Mould for producing disposable medicine dispensing syringe

Abstract

The utility model discloses a mold for producing a disposable medicine dispensing syringe. The mold comprises a lower mold base and a demolding assembly, guide columns are fixedly connected to the four corners of the upper end of the lower mold base correspondingly, the outer surfaces of the four guide columns are slidably connected with the sliding holes in the adjacent corners of the upper mold base correspondingly, injection mold cores are arranged in the middle of the upper end of the lower mold base and the middle of the lower end of the upper mold base correspondingly, and a mounting base is arranged at the bottom end of the lower mold base; the demolding assembly is arranged in the lower mold base, and the bottom end of the demolding assembly is rotationally connected with the upper end of the mounting base; the mold for producing the disposable medicine dispensing syringe further comprises an injection molding flange, the injection molding flange is arranged at the upper end of the injection molding pipeline on the upper side of the upper mold base, and the injection molding pipeline is communicated with the injection molding mold core on the upper side of the injection molding pipeline. And the workload of personnel is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of production of medical consumables, in particular to a mould for producing disposable syringes for dispensing medicines. Background Art

[0002] In the process of using medical consumables, disposable dispensing syringes provide convenience for the use of injections, avoid the risk of cross infection, ensure the safety of patients, are reasonably designed, easy to use, and can meet the operational needs of medical staff. In the production process of disposable dispensing syringes, special molds are required to assist in production;

[0003] The existing mold for producing disposable dispensing syringes is to drive the upper mold base and the lower mold base to close with the help of an external driving device, and then inject a proper amount of molten liquid into the mold core cavity formed by the two. After cooling to a certain extent, the upper mold base and the lower mold base are separated to form a disposable dispensing syringe.

[0004] This type of mold for producing disposable dispensing syringes has the following problems: the mold body lacks separation components, which increases the workload of personnel. Even if a part of the mold can be separated, it needs to be added additionally, which increases the cost, and it only has a lifting function and poor linkage. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a mold for the production of disposable dispensing syringes, which can quickly separate the formed disposable dispensing syringes from the mold, thereby reducing the workload of personnel and effectively solving the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mold for producing a disposable syringe for dispensing medicine, comprising a lower mold base and a demoulding component;

[0007] Lower mold base: The four corners of its upper end are fixedly connected with guide columns, and the outer surfaces of the four guide columns are slidably connected with the sliding holes of the adjacent corners of the upper mold base. The middle part of the upper end of the lower mold base and the middle part of the lower end of the upper mold base are both provided with injection mold cores, and the bottom end of the lower mold base is provided with a mounting seat;

[0008] Demolding assembly: It is arranged inside the lower mold base, and the bottom end of the demoulding assembly is rotatably connected to the upper end of the mounting base;

[0009] Among them: it also includes an injection flange, which is arranged at the upper end of the injection pipe on the upper side of the upper mold base. The injection pipe is connected to the injection mold core on the upper side, and can quickly separate the formed disposable dispensing syringe from the mold, reducing the workload of personnel. The lifting separation and pulling out are coordinated, the structural design is reasonable, and the production efficiency and quality of the disposable dispensing syringe are improved.

[0010] Furthermore, it also includes a single-chip microcomputer, which is placed outside the lower mold base, and the input end of the single-chip microcomputer is electrically connected to an external power supply to regulate the normal operation of each electrical appliance.

[0011] Furthermore, the demolding assembly includes a motor, a demolding column, an oblique opening, a transmission screw, a convex shaft, a slider and a first dust cover, the first dust cover is fixedly connected to the bottom wall of the lower mold base, the two sliding holes at the upper end of the first dust cover are slidably connected with the demolding columns, the demolding columns pass through the guide opening at the bottom end of the lower mold base, the bottom ends of the outer surfaces of the demolding columns are provided with convex shafts, the upper ends of the demolding columns are cooperated and installed with the bottom wall of the injection mold core on the lower side, the left and right inner walls of the first dust cover are rotatably connected with a transmission screw through a bearing, the left and right ends of the outer surface of the transmission screw are threadedly connected with sliders, the bottom ends of the sliders are slidably connected with the guide grooves of the bottom wall of the lower mold base, the middle parts of the sliders are provided with oblique openings, the convex shafts are located inside the adjacent oblique openings, the motor is arranged on the left side of the bottom wall of the lower mold base, the output shaft of the motor is fixedly connected to the left end of the transmission screw, the input end of the motor is electrically connected to the output end of the single-chip microcomputer, so as to realize the rapid lifting and separation of the disposable dispensing syringe after molding.

[0012] Furthermore, the demolding assembly also includes a transmission shaft, a demolding paddle, a bevel gear and a rotating shaft. A second dust cover is provided on the right side of the upper end of the mounting seat, and a rotating shaft is rotatably connected to the right side of the upper end of the mounting seat. The middle part of the rotating shaft is rotatably connected to the top wall of the second dust cover, and a demolding paddle is provided on the upper end of the rotating shaft outside the second dust cover. The transmission shaft is arranged at the right end of the transmission screw, and the transmission shaft is rotatably connected to the right side wall of the lower mold base and the left side wall of the second dust cover respectively. The outer surfaces of the transmission shaft and the rotating shaft located inside the second dust cover are respectively fixed with bevel gears, and the two bevel gears are meshed and connected to realize the removal of the disposable dispensing syringe after molding.

[0013] Furthermore, a connecting seat is provided at the upper end of the upper die seat, and evenly distributed connecting ports are opened on the upper end edge of the connecting seat to facilitate connection with an external hydraulic telescopic column.

[0014] Furthermore, it also includes a limit plate, which is respectively arranged at the upper end of the guide column to limit the upward position.

[0015] Furthermore, four corners of the upper end of the mounting seat are respectively provided with mounting openings to facilitate connection with a work station.

[0016] Compared with the prior art, the beneficial effects of the utility model are: the mold for producing a disposable syringe for dispensing medicine has the following advantages:

[0017] Through the regulation of the single-chip microcomputer, the motor runs, the output shaft rotates to drive the transmission screw to rotate, and the transmission screw thread drives the slider to slide to the left in the guide groove of the bottom wall of the lower mold base. Due to the existence of the inclined surface of the bevel, the convex shaft shifts vertically in the bevel to adapt to the movement of the slider. At this time, the convex shaft drives the demolding column to slide upward in the sliding hole at the upper end of the first dust cover and the guide opening at the bottom end of the lower mold base, thereby lifting the disposable dispensing syringe inside the injection mold core on the lower side, so that the disposable dispensing syringe is lifted and quickly separated from the inner wall of the injection mold core on the lower side. During the rotation of the transmission screw, the transmission shaft is driven to rotate synchronously, and then the bevel gear on the upper end of the transmission shaft is driven to rotate. Under the meshing of the bevel gear on the upper end of the rotating shaft, it drives The rotating shaft and the demoulding paddle rotate, and when the demoulding column is lifted, the demoulding paddle also rotates synchronously. When the demoulding column is lifted close to the upper end, the demoulding paddle contacts the disposable dispensing syringe and pushes it out of the lower mold seat. After that, through the regulation of the single-chip microcomputer, the motor reverses to drive the demoulding column to reset. After that, the demoulding paddle is misaligned with the lower mold seat (without affecting the closed use of the lower mold seat and the upper mold seat). The upper end curved surface of the demoulding column fits the inner wall of the injection mold core on the lower side, which does not affect the molding quality. The molded disposable dispensing syringe can be quickly separated from the mold, which reduces the workload of the personnel. The lifting separation and pulling out are coordinated, and the structural design is reasonable, which improves the production efficiency and quality of the disposable dispensing syringes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the planar cross-sectional structure of the demoulding component of the utility model.

[0020] In the figure: 1 mounting base, 2 lower mold base, 3 guide column, 4 upper mold base, 5 injection mold core, 6 injection molding flange, 7 demoulding assembly, 701 motor, 702 demoulding column, 703 oblique mouth, 704 transmission screw, 705 convex shaft, 706 slider, 707 first dust cover, 708 transmission shaft, 709 demoulding paddle, 710 bevel gear, 711 rotating shaft, 8 second dust cover, 9 connecting base, 10 limit plate, 11 mounting port, 12 single chip computer. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-2 , This embodiment provides a technical solution: a mold for producing a disposable dispensing syringe, including a lower mold base 2 and a demoulding component 7;

[0023] Lower die base 2: The four corners of its upper end are respectively fixedly connected with guide columns 3, and also include limit plates 10, which are respectively arranged at the upper ends of the guide columns 3, and the outer surfaces of the four guide columns 3 are slidably connected with the sliding holes of the adjacent corners of the upper die base 4, and the upper end of the upper die base 4 is provided with a connecting seat 9, and the upper end edge of the connecting seat 9 is provided with evenly distributed connecting ports, and the middle part of the upper end of the lower die base 2 and the middle part of the lower end of the upper die base 4 are both provided with injection mold cores 5, and the bottom end of the lower die base 2 is provided with a mounting seat 1, which also includes a single-chip microcomputer 12, which is placed outside the lower die base 2, and the input end of the single-chip microcomputer 12 is electrically connected to an external power supply, and the four corners of the upper end of the mounting seat 1 are respectively provided with mounting ports 11, which are convenient for connecting the whole with the installation station by bolts;

[0024] Demolding assembly 7: It is arranged inside the lower mold base 2, and the bottom end of the demolding assembly 7 is rotatably connected to the upper end of the mounting base 1. The demolding assembly 7 includes a motor 701, a demolding column 702, a bevel 703, a transmission screw 704, a convex shaft 705, a slider 706 and a first dust cover 707. The first dust cover 707 is fixedly connected to the bottom wall of the lower mold base 2. The two sliding holes at the upper end of the first dust cover 707 are slidably connected with the demolding columns 702. The demolding columns 702 pass through the guide opening at the bottom end of the lower mold base 2. The outer surface bottom end of the demolding column 702 is provided with a convex shaft 705. The upper end of the demolding column 702 is mounted in cooperation with the bottom wall of the lower injection mold core 5. The transmission screw 704 is rotatably connected between the left and right inner walls of the first dust cover 707 through a bearing. The left and right ends of the outer surface of the transmission screw 704 are threadedly connected with sliders 706, the bottom ends of the sliders 706 are slidably connected to the guide grooves of the bottom wall of the lower mold base 2, the middle parts of the sliders 706 are provided with beveled openings 703, the convex shafts 705 are located inside the adjacent beveled openings 703, the motor 701 is arranged on the left side of the bottom wall of the lower mold base 2, the output shaft of the motor 701 is fixedly connected to the left end of the transmission screw 704, the input end of the motor 701 is electrically connected to the output end of the single-chip microcomputer 12, the demoulding assembly 7 also includes a transmission shaft 708, a demoulding paddle 709, a bevel gear 710 and a rotating shaft 711, a second dust cover 8 is provided on the right side of the upper end of the mounting seat 1, the upper right end of the mounting seat 1 is rotatably connected to the rotating shaft 711, the middle part of the rotating shaft 711 is connected to the second dust cover The top wall of the dust cover 8 is rotatably connected, and a demoulding paddle 709 is provided at the upper end of a rotating shaft 711 located outside the second dust cover 8. A transmission shaft 708 is arranged at the right end of a transmission screw 704. The transmission shaft 708 is rotatably connected to the right side wall of the lower mold base 2 and the left side wall of the second dust cover 8 respectively. The transmission shaft 708 and the outer surfaces of the rotating shaft 711 located inside the second dust cover 8 are respectively fixed with bevel gears 710. The two bevel gears 710 are meshed and connected. When the motor 701 is running, the output shaft rotates to drive the transmission screw 704 to rotate. The thread of the transmission screw 704 drives the slider 706 to slide left in the guide groove of the bottom wall of the lower mold base 2. Due to the existence of the inclined surface of the bevel 703, the convex shaft 705 is vertically displaced in the bevel 703 to adapt to the slider 7 06 moves, at this time, the convex shaft 705 drives the demoulding column 702 to slide upward in the sliding hole at the upper end of the first dust cover 707 and the guide port at the bottom end of the lower mold base 2, thereby lifting the disposable dispensing syringe located inside the injection mold core 5 on the lower side, so that the disposable dispensing syringe is lifted and quickly separated from the inner wall of the injection mold core 5 on the lower side. During the rotation of the transmission screw 704, the transmission shaft 708 is driven to rotate synchronously, and then the bevel gear 710 at the upper end of the transmission shaft 708 is driven to rotate. Under the meshing of the bevel gear 710 at the upper end of the rotating shaft 711, the rotating shaft 711 and the demoulding paddle 709 are driven to rotate. When the demoulding column 702 is lifted, the demoulding paddle 709 also rotates synchronously. When the demoulding column 702 is lifted and close to the uppermost end,The demoulding paddle 709 contacts the disposable dispensing syringe and pushes it out of the lower mold base 2. After that, the motor 701 is reversed through the control of the single-chip microcomputer 12 to drive the demoulding column 702 to reset. After that, the demoulding paddle 709 is misaligned with the lower mold base 2 (without affecting the closed use of the lower mold base 2 and the upper mold base 4). The upper end curved surface of the demoulding column 702 fits the inner wall of the lower injection mold core 5, without affecting the molding quality.

[0025] Among them: it also includes an injection molding flange 6, which is arranged at the upper end of the injection molding pipe on the upper side of the upper mold base 4. The injection molding pipe is connected to the injection mold core 5 on the upper side, and is connected to the external injection molding pipe through the injection molding flange 6 for quick docking.

[0026] The working principle of the mold for producing disposable dispensing syringes provided by the utility model is as follows: the injection flange 6 is connected to the external injection pipe, and is connected to the telescopic end of the external hydraulic telescopic column through the connection port on the connecting seat 9 by bolts, and the external hydraulic telescopic column is extended to drive the upper mold base 4 to slide downward on the outer surface of the four guide columns 3 until the upper mold base 4 is fitted with the lower mold base 2. At this time, the two injection mold cores 5 are matched to form a complete disposable dispensing syringe injection core body, and then the external injection pump injects the hot melt into the individual through the external injection pipe and the injection pipe on the upper side of the upper mold base 4. The injection mold core 5 is matched to form a complete cavity. After cooling for a certain period of time, the telescopic end of the external hydraulic telescopic column contracts, driving the upper mold base 4 to separate from the lower mold base 2, and the formed disposable syringe for dispensing medicine remains in the injection mold core 5 on the lower side. At the same time, through the regulation of the single-chip microcomputer 12, the motor 701 runs, the output shaft rotates to drive the transmission screw 704 to rotate, and the transmission screw 704 thread drives the slider 706 to slide to the left in the guide groove of the bottom wall of the lower mold base 2. Due to the existence of the inclined surface of the oblique mouth 703, the convex shaft 705 is vertically displaced in the oblique mouth 703 to adapt to the movement of the slider 706. When the convex shaft 705 drives the demoulding column 702 to slide upward in the sliding hole at the upper end of the first dust cover 707 and the guide opening at the bottom end of the lower mold base 2, the disposable dispensing syringe located inside the injection mold core 5 on the lower side is lifted up, so that the disposable dispensing syringe is lifted up and quickly separated from the inner wall of the injection mold core 5 on the lower side. During the rotation of the transmission screw 704, the transmission shaft 708 is driven to rotate synchronously, and then the bevel gear 710 at the upper end of the transmission shaft 708 is driven to rotate. Under the meshing of the bevel gear 710 at the upper end of the rotating shaft 711, the rotating shaft 711 and the demoulding paddle 709 are driven to rotate. During the lifting process of 702, the demoulding paddle 709 also rotates synchronously. When the demoulding column 702 is lifted close to the upper end, the demoulding paddle 709 contacts the disposable dispensing syringe and pushes it out of the lower mold base 2. After that, through the regulation of the single-chip microcomputer 12, the motor 701 reverses to drive the demoulding column 702 to reset. After that, the demoulding paddle 709 is misaligned with the lower mold base 2 (without affecting the closed use of the lower mold base 2 and the upper mold base 4). The upper end curved surface of the demoulding column 702 fits the inner wall of the injection mold core 5 on the lower side, which does not affect the molding quality. Repeat the above operations to carry out the injection molding production of the next disposable dispensing syringe.

[0027] It is worth noting that the single chip microcomputer 12 disclosed in the above embodiment can be S7-200, the motor 701 can be HG-AK series small motor, and the single chip microcomputer 12 controls the motor 701 to work using methods commonly used in the prior art.

[0028] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A mold for producing a disposable syringe for dispensing medicine, characterized by: It comprises a lower mold base (2) and a demoulding component (7); The lower mold base (2) has guide columns (3) fixedly connected to the four corners of its upper end respectively, and the outer surfaces of the four guide columns (3) are slidably connected to the sliding holes at the adjacent corners of the upper mold base (4). The middle part of the upper end of the lower mold base (2) and the middle part of the lower end of the upper mold base (4) are both provided with an injection mold core (5), and the bottom end of the lower mold base (2) is provided with a mounting base (1); Demolding assembly (7): it is arranged inside the lower mold base (2), and the bottom end of the demoulding assembly (7) is rotatably connected to the upper end of the mounting base (1); Among them: it also includes an injection flange (6), which is arranged at the upper end of the injection pipe on the upper side of the upper mold base (4), and the injection pipe is connected to the injection mold core (5) on the upper side.

2. The mold for producing a disposable syringe for dispensing medicine according to claim 1, characterized in that: It also includes a single-chip microcomputer (12), which is placed outside the lower mold base (2), and an input end of the single-chip microcomputer (12) is electrically connected to an external power supply.

3. The mold for producing a disposable syringe for dispensing medicine according to claim 2, characterized in that: The demoulding assembly (7) comprises a motor (701), a demoulding column (702), an oblique opening (703), a transmission screw (704), a convex shaft (705), a slider (706) and a first dust cover (707). The first dust cover (707) is fixedly connected to the bottom wall of the lower mold base (2). The two sliding holes at the upper end of the first dust cover (707) are slidably connected with the demoulding columns (702). The demoulding columns (702) pass through the guide opening at the bottom end of the lower mold base (2). The lower end of the outer surface of the demoulding column (702) is provided with a convex shaft (705). The upper end of the demoulding column (702) is mounted in cooperation with the bottom wall of the lower injection mold core (5). A transmission screw (704) is rotatably connected between the left and right inner walls of the dust cover (707) via a bearing, and sliders (706) are threadedly connected to the left and right ends of the outer surface of the transmission screw (704), and the bottom ends of the sliders (706) are slidably connected to the guide grooves of the bottom wall of the lower die seat (2), and the middle parts of the sliders (706) are provided with oblique openings (703), and the convex shafts (705) are located inside the adjacent oblique openings (703). The motor (701) is arranged on the left side of the bottom wall of the lower die seat (2), and the output shaft of the motor (701) is fixedly connected to the left end of the transmission screw (704), and the input end of the motor (701) is electrically connected to the output end of the single-chip computer (12).

4. The mold for producing a disposable syringe for dispensing medicine according to claim 3, characterized in that: The demoulding assembly (7) further comprises a transmission shaft (708), a demoulding paddle (709), a bevel gear (710) and a rotating shaft (711); a second dust cover (8) is provided on the right side of the upper end of the mounting seat (1); a rotating shaft (711) is rotatably connected to the right side of the upper end of the mounting seat (1); a middle portion of the rotating shaft (711) is rotatably connected to the top wall of the second dust cover (8); a demoulding paddle (709) is provided on the upper end of the rotating shaft (711) outside the second dust cover (8); a transmission shaft (708) is arranged at the right end of the transmission screw (704); the transmission shaft (708) is rotatably connected to the right side wall of the lower mold seat (2) and the left side wall of the second dust cover (8); the outer surfaces of the transmission shaft (708) and the rotating shaft (711) inside the second dust cover (8) are respectively fixedly sleeved with bevel gears (710); and the two bevel gears (710) are meshingly connected.

5. The mold for producing a disposable syringe for dispensing medicine according to claim 1, characterized in that: A connecting seat (9) is provided at the upper end of the upper die seat (4), and evenly distributed connecting openings are provided at the upper end edge of the connecting seat (9).

6. The mold for producing a disposable syringe for dispensing medicine according to claim 1, characterized in that: It also comprises a limiting plate (10), wherein the limiting plates (10) are respectively arranged on the upper ends of the guide pillars (3).

7. The mold for producing a disposable syringe for dispensing medicine according to claim 1, characterized in that: The four corners of the upper end of the mounting seat (1) are respectively provided with mounting openings (11).

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