A hot runner melt flow balance adjustment mechanism
Patent Information
- Application Number
- CN202521971940.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-15
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-09-15
AI Technical Summary
[0004]针对现有技术的不足，本实用新型提供了一种热流道熔体流动平衡的调节机构，以解决上述背景技术中提到的热流道内的熔体在流动时会因为溶体的温度差异而导致的熔体黏度差异较大，因此这就导致了溶体在热流道内流动时会出现不平衡的情况，并且由于热流道之间也都并未设置任何的隔热结构，因此这就可能会导致热量不均的情况出现的问题
1、该热流道熔体流动平衡的调节机构，通过使流道内的熔体在流动时保持平衡时，工作人员可以通过控制器来将与其所连接的加热丝都打开，从而使得加热丝来对流道内的熔体进行加热，从而防止因温度差而导致熔体黏度出现差异而导致流动不平衡的情况出现，并且加热丝也是呈螺纹缠绕在流道上的因此这就可以较好的来提高对流道的加热效果，然后调节箱的内部和底部都分别设置的有隔热板和隔热管，因此这就使得加热丝在对流道进行加热时可以较好的防止热量出现传导的情况而影响到其他流道流动的均衡性。
Smart Images
Figure CN224659992U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hot runner technology, specifically to an adjustment mechanism for the melt flow balance in a hot runner. Background Technology
[0002] The runner structure of an injection mold mainly includes the main runner, branch runners, and gate. The main runner, also known as the injection runner or sprue, is the first part through which molten plastic flows after entering the mold.
[0003] When the melt flows in the hot runner, the viscosity of the melt will vary greatly due to the temperature difference. This will cause the melt to flow unbalancedly in the hot runner. Furthermore, since there is no insulation structure between the hot runners, uneven heat distribution may occur. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a regulating mechanism for melt flow balance in hot runners, which solves the problem mentioned in the background art where the melt in the hot runner has a large difference in viscosity due to temperature differences, resulting in an imbalance in the melt flow within the hot runner. Furthermore, since no heat insulation structure is provided between the hot runners, uneven heat distribution may occur.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a regulating mechanism for hot runner melt flow balance, comprising a regulating box, wherein a plurality of flow channels arranged in a linear array are arranged inside the regulating box, and nozzles are arranged at the bottom of each of the plurality of flow channels; a plurality of heat insulation tubes arranged in a linear array are fixedly installed at the bottom of the regulating box, and flow channels are passed through each of the plurality of heat insulation tubes; a controller is arranged on the rear surface of the regulating box, and a mounting bracket is arranged on the controller; a plurality of heating wires are connected to the controller, the heating wires extend into the interior of the regulating box, and the ends of the plurality of heating wires extend into the heat insulation tubes; the plurality of heating wires are threadedly wound around the surface of the flow channel body.
[0006] By employing the above technical solution, when the melt in the flow channel is kept in balance during flow, the operator can use the controller to turn on all the heating wires connected to it, thereby heating the melt in the flow channel. This prevents flow imbalance caused by differences in melt viscosity due to temperature differences. Furthermore, the heating wires are spirally wound around the flow channel, which can effectively improve the heating effect on the flow channel. Insulation plates and insulation pipes are respectively installed inside and at the bottom of the regulating box, which can effectively prevent heat conduction when the heating wires heat the flow channel, thus preventing it from affecting the flow balance of other channels.
[0007] Preferably, a plurality of heat insulation plates arranged in a linear array are fixedly installed inside the regulating box, and the plurality of heat insulation plates separate the flow channels provided inside the regulating box.
[0008] By adopting the above technical solution, the heat insulation plate installed inside the regulating box can effectively prevent heat conduction when the heating wire heats the flow channel, thus preventing it from affecting the flow balance of other flow channels.
[0009] Preferably, the top of the regulating box has a plurality of heat dissipation holes arranged in a linear array, and the plurality of heat dissipation holes are distributed circumferentially at the outer edge of the flow channel.
[0010] By adopting the above technical solution, the heat generated inside the regulating box is discharged through the heat dissipation holes opened on the regulating box. At the same time, the regulating box has been divided into different independent spaces by heat insulation plates, which can improve the heat dissipation effect of the heat dissipation holes.
[0011] Preferably, the front surface of the regulating box is provided with a box door, the box door and the regulating box are connected by a hinge, and a door handle is fixedly installed on the front surface of the box door.
[0012] With the above technical solution, the front surface of the adjustment box is fitted with a door via a hinge, so the staff can open the door using the door handle, making it convenient for staff to maintain the heating wire.
[0013] Preferably, the multiple heating wires on the controller are individually controlled by the controller.
[0014] By adopting the above technical solution, the multiple heating wires set on the controller can be individually controlled by the controller, thus enabling the operator to adjust the flow balance of the unbalanced melt.
[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. The hot runner melt flow balance adjustment mechanism maintains the balance of the melt flow in the runner. The operator can use the controller to turn on all the heating wires connected to it, so that the heating wires heat the melt in the runner. This prevents flow imbalance caused by differences in melt viscosity due to temperature differences. The heating wires are also spirally wound on the runner, which can improve the heating effect of the runner. Furthermore, the inside and bottom of the adjustment box are equipped with heat insulation plates and heat insulation pipes, which can effectively prevent heat conduction when the heating wires heat the runner and affect the flow balance of other runners.
[0016] 2. The hot runner melt flow balance adjustment mechanism heats the different flow channels set in the adjustment box through heating wires. When the heating wires are heating, they inevitably generate a certain amount of heat. The staff can then dissipate the heat generated in the adjustment box through the heat dissipation holes. At the same time, the adjustment box has been divided into different independent spaces by heat insulation plates, which can effectively improve the heat dissipation effect of the heat dissipation holes. The front surface of the adjustment box is equipped with a door through a hinge, so the staff can open the door through the door handle, which facilitates the staff to maintain the heating wires. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the adjustment mechanism for melt flow balance in the hot runner of this utility model; Figure 2 This is a side view of the adjustment mechanism for melt flow balance in the hot runner of this utility model. Figure 3 This is a schematic diagram of the internal structure of the hot runner melt flow balance adjustment mechanism of this utility model; Figure 4 This is a schematic diagram of the heating wire and related structures of this utility model.
[0018] In the diagram: 1. Regulating box; 2. Flow channel; 3. Nozzle; 4. Heat insulation pipe; 5. Controller; 6. Mounting bracket; 7. Heating wire; 8. Heat insulation plate; 9. Heat dissipation hole; 10. Box door; 11. Door handle. Detailed Implementation
[0019] 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.
[0020] Example 1: Referring to Figures 1-4, a hot runner melt flow balance adjustment mechanism is described. The adjustment box 1 contains multiple linearly arrayed flow channels 2, each with a nozzle 3 at its bottom. Multiple linearly arrayed heat insulation tubes 4 are fixedly installed at the bottom of the adjustment box 1, each containing a flow channel 2. A controller 5 is mounted on the rear surface of the adjustment box 1, with a mounting bracket 6 on the controller 5. Multiple heating wires 7 are connected to the controller 5, extending into the adjustment box 1. The ends of the heating wires 7 extend into the heat insulation tubes 4, and the heating wires 7 are threaded around the surface of the flow channel 2 body. Multiple linearly arrayed heat insulation plates 8 are fixedly installed inside the adjustment box 1, separating the flow channels 2 within the adjustment box 1. Each heating wire 7 on the controller 5 is individually controlled by the controller 5.
[0021] Working principle: The multiple flow channels 2 set in the regulating box 1 can effectively spray the melt from the nozzle 3. When it is necessary to maintain the balance of the melt flow in the flow channel 2, the operator can turn on the heating wires 7 connected to the controller 5, so that the heating wires 7 can heat the melt in the flow channel 2, thereby preventing the flow imbalance caused by the difference in melt viscosity due to temperature difference. The heating wires 7 are also spirally wound on the flow channel 2, which can better improve the heating effect of the flow channel 2. The regulating box 1 is equipped with heat insulation plates 8 and heat insulation pipes 4 at the inside and bottom, so that when the heating wires 7 heat the flow channel 2, they can effectively prevent heat conduction and affect the flow balance of other flow channels 2. The multiple heating wires 7 set on the controller 5 can be individually controlled by the controller 5, so that the operator can adjust the flow balance of the melt with unbalanced flow individually.
[0022] Example 2: Referring to Figures 1-4, a hot runner melt flow balance adjustment mechanism is provided. The top of the adjustment box 1 has a plurality of heat dissipation holes 9 arranged in a linear array. The plurality of heat dissipation holes 9 are distributed in a circular pattern on the outer edge of the flow channel 2. The front surface of the adjustment box 1 is provided with a box door 10. The box door 10 and the adjustment box 1 are connected by a hinge. The front surface of the box door 10 is fixedly installed with a door handle 11.
[0023] Working principle: The heating wire 7 heats the different flow channels 2 set in the regulating box 1. When the heating wire 7 is heating, it will inevitably generate a certain amount of heat. The staff can then dissipate the heat generated in the regulating box 1 through the heat dissipation holes 9. At the same time, the regulating box 1 has been divided into different independent spaces by the heat insulation plate 8, which can improve the heat dissipation effect of the heat dissipation holes 9. Then, the front surface of the regulating box 1 is equipped with a door 10 by a hinge. The staff can open the door 10 through the door handle 11, which makes it convenient for the staff to maintain the heating wire 7.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A regulating mechanism for melt flow balance in a hot runner, comprising a regulating box (1), characterized in that: The regulating box (1) is provided with multiple flow channels (2) arranged in a linear array. Each of the multiple flow channels (2) is provided with a nozzle (3) at the bottom. Multiple heat insulation tubes (4) arranged in a linear array are fixedly installed at the bottom of the regulating box (1). Each of the multiple heat insulation tubes (4) has a flow channel (2) passing through it. A controller (5) is provided on the rear surface of the regulating box (1). A mounting bracket (6) is provided on the controller (5). Multiple heating wires (7) are connected to the controller (5). The heating wires (7) extend into the regulating box (1). The ends of the multiple heating wires (7) extend into the heat insulation tubes (4). The multiple heating wires (7) are threaded around the surface of the main body of the flow channel (2).
2. The adjusting mechanism for melt flow balance in a hot runner according to claim 1, characterized in that: The regulating box (1) is fixedly installed with a plurality of heat insulation plates (8) arranged in a linear array, and the plurality of heat insulation plates (8) separate the flow channels (2) set in the regulating box (1).
3. The adjusting mechanism for melt flow balance in a hot runner according to claim 1, characterized in that: The top of the regulating box (1) has a plurality of heat dissipation holes (9) arranged in a linear array, and the plurality of heat dissipation holes (9) are distributed in a circular pattern at the outer edge of the flow channel (2).
4. The adjusting mechanism for melt flow balance in a hot runner according to claim 1, characterized in that: The front surface of the regulating box (1) is provided with a box door (10), and the box door (1) and the regulating box (1) are connected by a hinge. The front surface of the box door (10) is fixedly installed with a door handle (11).
5. The adjusting mechanism for melt flow balance in a hot runner according to claim 1, characterized in that: The multiple heating wires (7) set on the controller (5) are all individually controlled by the controller (5).