Disposable medical device mold runner plate

Abstract

This utility model discloses a flow channel plate for a disposable medical device mold, belonging to the field of injection mold technology. It includes a shell, a top cover, an injection port, and a connecting pipe; it also includes a quick-release mechanism, comprising a fixed shell fixedly connected to the outer wall of the shell, with a groove on the fixed shell; a positioning plate movably disposed on the top cover, with a protrusion fixed on the positioning plate; a limit component is provided between the top cover and the positioning plate, and a spring within the limit component applies an elastic thrust to the positioning plate, causing the protrusion to engage in the groove for locking. It also includes a sealing mechanism disposed inside the injection port. This utility model achieves rapid opening and closing of the top cover and shell through the quick-release mechanism, making operation convenient and improving production efficiency; the sealing mechanism ensures the sealing of the injection joint, effectively preventing melt leakage and impurity contamination, and guaranteeing the cleanliness and quality of the finished medical device.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to the runner plate for disposable medical device molds. Background Technology

[0002] Disposable medical devices, such as syringes and infusion tubing, are widely used in modern medicine due to their safety, hygiene, and ease of use. These products typically have huge demand, and their production mainly relies on injection molding technology, which uses specific molds to shape molten plastic.

[0003] In the injection molding cycle, the opening and closing of the mold is one of the key links, and its efficiency directly affects the entire production cycle. Traditionally, when fixing the top cover and the shell, the mold runner plate is mostly fastened with bolts or clamped by a large external pressure plate.

[0004] However, using bolts for fixing requires workers to tighten or loosen them one by one, which is time-consuming and labor-intensive. This greatly prolongs the time for opening and closing the mold, making it difficult to meet the requirements of the massive and rapid production pace of disposable medical devices. This directly constitutes a bottleneck in the production cycle and limits the improvement of production capacity.

[0005] Therefore, this utility model proposes a disposable medical device mold flow channel plate to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems in the existing technology of disposable medical device mold runner plates, the mold top cover and shell are mostly fixed with bolts, which makes the disassembly and assembly process cumbersome and time-consuming, affecting production efficiency. In addition, the injection port is not sealed properly, which can easily lead to melt leakage or external impurity contamination. The present invention aims to provide a disposable medical device mold runner plate with an improved structure that can effectively solve the above problems.

[0007] This utility model provides a flow channel plate for a disposable medical device mold, including: a shell, a top cover, an injection port, a connecting pipe; as well as a quick-release mechanism and a sealing mechanism.

[0008] The quick-release mechanism includes a fixed shell, a positioning plate, a protrusion, and a limiting component. The limiting component includes a limiting rod and a spring. The fixed shell is fixedly connected to the outer wall of the shell and has a groove. The positioning plate is movably disposed on the top cover, and the protrusion is fixedly connected to the outer side of the positioning plate. The limiting rod is connected between the top cover and the positioning plate, and the spring is sleeved on the limiting rod to apply an elastic thrust to the positioning plate, so that the positioning plate is inserted into the fixed shell, and the protrusion can be engaged in the groove.

[0009] The sealing mechanism includes a limiting groove, a first sealing ring, a second sealing ring, and a connecting post; the limiting groove is formed on the inner wall of the injection port; both the first sealing ring and the second sealing ring are accommodated in the limiting groove; the connecting post is fixedly connected between the first sealing ring and the second sealing ring, and fixes the sealing mechanism in the limiting groove.

[0010] Preferably, the quick-release mechanism is provided in at least two sets and is symmetrically arranged on opposite sides of the top cover and the housing, so as to make the top cover evenly stressed when locked.

[0011] Preferably, the surface shape of the protrusion and the inner wall shape of the groove are configured to fit each other in a snap-fit ​​structure, and the protrusion has a guiding bevel to facilitate stable snap-fit ​​into the groove when pressed.

[0012] Preferably, both the first sealing ring and the second sealing ring are elastic sealing rings, and their inner diameter is adapted to the injection molding machine nozzle, so as to elastically fit with its outer wall when the nozzle is inserted into the injection port.

[0013] Preferably, the limiting groove is an annular groove formed circumferentially along the inner wall of the injection port, and the first sealing ring and the second sealing ring are respectively accommodated in the annular groove.

[0014] Preferably, there are two connecting posts, which are symmetrically distributed between the first sealing ring and the second sealing ring, and the two ends of the connecting posts are respectively fixedly connected to the first sealing ring and the second sealing ring.

[0015] Preferably, the connecting pipe is disposed in the internal flow channel of the housing, with its inlet end connected to the bottom outlet of the injection port, and its outlet end connected to the cavity through a flow divider structure.

[0016] Preferably, one end of the limiting rod is fixed to the top cover, and the other end can slide through the positioning plate, with both ends of the spring abutting between the top cover and the positioning plate respectively.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model solves the problem that the existing medical device mold top cover and shell are usually fixed by bolts or other means, which leads to cumbersome opening and closing and low efficiency. It achieves the technical effect of quickly locking and opening the mold, significantly shortening the molding cycle and improving production efficiency by setting up a quick-release mechanism consisting of a fixed shell, a positioning plate, a protrusion and a limiting component containing a spring.

[0019] 2. This utility model solves the problem in the prior art where the nozzle of the injection molding machine and the injection port of the mold are not tightly connected, which easily leads to melt leakage or intrusion of external impurities. It achieves the technical effect of ensuring accurate melt injection, preventing material waste, effectively avoiding impurity contamination, and ensuring the cleanliness and quality of disposable medical device products.

[0020] 3. This utility model solves the problems of complex operation and uneven locking force of traditional manual locking mechanisms by automatically engaging the positioning plate driven by the spring in the quick-release mechanism with the groove on the fixed shell. It achieves the technical effects of automated locking action, simple operation and uniform and reliable locking force, and further improves the stability of product molding and the convenience of operation. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the flow channel plate for a disposable medical device mold proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the shell structure of the flow channel plate for the disposable medical device mold proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of the fixing shell of the flow channel plate of the disposable medical device mold proposed in this utility model;

[0024] Figure 4 This is a schematic diagram of the limiting groove of the flow channel plate of the disposable medical device mold proposed in this utility model.

[0025] Legend:

[0026] 1. Housing; 2. Top cover; 3. Injection port;

[0027] 4. Quick-release mechanism; 41. Protrusion; 42. Positioning plate; 43. Groove; 44. Fixing shell;

[0028] 45. Limiting component; 451. Limiting rod; 452. Spring;

[0029] 5. Sealing mechanism; 51. Sealing ring one; 52. Sealing ring two; 53. Connecting post; 54. Limiting groove;

[0030] 6. Connecting tube; 7. Cavity. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0032] Example:

[0033] Please refer to Figures 1 to 4 This utility model provides a flow channel plate for disposable medical device molds, which aims to solve the problems of low opening and closing efficiency of the mold top cover and poor sealing of the injection port in the prior art, which can easily lead to melt leakage or impurity contamination.

[0034] like Figure 1 As shown, the flow channel plate of the disposable medical device mold includes a housing 1 and a top cover 2 that is detachably covered on the top of the housing 1; a cavity 7 is provided inside the housing 1; an injection port 3 penetrates the top cover 2; a connecting pipe 6 is provided inside the housing 1, one end of the connecting pipe 6 is connected to the injection port 3, and the other end is branched to the cavity 7;

[0035] like Figure 1 , Figure 2 and Figure 3 As shown, the flow channel plate of the disposable medical device mold also includes a quick-release mechanism 4; the quick-release mechanism 4 includes a fixed shell 44, a positioning plate 42, a protrusion 41, and a limiting component 45; the fixed shell 44 is fixedly connected to the outer wall of the shell 1; a groove 43 is provided on the fixed shell 44; the positioning plate 42 is movably disposed on the top cover 2; the protrusion 41 is fixedly connected to the outer side of the positioning plate 42; the limiting component 45 includes a limiting rod 451 and a spring 452; the limiting rod 451 is connected between the top cover 2 and the positioning plate 42; the spring 452 is sleeved on the limiting rod 451; the spring 452 is used to apply an elastic thrust to the positioning plate 42, so that the positioning plate 42 is inserted into the fixed shell 44 under the action of the elastic thrust, and the protrusion 41 can be engaged in the groove 43.

[0036] Reference Figure 1 , Figure 2 and Figure 3 The fixed shell 44 is installed on the outer wall of the shell 1 by a fixed connection. The fixed shell 44 has a groove 43. The surface shape of the protrusion 41 and the inner wall shape of the groove 43 are set to a matching snap-fit ​​structure. The protrusion 41 has a guide slope so that it can be stably snapped into the groove 43 when pressed. The top cover 2 is movably provided with a positioning plate 42. The protrusion 41 is fixedly connected to the outer side of the positioning plate 42.

[0037] A limiting component 45 is provided between the top cover 2 and the positioning plate 42. The limiting component 45 includes a limiting rod 451 and a spring 452. One end of the limiting rod 451 is fixed to the top cover 2, and the other end can slide through the positioning plate 42. The spring 452 is sleeved on the limiting rod 451, and the two ends of the spring 452 abut against the top cover 2 and the positioning plate 42 respectively. In the assembled state, the spring 452 applies an elastic thrust to the positioning plate 42, so that the positioning plate 42 is inserted into the fixed shell 44. At the same time, the protrusion 41 is engaged in the groove 43 of the fixed shell 44. The quick release mechanism 4 is provided in at least two sets and is symmetrically arranged on the opposite sides of the top cover 2 and the shell 1 to make the top cover 2 evenly stressed when locked.

[0038] Reference Figure 4 The sealing mechanism 5 includes a limiting groove 54, a first sealing ring 51, a second sealing ring 52, and connecting posts 53. The limiting groove 54 is opened on the inner wall of the injection port 3. The first sealing ring 51 and the second sealing ring 52 are both elastic sealing rings, and their inner diameters are adapted to the injection molding machine nozzle. They are used to elastically fit the nozzle against its outer wall when the nozzle is inserted into the injection port 3. The limiting groove 54 is an annular groove opened circumferentially along the inner wall of the injection port 3. The first sealing ring 51 and the second sealing ring 52 are respectively accommodated in the annular groove. There are two connecting posts 53, which are symmetrically distributed between the first sealing ring 51 and the second sealing ring 52. The two ends of the connecting posts 53 are respectively fixedly connected to the first sealing ring 51 and the second sealing ring 52. The connecting pipe 6 is set in the internal flow channel of the housing 1. The inlet end of the connecting pipe 6 is connected to the bottom outlet of the injection port 3, and the outlet end is connected to the cavity 7 through a diversion structure.

[0039] The implementation principle of this application embodiment is as follows: The nozzle of the injection molding machine injects the melt through the injection port 3 into the connecting pipe 6 to fill the cavity 7. After the melt is filled, the top cover 2 is placed on the top of the housing 1, and the protrusion 41 is pressed. Under the contraction action of the limiting rod 451 and the spring 452, the positioning plate 42 moves towards the top cover 2, inserting the positioning plate 42 into the fixed shell 44 fixed to the outer wall of the housing 1. The pressure on the protrusion 41 is released, and the protrusion 41 is locked into the groove 43 of the fixed shell 44 under the reset action of the spring 452. The positioning plate 42 is then inserted into the fixed shell 44 fixed to the outer wall of the housing 1. Under the reset action of 52, it is stuck inside the fixed shell 44, realizing the locking of the shell 1 and the top cover 2, so that the melt can be better formed. When it is necessary to remove the formed melt, press the protrusion 41 again to release the fastening effect of the spring 452 on the positioning plate 42, pull the top cover 2 upward, so that the positioning plate 42 is pulled out of the fixed shell 44, realizing the quick opening of the top cover 2. The limiting component 45 fixes the positioning plate 42 to the outer wall of the top cover 2, realizing the fastening effect between the positioning plate 42 and the fixed shell 44. The quick release mechanism 4 is installed on the corresponding sides of the top cover 2 and the shell 1, so that the melt can be quickly removed after cooling.

[0040] The connection between sealing ring 1 51 and sealing ring 2 52 is made by connecting post 53 and fixed inside the limiting groove 54 opened inside the injection port 3. When the nozzle of the injection molding machine injects melt into the injection port 3, the injection port 3 can be put on the nozzle. By utilizing the sealing property of the sealing ring, the nozzle can accurately inject the melt into the flow channel plate. The sealing mechanism 5 ensures that the melt is accurately injected into the flow channel plate, prevents the nozzle from deviating, and allows the melt to flow to the outer wall of the flow channel plate. It can also prevent impurities from entering the housing 1.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. Disposable medical device mold runner plate, including: The housing (1) is provided with a cavity (7), a quick-release mechanism (4) and a sealing mechanism (5); Top cover (2), which is detachably covered on top of housing (1); Injection port (3), the injection port (3) penetrates the top cover (2); as well as A connecting pipe (6) is disposed inside the housing (1). One end of the connecting pipe (6) is connected to the injection port (3), and the other end is branched to the cavity (7). The quick-release mechanism (4) is characterized in that it includes: a fixed shell (44), a positioning plate (42) and a protrusion (41). The fixed shell (44) is fixedly connected to the outer wall of the shell (1). A groove (43) is provided on the fixed shell (44). The positioning plate (42) is movably disposed on the top cover (2). The protrusion (41) is fixedly connected to the outer side of the positioning plate (42). And a limiting component (45), the limiting component (45) includes a limiting rod (451) and a spring (452), the limiting rod (451) is connected between the top cover (2) and the positioning plate (42), and the spring (452) is sleeved on the limiting rod (451).

2. The flow channel plate for disposable medical device molds according to claim 1, characterized in that, The sealing mechanism (5) includes: a limiting groove (54), a first sealing ring (51), a second sealing ring (52), and a connecting post (53). The limiting groove (54) is opened on the inner wall of the injection port (3). The first sealing ring (51) and the second sealing ring (52) are both accommodated in the limiting groove (54). The connecting post (53) is fixedly connected between the first sealing ring (51) and the second sealing ring (52).

3. The flow channel plate for disposable medical device molds according to claim 1, characterized in that, The quick-release mechanism (4) is provided in at least two sets and is symmetrically arranged on the opposite sides of the top cover (2) and the housing (1) to ensure that the top cover (2) is subjected to uniform force when locked.

4. The flow channel plate for a disposable medical device mold according to claim 1, characterized in that, The surface shape of the protrusion (41) and the inner wall shape of the groove (43) are configured to be mutually adapted to a snap-fit ​​structure. The protrusion (41) has a guiding slope so as to stably snap into the groove (43) when pressed.

5. The flow channel plate for a disposable medical device mold according to claim 2, characterized in that, Both the first sealing ring (51) and the second sealing ring (52) are elastic sealing rings, and their inner diameter is adapted to the injection molding machine nozzle. They are used to elastically fit against the outer wall of the nozzle when it is inserted into the injection port (3) to achieve sealing.

6. The flow channel plate for a disposable medical device mold according to claim 2, characterized in that, The limiting groove (54) is an annular groove opened circumferentially along the inner wall of the injection port (3), and the sealing ring one (51) and sealing ring two (52) are respectively accommodated in the annular groove.

7. The flow channel plate for disposable medical device molds according to claim 2, characterized in that, There are two connecting posts (53), which are symmetrically distributed at the connection between the first sealing ring (51) and the second sealing ring (52). The two ends of the connecting posts (53) are respectively fixedly connected to the first sealing ring (51) and the second sealing ring (52).

8. The flow channel plate for a disposable medical device mold according to claim 1, characterized in that, The connecting pipe (6) is disposed in the internal flow channel of the housing (1). The inlet end of the connecting pipe (6) is connected to the bottom outlet of the injection port (3), and the outlet end is connected to the cavity (7) through a flow divider structure.

9. The flow channel plate for a disposable medical device mold according to claim 1, characterized in that, One end of the limiting rod (451) is fixed to the top cover (2), and the other end can slide through the positioning plate (42). The two ends of the spring (452) abut against the top cover (2) and the positioning plate (42) respectively.

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