Integrated injection and blowing medical dropper bottle forming device

Abstract

The utility model discloses injection blow integrated medical drop bottle forming device of drop bottle forming processing technical field, including the fixed frame, the fixed frame one side and be close to four corner places respectively through fixed column mounting have the support, the fixed column outside package installation have movable frame, the fixed frame one side fixed mounting have mounting frame, the mounting frame inboard embed with the fixed mould, movable frame inboard embed with the movable mould, movable frame and support between installation have electric push rod, and electric push rod can drive movable frame and take place in the support and fixed frame sliding, and the fixed mould and movable mould closely fit and form the die cavity of work piece, and the heat dissipation part is wrapped in the die cavity outside and can fully increase the area of work piece cooling contact, and utilizes the locating piece to be able to carry out multiple limit and positioning to movable frame and mounting frame, improves injection blow operation and carries out work piece processing the finished product quality.

Description

Technical Field

[0001] This utility model relates to the field of dropper bottle forming and processing, specifically to a medical dropper bottle forming device that integrates injection and blow molding. Background Technology

[0002] In the manufacturing process of medical drop bottles, injection blow molding technology has become the industry mainstream due to its high efficiency and precision. This process involves injection molding plastic raw materials into bottle preforms, then blow molding them to fit the mold cavity, and finally cooling and shaping them into finished drop bottles. However, current injection blow molding equipment has revealed core defects such as low cooling efficiency, unstable positioning and splicing, and poor sealing effect when facing the high-standard production requirements of medical drop bottles, which seriously restricts product quality and production efficiency. Current injection blow molding equipment mostly relies on internal cooling channels in the mold to carry away heat from the mold and indirectly cool the preform. This indirect cooling path is long and has high thermal resistance. From the preform to the mold, and then from the mold to the cooling channels, heat needs to be transferred through multiple layers of media, resulting in a slow cooling rate. Insufficient cooling rate can easily lead to uneven shrinkage of the dropper bottle during the molding process, resulting in large deviations in bottle wall thickness and affecting the mechanical strength and appearance flatness of the dropper bottle.

[0003] Existing molding devices rely heavily on simple mechanical slots or pins for positioning the preform and mold during the preform transfer and blow molding stages. Given the stringent dimensional tolerances required for medical dropper bottles, this often leads to issues like eccentricity and misalignment during the assembly of the bottle body and neck. This unstable positioning results in poor fit when assembling the dropper bottle with accessories such as the cap and dropper tube, causing inconsistent dropper insertion depths and affecting the bottle's sealing and ease of use. Therefore, a blow molding device integrating injection and blow molding is needed to address these problems. Utility Model Content

[0004] The purpose of this invention is to provide an integrated injection and blow molding device for medical dropper bottles to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a medical dropper forming device integrating injection and blow molding, comprising a fixed frame, brackets mounted on one side of the fixed frame and near the four corners via fixed columns, a movable frame fitted on the outside of the fixed columns, an mounting frame fixedly mounted on one side of the fixed frame, a fixed mold embedded in the inner side of the mounting frame, a movable mold embedded in the inner side of the movable frame, an electric push rod installed between the movable frame and the brackets, mold cavities for workpiece forming processing opened in the inner sides of the fixed mold and the movable mold, a heat dissipation component for cooling the workpiece added to the mold cavity shaft, and a positioning component installed between the movable frame and the mounting frame.

[0006] Preferably, the heat dissipation component includes a water inlet connector installed on the top of the movable frame, a water outlet connector installed on the top of the movable frame and opposite to the water inlet connector, a water inlet cavity connected to the water inlet connector installed on one side of the mold cavity, a water outlet cavity connected to the water outlet connector on one side of the mold cavity and near the bottom, and a cooling cavity opened on the outer side of the mold cavity.

[0007] Preferably, the heat dissipation component further includes a sealing plate fixedly installed on one side of the moving mold, a sealing groove is provided on one side of the fixed mold, three first sealing rings are added to the outer side of the sealing plate in a uniform arrangement, and two second sealing rings are fixedly installed on the inner side wall of the sealing groove, with the first sealing rings and the second sealing rings being staggered.

[0008] Preferably, the positioning component includes positioning rods fixedly installed on one side of the bracket and near the four corners, with springs fitted on the outer side of the positioning rods. Positioning blocks are installed on both sides of the mounting frame and both sides of the movable frame by bolts. Positioning plates are installed on both sides of the mounting frame by bolts. The positioning plates pass through the positioning blocks and are slidably connected to them. The positioning rods pass through the movable frame and are slidably connected to it.

[0009] Preferably, the positioning component further includes positioning strips that are fixedly installed on the other two sides of the mounting bracket by bolts. A sliding hole is provided on one side of the positioning strip, and an internal hexagon bolt rod is screwed to the top of the movable bracket. The internal hexagon bolt rod is slidably connected to the sliding hole.

[0010] Preferably, four circumferentially arranged limiting rods are fixedly installed on one side of the fixed mold, and four circumferentially arranged limiting grooves are opened on one side of the moving mold.

[0011] Preferably, the inner wall of the cooling chamber is provided with a cooling groove, which is spiral in shape.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The electric push rod can drive the movable frame to slide within the bracket and the fixed frame. The movable frame drives the moving mold to slide outside the fixed column. The fixed mold and the moving mold fit tightly together to form the mold cavity of the workpiece. The heat dissipation component wrapped around the outside of the mold cavity can fully increase the cooling contact area of ​​the workpiece. The positioning component can perform multiple limits and positioning on the movable frame and the mounting frame to prevent the mold cavity from shifting and improve the finished product quality of the workpiece processed by injection blowing.

[0013] 2. When the moving mold and the fixed mold are spliced ​​together, the two mold cavities are joined together and the sealing plate is inserted into the sealing groove. Then, two second sealing rings are embedded in the gap between the three first sealing rings to increase the sealing effect and prevent coolant from overflowing. The water inlet connector introduces coolant into the cooling cavity through the water inlet cavity. The coolant in the cooling cavity can absorb heat and cool the mold. Then, the cooling water is discharged through the water outlet connector through the water outlet cavity for recycling, which improves the accuracy and practicality of workpiece processing in injection blowing operations. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a left-side sectional perspective view of the overall structure of this utility model; Figure 3 The overall structure of this utility model Figure 2 Enlarged view of point A in the middle; Figure 4 The overall structure of this utility model Figure 2 Enlarged view of section B in the middle.

[0015] In the diagram: 1. Fixed frame; 2. Fixed column; 3. Bracket; 4. Movable frame; 5. Mounting frame; 6. Fixed mold; 7. Moving mold; 8. Electric push rod; 9. Mold cavity; 10. Water inlet connector; 11. Water outlet connector; 12. Water inlet cavity; 13. Water outlet cavity; 14. Cooling cavity; 15. Sealing plate; 16. Sealing groove; 17. First sealing ring; 18. Second sealing ring; 19. Positioning rod; 20. Spring; 21. Positioning block; 22. Positioning strip; 23. Sliding hole; 24. Limiting rod; 25. Limiting groove; 141. Cooling groove; 501. Positioning plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1 Please refer to Figure 1-4As shown, this utility model provides a medical dropper bottle forming device integrating injection and blow molding, including a fixed frame 1. A bracket 3 is installed on one side of the fixed frame 1 and near the four corners through a fixed column 2. A movable frame 4 is fitted on the outside of the fixed column 2. An mounting frame 5 is fixedly installed on one side of the fixed frame 1. A fixed mold 6 is embedded in the inner side of the mounting frame 5. A movable mold 7 is embedded in the inner side of the movable frame 4. An electric push rod 8 is installed between the movable frame 4 and the bracket 3. A mold cavity 9 for workpiece forming is opened in the inner side of the fixed mold 6 and the inner side of the movable mold 7. A heat dissipation component for cooling the workpiece is added to the shaft of the mold cavity 9. A positioning component is installed between the movable frame 4 and the mounting frame 5.

[0018] In addition, the electric push rod 8 can drive the movable frame 4 to slide within the bracket 3 and the fixed frame 1. The movable frame 4 drives the moving mold 7 to slide outside the fixed column 2. The fixed mold 6 and the moving mold 7 are closely fitted to form the mold cavity 9 of the workpiece. The heat dissipation component wrapped around the outside of the mold cavity 9 can fully increase the cooling contact area of ​​the workpiece. The positioning component can perform multiple limits and positioning on the movable frame 4 and the mounting frame 5 to prevent the mold cavity 9 from shifting during splicing and improve the finished product quality of the workpiece processed by injection blowing.

[0019] Specifically, the heat dissipation component includes a water inlet connector 10 installed on the top of the movable frame 4, a water outlet connector 11 installed on the top of the movable frame 4 and opposite to the water inlet connector 10, a water inlet cavity 12 connected to the water inlet connector 10 installed on one side of the mold cavity 9, a water outlet cavity 13 connected to the water outlet connector 11 on one side of the mold cavity 9 near the bottom, and a cooling cavity 14 opened on the outer side of the mold cavity 9. The heat dissipation component also includes a sealing plate 15 fixedly installed on one side of the moving mold 7, a sealing groove 16 opened on one side of the fixed mold 6, three evenly arranged first sealing rings 17 added to the outer side of the sealing plate 15, two second sealing rings 18 fixedly installed on the inner side wall of the sealing groove 16, the first sealing rings 17 and the second sealing rings 18 being staggered, four circumferentially arranged limiting rods 24 fixedly installed on one side of the fixed mold 6, four circumferentially arranged limiting grooves 25 opened on one side of the moving mold 7, and a cooling groove 141 opened on the inner side wall of the cooling cavity 14, the cooling groove 141 being spiral-shaped.

[0020] When the moving mold 7 and the fixed mold 6 are joined, the two mold cavities 9 are joined together. The sealing plate 15 is inserted into the sealing groove 16. Then, two second sealing rings 18 are embedded in the gap between three first sealing rings 17 to increase the sealing effect and prevent coolant from overflowing. The limiting rod 24 is inserted into the limiting groove 25 to increase the accuracy of the joining of the fixed mold 6 and the moving mold 7. The water inlet connector 10 introduces coolant into the cooling cavity 14 through the water inlet cavity 12. The cooling groove 141 is spiral-shaped to facilitate the flow of coolant and also to facilitate the cooling of the workpiece. The coolant in the cooling cavity 14 can absorb heat and cool the mold. Then, the cooling water is discharged through the water outlet cavity 13 and the water outlet connector 11 for recycling, which improves the accuracy and practicality of the injection blow molding operation for workpiece processing.

[0021] More specifically, the positioning components include positioning rods 19 fixedly installed on one side of the bracket 3 and near the four corners, with springs 20 fitted on the outer side of the positioning rods 19. Positioning blocks 21 are installed on both sides of the mounting frame 5 and both sides of the movable frame 4 by bolts. Positioning plates 501 are installed on both sides of the mounting frame 5 by bolts. The positioning plates 501 pass through the positioning blocks 21 and are slidably connected to them. The positioning rods 19 pass through the movable frame 4 and are slidably connected to it. The positioning components also include positioning strips 22 fixedly installed on the other two sides of the mounting frame 5 by bolts. A sliding hole 23 is opened on one side of the positioning strip 22. An internal hexagon bolt rod is screwed to the top of the movable frame 4 and is slidably connected to the sliding hole 23.

[0022] Furthermore, the positioning rod 19 can guide and position the movable frame 4, and the spring 20 on the outside of the positioning rod 19 can squeeze and push the movable frame 4. The positioning plate 501 passes through the two positioning blocks 21 to position and guide the movement of the movable frame 4. When the movable frame 4 approaches or moves away from the mounting frame 5, the hexagonal bolt rod slides in the sliding hole 23. The hexagonal bolt rod can be screwed and rotated to lock and fix the positioning strip 22, thereby improving the stability and practicality of the splicing and positioning of the moving mold 7 and the fixed mold 6.

[0023] Working principle: First, start the electric push rod 8, which drives the movable frame 4 to slide within the bracket 3 and the fixed frame 1. At this time, the movable frame 4 drives the moving mold 7 to slide outside the fixed column 2. The spring 20 on the outside of the positioning rod 19 squeezes and pushes the movable frame 4. At this time, the positioning plate 501 passes through the two positioning blocks 21 to position and guide the movement of the movable frame 4. The fixed mold 6 and the moving mold 7 are tightly fitted to form the mold cavity 9 of the workpiece. Then, through the injection nozzle on one side of the fixed frame 1, the hot melt material is injected into the mold cavity 9 for injection processing. Then, through the water inlet connector 10, the coolant is introduced into the cooling cavity 14 through the water inlet chamber 12. The coolant in the cooling cavity 14 absorbs heat and cools the mold. Then, through the water outlet chamber 13, the cooling water is discharged through the water outlet connector 11 for recycling.

[0024] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A medical dropper forming device integrating injection and blowing, comprising a fixing frame (1), characterized in that: The fixed frame (1) has brackets (3) installed on one side and near the four corners via fixed columns (2). A movable frame (4) is fitted on the outside of the fixed column (2). An installation frame (5) is fixedly installed on one side of the fixed frame (1). A fixed mold (6) is embedded in the inner side of the installation frame (5). A movable mold (7) is embedded in the inner side of the movable frame (4). An electric push rod (8) is installed between the movable frame (4) and the bracket (3). A mold cavity (9) for workpiece forming is opened in the inner side of the fixed mold (6) and the inner side of the movable mold (7). A heat dissipation component for cooling the workpiece is added to the mold cavity (9). A positioning component is installed between the movable frame (4) and the installation frame (5).

2. The injection-blowing integrated medical dropper forming device according to claim 1, characterized in that: The heat dissipation component includes a water inlet connector (10) installed on the top of the movable frame (4), a water outlet connector (11) installed on the top of the movable frame (4) and on the opposite side of the water inlet connector (10), a water inlet cavity (12) connected to the water inlet connector (10) installed on one side of the mold cavity (9), a water outlet cavity (13) connected to the water outlet connector (11) on one side of the mold cavity (9) and near the bottom, and a cooling cavity (14) opened on the outside of the mold cavity (9).

3. The injection-blowing integrated medical dropper forming device according to claim 2, characterized in that: The heat dissipation component also includes a sealing plate (15) fixedly installed on one side of the moving mold (7). A sealing groove (16) is provided on one side of the fixed mold (6). Three first sealing rings (17) are evenly arranged on the outer side of the sealing plate (15). Two second sealing rings (18) are fixedly installed on the inner side wall of the sealing groove (16). The first sealing rings (17) and the second sealing rings (18) are misaligned.

4. The injection-blowing integrated medical dropper forming device according to claim 3, characterized in that: The positioning component includes positioning rods (19) fixedly installed on one side of the bracket (3) and near the four corners respectively. Springs (20) are fitted on the outside of the positioning rods (19). Positioning blocks (21) are installed on both sides of the mounting frame (5) and both sides of the movable frame (4) by bolts. Positioning plates (501) are installed on both sides of the mounting frame (5) by bolts. The positioning plates (501) pass through the positioning blocks (21) and are slidably connected to them. The positioning rods (19) pass through the movable frame (4) and are slidably connected to them.

5. The injection-blowing integrated medical dropper forming device according to claim 4, characterized in that: The positioning component also includes positioning strips (22) that are fixedly installed on the other two sides of the mounting frame (5) by bolts. A sliding hole (23) is provided on one side of the positioning strip (22). An internal hexagon bolt rod is screwed to the top of the movable frame (4). The internal hexagon bolt rod is slidably connected to the sliding hole (23).

6. The injection-blowing integrated medical dropper forming device according to claim 3, characterized in that: The fixed mold (6) has four circumferentially arranged limiting rods (24) fixedly installed on one side, and the moving mold (7) has four circumferentially arranged limiting grooves (25) on one side.

7. The injection-blowing integrated medical dropper forming device according to claim 6, characterized in that: The inner wall of the cooling chamber (14) is provided with a cooling groove (141), which is spiral in shape.

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