A T-block type inclined ejector mechanism used in a mold

Abstract

This invention relates to the field of mold injection molding technology, specifically a T-block type inclined ejector mechanism for use in molds. The mechanism includes a base and a straight ejector. The base is T-shaped and fixed to an upper ejector plate. A fixing screw is fixedly installed below the upper ejector plate and connects it to a lower ejector plate. A straight ejector column is fixedly fitted above the T-shaped base, and a straight ejector is positioned above the column. One side of the straight ejector has a track groove, on which a T-block is connected. A limit device is installed above the T-block. The straight ejector can move along the track groove between itself and the T-block. This invention reduces the overall height of the inclined ejector, preventing breakage when ejecting products with high ejection heights.

Description

[Technical Field]

[0001] This invention relates to the field of mold injection technology, specifically a T-block type inclined ejector mechanism for use in molds. [Background Technology]

[0002] In today's society, molds are increasingly widely used in industry, earning them the title of "mother of industry." Among them, injection molds are particularly important, serving as the main fixtures for industrial product manufacturing. In injection mold production, since the product is formed inside the mold, ejection mechanisms such as angled ejectors are needed to eject the formed product. Currently, because some products are very tall during molding, angled ejectors are usually designed to be tall and narrow in order to accommodate the product and mold mechanism. In addition, due to the height issue, the space for the latches inside the mold to retract is limited. As a result, the overall strength of the angled ejector is relatively weak, making it easy for it to break during ejection and for the mold to tip over, thus preventing the product from being removed.

[0003] In view of this, it is necessary to invent a sloping ejection mechanism that can adapt to this situation in order to solve the above problems. [Summary of the Invention]

[0004] Therefore, the object of the present invention is to provide a T-block type inclined ejector mechanism for use in a mold.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A T-block type inclined ejector mechanism for use in a mold includes a base and a straight ejector. The base is T-shaped with a T-shaped groove. The base is located on an upper ejector plate. A fixing screw supports the upper ejector plate and fixes it to a lower ejector plate. The base engages with a wedge-shaped groove at the bottom of the T-shaped straight ejector. A track groove runs through both ends of the straight ejector on one side. A T-block is mounted on the track groove and moves within it. A limiting device is positioned diagonally above the T-block.

[0007] Both the upper ejector plate and the lower ejector plate are metal plates.

[0008] On one side of the T-shaped block, two protruding track blocks are provided to match the track groove.

[0009] The track groove is a straight-topped motion track.

[0010] The vertical trajectory of the straight-up motion is an inclined plane.

[0011] Before displacement, the straight-pole column does not contact the T-block inside the straight-pole column; after displacement, it comes into contact with the T-block.

[0012] The limiting device is fixed inside the mold and includes a screw, on which a telescopic spring is fixedly mounted.

[0013] The telescopic spring serves to limit the displacement of the T-block and prevent it from popping out.

[0014] Compared to existing technologies where the angled ejector pin breaks when the product ejection height is high, this invention increases the distance and reduces the overall length of the angled ejector pin by moving the straight ejector pin upwards on the inclined surface, thus preventing the angled ejector pin from breaking and making it easier to polish and grind in the mold. [Attached Image Description]

[0015] Figure 1 This is a side view of the inclined top mechanism of the present invention.

[0016] Figure 2 This is a schematic diagram of the T-shaped base of the inclined top mechanism of the present invention.

[0017] Figure 3 This is a schematic diagram of the direct-top structure of the present invention and its direction of movement.

Detailed Implementation Methods

[0018] To further understand the purpose, technical effects, and technical means of the present invention, a detailed description is provided below in conjunction with the accompanying drawings. The present invention is a T-block type inclined ejector mechanism for use in a mold, comprising the following parts: a base (1), and a straight ejector (2);

[0019] The base (1) is the bottom support part of the inclined top mechanism. The center part of its surface is a groove (11). The groove (11) is T-shaped and is also called a T-shaped groove (11). It matches and connects with the bottom of the straight top column (23) of the straight top (2). The base (1) is also called a T-shaped base (1). The bottom of the T-shaped base (1) is provided with a lower top plate (12). Two fixing screws (13) in the vertical direction are fixed on the lower top plate (12). 3) It is fixedly connected to the upper T-shaped base (1). The base is connected, the lower ejector plate (12) and the upper ejector plate (14) are both metal plates, and the T-shaped base (1) is located at the upper ejector plate (14). When the injection molding is completed and the mold is opened, the upper ejector plate (14) and the lower ejector plate (12) together give the T-shaped base (1) an upward thrust in the vertical direction, so that the straight ejector (2) can move along the inclined surface of the T-shaped groove between it and the T-block (22) inside the straight ejector;

[0020] The straight pusher (2) is the movable ejection device at the top of the entire inclined pusher mechanism, used to eject the product. The straight pusher (2) is rectangular in shape in top view, and two track grooves (27) are respectively provided at both ends of one side of the straight pusher (2). The track grooves (27) are the matching points between the straight pusher (2) and the T-block (22). In addition, the track grooves (27) are the movement tracks of the straight pusher (2). In the vertical direction, it is an inclined plane. The track grooves (27) run through the entire straight pusher (2). The straight pusher (2) is fixedly supported and connected by a straight pusher column (23) below the straight pusher (2). The column body of the straight pusher column (23) is cuboid. In the vertical direction, its bottom part is provided with an inwardly recessed wedge-shaped groove (26). The column body of the straight pusher column (23) below the wedge-shaped groove (26) is T-shaped, and its end part is embedded together with the wedge-shaped groove (26). The base (1) is fitted into a T-shaped groove (11). In addition, a T-shaped block (22) is provided in the straight top (2) and slidably connected to it. On one side of the T-shaped block (22), there are two track blocks (28). The track block (28) is a protrusion on the surface of the T-shaped block (22) and is movably connected to the track groove (27) of the straight top (2). In addition, a limiting device (26) is fixedly provided above the T-shaped block (22). The limiting device (26) includes a screw (24). The screw (24) is fixed inside the mold mechanism (not shown in the figure). A telescopic spring (25) is fixedly provided on the screw (24). The other end of the telescopic spring (25) is in close contact with the T-shaped block (22) and restricts the movement of the T-shaped block (22). The screw (24) and the telescopic spring (25) are inclined at an angle to control the T-shaped block (22).

[0021] When the injection molding is completed and the product needs to be removed, the machine (not shown in the figure) applies a vertical upward force to the lower ejector plate (12) and the upper ejector plate (14). Driven by the ejector plate, the straight ejector (23) moves upward a certain distance. Assuming the stroke is S, during the stroke S, the straight ejector (2) moves along the track groove (27) that is movably connected between it and the track block (28) of the T-block (22) under the driving force. Since the track groove (27) is a sloping track in the vertical direction, the movement trajectory of the straight ejector (2) is sloping upward. Inside the mold mechanism, there is a reserved space on the sloping track in the direction of movement of the straight ejector (2) for its movement. During stroke S, only the straight ejector (2) performs the ejection motion. The straight ejector pin (23) does not directly contact the T block (22). The telescopic spring (25) above the T block (22) generates elastic force to restrict the T block (22) and prevent it from being displaced and ejected due to the movement of the straight ejector (2). During stroke S, the movement of the straight ejector (2) causes the hook in the mold (not shown in the figure) to disengage from the product. After stroke S ends, the straight ejector (2) moves upward along the T groove surface for a distance. The straight ejector pin (23) then directly contacts the T block (22). The machine (not shown in the figure) applies a pushing force to the upper ejector plate (14) and the lower ejector plate (12), causing the straight ejector pin (23) to simultaneously push the straight ejector (2) and the T block (22) to eject the product.

[0022] The above-described implementation method is more reasonable. Compared with the past, the inclined ejector mechanism of the present invention has a shorter overall length because its straight ejector can move upward along the inclined surface, thus reducing the length of the inclined pin. Therefore, its strength is sufficient and it is not easy for the inclined pin to break when the ejection height is high. In addition, when the straight ejector is not ejected, it occupies less height, which is more conducive to polishing and grinding inside the mold.

[0023] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the invention and should not be construed as limiting the scope of protection of the invention in any way. Based on this explanation, those skilled in the art can conceive of other specific embodiments of the invention without creative effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. A T-block type inclined ejector mechanism for use in a mold, comprising a base and a straight ejector, characterized in that: The base is a T-shaped base with a T-shaped groove. The base is located on the upper ejector plate. The upper ejector plate is supported by a fixing screw, which is fixed to the lower ejector plate. The base engages with the wedge-shaped groove at the bottom of the T-shaped straight ejector column. A track groove is provided on one side of the straight ejector column, passing through both ends. A T-block is provided on the track groove and moves in accordance with it. A limit device is provided diagonally above the T-block. The straight pusher has a first movement stage and a second movement stage: in the first movement stage, the straight pusher remains separated from the T-block, and the straight pusher slides along the track groove relative to the T-block; after the first movement stage ends, the straight pusher contacts the T-block; in the second movement stage, the straight pusher simultaneously pushes the straight pusher and the T-block. The limiting device is fixed inside the mold and includes a screw. A telescopic spring is fixedly installed on the screw. The telescopic spring restricts the displacement of the T-block and prevents it from popping out during the first movement phase.

2. The T-block type inclined ejector mechanism for use in a mold according to claim 1, characterized in that: Both the upper ejector plate and the lower ejector plate are metal plates.

3. The T-block type inclined ejector mechanism for use in a mold according to claim 1, characterized in that: On one side of the T-block, two protruding track blocks are provided to fit into the track groove.

4. The T-block type inclined ejector mechanism for use in a mold according to claim 3, characterized in that: The vertical trajectory of the straight-up motion is an inclined plane.

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