Adjustable runner structure for plastic mold

Abstract

The utility model provides a kind of adjustable runner structure of plastic mould, belong to injection mould technical field. Including: injection mould body, further include: adjusting assembly, adjusting assembly is placed in the bottom of one side of injection mould body, adjusting assembly includes the lower die plate of being set in the bottom of injection mould body, the inside of lower die plate is provided with adjusting shaft, main runner is opened in adjusting shaft, and main runner is annular array distribution on adjusting shaft;Fixed component, fixed component is placed in the both ends of adjusting assembly and is used for the angle of adjusting shaft fixed, and fixed component includes the pivot of being connected in the both ends of adjusting shaft;By setting adjusting assembly, by rotating adjusting shaft, can drive the alignment of different volume main runner and nozzle, can quickly realize the switching of main runner volume, to adapt the fluidity of different materials, the volume of main runner is fixed, after switching, can accurately position melt flow, help to quickly and accurately switch to specific flow, improve runner regulation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to an adjustable runner structure for plastic molds. Background Technology

[0002] Adjustable runner structures for plastic molds are devices used to regulate fluid flow in plastic molds. By changing the size, shape, or passage of the runner, the flow of plastic can be controlled to meet different molding requirements and improve the quality and production efficiency of plastic products.

[0003] The existing adjustable runner structure of plastic molds can adjust the injection runner according to factors such as the shape and size of each cavity and the distance from the main runner, so as to ensure that each cavity can be uniformly filled, thereby improving the consistency and quality of the plastic parts.

[0004] However, in practical applications, existing adjustable flow channel structures typically adjust the flow rate by changing the flow channel cross-section. This adjustment is usually continuous, which makes it difficult to precisely switch between preset volume levels. This leads to errors after adjustment and requires multiple trial moldings to ensure the accuracy of the adjustment, which is not conducive to improving the adjustment efficiency of the flow channel.

[0005] Therefore, this application provides an adjustable runner structure for plastic molds to meet the requirements. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing an adjustable flow channel structure for plastic molds.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: an adjustable runner structure for a plastic mold, comprising an injection mold body, and further comprising:

[0008] An adjustment component is located at the bottom of one side of the injection mold body. The adjustment component includes a lower template disposed at the bottom of the injection mold body. An adjustment shaft is disposed on the inner side of the lower template. A main channel is opened on the adjustment shaft. The main channel is distributed in a ring array on the adjustment shaft.

[0009] A fixing component is provided at both ends of the adjusting component and is used to fix the angle of the adjusting shaft. The fixing component includes a rotating shaft connected to both ends of the adjusting shaft. The rotating shaft is provided with a buckle and is engaged with the lower template through the buckle.

[0010] Furthermore, the lower template has a branch channel, and the adjusting shaft has a connecting channel that matches the branch channel.

[0011] The beneficial effect of adopting the above-mentioned further solution is that while the connecting channel rotates with the adjusting shaft, it can also fit with the branch channel, thus avoiding melt leakage.

[0012] Furthermore, a cleaning groove is provided inside the lower template on the side near the adjustment shaft.

[0013] The beneficial effect of adopting the above-mentioned further solution is that, since the cleaning tank is connected to the inner groove opened on the lower template for the adjustment shaft, it is convenient to clean the main channel and reduce the impurities remaining on the inner side of the main channel.

[0014] Furthermore, a slider is fixedly connected to the rotating shaft, and the rotating shaft is rotatably connected to the lower template through the slider.

[0015] The beneficial effect of adopting the above-mentioned further solution is that it helps to maintain the stability of the rotating shaft and the adjusting shaft during rotation and prevents deviation.

[0016] Furthermore, the rotating shaft is provided with an anti-slip coating.

[0017] The beneficial effect of adopting the above-mentioned further solution is that it requires a certain force to push the shaft, avoiding the shaft from shifting due to vibration, which helps to improve the stability of the shaft.

[0018] Furthermore, a spring is connected between the buckle and the rotating shaft, and the buckle is slidably connected to the rotating shaft via the spring.

[0019] The advantages of adopting the above-mentioned further solution are: it facilitates the rotation of the shaft, and when the main channel moves to the designated position, the spring pushes the buckle to reset, so that the shaft engages with the lower template.

[0020] Furthermore, the diameters of the main channels that are close to each other are the same on the side near the opening, but the depths of the main channels that are close to each other are different.

[0021] The advantages of adopting the above-mentioned further solution are: ensuring that the main channel fits the lower template to prevent melt leakage; at the same time, the depth of the main channel is inconsistent to ensure that the volume of each main channel is different.

[0022] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0023] 1. By setting up the adjustment component and rotating the adjustment shaft, the main channel with different volumes can be aligned with the nozzle, which can quickly switch the main channel volume to adapt to the flowability of different materials. Since the volume of the main channel is fixed, the melt flow rate can be accurately positioned after switching. This effectively solves the problem of errors after adjustment and the need for multiple trial runs. It helps to quickly and accurately switch to a specific flow rate and improve the efficiency of flow channel adjustment.

[0024] 2. By setting a fixing component, after the adjustment shaft completes the angle adjustment, the buckle engages with the locking groove on the lower template to fix the angle of the rotating shaft, thereby locking the adjustment shaft and ensuring that the adjustment shaft remains stable during use, effectively preventing it from shifting unexpectedly. Attached Figure Description

[0025] Figure 1 This is a front view of an adjustable runner structure for a plastic mold according to this utility model;

[0026] Figure 2 This is a structural diagram of the adjusting component in an adjustable runner structure for a plastic mold according to this utility model;

[0027] Figure 3 This is a side sectional view of the adjusting component in the adjustable runner structure of a plastic mold according to this utility model;

[0028] Figure 4 This is an exploded view of the fixing component in the adjustable runner structure of a plastic mold according to this utility model;

[0029] Figure 5 This is a cross-sectional view of the adjusting shaft in the adjustable flow channel structure of a plastic mold according to this utility model;

[0030] Figure 6 This utility model relates to an adjustable runner structure for plastic molds. Figure 3 Enlarged view of point A above.

[0031] Figure Labels

[0032] 1. Injection mold body;

[0033] 2. Adjustment component; 21. Lower template; 22. Adjustment shaft; 23. Main flow channel; 24. Branch flow channel; 25. Connecting flow channel; 26. Cleaning tank;

[0034] 3. Fixing components; 31. Rotating shaft; 32. Buckle; 33. Anti-slip coating; 34. Slider; 35. Spring. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] like Figures 1-5As shown, this utility model provides a technical solution: an adjustable runner structure for a plastic mold, including an injection mold body 1, which consists of an upper mold, a gating system, a temperature control system, and a demolding system. The upper mold consists of a driving device and a positioning system. The driving device drives the upper mold to move, and the positioning system positions the upper mold using sensors. The gating system injects the melt into the main runner 23 through nozzles. The temperature control system controls the mold temperature to accelerate cooling or maintain the mold temperature. The demolding system ejects the molded part from the moving mold. The system also includes:

[0037] like Figures 1-3 As shown, the adjustment component 2 is located at the bottom of one side of the injection mold body 1. The adjustment component 2 includes a lower template 21 located at the bottom of the injection mold body 1. An adjustment shaft 22 is provided on the inner side of the lower template 21. A main channel 23 is provided on the adjustment shaft 22. The main channel 23 is distributed in a ring array on the adjustment shaft 22.

[0038] like Figures 1-4 As shown, the fixing component 3 is placed at both ends of the adjusting component 2 and is used to fix the angle of the adjusting shaft 22. The fixing component 3 includes a rotating shaft 31 connected to both ends of the adjusting shaft 22. The rotating shaft 31 is provided with a buckle 32, and the rotating shaft 31 is engaged with the lower template 21 through the buckle 32. By opening main channels 23 with different volumes on the adjusting shaft 22, rotating the adjusting shaft 22 can drive the different main channels 23 to align with the nozzle. Thus, by rotating the adjusting shaft 22, the volume of the main channel 23 can be quickly switched to adapt to different material flow. Since the volume of the main channel 23 is a fixed amount... This allows the main flow channel 23 to accurately position the melt flow rate after switching, solving the problem of errors easily generated after adjustment and the need for multiple trial runs. It is beneficial to quickly and accurately switch specific flow rates and improve the efficiency of flow channel adjustment. The rotating shaft 31 is welded to the adjusting shaft 22, and a snap-fit ​​groove matching the buckle 32 is opened on the rotating shaft 31. When the angle of the adjusting shaft 22 is adjusted, the buckle 32 snaps into the snap-fit ​​groove on the lower template 21, fixing the angle of the rotating shaft 31, thereby fixing the adjusting shaft 22 and ensuring that the adjusting shaft 22 remains stable during use and preventing the adjusting shaft 22 from accidentally shifting.

[0039] Furthermore, such as Figure 3 and Figure 6 As shown, a branch channel 24 is provided on the lower template 21, and a connecting channel 25 matching the branch channel 24 is provided on the adjusting shaft 22. By providing connecting channels 25 on both sides of the main channel 23, and the connection between the connecting channel 25 and the branch channel 24 is an arc-shaped structure, the connecting channel 25 can fit with the branch channel 24 while rotating with the adjusting shaft 22, thus preventing melt leakage.

[0040] Furthermore, such as Figure 3As shown, a cleaning groove 26 is provided inside the lower template 21 on the side near the adjusting shaft 22. By installing plugs at both ends of the cleaning groove 26, the cleaning groove 26 is sealed to ensure the cleanliness of the inside of the lower template 21 when the mold is working. When the mold has been used for a long time, melt residue is easily accumulated inside the main channel 23. The plugs are removed and a cleaning rod with bristles is inserted into the cleaning groove 26. Since the cleaning groove 26 is connected to the inner groove opened on the lower template 21 for the adjusting shaft 22, it is convenient to clean the main channel 23 and reduce the impurities remaining inside the main channel 23.

[0041] Furthermore, such as Figure 4 As shown, a slider 34 is fixedly connected to the rotating shaft 31. The rotating shaft 31 is rotatably connected to the lower template 21 through the slider 34. By welding the slider 34 to the rotating shaft 31, a groove matching the slider 34 is opened on the lower template 21. The rotating shaft 31 rotates inside the lower template 21 along the groove through the slider 34. The slider 34 and the groove cooperate to limit the rotation path of the rotating shaft 31, which helps to maintain the stability of the rotating shaft 31 and the adjusting shaft 22 during rotation and prevents deviation.

[0042] Furthermore, such as Figure 4 As shown, the rotating shaft 31 is provided with an anti-slip coating 33. By spraying the anti-slip coating 33 onto both ends of the rotating shaft 31, the anti-slip coating 33 increases the friction between the anti-slip coating 33 and the lower template 21, so that the rotating shaft 31 requires a certain force to push, thus preventing the rotating shaft 31 from shifting due to vibration and improving the stability of the rotating shaft 31.

[0043] Furthermore, such as Figure 4 As shown, a spring 35 connects the buckle 32 and the rotating shaft 31. The buckle 32 is slidably connected to the rotating shaft 31 through the spring 35. By opening a slot in the rotating shaft 31 and installing a telescopic rod between the slot and the buckle 32, the spring 35 is sleeved on the telescopic rod, allowing the buckle 32 to slide inside the slot. When the rotating shaft 31 is rotated, the buckle 32 is forcefully retracted inside the slot, facilitating the rotation of the rotating shaft 31. When the main channel 23 moves to the designated position, the spring 35 pushes the buckle 32 to reset, causing the rotating shaft 31 to engage with the lower template 21.

[0044] Furthermore, such as Figure 5 As shown, the diameters of the main channels 23 that are close to each other are the same on the side near the opening, but the depths of the main channels 23 that are close to each other are different. By distributing the main channels 23 in a ring on the adjusting shaft 22, each main channel 23 is staggered. At the same time, since the size of the slot on the lower template 21 is fixed, the diameter of the side of each main channel 23 that is connected to the slot remains fixed, ensuring that the main channel 23 fits the lower template 21 and prevents melt leakage. Meanwhile, the inconsistent depths of the main channels 23 ensure that each main channel 23 has a different volume.

[0045] Working principle: such as Figures 1-5 As shown, insert an Allen wrench into the inside of the rotating shaft 31, rotate the rotating shaft 31, and the latch 32 retracts into the groove, rotating the main channel 23 of a specified volume to the top, so that the main channel 23 fits against the groove of the lower template 21, and the connecting channel 25 connects the main channel 23 and the branch channel 24. Since the volume of the main channel 23 is fixed, the main channel 23 can accurately position the melt flow rate after switching, which is beneficial for quick and accurate switching of specific flow rates and improving the efficiency of channel adjustment. At this time, the spring 35 pushes the latch 32 to reset, and the latch 32 and the lower template 21... The locking groove on 1 engages to fix the angle between the adjusting shaft 22 and the main runner 23. Then, the driving device is used to fit the upper mold and the lower mold plate 21 on the injection mold body 1. The nozzle on the injection mold body 1 sends the melt into the interior of the main runner 23. The main runner 23 diverts the melt to the interior of the branch runner 24 to form the injection molded part. After long-term use of the mold, melt residue is easily accumulated inside the main runner 23. The plug is removed and a cleaning rod with bristles is inserted into the interior of the cleaning groove 26 to facilitate cleaning of the main runner 23 and reduce the impurities remaining inside the main runner 23.

[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 other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An adjustable runner structure for a plastic mold, comprising an injection mold body (1), characterized in that, Also includes: Adjustment component (2), the adjustment component (2) is placed at the bottom of one side of the injection mold body (1), the adjustment component (2) includes a lower template (21) disposed at the bottom of the injection mold body (1), an adjustment shaft (22) is disposed on the inner side of the lower template (21), and a main channel (23) is opened on the adjustment shaft (22), the main channel (23) is distributed in a ring array on the adjustment shaft (22); The fixing component (3) is placed at both ends of the adjusting component (2) and is used to fix the angle of the adjusting shaft (22). The fixing component (3) includes a rotating shaft (31) connected to both ends of the adjusting shaft (22). The rotating shaft (31) is provided with a buckle (32). The rotating shaft (31) is engaged with the lower template (21) through the buckle (32).

2. The adjustable runner structure for a plastic mold according to claim 1, characterized in that, The lower template (21) is provided with a branch channel (24), and the adjusting shaft (22) is provided with a connecting channel (25) that matches the branch channel (24).

3. The adjustable runner structure for a plastic mold according to claim 1, characterized in that, A cleaning groove (26) is provided inside the lower template (21) on the side near the adjusting shaft (22).

4. The adjustable runner structure for a plastic mold according to claim 1, characterized in that, A slider (34) is fixedly connected to the rotating shaft (31), and the rotating shaft (31) is rotatably connected to the lower template (21) through the slider (34).

5. The adjustable runner structure for a plastic mold according to claim 1, characterized in that, The rotating shaft (31) is provided with an anti-slip coating (33).

6. The adjustable runner structure for a plastic mold according to claim 1, characterized in that, A spring (35) is connected between the buckle (32) and the rotating shaft (31), and the buckle (32) is slidably connected to the rotating shaft (31) through the spring (35).

7. The adjustable runner structure for a plastic mold according to claim 1, characterized in that, The diameters of the main channels (23) that are close to each other are the same on the side near the opening, but the depths of the main channels (23) that are close to each other are different.

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