Inclined pulling sliding block mechanism of double-color injection mold and double-color injection mold

Abstract

The utility model relates to the field of injection molds, and discloses an inclined pulling slide block mechanism of a double-color injection mold and the double-color injection mold, the inclined pulling slide block mechanism comprises a base, the top of the base is fixedly connected with a lower mold, the top of the lower mold is provided with an upper mold, the top of the base is provided with a forming structure, and the forming structure comprises a slide block. A lower pressing block is fixedly connected to the outer wall of the upper mold, an embedding groove is formed in the lower surface of the lower pressing block, an inclined drawer is fixedly connected to the inner wall of the embedding groove, an inserting groove is formed in the upper surface of the sliding block, a guiding assembly is arranged on the surface of the sliding block, a buffering assembly is arranged on the surface of the sliding block, and the guiding assembly comprises a guiding groove. The inner wall of the guide groove is slidably connected with a guide block, and the side wall of the guide block is fixedly connected with a reset spring. According to the injection mold, the molding structure is arranged, so that the mold closing degree of the upper mold and the lower mold is ensured, and the molding effect of an injection product is improved.

Description

Technical Field

[0001] The utility model relates to the field of injection molds, in particular to an inclined-drawing slider mechanism and a two-color injection mold of a two-color injection mold. Background Technique

[0002] An injection molding machine two-color mold is a mold that can inject two colors or materials simultaneously. The two-color mold usually consists of two or more injection devices, a rotating mechanism, and one or more molds. The rotating mechanism drives the mold to rotate and move so as to inject two colors or materials into the same part during the injection molding process.

[0003] After retrieval, the Chinese patent publication number: CN219133135U discloses an inclined-drawing slider mechanism of a two-color injection mold. The inclined-drawing slider mechanism of the two-color injection mold can reserve a soft glue inlet in the injection-molded hard glue semi-finished product and jointly form an injection channel for the soft glue layer with the hard glue semi-finished product, improving the production efficiency and production quality of the soft glue encapsulating hard glue product.

[0004] In the above technical solution, the inclined-drawing slider mechanism is used to improve the production efficiency of the product. However, during the injection molding process, the slider lacks positioning and guiding functions, thus reducing the mold closing effect of the upper and lower molds. At the same time, the lack of a buffer function of the slider will cause a certain impact on the mold during the movement process, thereby reducing the molding degree of the injection-molded product. Therefore, an inclined-drawing slider mechanism and a two-color injection mold of a two-color injection mold are proposed to solve the above problems. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides an inclined-drawing slider mechanism and a two-color injection mold of a two-color injection mold, aiming to improve the problems that in the prior art, the inclined-drawing slider mechanism and the two-color injection mold of the two-color injection mold lack the function of providing positioning and guiding for the slider, reducing the mold closing effect of the upper and lower molds, and at the same time, the slider causes a certain impact on the mold, resulting in a reduction in the molding degree.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: an inclined-drawing slider mechanism and a two-color injection mold of a two-color injection mold, including a base, a lower mold is fixedly connected to the top of the base, an upper mold is arranged on the top of the lower mold, a molding structure is arranged on the top of the base, the molding structure includes a slider, a pressing block is fixedly connected to the outer wall of the upper mold, an embedding groove is opened on the lower surface of the pressing block, an inclined-drawing is fixedly connected to the inner wall of the embedding groove, a slot is opened on the upper surface of the slider, a guiding component is arranged on the surface of the slider, and a buffer component is arranged on the surface of the slider.

[0007] As a further description of the above technical solution:

[0008] The inner wall of the lower mold is provided with a cooling cavity, the inner wall of the cooling cavity is fixedly connected with a copper pipe, the outer wall of the lower mold is provided with an air inlet hole, the inner wall of the lower mold is fixedly connected with an exhaust pipe, and a one-way valve is arranged on the surface of the exhaust pipe.

[0009] As a further description of the above technical solution:

[0010] The guiding component includes a guiding groove, a guiding block is slidably connected to the inner wall of the guiding groove, a reset spring is fixedly connected to the side wall of the guiding block, a positioning rod is fixedly connected to the side wall of the slider, and a positioning hole is provided on the outer wall of the lower mold.

[0011] As a further description of the above technical solution:

[0012] The buffering component includes an installation groove, an airbag is fixedly connected to the inner wall of the installation groove, a telescopic spring is fixedly connected to the inner wall of the airbag, and an air inlet pipe is fixedly connected to the inner wall of the airbag.

[0013] As a further description of the above technical solution:

[0014] The guiding groove is opened on the upper surface of the base, and the bottom of the slider is fixedly connected to the upper surface of the guiding block.

[0015] As a further description of the above technical solution:

[0016] The installation groove is opened on one side of the slider close to the lower mold.

[0017] As a further description of the above technical solution:

[0018] The inner wall of the lower mold is fixedly connected with an oil inlet pipe, the port of the oil inlet pipe is fixedly connected with an oil pump, the surface of the lower mold is provided with a gas collecting cavity, and air blowing holes are arranged inside the gas collecting cavity.

[0019] As a further description of the above technical solution:

[0020] The bottom of the oil pump is fixedly connected to the upper surface of the base, and the air blowing holes penetrate through to the mold cavity of the lower mold.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, through the cooperation of the slider and the pressing block, the inclined draw can be inserted into the slot. The guiding block slides inside the guiding groove, and through the elastic force of the reset spring, it can provide guiding and accelerate the reset function for the slider when it moves. The cooperation of the positioning rod and the positioning hole, and the airbag can reduce the impact of the slider on the lower mold, thereby ensuring the mold clamping degree of the upper and lower molds and improving the forming effect of the injection molded product.

[0023] 2. In the present utility model, the copper pipe in the cooling cavity is arranged to drive the air flow in the cooling cavity by the gas discharged from the airbag. After the oil pump discharges the lubricating oil into the lower mold, the slider reciprocates close to the lower mold, and the gas in the cooling cavity can be discharged from the air blowing holes, avoiding the accumulation of lubricating oil at one position of the mold groove, improving the uniformity of the lubricating oil contacted by the upper and lower molds, reducing the friction between the injection liquid and the mold, and thus accelerating the demolding. Description of the Drawings

[0024] Figure 1 It is a top view schematic diagram of the inclined extraction slider mechanism of a two-color injection mold and the main structure of the two-color injection mold proposed by the present utility model;

[0025] Figure 2 It is a bottom view schematic diagram of the inclined extraction slider mechanism of a two-color injection mold and the main structure of the two-color injection mold proposed by the present utility model;

[0026] Figure 3 It is a right view schematic diagram of removing the upper mold of the inclined extraction slider mechanism of a two-color injection mold and the main structure of the two-color injection mold proposed by the present utility model;

[0027] Figure 4 It is a separation schematic diagram of the base and the slider of the inclined extraction slider mechanism of a two-color injection mold and the two-color injection mold proposed by the present utility model;

[0028] Figure 5 It is of the inclined extraction slider mechanism of a two-color injection mold and the two-color injection mold proposed by the present utility model Figure 4 and the enlarged schematic diagram of area A therein.

[0029] Legend Explanation:

[0030] 1. Base; 2. Lower mold; 3. Upper mold; 4. Slider; 5. Lower pressing block; 6. Embedded groove; 7. Inclined extraction; 8. Slot; 9. Guide groove; 10. Guide block; 11. Return spring; 12. Positioning rod; 13. Positioning hole; 14. Installation groove; 15. Airbag; 16. Telescopic spring; 17. Air inlet pipe; 18. Cooling cavity; 19. Copper pipe; 20. Air inlet hole; 21. Exhaust pipe; 22. Check valve; 23. Oil inlet pipe; 24. Oil pump; 25. Air blowing hole; 26. Gas collecting cavity. Specific Embodiment

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0032] Referring to Figures 1 - 3 , an embodiment provided by the present utility model: an inclined extraction slider mechanism and a two-color injection mold of a two-color injection mold, including a base 1, a lower mold 2 is fixedly connected to the top of the base 1, an upper mold 3 is arranged on the top of the lower mold 2, and two groups of mold grooves are clamped on the surface of the lower mold 2, which can inject injection liquid of different colors. Through the pressing of the upper mold 3 and the lower mold 2, the injection liquid is formed. A forming structure is arranged on the top of the base 1. The forming structure includes a slider 4. A pressing block 5 is fixedly connected to the outer wall of the upper mold 3. An embedding groove 6 is opened on the lower surface of the pressing block 5. The embedding groove 6 is convenient for installing an inclined extraction 7. The outer wall of the inclined extraction 7 is adapted to the inner wall of the slot 8. The inner wall of the embedding groove 6 is fixedly connected with the inclined extraction 7. A slot 8 is opened on the upper surface of the slider 4. A guiding component is arranged on the surface of the slider 4, and a buffering component is arranged on the surface of the slider 4.

[0033] Referring to Figures 3 - 5 , the guiding component includes guiding grooves 9. There are two groups of guiding grooves 9, and the two groups of guiding grooves 9 are symmetrically arranged with the central axis of the base 1 as the axis of symmetry. The number of guiding blocks 10 and return springs 11 is the same as that of the guiding grooves 9. The inner wall of the guiding groove 9 is slidably connected with the guiding block 10. A return spring 11 is fixedly connected to the side wall of the guiding block 10. Four positioning rods 12 are fixedly connected to the side wall of the slider 4, and the four positioning rods 12 are distributed on the outer wall of the slider 4 in a rectangular array. A positioning hole 13 is opened on the outer wall of the lower mold 2. The inner wall of the positioning hole 13 is adapted to the outer wall of the positioning rod 12, and can be inserted into the interior when the slider 4 approaches the lower mold 2 to ensure the clamping degree of the slider 4. The buffering component includes an installation groove 14. An airbag 15 is fixedly connected to the inner wall of the installation groove 14. The airbag 15 can suck air into it through an air inlet pipe 17 when the slider 4 moves away from the lower mold 2. A telescopic spring 16 is fixedly connected to the inner wall of the airbag 15. An air inlet pipe 17 is fixedly connected to the inner wall of the airbag 15. The air inlet pipe 17 is adapted to the inner wall of the air inlet hole 20. When the slider 4 drives the airbag 15 to fit with the lower mold 2, the air inlet pipe 17 can be inserted into the air inlet hole 20. The guiding groove 9 is opened on the upper surface of the base 1. The bottom of the slider 4 is fixedly connected to the upper surface of the guiding block 10. The guiding block 10 can drive the slider 4 to move for guiding. The installation groove 14 is opened on one side of the slider 4 close to the lower mold 2.

[0034] Referring to Figure 1 andFigure 4 , a cooling cavity 18 is provided on the inner wall of the lower mold 2. The cooling cavity 18 is used to install a copper pipe 19. The inside of the copper pipe 19 is filled with a coolant, and the copper pipe 19 is connected to an external circulating cooling water machine to provide a cooling function for the lower mold 2. Due to the characteristics of the material, the copper pipe 19 has good thermal conductivity and can transfer the cooling cold source to the lower mold 2. The inner wall of the cooling cavity 18 is fixedly connected with the copper pipe 19. An air inlet hole 20 is provided on the outer wall of the lower mold 2, and an exhaust pipe 21 is fixedly connected to the inner wall of the lower mold 2. The exhaust pipe 21 can discharge the gas in the cooling cavity 18, and a one-way valve 22 is provided on the surface of the exhaust pipe 21.

[0035] Refer to Figures 3 - 4 , an oil inlet pipe 23 is fixedly connected to the inner wall of the lower mold 2. The oil inlet pipe 23 is a three-way pipe and can convey lubricating oil to two sets of mold grooves of the lower mold 2. The port of the oil inlet pipe 23 is fixedly connected with an oil pump 24. The oil pump 24 can access an external pipeline to pump lubricating oil into the lower mold 2 to reduce the friction between the mold and the injection molding material, thereby facilitating demolding. An air collecting cavity 26 is provided on the surface of the lower mold 2, and air blowing holes 25 are provided inside the air collecting cavity 26. The air blowing holes 25 can input gas into the inside of the lower mold 2 through the exhaust pipe 21. The bottom of the oil pump 24 is fixedly connected to the upper surface of the base 1, and the air blowing holes 25 penetrate into the mold grooves of the lower mold 2.

[0036] Working principle: Use the oil pump 24 to discharge lubricating oil into the lower mold 2 through the oil inlet pipe 23, and then reciprocally lift and lower the upper mold 3. The upper mold 3 will drive the lower pressing block 5 to gradually descend, so that the inclined slide 7 gradually inserts into the inside of the slot 8. When the inclined slide 7 matches the slot 8, the slider 4 will, due to the continuous descent of the upper mold 3, pull the guiding block 10 to gradually move closer to the lower mold 2 side in the guiding groove 9 until the positioning rod 12 inserts into the positioning hole 13. At the same time, the airbag 15 is compressed and the telescopic spring 16 is in a compressed state. The air inlet pipe 17 can insert into the air inlet hole 20. Repeating the above steps, the air sucked into the airbag 15 once can be reciprocally discharged into the air collecting cavity 26 and finally blown into the mold grooves of the lower mold 2 through the air blowing holes 25. When the upper mold 3 reciprocally contacts the lower mold 2, air is blown into the lower mold 2 to prevent the discharged lubricating liquid from accumulating in one place, accelerate the flow rate of the lubricating liquid in the lower mold 2, ensure the uniformity of the upper mold 3 contacting the lubricating oil. Finally, the injection molding liquid is poured into the lower mold 2, the upper mold 3 descends and presses against the lower mold 2, and the slider 4 gradually approaches the lower mold 2, increasing the tightness between the slider 4 and the lower mold 2. At the same time, the airbag 15 can reduce the impact force generated when the slider 4 approaches the lower mold 2 and ensure the stability of the mold clamping between the lower mold 2 and the upper mold 3.

[0037] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. The inclined ejector slider mechanism of a two-color injection mold, including a base (1), the top of the base (1) is fixedly connected with a lower mold (2), and an upper mold (3) is arranged on the top of the lower mold (2), characterized in that: A forming structure is provided at the top of the base (1). The forming structure includes a slider (4). A pressing block (5) is fixedly connected to the outer wall of the upper mold (3). An embedding groove (6) is formed on the lower surface of the pressing block (5). An inclined draw (7) is fixedly connected to the inner wall of the embedding groove (6). A slot (8) is formed on the upper surface of the slider (4). A guiding assembly is arranged on the surface of the slider (4), and a buffering assembly is arranged on the surface of the slider (4).

2. The inclined sliding block mechanism of the two-color injection mold according to claim 1, characterized in that: A cooling cavity (18) is formed in the inner wall of the lower mold (2). A copper pipe (19) is fixedly connected to the inner wall of the cooling cavity (18). An air inlet hole (20) is formed in the outer wall of the lower mold (2). An exhaust pipe (21) is fixedly connected to the inner wall of the lower mold (2). A one-way valve (22) is arranged on the surface of the exhaust pipe (21).

3. The inclined ejection slider mechanism of the two-color injection mold according to claim 1, characterized in that: The guiding assembly includes a guiding groove (9). A guiding block (10) is slidably connected to the inner wall of the guiding groove (9). A reset spring (11) is fixedly connected to the side wall of the guiding block (10). A positioning rod (12) is fixedly connected to the side wall of the slider (4). A positioning hole (13) is formed in the outer wall of the lower mold (2).

4. The inclined ejector slider mechanism of the two-color injection mold according to claim 1, characterized in that: The buffering assembly includes an installation groove (14). An airbag (15) is fixedly connected to the inner wall of the installation groove (14). A telescopic spring (16) is fixedly connected to the inner wall of the airbag (15). An air inlet pipe (17) is fixedly connected to the inner wall of the airbag (15).

5. The inclined sliding block mechanism of the two-color injection mold according to claim 3, characterized in that: The guiding groove (9) is formed on the upper surface of the base (1). The bottom of the slider (4) is fixedly connected to the upper surface of the guiding block (10).

6. The inclined sliding block mechanism of the two-color injection mold according to claim 4, characterized in that: The installation groove (14) is formed on one side of the slider (4) close to the lower mold (2).

7. Two-color injection mold, characterized in that: An inclined draw slider mechanism of the two-color injection mold according to any one of claims 1 to 6. An oil inlet pipe (23) is fixedly connected to the inner wall of the lower mold (2). An oil pump (24) is fixedly connected to the port of the oil inlet pipe (23). An air collecting cavity (26) is formed on the surface of the lower mold (2). An air blowing hole (25) is arranged inside the air collecting cavity (26).

8. The two-color injection mold according to claim 7, characterized in that: The bottom of the oil pump (24) is fixedly connected to the upper surface of the base (1). The air blowing hole (25) penetrates through to the mold cavity of the lower mold (2).

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