Nitrogen charging device for granule packaging machine

Abstract

The utility model discloses a nitrogen filling device for a granule packaging machine, which comprises a blanking pipe for blanking granules, the upper end of the blanking pipe is fixedly connected with a blanking port communicated with the inside of the blanking pipe, the upper end of the blanking pipe is fixedly connected with a pipe fitting on the rear side of the blanking port, a nitrogen filling joint is inserted into the upper end of the pipe fitting, and the nitrogen filling joint is connected with the blanking port. The nitrogen charging connector comprises a connector base and a nitrogen charging pipe which are fixedly connected, the lower end of the nitrogen charging pipe extends to a lower port of the discharging pipe, and the upper end of the nitrogen charging pipe penetrates through the connector base and is led out. Air in small bags (square bags, strip bags and the like) can be replaced out through nitrogen charging in the packaging process, and granule products without oxygen or with low residual oxygen can be obtained, so that oxidation and degradation of substances easy to oxidize and degrade in the packaging and storing process can be effectively controlled, and the quality requirements of the products are met.

Description

Technical Field

[0001] This utility model relates to the field of granule packaging technology, specifically a nitrogen filling device for granule packaging machines. Background Technology

[0002] Granules are a type of solid dispersion preparation, which is a uniform and stable suspension made by dissolving drugs in a suitable carrier. Its advantages include rapid dissolution, convenient administration, good taste, and suitability for special populations such as children and the elderly. It is widely used in the fields of pharmaceuticals, food, and health foods.

[0003] With the development of the pharmaceutical industry, more and more substances are being made into granules for sale. Currently, most granules are packaged using composite film packaging (square packs, strip packs, etc.), which requires granule packaging machines.

[0004] During the production process, iron, vitamins, and other substances are often added to granules. However, these substances are easily oxidized and degraded when exposed to oxygen. During the packaging process, because the air inside the small bags (square bags, strip bags, etc.) cannot be completely expelled, a large amount of air remains. Therefore, after the above-mentioned substances are made into finished products, they will be in contact with air for a long time during storage, which will lead to oxidation and degradation, causing the product quality to fail to meet the standard requirements and thus lose its intended function and efficacy. Utility Model Content

[0005] The purpose of this invention is to overcome the defects and deficiencies of the existing technology and provide a nitrogen filling device for granule packaging machines. During the packaging process, nitrogen can be used to replace the air in the small bags (square bags, strip bags, etc.), thereby obtaining granule products with no oxygen or low residual oxygen content. This helps to control the oxidation and degradation of easily oxidized and degraded substances during packaging and storage.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A nitrogen filling device for a granule packaging machine includes a feeding pipe for feeding granules, the upper end of which is fixedly connected to a feeding port communicating with its interior. The device is characterized in that: a fitting is fixedly connected to the upper end of the feeding pipe behind the feeding port; a nitrogen filling connector is inserted into the upper end of the fitting; the nitrogen filling connector includes a connector seat and a nitrogen filling pipe fixedly connected thereto; the lower end of the nitrogen filling pipe extends to the lower port of the feeding pipe; and the upper end of the nitrogen filling pipe passes through the connector seat and extends outwards.

[0008] Furthermore, the lead end of the nitrogen filling pipe is connected to a nitrogen filling hose, and the nitrogen filling hose is connected to an external nitrogen source.

[0009] Further, the nitrogen filling hose pipeline is connected with the nitrogen source, and then connected with a nitrogen pump, a nitrogen filter, a pressure regulating valve, an oil removal filter, a solenoid valve and a shunt in sequence, and then divided into several branches and connected with the outlet ends of the nitrogen filling pipes.

[0010] Further, the nitrogen flow meter is connected with the relay in the power supply circuit of the granule packaging machine through the control unit.

[0011] Further, the nitrogen flow meter is connected with the relay in the power supply circuit of the granule packaging machine through the control unit.

[0012] Further, the control unit is electrically connected with an alarm.

[0013] Further, the joint seat is provided with a through hole communicated with the inside of the discharging pipe, and an exhaust hose is inserted into the through hole and connected with an exhaust pump.

[0014] Compared with the prior art, the beneficial effects of the present application are:

[0015] The nitrogen filling device is installed on the discharging pipe of the granule packaging machine without changing the existing principle of sub-packaging, and the air in the small bags (square bags, strip bags, etc.) can be replaced by nitrogen during the packaging process, so that the granule product with no oxygen or low residual oxygen content can be obtained, and the oxidation and degradation of the easily oxidized and degraded substances during the packaging and storage process can be effectively controlled, thereby meeting the quality requirements of the product. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 The figure is a structural schematic diagram of the present application.

[0017] Fig. 2 The figure is a flow chart of the nitrogen filling in the present application.

[0018] Fig. 3 The figure is an electrical control principle block diagram in the present application. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0020] Referring to Figs. 1-3The utility model discloses a nitrogen filling device for granule packaging machine, including the granule's downcomer 1 of granule's downcomer, the upper end fixed connection of downcomer 1 is communicated with its inside downcomer mouth 2, the upper end fixed connection of downcomer 1 is at the rear side of downcomer mouth 2 pipe fitting 3, and the upper end of pipe fitting 3 inserts the nitrogen filling joint, and the nitrogen filling joint includes the fixed connection of joint seat 4 and nitrogen filling pipe 5, and the lower end of nitrogen filling pipe 5 extends to the lower mouth of downcomer 1, and the upper end of nitrogen filling pipe 5 penetrates joint seat 4 and leads out.

[0021] In the utility model, the leading end of nitrogen filling pipe 5 is connected with nitrogen filling hose circuit 6, and nitrogen filling hose circuit 6 is connected with nitrogen source 7, so as to supply nitrogen.

[0022] In the utility model, after nitrogen filling hose circuit 6 leads out from nitrogen source 7, nitrogen gas pump 8, nitrogen gas filter 9, pressure regulating valve 10, oil removal filter 11, electromagnetic valve 12 and shunt 13 are connected in turn, and then the circuit is divided into several branches, and the leading ends of the several nitrogen filling pipes 5 are connected respectively.

[0023] In the utility model, nitrogen flow meter 14 is connected in each branch, so as to measure the flow of nitrogen flowing through each branch.

[0024] In the utility model, nitrogen flow meter 14 is electrically connected with relay (normally closed relay) 16 in the power supply circuit of granule packaging machine through control unit (PLC) 15.

[0025] In the utility model, control unit 15 is electrically connected with alarm 17.

[0026] Therefore, nitrogen flow meter 14 in each branch sends the measured nitrogen flow data to control unit 15.

[0027] When the nitrogen flow in a branch or some branches is insufficient (insufficient gas supply), control unit 15 controls alarm 17 to output an alarm signal, and controls relay 16 to be disconnected, so that granule packaging machine is stopped, and the residual oxygen content is prevented from exceeding the standard due to insufficient nitrogen flow.

[0028] In the utility model, joint seat 4 is provided with a through hole communicated with the inside of the downcomer, and exhaust hose 18 is inserted in the through hole, and exhaust pump (not shown in the figure) is connected to exhaust hose 18.

[0029] Of course, electromagnetic valve (not shown in the figure) should also be connected to exhaust hose 18, so as to control the on-off of exhaust hose 18.

[0030] Thus, after one bag of granule packaging is completed, on one hand, the excess nitrogen is extracted and discharged, and on the other hand, the dust adhered to the wall of the downcomer 1 during the downflow process is extracted, which can prevent the downcomer 1 from being blocked during long-term use and can avoid the dust from mixing into the granule to affect the product quality.

[0031] The utility model will be further described below in combination with the drawings:

[0032] When the nitrogen is filled, the nitrogen pressure is adjusted by the pressure regulating valve 10, and the opening and closing of the nitrogen filling hose circuit 6 is controlled by the electromagnetic valve 12.

[0033] The nitrogen is pumped by the nitrogen pump 8, is preliminarily filtered (remove impurities) and secondarily filtered (remove oil mist) by the nitrogen filter 9 and the oil removal filter 11 in turn, and then enters each branch and then enters each nitrogen filling pipe 5 by the shunt 13.

[0034] Since the lower end of the nitrogen filling pipe 5 extends to the lower port of the downcomer 1, during the packaging process, the air in the small bag is replaced by the nitrogen filling, which can obtain the granule product with no oxygen or low residual oxygen content, so that the oxidation and degradation of the easily oxidized and degraded substances during the packaging and storage can be effectively controlled.

[0035] After one bag of granule packaging is completed, the air extraction pump is started to work, on one hand, the excess nitrogen is extracted and discharged by the exhaust hose 18, and on the other hand, the dust adhered to the wall of the downcomer 1 during the downflow process is extracted, which can prevent the downcomer 1 from being blocked during long-term use and can avoid the dust from mixing into the granule to affect the product quality.

[0036] Although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that can be understood by those skilled in the art.

[0037] Therefore, the above description is only the preferred embodiment of the present application, and is not intended to limit the scope of the present application; that is, various equivalent transformations made within the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. A nitrogen filling device for a granule packaging machine, comprising a granule discharging pipe, a discharging opening being fixedly connected to an upper end of the discharging pipe and communicating with an interior of the discharging pipe, characterized in that: The upper end of the downcomer is fixedly connected with a pipe at the rear side of the downcomer opening, the upper end of the pipe is inserted with a nitrogen filling connector, the nitrogen filling connector comprises a connector seat and a nitrogen filling pipe fixedly connected, the lower end of the nitrogen filling pipe extends to the lower end of the downcomer, and the upper end of the nitrogen filling pipe penetrates the connector seat and leads out.

2. A nitrogen filling device for a granule packer according to claim 1, characterized in that: The leading end of the nitrogen filling pipe is connected with a nitrogen filling hose circuit, and the nitrogen filling hose circuit is connected with a nitrogen source.

3. A nitrogen filling device for a granule packer according to claim 2, characterized in that: After leading out from the nitrogen source, the nitrogen filling hose circuit is connected with a nitrogen pump, a nitrogen filter, a pressure regulating valve, an oil removal filter, a solenoid valve and a shunt in sequence, and then is divided into several branches to be connected with the leading ends of the nitrogen filling pipes respectively.

4. A nitrogen filling device for a granule packer according to claim 3, characterized in that: Each branch is connected with a nitrogen flow meter.

5. A nitrogen filling device for a granule packer according to claim 4, characterized in that: The nitrogen flow meter is electrically connected with a relay in a power supply circuit of a granule packaging machine through a control unit.

6. A nitrogen filling device for a granule packer according to claim 5, characterized in that: The control unit is electrically connected with an alarm.

7. A nitrogen filling device for a granule packer according to claim 1, characterized in that: The connector seat is provided with a through hole communicated with the inside of the downcomer, an exhaust hose is inserted in the through hole, and the exhaust hose is connected with an exhaust pump.

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