A film coating device for pre-filled syringe stoppers

Abstract

The utility model relates to syringe rubber plug film coating technical field discloses a kind of film coating devices of pre-filled syringe rubber plug, including bottom plate, the top of the bottom plate is fixedly connected with support column, the top of the support column is fixedly connected with top plate, the top of the top plate is fixedly connected with hydraulic ram. The utility model moves down by the output end of hydraulic ram to push shunt disc, make spraying pipe move down into the inside of groove, while spraying pipe covers at the outside of rubber plug, then start liquid pump, and liquid pump extracts emulsion inside storage tank by liquid suction pipe, and by conveying pipe, it is sent to the inside of shunt disc, and emulsion is sent to the inside of spraying pipe by shunt disc, and emulsion is sprayed by the several through holes of the spraying pipe inner wall, and different positions are sprayed to rubber plug, to realize the surface of rubber plug to be coated, improve spraying efficiency, and multiple rubber plugs can be coated once, to further improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of syringe stopper coating technology, and in particular to a coating device for pre-filled syringe stoppers. Background Technology

[0002] Pre-filled syringe stoppers are typically made of halogenated butyl rubber and come in both liner and non-liner versions. This material offers excellent elasticity and sealing properties, allowing it to fit tightly against the syringe barrel wall, effectively preventing drug leakage and the intrusion of external air and microorganisms.

[0003] Traditional coating devices often result in uneven coating when spraying rubber stoppers, as the stoppers have protruding and recessed structures on the outside, which affects the coating quality. Therefore, we propose a coating device for pre-filled syringe stoppers. Summary of the Invention

[0004] The problem to be solved by this utility model is to provide a coating device for pre-filled syringe stoppers, which addresses the shortcomings of the prior art.

[0005] To solve the above problems, the present invention adopts the following solution: a coating device for pre-filled syringe stoppers, comprising a base plate, a support column fixedly connected to the top of the base plate, a top plate fixedly connected to the top of the support column, a hydraulic rod fixedly connected to the top of the top plate, a limit rod slidably connected to the inner wall of the top plate, a spraying assembly provided at the lower end of the hydraulic rod, a liquid storage tank fixedly connected to the top of the base plate, and a placement assembly provided at the top of the liquid storage tank.

[0006] The spraying assembly includes a liquid pump, a liquid pumping pipe connected to the rear end of the liquid pump, a delivery pipe connected to the front end of the liquid pump, a distribution plate connected to the end of the delivery pipe away from the liquid pump, a spraying pipe connected to the bottom of the distribution plate, and a plurality of through holes formed on the inner wall of the spraying pipe.

[0007] The above technical solution involves starting a liquid pump, which draws emulsion from the storage tank through a liquid pumping pipe and transports it to the distribution plate through a delivery pipe. The distribution plate then transports the emulsion to the spraying pipe, where it is sprayed out through several through-holes in the inner wall of the spraying pipe. This spraying process coats different areas of the rubber stopper, thereby achieving a film coating on the surface of the rubber stopper. This improves spraying efficiency and allows for the coating of multiple rubber stoppers at once, thus increasing production efficiency.

[0008] As a further improvement to the above solution, the bottom of the pump is fixedly connected to the top of the base plate, and the end of the pumping tube away from the pump extends into the interior of the storage tank.

[0009] The above technical solution allows for the storage of the emulsion in a liquid tank, facilitating its subsequent spraying.

[0010] As a further improvement to the above solution, the top of the diverter plate is fixedly connected to the bottom of the hydraulic rod, and the top of the diverter plate is fixedly connected to the bottom of the limiting rod.

[0011] With the above technical solution, when the distributor plate moves downward, the limiting rod slides along the inner wall of the top plate to limit the distributor plate and prevent it from deviating during the movement of the distributor plate, so that the spray tube can accurately cover the outside of the rubber stopper.

[0012] As a further improvement to the above solution, two limiting rods are provided, and the two limiting rods are symmetrically distributed with the top plate as the center.

[0013] The above technical solution improves the limiting effect on the diverter plate by using two limiting rods.

[0014] As a further improvement to the above solution, the placement assembly includes a placement plate, the top of which has a groove and the bottom of which has a return hole. A fixing rod is fixedly connected to the top of the inner wall of the groove, and a limit block is fixedly connected to the top of the fixing rod.

[0015] The above technical solution restricts the position of the rubber stopper by using a limiting block, which facilitates quick placement of the rubber stopper. The limiting block also lifts the rubber stopper, creating a certain distance between the rubber stopper and the return hole, thus avoiding any impact on the recovery of the emulsion.

[0016] As a further improvement to the above solution, the bottom of the placement plate is fixedly connected to the top of the liquid storage tank, and a rubber stopper is provided inside the groove.

[0017] With the above technical solution, the placement plate is connected to the storage tank through the return hole at the bottom. The sprayed emulsion flows into the interior of the storage tank through the return hole to recycle the emulsion, which is convenient for recycling and reduces the waste of emulsion.

[0018] As a further improvement to the above solution, the limiting block is located inside the rubber stopper.

[0019] The technical effects of this utility model are as follows: By setting up a hydraulic rod and a spraying assembly, specifically, the output end of the hydraulic rod pushes the distribution plate downward, causing the spraying pipe to move downward into the interior of the groove. At the same time, the spraying pipe covers the outside of the rubber stopper. Then, the liquid pump is started, and the liquid pump draws the emulsion from the storage tank through the liquid pumping pipe and transports it to the interior of the distribution plate through the delivery pipe. The distribution plate then transports the emulsion to the interior of the spraying pipe, and the emulsion is sprayed out through several through holes opened in the inner wall of the spraying pipe, spraying different positions of the rubber stopper, thereby achieving a coating on the surface of the rubber stopper, improving spraying efficiency, and multiple rubber stoppers can be coated at one time, thus improving production efficiency.

[0020] This invention features a placement component, specifically a limiting block that restricts the position of the rubber stopper, facilitating quick placement. The limiting block also lifts the rubber stopper, creating a distance between it and the return hole. The sprayed emulsion flows into the storage tank through the return hole, allowing for emulsion recycling and reducing waste. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic cross-sectional view of the present invention.

[0023] Figure 3 This utility model Figure 2 Enlarged structural diagram of section A in the middle;

[0024] Figure 4 This is a schematic diagram of the spraying assembly structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the exploded structure of the placement component of this utility model;

[0026] Figure 6 This is a schematic diagram of the spray pipe structure of this utility model.

[0027] The components include: 1. Base plate; 2. Support column; 3. Top plate; 4. Hydraulic rod; 5. Limiting rod; 6. Spraying assembly; 601. Liquid pump; 602. Liquid suction pipe; 603. Delivery pipe; 604. Diverter plate; 605. Spraying pipe; 606. Through hole; 7. Liquid storage tank; 8. Placement assembly; 801. Placement plate; 802. Groove; 803. Liquid return hole; 804. Fixing rod; 805. Limiting block; 9. Rubber stopper. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings. Example

[0029] like Figures 1-6 As shown, a coating device for pre-filled syringe stoppers in this embodiment includes a base plate 1, a support column 2 fixedly connected to the top of the base plate 1, a top plate 3 fixedly connected to the top of the support column 2, a hydraulic rod 4 fixedly connected to the top of the top plate 3, a limit rod 5 slidably connected to the inner wall of the top plate 3, a spraying component 6 provided at the lower end of the hydraulic rod 4, a liquid storage tank 7 fixedly connected to the top of the base plate 1, and a placement component 8 provided at the top of the liquid storage tank 7.

[0030] The spraying assembly 6 includes a liquid pump 601, with a liquid pump pipe 602 connected to its rear end and a delivery pipe 603 connected to its front end. The end of the delivery pipe 603 furthest from the liquid pump 601 is connected to a distribution plate 604, and a spraying pipe 605 is connected to the bottom of the distribution plate 604. The inner wall of the spraying pipe 605 has several through holes 606. When the hydraulic rod 4 is activated, its output end pushes the distribution plate 604 downwards, causing the spraying pipe 605 to move downwards into the interior of the groove 802, while simultaneously covering... On the outside of the rubber stopper 9, the liquid pump 601 is then started. The liquid pump 601 draws the emulsion from the inside of the liquid storage tank 7 through the liquid pumping pipe 602 and delivers it to the inside of the distribution plate 604 through the delivery pipe 603. The distribution plate 604 delivers the emulsion to the inside of the spraying pipe 605. The emulsion is sprayed out through several through holes 606 opened in the inner wall of the spraying pipe 605 to spray different positions of the rubber stopper 9, thereby achieving a coating on the surface of the rubber stopper 9, improving the spraying efficiency, and multiple rubber stoppers 9 can be coated at one time, thereby improving production efficiency.

[0031] The bottom of the pump 601 is fixedly connected to the top of the base plate 1, and the end of the pump 602 away from the pump 601 extends into the interior of the storage tank 7.

[0032] The top of the diverter plate 604 is fixedly connected to the bottom of the hydraulic rod 4, and the top of the diverter plate 604 is fixedly connected to the bottom of the limit rod 5.

[0033] There are two limit rods 5, which are symmetrically distributed with the top plate 3 as the center.

[0034] The placement assembly 8 includes a placement plate 801, with a groove 802 on the top and a return hole 803 on the bottom. A fixing rod 804 is fixedly connected to the top of the inner wall of the groove 802, and a limit block 805 is fixedly connected to the top of the fixing rod 804. The sprayed emulsion flows into the interior of the storage tank 7 through the return hole 803 to recover the emulsion, making it easy to reuse and reducing emulsion waste.

[0035] The bottom of the placement plate 801 is fixedly connected to the top of the liquid storage tank 7, and a rubber stopper 9 is provided inside the groove 802.

[0036] The limiting block 805 is located inside the rubber stopper 9. The limiting block 805 restricts the position of the rubber stopper 9, making it easy to quickly place the rubber stopper 9. The limiting block 805 lifts the rubber stopper 9, so that there is a certain distance between the rubber stopper 9 and the return hole 803, allowing the emulsion to flow into the interior of the storage tank 7 through the return hole 803.

[0037] The implementation principle of the coating device for a pre-filled syringe stopper in this embodiment is as follows: During use, the emulsion to be sprayed is stored in the storage tank 7. During spraying, the stopper 9 is placed outside the limiting block 805. The limiting block 805 restricts the position of the stopper 9 and lifts it up, facilitating quick placement and ensuring a certain distance between the stopper 9 and the return hole 803. After the stopper 9 is placed, the hydraulic rod 4 is activated. The output end of the hydraulic rod 4 pushes the diverter plate 604 downwards, causing the spraying tube 605 to move downwards into the groove 802. Simultaneously, the spraying tube 605 covers the outside of the stopper 9. The pump 601 is started, and the pump 601 draws the emulsion from the storage tank 7 through the pumping pipe 602 and delivers it to the distribution plate 604 through the delivery pipe 603. The distribution plate 604 delivers the emulsion to the spraying pipe 605, and the emulsion is sprayed out through several through holes 606 on the inner wall of the spraying pipe 605 to spray different positions of the rubber stopper 9, thereby achieving a coating on the surface of the rubber stopper 9, improving the spraying efficiency, and multiple rubber stoppers 9 can be coated at one time, thus improving production efficiency. After spraying, the emulsion flows into the storage tank 7 through the return hole 803 for emulsion recycling, which facilitates recycling and reduces emulsion waste.

[0038] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A coating device for pre-filled syringe stoppers, characterized in that, Includes a base plate (1), a support column (2) is fixedly connected to the top of the base plate (1), a top plate (3) is fixedly connected to the top of the support column (2), a hydraulic rod (4) is fixedly connected to the top of the top plate (3), a limit rod (5) is slidably connected to the inner wall of the top plate (3), a spraying assembly (6) is provided at the lower end of the hydraulic rod (4), a liquid storage tank (7) is fixedly connected to the top of the base plate (1), and a placement assembly (8) is provided on the top of the liquid storage tank (7). The spraying assembly (6) includes a liquid pump (601), the rear end of which is connected to a liquid pump pipe (602), the front end of which is connected to a delivery pipe (603), the end of the delivery pipe (603) away from the liquid pump (601) is connected to a distribution plate (604), the bottom of the distribution plate (604) is connected to a spraying pipe (605), and the inner wall of the spraying pipe (605) is provided with a plurality of through holes (606).

2. The coating device for a pre-filled syringe stopper as described in claim 1, characterized in that: The bottom of the pump (601) is fixedly connected to the top of the base plate (1), and the end of the pump (602) away from the pump (601) extends into the interior of the storage tank (7).

3. The coating device for a pre-filled syringe stopper as described in claim 1, characterized in that: The top of the diverter plate (604) is fixedly connected to the bottom of the hydraulic rod (4), and the top of the diverter plate (604) is fixedly connected to the bottom of the limiting rod (5).

4. The coating device for a pre-filled syringe stopper as described in claim 3, characterized in that: There are two limiting rods (5), and the two limiting rods (5) are symmetrically distributed with the top plate (3) as the center.

5. The coating device for a pre-filled syringe stopper as described in claim 1, characterized in that: The placement assembly (8) includes a placement plate (801), a groove (802) is provided on the top of the placement plate (801), a return hole (803) is provided on the bottom of the placement plate (801), a fixing rod (804) is fixedly connected to the top of the inner wall of the groove (802), and a limit block (805) is fixedly connected to the top of the fixing rod (804).

6. The coating device for a pre-filled syringe stopper as described in claim 5, characterized in that: The bottom of the placement plate (801) is fixedly connected to the top of the liquid storage tank (7), and a rubber stopper (9) is provided inside the groove (802).

7. The coating device for a pre-filled syringe stopper as described in claim 5, characterized in that: The limiting block (805) is located inside the rubber stopper (9).

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