Inclined ejection mechanism of injection mold

Abstract

The utility model relates to a pitched roof mechanism of an injection mold, which comprises a pitched roof rod and a pitched roof head positioned at the top of the pitched roof rod, a plurality of positioning mechanisms are arranged on the pitched roof head, each positioning mechanism comprises an insertion groove positioned on the pitched roof head and an insertion bump fixed on the mold, and the insertion bumps are inserted into the insertion grooves when the mold is in a closed state; the angle ejector head comprises a fixing seat, the positioning mechanism further comprises a fixing seat and a positioning block, the positioning block is fixed to the mold, the inserting groove is located in the fixing seat, and the inserting protruding block is located at the end of the positioning block; a sliding groove is formed in the fixing base, and the positioning block is arranged in the sliding groove in a sliding mode. Compared with the prior art, the positioning mechanism is arranged, the positioning block exactly moves to the end part of the sliding groove and the insertion convex block is inserted into the insertion groove in a mold closing state, so that the pitched roof in the mold closing state is positioned, and the pitched roof is prevented from being bent and falling outwards; a sliding groove is formed in a fixing base on the positioning mechanism, and a positioning block is arranged in the sliding groove in a sliding mode, so that guiding is achieved when the inclined ejector is ejected out.

Description

Technical Field

[0001] The utility model relates to an inclined ejector mechanism of an injection mold, belonging to the technical field of injection molds. Background Art

[0002] In the design process of injection molds, the internal undercuts of general plastic products are generally solved by core pulling with an inclined ejector mechanism. For example, the front shell of a vertical air conditioner is generally large in size and has many undercuts around the inside, so an inclined ejector is required for ejection. The existing inclined ejector mechanism is mainly composed of an inclined ejector guide slide (i.e., an inclined ejector T-block), an inclined ejector guide block, and an inclined ejector rod. The bottom end of the inclined ejector rod is connected to the inclined ejector guide slide, and the bottom end of the inclined ejector rod slides in the T-shaped slide of the inclined ejector guide slide. The inclined ejector guide block is installed at the bottom of the moving template, and an inclined hole is opened in the middle to cooperate with the inclined ejector rod to guide the inclined ejector rod. During the movement, the ejector rod of the injection molding machine pushes the bottom pin plate, and the ejector plate and the bottom pin plate move toward the moving template under the action of the thrust, driving the inclined ejector mechanism to eject in an oblique direction, and the inclined ejector of the inclined ejector rod removes the undercut of the product.

[0003] The inclined ejector rod of the existing inclined ejector mechanism is ejected in an inclined direction through an inclined ejector guide slide and an inclined ejector guide block. The inclined ejector rod extends from the male mold core to the ejector pin plate, and the inclined ejector rod is long. At the same time, with the development of science and technology, the front shell frame of the vertical air conditioner is getting narrower and the structure is getting more complicated. As the front shell frame becomes narrower, the thickness of the inclined ejector rod is also getting narrower. The narrower the thickness of the inclined ejector rod and the longer the inclined ejector rod, the more difficult the installation and positioning between the inclined ejector rod and the inclined ejector head are, and the installation is unstable. In addition, since the inclined ejector is high, there is a risk that the inclined ejector rod will bend and the inclined ejector will fall outward when the mold is closed. Utility Model Content

[0004] The utility model aims to provide a tilting ejector mechanism for an injection mold which can prevent the tilting ejector in a mold closing state from bending in view of the disadvantages of the prior art.

[0005] To achieve the purpose, the technical solution adopted by the utility model is:

[0006] The inclined ejector mechanism of the injection mold includes an inclined ejector rod and an inclined ejector head located at the top of the inclined ejector rod. The inclined ejector head is provided with a plurality of positioning mechanisms. The positioning mechanisms include an insertion groove located on the inclined ejector head and an insertion protrusion fixed on the mold. When the mold is in a closed state, the insertion protrusion is inserted into the insertion groove.

[0007] As a further optimization of the above technical solution: the inclined ejector head includes a fixed seat, the positioning mechanism also includes the fixed seat and a positioning block, the positioning block is fixed on the mold, the insertion groove is located on the fixed seat, and the insertion protrusion is located at the end of the positioning block.

[0008] As a further optimization of the above technical solution: a slide groove is formed on the fixed seat, the positioning block is slidably arranged in the slide groove, the insertion groove is located on the groove wall at the end of the slide groove, and when the mold is in a closed state, the positioning block moves to the end of the slide groove.

[0009] As a further optimization of the above technical solution: a fixing groove is formed on the inclined top head, connecting grooves are connected on both sides of the bottom of the fixing groove, the fixing groove includes a large groove and a small groove, a fixing step is formed between the large groove and the small groove, positioning steps are formed on both side surfaces of the fixing seat, the fixing seat is located in the fixing groove, the positioning step is in contact with the fixing step, and the rod of the first screw passes through the fixing seat and is fixed on the inclined top head.

[0010] As a further optimization of the above technical solution: it also includes a glue inlet, which is located on the inclined ejector head, and the hot runner is connected to the glue inlet to complete the glue injection.

[0011] As a further optimization of the above technical solution: a water channel is provided in the inclined ejector rod.

[0012] As a further optimization of the above technical solution: a first positioning block and a first positioning groove are provided at the top of the inclined ejector rod, a second positioning block and a second positioning groove are provided at the bottom of the inclined ejector head, the first positioning block is inserted into the second positioning groove, and the second positioning block is inserted into the first positioning groove.

[0013] As a further optimization of the above technical solution: a first mounting block is formed on the top of the inclined lift rod, the first positioning groove is located at the top of the first mounting block, a first mounting protrusion is formed on the side of the first mounting block, a first insertion inclined surface is formed on the first mounting protrusion, and a first mounting groove is formed between the first mounting protrusion and the top of the inclined lift rod.

[0014] As a further optimization of the above technical solution: a second mounting block is formed at the bottom of the inclined top head, the second positioning groove is located at the bottom of the second mounting block, a second mounting protrusion is formed on the side of the second mounting block, a second insertion inclined surface is formed on the second mounting protrusion, and a second mounting groove is formed between the second mounting protrusion and the bottom of the inclined top head.

[0015] As a further optimization of the above technical solution: the inclined ejector head is placed on the top of the inclined ejector rod, the second mounting protrusion is located in the first mounting groove, the first mounting protrusion is located in the second mounting groove, and the second screw is inserted from the side of the first mounting block and fixed on the second mounting block.

[0016] Compared with the prior art, the utility model provides a first mounting block and a second mounting block that are mutually engaged between the inclined ejector head and the inclined ejector rod, so as to realize the positioning between the inclined ejector rod and the inclined ejector head, facilitate the subsequent installation, and ensure the stable and reliable installation. The inclined ejector rod adopts a slot-type connection. Under the condition of ensuring the strength of the inclined ejector rod, the thickness of the thinnest part of the inclined ejector rod is 20mm, which creates space as much as possible for the product buckle core pulling. By setting a positioning mechanism, when the mold is in the mold closing state, the positioning block just moves to the end of the slide groove, and the insertion protrusion is inserted into the insertion groove to position the inclined ejector in the mold closing state, so as to prevent the inclined ejector from bending and falling outward. A slide groove is formed on the fixed seat on the positioning mechanism, and the positioning block is slidably arranged in the slide groove to realize the guidance of the inclined ejector head when it is ejected. The glue inlet is located on the inclined ejector head, and the hot runner and the glue inlet are connected to complete the glue feeding, thereby forming a latent glue inlet, which not only meets the product production needs, but also can use the ejection core pulling advantage of the inclined ejector rod to eject the product, without the need to design an ejection mechanism separately, and the structure is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model in the injection mold.

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model in an injection mold.

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the utility model.

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific implementations. Figure 1-4 As shown, the inclined ejector mechanism of the injection mold includes an inclined ejector rod 1 and an inclined ejector head 2 located at the top of the inclined ejector rod 1.

[0022] In the above technical solution: the top of the inclined ejector rod 1 is formed with a first mounting block 11, the side of the first mounting block 11 is formed with a first mounting protrusion 12, the first mounting protrusion 12 is formed with a first insertion inclined surface 13, and a first mounting groove 16 is formed between the first mounting protrusion 12 and the top of the inclined ejector rod 1. The top of the inclined ejector rod 1 is formed with a first positioning block 14, and the top of the first mounting block 11 is formed with a first positioning groove 15.

[0023] In the above technical solution: the bottom of the inclined ejector 2 is formed with a second mounting block 21, the side of the second mounting block 21 is formed with a second mounting protrusion 22, and the second mounting protrusion 22 is formed with a second insertion inclined surface 23. A second mounting groove 24 is formed between the second mounting protrusion 22 and the bottom of the inclined ejector 2. The bottom of the inclined ejector 2 is formed with a second positioning block 25, and the bottom of the second mounting block 21 is formed with a second positioning groove 26.

[0024] In the above technical scheme: the inclined ejector head 2 is placed on the top of the inclined ejector rod 1, the second mounting protrusion 22 is located in the first mounting groove 16, the first positioning block 14 is inserted into the second positioning groove 26, the first mounting protrusion 12 is located in the second mounting groove 24, and the second positioning block 25 is inserted into the first positioning groove 15, so that the first mounting block 11 and the second mounting block 21 are mutually engaged, and multiple sets of positioning between the inclined ejector rod 1 and the inclined ejector head 2 are completed, which is convenient for subsequent installation. After positioning, the second screw is inserted from the side of the first mounting block 11, and the screw rod is fixed on the second mounting block 21, so as to complete the fixation of the inclined ejector rod 1 and the inclined ejector head 2, and ensure stable and reliable installation. In the utility model, two inclined ejectors 1 are installed at the bottom of the inclined ejector head 2. The inclined ejector rod 1 adopts the above-mentioned slot-type connection. Under the condition of ensuring the strength of the inclined ejector rod, the thickness of the thinnest part of the inclined ejector rod 1 is 20 mm, which creates space as much as possible for the product buckle core pulling.

[0025] In the above technical solution: a plurality of positioning mechanisms 3 are provided on the bevel ejector 2, and the positioning mechanisms 3 include a fixed seat 31 and a positioning block 32. A slide groove 312 is formed on the fixed seat 31, and the positioning block 32 is fixed on the mold. The positioning block 32 is slidably set in the slide groove 312 to guide the bevel ejector 2 when it is ejected. An insertion groove 313 is formed on the groove wall at the end of the slide groove 312, and an insertion protrusion 321 is formed at the end of the positioning block 32. In the mold closing state, the positioning block 32 just moves to the end of the slide groove 312, and the insertion protrusion 321 is inserted into the insertion groove 313 to position the bevel ejector in the mold closing state, so as to prevent the bevel ejector from bending and falling outward. The positioning mechanism 3 realizes the guidance of the bevel ejector while realizing the positioning of the bevel ejector in the mold closing state.

[0026] In the above technical solution: the inclined top head 2 is formed with a fixing groove 27, and the two sides of the bottom of the fixing groove 27 are connected with connecting grooves 29, and the fixing groove 27 includes a large groove and a small groove, and a fixing step is formed between the large groove and the small groove. Positioning steps 311 are formed on both sides of the fixing seat 31, and the fixing seat 31 is located in the fixing groove 27, and the positioning step 311 is in contact with the fixing step, and the rod of the first screw passes through the fixing seat 31 and is fixed on the inclined top head 2.

[0027] In the above technical solution: it also includes a glue inlet 28, which is located on the inclined ejector 2. The hot runner and the glue inlet 28 are connected to complete the glue injection, thereby forming a latent glue inlet, which not only meets the product production needs, but also can use the ejection core pulling advantage of the inclined ejector to eject the product. There is no need to design an ejection mechanism separately, and the structure is simple.

[0028] In the above technical solution: a water channel 17 is also provided inside the inclined ejector rod 1 .

[0029] The preferred specific embodiments of the present utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the present utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the present utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should fall within the protection scope of the present utility model.

Claims

1. A tilting ejector mechanism for an injection mold, comprising a tilting ejector rod (1) and a tilting ejector head (2) located at the top of the tilting ejector rod (1), characterized in that The inclined ejector head (2) is provided with a plurality of positioning mechanisms (3), the positioning mechanisms (3) comprising an insertion groove (313) located on the inclined ejector head (2) and an insertion protrusion (321) fixed on the mold; when the mold is in a closed state, the insertion protrusion (321) is inserted into the insertion groove (313).

2. The tilting mechanism of the injection mold according to claim 1, characterized in that The inclined ejector head (2) comprises a fixed seat (31), and the positioning mechanism (3) further comprises the fixed seat (31) and a positioning block (32), wherein the positioning block (32) is fixed on the mold, the insertion groove (313) is located on the fixed seat (31), and the insertion protrusion (321) is located at the end of the positioning block (32).

3. The tilting mechanism of the injection mold according to claim 2, characterized in that The fixed seat (31) is provided with a slide groove (312), the positioning block (32) is slidably arranged in the slide groove (312), the insertion groove (313) is located on the groove wall at the end of the slide groove (312), and when the mold is in a closed state, the positioning block (32) moves to the end of the slide groove (312).

4. The tilting mechanism of the injection mold according to claim 2, characterized in that The inclined ejector head (2) is provided with a fixing groove (27), and connecting grooves (29) are connected to both sides of the bottom of the fixing groove (27). The fixing groove (27) includes a large groove and a small groove, and a fixing step is formed between the large groove and the small groove. Positioning steps (311) are provided on both side surfaces of the fixing seat (31), and the fixing seat (31) is located in the fixing groove (27). The positioning step (311) and the fixing step are in contact with each other, and the shank of the first screw passes through the fixing seat (31) and is fixed to the inclined ejector head (2).

5. The tilting mechanism of the injection mold according to claim 1, characterized in that It also includes a glue inlet (28), which is located on the inclined ejector head (2), and the hot runner and the glue inlet (28) are connected to complete the glue injection.

6. The tilting mechanism of the injection mold according to claim 1, characterized in that A water channel (17) is provided inside the inclined ejector rod (1).

7. The tilting mechanism of the injection mold according to claim 1, characterized in that The top of the inclined ejector rod (1) is provided with a first positioning block (14) and a first positioning groove (15), and the bottom of the inclined ejector head (2) is provided with a second positioning block (25) and a second positioning groove (26), the first positioning block (14) is inserted into the second positioning groove (26), and the second positioning block (25) is inserted into the first positioning groove (15).

8. The tilting mechanism of the injection mold according to claim 7, characterized in that A first mounting block (11) is formed at the top of the inclined lift rod (1), the first positioning groove (15) is located at the top of the first mounting block (11), a first mounting protrusion (12) is formed on the side of the first mounting block (11), a first insertion inclined surface (13) is formed on the first mounting protrusion (12), and a first mounting groove (16) is formed between the first mounting protrusion (12) and the top of the inclined lift rod (1); A second mounting block (21) is formed at the bottom of the inclined ejector head (2), the second positioning groove (26) is located at the bottom of the second mounting block (21), a second mounting protrusion (22) is formed on the side of the second mounting block (21), a second insertion inclined surface (23) is formed on the second mounting protrusion (22), and a second mounting groove (24) is formed between the second mounting protrusion (22) and the bottom of the inclined ejector head (2); The inclined ejector head (2) is placed on the top of the inclined ejector rod (1), the second mounting protrusion (22) is located in the first mounting groove (16), the first mounting protrusion (12) is located in the second mounting groove (24), and the second screw is inserted from the side of the first mounting block (11) and fixed on the second mounting block (21).

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