Accurate mold opening stroke adjusting structure of three-plate injection mold

Abstract

The utility model discloses a kind of precision mold opening stroke adjusting structure of three-plate injection mold, the utility model relates to injection mold technical field, including fixed plate, runner push plate and movable die seat plate, stroke adjusting mechanism is installed between fixed plate and runner push plate, the utility model has the advantages that by the precision cooperation of screw rod and adjusting block, in combination with the position of indicating head on scale line, current stroke setting value can be directly read by operator, precision, digital adjustment to mold opening stroke can be realized, and only need to rotate knob to complete adjustment when adjusting, simple and fast in adjustment process, locking structure is set on knob, when adjusting to specified, loosen sliding plate so that plug rod is inserted into closely arranged insertion hole, further can be fixed to knob, effectively prevent the movement caused by vibration or misoperation in mold movement process, ensure the long-term stability of mold opening stroke.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a precise mold opening stroke adjustment structure for a three-plate injection mold. Background Technology

[0002] Three-plate injection molds (also known as double parting surface injection molds) are mainly composed of a fixed mold base plate, a runner ejector plate (middle plate), and a moving mold plate. They have two parting surfaces, which can realize the separate demolding of the plastic part and the solidified material of the gating system. They are suitable for molding plastic parts with point gate injection. During the mold opening process, the mold needs to go through different mold opening stages in sequence, and each mold opening stage needs to be precisely controlled.

[0003] In the prior art, the mold opening stroke adjustment of three-plate injection molds usually relies on limit rods, which results in a lack of fine adjustment scale. Operators cannot quickly and intuitively understand the current mold opening stroke setting value, and the adjustment accuracy is low. To address this, we propose a precise mold opening stroke adjustment structure for three-plate injection molds. Utility Model Content

[0004] The purpose of this utility model is to provide a precise mold opening stroke adjustment structure for a three-plate injection mold.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a precise mold opening stroke adjustment structure for a three-plate injection mold, comprising a fixed platen, a runner push plate, and a moving mold base plate, wherein a stroke adjustment mechanism is installed between the fixed platen and the runner push plate.

[0006] The stroke adjustment mechanism includes a drive assembly, which is fixedly installed at the middle of both ends of the fixed template. Guide assemblies are bolted to the front and rear sides of both ends of the flow channel push plate. The drive assembly includes a support member. A screw is provided on one support member via a bearing, and a guide rod is fixedly connected to the other support member. Adjustment blocks are sleeved on the outer walls of both the screw and the guide rod, and a knob is provided at the bottom of the screw.

[0007] The guiding assembly includes a guide plate. One end of the guide plate is set on the front and rear sides of the outer surface of both ends of the flow channel push plate by screws. The other end of the guide plate extends to the outside of the fixed template. Locking nuts are provided on the front and rear sides of the outer surface of both ends of the fixed template. Scale lines are provided on one side of the outer surface of the guide plate. An indicator head is fixedly connected to the outer surface of one side of the locking nut.

[0008] As a further embodiment of this utility model: the support member is fixedly connected to the middle of the outer surfaces on both sides of the fixed template, and the adjusting block is fixedly connected to the middle of the outer surfaces on both sides of the flow channel push plate.

[0009] As a further embodiment of this utility model: a limiting component is fixedly connected to the top side of the screw to limit the adjustment block.

[0010] As a further embodiment of this utility model: a sliding rod is fixedly connected to the center of the bottom of the knob, a sliding plate is slidably connected to the outer wall of the sliding rod, a spring is provided on the bottom side of the sliding plate, and insert rods are fixedly connected to both ends of the sliding plate.

[0011] As a further embodiment of this utility model: the support member has multiple insertion holes arranged in a circular direction at its bottom, and the insertion holes are connected to the insertion rod.

[0012] As a further embodiment of this utility model: a T-shaped component is threadedly connected to the locking nut, and T-shaped grooves are provided on both inner side walls of the guide plate, with the inner wall of the T-shaped groove slidingly connected to the outer wall of the T-shaped component.

[0013] As a further embodiment of this utility model: the scale line and the indicator head are set in the same direction, and the indicator head moves on the scale line.

[0014] Compared with the prior art, the beneficial effects of this utility model by adopting the above technical solution are as follows:

[0015] 1. This utility model, through the precise cooperation of the screw and the adjusting block, and combined with the position of the indicator head on the scale line, allows the operator to directly read the current stroke setting value, enabling precise and digital adjustment of the mold opening stroke. Moreover, the adjustment can be completed simply by rotating the knob, making the adjustment process simple and quick.

[0016] 2. This utility model has a locking structure on the knob. When the knob is adjusted to the specified position, the sliding plate is released so that the insert rod is inserted into the closely arranged insertion holes, thereby fixing the knob. This effectively prevents movement caused by vibration or accidental rotation during the mold movement and ensures the long-term stability of the mold opening stroke.

[0017] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this utility model;

[0019] Figure 2 This is a schematic diagram illustrating the separation of the template and the flow channel pusher in an embodiment of this utility model.

[0020] Figure 3 This is an enlarged view of Figure A in the embodiment of this utility model;

[0021] Figure 4This is a schematic diagram of the driving component in an embodiment of the present utility model;

[0022] Figure 5 This is an enlarged view of Figure B in the embodiment of this utility model.

[0023] In the diagram: 1. Fixed mold plate; 2. Runner push plate; 3. Moving mold base plate; 4. Stroke adjustment mechanism; 41. Drive assembly; 411. Support component; 4111. Insertion hole; 412. Screw; 413. Limiting component; 414. Adjusting block; 415. Knob; 4151. Slide rod; 4152. Slide plate; 4153. Spring; 4154. Insert rod; 42. Guide assembly; 421. Guide plate; 422. T-shaped slide groove; 423. Scale line; 424. T-shaped component; 425. Locking nut; 426. Indicator head. Detailed Implementation

[0024] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is for the purpose of helping to understand this utility model, but does not constitute a limitation on this utility model.

[0025] Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0026] Please see the appendix Figure 1 - Appendix Figure 5 This utility model discloses a precise mold opening stroke adjustment structure for a three-plate injection mold, comprising a fixed mold plate 1, a runner push plate 2, and a moving mold base plate 3, characterized in that: a stroke adjustment mechanism 4 is installed between the fixed mold plate 1 and the runner push plate 2.

[0027] In embodiment 1, the stroke adjustment mechanism 4 includes a drive assembly 41, which is fixedly installed at the middle of both ends of the fixed template 1. Guide assemblies 42 are bolted to both the front and rear sides of both ends of the flow channel push plate 2. The drive assembly 41 includes a support member 411. A screw 412 is provided on one support member 411 via a bearing, and a guide rod is fixedly connected to the other support member 411. Adjustment blocks 414 are sleeved on the outer walls of both the screw 412 and the guide rod. A knob 415 is provided at the bottom of the screw 412. The guide assembly 42 includes a guide plate 421. One end of the guide plate 421 is set on the front and rear sides of the outer surface of both ends of the flow channel push plate 2 via screws. The other end of the guide plate 421 extends to the outside of the fixed template 1. Locking nuts 425 are provided on both the front and rear sides of the outer surface of both ends of the fixed template 1. A scale line 423 is provided on one side of the outer surface of the guide plate 421. An indicator head 426 is fixedly connected to one side of the outer surface of the locking nut 425.

[0028] Specifically, the support 411 is fixedly connected to the middle of the outer surfaces on both sides of the fixed template 1, the adjusting block 414 is fixedly connected to the middle of the outer surfaces on both sides of the flow channel push plate 2, and the top side of the screw 412 is fixedly connected to the limiting member 413 for limiting the adjusting block 414.

[0029] In this embodiment, the limiting member 413 moves on the screw 412, which can make the flow channel push plate 2 move away from the fixed template 1, thereby adjusting the distance between the fixed template 1 and the flow channel push plate 2.

[0030] Specifically, a T-shaped piece 424 is threaded onto the locking nut 425, and T-shaped grooves 422 are provided on both inner side walls of the guide plate 421. The inner wall of the T-shaped groove 422 is slidably connected to the outer wall of the T-shaped piece 424.

[0031] In this embodiment, when the flow channel push plate 2 moves, the T-shaped piece 424 slides within the T-shaped groove 422, further improving the stability of the stroke adjustment;

[0032] Specifically, the scale line 423 and the indicator head 426 are set in the same direction, and the indicator head 426 moves on the scale line 423;

[0033] In this embodiment, the operator can directly read the current stroke setting value, enabling precise and digital adjustment of the mold opening stroke.

[0034] In embodiment 2, a sliding rod 4151 is fixedly connected to the center of the bottom of the knob 415, a sliding plate 4152 is slidably connected to the outer wall of the sliding rod 4151, a spring 4153 is provided on the bottom side of the sliding plate 4152, and a plug rod 4154 is fixedly connected to both ends of the sliding plate 4152.

[0035] Specifically, the support member 411 has multiple insertion holes 4111 arranged in the circumferential direction at the bottom of the support member 411, and the insertion holes 4111 are inserted into the insertion rod 4154.

[0036] In this embodiment, after adjustment to the specified position, the sliding plate 4152 is released so that the insert rod 4154 is inserted into the closely arranged insertion holes 4111, thereby fixing the knob 415 and effectively preventing movement caused by vibration or accidental rotation during mold movement.

[0037] Working principle:

[0038] When adjusting the stroke, the operator first needs to pull down the sliding plate 4152, causing the spring 4153 to be compressed, which causes the insertion rod 4154 to disengage from the insertion hole 4111. Then, the knob 415 can be rotated, driving the screw 412 to rotate, causing the adjusting block 414 to move on the screw 412 and the guide rod. At the same time, the T-shaped part 424 slides in the T-shaped groove 422, thereby reducing or increasing the distance between the fixed template 1 and the flow channel push plate 2. During the turning process, the distance of the indicator head 426 pointing to the scale line 423 can be observed to precisely control the adjustment amount. For example, each rotation moves the scale one division, representing a stroke change of 1mm. After adjusting to the required stroke, the sliding plate 4152 is released, allowing the insertion rod 4154 to be inserted into the closely arranged insertion hole 4111, which can then fix the knob 415. The first parting stroke ends, achieving precise limit. Thus, the entire workflow is completed.

[0039] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on.

[0040] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0041] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0042] For those skilled in the art, various changes, modifications, substitutions, and alterations to these embodiments without departing from the principles and spirit of this utility model will still fall within the protection scope of this utility model.

Claims

1. A precise mold opening stroke adjustment structure for a three-plate injection mold, comprising a fixed mold plate (1), a runner ejector plate (2), and a moving mold base plate (3), characterized in that: A stroke adjustment mechanism (4) is installed between the fixed template (1) and the flow channel push plate (2); The stroke adjustment mechanism (4) includes a drive assembly (41), which is fixedly installed at the middle of both ends of the fixed template (1). Guide assemblies (42) are bolted to the front and rear sides of both ends of the flow channel push plate (2). The drive assembly (41) includes a support member (411). A screw (412) is provided on one support member (411) through a bearing. A guide rod is fixedly connected to the other support member (411). Adjustment blocks (414) are sleeved on the outer walls of the screw (412) and the guide rod. A knob (415) is provided at the bottom of the screw (412). The guide assembly (42) includes a guide plate (421). One end of the guide plate (421) is set on the front and rear sides of the outer surfaces of both ends of the flow channel push plate (2) by screws. The other end of the guide plate (421) extends to the outside of the fixed template (1). Locking nuts (425) are provided on the front and rear sides of the outer surfaces of both ends of the fixed template (1). Scale lines (423) are provided on one side of the outer surface of the guide plate (421). An indicator head (426) is fixedly connected to one side of the outer surface of the locking nut (425).

2. The precise mold opening stroke adjustment structure for a three-plate injection mold according to claim 1, characterized in that: The support member (411) is fixedly connected to the middle of the outer surface of both sides of the fixed template (1), and the adjusting block (414) is fixedly connected to the middle of the outer surface of both sides of the flow channel push plate (2).

3. The precise mold opening stroke adjustment structure for a three-plate injection mold according to claim 1, characterized in that: The top side of the screw (412) is fixedly connected to a limiting member (413) for limiting the adjustment block (414).

4. The precise mold opening stroke adjustment structure for a three-plate injection mold according to claim 1, characterized in that: The knob (415) is fixedly connected to the center of the bottom with a slide rod (4151), and a slide plate (4152) is slidably connected to the outer wall of the slide rod (4151). A spring (4153) is provided on the bottom side of the slide plate (4152), and a plug rod (4154) is fixedly connected to both ends of the slide plate (4152).

5. The precise mold opening stroke adjustment structure for a three-plate injection mold according to claim 1, characterized in that: The support member (411) has multiple insertion holes (4111) arranged in a circumferential direction at its bottom, and the insertion holes (4111) are connected to the insertion rod (4154).

6. The precise mold opening stroke adjustment structure for a three-plate injection mold according to claim 1, characterized in that: The locking nut (425) is threaded with a T-shaped piece (424), and the inner side walls of the guide plate (421) are provided with T-shaped grooves (422), and the inner wall of the T-shaped groove (422) is slidably connected to the outer wall of the T-shaped piece (424).

7. The precise mold opening stroke adjustment structure for a three-plate injection mold according to claim 1, characterized in that: The scale line (423) and the indicator head (426) are set in the same direction, and the indicator head (426) moves on the scale line (423).

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