Balanced runner structure of multi-cavity wire box mold

Abstract

The utility model discloses a balance runner structure of a multi-cavity wire box mould, which comprises a main runner, first-stage sub-runners, second-stage sub-runners, third-stage sub-runners and a wire box product pouring inlet runner, the main runner is S-shaped, a plurality of first-stage sub-runners are respectively arranged on two sides of the end part of the main runner, one end of each first-stage sub-runner is vertically communicated with the main runner, and the other end of each first-stage sub-runner is vertically communicated with the second-stage sub-runner. The plurality of second-stage sub-runners are respectively arranged on two sides of the other end of the first-stage sub-runner, one end of each second-stage sub-runner is vertically communicated with the first-stage sub-runner, the plurality of third-stage sub-runners are respectively arranged on two sides of each second-stage sub-runner, one end of each third-stage sub-runner is vertically communicated with the second-stage sub-runner, and the other end of each third-stage sub-runner is vertically communicated with the and the other end of the third-stage sub-runner is vertically communicated with the wire box product pouring inlet runner. The balance runner structure disclosed by the utility model achieves the purpose of balancing the pressure from the main runner to the sub-runners, and ensures that the quality of each product is kept consistent.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection mold flow channels, and in particular relates to a balanced flow channel structure of a multi-cavity wire box mold. Background Art

[0002] At present, the number of cavities in injection molds is increasing, and the design requirements for molds are getting higher and higher. The design of the corresponding runner and gating system is crucial. A very important parameter is the balanced design of the runner injection. Only when the injection is balanced can the injected molecules fill the cavity at the same time, ensuring that the product is not prone to injection problems such as flash, sticking to the mold or white spots at the gate. The balanced design of the runner is crucial to the quality of the product.

[0003] Chinese patent CN210999806U discloses a flow channel structure of an injection mold, which includes a filling port arranged on the mold, the filling port is correspondingly connected to at least two main flow channels arranged inside the mold, the main flow channel is correspondingly connected to at least two branch flow channel gathering ports, the branch flow channel gathering ports are correspondingly connected to multiple branch flow channels, the branch flow channels are correspondingly connected to the direct flow channel, the direct flow channel is correspondingly connected to at least two cavities, and the filling port is also correspondingly detachably connected to the filling port plug. The branch flow channel and the main flow channel are partially vertically connected and partially obliquely connected, resulting in an unbalanced pressure from the main flow channel to the branch flow channel, thereby causing an unbalanced material quantity and inconsistent quality of the final prepared product. Utility Model Content

[0004] In view of the above problems, the purpose of the present utility model is to provide a balanced flow channel structure for a multi-cavity wire box mold.

[0005] The specific technical solutions are as follows:

[0006] A balanced runner structure of a multi-cavity wire box mold is formed by combining an upper mold plate and a lower mold plate, and includes a main runner, a primary runner, a secondary runner, a tertiary runner and a pouring inlet runner for a wire box product. The main runner is S-shaped, and a plurality of primary runners are respectively arranged on both sides of the ends of the main runner at both ends, and one end of the primary runner is vertically connected to the main runner, a plurality of secondary runners are respectively arranged on both sides of the other end of the primary runner, and one end of the secondary runner is vertically connected to the primary runner, a plurality of tertiary runners are respectively arranged on both sides of the secondary runner, and one end of the tertiary runner is vertically connected to the secondary runner, and the other end of the tertiary runner is vertically connected to the pouring inlet runner for the wire box product, and the pouring inlet runner for the wire box product extends vertically downward.

[0007] Furthermore, the first-level diversion channel includes a first-level arc segment and a first-level direct current segment, one end of the first-level arc segment is vertically connected to the end of the main channel, and the other end is connected to the first-level direct current segment. The second-level diversion channel includes a second-level arc segment and a second-level direct current segment, one end of the second-level arc segment is vertically connected to the first-level direct current segment, and the other end is connected to the second-level direct current segment. The third-level diversion channel is a straight channel, which is vertically connected to the second-level direct current segment.

[0008] Furthermore, the first-level branch channels on both sides of the main channel end are centrally symmetrical with the branch opening as the center, the second-level branch channels on both sides of the first-level branch channel end are centrally symmetrical with the branch opening as the center, and the third-level branch channels on both sides of the second-level branch channel end are centrally symmetrical with the branch opening as the center.

[0009] Furthermore, buffer areas are provided at the ends of the main channel, the primary branch channel, and the secondary branch channel.

[0010] Furthermore, the cross-sections of the main channel, the primary branch channel, and the secondary branch channel are circular, and the cross-section of the tertiary branch channel is an inverted trapezoid.

[0011] Furthermore, the diameter of the lower end outlet of the pouring inlet flow channel of the wire box product is 1.7-2mm.

[0012] The beneficial effects of the utility model are:

[0013] 1) The flow channels of the flow channel structure of the utility model are vertically connected to each other, so that the pressure on the materials on both sides is balanced, so that the molten material enters the final material pouring port evenly and evenly, so that the quality of each final product remains consistent;

[0014] 2) The runner adopts a combination of circular runner and trapezoidal runner to facilitate runner demoulding;

[0015] 3) The curvature of the arc segment can be designed according to the angles of the two pouring inlets of the required wire box product, while ensuring the balance of pouring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the top structure of the utility model.

[0018] In the figure: 1. Main flow channel; 2. First-level branch flow channel; 21. First-level arc segment; 22. First-level direct flow segment; 3. Second-level branch flow channel; 31. Second-level arc segment; 32. Second-level direct flow segment; 4. Third-level branch flow channel; 5. Wire box product pouring inlet flow channel; 6. Buffer area. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings of the specification, but the protection scope of the present invention is not limited thereto.

[0020] like Figure 1 and Figure 2 As shown, a balanced flow channel structure of a multi-cavity wire box mold includes a main flow channel 1, four primary branch flow channels 2, eight secondary branch flow channels 3 and sixteen tertiary branch flow channels 4. The main flow channel 1 is S-shaped, and the four primary branch flow channels 2 are respectively arranged on both sides of the ends of the main flow channel 1, and one end of the primary branch flow channel 2 is vertically connected to the main flow channel 1. The primary branch flow channels 2 on both sides of both ends of the main flow channel 1 are respectively centrally symmetrical with the branch port as the center point. The eight secondary branch flow channels 3 are respectively arranged on both sides of the other ends of the four primary branch flow channels 2, and one end of the secondary branch flow channels 3 is vertically connected to the primary branch flow channel 2. The secondary branch flow channels 3 on both sides of each primary branch flow channel 2 are centrally symmetrical with the branch port as the center point. The sixteen tertiary branch flow channels 4 are respectively arranged on both sides of the secondary branch flow channel 3, and one end of the tertiary branch flow channel 4 is vertically connected to the secondary branch flow channel 3, and the other end of the tertiary branch flow channel 4 is connected to the pouring inlet of the wire box product. The flow channels 5 are connected vertically, and the tertiary flow channels 4 on both sides of each secondary flow channel 3 are symmetrical with the flow outlet as the central axis. The primary flow channel 2 includes a primary arc segment 21 and a primary DC segment 22. One end of the primary arc segment 21 is vertically connected to the end of the main flow channel 1, and the other end is connected to the primary DC segment 22. The secondary flow channel 3 includes a secondary arc segment 31 and a secondary DC segment 32. One end of the secondary arc segment 31 is vertically connected to the primary DC segment 22, and the other end is connected to the secondary DC segment 32. The tertiary flow channel 4 is a linear flow channel, which is vertically connected to the secondary DC segment 32. Buffer areas 6 are provided at the ends of the main flow channel 1, the primary flow channel 2, the secondary flow channel 3, and the tertiary flow channel 4. The main flow channel 1, the primary flow channel 2, and the secondary flow channel 3 all adopt circular flow channels, and the tertiary flow channel 4 adopts an inverted trapezoidal flow channel. The diameter of the lower end outlet of the pouring inlet flow channel 5 of the wire box product is 1.7-2mm.

Claims

1. A balanced flow channel structure of a multi-cavity wire box mold, which is formed by the upper mold plate and the lower mold plate after the mold is closed, characterized in that: The invention comprises a main flow channel (1), a primary branch flow channel (2), a secondary branch flow channel (3), a tertiary branch flow channel (4) and a pouring inlet flow channel (5) for a wire box product. The main flow channel (1) is S-shaped. A plurality of primary branch flow channels (2) are respectively arranged on both sides of the ends of the main flow channel (1), and one end of the primary branch flow channel (2) is vertically connected to the main flow channel (1). A plurality of secondary branch flow channels (3) are respectively arranged on both sides of the other end of the primary branch flow channel (2), and one end of the secondary branch flow channel (3) is vertically connected to the primary branch flow channel (2). A plurality of tertiary branch flow channels (4) are respectively arranged on both sides of the secondary branch flow channel (3), and one end of the tertiary branch flow channel (4) is vertically connected to the secondary branch flow channel (3), and the other end of the tertiary branch flow channel (4) is vertically connected to the pouring inlet flow channel (5) for a wire box product. The pouring inlet flow channel (5) for a wire box product extends vertically downward.

2. A balanced flow channel structure of a multi-cavity wire box mold according to claim 1, characterized in that: The primary flow branch channel (2) comprises a primary arc segment (21) and a primary direct current segment (22); one end of the primary arc segment (21) is vertically connected to the end of the main flow channel (1), and the other end is connected to the primary direct current segment (22); the secondary flow branch channel (3) comprises a secondary arc segment (31) and a secondary direct current segment (32); one end of the secondary arc segment (31) is vertically connected to the primary direct current segment (22), and the other end is connected to the secondary direct current segment (32); the tertiary flow branch channel (4) is a linear flow channel, and is vertically connected to the secondary direct current segment (32).

3. A balanced flow channel structure of a multi-cavity wire box mold according to claim 1, characterized in that: The first-level flow diversion channels (2) on both sides of the end of the main flow channel (1) are centrally symmetrical with the flow diversion opening as the center, the second-level flow diversion channels (3) on both sides of the end of the first-level flow diversion channel (2) are centrally symmetrical with the flow diversion opening as the center, and the third-level flow diversion channels (4) on both sides of the end of the second-level flow diversion channel (3) are centrally symmetrical with the flow diversion opening as the center.

4. A balanced flow channel structure of a multi-cavity wire box mold according to claim 1, characterized in that: Buffer areas (6) are provided at the ends of the main flow channel (1), the primary branch flow channel (2), and the secondary branch flow channel (3).

5. The balanced flow channel structure of a multi-cavity wire box mold according to claim 1, characterized in that: The cross sections of the main flow channel (1), the first-level branch flow channel (2), and the second-level branch flow channel (3) are circular, and the cross section of the third-level branch flow channel (4) is an inverted trapezoid.

6. A balanced flow channel structure of a multi-cavity wire box mold according to claim 1, characterized in that: The diameter of the lower end outlet of the pouring inlet flow channel (5) of the wire box product is 1.7-2 mm.

Images