Injector injection molding raw material batching device

Abstract

The utility model relates to a batching device, in particular to an injection molding raw material batching device for an injector. The injector injection molding raw material batching device comprises a supporting rod, a material mixing tank, a material outlet, an electric control valve, a material storage hopper, a motor II, a rotating frame and the like, a plurality of supporting rods distributed in the circumferential direction are fixedly connected to the edge of the lower portion of the mixing tank, a discharging port is fixedly connected to the front side of the lower portion of the mixing tank, an electric control valve is installed in the discharging port, storage hoppers distributed in the left-right direction are fixedly connected to the upper portion of the mixing tank, and a motor II is installed in the center of the bottom of the mixing tank. According to the utility model, the rotating frame, the tooth-missing ring I and the tooth-missing ring II are arranged, so that the tooth-missing ring I and the tooth-missing ring II are meshed with a plurality of gears in the forward direction and the reverse direction in turn, the clockwise and anticlockwise alternate rotation of the stirring rod is realized, and the stirring efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a batching device, in particular to a batching device for injection molding raw materials of syringes. Background Technique

[0002] A syringe is a medical device used to inject liquid drugs or other substances into the human body or animal body, or to extract liquid samples from the body. It usually consists of a transparent barrel, a piston, a needle and other auxiliary components. When producing the barrel of a syringe, an injection molding process is required, and the raw materials used for injection molding need to be pre-prepared using a batching device to ensure the efficient use of the injection molding machine.

[0003] For the existing batching devices for injection molding raw materials of syringes, although they can achieve the stirring and mixing of multiple raw materials of injection molding raw materials, most of the batching devices for injection molding raw materials of syringes stir through a stirring rod. The stirring rod can basically only rotate and stir the raw materials in a single direction, and the raw materials are relatively viscous, which may cause the raw materials to form vortices in the container, resulting in insufficient stirring of the part of the raw materials close to the inner wall of the container, so that it takes a longer time to achieve a satisfactory mixing effect, reducing the stirring efficiency.

[0004] Therefore, there is a particular need for a batching device for injection molding raw materials of syringes to solve the above problems. Content of the Utility Model

[0005] In order to overcome the disadvantage that the stirring rod in most batching devices for injection molding raw materials of syringes can only rotate in a single direction, which requires an extended stirring time and reduces the stirring efficiency, the utility model provides a batching device for injection molding raw materials of syringes.

[0006] The utility model is achieved through the following technical means: A batching device for injection molding raw materials of syringes, including support rods, a mixing tank, a discharge port, an electric control valve, a storage hopper, a motor II, a rotating frame, a toothless ring I, a toothless ring II, gears and a stirring rod. A plurality of support rods distributed circumferentially are fixedly connected to the lower edge position of the mixing tank, and a discharge port is fixedly connected to the lower front side. An electric control valve is installed inside the discharge port. Storage hoppers distributed left and right are fixedly connected to the upper part of the mixing tank. A motor II is installed at the central position of the bottom of the mixing tank. A single rotating frame and a plurality of gears are rotatably connected in the lower cavity of the mixing tank. The output shaft of the motor II passes through the mixing tank and is fixedly connected to the rotating frame. A toothless ring I and a toothless ring II are fixedly connected to the rotating frame. A stirring rod is fixedly connected inside the gear, and the stirring rod penetrates into the mixing tank.

[0007] More preferably, it further includes a sleeve rod, a sliding rod, a striking ball, a spring and a bump. The upper ends of the two stirring rods are fixedly connected with symmetrically distributed sleeve rods. The sleeve rod is internally slidably connected with a sliding rod. One end of the sliding rod facing the inner wall of the mixing tank is fixedly connected with a striking ball. A spring is connected between the other end of the sliding rod facing the stirring rod and the sleeve rod. The upper part inside the mixing tank is fixedly connected with symmetrically distributed bumps. The striking ball and the bumps are at the same height.

[0008] More preferably, it further includes a motor I and a screw conveyor. The screw conveyor is rotatably connected inside the storage hopper. Motors I are installed on one side of the two storage hoppers away from each other. The output shaft of the motor I penetrates into the storage hopper and is fixedly connected with the screw conveyor.

[0009] More preferably, it further includes a support pad. The bottom end of the support rod is connected with a support pad for anti-slip.

[0010] More preferably, it further includes an observation window. A plurality of circularly distributed observation windows are embedded and connected to the outer side wall of the upper part of the mixing tank.

[0011] More preferably, it further includes an integrated controller. The integrated controller is installed on the front side of the lower part of the mixing tank. The integrated controller is electrically connected to the electric control valve, the motor I and the motor II.

[0012] From the above description of the structure of the present invention, the design starting point, concept and advantages of the present invention are as follows:

[0013] By setting the rotating frame, the toothless ring I and the toothless ring II, the toothless ring I and the toothless ring II are alternately meshed with a plurality of gears in the forward and reverse directions, so as to realize the clockwise and counterclockwise alternating rotation of the stirring rod, and improve the stirring efficiency.

[0014] By setting the sleeve rod, the sliding rod, the striking ball, the spring and the bump, vibration can be generated on the inner wall of the mixing tank 2, promoting the mixing between raw materials and improving the fluidity of the raw materials.

[0015] By setting the motor I and the screw conveyor, the raw materials can be evenly conveyed into the mixing tank, and the conveying amount of the raw materials can be controlled by controlling the rotation speed of the output shaft of the motor I to ensure accurate mixing ratio. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 It is a plane cross-sectional view of components such as the mixing tank, the observation window and the storage hopper of the present invention.

[0018] Figure 3This is a three-dimensional structural schematic diagram of components such as the rotating frame, the missing-tooth ring Ⅰ, and the missing-tooth ring Ⅱ of the present utility model.

[0019] Figure 4 This is a partial cross-sectional view of components such as the sleeve rod, the sliding rod, and the hitting ball of the present utility model.

[0020] Figure 5 This is a plan view of components such as the missing-tooth ring Ⅰ, the missing-tooth ring Ⅱ, and the gear of the present utility model.

[0021] The meanings of the reference numerals in the figure: 1, support rod; 101, support pad; 2, mixing tank; 201, observation window; 202, discharge port; 203, electric control valve; 3, storage hopper; 4, motor Ⅰ; 5, screw conveyor; 6, motor Ⅱ; 7, rotating frame; 71, missing-tooth ring Ⅰ; 72, missing-tooth ring Ⅱ; 8, gear; 9, stirring rod; 10, sleeve rod; 11, sliding rod; 12, hitting ball; 13, spring; 14, convex block; 15, integrated controller. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment: An injection molding raw material batching device for a syringe, refer to Figures 1-5As shown in the figure, it includes a support rod 1, a support pad 101, a mixing tank 2, an observation window 201, a discharge port 202, an electric control valve 203, a storage hopper 3, a motor I 4, a screw conveyor rod 5, a motor II 6, a rotating frame 7, a toothless ring I 71, a toothless ring II 72, a gear 8, a stirring rod 9 and an integrated controller 15. At the lower edge position of the mixing tank 2, a plurality of support rods 1 distributed circumferentially are connected by welding. At the lower front side, a discharge port 202 is connected by welding. The bottom end of the support rod 1 is connected with a support pad 101 for anti-slip. On the outer side wall of the upper part of the mixing tank 2, a plurality of circularly distributed observation windows 201 are embedded and connected. Inside the discharge port 202, an electric control valve 203 is connected by bolts. On the upper part of the mixing tank 2, two storage hoppers 3 distributed left and right are connected by welding. Inside the storage hopper 3, a screw conveyor rod 5 is rotatably connected. On one side of each of the two storage hoppers 3 away from each other, a motor I 4 is connected by bolts. The output shaft of the motor I 4 penetrates into the storage hopper 3 and is fixedly connected with the screw conveyor rod 5. At the center position of the bottom of the mixing tank 2, a motor II 6 is connected by bolts. In the lower cavity of the mixing tank 2, a single rotating frame 7 and a plurality of gears 8 are rotatably connected. The output shaft of the motor II 6 passes through the mixing tank 2 and is fixedly connected with the rotating frame 7. On the rotating frame 7, a toothless ring I 71 and a toothless ring II 72 are connected by welding. A plurality of gears 8 are located between the toothless ring I 71 and the toothless ring II 72, so that the toothless ring I 71 can be in positive engagement with a plurality of gears 8 in sequence, and the toothless ring II 72 can be in reverse engagement with a plurality of gears 8 in sequence. And both ends of the toothless ring I 71 and the toothless ring II 72 are aligned with the middle part of the rotating frame 7 to ensure that after the gear 8 is in positive engagement with the toothless ring I 71, it immediately engages with the toothless ring II 72 in reverse. Inside the gear 8, a stirring rod 9 is connected by welding. The stirring rod 9 penetrates into the mixing tank 2. At the lower front side of the mixing tank 2, an integrated controller 15 is connected by bolts. The integrated controller 15 is electrically connected with the electric control valve 203, the motor I 4 and the motor II 6.

[0024] Refer to Figures 2-5 As shown in the figure, it further includes a sleeve rod 10, a sliding rod 11, a striking ball 12, a spring 13 and a convex block 14. At the upper ends of two stirring rods 9, sleeve rods 10 distributed symmetrically are connected by welding. Inside the sleeve rod 10, a sliding rod 11 is slidably connected. One end of the sliding rod 11 facing the inner wall of the mixing tank 2 is connected with a striking ball 12 by welding. Between the other end of the sliding rod 11 facing the stirring rod 9 and the sleeve rod 10, a spring 13 is connected. On the upper inner part of the mixing tank 2, convex blocks 14 distributed symmetrically are connected by welding. The striking ball 12 and the convex block 14 are at the same height to ensure that they are in contact with each other. And the convex block 14 is in the shape of a semi-cylinder, which can provide a smooth transition surface, so that the striking ball 12 can slide smoothly when contacting the convex block 14, reducing the resistance.

[0025] When preparing the injection molding raw materials, first pour the two raw materials into two storage hoppers 3 respectively, and operate the integrated controller 15 to turn on the two motors I 4 and the single motor II 6. The output shaft of the motor I 4 drives the spiral conveyor rod 5 to rotate, and conveys the two raw materials evenly into the mixing tank 2 at the same time. The output shaft of the motor II 6 drives the rotating frame 7 to rotate, and the rotating frame 7 drives the toothless ring I 71 and the toothless ring II 72 to rotate, so that the toothless ring I 71 and the toothless ring II 72 engage with the multiple gears 8 in the forward and reverse directions alternately. When the toothless ring I 71 engages with the gear 8 in the forward direction, the gear 8 drives the stirring rod 9 to rotate clockwise to stir the raw materials. When the toothless ring II 72 engages with the gear 8 in the reverse direction, the gear 8 drives the stirring rod 9 to rotate counterclockwise to stir the raw materials. In this way, the multiple gears 8 continuously drive the stirring rod 9 to rotate clockwise and counterclockwise, so as to fully stir the raw materials and improve the stirring efficiency. After conveying an appropriate amount of raw materials, turn off the motor I 4, and intermittently check the stirring condition of the raw materials through the observation window 201. During the stirring process, the stirring rod 9 drives the sleeve rod 10 to rotate, so that the impact ball 12 intermittently contacts the convex block 14 and is squeezed to move inward. The impact ball 12 drives the sliding rod 11 to move inward to compress the spring 13. When the impact ball 12 intermittently disengages from the convex block 14, the spring 13 returns to its original state, prompting the sliding rod 11 to drive the impact ball 12 to move outward to knock on the inner wall of the mixing tank 2, causing the inner wall of the mixing tank 2 to vibrate, thereby promoting the mixing between the raw materials and improving the fluidity of the raw materials. After the stirring is completed, turn off the motor II 6, control the electric control valve 203 to open the discharge port 202, so that the well-stirred injection molding raw materials in the mixing tank 2 are discharged from the discharge port 202. After the discharging is completed, control the electric control valve 203 to close the discharge port 202.

[0026] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An injection molding raw material batching device for a syringe, characterized in that, It includes a support rod (1), a mixing tank (2), a discharge port (202), an electric control valve (203), a storage hopper (3), a motor II (6), a rotating frame (7), a toothless ring I (71), a toothless ring II (72), a gear (8) and a stirring rod (9). A plurality of support rods (1) distributed circumferentially are fixedly connected to the lower edge position of the mixing tank (2), and a discharge port (202) is fixedly connected to the front side of the lower part. An electric control valve (203) is installed inside the discharge port (202). Storage hoppers (3) distributed left and right are fixedly connected to the upper part of the mixing tank (2). A motor II (6) is installed at the center position of the bottom of the mixing tank (2). A single rotating frame (7) and a plurality of gears (8) are rotatably connected in the cavity at the lower part of the mixing tank (2). The output shaft of the motor II (6) passes through the mixing tank (2) and is fixedly connected to the rotating frame (7). A toothless ring I (71) and a toothless ring II (72) are fixedly connected to the rotating frame (7). A stirring rod (9) is fixedly connected inside the gear (8), and the stirring rod (9) penetrates into the mixing tank (2).

2. The syringe injection molding raw material batching device according to claim 1, characterized in that, It further includes a sleeve rod (10), a sliding rod (11), a striking ball (12), a spring (13) and a convex block (14). Symmetrically distributed sleeve rods (10) are fixedly connected to the upper ends of two stirring rods (9). A sliding rod (11) is slidably connected inside the sleeve rod (10). A striking ball (12) is fixedly connected to one end of the sliding rod (l1) facing the inner wall of the mixing tank (2). A spring (13) is connected between the other end of the sliding rod (11) facing the stirring rod (9) and the sleeve rod (10). Symmetrically distributed convex blocks (14) are fixedly connected to the upper part inside the mixing tank (2), and the striking ball (12) and the convex block (14) are at the same height.

3. The syringe injection molding raw material batching device according to claim 2, characterized in that, It also includes a motor I (4) and a screw conveyor (5). A screw conveyor (5) is rotatably connected inside the storage hopper (3). Motors I (4) are installed on one side of the two storage hoppers (3) away from each other. The output shaft of the motor I (4) penetrates into the storage hopper (3) and is fixedly connected to the screw conveyor (5).

4. An injection molding raw material batching device for a syringe according to claim 3, characterized in that, It further includes a support pad (101). A support pad (101) for anti-slip is connected to the bottom end of the support rod (1).

5. The syringe injection molding raw material batching device according to claim 4, characterized in that, It also includes an observation window (201). A plurality of circularly distributed observation windows (201) are embedded and connected to the outer side wall of the upper part of the mixing tank (2).

6. The syringe injection molding raw material batching device according to claim 5, characterized in that, It further includes an integrated controller (15). An integrated controller (15) is installed on the front side of the lower part of the mixing tank (2). The integrated controller (15) is electrically connected to the electric control valve (203), the motor I (4) and the motor II (6).

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