Multi-point gate balance mechanism

Abstract

The utility model provides a multi-point gate balancing mechanism which comprises a fixed mold bottom plate, a runner plate and a fixed mold plate which are sequentially arranged from top to bottom, a runner is arranged on one side, close to the runner plate, of the fixed mold plate, a counter bore is formed in the runner, and a height-adjustable adjusting bolt is arranged in the counter bore. The injection mold is simple in structure, capable of controlling the molding glue inlet flow without disassembling the mold, safe and reliable, and capable of improving the production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a multi-point gate balancing mechanism. Background Art

[0002] For some injection molded products, the wall thickness varies and the surface requirements are strict. When setting the gate point, multi-point gates will be selected for molding. During cold runner molding, the feed amount cannot be controlled and the runner can only be reprocessed after the machine is removed to ensure the molding quality, resulting in low production efficiency. Utility Model Content

[0003] According to the technical problem raised above, a multi-point gate balancing mechanism is provided. The utility model provides a multi-point gate balancing mechanism which has a simple structure and can complete the material quantity control mechanism on the molding machine with high efficiency.

[0004] The technical means adopted by the utility model are as follows:

[0005] A multi-point gate balancing mechanism comprises: a fixed mold bottom plate, a runner plate and a fixed mold plate which are arranged in sequence from top to bottom, wherein the fixed mold plate is provided with a runner on one side close to the runner plate, a countersunk hole is provided in the runner, and a height-adjustable adjusting bolt is provided in the countersunk hole.

[0006] Furthermore, a threaded hole matched with the adjusting bolt is arranged in the counterbore, and the adjusting bolt is threadably screwed to the threaded hole.

[0007] Furthermore, a fixed mold cavity is provided on a side of the fixed mold plate away from the flow channel plate.

[0008] Furthermore, it also includes a sprue sleeve, which is penetrated by the fixed mold bottom plate and the runner plate, and the runner in the sprue sleeve is connected with the runner.

[0009] Furthermore, the cross-section of the gate sleeve is T-shaped, the fixed mold bottom plate is provided with a stepped hole adapted to the T-shaped gate sleeve, the gate sleeve is fixed at the stepped hole by a first bolt, and a pulling pin is provided at the step of the stepped hole, and the pulling pin is passed through the fixed mold bottom plate and the runner plate.

[0010] Furthermore, a positioning ring is provided above the stepped hole, and the positioning ring is fixed to the fixed mold bottom plate by a second bolt.

[0011] Furthermore, it also includes guide pillars, limiting pull rods and stop screws. The guide pillars are fixed on the fixed mold bottom plate and pass through the flow plate and the fixed mold plate. The limiting pull rods and stop screws limit the mold opening stroke of the flow plate and the fixed mold plate.

[0012] Furthermore, the adjusting bolt is a hexagon socket bolt.

[0013] The utility model has the following advantages:

[0014] The utility model provides a multi-point gate balancing mechanism, comprising: a fixed mold bottom plate, a flow channel plate and a fixed mold plate arranged in sequence from top to bottom, the fixed mold plate is provided with a flow channel on one side close to the flow channel plate, a countersink is provided in the flow channel, and a height-adjustable adjusting bolt is provided in the countersink. It has a simple structure, can control the molding glue flow without disassembling the mold, is safe and reliable, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a schematic diagram of the top view of the structure of an embodiment of the utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the AA structure.

[0018] In the figure: 1, guide column; 2, limit pull rod and stop screw; 3, first bolt; 4, positioning ring; 5, second bolt; 6, gate sleeve; 7, pulling pin; 8, fixed mold bottom plate; 9, runner plate; 10, fixed mold plate; 11, adjusting bolt; 12, fixed mold cavity. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example 1

[0021] like Figure 1-2As shown, a multi-point gate balancing mechanism includes: a fixed mold bottom plate 8, a runner plate 9 and a fixed mold plate 10 arranged in sequence from top to bottom, and a fixed mold cavity 12 is arranged on the side of the fixed mold plate 10 away from the runner plate 9. A runner is arranged on the side of the fixed mold plate 10 close to the runner plate 9, and a countersunk hole is arranged in the runner, and a height-adjustable adjusting bolt 11 is arranged in the countersunk hole. Specifically, the countersunk hole is arranged vertically on the side of the bottom of the runner close to the pouring port, and a threaded hole adapted to the adjusting bolt 11 is arranged in the countersunk hole, and the adjusting bolt 11 is threadedly screwed into the threaded hole. Preferably, the adjusting bolt 11 is a hexagon socket bolt, which is convenient for adjusting the height of the bolt 11.

[0022] In order to facilitate pouring, the present embodiment further includes a sprue sleeve 6, which is inserted through the fixed mold base plate 8 and the runner plate 9, and the runner in the sprue sleeve 6 is connected to the runner. Specifically, the cross section of the sprue sleeve 6 is T-shaped, and the fixed mold base plate 8 is provided with a stepped hole adapted to the T-shaped sprue sleeve 6. The sprue sleeve 6 is fixed at the stepped hole by a first bolt 3, and a material pulling pin 7 is provided at the step of the stepped hole, and the material pulling pin 7 is inserted through the fixed mold base plate 8 and the runner plate 9. A positioning ring 4 is provided above the stepped hole, and the positioning ring 4 is fixed to the fixed mold base plate 8 by a second bolt 5. During installation, the material pulling pin 7 passes through the runner plate 9, and the sprue sleeve 6 presses the material pulling pin 7 to prevent it from moving.

[0023] To facilitate mold opening, the present embodiment further includes a guide column 1, a limit pull rod and a stop screw 2. The guide column 1 is fixed on the fixed mold bottom plate 8 and passes through the flow channel plate 9 and the fixed mold plate 10. The limit pull rod and the stop screw 2 are used to limit the mold opening stroke of the flow channel plate 9 and the fixed mold plate 10.

[0024] When in use, after the mold is assembled, it is placed on the workbench of the injection molding machine, and the molten resin material is injected into the gate sleeve 6. When the cavity is filled, the mold is opened to understand the filling status of each gate point. If there is an imbalance, the adjusting bolt 11 is screwed with a wrench to adjust the adjusting bolt 11 up and down, and the injection molding is continued after the balance is achieved. That is, the adjusting bolt 11 can be raised above the bottom surface of the runner groove in the place filled in advance, so that the feeding speed becomes slower and smaller to achieve balance, thereby realizing the control of the molding injection flow without disassembling the mold, which is safe and reliable and improves production efficiency.

[0025] It should be noted that the parts not described in detail in the present invention are prior art.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "install", "set", "connect", "connect", "fix", "screw" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0031] In the description of the present utility model, the term "comprises", "includes" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A multi-point gate balancing mechanism, characterized in that: include: The fixed mold bottom plate, the flow channel plate and the fixed mold plate are arranged in sequence from top to bottom. The fixed mold plate is provided with a flow channel on one side close to the flow channel plate. A countersunk hole is arranged in the flow channel. A height-adjustable adjusting bolt is arranged in the countersunk hole.

2. A multi-point gate balancing mechanism according to claim 1, characterized in that: A threaded hole matched with the adjusting bolt is arranged in the counterbore, and the adjusting bolt is threadedly screwed into the threaded hole.

3. A multi-point gate balancing mechanism according to claim 1, characterized in that: A fixed mold cavity is arranged on a side of the fixed mold plate away from the flow channel plate.

4. A multi-point gate balancing mechanism according to claim 1, characterized in that: It also includes a sprue sleeve, which is penetrated by the fixed mold bottom plate and the runner plate, and the runner in the sprue sleeve is connected with the runner.

5. A multi-point gate balancing mechanism according to claim 4, characterized in that: The cross-section of the gate sleeve is T-shaped, and the fixed mold bottom plate is provided with a stepped hole adapted to the T-shaped gate sleeve. The gate sleeve is fixed at the stepped hole by a first bolt, and a pulling pin is provided at the step of the stepped hole. The pulling pin is penetrated through the fixed mold bottom plate and the runner plate.

6. A multi-point gate balancing mechanism according to claim 5, characterized in that: A positioning ring is arranged above the stepped hole, and the positioning ring is fixed to the fixed mold bottom plate by a second bolt.

7. The multi-point gate balancing mechanism according to claim 1, characterized in that: It also includes guide pins, limit rods and stop screws. The guide pins are fixed on the fixed mold bottom plate and pass through the flow plate and the fixed mold plate. The limit rods and stop screws limit the mold opening stroke of the flow plate and the fixed mold plate.

8. A multi-point gate balancing mechanism according to any one of claims 1 to 7, characterized in that: The adjusting bolt is a hexagon socket bolt.

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