Soft bag filling method and system

Abstract

The invention discloses a soft bag filling method and system.The soft bag filling system comprises a soft bag, a carrier, a bag opening mechanism and a filling mechanism, and the method comprises the following steps that the soft bag is arranged on the carrier with an upward opening, and the carrier conveys the soft bag to a filling station; the bag opening mechanism opens an opening of the soft bag, and the filling mechanism fills the soft bag from the opening; the middle and the bottom of the soft bag are fixed to a carrier, and a retaining mechanism is arranged above the carrier and used for keeping an opening of the soft bag upward in the conveying process. The system comprises a carrier, a bag opening mechanism and a filling mechanism, the bag opening mechanism is used for opening a soft bag opening formed in the carrier, the filling mechanism is used for filling a soft bag from the opening, the middle and the bottom of the soft bag are fixed to the carrier, a retaining mechanism is arranged above the carrier, and the retaining mechanism is used for retaining the soft bag. The keeping mechanism is used for keeping the opening of the soft bag upward in the conveying process; complex clamp driving is not needed, the soft bag is accurately positioned, and it can be guaranteed that the soft bag is smoothly opened only through the action of the bag opening mechanism.

Description

Technical Field

[0001] The present invention relates to the field of filling technology, and in particular to a soft bag filling method and system. Background Art

[0002] The powder-liquid dual-chamber soft bag large infusion product is an injection product containing infusion and sterile powder made of non-PVC special infusion film material; it is convenient and fast to use clinically, and the medication is safe and reliable. It is currently recognized worldwide as the safest and most reliable ready-to-mix large infusion product. The existing process equipment all adopts the tail filling process, and uses a movable carrier with positioning holes or a manipulator clamping method to convey the powder-liquid dual-chamber bag body. The existing equipment uses a positioning fixture to dock with the positioning hole on the upper part of the bag body to fix the powder-liquid dual-chamber bag. However, when filling the powder and opening the bag, the positioning fixture needs to be opened and closed to ensure the free state of the bag filling port, so as to perform filling and inflation. The structure is complex, the space occupied is large, the production capacity and qualified rate are low, and the production cost is extremely high. Summary of the invention

[0003] The purpose of the invention is to provide a soft bag filling method and system, which solves the problem that the existing equipment uses a positioning fixture to connect with the positioning hole on the upper part of the bag body to fix the powder-liquid double-chamber bag, but when filling the powder and opening the bag, the positioning fixture needs to be opened and closed to ensure the free state of the filling port of the bag body, so as to carry out filling and inflation, the structure is complex, the space occupancy is large, the production capacity and qualified rate are low, and the production cost is extremely high.

[0004] The present invention is implemented as follows: a soft bag filling method, comprising a soft bag, a carrier, a bag opening mechanism and a filling mechanism, the method is as follows:

[0005] Step 1: The soft bag is placed on a carrier with its opening facing upward, and the carrier transports the soft bag to a filling station;

[0006] Step 2, the bag opening mechanism opens the opening of the soft bag, and the filling mechanism fills the soft bag from the opening; in step 1, the middle and bottom of the soft bag are fixed on the carrier, and a holding mechanism is provided above the carrier, which is used to keep the opening of the soft bag facing upward during transportation.

[0007] In the present invention, the middle and bottom of the soft bag are fixed on the carrier. At this time, there is no other fixing or connecting structure at the top opening of the soft bag. The top of the soft bag is in a free state and can be opened directly by the bag opening mechanism without complicated clamp drive. The middle and bottom of the soft bag are fixed on the carrier, and the position is stable and not prone to displacement or other unexpected situations. The soft bag is accurately positioned, and only the action of the bag opening mechanism can ensure that the soft bag is opened smoothly. At the same time, a holding mechanism for keeping the soft bag opening facing upward is provided above the carrier, which facilitates the bag opening mechanism to position and open the bag, and the bag opening is smooth.

[0008] A further technical solution of the present invention is that the holding mechanism is placed on the front and rear planes of the soft bag and extends in a direction parallel to the plane of the soft bag; and is used to keep the opening of the soft bag facing upward during transportation.

[0009] The design of the holding mechanism can effectively prevent the soft bag from tilting forward and backward during transportation, ensuring the accuracy of filling.

[0010] A further technical solution of the present invention is that two sides of the middle part of the soft bag are fixed on a carrier.

[0011] The two sides of the middle of the soft bag are fixed to the carrier, so that the position of the soft bag on the carrier is more stable and is not prone to bending or tilting.

[0012] A further technical solution of the present invention is: a positioning hole or a limiting pin is provided in the middle of the soft bag, and a positioning pin or a positioning hole matching with the pin hole of the soft bag is provided on the carrier.

[0013] Pin-hole fit makes disassembly and installation easy.

[0014] A further technical solution of the present invention is: in step 2, the bag opening end of the bag opening mechanism moves relatively to the two sides of the top of the soft bag for opening the soft bag.

[0015] When opening the bag from both sides, the force on the soft bag is balanced and it is not easy to shake. The soft bag is more stable during the opening process.

[0016] A further technical solution of the present invention is that the bag opening mechanism adopts negative pressure adsorption to open the bag.

[0017] The bag opening end of the bag opening mechanism is placed at the front and back of the soft bag plane. By relatively moving the bag opening end to a suitable position, negative pressure adsorption can be performed on both sides of the soft bottom, so that the opening of the soft bag is opened, realizing negative pressure adsorption bag opening.

[0018] A further technical solution of the present invention is that the filling mechanism is connected to a feeding mechanism for replenishing the filling mechanism.

[0019] Ensure the raw material supply to the filling mechanism, thus ensuring the smooth progress of the filling process.

[0020] A further technical solution of the present invention is: the carrier equipped with the soft bag in step 1 is moved to the filling station through a conveying mechanism.

[0021] The conveying mechanism is arranged in sequence along the stations of cleaning, cutting, bag opening and inflation, front weighing, filling, inflation welding and sealing, rear weighing, bag unloading, etc. The carrier equipped with the soft bag moves to the filling station through the conveying mechanism for filling.

[0022] A further technical solution of the present invention is: a U-shaped groove fixed to the bottom of the soft bag is provided on the carrier.

[0023] The bottom of the soft bag is a mouth tube cover, which cooperates with the U-shaped groove, so the bottom can be fixed and is not prone to shaking during transportation.

[0024] The present invention also provides a soft bag filling system, including a carrier, a bag opening mechanism and a filling mechanism, wherein the bag opening mechanism is used to open the opening of a soft bag mounted on the carrier, and the filling mechanism is used to fill the soft bag from the opening. The middle and bottom of the soft bag are fixed on the carrier, and a holding mechanism is provided above the carrier, and the holding mechanism is used to keep the opening of the soft bag facing upward during transportation.

[0025] The beneficial effects of the present invention are as follows: the middle and bottom of the soft bag in the present invention are fixed on the carrier, and at this time, there is no other fixing or connecting structure at the top opening of the soft bag. The top of the soft bag is in a free state and can be opened directly by the bag opening mechanism without complicated clamp drive. The middle and bottom of the soft bag are fixed on the carrier, and the position is stable and not prone to displacement or other unexpected situations. The soft bag is accurately positioned, and only the action of the bag opening mechanism can ensure that the soft bag is opened smoothly. At the same time, a holding mechanism for keeping the soft bag opening facing upward is provided above the carrier, which facilitates the bag opening mechanism to position and open the bag, and the bag opening is carried out smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front view of a soft bag in a soft bag filling method provided by the present invention, in which the soft bag opening is arranged on a carrier with the opening facing upward;

[0027] Figure 2 It is a side view of a soft bag provided by the present invention in which the soft bag opening is arranged on a carrier with the soft bag opening facing upward;

[0028] Figure 3 It is a schematic diagram of a soft bag opening process of a soft bag filling method provided by the present invention;

[0029] Figure 4 It is a schematic diagram of a production line where a soft bag filling method provided by the present invention is located.

[0030] Figure numerals: 1. soft bag, 2. carrier, 3. bag opening mechanism, 4. filling mechanism, 5. holding mechanism, 6. feeding mechanism, 7. conveying mechanism. DETAILED DESCRIPTION

[0031] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0032] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0033] Embodiment 1:

[0034] Figure 1-4 A soft bag filling method is shown, comprising a soft bag 1, a carrier 2, a bag opening mechanism 3 and a filling mechanism 4, and the method is as follows:

[0035] Step 1, the soft bag 1 is placed on the carrier 2 with the opening facing upward, and the carrier 2 transports the soft bag 1 to the filling station;

[0036] Step 2, the bag opening mechanism 3 opens the opening of the soft bag 1, and the filling mechanism 4 fills the soft bag 1 from the opening; in step 1, the middle and bottom of the soft bag 1 are fixed on the carrier 2, and a holding mechanism 5 is provided above the carrier 2, and the holding mechanism 5 is used to keep the opening of the soft bag facing upward during transportation.

[0037] In the present invention, the middle and bottom of the soft bag are fixed on the carrier. At this time, there is no other fixing or connecting structure at the top opening of the soft bag. The top of the soft bag is in a free state and can be opened directly by the bag opening mechanism without complicated clamp drive. The middle and bottom of the soft bag are fixed on the carrier, and the position is stable and not prone to displacement or other unexpected situations. The soft bag is accurately positioned, and only the action of the bag opening mechanism can ensure that the soft bag is opened smoothly. At the same time, a holding mechanism for keeping the soft bag opening facing upward is provided above the carrier, which facilitates the bag opening mechanism to position and open the bag, and the bag opening is smooth.

[0038] The soft bags are heat-sealed to form a double-chamber soft bag. Figure 1 As shown; the bottom of the soft bag is the mouth tube cover, and the middle of the soft bag is the bottom of the cavity to be filled.

[0039] In this embodiment, the holding mechanism 5 is placed on the front and rear planes of the soft bag 1 and extends in a direction parallel to the plane of the soft bag 1; it is used to keep the opening of the soft bag facing upward during transportation.

[0040] The design of the holding mechanism can effectively prevent the soft bag from tilting forward and backward during transportation, ensuring the accuracy of filling.

[0041] In this embodiment, the holding mechanism is placed in the middle of the soft bag and fixed between the top opening, so as to keep the opening of the soft bag facing upward during transportation.

[0042] In this embodiment, two sides of the middle portion of the soft bag 1 are fixed on the carrier 2 .

[0043] The two sides of the middle of the soft bag are fixed to the carrier, so that the position of the soft bag on the carrier is more stable and is not prone to bending or tilting.

[0044] A positioning hole or a limiting pin is provided in the middle of the soft bag 1 , and a positioning pin or a positioning hole matching with the pin hole of the soft bag is provided on the carrier 2 .

[0045] Pin-hole fit makes disassembly and installation easy.

[0046] In this embodiment, a positioning hole is provided in the middle of the soft bag, and a positioning pin cooperating with the positioning hole is provided on the carrier to achieve fixation of the middle of the soft bag and the carrier.

[0047] In this embodiment, in step 2, the bag opening ends of the bag opening mechanism 3 move relatively to the two sides of the top of the soft bag 1 for opening the soft bag.

[0048] When opening the bag from both sides, the force on the soft bag is balanced and it is not easy to shake. The soft bag is more stable during the opening process.

[0049] In this embodiment, the bag opening mechanism 3 uses negative pressure adsorption to open the bag.

[0050] The bag opening end of the bag opening mechanism is placed at the front and back of the soft bag plane. By relatively moving the bag opening end to a suitable position, negative pressure adsorption can be performed on both sides of the soft bottom, so that the opening of the soft bag is opened, realizing negative pressure adsorption bag opening.

[0051] In this embodiment, the bag opening end of the bag opening mechanism is driven by a motor to move relatively.

[0052] In this embodiment, the filling mechanism 4 is connected to the feeding mechanism 6 for replenishing the filling mechanism 3 .

[0053] Ensure the raw material supply to the filling mechanism, thus ensuring the smooth progress of the filling process.

[0054] In this embodiment, in step 1, the carrier 2 with the soft bag 1 installed thereon is moved to the filling station via the conveying mechanism 7 .

[0055] The conveying mechanism is arranged in sequence along the stations of cleaning, cutting, bag opening and inflation, front weighing, filling, inflation welding and sealing, rear weighing, bag unloading, etc. The carrier equipped with the soft bag moves to the filling station through the conveying mechanism for filling.

[0056] In this embodiment, in step 1, the carrier 2 is provided with a U-shaped groove fixed to the bottom of the soft bag 1 .

[0057] The bottom of the soft bag is a mouth tube cover, which cooperates with the U-shaped groove, so the bottom can be fixed and is not prone to shaking during transportation.

[0058] In this embodiment, the U-shaped groove is perpendicular to the conveying direction of the carrier.

[0059] Embodiment 2:

[0060] like Figure 1-4 The soft bag filling system comprises a carrier 2, a bag opening mechanism 3 and a filling mechanism 4, wherein the bag opening mechanism 3 is used to open the opening of the soft bag 1 mounted on the carrier 2, and the filling mechanism 4 is used to fill the soft bag 1 from the opening. The system is characterized in that the middle and bottom of the soft bag 1 are fixed on the carrier 2, and a holding mechanism 5 is provided above the carrier 2, and the holding mechanism 5 is used to keep the opening of the soft bag facing upward during transportation.

[0061] The working process is as follows:

[0062] Step 1, the soft bag 1 is placed on the carrier 2 with the opening facing upward, and the carrier 2 transports the soft bag 1 to the filling station;

[0063] Step 2, the bag opening mechanism 3 opens the opening of the soft bag 1, and the filling mechanism 4 fills the soft bag 1 from the opening; in step 1, the middle and bottom of the soft bag 1 are fixed on the carrier 2, and a holding mechanism 5 is provided above the carrier 2, and the holding mechanism 5 is used to keep the opening of the soft bag facing upward during transportation.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A soft bag filling method, comprising a soft bag (1), a carrier (2), a bag opening mechanism (3) and a filling mechanism (4), the method being as follows: Step 1: The soft bag (1) is placed on a carrier (2) with its opening facing upward, and the carrier (2) transports the soft bag (1) to a filling station; Step 2: The bag opening mechanism (3) opens the opening of the soft bag (1), and the filling mechanism (4) fills the soft bag (1) from the opening; the method is characterized in that: In step 1, the middle and bottom of the soft bag (1) are fixed on a carrier (2), and a holding mechanism (5) is provided above the carrier (2). The holding mechanism (5) is used to keep the opening of the soft bag facing upward during transportation.

2. A soft bag filling method according to claim 1, characterized in that: The holding mechanism (5) is placed on the front and rear planes of the soft bag (1) and extends in a direction parallel to the plane of the soft bag (1); it is used to keep the opening of the soft bag facing upwards during the transportation process.

3. A soft bag filling method according to claim 1, characterized in that: Both sides of the middle part of the soft bag (1) are fixed on the carrier (2).

4. A soft bag filling method according to any one of claims 1 to 3, characterized in that: The soft bag (1) is provided with a positioning hole or a limiting pin in the middle, and the carrier (2) is provided with a positioning pin or a positioning hole that matches the pin hole of the soft bag.

5. A soft bag filling method according to any one of claims 1 to 3, characterized in that: In the step 2, the bag opening end of the bag opening mechanism (3) moves relatively to the two sides of the top of the soft bag (1) for opening the soft bag.

6. A soft bag filling method according to any one of claims 1 to 3, characterized in that: The bag opening mechanism (3) uses negative pressure adsorption to open the bag.

7. A soft bag filling method according to any one of claims 1 to 3, characterized in that: The filling mechanism (4) is connected to a feeding mechanism (6) and is used to replenish the filling mechanism (3).

8. A soft bag filling method according to any one of claims 1 to 3, characterized in that: In the step 1, the carrier (2) equipped with the soft bag (1) is moved to the filling station via the conveying mechanism (7).

9. A soft bag filling method according to any one of claims 1 to 3, characterized in that: In the step 1, the carrier (2) is provided with a U-shaped groove fixed to the bottom of the soft bag (1).

10. A soft bag filling system, comprising a carrier (2), a bag opening mechanism (3) and a filling mechanism (4), wherein the bag opening mechanism (3) is used to open an opening of a soft bag (1) mounted on the carrier (2), and the filling mechanism (4) is used to fill the soft bag (1) from the opening, characterized in that: The middle and bottom of the soft bag (1) are fixed on a carrier (2), and a holding mechanism (5) is provided above the carrier (2). The holding mechanism (5) is used to keep the opening of the soft bag facing upward during transportation.

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