A syringe molding apparatus

Through the innovative design of the moving mold closing, demolding, and feeding mechanisms, the problems of unstable mold closing, low demolding efficiency, and uneven feeding in syringe molding equipment have been solved, achieving stability and consistency in syringe molding and improving production efficiency and product quality.

CN120461693BActive Publication Date: 2026-03-31JIANGSU RUIYU HOSPITAL PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-06-06
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing syringe molding equipment lacks stability and precision during mold closing, has low demolding efficiency and is prone to damaging products, and its feeding is discontinuous and uneven, resulting in poor production continuity and low product consistency.

Method used

The moving mold closing mechanism uses cylinders and push rods to achieve precise mold closing and opening, the demolding mechanism uses cylinders to push the demolding plate for efficient demolding, and the feeding mechanism uses a motor to drive the auger to achieve continuous and uniform feeding.

Benefits of technology

To ensure the quality of syringe molding, improve demolding efficiency, reduce the risk of product damage, guarantee production continuity and product consistency, and improve production efficiency and product qualification rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a syringe processing and forming equipment and relates to the technical field of forming equipment.The syringe processing and forming equipment comprises a base frame, an outer shell fixed to the upper surface of the base frame, a moving die combining mechanism fixed to the inside of the outer shell, a demolding mechanism arranged in the moving die combining mechanism, and a feeding mechanism fixed to the upper surface of the base frame, wherein one end of the feeding mechanism is fixedly connected with the moving die combining mechanism.The moving die combining mechanism comprises a fixed plate and a connecting plate, and the fixed plate and the connecting plate are fixedly connected with the inner side of the outer shell.The moving die combining mechanism is used for combining and separating the pressing die and the feeding die, and the action is stable and accurate, thereby ensuring the forming quality of the syringe, or the demolding mechanism is used for smoothly demolding the syringe formed on the syringe forming die rod, and the demolding is efficient and the product is not damaged, or the feeding mechanism is used for realizing automatic, continuous and uniform feeding, thereby guaranteeing the production continuity and product consistency.
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Description

Technical Field

[0001] This invention relates to the field of molding equipment technology, specifically to a syringe processing molding equipment. Background Technology

[0002] Syringe processing and molding equipment is widely used in various medical supply manufacturing enterprises, especially suitable for scenarios with large-scale and stable production needs for syringes. In professional medical device manufacturing plants, it can operate continuously and efficiently, meeting production orders for syringes of different specifications and models. Whether it's a standard disposable plastic syringe or a syringe made of special materials and with customized specifications, it ensures mold fitting precision, guaranteeing accurate molding of all syringe components. This allows for a stable supply of quality-standard syringes to hospitals, clinics, vaccination sites, and other medical institutions, facilitating the smooth operation of medical treatment, disease prevention, and vaccination. Simultaneously, it can also meet the customized production needs of research institutions for special syringes used in medical research and drug trials.

[0003] In existing syringe manufacturing technologies, there are still issues with the stability and precision of the mold closing process. This leads to deviations in mold fit during mold closing, resulting in inconsistent syringe molding quality and a high defect rate. On the other hand, the demolding process is inefficient and prone to damaging the product. Most demolding methods either make it difficult to remove the molded syringe from the mold rod smoothly, affecting production progress, or cause scratches, deformation, and other defects on the syringe surface due to improper operation during demolding, reducing the product qualification rate. In addition, the feeding process cannot achieve continuous and uniform feeding. Unstable feeding volume and feeding interruptions occur frequently. This not only leads to poor production continuity, requiring frequent machine stops for adjustments, but also results in inconsistent raw material amounts used for each syringe, seriously affecting product consistency and increasing production costs and defect rates.

[0004] To address the aforementioned problems, the inventors have proposed a syringe processing and forming device to solve these problems. Summary of the Invention

[0005] To address the issues of instability and inaccuracy in the mold-closing process, low efficiency and potential damage to the product during demolding, and the inability to achieve continuous and uniform feeding, this invention aims to provide a syringe processing and molding device.

[0006] To solve the above technical problems, the present invention adopts the following technical solution: a syringe processing and molding device, including a base frame, a shell fixedly provided on the upper surface of the base frame, a movable mold clamping mechanism fixedly provided inside the shell, a demolding mechanism provided inside the movable mold clamping mechanism, a feeding mechanism fixedly provided on the upper surface of the base frame, one end of the feeding mechanism being fixedly connected to the movable mold clamping mechanism, the movable mold clamping mechanism including a fixed plate and a connecting plate, both the fixed plate and the connecting plate being fixedly connected to the inner side of the shell, a plurality of movable rods arranged in a rectangular array being fixedly provided on one side of the fixed plate and the connecting plate, a movable plate being slidably provided on the outer side of the plurality of movable rods, a movable cylinder being fixedly provided on one side of the fixed plate, a push rod being fixedly provided at the output end of the movable cylinder, one end of the push rod being fixedly connected to one side of the movable plate, and two symmetrically distributed rotating frames being provided on one side of the fixed plate, one end of the rotating frames being rotatably connected to one side of the movable plate.

[0007] Preferably, the demolding mechanism includes a pressing mold, one side of which is fixedly connected to a movable plate. A plurality of forming grooves arranged in a rectangular array are provided on one side of the pressing mold. A feeding mold is fixedly provided on one side of the connecting plate. A feeding cavity is provided on one side of the feeding mold. A plurality of syringe forming mold rods arranged in a rectangular array are fixedly provided on one side of the feeding mold. The syringe forming mold rods slide in conjunction with the forming grooves. A feeding hole is provided at one end of each syringe forming mold rod, and one end of the feeding hole is connected to the feeding cavity. Two demolding cylinders are fixedly provided on one side of the connecting plate. A demolding template is fixedly provided at the output ends of the two demolding cylinders. The demolding template is in contact with the outer side of the plurality of syringe forming mold rods.

[0008] Preferably, the feeding mechanism includes a support frame, the lower surface of which is fixedly connected to the base frame. A feeding frame is fixedly provided on one side of the support frame. A heat dissipation groove is provided on the outer side of the feeding frame. A feeding cylinder is fixedly provided on the inner side of the feeding frame. A motor is provided at one end of the feeding cylinder. An auger is fixedly provided at the output end of the motor. The outer side of the auger rotates and fits against the inner side of the feeding cylinder. Two feeding ports are provided on the outer sides of the feeding frame and the feeding cylinder. A hopper is fixedly provided at the upper end of each feeding port. A discharge port is provided at one end of the feeding cylinder. The discharge port is fixedly connected to one side of the connecting plate.

[0009] Preferably, observation windows are provided on both sides of the outer casing.

[0010] Preferably, the upper surface of the base frame is provided with a material receiving port, and a material receiving box is slidably provided inside the material receiving port.

[0011] Preferably, the movable plate has multiple movable holes on one side, and the inner side of the movable holes slides in conjunction with the movable rod.

[0012] Preferably, a feeding port is provided on one side of the connecting plate, and the feeding port is connected to the feeding chamber.

[0013] Preferably, a plurality of limiting rods are fixedly provided on one side of the feeding mold, and a plurality of limiting holes are provided on one side of the demolding mold, the pressing mold and the moving plate, and the limiting holes slide and fit with the limiting rods.

[0014] Preferably, a mounting bracket is fixedly provided on the inner side of the feeding rack, and the upper surface of the mounting bracket is fixedly engaged with the motor.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. This invention uses a movable mold closing mechanism, which uses a movable cylinder and a push rod to drive a movable plate to slide on a movable rod, thereby realizing the closing and opening of the pressing mold and the feeding mold. The action is stable and precise, ensuring the molding quality of the syringe.

[0017] 2. The present invention uses a demolding mechanism, which utilizes a demolding cylinder to push the demolding plate, to smoothly remove the syringe formed on the syringe forming mold rod. The demolding is efficient and will not damage the product.

[0018] 3. The present invention uses a feeding mechanism to drive an auger to rotate inside a feeding cylinder via a motor. The raw materials in the hopper are fed into the feeding cylinder through the loading port and then sent to the feeding cavity of the feeding mold through the discharge port. This achieves automatic, continuous and uniform feeding, ensuring production continuity and product consistency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0022] Figure 3 This is a schematic diagram of the movable mold closing mechanism and some of its structures according to the present invention.

[0023] Figure 4 This is a schematic diagram of the moving mold closing mechanism of the present invention.

[0024] Figure 5 This is a schematic cross-sectional view of the demolding mechanism of the present invention.

[0025] Figure 6This is a schematic diagram of the back of the demolding mechanism structure of the present invention.

[0026] Figure 7 This is a schematic diagram of the feeding mechanism of the present invention.

[0027] Figure 8 This is a schematic cross-sectional view of the feeding mechanism of the present invention.

[0028] In the diagram: 1. Base frame; 2. Moving mold closing mechanism; 3. Demolding mechanism; 4. Feeding mechanism; 5. Outer shell; 6. Observation window; 7. Material receiving port; 8. Material receiving box; 20. Fixing plate; 21. Connecting plate; 22. Moving cylinder; 23. Push rod; 24. Rotating frame; 25. Moving rod; 26. Feeding port; 27. Moving hole; 28. Moving plate; 30. Pressing mold; 31. Forming groove; 32. Limiting rod; 33. Feeding mold; 34. Feeding hole; 35. Feeding cavity; 36. Demolding cylinder; 37. Injector forming mold rod; 38. Demolding plate; 39. Limiting hole; 40. Support frame; 41. Heat dissipation groove; 42. Feeding rack; 43. Mounting frame; 44. Motor; 45. Loading port; 46. Hopper; 47. Feeding cylinder; 48. Discharge port; 49. Screwdriver. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1: As Figure 1-4 As shown, the present invention provides a syringe processing and molding device, including a base frame 1, a housing 5 fixedly provided on the upper surface of the base frame 1, a movable mold closing mechanism 2 fixedly provided inside the housing 5, a demolding mechanism 3 provided inside the movable mold closing mechanism 2, and a feeding mechanism 4 fixedly provided on the upper surface of the base frame 1, one end of the feeding mechanism 4 being fixedly connected to the movable mold closing mechanism 2.

[0031] The movable mold clamping mechanism 2 includes a fixed plate 20 and a connecting plate 21. Both the fixed plate 20 and the connecting plate 21 are fixedly connected to the inner side of the outer shell 5. A plurality of movable rods 25 arranged in a rectangular array are fixedly provided on one side of the fixed plate 20 and the connecting plate 21. A movable plate 28 is slidably provided on the outer side of the plurality of movable rods 25. A movable cylinder 22 is fixedly provided on one side of the fixed plate 20. A push rod 23 is fixedly provided at the output end of the movable cylinder 22. One end of the push rod 23 is fixedly connected to one side of the movable plate 28. Two symmetrically distributed rotating frames 24 are provided on one side of the fixed plate 20. One end of the rotating frame 24 is rotatably connected to one side of the movable plate 28.

[0032] By adopting the above technical solution, the moving mold closing mechanism 2, through the moving cylinder 22 and the push rod 23, drives the moving plate 28 to slide on the moving rod 25, thereby realizing the mold closing and mold opening of the pressing mold 30 and the feeding mold 33. The action is stable and precise, ensuring the molding quality of the syringe.

[0033] The outer casing 5 has observation windows 6 on both sides.

[0034] By adopting the above technical solution, the observation windows 6 on both sides of the outer casing 5 provide operators with a direct way to view the internal operation of the equipment. During the syringe molding process, operators can observe the working status of various components such as the moving mold closing mechanism 2, the demolding mechanism 3, and the feeding mechanism 4 in real time through the observation windows 6 without opening the outer casing 5. For example, the mold closing and opening status of the pressing mold 30 and the feeding mold 33 in the moving mold closing mechanism 2, the demolding action of the demolding template 38 in the demolding mechanism 3, and the material conveying status in the feeding mechanism 4. This helps operators to promptly detect abnormalities that may occur during equipment operation, such as mold matching deviations, poor demolding, and feeding interruptions, so as to take corresponding measures to deal with them quickly, avoid the problem from escalating, reduce the impact of equipment failure on production, and improve production efficiency and product quality stability.

[0035] The upper surface of the base frame 1 is provided with a receiving port 7, and a receiving box 8 is slidably provided on the inner side of the receiving port 7.

[0036] By adopting the above technical solution, the receiving port 7 on the upper surface of the base frame 1 and the receiving box 8 slidably arranged inside greatly simplify the collection process after the syringes are processed and formed. After the demolding mechanism 3 removes the formed syringe from the syringe forming mold rod 37, the syringe can fall directly into the receiving port 7 and then slide into the receiving box 8. This design avoids the tedious operation of manually collecting syringes one by one, reduces labor intensity, and improves collection efficiency. At the same time, the receiving box 8 is slidably arranged inside the receiving port 7, which makes it convenient to quickly pull out the syringes from the receiving port 7 after the receiving box 8 is full for subsequent packaging or processing, and then replace it with an empty receiving box 8 to continue collection, ensuring the continuity of the production process and further improving production efficiency.

[0037] The movable plate 28 has multiple movable holes 27 on one side, and the inner side of the movable holes 27 is slidably engaged with the movable rod 25.

[0038] By adopting the above technical solution, the multiple movable holes 27 opened on one side of the movable plate 28, whose inner sides slide in engagement with the movable rod 25, play a key role in the operation of the movable mold closing mechanism 2. The sliding engagement between the movable holes 27 and the movable rod 25 provides precise guidance for the movement of the movable plate 28, ensuring that the movable plate 28 can slide stably and linearly along the movable rod 25, thereby driving the pressing mold 30 to accurately perform mold closing and mold opening actions with the feeding mold 33. This precise guidance reduces problems such as offset and shaking that may occur during the movement of the movable plate 28, improves the accuracy of mold closing and mold opening, thereby ensuring the quality of syringe molding, reducing the defect rate caused by inaccurate mold matching, and improving the overall product qualification rate.

[0039] A feeding port 26 is provided on one side of the connecting plate 21, and the feeding port 26 is connected to the feeding chamber 35.

[0040] By adopting the above technical solution, the feeding port 26 on one side of the connecting plate 21, which is connected to the feeding cavity 35, plays an important role in the coordinated operation of the feeding mechanism 4 and the moving mold closing mechanism 2. The feeding mechanism 4 conveys the raw material to the feeding cavity 35 through the discharge port 48, and the feeding port 26, as a channel between the feeding cavity 35 and the forming groove 31, ensures that the raw material can smoothly enter the forming groove 31 from the feeding cavity 35, providing sufficient raw material for the molding of the syringe. At the same time, the design of the feeding port 26 ensures the uniformity and stability of the raw material delivery, avoiding problems such as blockage and uneven distribution of the raw material during the delivery process, thereby ensuring the consistency of the raw material supply during the molding process of each syringe, which helps to improve the quality stability and consistency of the syringe products.

[0041] Working Principle: After the syringe molding equipment is started, the moving mold closing mechanism 2 begins to work. The moving cylinder 22 receives a command, and its output end pushes the push rod 23 forward. Since one end of the push rod 23 is fixedly connected to the moving plate 28, under the force of the push rod 23, the moving plate 28 slides along multiple moving rods 25 arranged in a rectangular array. Simultaneously, two symmetrically distributed rotating frames 24 on one side of the fixed plate 20, whose ends are rotatably connected to the moving plate 28, also rotate with the movement of the moving plate 28, providing auxiliary support and guidance to ensure smooth movement of the moving plate 28. As the moving plate 28 moves, the pressing mold 30 fixed on the moving plate 28 gradually approaches the feeding mold 33 on the side of the connecting plate 21, ultimately achieving the mold closing action of the pressing mold 30 and the feeding mold 33. When mold separation is required, the moving cylinder 22 reverses its action, pulling the push rod 23 and the moving plate 28 to move in the opposite direction, causing the pressing mold 30 to separate from the feeding mold 33, completing the mold separation process.

[0042] Example 2: Figure 5-6As shown, the demolding mechanism 3 includes a pressing mold 30, one side of which is fixedly connected to a moving plate 28. A plurality of forming grooves 31 arranged in a rectangular array are provided on one side of the pressing mold 30. A feeding mold 33 is fixedly provided on one side of the connecting plate 21. A feeding cavity 35 is provided on one side of the feeding mold 33. A plurality of syringe forming rods 37 arranged in a rectangular array are fixedly provided on one side of the feeding mold 33. The syringe forming rods 37 slide in cooperation with the forming grooves 31. A feeding hole 34 is provided at one end of each syringe forming rod 37, and one end of the feeding hole 34 is connected to the feeding cavity 35. Two demolding cylinders 36 are fixedly provided on one side of the connecting plate 21. A demolding template 38 is fixedly provided at the output ends of the two demolding cylinders 36. The demolding template 38 is in contact with the outer side of the plurality of syringe forming rods 37.

[0043] By adopting the above technical solution, the demolding mechanism 3 uses the demolding cylinder 36 to push the demolding plate 38 to smoothly remove the syringe formed on the syringe forming mold rod 37. The demolding is efficient and will not damage the product.

[0044] Multiple limiting rods 32 are fixedly provided on one side of the feeding mold 33, and multiple limiting holes 39 are provided on one side of the demolding mold 38, the pressing mold 30 and the moving plate 28. The limiting holes 39 slide and fit with the limiting rods 32.

[0045] By adopting the above technical solution, the multiple limiting rods 32 fixed on one side of the feeding mold 33, and the multiple limiting holes 39 opened on one side of the ejector platen 38, the pressing mold 30, and the moving plate 28, through their sliding fit, play a precise guiding and positioning role in the operation of the ejector mechanism 3 and the moving mold closing mechanism 2. During the ejection process, the ejector platen 38 moves along the limiting rods 32. The sliding fit between the limiting rods 32 and the limiting holes 39 ensures the stability and accuracy of the ejector platen 38's movement, enabling it to accurately remove the syringe formed on the syringe forming mold rod 37, avoiding damage to the syringe due to deviations in the movement of the ejector platen 38. During the mold closing process, the fit between the limiting rods 32 and the limiting holes 39 also ensures the accuracy of the mold closing between the pressing mold 30 and the feeding mold 33, improving the quality of syringe forming, reducing the defect rate, and enhancing the overall operational reliability and product quality of the equipment.

[0046] Working Principle: After the syringe is formed on the syringe forming mold 37, the demolding mechanism 3 starts working. Two demolding cylinders 36 on one side of the connecting plate 21 receive signals, and their output ends jointly push the demolding template 38 along multiple limiting rods 32. Because the demolding template 38 is in contact with the outer sides of the multiple syringe forming mold 37, the syringe formed on the syringe forming mold 37 is smoothly removed from the mold 37 under the push of the demolding template 38. During the demolding process, the limiting rods 32 slide and engage with the demolding template 38, the pressing mold 30, and multiple limiting holes 39 on the moving plate 28, providing precise guidance and ensuring stable movement of the demolding template 38, avoiding damage to the syringe. After demolding is completed, the demolding cylinders 36 reverse their movement, causing the demolding template 38 to reset, awaiting the next demolding operation.

[0047] Example 3: Figure 7-8 As shown, the feeding mechanism 4 includes a support frame 40, the lower surface of which is fixedly connected to the base frame 1. A feeding frame 42 is fixedly provided on one side of the support frame 40. A heat dissipation groove 41 is provided on the outer side of the feeding frame 42. A feeding cylinder 47 is fixedly provided on the inner side of the feeding frame 42. A motor 44 is provided at one end of the feeding cylinder 47. An auger 49 is fixedly provided at the output end of the motor 44. The outer side of the auger 49 rotates and fits against the inner side of the feeding cylinder 47. Two feeding ports 45 are opened on the outer sides of the feeding frame 42 and the feeding cylinder 47. A hopper 46 is fixedly provided at the upper end of each feeding port 45. A discharge port 48 is opened at one end of the feeding cylinder 47. The discharge port 48 is fixedly connected to one side of the connecting plate 21.

[0048] By adopting the above technical solution, the feeding mechanism 4 drives the auger 49 to rotate in the feeding cylinder 47 through the motor 44, and feeds the raw material in the hopper 46 into the feeding cylinder 47 through the loading port 45, and then into the feeding chamber 35 of the feeding mold 33 through the discharge port 48, so as to realize automatic, continuous and uniform feeding, and ensure production continuity and product consistency.

[0049] The inner side of the feeding rack 42 is fixedly provided with a mounting bracket 43, and the upper surface of the mounting bracket 43 is fixedly engaged with the motor 44.

[0050] By adopting the above technical solution, the mounting bracket 43 fixed inside the feeding frame 42 has its upper surface fixedly fitted with the motor 44, providing a reliable guarantee for the stable operation of the motor 44. Through the fixed connection between the mounting bracket 43 and the feeding frame 42, the motor 44 is securely installed inside the feeding frame 42, reducing displacement or loosening of the motor 44 due to vibration, shaking, or other factors during operation. This ensures that the motor 44 can stably and continuously output power, driving the auger 49 to rotate within the feeding cylinder 47, achieving automatic, continuous, and uniform conveying of raw materials. This stable and reliable installation method improves the overall operational stability of the feeding mechanism 4, reduces the probability of equipment failure, and ensures the continuity of the production process and the stability of product quality.

[0051] Working Principle: During the syringe molding process, the feeding mechanism 4 is responsible for continuously and stably conveying the raw material. The operator pours the raw material into the hopper 46 at the top of the two feeding ports 45 shared by the feeding frame 42 and the feeding cylinder 47. The raw material enters the feeding cylinder 47 through the feeding ports 45. The motor 44 at one end of the feeding cylinder 47 starts, and its output drives the auger 49 to rotate inside the feeding cylinder 47. The outer side of the auger 49 rotates and engages with the inner side of the feeding cylinder 47. As the auger 49 rotates, the raw material is continuously pushed forward. The heat dissipation grooves 41 on the outer side of the feeding frame 42 help dissipate heat from the motor 44 and the feeding cylinder 47 during operation, ensuring normal equipment operation. The raw material is pushed by the auger 49 to the discharge port 48 at one end of the feeding cylinder 47. The discharge port 48 is fixedly connected to one side of the connecting plate 21. The raw material enters the feeding cavity 35 of the feeding mold 33 on one side of the connecting plate 21 through the discharge port 48, and then enters the forming groove 31 through the feeding hole 34 at one end of the syringe forming mold rod 37. This achieves automatic, continuous and uniform feeding, ensuring the continuity of production and the consistency of products.

[0052] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. An injector molding apparatus comprising a chassis (1), characterized in that: The upper surface of the chassis (1) is fixedly provided with a shell (5), the inside of the shell (5) is fixedly provided with a moving mold closing mechanism (2), the inside of the moving mold closing mechanism (2) is provided with a demolding mechanism (3), the upper surface of the chassis (1) is fixedly provided with a feeding mechanism (4), one end of the feeding mechanism (4) is fixedly connected with the moving mold closing mechanism (2); The moving mold closing mechanism (2) comprises a fixed plate (20) and a connecting plate (21), the fixed plate (20) and the connecting plate (21) are fixedly connected with the inside of the shell (5), one side of the fixed plate (20) and the connecting plate (21) is fixedly provided with a plurality of moving rods (25) which are arranged in a rectangular array, the outside of the plurality of moving rods (25) is jointly and slidably provided with a moving plate (28), one side of the fixed plate (20) is fixedly provided with a moving air cylinder (22), the output end of the moving air cylinder (22) is fixedly provided with a push rod (23), one end of the push rod (23) is fixedly connected with one side of the moving plate (28), one side of the fixed plate (20) is provided with two rotating frames (24) which are symmetrically arranged, one end of the rotating frame (24) is rotatably connected with one side of the moving plate (28); The demolding mechanism (3) comprises a pressure closing mold (30), one side of the pressure closing mold (30) is fixedly connected with the moving plate (28), one side of the pressure closing mold (30) is provided with a plurality of forming grooves (31) which are arranged in a rectangular array, one side of the connecting plate (21) is fixedly provided with a feeding mold (33), one side of the feeding mold (33) is provided with a feeding cavity (35), one side of the feeding mold (33) is fixedly provided with a plurality of injector forming mold rods (37) which are arranged in a rectangular array, the injector forming mold rod (37) is slidably matched with the forming groove (31), one end of the injector forming mold rod (37) is provided with a feeding hole (34), one end of the feeding hole (34) is connected with the feeding cavity (35), one side of the connecting plate (21) is fixedly provided with two demolding air cylinders (36), the output ends of the two demolding air cylinders (36) are jointly and fixedly provided with a demolding plate (38), the demolding plate (38) is in close contact with the outside of the plurality of injector forming mold rods (37); The feeding mechanism (4) comprises a supporting frame (40), the lower surface of the supporting frame (40) is fixedly connected with the chassis (1), one side of the supporting frame (40) is fixedly provided with a feeding frame (42), the outside of the feeding frame (42) is provided with a heat dissipation groove (41), the inside of the feeding frame (42) is fixedly provided with a feeding cylinder (47), one end of the feeding cylinder (47) is provided with a motor (44), the output end of the motor (44) is fixedly provided with an auger (49), the outside of the auger (49) is rotatably and closely arranged with the inside of the feeding cylinder (47), the outside of the feeding frame (42) and the feeding cylinder (47) is jointly provided with two feeding openings (45), the upper ends of the feeding openings (45) are fixedly provided with hoppers (46), one end of the feeding cylinder (47) is provided with a discharging opening (48), the discharging opening (48) is fixedly connected with one side of the connecting plate (21); The upper surface of the chassis (1) is provided with a receiving port (7), and the inner side of the receiving port (7) is slidably provided with a receiving box (8).

2. An apparatus for molding syringes as defined in claim 1, wherein The outer shell (5) is provided with an observation window (6) on both sides.

3. An apparatus for molding syringes as defined in claim 1, wherein A plurality of moving holes (27) are formed on one side of the moving plate (28), and the inner side of the moving hole (27) is in sliding fit with the moving rod (25).

4. An apparatus for molding syringes as defined in claim 1, wherein A feeding port (26) is formed on one side of the connecting plate (21), and the feeding port (26) is connected with the feeding cavity (35).

5. An apparatus for molding syringes as defined in claim 1, wherein A plurality of limiting rods (32) are fixedly arranged on one side of the feeding mold (33), a plurality of limiting holes (39) are formed on one side of the demolding plate (38), the pressing mold (30) and the moving plate (28), and the limiting hole (39) is in sliding fit with the limiting rod (32).

6. An apparatus for molding syringes as defined in claim 1, wherein The inner side of the feeding frame (42) is fixedly provided with a mounting frame (43), and the upper surface of the mounting frame (43) is fixedly connected with the motor (44).

Citation Information

Patent Citations

  • Mould for producing medical needle cylinder

    CN221793625U

  • Injection molding device and injection molding method

    JP1995032427A