High-stability two-color injection molding machine

Abstract

This utility model discloses a high-stability two-color injection molding machine, belonging to the field of plastic processing technology. It includes an injection molding machine body, a mold frame fixedly connected to the upper left side of the machine body, a drive module fixedly connected to the upper right side of the machine body, a connecting plate fixedly connected to one side of the mold frame, an injection cylinder one fixedly connected to one side of the injection molding machine body, and an injection cylinder two fixedly connected to the other side of the machine body. This utility model, through the setting of an adjustment structure, a threaded rod two, a moving plate, a push rod one, and a push rod two, and through the cooperation between spur gears, half gears, and a rotating plate, allows the moving plate to reciprocate on the surface of the threaded rod two, and can apply the same pressure to the pigment in injection cylinder one and injection cylinder two, avoiding uneven pressure causing inconsistent melt flow rates within the mold frame, and preventing problems such as dimensional deviations or uneven internal stress distribution in the products, thus ensuring the flexibility of the two-color injection molding machine.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing technology, specifically a high-stability two-color injection molding machine. Background Technology

[0002] A key technical challenge in operating a high-stability two-color injection molding machine is precisely controlling the pressure balance during the two-color injection process. Two-color injection molding, as an advanced plastics processing method, aims to create two-color or multi-material plastic products by simultaneously or sequentially injecting two different colors or materials of molten plastic into two independent injection units. Current two-color injection molding machines primarily use two independent injection barrels to store pigments before delivering them to the mold. However, achieving pressure matching between the two injection units during two-color injection molding is difficult. Uneven pressure can easily cause inconsistent melt flow rates within the mold, leading to dimensional deviations or uneven internal stress distribution in the product, thus reducing the flexibility of the two-color injection molding machine. Utility Model Content

[0003] The purpose of this invention is to provide a highly stable two-color injection molding machine to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-stability two-color injection molding machine, comprising an injection molding machine body, a mold frame fixedly connected to the left side of the upper part of the injection molding machine body, a drive module fixedly connected to the right side of the upper part of the injection molding machine body, a connecting plate fixedly connected to one side of the mold frame, an injection cylinder one fixedly connected to one side of the injection molding machine body, an injection cylinder two fixedly connected to the other side of the injection molding machine body, a threaded rod two rotatably connected to the upper part of the connecting plate, a movable plate threadedly connected to the outer surface of the threaded rod two, a push rod one and a push rod two fixedly connected inside the movable plate, an adjustment structure provided above the connecting plate, the adjustment structure being connected to the threaded rod two, a positioning structure provided inside the adjustment structure, the adjustment structure including a positioning column, a spur gear, a rotating plate and a motor one, an auxiliary plate rotatably connected to the upper part of the rotating plate, a half gear rotatably connected to the top of the positioning column, and a sliding groove opened inside the half gear.

[0005] As a further preferred embodiment of this technical solution, the mold frame is connected to the drive module via a connecting plate, the bottom end of injection cylinder one is connected to the connecting plate, the bottom end of injection cylinder two is connected to the connecting plate, push rod one is slidably connected inside injection cylinder two, and push rod two is slidably connected inside injection cylinder one.

[0006] As a further preferred embodiment of this technical solution, the first injection molding cylinder is provided with a stirring rack, the second injection molding cylinder is provided with a stirring rack, a turntable is rotatably connected to the outside of the second injection molding cylinder, a motor is fixedly connected to the bottom of the turntable, an anti-slip belt is driven to the outside of the turntable, and an anti-slip belt is driven to the outside of the stirring rack.

[0007] As a further preferred embodiment of this technical solution, the first stirring rack is connected to the second stirring rack via the first anti-slip belt, the second stirring rack is connected to the turntable via the second anti-slip belt, the second push rod is slidably connected inside the first stirring rack, and the first push rod is slidably connected inside the second stirring rack.

[0008] As a further preferred embodiment of this technical solution, the spur gear is fixedly connected to the outer surface of the threaded rod II, the positioning pin is fixedly connected to the top of the connecting plate, the rotating plate is rotatably connected inside the connecting plate, the motor I is fixedly connected to the bottom of the connecting plate, the output shaft of the motor I is connected to the rotating plate, and the half gear meshes with the spur gear.

[0009] As a further preferred embodiment of this technical solution, the positioning structure includes a sliding plate and a threaded rod. The sliding plate is slidably connected in a groove, and a column is fixedly connected inside the sliding plate. The auxiliary plate is rotatably connected outside the column, and the threaded rod is rotatably connected above the adjustment structure.

[0010] As a further preferred embodiment of this technical solution, one end of the threaded rod is connected to the motor, the column is threadedly connected to the outside of the threaded rod, and the column is slidably connected inside the half gear.

[0011] This utility model provides a highly stable two-color injection molding machine, which has the following beneficial effects:

[0012] (1) This utility model sets up an adjustment structure, a threaded rod II, a moving plate, a push rod I and a push rod II. The motor I drives the rotating plate to rotate, and the rotating plate drives the half gear to swing around the positioning column through the auxiliary plate. Since the half gear meshes with the spur gear, the threaded rod II will reciprocate with the swing of the half gear. The moving plate will move back and forth on the surface of the threaded rod II. After the push rod I and push rod II move evenly, they will transport the pigment in the injection cylinder I and injection cylinder II to the mold frame. The two-color injection molding machine, through the cooperation between the spur gear, the half gear and the rotating plate, enables the moving plate to move back and forth on the surface of the threaded rod II and can apply the same pressure to the pigment in the injection cylinder I and injection cylinder II. This avoids the phenomenon of inconsistent melt flow rate in the mold frame caused by uneven pressure, and avoids the problem of dimensional deviation or uneven internal stress distribution in the product, thereby ensuring the flexibility of the two-color injection molding machine.

[0013] (2) By setting a positioning structure, the second motor drives the first threaded rod to rotate, the column will move on the surface of the first threaded rod, and the sliding plate will slide in the groove. When the column moves to the appropriate position, the auxiliary plate will also rotate above the rotating plate, thereby adjusting the amplitude of the half gear swing and controlling the path of the moving plate reciprocating, which is convenient for controlling the amount of pigment injection. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the injection molding cylinder of this utility model;

[0016] Figure 3 This is a three-dimensional cross-sectional schematic diagram of the adjustment structure of this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the positioning structure of this utility model.

[0018] In the diagram: 1. Injection molding machine body; 2. Drive module; 3. Connecting plate; 4. Mold frame; 5. Injection cylinder one; 6. Injection cylinder two; 7. Adjustment structure; 701. Positioning column; 702. Spur gear; 703. Rotating plate; 704. Motor one; 705. Auxiliary plate; 706. Half gear; 707. Slide groove; 8. Positioning structure; 801. Sliding plate; 802. Threaded rod one; 803. Motor two; 804. Column; 9. Threaded rod two; 10. Moving plate; 11. Push rod one; 12. Push rod two; 13. Mixing rack one; 14. Mixing rack two; 15. Turntable; 16. Anti-slip belt one; 17. Anti-slip belt two; 18. Motor three. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] This utility model provides a technical solution: such as Figure 1 and Figure 4As shown, in this embodiment, the high-stability two-color injection molding machine includes an injection molding machine body 1. A mold frame 4 is fixedly connected to the left side of the upper part of the injection molding machine body 1, and a drive module 2 is fixedly connected to the right side of the upper part of the injection molding machine body 1. A connecting plate 3 is fixedly connected to one side of the mold frame 4, an injection cylinder 5 is fixedly connected to one side of the injection molding machine body 1, and an injection cylinder 6 is fixedly connected to the other side of the injection molding machine body 1. A threaded rod 9 is rotatably connected above the connecting plate 3, and a movable plate is threadedly connected to the outer surface of the threaded rod 9. 10. Push rod 11 and push rod 2 12 are fixedly connected inside the movable plate 10. An adjustment structure 7 is provided above the connecting plate 3. The adjustment structure 7 is connected to the threaded rod 2 9. A positioning structure 8 is provided inside the adjustment structure 7. The adjustment structure 7 includes a positioning column 701, a spur gear 702, a rotating plate 703 and a motor 1 704. An auxiliary plate 705 is rotatably connected above the rotating plate 703. A half gear 706 is rotatably connected to the top of the positioning column 701. A sliding groove 707 is opened inside the half gear 706.

[0021] like Figure 1 and Figure 2 As shown, the mold frame 4 is connected to the drive module 2 via the connecting plate 3. The bottom end of injection cylinder 1 5 is connected to the connecting plate 3, and the bottom end of injection cylinder 2 6 is connected to the connecting plate 3. Push rod 11 is slidably connected inside injection cylinder 2 6, and push rod 2 12 is slidably connected inside injection cylinder 1 5. A stirring rack 13 is provided inside injection cylinder 1 5, and a stirring rack 2 14 is provided inside injection cylinder 2 6. A turntable 15 is rotatably connected to the outside of injection cylinder 2 6. A motor 3 18 is fixedly connected to the bottom end of the turntable 15. An anti-slip belt 2 17 is connected to the outside of the turntable 15. An anti-slip belt 16 is connected to the outside of the stirring rack 13. The stirring rack 13 is connected to the stirring rack 2 14 via the anti-slip belt 16, and the stirring rack 2 14 is connected to the turntable 15 via the anti-slip belt 2 17. Push rod 2 12 is slidably connected inside stirring rack 13, and push rod 11 is slidably connected inside stirring rack 2 14.

[0022] By setting anti-slip belt 16 and anti-slip belt 17, the turntable 15 is driven to rotate by motor 3 18. The turntable 15 is connected to the mixing rack 2 14 through anti-slip belt 2 17, and the mixing rack 2 14 is connected to the mixing rack 13 through anti-slip belt 16. The mixing rack 13 and the mixing rack 2 14 will rotate synchronously, so that the mixing rack 13 and the mixing rack 2 14 can simultaneously stir the pigment in the injection cylinder 1 5 and the injection cylinder 2 6, avoiding the phenomenon of pigment clumping due to being in a static state for a long time.

[0023] like Figure 3 and Figure 4As shown, spur gear 702 is fixedly connected to the outer surface of threaded rod 9, positioning pin 701 is fixedly connected to the top of connecting plate 3, rotating plate 703 is rotatably connected inside connecting plate 3, motor 704 is fixedly connected to the bottom of connecting plate 3, the output shaft of motor 704 is connected to rotating plate 703, and half gear 706 meshes with spur gear 702.

[0024] By setting a positioning post 701, the rotating plate 703 is driven to rotate by the motor 704. The rotating plate 703 drives the half gear 706 to swing around the positioning post 701 through the auxiliary plate 705. This allows the positioning post 701 to guide the rotation of the half gear 706 and prevent the half gear 706 from getting stuck when it swings.

[0025] The positioning structure 8 includes a sliding plate 801 and a threaded rod 802. The sliding plate 801 is slidably connected in the slide groove 707. A column 804 is fixedly connected in the sliding plate 801. An auxiliary plate 705 is rotatably connected to the outside of the column 804. The threaded rod 802 is rotatably connected above the adjusting structure 7. One end of the threaded rod 802 is connected to a motor 803. The column 804 is threadedly connected to the outside of the threaded rod 802. The column 804 is slidably connected in the half gear 706.

[0026] By setting a threaded rod 802, the motor 803 drives the threaded rod 802 to rotate, and the column 804 moves on the surface of the threaded rod 802, so that the auxiliary plate 705 can be adjusted with the movement of the column 804, avoiding the column 804 from bumping or hitting itself during movement.

[0027] This utility model provides a highly stable two-color injection molding machine, the specific working principle of which is as follows:

[0028] When the two-color injection molding machine is in use, two pigments can be placed into injection cylinder 5 and injection cylinder 6. Then, the turntable 15 is rotated by motor 3 18. The turntable 15 is connected to the mixing rack 2 14 through anti-slip belt 2 17. The mixing rack 2 14 is connected to the mixing rack 13 through anti-slip belt 1 16. The mixing rack 13 and the mixing rack 2 14 will rotate synchronously, which can fully mix the pigments in injection cylinder 5 and injection cylinder 6.

[0029] When it is necessary to transport the internal pigment into the mold frame 4, the motor 803 drives the threaded rod 802 to rotate, the column 804 moves on the surface of the threaded rod 802, and the sliding plate 801 slides in the slide groove 707. When the column 804 moves to the appropriate position, the auxiliary plate 705 also rotates above the rotating plate 703.

[0030] When the position of the auxiliary plate 705 is adjusted, the rotating plate 703 is driven to rotate by the motor 704. The rotating plate 703 drives the half gear 706 to swing around the positioning column 701 through the auxiliary plate 705. Since the half gear 706 meshes with the spur gear 702, the threaded rod 9 will reciprocate with the swing of the half gear 706. The moving plate 10 will move back and forth on the surface of the threaded rod 9. Then, after the push rod 11 and push rod 212 move evenly, they will transport the pigment in the injection cylinder 5 and injection cylinder 6 to the mold frame 4.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. High-stability two-color injection molding machine comprising an injection molding machine body (1), characterized in that: A mold frame (4) is fixedly connected to the left side above the injection molding machine body (1), and a drive module (2) is fixedly connected to the right side above the injection molding machine body (1). A connecting plate (3) is fixedly connected to one side of the mold frame (4), and an injection cylinder (5) is fixedly connected to one side of the injection molding machine body (1). An injection cylinder (6) is fixedly connected to the other side of the injection molding machine body (1). A threaded rod (9) is rotatably connected above the connecting plate (3). A moving plate (10) is threadedly connected to the outer surface of the threaded rod (9). A push rod is fixedly connected inside the moving plate (10). (11) and push rod two (12), the upper part of the connecting plate (3) is provided with an adjustment structure (7), the adjustment structure (7) is connected to the threaded rod two (9), the adjustment structure (7) is provided with a positioning structure (8), the adjustment structure (7) includes a positioning column (701), a spur gear (702), a rotating plate (703) and a motor one (704), the upper part of the rotating plate (703) is rotatably connected with an auxiliary plate (705), the top end of the positioning column (701) is rotatably connected with a half gear (706), and a sliding groove (707) is opened in the half gear (706).

2. The high-stability two-color injection molding machine according to claim 1, characterized by: The mold frame (4) is connected to the drive module (2) through the connecting plate (3). The bottom end of the injection cylinder one (5) is connected to the connecting plate (3). The bottom end of the injection cylinder two (6) is connected to the connecting plate (3). The push rod one (11) is slidably connected inside the injection cylinder two (6). The push rod two (12) is slidably connected inside the injection cylinder one (5).

3. The high-stability two-color injection molding machine according to claim 1, characterized by: The injection molding cylinder one (5) is provided with a stirring rack one (13), the injection molding cylinder two (6) is provided with a stirring rack two (14), the injection molding cylinder two (6) is rotatably connected to a turntable (15), the bottom end of the turntable (15) is fixedly connected to a motor three (18), the turntable (15) is driven by a second anti-slip belt two (17), and the stirring rack one (13) is driven by a first anti-slip belt one (16).

4. The high-stability two-color injection molding machine according to claim 3, characterized by: The first stirring rack (13) is connected to the second stirring rack (14) via the first anti-slip belt (16), the second stirring rack (14) is connected to the turntable (15) via the second anti-slip belt (17), the second push rod (12) is slidably connected inside the first stirring rack (13), and the first push rod (11) is slidably connected inside the second stirring rack (14).

5. The high-stability two-color injection molding machine according to claim 1, characterized in that: The spur gear (702) is fixedly connected to the outer surface of the threaded rod (9), the positioning pin (701) is fixedly connected above the connecting plate (3), the rotating plate (703) is rotatably connected inside the connecting plate (3), the motor (704) is fixedly connected below the connecting plate (3), the output shaft of the motor (704) is connected to the rotating plate (703), and the half gear (706) meshes with the spur gear (702).

6. The high-stability two-color injection molding machine according to claim 1, characterized in that: The positioning structure (8) includes a sliding plate (801) and a threaded rod (802). The sliding plate (801) is slidably connected in the groove (707). A column (804) is fixedly connected in the sliding plate (801). An auxiliary plate (705) is rotatably connected to the outside of the column (804). The threaded rod (802) is rotatably connected above the adjusting structure (7).

7. The high-stability two-color injection molding machine according to claim 6, characterized in that: One end of the threaded rod (802) is connected to the motor (803), the column (804) is threaded to the outside of the threaded rod (802), and the column (804) is slidably connected to the half gear (706).

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