Automatic core-pulling type injection mold

Abstract

The utility model provides an automatic core-pulling type injection mold which comprises a containing box, a lower mold is fixedly connected to the top of the containing box, core-pulling mechanisms are arranged on the two side faces of the lower mold, an upper mold capable of ascending and descending is arranged above the lower mold through a telescopic mechanism, a second ventilation cavity is formed in the lower mold, and a first ventilation cavity is formed in the lower mold. A first ventilation cavity is formed in the upper mold, and exhaust ports are formed in the surface of the lower mold and the surface of the upper mold. According to the automatic core-pulling type injection mold, after an air pump works, air flow is injected into a flow dividing disc, the air flow is divided and guided through two air outlet pipes, then the air flow is injected into a first ventilation cavity, and then the upper mold and the lower mold are cooled; the lower mold and the upper mold can be well cooled through heat exchange, then a workpiece in the mold cavity can be cooled through heat exchange, the cooling efficiency of the workpiece is improved, and the mold can be rapidly subjected to core pulling and demolding.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an automatic core-pulling injection mold. Background Art

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automated operation, a wide variety of patterns and colors, shapes from simple to complex, sizes from large to small, and precise product dimensions. The product is easy to update and can be made into parts with complex shapes.

[0003] Chinese patent CN218286577U discloses an automated core-pulling injection mold. This technical solution, by setting a core-pulling mechanism, when the electric push rod pushes the movable plate to move upward, the gear rotates to make the threaded rod move horizontally, so that two cores are pulled out from the molding cavity, and at the same time, the upper mold is driven to move upward to separate the upper mold and the lower mold. After the core is pulled out, the lower mold and the upper mold can be separated. Automation saves time and labor, thereby improving the demolding efficiency; however, the core-pulling injection mold does not have a cooling function during use, resulting in low cooling efficiency of the workpiece, and the core cannot be quickly pulled out and demolded, reducing the production efficiency of the core-pulling injection mold.

[0004] Therefore, it is necessary to provide a new automated core-pulling injection mold to solve the above-mentioned technical problems. Summary of the invention

[0005] The utility model provides an automated core-pulling injection mold, which solves the technical problem that the core-pulling injection mold does not have a cooling function during use, resulting in low cooling efficiency of the workpiece, inability to quickly pull the core and demould, and reducing the production efficiency of the core-pulling injection mold.

[0006] In order to solve the above technical problems, the utility model provides an automated core-pulling injection mold, comprising a containing box, a lower mold is fixedly connected to the top of the containing box, core-pulling mechanisms are arranged on both sides of the lower mold, and an upper mold that can be raised and lowered is arranged above the lower mold through a telescopic mechanism;

[0007] A second ventilation cavity is provided inside the lower mold, a first ventilation cavity is provided inside the upper mold, exhaust ports are provided on the surfaces of the lower mold and the upper mold, the two exhaust ports are respectively connected to the first ventilation cavity and the second ventilation cavity, an air pump is provided in the inner cavity of the containing box, the air outlet of the air pump is connected to a diverter plate, the surface of the diverter plate is connected to two outlet pipes, the two outlet pipes are respectively connected to the first ventilation cavity and the second ventilation cavity.

[0008] Preferably, the telescopic mechanism includes a first electric telescopic rod, which is fixedly arranged on the top of the containing box, the top of the first electric telescopic rod is fixedly connected with a cross plate, the lower surface of the cross plate is fixedly connected with the top of the upper mold, and the top of the upper mold is connected with an injection molding tube.

[0009] Preferably, the core pulling mechanism includes a second electric telescopic rod and a cavity, the second electric telescopic rod is transversely arranged on the side wall of the lower mold, the cavity is opened inside the lower mold, one end of the second electric telescopic rod can be movably extended into the cavity, and is fixedly connected with a mold core, and the inner end of the mold core can be pulled and extended to the mold cavity of the lower mold.

[0010] Preferably, a dustproof net is fixedly connected to the interior of the exhaust port.

[0011] Preferably, the surfaces of the lower mold and the upper mold are both connected with connecting pipes, the two connecting pipes are respectively connected with the first ventilation cavity and the second ventilation cavity, and the other end of the air outlet pipe is connected with the outer end of the connecting pipe through a flange.

[0012] Preferably, the air inlet of the air pump is connected to an air inlet pipe, the other end of the air inlet pipe extends to the outside of the containing box, and a filter is fixedly connected to the inside of the air inlet pipe.

[0013] Preferably, a maintenance box door is detachably connected to the surface of the containing box via a plurality of bolts, and an observation window is provided on the surface of the maintenance box door.

[0014] Compared with the related art, the automatic core-pulling injection mold provided by the utility model has the following beneficial effects:

[0015] The utility model provides an automated core-pulling injection mold, which drives the upper mold to descend to contact and splice with the top of the lower mold through a telescopic mechanism to form a complete mold, and then the injection molding process can begin. After the injection molding process is completed, the air pump works to inject air into the inside of the diverter plate, and after the air flow is diverted and guided by two air outlet pipes, the air flow is injected into the inside of the first ventilation cavity, thereby cooling the upper mold and the lower mold, and after the air flow with heat is discharged through the exhaust port, the lower mold and the upper mold can be better cooled, and then the workpiece in the mold cavity can be cooled by heat exchange, thereby improving the cooling efficiency of the workpiece, so that the mold can be quickly core-pulled and demolded, thereby improving the production and processing efficiency of the core-pulling injection mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural schematic diagram of a preferred embodiment of the automated core-pulling injection mold provided by the utility model;

[0017] Figure 2 for Figure 1 The structural diagram of the front side is shown;

[0018] Figure 3 for Figure 1 The schematic diagram of the structure of the maintenance box door and the observation window is shown.

[0019] Numbers in the figure: 1. containing box; 2. lower mold; 3. upper mold; 4. first electric telescopic rod; 5. horizontal plate; 6. injection tube; 7. first ventilation cavity; 8. second ventilation cavity; 9. exhaust port; 10. dust screen; 11. second electric telescopic rod; 12. cavity; 13. air pump; 14. air inlet pipe; 15. filter screen; 16. diverter plate; 17. air outlet pipe; 18. connecting pipe; 19. flange; 20. maintenance box door; 21. observation window; 22. mold core. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0021] Please refer to Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 A structural schematic diagram of a preferred embodiment of the automated core-pulling injection mold provided by the utility model; Figure 2 for Figure 1 The structural diagram of the front side is shown; Figure 3 for Figure 1 The structure diagram of the inspection box door and the observation window is shown in the figure. The automatic core-pulling injection mold comprises a containing box 1, a lower mold 2 is fixedly connected to the top of the containing box 1, core-pulling mechanisms are arranged on both sides of the lower mold 2, and an upper mold 3 that can be raised and lowered is arranged above the lower mold 2 through a telescopic mechanism.

[0022] A second ventilation cavity 8 is provided inside the lower mold 2, a first ventilation cavity 7 is provided inside the upper mold 3, exhaust ports 9 are provided on the surfaces of the lower mold 2 and the upper mold 3, and the two exhaust ports 9 are connected to the first ventilation cavity 7 and the second ventilation cavity 8 respectively.

[0023] The inner cavity of the containing box 1 is provided with an air pump 13, the air outlet of the air pump 13 is connected to a diverter plate 16, the surface of the diverter plate 16 is connected to two air outlet pipes 17, and the two air outlet pipes 17 are connected to the first ventilation cavity 7 and the second ventilation cavity 8 respectively.

[0024] The telescopic mechanism drives the upper mold 3 down to contact and join with the top of the lower mold 2 to form a complete mold, and the injection molding process can begin.

[0025] After the injection molding process is completed, the air pump 13 works to inject air into the diverter plate 16. After the air flow is diverted and guided by the two air outlet pipes 17, the air flow is injected into the first ventilation cavity 7, thereby cooling the upper mold 3 and the lower mold 2. After the hot air flow is discharged through the exhaust port 9, the lower mold 2 and the upper mold 3 can be better cooled.

[0026] The workpiece in the mold cavity can be cooled by heat exchange, which improves the cooling efficiency of the workpiece and enables the mold to be quickly core-pulled and demolded, thereby improving the production and processing efficiency of the core-pulling injection mold.

[0027] The telescopic mechanism includes a first electric telescopic rod 4, which is fixedly arranged on the top of the containing box 1. The top of the first electric telescopic rod 4 is fixedly connected to a horizontal plate 5, the lower surface of the horizontal plate 5 is fixedly connected to the top of the upper mold 3, and the top of the upper mold 3 is connected to an injection tube 6.

[0028] During the extension and retraction process of the first electric telescopic rod 4 , the transverse plate 5 is driven to move up and down, thereby driving the upper mold 3 to move up and down.

[0029] The core pulling mechanism includes a second electric telescopic rod 11 and a cavity 12. The second electric telescopic rod 11 is transversely arranged on the side wall of the lower mold 2. The cavity 12 is opened inside the lower mold 2. One end of the second electric telescopic rod 11 can be movably extended into the cavity 12 and is fixedly connected with a mold core 22. The inner end of the mold core 22 can be pulled and extended to the mold cavity of the lower mold 2.

[0030] During the extension and retraction process of the second electric telescopic rod 11 , the mold core 22 can be driven to move, so as to facilitate the core pulling and core inserting operations.

[0031] A dustproof net 10 is fixedly connected to the interior of the exhaust port 9 , and the dustproof net 10 prevents air from flowing back and bringing dust into the inner cavity of the first ventilation cavity 7 .

[0032] The surfaces of the lower mold 2 and the upper mold 3 are both connected with connecting pipes 18 , which are respectively connected to the first ventilation cavity 7 and the second ventilation cavity 8 . The other end of the air outlet pipe 17 is connected to the outer end of the connecting pipe 18 through a flange 19 .

[0033] The air outlet pipe 17 and the connecting pipe 18 are disassembled and connected, so as to facilitate the later inspection and maintenance operations on the upper mold 3 and the lower mold 2.

[0034] The air inlet of the air pump 13 is connected to an air inlet pipe 14 , the other end of the air inlet pipe 14 extends to the outside of the containing box 1 , and a filter screen 15 is fixedly connected to the inside of the air inlet pipe 14 .

[0035] A maintenance box door 20 is detachably connected to the surface of the containing box 1 by means of a plurality of bolts, and an observation window 21 is provided on the surface of the maintenance box door 20 .

[0036] The working principle of the automatic core-pulling injection mold provided by the utility model is as follows:

[0037] When the first electric telescopic rod 4 contracts, it drives the cross plate 5 to move downward, and after the upper mold 3 descends to contact and splice with the top of the lower mold 2 to form a complete mold, the raw material can be injected into the mold cavity through the injection tube 6 to start the injection molding process. After the injection molding process is completed, the air pump 13 works to inject air into the diverter plate 16, and after the air flow is diverted and guided by two air outlet pipes 17, the air flow is injected into the first ventilation cavity 7, thereby cooling the upper mold 3 and the lower mold 2. After the hot air flow is discharged through the exhaust port 9, the lower mold 2 and the upper mold 3 can be better cooled, thereby improving the cooling efficiency of the workpiece, so that the mold can be quickly cored and demolded.

[0038] Compared with the related art, the automatic core-pulling injection mold provided by the utility model has the following beneficial effects:

[0039] The utility model provides an automated core-pulling injection mold, which drives an upper mold 3 to descend to contact and splice with the top of a lower mold 2 through a telescopic mechanism to form a complete mold, and then the injection molding process can begin. After the injection molding process is completed, after the air pump 13 works, airflow is injected into the inside of a diverter plate 16, and after the airflow is diverted and guided by two air outlet pipes 17, the airflow is injected into the inside of a first ventilation cavity 7, thereby cooling the upper mold 3 and the lower mold 2. After the airflow with heat is discharged through an exhaust port 9, the lower mold 2 and the upper mold 3 can be better cooled, and then the workpiece in the mold cavity can be cooled by heat exchange, thereby improving the cooling efficiency of the workpiece, enabling the mold to be quickly core-pulled and demolded, thereby improving the production and processing efficiency of the core-pulling injection mold.

[0040] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An automated core-pulling injection mold, comprising a containing box (1), characterized in that: The top of the containing box (1) is fixedly connected to a lower mold (2), both sides of the lower mold (2) are provided with core-pulling mechanisms, and an upper mold (3) capable of being raised and lowered is provided above the lower mold (2) via a telescopic mechanism; A second ventilation cavity (8) is provided inside the lower mold (2), a first ventilation cavity (7) is provided inside the upper mold (3), exhaust ports (9) are provided on the surfaces of the lower mold (2) and the upper mold (3), the two exhaust ports (9) are respectively connected to the first ventilation cavity (7) and the second ventilation cavity (8), the inner cavity of the containing box (1) is provided with an air pump (13), the air outlet of the air pump (13) is connected to a diverter disk (16), the surface of the diverter disk (16) is connected to two air outlet pipes (17), the two air outlet pipes (17) are respectively connected to the first ventilation cavity (7) and the second ventilation cavity (8).

2. The automated core-pulling injection mold according to claim 1, characterized in that: The telescopic mechanism comprises a first electric telescopic rod (4), the first electric telescopic rod (4) is fixedly arranged on the top of the containing box (1), the top of the first electric telescopic rod (4) is fixedly connected to a transverse plate (5), the lower surface of the transverse plate (5) is fixedly connected to the top of the upper mold (3), and the top of the upper mold (3) is connected to an injection molding tube (6).

3. The automated core-pulling injection mold according to claim 1, characterized in that: The core-pulling mechanism comprises a second electric telescopic rod (11) and a cavity (12); the second electric telescopic rod (11) is transversely arranged on the side wall of the lower mold (2); the cavity (12) is opened inside the lower mold (2); one end of the second electric telescopic rod (11) can be movably extended into the interior of the cavity (12) and is fixedly connected to a mold core (22); the inner end of the mold core (22) can be pulled and extended to the mold cavity of the lower mold (2).

4. The automated core-pulling injection mold according to claim 1, characterized in that: A dustproof net (10) is fixedly connected to the interior of the exhaust port (9).

5. The automated core-pulling injection mold according to claim 1, characterized in that: The surfaces of the lower mold (2) and the upper mold (3) are both connected with connecting pipes (18), and the two connecting pipes (18) are respectively connected with the first ventilation cavity (7) and the second ventilation cavity (8), and the other end of the air outlet pipe (17) is connected with the outer end of the connecting pipe (18) through a flange (19) in a detachable manner.

6. The automated core-pulling injection mold according to claim 1, characterized in that: The air inlet of the air pump (13) is connected to an air inlet pipe (14), the other end of the air inlet pipe (14) extends to the outside of the containing box (1), and a filter screen (15) is fixedly connected to the inside of the air inlet pipe (14).

7. The automated core-pulling injection mold according to claim 1, characterized in that: The surface of the containing box (1) is detachably connected to a maintenance box door (20) via a plurality of bolts, and the surface of the maintenance box door (20) is provided with an observation window (21).

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