Core pulling mechanism of injection mold

Abstract

The core pulling mechanism comprises a hydraulic rod, a vibration motor and an electric suction cup, a mounting plate is fixed below the hydraulic rod, upper connecting rods are fixed to the four corners of the lower portion of the mounting plate, lower connecting rods are arranged below the upper connecting rods, a fixing plate is fixed below the lower connecting rods, and the vibration motor is connected with the electric suction cup. Springs are arranged at the four corners between the mounting plate and the fixed plate, a vibration motor is mounted in the middle of the fixed plate, inner cavities are formed in the four corners of the side face of the fixed plate, movable plates are arranged at the four corners of the side face of the fixed plate, extrusion plates are connected to the surfaces of the movable plates, and anti-slip strips are evenly arranged at the bottoms of the lower portions of the extrusion plates. According to the core pulling mechanism of the injection mold, through the use of the adjustable movable plate on the fixed plate, the adjustable extrusion plate at the end of the movable plate and the electric suction cup, the core pulling mechanism can conveniently adapt to mold cores of injection molds of different sizes, and the use effect of the core pulling mechanism is improved.

Description

Technical Field

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

[0002] Injection mold is a common equipment for processing plastic products. After the plastic parts are processed and formed, the movable mold and the fixed mold are separated. The core needs to be pulled out of the injection mold through the core pulling mechanism to achieve the discharge of the core.

[0003] The existing publication number CN113815198B discloses a core pulling mechanism for an injection mold, comprising a base, a cargo box, a cargo mechanism, a driving plate, a driving rod, a clamping cylinder, a clamping mechanism, a movable mechanism, a telescopic cylinder, and a connecting plate. The upper end of the base is fixedly connected to the cargo box, the cargo box is provided with a cargo mechanism inside, the base is slidably connected to the driving plate, the driving plate is fixedly connected to the driving rod, one end of the driving rod is fixedly connected to the clamping cylinder, the clamping mechanism is provided inside the clamping cylinder, the movable mechanism is provided inside the clamping cylinder, the base is fixedly connected to the telescopic cylinder, and one end of the telescopic cylinder is fixedly connected to the connecting plate;

[0004] In the above document, the mold core can be driven to be replaced by a self-locking motor, thereby avoiding manual collection to improve work efficiency; but the above document is not suitable for cores of different sizes, and the core pulling work is more cumbersome and the core pulling effect is poor. Therefore, we propose a core pulling mechanism for an injection mold to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a core pulling mechanism for an injection mold to solve the problems raised by the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a core pulling mechanism of an injection mold, comprising a hydraulic rod, a vibration motor and an electric suction cup, a mounting plate is fixed below the hydraulic rod, and an upper connecting rod is fixed at the four corners below the mounting plate, a lower connecting rod is arranged below the upper connecting rod, and a fixing plate is fixed below the lower connecting rod, springs are arranged at the four corners between the mounting plate and the fixing plate, a vibration motor is installed in the middle of the fixing plate, an inner cavity is opened at the four corners of the side of the fixing plate, a movable plate is arranged at the four corners of the side of the fixing plate, a first positioning bolt is arranged above the fixing plate, a slot is opened at the end of the movable plate, and a second positioning bolt is arranged at the outer end of the movable plate, an extrusion plate is connected to the surface of the movable plate, and anti-slip strips are evenly arranged on the bottom below the extrusion plate.

[0007] Preferably, the upper connecting rod and the lower connecting rod are connected in a sliding telescopic manner, and the springs are arranged on the outer sides of the upper connecting rod and the lower connecting rod in a one-to-one correspondence.

[0008] The above technical solution can facilitate the use of the telescopic spring and the vibration motor between the upper connecting rod and the lower connecting rod, and facilitate the up and down vibration of the fixed plate to drive the core to be vibrated and pulled out.

[0009] Preferably, an electric suction cup is fixedly installed below the fixing plate, and nine electric suction cups are provided.

[0010] By adopting the above technical solution, the electric suction cup under the fixed plate can be adsorbed on the core of the injection mold to facilitate the adsorption of the core.

[0011] Preferably, the movable plate is slidably connected to the fixed plate, and the surface of the fixed plate is fixedly connected to the movable plate via a first positioning bolt.

[0012] By adopting the above technical solution, it is convenient to adjust the position of the movable plate on the four sides of the fixed plate so that the device can adapt to cores of different sizes.

[0013] Preferably, the extrusion plate is arranged in a "T" shape, the extrusion plate and the movable plate are vertically distributed, and the lower part of the extrusion plate is bonded to the anti-slip strip.

[0014] The above technical solution facilitates the use of the anti-slip strip under the extrusion plate, so as to increase the friction force on the periphery of the core and improve the stability of the core clamping.

[0015] Preferably, the extrusion plate and the groove at the end of the movable plate form a snap-fit ​​sliding connection, and the surface of the movable plate is fixedly connected to the extrusion plate via a second positioning bolt.

[0016] By adopting the above technical solution, the position of the extrusion plate on the movable plate can be conveniently adjusted by using the second positioning bolt at the end of the movable plate.

[0017] Compared with the prior art, the beneficial effects of the utility model are: the core pulling mechanism of the injection mold,

[0018] (1) The device can be adapted to cores of injection molds of different sizes by using an adjustable movable plate on the fixed plate and an adjustable extrusion plate and electric suction cup at the end of the movable plate, thereby improving the use effect of the device;

[0019] (2) The vibration motor above the fixed plate can be used in conjunction with the upper connecting rod, the lower connecting rod and the spring to facilitate core pulling by vibration, thereby improving the core pulling effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the connection structure between the movable plate and the extrusion plate of the utility model;

[0022] Figure 3 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the top sectional structure of the utility model.

[0024] In the figure: 1. hydraulic rod; 2. mounting plate; 3. upper connecting rod; 4. lower connecting rod; 5. fixing plate; 6. spring; 7. vibration motor; 8. inner cavity; 9. movable plate; 10. first positioning bolt; 11. second positioning bolt; 12. extrusion plate; 13. anti-slip strip; 14. electric suction cup; 15. slotting. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4 The utility model provides a technical solution: a core pulling mechanism for an injection mold, comprising a hydraulic rod 1, a vibration motor 7 and an electric suction cup 14, characterized in that: a mounting plate 2 is fixed below the hydraulic rod 1, and an upper connecting rod 3 is fixed at the four corners below the mounting plate 2, a lower connecting rod 4 is arranged below the upper connecting rod 3, and a fixing plate 5 is fixed below the lower connecting rod 4, springs 6 are arranged at the four corners between the mounting plate 2 and the fixing plate 5, a vibration motor 7 is installed at the middle of the fixing plate 5, the upper connecting rod 3 and the lower connecting rod 4 are connected in a sliding telescopic connection, the spring 6 is located on the outer side of the upper connecting rod 3 and the lower connecting rod 4 and is arranged one by one, which can facilitate the telescopic connection between the upper connecting rod 3 and the lower connecting rod 4, and cooperate with the use of the spring 6 and the vibration motor 7 to facilitate the upper and lower vibration of the fixing plate 5, so as to drive the core to be vibrated and pulled out, an electric suction cup 14 is fixedly installed below the fixing plate 5, and the electric suction cup 14 is arranged in nine pieces, which can be adsorbed on the core of the injection mold through the electric suction cup 14 below the fixing plate 5 for the adsorption of the core;

[0027] See also Figure 1-4, the four corners of the side of the fixed plate 5 are provided with an inner cavity 8, the four corners of the side of the fixed plate 5 are provided with a movable plate 9, the movable plate 9 is slidably connected to the fixed plate 5, and the surface of the fixed plate 5 is fixedly connected with the movable plate 9 by a first positioning bolt 10, which is convenient for adjusting the position of the movable plate 9 on the four sides of the fixed plate 5 so that the device can adapt to cores of different sizes, the top of the fixed plate 5 is provided with a first positioning bolt 10, the end of the movable plate 9 is provided with a slot 15, and the outer end of the movable plate 9 is provided with a second positioning bolt 11, the surface of the movable plate 9 is connected with an extrusion plate 12, and the bottom of the extrusion plate 12 is evenly arranged An anti-slip strip 13 is provided, and the extrusion plate 12 is arranged in a "T" shape. The extrusion plate 12 and the movable plate 9 are vertically distributed, and the anti-slip strip 13 is bonded to the bottom of the extrusion plate 12, which is convenient for the use of the anti-slip strip 13 under the extrusion plate 12, so as to increase the friction force around the core and improve the stability of the core clamping. The extrusion plate 12 and the groove 15 at the end of the movable plate 9 form a snap-fit ​​sliding connection, and the surface of the movable plate 9 is fixedly connected to the extrusion plate 12 by the second positioning bolt 11. The position of the extrusion plate 12 on the movable plate 9 can be conveniently adjusted by using the second positioning bolt 11 at the end of the movable plate 9.

[0028] Working principle: First, when in use, the hydraulic rod 1 is installed on an external support machine, and the movable plates 9 on the four sides of the fixed plate 5 are adjusted according to the size of the core. After adjustment, the first positioning bolt 10 is rotated to position the movable plate 9 after adjustment, and then the electric suction cup 14 at the bottom of the fixed plate 5 is used to make the electric suction cup 14 contact with the surface of the core, and then the side squeezing plate 12 of the movable plate 9 is used to facilitate the contact of the anti-slip strip 13 at the end of the squeezing plate 12 with the side of the core. The surface of the squeezing plate 12 is fixedly connected with the side of the movable plate 9 by the second positioning bolt 11, which is convenient for adjusting the position of the squeezing plate 12 and the movable plate 9, so that the device can be installed with the core;

[0029] After installation, the vibration motor 7 above the fixed plate 5 is turned on so that the lower connecting rod 4 above the fixed plate 5 can be retracted into the interior of the upper connecting rod 3 under the action of the spring 6, which facilitates the vibration of the fixed plate 5, and then facilitates the fixed plate 5 to drive the core below to vibrate and extract, thereby improving the core pulling effect. This is the operating principle of the core pulling mechanism of the injection mold.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A core-pulling mechanism for an injection mold, comprising a hydraulic rod (1), a vibration motor (7) and an electric suction cup (14), characterized in that: A mounting plate (2) is fixed below the hydraulic rod (1), and an upper connecting rod (3) is fixed at four corners below the mounting plate (2), a lower connecting rod (4) is arranged below the upper connecting rod (3), and a fixing plate (5) is fixed below the lower connecting rod (4), springs (6) are arranged at four corners between the mounting plate (2) and the fixing plate (5), a vibration motor (7) is installed in the middle of the fixing plate (5), an inner cavity (8) is provided at four corners of the side of the fixing plate (5), a movable plate (9) is provided at four corners of the side of the fixing plate (5), a first positioning bolt (10) is arranged above the fixing plate (5), a slot (15) is provided at the end of the movable plate (9), and a second positioning bolt (11) is arranged at the outer end of the movable plate (9), an extrusion plate (12) is connected to the surface of the movable plate (9), and anti-slip strips (13) are evenly arranged at the bottom below the extrusion plate (12).

2. The core-pulling mechanism of an injection mold according to claim 1, characterized in that: The connection mode between the upper connecting rod (3) and the lower connecting rod (4) is a sliding telescopic connection, and the spring (6) is arranged on the outer sides of the upper connecting rod (3) and the lower connecting rod (4) in a one-to-one correspondence.

3. The core-pulling mechanism of an injection mold according to claim 1, characterized in that: An electric suction cup (14) is fixedly installed below the fixing plate (5), and nine electric suction cups (14) are provided.

4. The core-pulling mechanism of an injection mold according to claim 1, characterized in that: The movable plate (9) is slidably connected to the fixed plate (5), and the surface of the fixed plate (5) is fixedly connected to the movable plate (9) via a first positioning bolt (10).

5. The core-pulling mechanism of an injection mold according to claim 1, characterized in that: The extrusion plate (12) is arranged in a "T" shape, the extrusion plate (12) and the movable plate (9) are vertically distributed, and the lower part of the extrusion plate (12) is bonded to the anti-slip strip (13).

6. The core-pulling mechanism of an injection mold according to claim 1, characterized in that: The extrusion plate (12) and the slot (15) at the end of the movable plate (9) form a snap-fit ​​sliding connection, and the surface of the movable plate (9) is fixedly connected to the extrusion plate (12) via a second positioning bolt (11).

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