KR102377450B1 - Device for manufacturing auto-destruct syringes - Google Patents

Abstract

A self-destructing syringe manufacturing device is disclosed. An auto-destructive syringe manufacturing device according to one aspect of the present invention is an apparatus for manufacturing a syringe including a plunger having a destruction portion vulnerable to tensile force formed at a predetermined position and a gasket coupled to the distal end of the plunger, the upper portion of which is open to the upper surface. A plurality of stages having an insertion hole formed therein and an insertion groove communicating with the insertion hole and opening to the outer peripheral surface at the lower portion thereof, are arranged along an annular shape and configured to rotate around a rotating shaft; a rotation index formed in a disk shape and having a loading groove formed on the outer circumferential surface, and configured to rotate at the same speed as the plurality of stages; a rotation frame configured to rotate at the same speed as the plurality of stages and the rotation index, and supporting the support shaft extending downward from each of the plurality of stages so that the support shaft is movable in an up and down direction; And it may include a height adjustment unit disposed below the support shaft and configured to adjust the height of the stage.

Description

DEVICE FOR MANUFACTURING AUTO-DESTRUCT SYRINGES}

The present invention relates to a syringe manufacturing device, and specifically to a syringe manufacturing device capable of manufacturing self-destructing syringes with high yield and low defect rate.

A syringe is a tool used to directly inject medication into a blood vessel and is an essential tool in the medical field. When the user presses the piston of the syringe while the needle of the syringe has penetrated the target's blood vessel, the medicinal solution in the barrel of the syringe is injected into the target's blood vessel through the needle.

Since the needle of the syringe is in direct contact with the patient's blood vessels, if a once-used syringe is reused, there is a risk that the syringe itself may become a medium for infection. Accordingly, disposable syringes have been developed so that reuse is impossible. One type of syringe that is partially destroyed when reuse is attempted and becomes unusable is called an auto-destructive syringe. For example, in an auto-destruct syringe, the part of the plunger that makes up the piston exhibits strong stress against compressive forces but is weak against tensile forces, so that the syringe functions properly when the plunger is pressed in to use, but when the plunger is pulled back for reuse. The plunger may be destroyed by the pulling force.

Meanwhile, in a general method of manufacturing a syringe, while the plunger and the gasket are rotated in a vertically aligned state, the plunger passes under a pressing member whose lower surface is inclined downward and is pressed downward at the same time as it rotates, causing pressure to be applied to the lower end of the plunger. It includes the process of combining gaskets.

However, unlike regular syringes, self-destructing syringes are vulnerable to tensile force, so the force applied to join the gasket is not applied entirely in the vertical direction, but if even a slight force is applied in the horizontal direction, this horizontal stress occurs. acts as a tensile force on the weak area above. Therefore, in the case of an auto-destruct syringe, there is a very high possibility that a force will be applied in the horizontal direction when the plunger contacts a pressurizing member inclined downward. As a result, the plunger is destroyed during the manufacturing process, so the above general syringe manufacturing method is auto-destructive. The problem is that it cannot be applied to syringes.

Therefore, the present invention was developed to solve the above-mentioned problems, and one aspect of the present invention is to provide a syringe manufacturing device capable of manufacturing self-destructing syringes with high yield and low defect rate.

Other objects of the present invention will become clearer through the examples described below.

One aspect of the present invention provides an apparatus for manufacturing a syringe including a plunger having a breakable portion vulnerable to tensile force formed at a predetermined position and a gasket coupled to a distal end of the plunger. This type of automatic destructive syringe manufacturing device has an insertion hole that opens to the upper surface formed at the upper part, and an insertion groove that communicates with the insertion hole and opens to the outer peripheral surface is formed at the lower part, and is arranged along a circular shape and centered around a rotating shaft. a plurality of stages configured to rotate; a rotation index formed in a disk shape and having a loading groove formed on the outer circumferential surface, and configured to rotate at the same speed as the plurality of stages; A rotation frame configured to rotate at the same speed as the plurality of stages and the rotation index, and supporting the support shaft extending downward from each of the plurality of stages so that the support shaft can move in the vertical direction; And it may include a height adjustment unit disposed below the support shaft and configured to adjust the height of the stage.

The apparatus for manufacturing an auto-destruct syringe according to the present invention may have one or more of the following embodiments. For example, the insertion hole may have an inner diameter corresponding to the outer diameter of the plunger.

The gasket is supplied to the plurality of stages so that the gasket is inserted into the insertion groove, and the plunger is supplied to the rotation index so that the plunger can be inserted into the loading groove. The height adjuster moves the stage upward. is moved so that the gasket disposed in the insertion groove is coupled to the plunger disposed in the loading groove, and in a state in which the stage is moved upward, the portion above the destruction portion and the lower portion of the destruction portion among the plungers disposed in the loading groove All of the parts may be located within the insertion hole of the upwardly moved stage. In this case, when the plunger is supplied to the rotation index, a part of the plunger may be inserted into the insertion hole.

The auto-destruct syringe manufacturing device is fixed to a main body frame that does not rotate, and is provided on the upper surface of the rotation index at a position corresponding to the position at which the height adjustment part moves the stage upward, pressing the upper part of the plunger supplied to the rotation index. It may further include a pressing part configured to do so.

The pressing unit may include a fixed plate spaced a predetermined distance from the upper surface of the rotating index. The distance between the upper surface of the rotating index and the fixed plate may be set to correspond to the length at which the top of the plunger protrudes above the upper surface of the rotating index. You can. Meanwhile, the pressing unit may include a pressing roller that rotates along a rotation axis perpendicular to the rotation axis of the rotation shaft while being spaced a predetermined distance from the upper surface of the rotation index or in contact with the upper surface of the rotation index.

The rotation index may include an upper index and a lower index with the loading grooves formed at corresponding positions, and when the plunger is supplied to the rotation index, the plunger is inserted into the loading grooves of each of the upper index and the lower index. It can be.

The height adjusting unit may have an annular shape, its upper surface may have different heights depending on the position, and may include a cam fixed to a main body frame that does not rotate below the rotating frame, and a caster rotatably coupled to the lower part of the support shaft. As the caster moves along the upper surface of the cam and rises and falls according to the height of the cam, the height of the stage coupled to the caster can be adjusted by the support shaft. If necessary, the self-destructing syringe manufacturing device may further include an elastic member disposed on the outer peripheral surface of the support shaft between the rotating frame and the caster.

The auto-destruct syringe manufacturing apparatus includes a gasket supply unit configured to supply the gasket to each of the insertion grooves; And it may further include a plunger supply unit configured to supply the plunger to each of the loading grooves.

According to the means for solving the problems of the present invention as discussed above, various effects including the following can be expected. However, the present invention does not require all of the following effects to be achieved.

The apparatus for manufacturing an auto-destructive syringe according to an embodiment of the present invention makes it possible to manufacture an auto-destructive syringe including a plunger having a fracture portion vulnerable to tensile force with high yield and low defect rate.

Figure 1 is a diagram schematically showing part of the structure of an auto-destruct syringe manufactured by an auto-destruct syringe manufacturing apparatus according to an embodiment of the present invention.
Figure 2 is a perspective view illustrating a part of an automatic destructive syringe manufacturing device according to an embodiment of the present invention.
Figure 3 is a plan view showing the automatic destructive syringe manufacturing device shown in Figure 2.
Figure 4 is an enlarged view showing the stage and rotation index of the automatic destructive syringe manufacturing device according to an embodiment of the present invention.
Figure 5 is a conceptual diagram for explaining the operation of the self-destructing syringe manufacturing device according to an embodiment of the present invention.
Figure 6 is a conceptual diagram for explaining the operation of an automatic destructive syringe manufacturing device according to an embodiment of the present invention.

Since the present invention can be modified in various ways and can have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all transformations, equivalents, and substitutes included in the spirit and technical scope of the present invention. In describing the present invention, if it is determined that a detailed description of related known technologies may obscure the gist of the present invention, the detailed description will be omitted.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Terms such as first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the description with reference to the accompanying drawings, identical or corresponding components will be assigned the same reference numbers regardless of the reference numerals, and duplicates thereof will be provided. Any necessary explanation will be omitted.

Figure 1 is a diagram schematically showing part of the structure of an auto-destructive syringe (1) manufactured by an auto-destructive syringe manufacturing apparatus (1000) according to an embodiment of the present invention.

The syringe 1 may include a plunger 10, a gasket 20, and a barrel 30, and is generally used with a needle coupled to the end of the barrel 30 via a hub. The gasket 20 may be formed of a soft material capable of elastic deformation, and when the gasket 20 is pressed upward from the lower part of the plunger 10, the gasket 20 is pressed against the distal end 16 of the plunger 10. It can be combined in a wrapping form. The plunger 10 combined with the gasket 20 constitutes a piston, and the piston is inserted into and coupled to the barrel 30. At this time, the gasket 20 is in close contact with the inner peripheral surface of the barrel 30 and forms a piston inside the barrel 30. can be sealed. The piston may be coupled to the barrel 30 while the chemical solution is pre-filled.

Here, a fracture portion 15 is formed at a specific position of the stem 14 of the plunger 10. The destruction portion 15 may be formed of a very thin member or may be formed of a plurality of members as shown in FIG. 1 . The thickness of the fracture portion 15 sufficiently resists the compressive force applied when the head 12 of the plunger 10 is pressed and the plunger 10 moves inside the barrel 30, but the plunger 10 is intended to be reused. When drawn, it can be formed to a thickness that is destroyed by the applied tensile force. In FIG. 1, the destruction portion 15 is illustrated as being formed on the lower side of the plunger 10, but it may be formed in another position of the plunger 10. Of course, if the breaking part 15 is formed on the lower side of the plunger 10, it becomes difficult to remove the gasket 20 under the breaking part 15 from the barrel 30, so it may be more advantageous for the purpose of preventing reuse.

The breaking portion 15 of the plunger 10 is configured to be vulnerable to tensile force. If even a slight horizontal force is applied when coupling the gasket 20 to the distal end 16 of the plunger 10, the breaking portion ( Since tensile force may be generated at the position of 15), the automatic destruction syringe manufacturing device 1000 should ensure that little horizontal force is applied to the destruction portion 15 during the process of coupling the gasket 20 to the plunger 10. do.

FIG. 2 is a perspective view illustrating a part of the auto-destructive syringe manufacturing device 1000 according to an embodiment of the present invention, and FIG. 3 is a plan view showing the auto-destructive syringe manufacturing device 1000 shown in FIG. 2. Specifically, FIG. 2 illustrates the part where the gasket 20 is coupled to each of the plurality of plungers 10 in the auto-destructive syringe manufacturing apparatus 1000. Meanwhile, Figure 4 is an enlarged view showing the stage 200 and the rotation index 300 of the automatic destructive syringe manufacturing device 1000 according to an embodiment of the present invention.

Referring to Figures 2 to 4, the self-destructing syringe manufacturing apparatus 1000 according to an embodiment of the present invention includes a main body frame 100, a rotating shaft 110, a gasket supply unit, a plunger supply unit, a rotating frame 150, It may include a pressurizing unit, a stage 200, a rotation index 300, and a height adjusting unit.

The main body frame 100 may be configured to form a main frame and support other parts of the auto-destructive syringe manufacturing device 1000. Among the parts of the auto-destructive syringe manufacturing device 1000, the non-rotating parts can be viewed as fixed to the main body frame 100, and the rotating parts can be seen as rotatably coupled to the main body frame 100. Many parts of the main body frame 100 are omitted in FIG. 2 so that the main components are expressed more clearly.

The rotation shaft 110 can be rotated by a separate driving unit (not shown), and the rotating parts of the auto-destructive syringe manufacturing device 1000 include the rotation frame 150, the stage 200, and the rotation index 300. Rotating force can be applied to fields. As will be described later, the rotation shaft 110 may be provided with a gear 140, which may be meshed with the gear 142 of the rotation shaft 144 that rotates the supply index 134.

The auto-destruct syringe manufacturing apparatus 1000 may include a gasket supply unit that supplies the gasket 20. Figure 2 shows an example where the gasket supply unit includes the gasket feeder 120. When the pre-manufactured gasket 20 is provided to the gasket feeder 120, the gasket feeder 120 can sequentially supply the gasket 20 to the stage 200, and includes one or more air nozzles 122 for this purpose. can do. The air nozzle 122 can supply the gasket 20 toward the stage 200 by blowing air at high pressure.

The auto-destruct syringe manufacturing device 1000 may also include a plunger supply unit that supplies the plunger 10. Figure 2 shows an example where the plunger supply unit includes a plunger feeder 130 and a supply index 134. When a pre-manufactured plunger 10 is provided to the plunger feeder 130, the plunger feeder 130 supplies the plungers 10 in order, but supplies the plunger 10 first using one or more air nozzles 132. It can be mounted on the index 134, and then the supply index 134 can supply the plunger 10 to the rotation index 300 with the plunger 10 aligned in the vertical direction.

The supply index 134 has a disk shape and grooves may be formed at equal intervals on the outer circumferential surface. While the supply index 134 is rotated by the rotation shaft 144, the plunger 10 supplied from the plunger feeder 130 may be inserted into the groove of the supply index 134. At this time, the stem 14 of the plunger 10 is inserted into the groove of the supply index 134, and the head 12 of the plunger 10 is hung on the upper surface of the supply index 134 so that the plunger 10 moves up and down. It can be arranged in an upright position.

The gear 142 formed on the rotation shaft 144 that rotates the supply index 134 may be meshed with the gear 140 formed on the rotation shaft 110 that rotates the rotation index 300. The groove formed in the supply index 134 corresponding to the gear ratio of the two gears 140 and 142 may be formed in a position corresponding to the loading groove 315 of the rotation index 300, and thus the supply index 134 and rotation At the point where the indexes 300 meet, the plunger 10 may be supplied from the supply index 134 to the rotation index 300.

The rotation frame 150 may serve to support the stage 200 while being rotated by the rotation shaft 110. The rotation frame 150 can rotate at the same speed as the stage 200 and the rotation index 300, and can support the support shaft 250 supporting the stage 200 so that it can move in the up and down directions.

The pressurizing portion of the self-destructing syringe manufacturing device 1000 may be coupled to the main body frame 100, and pressurizes the upper part of the plunger 10 when the plunger 10 and the gasket 20 pass under it in alignment. It can be configured to do so. That is, as will be described later, in the auto-destructive syringe manufacturing apparatus 1000 according to an embodiment of the present invention, the height adjustment portion is located at a specific position while the plunger 10 and the gasket 20 are rotated in an aligned state. ), the gasket 20 is pressed upward, and at this time, the pressurizing portion supports the upper part of the plunger 10, so that the plunger 10 is not lifted by the upward pressing force, and the gasket 20 is pressed against the plunger 10. It may serve to bind to the distal end (16).

According to one embodiment of the present invention, the pressing unit may include a fixing plate 160. The fixing plate 160 may be fixed to the main body frame 100 and may be formed to maintain a slight distance between the lower surface of the fixing plate 160 and the upper surface of the rotation index 300. For example, this distance may be set to correspond to the length at which the top of the plunger 10, that is, the head 12 of the plunger 10, protrudes above the upper surface of the rotation index 300.

The fixing plate 160 may be formed over a range that at least partially overlaps the range of the position where the height adjuster, which will be described later, moves the stage 200 upward. When the plunger 10 inserted into the loading grooves 315 and 325 of the rotation index 300 passes under the fixing plate 160, the head 12 of the plunger 10 is supported by the fixing plate 160. As the stage 200 moves upward, the gasket 20 disposed in the insertion groove 225 of the stage 200 may be coupled to the distal end 16 of the plunger 10. The lower surface of the fixing plate 160 may be formed of a material and surface roughness that does not generate excessive frictional force due to contact with the head 12 of the plunger 10.

According to one embodiment of the present invention, the pressing unit may include a pressing roller 170. The pressure roller 170 may rotate around a rotation axis orthogonal to the rotation axis of the rotation shaft 110 that rotates the rotation index 300, and the rotation axis of the pressure roller 170 may be fixed to the main body frame 100. You can. Depending on the material of the pressure roller 170, the lower part of the pressure roller 170 may be spaced a predetermined distance from the upper surface of the rotation index 300 or may be configured to contact the upper surface of the rotation index 300.

The pressure roller 170 may be formed to correspond to a specific position within a range of positions at which the height adjustment unit moves the stage 200 upward. When the plunger 10 inserted into the loading grooves 315 and 325 of the rotation index 300 passes under the pressure roller 170, the head 12 of the plunger 10 is supported by the pressure roller 170. As the stage 200 moves upward in this state, the gasket 20 disposed in the insertion groove 225 of the stage 200 may be coupled to the distal end 16 of the plunger 10.

Figure 2 shows an example in which both the fixing plate 160 and the pressing roller 170 are used as part of the pressing unit. The height adjustment unit described later at a position corresponding to both the fixing plate 160 and the pressure roller 170 can adjust the stage 200 to the maximum height.

A guide 180 may be formed on the main body frame 100. Although not shown, the rotation index 300 can be in contact with a transfer unit (not shown) that transfers the plunger 10 with the gasket 20 assembled to another device, and the guide 180 allows the gasket 20 to be moved. The combined plunger 10 may be separated from the rotation index 300 and supplied to the transfer unit (not shown).

The auto-destruct syringe manufacturing apparatus 1000 may include a plurality of stages 200. The stages 200 may be arranged along an annular shape and may be configured to rotate about the rotation shaft 110. As shown, each stage 200 may be formed so that its outer side has an arc shape.

Referring to FIG. 4, each stage 200 can be divided into an upper part 210 and a lower part 220. An insertion hole 215 may be formed in the upper part 210 of the stage 200, and the stage ( An insertion groove 225 may be formed in the lower part 220 of 200.

The insertion hole 215 may be open to the upper surface of the stage 200 and may be formed in a position aligned with the loading grooves 315 and 325 of the rotation index 300, which will be described later. The insertion hole 215 may be formed such that its inner diameter corresponds to the outer diameter of the plunger 10.

The insertion groove 225 communicates with the insertion hole 215 and may be open to the outer peripheral surface of the stage 200. Since the plurality of stages 200 are arranged along an annular shape and have an arc-shaped outer side, two adjacent stages 200 arranged at the same height are configured so that no gap is formed except for the insertion groove 225. It can be.

As described above, the gasket supply unit may supply the gasket 20 so that the gasket 20 is inserted into the insertion groove 225 of the stage 200. For example, the gasket feeder 120 can continuously pressurize the gasket 20 toward the stage 200 with the air nozzle 122 at a corresponding position, and the stage 200 rotates to form the insertion groove 225. When located at the end of the gasket feeder 120, the gasket 20 can be inserted into the insertion groove 225 formed on the outer peripheral surface of the stage 200. The insertion groove 225 may be formed in a size corresponding to the size of the gasket 20. Figure 4 depicts a gasket 20 inserted into one insertion groove 225 to aid understanding.

The insertion hole 215 formed in the upper part 210 of the stage 200 is not open to the outer peripheral surface of the stage 200, while the insertion groove 225 formed in the lower part 220 of the stage 200 is not open to the outer peripheral surface of the stage 200. ), the stage 200 may be configured so that the outer circumferential surface of the lower portion 220 is further inward than the outer peripheral surface of the upper portion 210 for convenience of manufacturing, as shown in FIG. 4 . That is, the radius of curvature of the circular arc of the upper part 210 of the stage 200 may be larger than the radius of curvature of the circular arc of the lower part 220 of the stage 200.

Referring to FIG. 2, a support shaft 250 may extend downward from the lower part of the stage 200. For example, the support shaft 250 may be inserted through a through hole 155 formed in the rotating frame 150 and may be configured to move in the vertical direction with respect to the rotating frame 150. FIG. 2 shows an example in which two support shafts 250 are coupled to one stage 200, but the number and shape of the support shafts 250 may vary depending on the embodiment. The support shaft 250 will be described in more detail later in relation to the height adjustment unit.

The rotation index 300 is formed in a disk shape and can be rotated by the rotation shaft 110, and can be rotated at the same speed as the rotation frame 150 and the stage 200. A loading groove 315 may be formed on the outer peripheral surface of the rotation index 300, and the plunger 10 supplied by the plunger supply unit may be inserted into the loading groove 315.

According to one embodiment of the present invention, the rotation index 300 may include an upper index 310 and a lower index 320. Each of the upper index 310 and lower index 320 may be formed in a disk shape, and loading grooves 315 and 325 may be formed on the outer peripheral surface. The loading groove 315 formed in the upper index 310 may be aligned with the loading groove 325 formed in the lower index 320 in the vertical direction. The plunger 10 supplied from the plunger supply unit can be inserted into the loading grooves 315 and 325 of the rotary index 300, and the upper part of the stem 14 of the plunger 10 is in the loading groove (315) of the upper index 310. 315), the middle part of the stem 14 can be inserted into the loading groove 325 of the lower index 320, and the head 12 of the plunger 10 is inserted into the upper surface of the upper index 310. You can wear it.

In this way, the upper index 310 and the lower index 320 support the plunger 10 at a plurality of positions, so that the plunger 10 can stably maintain the same posture without shaking. Of course, in some embodiments of the present invention, the rotation index 300 may be formed without distinction between the upper index 310 and the lower index 320, and may be formed in addition to the upper index 310 and the lower index 320. It may also include a disk-shaped index. The thickness of each disc-shaped index may vary depending on the embodiment.

The height adjustment unit may be disposed below the support shaft 250 to adjust the height of each of the plurality of stages 200. 2 and 3 show an example where the height adjustment unit includes a cam 400.

The cam 400 is located below the rotating frame 150, but may be fixed to, for example, the main body frame 100 so as not to rotate. The cam 400 may have an annular shape and is formed along a trajectory corresponding to the stage 200 and the support shaft 250 coupled thereto. The upper surface of the cam 400 may have different heights depending on the position.

The support shaft 250 coupled to the lower part of each stage 200 may be coupled to the rotating frame 150 to be movable in the vertical direction, and the caster 270 may be rotatably coupled to the lower part thereof. For example, the lower ends of the plurality of support shafts 250 coupled to one stage 200 are coupled to one support base 260, and the caster 270 is rotatable at the lower part of the support base 260. can be combined Of course, in some embodiments, the caster 270 may be coupled to each support shaft 250 without the support base 260. In this way, the caster 270 coupled to the lower part of the support shaft 250 moves along the upper surface of the cam 400 and can rise and fall depending on the height of the cam 400. Since each stage 200 is coupled to the caster 270 by the support shaft 250, when the caster 270 moves in the vertical direction along the upper surface of the cam 400, the stage 200 can also move in the vertical direction. there is.

Of course, the height adjustment unit can be implemented using a configuration other than the cam 400. For example, the height adjustment unit may be mounted on the rotating frame 150 and implemented using one or more of various pneumatic methods, hydraulic methods, and mechanical structures to raise and lower the support shaft 250.

Hereinafter, the operation of the self-destructing syringe manufacturing device 1000 according to an embodiment of the present invention will be described in more detail with reference to FIGS. 5 and 6. Figures 5 and 6 are conceptual diagrams for explaining the operation of the automatic destructive syringe manufacturing device 1000 according to an embodiment of the present invention, focusing on the stage 200, rotation index 300, and cam 400. An auto-destructive syringe manufacturing device 1000 is depicted, and in particular, only one stage 200 among a plurality of stages 200 is depicted to facilitate understanding.

As shown in FIG. 5, the height of the upper surface of the cam 400 may vary depending on the position. In the example shown in Figure 5, the cam 400 has different heights at the first point 401, the second point 402, and the third point 403.

The first point 401 may correspond, for example, to a position where the plunger 10 and the gasket 20 are supplied. When the caster 270 is at the first point 401, the stage 200 will be positioned higher than depicted in Figure 5. In the section where the gasket 20 is inserted into the insertion groove 225 of the stage 200 and then the plunger 10 is inserted into the loading grooves 315 and 325 of the rotation index 300, the caster 270 is at the first point. It is possible to maintain the same height as 401, and at this time, the insertion groove 225 of the stage 200 is at a height corresponding to the end of the gasket feeder 120.

Meanwhile, when the plunger 10 is supplied to the rotation index 300 while the caster 270 is at the height of the first point 401, a part of the plunger 10 is inserted into the insertion hole 215 of the stage 200. Can be inserted inside. For example, when the breaking portion 15 of the plunger 10 is located below the stem 14 of the plunger 10, the plunger 10 is supplied to the rotation index 300 and the head 12 rotates. The lower end of the plunger 10 may be inserted into the insertion hole 215 opened on the upper surface of the stage 200 by falling slightly until it is caught on the upper surface of the index 300.

The second point 402 may correspond, for example, to a position where the plunger 10 and the gasket 20 are coupled. Figure 6 depicts the caster 270 at the height of the second point 402. The height of the second point 402 may be slightly greater than the height of the first point 401, and it is sufficient that the height corresponds to the distance that must be moved to couple the gasket 20 to the plunger 10. The height difference between point 401 and second point 402 may not be significant enough to be easily discerned with the naked eye.

When the caster 270 is located at a portion that increases from the height of the first point 401 to the height of the second point 402, a pressing portion may be located on the top of the plunger 10. 5 and 6, the fixing plate 160 is depicted as an example of a pressing portion. When the caster 270 rises to the height of the second point 402 and the stage 200 rises together, the upper part (i.e., head 12) of the plunger 10 is supported by the fixing plate 160. Therefore, the upward force of the stage 200 can move the gasket 20 upward and couple it to the distal end 16 of the plunger 10.

In particular, when the caster 270 is at the height of the second point 402 and the gasket 20 is pressed against the distal end 16 of the plunger 10, the upper portion of the breaking portion 15 of the plunger 10 and At least a portion of the lower portion of the destruction portion 15 may be located within the insertion hole 215 .

As described above, the inner diameter of the insertion hole 215 of the upper part 210 of the stage 200 may be formed to a size corresponding to the outer diameter of the plunger 10, and as a result, the upper part of the breaking portion 15 of the plunger 10 The portion and the lower portion of the destruction portion 15 may be supported in the horizontal direction by the inner peripheral surface of the insertion hole 215. Since the inner peripheral surface of the insertion hole 215 supports and fixes the upper part of the breaking part 15 and the lower part of the breaking part 15, even if an unintended horizontal force is applied, the breaking part of the plunger 10 ( 15) will not be affected.

Referring again to FIG. 5 , after the gasket 20 is properly coupled to the plunger 10, the caster 270 may move to the third point 403 of the cam 400. The third point 403 may have a height that is significantly lower than the first and second points 401 and 402. When the caster 270 descends to the third point 403, the stage 200 descends together so that the plunger 10 and the gasket 20 coupled thereto can be extracted from the insertion hole 215 of the stage 200. . The plunger 10 and gasket 20 separated from the stage 200 in this way can be removed from the rotation index 300 by the guide 180 and transferred for a subsequent process.

Although omitted in FIGS. 2 and 3 , in some embodiments, the support shaft 250 may be provided with an elastic member 280 . To be more specific, an elastic member 280 may be disposed on the outer peripheral surface of the support shaft 250 between the rotating frame 150 and the caster 270, and the caster 270 and the stage 200 may be relatively large. When at a height, the elastic member 280 can be compressed as shown in FIG. 6, and when the caster 270 and the stage 200 are at a relatively low height, the elastic member 280 applies a restoring force as shown in FIG. 5. They can be decompressed together.

If the stage 200 and caster 270 do not descend where they should due to wear of parts due to long-term use, entry of foreign substances, etc., the plunger 10 will not be able to completely escape from the stage 200, resulting in damage to the product. Although this may cause a disruption in the manufacturing process, the elastic member 280 mounted on the support shaft 250 can apply an elastic restoring force to ensure that the stage 200 and the caster 270 descend in areas where they can descend. In other words, the elastic member 280 can prevent problems that may occur if the stage 200 does not descend properly. If the support shaft 250 is provided with other means to maintain a sufficiently small frictional force with respect to the rotating frame 150, the elastic member 280 may be omitted, and in this case, the stage 200 and caster 270 are used by themselves. Can descend due to load.

In some embodiments, the plunger 10 and the gasket 20 may be supplied when the caster 270 is in a section at the same height as the third point 403 of the cam 400. For example, when the caster 270 is at the same height as the third point 403 of the cam 400, the gasket 20 is supplied to the insertion groove 225 of the stage 200, and then the rotation index 300 After the plunger 10 is supplied to the loading grooves 315 and 325 or at the same time, the caster 270 moves to the first point 401 of the cam 400 and the lower end of the plunger 10 moves to the stage ( It can be inserted into the insertion hole 215 of 200). In this case, the plunger 10 may not be configured to drop slightly when supplied to the rotation index 300.

As such, the auto-destructive syringe manufacturing device 1000 according to an embodiment of the present invention, unlike the existing device for manufacturing general syringes, prevents a horizontal force from being applied to the breaking portion 15 of the plunger 10. It includes several elements for effective prevention.

First, in the automatic destructive syringe manufacturing apparatus 1000 according to an embodiment of the present invention, the support shaft 250 supporting the stage 200 is movably coupled to the rotating frame 150 rotating at the same speed, so that the gasket The force pressing (20) upward is configured to act entirely in the vertical direction.

In addition, at the moment when force is applied to press the gasket 20, the caster 270 moves from the first point 401 to the second point 402 and experiences only a very slight increase in height, so the error causes an error in the horizontal direction. The possibility of force being applied is very low.

Above all, in the plunger 10, both the upper part of the breaking part 15 and the lower part of the breaking part 15 are located inside the insertion hole 215 of the stage 200, so that the inner peripheral surface of the insertion hole 215 is broken. Since the upper part of the part 15 and the lower part of the destruction part 15 are supported in the horizontal direction, even if an unintended horizontal force is applied due to an error, the upper part 210 of the stage 200 supports it and the plunger The destruction portion 15 of (10) is prevented from being destroyed.

Although the present invention has been described above with reference to an embodiment of the present invention, those skilled in the art will understand the present invention in various ways without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that it can be modified and changed.

1: Syringe
10: Plunger 20: Gasket
100: main body frame 150: rotation frame
160: Fixed plate 170: Pressure roller
200: Stage 215: Insertion hole
225: Insertion groove 250: Support shaft
270: Caster 280: Elastic member
300: rotation index 315, 335: loading home
400: Cam 1000: Auto-destructive syringe manufacturing device

Claims (11)

An apparatus for manufacturing a syringe including a plunger having a breakable portion vulnerable to tensile force formed at a predetermined position and a gasket coupled to the distal end of the plunger,
An insertion hole that opens to the upper surface is formed at the upper part, and an insertion groove that communicates with the insertion hole and opens to the outer peripheral surface is formed at the lower part, a plurality of stages arranged along an annular shape and configured to rotate about a rotating shaft;
a rotation index formed in a disk shape and having a loading groove formed on the outer circumferential surface, and configured to rotate at the same speed as the plurality of stages;
A rotation frame configured to rotate at the same speed as the plurality of stages and the rotation index, and supporting the support shaft extending downward from each of the plurality of stages so that the support shaft can move in the vertical direction; and
An auto-destructive syringe manufacturing device comprising a height adjuster disposed below the support shaft and configured to adjust the height of the stage.
According to claim 1,
An automatic destructive syringe manufacturing device, wherein the insertion hole has an inner diameter corresponding to the outer diameter of the plunger.
According to claim 1,
The gasket is supplied to the plurality of stages and the gasket is inserted into the insertion groove, and the plunger is supplied to the rotation index so that the plunger is inserted into the loading groove,
The height adjuster moves the stage upward so that the gasket disposed in the insertion groove is coupled to the plunger disposed in the loading groove, and when the stage moves upward, one of the plungers disposed in the loading groove is destroyed. An automatic destructive syringe manufacturing device, characterized in that both the upper portion of the section and the lower portion of the destruction section are located within the insertion hole of the upwardly moved stage.
According to claim 3,
When the plunger is supplied to the rotation index, a part of the plunger is inserted into the insertion hole.
According to claim 1,
A pressing unit fixed to a main body frame that does not rotate, provided on the upper surface of the rotation index at a position corresponding to the position at which the height adjustment unit moves the stage upward, and configured to press the upper part of the plunger supplied to the rotation index. A self-destructing syringe manufacturing device comprising:
According to claim 5,
The pressing unit includes a fixed plate spaced a predetermined distance from the upper surface of the rotation index,
The distance between the upper surface of the rotation index and the fixing plate is set to correspond to the length at which the upper end of the plunger protrudes above the upper surface of the rotation index.
According to claim 5,
The pressurizing unit is a pressurizing roller that rotates along a rotational axis orthogonal to the rotational axis of the rotational shaft while being spaced a predetermined distance from the upper surface of the rotational index or in contact with the upper surface of the rotational index. Syringe manufacturing device.
According to claim 1,
The rotation index includes an upper index and a lower index with the loading grooves formed at corresponding positions, and when the plunger is supplied to the rotation index, the plunger is inserted into the loading grooves of each of the upper index and the lower index. A self-destructing syringe manufacturing device characterized by:
According to claim 1,
The height adjusting unit has an annular shape, the upper surface of which has a different height depending on the position, and includes a cam fixed to the main body frame that does not rotate below the rotating frame,
As the caster rotatably coupled to the lower part of the support shaft moves along the upper surface of the cam and the caster rises and falls according to the height of the cam, the height of the stage coupled to the caster by the support shaft increases. A self-destructing syringe manufacturing device characterized in that it is controlled.
According to clause 9,
The self-destructing syringe manufacturing device further comprises an elastic member disposed on the outer peripheral surface of the support shaft between the rotating frame and the caster.
According to claim 1,
a gasket supply unit configured to supply the gasket to each of the insertion grooves; and
An automatic destructive syringe manufacturing device further comprising a plunger supply unit configured to supply the plunger to each of the loading grooves.