member and the inner wall of the cavity. The spring pin is slidably disposed between the swinging member and the flow channel. The first end of the spring pin is engaged with the second end of the swinging member, and the second end of the spring pin abuts against one side of the flow channel.

[0009] To better realize this utility model, the second end of the swing member is provided with a slot, the slot is provided with an opening on the side near the flow channel, the first end of the spring pin is provided with a flange, the flange is engaged with the slot, and the spring pin passes through the opening and is slidably connected with the sliding hole inside the top block.

[0010] To better realize this utility model, the elastic element further includes a spring, the inner wall of the cavity is provided with a mounting hole, the mounting hole is provided with a spring, and the spring is provided on the side of the first end of the swinging element away from the inner wall of the inclined groove.

[0011] To better realize this utility model, furthermore, fixing blocks are fixedly installed on both sides of the inner cavity, and a swinging component is rotatably arranged between the fixing blocks on both sides.

[0012] To better realize this utility model, a rotating shaft is further provided between the first end and the second end of the swing member, and the end of the rotating shaft is rotatably connected to the rotating hole on the fixed block.

[0013] To better realize this utility model, the lifting component further includes a straight lifting rod and a guide sleeve. The bottom of the top block is provided with a connecting hole, the top end of the straight lifting rod is connected to the connecting hole, and the guide sleeve is sleeved on the outside of the straight lifting rod. The straight lifting rod and the guide sleeve are slidably connected.

[0014] To better realize this utility model, a mounting groove is further provided on the bottom side wall of the top block, and a pressing block is fixedly installed inside the mounting groove. One end of the pressing block extends into the connecting hole and slides to connect one side of the straight push rod.

[0015] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0016] This invention uses a lifting element to lift the top block, creating a gap between the first end of the ejector and the inner wall of the inclined groove on the straight top. This allows the ejector to rotate under the action of the elastic element, causing the second end of the ejector to apply a pushing force to the colloid inside the runner. This achieves simultaneous and efficient demolding and runner cleaning operations, significantly improving the efficiency of part injection molding. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of the direct-push glue channel ejection mechanism;

[0018] Figure 2 This is a schematic diagram of the top block installation;

[0019] Figure 3 This is the front view of the top block;

[0020] Figure 4 for Figure 3 Sectional view along axis AA;

[0021] Figure 5 This is a schematic diagram showing the connection between the spring pin and the oscillating component;

[0022] Figure 6 This is a schematic diagram of the installation of the straight push rod.

[0023] Wherein: 1-straight pusher; 2-top block; 3-lifting component; 4-swinging component; 5-spring pin; 6-elastic component; 7-fixed block; 8-pressing block; 31-straight pusher rod; 32-guide sleeve; 41-slot; 42-opening; 51-flange. Detailed Implementation

[0024] Example 1:

[0025] This embodiment provides a direct-push adhesive channel ejection mechanism, such as... Figures 1-4 As shown, it includes a straight top 1, on which a sloping groove is provided on the forming surface. A top block 2 is slidably fitted inside the sloping groove. A lifting member 3 is provided at the bottom of the top block 2. A flow channel is provided on one side of the top block 2, and a cavity is provided on the other side of the top block 2. An ejector is rotatably provided inside the cavity. The first end of the ejector abuts against the inner wall of the sloping groove, and an elastic member 6 is provided between the first end of the ejector and the inner wall of the cavity. The second end of the ejector abuts against one side of the flow channel.

[0026] The top of the top block 2 is provided with a forming surface. When the top block 2 descends and retracts completely into the inclined groove, the forming surface of the top of the top block 2 and the forming surface of the top of the straight top 1 are smoothly connected to form an integral forming surface for injection molding of the part. When the top block 2 is completely retracted into the inclined groove, the first end of the ejector inside the cavity is pressed against the inner wall of the inclined groove, so that the elastic element 6 between the first end of the ejector and the inner wall of the cavity is in a compressed state. At this time, the second end of the ejector will not exert a pushing force on the flow channel.

[0027] When demolding the part after it has been formed, the ejector 3 pushes the ejector block 2 upward, causing the ejector block 2 to gradually extend upward from the inclined groove. The ejector block 2 then pushes the part from the top of the ejector 1 upward for demolding. At the same time, during the upward lifting process of the ejector block 2, a gap appears between the side wall of the ejector block 2 and the inner wall of the inclined groove, allowing the ejector to rotate. At this time, the ejector rotates under the elastic force of the elastic member 6, so that the second end of the ejector applies a pushing force to one side of the runner, so that the solidified colloid inside the runner can also be ejected when the part is demolded.

[0028] After the demolded parts and the detached colloid are removed, the lifting member 3 drives the ejector block 2 to descend and return to the inside of the inclined groove, so that the inner wall of the inclined groove re-presses the first end of the ejector, causing the ejector to rotate in the opposite direction and reset. At this time, the elastic member 6 is re-compressed, and the second end of the ejector no longer applies a pushing force to the runner, so as to carry out the next injection molding operation.

[0029] Example 2:

[0030] This embodiment is a further optimization based on Embodiment 1, such as... Figures 2-4 As shown, the ejector includes a swing member 4 and a spring pin 5. The first end of the swing member 4 abuts against the inner wall of the inclined groove, and an elastic member 6 is provided between the first end of the swing member 4 and the inner wall of the cavity. The spring pin 5 is slidably disposed between the swing member 4 and the flow channel. The first end of the spring pin 5 is engaged with the second end of the swing member 4, and the second end of the spring pin 5 abuts against one side of the flow channel.

[0031] The top block 2 has a horizontal sliding hole located between the cavity and the flow channel, and the spring pin 5 is slidably connected to the sliding hole. When the lifting member 3 drives the top block 2 to rise, a gap appears between the first end of the swing member 4 and the inner wall of the inclined groove. At this time, the swing member 4 rotates forward under the elastic force of the elastic member 6, which causes the second end of the swing member 4 to apply a pushing force towards the flow channel to the spring pin 5, causing the spring pin 5 to slide towards the flow channel to push out and detach the colloid inside the flow channel. When the lifting member 3 drives the top block 2 to fall, the first end of the swing member 4 is squeezed by the inner wall of the inclined groove. At this time, the swing member 4 rotates in the opposite direction, and at the same time, the first end of the swing member 4 squeezes the elastic member 6, causing the elastic member 6 to recompress, thereby restoring the spring pin 5.

[0032] Furthermore, such as Figure 5As shown, the second end of the swing member 4 is provided with a groove 41, and the side of the groove 41 near the flow channel is provided with an opening 42. The first end of the spring pin 5 is provided with a flange 51, which engages with the groove 41. The spring pin 5 passes through the opening 42 and slides into the sliding hole inside the top block 2. The diameter of the opening 42 is larger than the diameter of the spring pin 5, ensuring that the spring pin 5 has sufficient room to move when pushed by the second end of the swing member 4, thus preventing the spring pin 5 from getting stuck. When the second end of the swing member 4 moves, the spring pin 5 can be moved towards or away from the flow channel through the engaging structure of the groove 41 and the flange 51.

[0033] The other parts of this embodiment are the same as those in Embodiment 1, so they will not be described again.

[0034] Example 3:

[0035] This embodiment is a further optimization based on the above embodiment 1 or 2, such as... Figure 4 As shown, the elastic element 6 includes a spring. A mounting hole is provided on the inner wall of the cavity, and a spring is installed inside the mounting hole. The spring is located on the side of the first end of the swing member 4 away from the inner wall of the inclined groove. When the top block 2 is pushed upwards, a gap appears between the first end of the swing member 4 and the inner wall of the inclined groove. At this time, the spring applies a spring force to the second end of the swing member 4, causing the swing member 4 to rotate in the forward direction. When the top block 2 retracts downwards, the first end of the swing member 4 is squeezed by the inner wall of the inclined groove. At this time, the second end of the swing member 4 squeezes the spring, and the swing member 4 rotates in the reverse direction to reset.

[0036] The other parts of this embodiment are the same as those in Embodiment 1 or 2 above, so they will not be described again.

[0037] Example 4:

[0038] This embodiment is a further optimization based on any one of embodiments 1-3 above, such as... Figure 2 and Figure 3 As shown, fixed blocks 7 are fixedly installed on both sides of the interior of the cavity, and a swinging member 4 is rotatably arranged between the fixed blocks 7 on both sides. The fixed blocks 7 are fixedly installed on the left and right sides inside the cavity by connecting screws, and a space is provided between the fixed blocks 7 on the left and right sides for the swinging member 4 to be rotatably installed. The left and right sides of the swinging member 4 are respectively rotatably connected to the fixed blocks 7 on the left and right sides.

[0039] Furthermore, a pivot is provided between the first and second ends of the swing member 4, and the end of the pivot is rotatably connected to a rotating hole on the fixing block 7. By setting the fixing block 7, the lateral movement of the swing member 4 can be restricted, ensuring the relative stability of the swing member 4 during rotation.

[0040] The other parts of this embodiment are the same as any one of the embodiments 1-3 above, so they will not be described again.

[0041] Example 5:

[0042] This embodiment is a further optimization based on any one of embodiments 1-4 above, such as... Figure 6 As shown, the lifting component 3 includes a straight lifting rod 31 and a guide sleeve 32. The bottom of the top block 2 is provided with a connecting hole. The top end of the straight lifting rod 31 is connected to the connecting hole. The guide sleeve 32 is sleeved on the outside of the straight lifting rod 31. The straight lifting rod 31 and the guide sleeve 32 are slidably connected.

[0043] The bottom end of the straight push rod 31 is connected to the power component, which drives the straight push rod 31 to rise or fall. At the same time, the guide sleeve 32 guides the rise and fall of the straight push rod 31, ensuring that the straight push rod 31 can smoothly drive the top block 2 to rise or fall.

[0044] Furthermore, the bottom sidewall of the top block 2 is provided with a mounting groove, such as... Figure 2 and Figure 3 As shown, a pressing block 8 is fixedly installed inside the mounting groove. One end of the pressing block 8 extends into the connecting hole and slidably connects to one side of the straight push rod 31. The pressing block 8 is installed inside the mounting groove by screws. By adjusting the tightening of the screws, the tightness of one end of the pressing block 8 against the side of the straight push rod 31 can be adjusted, thereby adjusting the magnitude of the sliding friction between the pressing block 8 and the straight push rod 31. This ensures that the pressing block 8 presses the straight push rod 31 with an appropriate force to guarantee the stability of the straight push rod 31's lifting and lowering, while avoiding excessive pressing force that would prevent the straight push rod 31 from lifting and lowering smoothly.

[0045] The other parts of this embodiment are the same as any one of the embodiments 1-4 above, so they will not be described again.

[0046] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A direct-push glue channel ejection mechanism, comprising a direct pusher (1), characterized in that, An inclined groove is provided on the forming surface of the straight top (1), and a top block (2) is provided in sliding fit inside the inclined groove. A lifting member (3) is provided at the bottom of the top block (2). A flow channel is provided on one side of the top block (2), and a cavity is provided on the other side of the top block (2). An ejector is rotatably provided inside the cavity. The first end of the ejector abuts against the inner wall of the inclined groove, and an elastic member (6) is provided between the first end of the ejector and the inner wall of the cavity. The second end of the ejector abuts against one side of the flow channel.

2. The direct-push glue channel ejection mechanism according to claim 1, characterized in that, The ejector includes a swing member (4) and a spring pin (5). The first end of the swing member (4) abuts against the inner wall of the inclined groove. An elastic member (6) is provided between the first end of the swing member (4) and the inner wall of the cavity. The spring pin (5) is slidably disposed between the swing member (4) and the flow channel. The first end of the spring pin (5) is engaged with the second end of the swing member (4). The second end of the spring pin (5) abuts against one side of the flow channel.

3. The direct-push glue channel ejection mechanism according to claim 2, characterized in that, The second end of the swing member (4) is provided with a slot (41), and the slot (41) is provided with an opening (42) on the side near the flow channel. The first end of the spring pin (5) is provided with a flange (51), and the flange (51) is engaged with the slot (41). The spring pin (5) passes through the opening (42) and is slidably connected with the sliding hole inside the top block (2).

4. A direct-push adhesive channel ejection mechanism according to any one of claims 1-3, characterized in that, The elastic element (6) includes a spring, and an installation hole is provided on the inner wall of the cavity. A spring is provided inside the installation hole, and the spring is located on the side of the first end of the swinging element (4) away from the inner wall of the inclined groove.

5. A direct-push glue channel ejection mechanism according to any one of claims 1-3, characterized in that, Fixed blocks (7) are fixedly installed on both sides of the cavity, and a swinging element (4) is rotatably arranged between the fixed blocks (7) on both sides.

6. The direct-push glue channel ejection mechanism according to claim 5, characterized in that, A rotating shaft is provided between the first end and the second end of the swing member (4), and the end of the rotating shaft is rotatably connected to the rotating hole on the fixed block (7).

7. A direct-push adhesive channel ejection mechanism according to any one of claims 1-3, characterized in that, The lifting component (3) includes a straight rod (31) and a guide sleeve (32). The bottom of the top block (2) is provided with a connecting hole. The top of the straight rod (31) is connected to the connecting hole. The guide sleeve (32) is sleeved on the outside of the straight rod (31). The straight rod (31) and the guide sleeve (32) are slidably connected.

8. The direct-push glue channel ejection mechanism according to claim 7, characterized in that, The bottom sidewall of the top block (2) is provided with an installation groove, and the pressing block (8) is fixedly installed inside the installation groove. One end of the pressing block (8) extends into the connection hole and slides to connect one side of the straight push rod (31).

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