Injection molding and shaping device for syringe needle cylinder

Abstract

The utility model discloses an injection molding and shaping device for a syringe needle cylinder, which belongs to the technical field of syringe production and comprises a driving component, a water cooling component, an inner mold, a forming component, a first cooling pipe, a second cooling pipe, a second water return pipe, an injection molding component, a control component and a plurality of electromagnetic valves. The front face of the supporting frame is connected with an operation panel. According to the utility model, the air cylinder is controlled to extend, the moving block drives the outer mold cavity to move out of the inner mold, the working injection molding box injects raw materials into a gap between the outer mold cavity and the inner mold through the injection molding pipeline, meanwhile, the plurality of electromagnetic valves are opened, and water in the water inlet box enters the first cooling pipe and the second cooling pipe; as the first cooling pipe and the second cooling pipe are both spiral, heat around the inner mold and the outer mold cavity can be quickly taken away by flowing water, so that the injection-molded needle cylinder can be quickly cooled, and the needle cylinder can be quickly molded with high quality.

Description

Technical Field

[0001] This utility model belongs to the field of syringe manufacturing technology, specifically relating to a syringe barrel injection molding and shaping device. Background Technology

[0002] Syringes are a common medical device, and the syringe barrel is one of the most important components. Syringes require high airtightness and smoothness of the syringe barrel. Syringe barrels are mostly produced by injection molding, which is not only convenient for production but also ensures high quality.

[0003] However, current molding devices require cooling and heat removal when molding syringes. Traditional injection molding methods neglect the continuous heat removal process, and syringes with heat are prone to deformation, which greatly reduces production efficiency. Therefore, a syringe molding device is needed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a syringe syringe injection molding and shaping device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a syringe barrel injection molding and shaping device, comprising a drive assembly, a water cooling assembly, an inner mold, a molding assembly, a first cooling pipe, a second cooling pipe, a second return water pipe, an injection assembly, a control assembly, and several solenoid valves. The drive assembly includes a support frame, an operation panel is connected to the front of the support frame, and a cylinder and a telescopic rod are connected inside the support frame.

[0006] The water cooling assembly includes a water tank, a circulation pipe connected to one side of the water tank, an inlet chamber and an outlet chamber inside the water tank, the inlet chamber being connected to the outlet chamber via the circulation pipe, a first inlet pipe, a first branch pipe, a first return pipe and a second branch pipe inside the water tank, an inner mold and several sealing protrusions connected to one side of the water tank, and a first cooling pipe inside the inner mold.

[0007] The molding assembly includes a movable block, one side of which is connected to the movable end of a cylinder. The movable block has an outer mold cavity, a first water inlet pipe, several connecting grooves, several sealing grooves, a second cooling pipe, and a second return water pipe. Several solenoid valves are respectively connected to the first branch pipe, the second branch pipe, the second water inlet pipe, and the second return water pipe.

[0008] As a preferred embodiment, the water inlet chamber is connected to the first water inlet pipe, the first water inlet pipe is connected to the first branch pipe and the first cooling pipe, the first cooling pipe is connected to the first return water pipe, and the first return water pipe is connected to the second branch pipe.

[0009] As a preferred embodiment, the number of sealing protrusions is twice the number of inner molds, and the number of sealing protrusions is consistent with the number of sealing grooves.

[0010] As a preferred embodiment, the second water inlet pipe is connected to the second cooling pipe, and the second cooling pipe is connected to the second return water pipe.

[0011] As a preferred embodiment, the injection molding assembly includes an injection box and an injection pipe, the injection pipe being formed inside the movable block, the injection box being connected to the upper surface of the movable block, and the injection box being connected to the inner mold cavity through the injection pipe.

[0012] As a preferred embodiment, the control component includes a push rod and a control button, which are respectively connected to the moving block and the water tank, and the position of the push rod corresponds to the position of the water tank.

[0013] As a preferred embodiment, the position of the sealing protrusion corresponds to the position of the sealing groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention controls the extension of the cylinder, and the moving block drives the outer mold cavity to move outside the inner mold. The working injection box injects raw material into the gap between the outer mold cavity and the inner mold through the injection pipe. At the same time, several solenoid valves are opened, and water in the water tank enters the first cooling pipe and the second cooling pipe. Since the first cooling pipe and the second cooling pipe are both spiral, the heat around the inner mold and the outer mold cavity can be quickly carried away by the flowing water, so that the injection-molded syringe can be cooled quickly, and the syringe can be molded quickly and with high quality.

[0016] This utility model features a circulation pipe, which consists of a U-shaped pipe, a condenser, and a water pump. The working water pump can input water from the outlet chamber into the condenser through the U-shaped pipe, and then the cooled water can move back into the inlet chamber through the U-shaped pipe. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention from the front view;

[0018] Figure 2 This is a frontal three-dimensional cross-sectional structural diagram of the present invention;

[0019] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0020] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B

[0021] Figure 5 This is a side-view three-dimensional cross-sectional structural diagram of the present invention.

[0022] In the diagram: 1. Drive assembly; 11. Support frame; 12. Control panel; 13. Cylinder; 14. Telescopic rod; 2. Water cooling assembly; 21. Water tank; 22. Inlet chamber; 23. Outlet chamber; 24. Circulation pipe; 25. First inlet pipe; 26. First branch pipe; 27. First return pipe; 28. Second branch pipe; 29. ​​Sealing protrusion; 3. Inner mold; 4. Molding assembly; 41. Moving block; 42. Outer mold cavity; 43. Second inlet pipe; 44. Connecting groove; 45. Sealing groove; 5. First cooling pipe; 6. Second cooling pipe; 7. Second return pipe; 8. Injection assembly; 81. Injection box; 82. Injection pipe; 9. Control assembly; 91. Push rod; 92. Control button; 10. Solenoid valve. Detailed Implementation

[0023] The present invention will be further described below with reference to the embodiments.

[0024] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0025] Please see Figure 1-5 This utility model provides a syringe barrel injection molding and shaping device, including a drive assembly 1, a water cooling assembly 2, an inner mold 3, a molding assembly 4, a first cooling pipe 5, a second cooling pipe 6, a second return water pipe 7, an injection molding assembly 8, a control assembly 9, and several solenoid valves 10. The drive assembly 1 includes a support frame 11, an operation panel 12 is connected to the front of the support frame 11, and a cylinder 13 and a telescopic rod 14 are connected inside the support frame 11.

[0026] The water cooling assembly 2 includes a water tank 21. A circulation pipe 24 is connected to one side of the water tank 21. The water tank 21 has an inlet chamber 22 and an outlet chamber 23. The inlet chamber 22 is connected to the outlet chamber 23 through the circulation pipe 24. The circulation pipe 24 is composed of a U-shaped pipe, a condenser and a water pump. The working water pump can input the water in the outlet chamber 23 into the condenser through the U-shaped pipe. Then the cooled water moves back into the inlet chamber 22 through the U-shaped pipe.

[0027] The water tank 21 is provided with a first inlet pipe 25, a first branch pipe 26, a first return pipe 27 and a second branch pipe 28. One side of the water tank 21 is connected to an inner mold 3 and several sealing protrusions 29. The inner mold 3 is provided with a first cooling pipe 5.

[0028] Molding component 4 includes a movable block 41, one side of which is connected to the movable end of cylinder 13. The movable block 41 has an outer mold cavity 42, a first water inlet pipe 25, several connecting grooves 44, several sealing grooves 45, a second cooling pipe 6, and a second return water pipe 7. Several solenoid valves 10 are respectively connected to the first branch pipe 26, the second branch pipe 28, the second water inlet pipe 43, and the second return water pipe 7. The water inlet cavity 22 is connected to the first water inlet pipe 25, the first water inlet pipe 25 is connected to the first branch pipe 26 and the first cooling pipe 5, the first cooling pipe 5 is connected to the first return water pipe 27, and the first return water pipe 27 is connected to the second branch pipe 28. The number of sealing protrusions 29 is the same as the number of inner mold 3. The number of sealing protrusions 29 is the same as the number of sealing grooves 45. The second water inlet pipe 43 is connected to the second cooling pipe 6, and the second cooling pipe 6 is connected to the second return water pipe 7. The injection molding assembly 8 includes an injection box 81 and an injection pipe 82. The injection pipe 82 is opened in the moving block 41. The injection box 81 is connected to the upper surface of the moving block 41. The injection box 81 is connected to the inner mold cavity 3 through the injection pipe 82. The control assembly 9 includes a push rod 91 and a control button 92. The push rod 91 and the control button 92 are respectively connected to the moving block 41 and the water tank 21. By setting the control button 92, the pressed control button 92 can work through the water pump in the injection box 81 and the circulation pipe 24.

[0029] The position of push rod 91 corresponds to the position of water tank 21, and the position of sealing protrusion 29 corresponds to the position of sealing groove 45. By setting sealing protrusion 29 and sealing groove 45, when sealing protrusion 29 moves into sealing groove 45, sealing protrusion 29 and sealing groove 45 cooperate with each other to connect the first branch pipe 26 with the first water inlet pipe 25 and the second return water pipe 7 with the second branch pipe 28 in a high-sealing manner.

[0030] The working principle and usage process of this utility model are as follows: When the device needs to be used, the control cylinder 13 extends, and the extended cylinder 13 drives the moving block 41 to move. The moving moving block 41 drives the sealing groove 45 to move outside the sealing protrusion 29, and the moving moving block 41 drives the push rod 91 to contact the control button 92 and press the control button 92. At this time, the moving moving block 41 drives the outer mold cavity 42 to move outside the inner mold 3, and the working injection box 81 injects raw material into the gap between the outer mold cavity 42 and the inner mold 3 through the injection pipe 82. At the same time, several solenoid valves 10 are opened, and the water inlet tank 2... Water in the mold 1 can enter the first cooling pipe 5 and the first branch pipe 26 through the first inlet pipe 25. Water entering the first branch pipe 26 can enter the second cooling pipe 6 through the two solenoid valves 10 and the second inlet pipe 43. Then, water entering the first cooling pipe 5 can enter the outlet chamber 23 through the first return pipe 27. At the same time, water entering the second cooling pipe 6 can enter the outlet chamber 23 through the second return pipe 7, the two solenoid valves 10, the second branch pipe 28 and the first return pipe 27. The heat around the inner mold 3 and the outer mold cavity 42 can be quickly carried away by the flowing water, so that the injection-molded syringe can be cooled quickly.

[0031] After the injection molding is completed, the retracting cylinder 13 drives the moving block 41 to move. The moving moving block 41 drives the outer mold cavity 42 to move out of the inner mold 3. When the moving moving block 41 drives the push rod 91 to disengage from the control button 92, the control button 92 can automatically reset. At this time, the four solenoid valves 10 are closed.

[0032] 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. A syringe barrel injection molding and shaping device, comprising a drive assembly (1), a water cooling assembly (2), an inner mold (3), a molding assembly (4), a first cooling pipe (5), a second cooling pipe (6), a second return water pipe (7), an injection molding assembly (8), a control assembly (9), and a plurality of solenoid valves (10), characterized in that: The drive assembly (1) includes a support frame (11), an operation panel (12) is connected to the front of the support frame (11), and a cylinder (13) and a telescopic rod (14) are connected inside the support frame (11). The water cooling assembly (2) includes a water tank (21), a circulation pipe (24) is connected to one side of the water tank (21), an inlet chamber (22) and an outlet chamber (23) are provided in the water tank (21), the inlet chamber (22) is connected to the outlet chamber (23) through the circulation pipe (24), a first inlet pipe (25), a first branch pipe (26), a first return pipe (27) and a second branch pipe (28) are provided in the water tank (21), an inner mold (3) and several sealing protrusions (29) are connected to one side of the water tank (21), and a first cooling pipe (5) is provided in the inner mold (3); The molding component (4) includes a movable block (41), one side of which is connected to the movable end of the cylinder (13). The movable block (41) is provided with an outer mold cavity (42), a first water inlet pipe (25), several connecting grooves (44), several sealing grooves (45), a second cooling pipe (6), and a second return water pipe (7). Several solenoid valves (10) are respectively connected to the first branch pipe (26), the second branch pipe (28), the second water inlet pipe (43), and the second return water pipe (7).

2. The syringe syringe injection molding and shaping device according to claim 1, characterized in that: The water inlet chamber (22) is connected to the first water inlet pipe (25), the first water inlet pipe (25) is connected to the first branch pipe (26) and the first cooling pipe (5), the first cooling pipe (5) is connected to the first return water pipe (27), and the first return water pipe (27) is connected to the second branch pipe (28).

3. The syringe syringe injection molding and shaping device according to claim 1, characterized in that: The number of sealing protrusions (29) is twice the number of inner molds (3), and the number of sealing protrusions (29) is the same as the number of sealing grooves (45).

4. The syringe barrel injection molding and shaping device according to claim 1, characterized in that: The second water inlet pipe (43) is connected to the second cooling pipe (6), and the second cooling pipe (6) is connected to the second return water pipe (7).

5. The syringe barrel injection molding and shaping device according to claim 1, characterized in that: The injection molding assembly (8) includes an injection box (81) and an injection pipe (82). The injection pipe (82) is located inside the movable block (41). The injection box (81) is connected to the upper surface of the movable block (41). The injection box (81) is connected to the cavity of the inner mold (3) through the injection pipe (82).

6. The syringe barrel injection molding and shaping device according to claim 1, characterized in that: The control component (9) includes a push rod (91) and a control button (92), which are connected to the moving block (41) and the water tank (21) respectively. The position of the push rod (91) corresponds to the position of the water tank (21).

7. The syringe barrel injection molding and shaping device according to claim 1, characterized in that: The position of the sealing protrusion (29) corresponds to the position of the sealing groove (45).

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