A mold release assist device for an injection molding machine

Abstract

This utility model discloses an anti-sticking mold release auxiliary device for injection molding machines, belonging to the field of injection molding machine demolding. The anti-sticking mold release auxiliary device includes a mold, with a partition plate installed in the inner cavity of the mold. A mold cavity and a lifting structure installed at the bottom of the inner cavity are provided on the mold and above the partition plate. The lifting structure includes a mounting plate installed at the bottom of the inner cavity and vertical rods located at the four corners of the bottom of the inner cavity. A servo motor is installed on the side wall of the mounting plate. By setting up the lifting structure, and utilizing the mounting plate, rotating shaft, first connecting rod, L-shaped plate, and top plate in conjunction, the plastic product can be ejected, facilitating quick removal of the plastic product. This avoids the problem of strong adhesion between the plastic product and the mold cavity after injection molding in existing injection molding machines, making it inconvenient to remove the plastic product and requiring a lot of time for removal. This significantly shortens the time required to remove the plastic product and improves the processing efficiency of the injection molding machine.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine demolding technology, specifically an anti-sticking demolding auxiliary device for injection molding machines. Background Technology

[0002] Injection molding machines, also known as injection molding machines or injection molding machines, are the main molding equipment used to produce various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molds. An injection mold consists of two parts: a moving mold and a fixed mold. The moving mold is mounted on the moving platen of the injection molding machine, and the fixed mold is mounted on the fixed platen. During injection molding, the moving and fixed molds close to form the gating system and cavity. When the mold opens, the moving and fixed molds separate to remove the plastic product.

[0003] After injection molding, the plastic product adheres strongly to the mold cavity, making it inconvenient to remove. Removing the plastic product takes a lot of time and reduces the processing efficiency of the injection molding machine.

[0004] Therefore, this utility model provides an anti-sticking and demolding auxiliary device for injection molding machines to solve the above problems. Utility Model Content

[0005] This utility model provides an anti-sticking and demolding auxiliary device for injection molding machines, aiming to solve the problems mentioned in the background art, such as the strong adhesion between the plastic product and the mold cavity after injection molding, making it inconvenient to remove the plastic product, requiring a lot of time to remove, and reducing the processing efficiency of injection molding machines.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-sticking mold release auxiliary device for an injection molding machine, comprising a mold, a partition plate installed in the inner cavity of the mold, a mold cavity and a lifting structure installed at the bottom of the inner cavity of the mold on the mold and located above the partition plate;

[0007] The lifting structure includes a mounting plate installed at the bottom of the mold cavity and vertical rods located at the four corners of the bottom of the mold cavity. A servo motor is mounted on the side wall of the mounting plate, and a rotating shaft is mounted on the drive end of the servo motor. A first connecting rod is mounted on the outer wall of the rotating shaft on both the front and rear sides. A second connecting rod is rotatably mounted on the end of the first connecting rod furthest from the rotating shaft. An L-shaped plate is slidably mounted on both sets of vertical rods, and a top plate is mounted on the upper end of the L-shaped plate. By setting up the lifting structure, the plastic product can be ejected, facilitating quick removal of the plastic product. This avoids the problem of strong adhesion between the plastic product and the mold cavity after injection molding in existing injection molding machines, which makes removal inconvenient and time-consuming. The lifting structure significantly shortens the time required to remove the plastic product and improves the processing efficiency of the injection molding machine.

[0008] Preferably, a first anti-stick layer is provided on the mold cavity, and a second anti-stick layer is provided on the end face of the top plate.

[0009] Preferably, a fixed sleeve is installed at the bottom of the inner cavity of the mold and is rotatably connected to the other end of the rotating shaft, and a groove is provided on the upper outer wall of the vertical rod, and the vertical rod is slidably connected by an L-shaped plate.

[0010] Preferably, a first connecting shaft is installed at the end of the first connecting rod away from the pivot, and the end of the second connecting rod near the first connecting rod is rotatably connected to the first connecting shaft through a connecting hole. A second connecting shaft is installed on the side wall of the L-shaped plate, and the end of the second connecting rod away from the first connecting rod is rotatably connected to the second connecting shaft through a connecting hole. Limiting components are provided at the other ends of the first and second connecting shafts.

[0011] Preferably, the front and rear side walls of the L-shaped plate are symmetrically equipped with support rods, the other end of the support rods is connected to the bottom of the top plate, and the side walls of the mold are provided with heat dissipation holes.

[0012] Preferably, the partition plate is provided with a through groove that is adapted to the top plate, the partition plate is slidably connected to the top plate through the through groove, and two sets of mounting ears are symmetrically installed on the left and right side walls of the mold.

[0013] Preferably, the first anti-adhesive layer has an opening corresponding to the top plate, and the first and second anti-adhesive layers are coatings made of fluorosilicone resin.

[0014] Beneficial effects: By setting up a lifting structure and using the mounting plate, rotating shaft, first connecting rod, L-shaped plate and top plate in combination, the plastic product can be ejected, making it convenient and quick to remove the plastic product. This avoids the problem of strong adhesion between the plastic product and the mold cavity after injection molding in existing injection molding machines, which makes it inconvenient to remove the plastic product and requires a lot of time to remove it. It greatly shortens the time required to remove the plastic product and improves the processing efficiency of injection molding machines. Attached Figure Description

[0015] Figure 1 A three-dimensional structural schematic diagram of an anti-sticking and demolding auxiliary device for injection molding machines;

[0016] Figure 2 This is a three-dimensional cross-sectional schematic diagram of an anti-sticking and demolding auxiliary device for injection molding machines;

[0017] Figure 3 This is a schematic diagram showing the disassembled lifting structure of an anti-sticking and demolding auxiliary device for injection molding machines;

[0018] Figure 4 This is a partial cross-sectional schematic diagram of an anti-sticking and demolding auxiliary device for injection molding machines.

[0019] In the diagram: 1. Mold; 11. Heat dissipation hole; 2. Partition plate; 21. Through groove; 3. Mold cavity; 4. Ejector structure; 41. Mounting plate; 42. Vertical rod; 421. Groove; 43. Servo motor; 44. Rotating shaft; 45. First connecting rod; 451. First connecting shaft; 46. Second connecting rod; 47. L-shaped plate; 471. Second connecting shaft; 48. Top plate; 49. Fixing sleeve; 410. Limiting component; 411. Support rod; 5. Mounting ear; 6. First anti-stick layer; 61. Opening; 7. Second anti-stick layer. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] This embodiment provides an anti-sticking and demolding auxiliary device for injection molding machines, such as... Figure 1-4 As shown, the anti-sticking demolding auxiliary device includes a mold 1, a partition 2 installed in the inner cavity of the mold 1, a mold cavity 3 provided on the mold 1 and above the partition 2, and a lifting structure 4 installed at the bottom of the inner cavity of the mold 1.

[0023] The lifting structure 4 includes a mounting plate 41 installed at the bottom of the inner cavity of the mold 1 and vertical rods 42 set at the four corners of the bottom of the inner cavity of the mold 1. A servo motor 43 is installed on the side wall of the mounting plate 41. A rotating shaft 44 is installed at the drive end of the servo motor 43. A first connecting rod 45 is installed on the outer wall of the rotating shaft 44 and on the front and rear sides. A second connecting rod 46 is rotatably installed at the end of the first connecting rod 45 away from the rotating shaft 44. An L-shaped plate 47 is slidably installed on both sets of vertical rods 42. A top plate 48 is installed on the upper end of the L-shaped plate 47.

[0024] In use, after the injection molding machine molds the raw material in the mold cavity 3, the drive device carries the upper mold away from the mold 1. Then, the mounting plate 41 is activated via the control panel. The mounting plate 41, along with the rotating shaft 44, rotates clockwise on the mounting plate 41 and the fixing sleeve 49. The rotating shaft 44 drives the two sets of first connecting rods 45 to rotate, simultaneously driving the end of the first connecting rod 45 away from the rotating shaft 44 to lift upwards. The first connecting rod 45 is transmitted through the first connecting shaft 451, which in turn drives the second connecting rod 46 to lift upwards. At this time, the end of the second connecting rod 46 away from the first connecting rod 45 drives the second connecting shaft 471 to move upwards as the outer wall of the second connecting shaft 471 rotates. The second connecting shaft 471 drives the L-shaped plate 47... The outer wall of the vertical rod 42 slides upward, and the L-shaped plate 47 drives the top plate 48 to move upward. The top plate 48 pushes the injection molded product upward from the mold cavity 3, which facilitates the quick removal of the plastic product by the operator. This avoids the problem that the plastic product is strongly adhered to the mold cavity after injection molding in existing injection molding machines, making it inconvenient to remove the plastic product and requiring a lot of time to remove it. This greatly shortens the time required to remove the plastic product and improves the processing efficiency of the injection molding machine. After the plastic product is removed, the mounting plate 41 is driven to rotate in the opposite direction through the control panel, and the operation steps are reversed. The L-shaped plate 47, along with the top plate 48, returns to the inside of the through groove 21 to prepare for the next injection product.

[0025] In this embodiment, a fixed sleeve 49 is installed at the bottom of the inner cavity of the mold 1 and is rotatably connected to the other end of the rotating shaft 44. A groove 421 is provided on the upper outer wall of the vertical rod 42. The vertical rod 42 is slidably connected through the L-shaped plate 47. A first connecting shaft 451 is installed at the end of the first connecting rod 45 away from the rotating shaft 44. The end of the second connecting rod 46 close to the first connecting rod 45 is rotatably connected to the first connecting shaft 451 through a connecting hole. A second connecting shaft 471 is installed on the side wall of the L-shaped plate 47. The end of the second connecting rod 46 away from the first connecting rod 45 is rotatably connected to the second connecting shaft 471 through a connecting hole. A limit member 410 is provided at the other end of the first connecting shaft 451 and the second connecting shaft 471.

[0026] The limiting member 410 ensures that both ends of the second connecting rod 46 are stably connected to the first connecting shaft 451 and the second connecting shaft 471, thus preventing the second connecting rod 46 from detaching from the first connecting shaft 451 and the second connecting shaft 471 and rotating.

[0027] In this embodiment, support rods 411 are symmetrically installed on the front and rear side walls of the L-shaped plate 47, and the other end of the support rods 411 is connected to the bottom of the top plate 48. The side wall of the mold 1 is provided with heat dissipation holes 11; a through groove 21 is provided on the partition plate 2 and adapted to the top plate 48. The partition plate 2 is slidably connected to the top plate 48 through the through groove 21. Two sets of mounting ears 5 are symmetrically installed on the left and right side walls of the mold 1.

[0028] With the heat dissipation holes 11, the mounting plate 41 will generate a lot of heat after working for a long time. The heat dissipation holes 11 can disperse the heat around the mounting plate 41 to the outside of the mold 1, thereby achieving the heat dissipation function of the mounting plate 41 and improving the service life of the mounting plate 41.

[0029] Example 2

[0030] Unlike Embodiment 1, the mold cavity 3 is provided with a first anti-stick layer 6, and the end face of the top plate 48 is provided with a second anti-stick layer 7.

[0031] When in use, because the first anti-stick layer 6 and the second anti-stick layer 7 are coatings made of fluorosilicone resin, the fluorosilicone resin coating has the characteristic of low surface energy, which greatly reduces the surface energy of the end faces of the mold cavity 3 and the top plate 48, making it difficult for plastic molecules to adhere, thereby reducing the adhesion between the injection molded product and the mold cavity 3 and the top plate 48, making it easier to separate the injection molded product from the mold cavity 3, which is beneficial for removing the injection molded product.

[0032] In this embodiment, an opening 61 is provided on the first anti-adhesive layer 6 and corresponding to the top plate 48. The first anti-adhesive layer 6 and the second anti-adhesive layer 7 are coatings made of fluorosilicone resin.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mold release auxiliary device for an injection molding machine, comprising a mold (1), characterized in that: The inner cavity of the mold (1) is equipped with a partition plate (2), and a mold cavity (3) and a lifting structure (4) installed at the bottom of the inner cavity of the mold (1) are provided on the mold (1) and above the partition plate (2); The lifting structure (4) includes a mounting plate (41) installed at the bottom of the inner cavity of the mold (1) and vertical rods (42) set at the four corners of the bottom of the inner cavity of the mold (1). A servo motor (43) is installed on the side wall of the mounting plate (41). A rotating shaft (44) is installed at the drive end of the servo motor (43). A first connecting rod (45) is installed on the outer wall of the rotating shaft (44) and on the front and rear sides. A second connecting rod (46) is rotatably installed at the end of the first connecting rod (45) away from the rotating shaft (44). The two sets of vertical rods (42) are slidably installed with an L-shaped plate (47). A top plate (48) is installed at the upper end of the L-shaped plate (47).

2. The anti-sticking and demolding auxiliary device for injection molding machines according to claim 1, characterized in that: The mold cavity (3) is provided with a first anti-stick layer (6), and the end face of the top plate (48) is provided with a second anti-stick layer (7).

3. The anti-sticking and demolding auxiliary device for injection molding machines according to claim 1, characterized in that: The bottom of the inner cavity of the mold (1) is fitted with a fixed sleeve (49) that is rotatably connected to the other end of the rotating shaft (44). The upper outer wall of the vertical rod (42) is provided with a groove (421). The vertical rod (42) is slidably connected by an L-shaped plate (47).

4. The anti-sticking and demolding auxiliary device for injection molding machines according to claim 1, characterized in that: The first connecting rod (45) is equipped with a first connecting shaft (451) at the end away from the rotating shaft (44). The second connecting rod (46) is rotatably connected to the first connecting shaft (451) at the end near the first connecting rod (45) through a connecting hole. The side wall of the L-shaped plate (47) is equipped with a second connecting shaft (471). The second connecting rod (46) is rotatably connected to the second connecting shaft (471) at the end away from the first connecting rod (45) through a connecting hole. The other ends of the first connecting shaft (451) and the second connecting shaft (471) are provided with limiters (410).

5. The anti-sticking and demolding auxiliary device for injection molding machines according to claim 1, characterized in that: The front and rear side walls of the L-shaped plate (47) are symmetrically equipped with support rods (411), and the other end of the support rods (411) is connected to the bottom of the top plate (48). The side wall of the mold (1) is provided with heat dissipation holes (11).

6. The anti-sticking and demolding auxiliary device for injection molding machines according to claim 1, characterized in that: The partition (2) is provided with a through groove (21) adapted to the top plate (48). The partition (2) and the top plate (48) are slidably connected through the through groove (21). Two sets of mounting ears (5) are symmetrically installed on the left and right side walls of the mold (1).

7. The anti-sticking and demolding auxiliary device for injection molding machines according to claim 2, characterized in that: An opening (61) is provided on the first anti-stick layer (6) and corresponding to the top plate (48). The first anti-stick layer (6) and the second anti-stick layer (7) are coatings made of fluorosilicone resin.

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