A weighing method and system for flexible containers

Abstract

This invention discloses a weighing method and system for flexible containers. The weighing method includes a carrier with the flexible container mounted on it moving to a separation station; a transfer mechanism located above the separation station descends and grabs the flexible container and a support; the transfer mechanism rises to separate the support from the sliding seat; the transfer mechanism and / or the weighing mechanism actuate, the support is positioned above the weighing mechanism, the transfer mechanism descends and releases, completing the weighing; the support is provided with a bag-hanging pin, and the transfer mechanism is provided with a positioning hole that mates with the bag-hanging pin; the system includes a carrier, a transfer mechanism, and a weighing mechanism. The carrier includes a support and a sliding seat. The support is used to mount the flexible container, the sliding seat is connected to a conveying mechanism, and the transfer mechanism is used to transfer the support between the weighing mechanism and the sliding seat. The support is provided with a bag-hanging pin, and the transfer mechanism is provided with a positioning hole that mates with the bag-hanging pin; this invention features a simple structure, accurate weighing, stable cooperation between the limiting sliding seat and the support, and convenient separation of the support from the sliding seat.

Description

Technical Field

[0001] This invention relates to the field of flexible container clamping technology, and in particular to a weighing method and system for flexible containers. Background Technology

[0002] The powder-liquid dual-chamber soft bag large-volume parenteral solution is an injectable product containing both infusion fluid and sterile powder, made from non-PVC infusion-specific membrane material. It is convenient and quick to use clinically, and its administration is safe and reliable, making it the safest and most reliable ready-to-use large-volume parenteral solution product recognized worldwide. Existing processes and equipment all employ a tail-filling process, using a bracket with positioning holes or a robotic arm to transport the powder-liquid dual-chamber bags. The powder filling process of the powder-liquid dual-chamber bags needs to have the function of detecting the amount of powder filled. Existing bag-hanging fixtures, such as the detachable powder-filling bag-hanging fixture described in patent number CN202020223073.8, use a clamping device that moves back and forth, causing a compression spring to compress and extend, controlling the clamping and releasing of the movable fixture by a swing arm in the fixed fixture, thus achieving detachability. However, this existing technology separates the movable fixture through one end of the swing arm, resulting in poor stability and uneven force distribution on the swing arm. Furthermore, the clamping requires active operation, necessitating an opening device on the conveyor belt, leading to a complex structure. Summary of the Invention

[0003] The purpose of this invention is to provide a weighing system for flexible containers, which solves the problems of existing technology that separates the movable clamp by one end of the swing arm, resulting in poor stability, uneven force on the swing arm, and the need for active clamping, which necessitates the installation of a clamping device on the conveyor belt, leading to a complex structure.

[0004] This invention is implemented as follows: a weighing method for a flexible container, comprising a weighing mechanism, a transfer mechanism, and a carrier, wherein the carrier includes a support and a sliding seat, and the weighing method includes the following steps:

[0005] S1. The carrier with the flexible container moves to the separation station. The transfer mechanism above the separation station descends and grabs the flexible container and the support. The transfer mechanism rises to separate the support from the sliding seat.

[0006] S2, the transfer mechanism and / or weighing mechanism are activated, the support is positioned above the weighing mechanism, the transfer mechanism descends and releases, and the weighing is completed;

[0007] The bracket is provided with a hanging pin for fixing the flexible container, and the transfer mechanism is provided with a positioning hole that cooperates with the hanging pin.

[0008] In this invention, the support in the carrier can be separated from the sliding seat by the lowering and gripping action of the transfer mechanism. This eliminates the need for complex mechanisms, such as the clamping mechanism described in the prior art. Compared to existing technologies, this design is simpler and avoids interference during movement, ensuring smooth weighing. Simultaneously, during weighing, the transfer mechanism lowers and releases the support with the flexible container. The support with the flexible container is then placed on the weighing mechanism for weighing, preventing interference from the sliding seat and ensuring accurate weighing. The support is equipped with a bag-hanging pin for fixing the flexible container, facilitating its positioning and material filling. The transfer mechanism has a positioning hole that engages with the bag-hanging pin. Once the positioning hole and bag-hanging pin are in place, the support with the flexible container is transferred via the transfer mechanism. This not only ensures accurate engagement between the support and the sliding seat upon return to its original position but also facilitates the transfer of the support with the flexible container.

[0009] A further technical solution of the present invention is: a carrier equipped with a flexible container moves horizontally to the separation station.

[0010] The carrier moves horizontally to the separation station via the conveying mechanism, and the horizontal movement facilitates the operation of the transfer mechanism.

[0011] A further technical solution of the present invention is: the bracket is fitted with the sliding seat shaft hole, and the hole is vertically arranged.

[0012] The bracket and the sliding seat shaft hole are matched and the hole is set vertically. This not only serves to limit the stability of the sliding seat and the bracket, but also facilitates the separation of the bracket from the sliding seat when the transfer mechanism rises.

[0013] A further technical solution of the present invention is: the sliding seat is provided with a limiting hole or a limiting shaft, and the bracket is provided with a limiting hole or a limiting shaft that cooperates with the limiting hole or shaft hole.

[0014] A further technical solution of the present invention is that the carrier further includes fasteners for fixing the bracket.

[0015] To further ensure the stability of the bracket and sliding seat when they are in contact, the vehicle also includes fasteners for fixing the bracket.

[0016] A further technical solution of the present invention is that the fastener is an electromagnet or an elastic limiting member.

[0017] Both the elastic limiting element and the magnetic element can fix the bracket and do not hinder the separation of the bracket from the sliding seat.

[0018] A further technical solution of the present invention is that the weighing mechanism is fixed in position, and the transfer mechanism rotates or translates.

[0019] A further technical solution of the present invention is: the weighing method further includes step S3, after the weighing is completed, the transfer mechanism and / or the weighing mechanism are activated, the transfer mechanism is located above the separation station, the transfer mechanism descends to place the bracket on the sliding seat, the transfer mechanism releases the bracket and rises to complete the reset of the bracket.

[0020] After the support is reset, it facilitates the weighing of the flexible container on the next carrier.

[0021] The present invention also provides a weighing system for a flexible container, including a carrier, a transfer mechanism, and a weighing mechanism. The carrier includes a support and a sliding seat. The support is used to mount the flexible container. The sliding seat is connected to a conveying mechanism. The transfer mechanism is used to transfer the support between the weighing mechanism and the sliding seat. The support is provided with a bag-hanging pin for fixing the flexible container. The transfer mechanism is provided with a positioning hole that cooperates with the bag-hanging pin.

[0022] The support is equipped with a bag-hanging pin for fixing the flexible container, which is used for positioning the flexible container and facilitates the filling of materials; the transfer mechanism is equipped with a positioning hole that cooperates with the bag-hanging pin. After the positioning hole and the bag-hanging pin are in place, the support with the flexible container is transferred by the transfer mechanism. This not only ensures that the support can accurately cooperate with the sliding seat when returning to its original position, but also facilitates the transfer of the support with the flexible container.

[0023] A further technical solution of the present invention is that the bracket can be detached and moved up and down on the sliding seat.

[0024] The beneficial effects of this invention are as follows: In this invention, the support in the carrier can be separated from the sliding seat by the lowering and gripping of the transfer mechanism, without the need for a complex mechanism, such as the clamping mechanism in the prior art. Compared with the prior art, the structure is simple and there is no interference problem during the movement, ensuring the smooth weighing process. At the same time, during weighing, the transfer mechanism lowers and releases the support with the flexible container, and the support with the flexible container is placed on the weighing mechanism for weighing. The sliding seat will not interfere with the weighing process, ensuring the accuracy of the weighing.

[0025] The support is equipped with a bag-hanging pin for fixing the flexible container, which is used for positioning the flexible container and facilitates the filling of materials; the transfer mechanism is equipped with a positioning hole that cooperates with the bag-hanging pin. After the positioning hole and the bag-hanging pin are in place, the support with the flexible container is transferred by the transfer mechanism. This not only ensures that the support can accurately cooperate with the sliding seat when returning to its original position, but also facilitates the transfer of the support with the flexible container. Attached Figure Description

[0026] Figure 1 This is a schematic flowchart of a weighing method for a flexible container provided by the present invention;

[0027] Figure 2 This is a schematic flowchart of a weighing method for a flexible container according to Embodiment 2 of the present invention;

[0028] Figure 3 This is a structural schematic diagram of a weighing system for a flexible container provided by the present invention;

[0029] Figure 4 This is a schematic diagram of the connection between the carrier and the conveying mechanism provided by the present invention;

[0030] Figure 5 This is a structural schematic diagram of the connection between the carrier and the conveying mechanism provided by the present invention from another perspective;

[0031] Figure 6 This is an exploded view of the vehicle provided by the present invention;

[0032] Figure 7 This is an enlarged view of point A provided by the present invention.

[0033] Reference numerals in the attached drawings: 1. Sliding seat, 2. Bracket, 3. Limiting hole, 4. Limiting shaft, 5. Fastener, 6. Weighing mechanism, 7. Transfer mechanism, 8. Bag hanging pin, 9. Positioning hole, 71. Lifting and rotating component, 72. Clamping component. Detailed Implementation

[0034] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0035] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0036] Example 1:

[0037] Figure 1 , 3-7 illustrates a weighing method for a flexible container, including a weighing mechanism 6, a transfer mechanism 7, and a carrier. The carrier includes a support 2 and a sliding seat 1. The weighing method includes the following steps:

[0038] S1. The carrier with the flexible container moves to the separation station. The transfer mechanism 7 located above the separation station descends and grabs the flexible container and the support 2. The transfer mechanism 7 rises to separate the support 2 from the sliding seat 1.

[0039] S2, the transfer mechanism 7 and / or the weighing mechanism 6 are activated, the support 2 is positioned above the weighing mechanism 6, the transfer mechanism 7 descends and releases, and the weighing is completed;

[0040] The bracket 2 is provided with a hanging pin 8 for fixing the flexible container, and the transfer mechanism 7 is provided with a positioning hole 9 that cooperates with the hanging pin 8.

[0041] In this invention, the support in the carrier can be separated from the sliding seat by the lowering and gripping action of the transfer mechanism. This eliminates the need for complex mechanisms, such as the clamping mechanism described in the prior art. Compared to existing technologies, this design is simpler and avoids interference during movement, ensuring smooth weighing. Simultaneously, during weighing, the transfer mechanism lowers and releases the support with the flexible container. The support with the flexible container is then placed on the weighing mechanism for weighing, preventing interference from the sliding seat and ensuring accurate weighing. The support is equipped with a bag-hanging pin for fixing the flexible container, facilitating its positioning and material filling. The transfer mechanism has a positioning hole that engages with the bag-hanging pin. Once the positioning hole and bag-hanging pin are in place, the support with the flexible container is transferred via the transfer mechanism. This not only ensures accurate engagement between the support and the sliding seat upon return to its original position but also facilitates the transfer of the support with the flexible container.

[0042] In this embodiment, the carrier equipped with the flexible container moves horizontally to the separation station.

[0043] The carrier moves horizontally to the separation station via the conveying mechanism, and the horizontal movement facilitates the operation of the transfer mechanism.

[0044] In this embodiment, the conveying mechanism is a conveyor belt.

[0045] In this embodiment, the bracket 2 is fitted with the shaft hole of the sliding seat 1, and the hole is vertically oriented.

[0046] The bracket and the sliding seat shaft hole are matched and the hole is set vertically. This not only serves to limit the stability of the sliding seat and the bracket, but also facilitates the separation of the bracket from the sliding seat when the transfer mechanism rises.

[0047] In this embodiment, the sliding seat 1 is provided with a limiting hole 3 or a limiting shaft 4, and the bracket 2 is provided with a limiting hole 3 or a limiting shaft 4 that cooperates with the limiting hole 3 shaft hole.

[0048] In this embodiment, the sliding seat is provided with a limiting hole, and the bottom of the bracket is provided with a limiting shaft. When the transfer mechanism drives the bracket to move up and down, separation and engagement are achieved through the cooperation of the limiting shaft and the limiting hole.

[0049] In another embodiment, the sliding seat is provided with a limiting shaft, and the bottom of the bracket is provided with a limiting hole.

[0050] In this embodiment, the carrier further includes fasteners 5 for securing the bracket 2.

[0051] To further ensure the stability of the bracket and sliding seat when they are in contact, the vehicle also includes fasteners for fixing the bracket.

[0052] In this embodiment, the fastener is an electromagnet or an elastic limiting member.

[0053] Both the elastic limiting element and the magnetic element can fix the bracket and do not hinder the separation of the bracket from the sliding seat.

[0054] In this embodiment, the fastener is an elastic limiting member, which is disposed in the hole. In other embodiments, the elastic limiting member can be sleeved on the shaft.

[0055] In another embodiment, the fastener is an electromagnet, which is placed inside a hole and the shaft is made of a metal material that can be attracted to the electromagnet; alternatively, the electromagnet can also be mounted on a shaft, and the hole is made of a metal material that can be attracted to the electromagnet.

[0056] In this embodiment, the weighing mechanism 6 is fixed in position, and the transfer mechanism 7 rotates or translates.

[0057] In another embodiment, after the transfer mechanism rises and separates the support from the sliding seat, the position of the rotating mechanism is fixed, and the weighing mechanism moves until the support is above the weighing mechanism; wherein the weighing mechanism can be a translational or a rotational method.

[0058] In another embodiment, the transfer mechanism and the weighing mechanism can move simultaneously, which can also achieve the position of the support above the weighing mechanism.

[0059] In this embodiment, the transfer mechanism 7 includes a lifting and rotating component 71 and a clamping component 72 connected to the movable end of the lifting and rotating component 71. The clamping component 72 is used to clamp the bracket 2 and transfer it through the lifting and rotating component 71.

[0060] In another embodiment, the transfer mechanism includes a lifting member and a clamping member that translates along the output end of the lifting member. The clamping member is used to clamp the bracket for transfer via lifting.

[0061] In this embodiment, the clamping member is equipped with a sensor. After the sensing bracket is in place, the sensor engages with the bag hanging pin on the bracket through the positioning hole on the clamping member.

[0062] Example 2:

[0063] Figure 2-7 A weighing method for a flexible container is shown. This embodiment further includes step S3 on the basis of embodiment one. After weighing is completed, the transfer mechanism 7 and / or the weighing mechanism are activated. The transfer mechanism is located above the separation station. The transfer mechanism descends and places the support 2 on the sliding seat 1. After the transfer mechanism 7 releases the support 2, it rises to complete the reset of the support.

[0064] After the support is reset, it facilitates the weighing of the flexible container on the next carrier.

[0065] The working principle of this invention is as follows: A carrier with a flexible container moves to the separation station; the gripping end of the transfer mechanism located above the separation station opens; the transfer mechanism descends until the positioning hole on the gripping end of the transfer mechanism and the bag hanging pin on the bracket are in place; the gripping end of the transfer mechanism grips the flexible container and the bracket through the cooperation of the positioning hole and the bag hanging pin, the transfer mechanism rises, and the bracket separates from the sliding seat; the transfer mechanism rotates until the bracket is above the weighing mechanism, the transfer mechanism descends, and then releases the bracket, the bracket is weighed on the weighing mechanism as shown, after the weighing is completed, the transfer mechanism grips the weighed bracket with the flexible container, and then rises; the transfer mechanism rotates back above the separation station, the transfer mechanism descends to place the bracket on the sliding seat with the shaft hole engaged, the transfer mechanism releases the bracket, and then rises back to its original position, and the bracket also resets.

[0066] Example 3

[0067] like Figure 3-7 The weighing system for a flexible container shown includes a carrier, a transfer mechanism 7, and a weighing mechanism 6. The carrier includes a support 2 and a sliding seat 1. The support 2 is used to mount the flexible container. The sliding seat 1 is connected to a conveying mechanism. The transfer mechanism 7 is used to transfer the support 2 between the weighing mechanism 6 and the sliding seat 1. The support 2 is provided with a hanging pin 8 for fixing the flexible container. The transfer mechanism 7 is provided with a positioning hole 9 that cooperates with the hanging pin 8.

[0068] In this embodiment, the bracket 2 can be detached and moved up and down on the sliding seat 1.

[0069] The support is equipped with a bag-hanging pin for fixing the flexible container, which is used for positioning the flexible container and facilitates the filling of materials; the transfer mechanism is equipped with a positioning hole that cooperates with the bag-hanging pin. After the positioning hole and the bag-hanging pin are in place, the support with the flexible container is transferred by the transfer mechanism. This not only ensures that the support can accurately cooperate with the sliding seat when returning to its original position, but also facilitates the transfer of the support with the flexible container.

[0070] 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 within the protection scope of the present invention.

Claims

1. A method for weighing a flexible container, comprising a weighing mechanism (6), a transfer mechanism (7), and a carrier, the carrier comprising a support (2) and a sliding seat (1), characterized in that, The weighing method includes the following steps: S1. The carrier with the flexible container moves to the separation station. The transfer mechanism (7) located above the separation station descends and grabs the flexible container and the support (2). The transfer mechanism (7) rises to separate the support (2) from the sliding seat (1). S2, the transfer mechanism (7) and / or the weighing mechanism (6) are activated, the support (2) is positioned above the weighing mechanism (6), the transfer mechanism (7) descends and releases, and the weighing is completed; The bracket (2) is provided with a hanging pin (8) for fixing the flexible container, and the transfer mechanism (7) is provided with a positioning hole (9) that cooperates with the hanging pin (8); the transfer mechanism (7) includes a lifting and rotating component (71) and a clamping component (72) connected to the movable end of the lifting and rotating component (71). The clamping component (72) is used to clamp the bracket (2) and transfer it through the lifting and rotating component (71). The bracket (2) engages with the shaft hole of the sliding seat (1), and the hole is vertically arranged; the carrier also includes fasteners (5) for fixing the bracket (2).

2. The weighing method for a flexible container according to claim 1, characterized in that, The carrier equipped with a flexible container moves horizontally to the separation station.

3. The weighing method for a flexible container according to claim 1, characterized in that, The sliding seat (1) is provided with a limiting hole (3) or a limiting shaft (4), and the bracket (2) is provided with a limiting hole (3) or a limiting shaft (4) that cooperates with the limiting hole (3) shaft hole.

4. The weighing method for a flexible container according to claim 1, characterized in that, The fasteners are electromagnets or elastic limiting components.

5. A weighing method for a flexible container according to claim 1 or 2, characterized in that, The weighing mechanism (6) is fixed in position, and the transfer mechanism (7) rotates or translates.

6. A weighing method for a flexible container according to claim 1 or 2, characterized in that, The weighing method further includes step S3: after weighing is completed, the transfer mechanism (7) and / or the weighing mechanism are activated. The transfer mechanism is located above the separation station. The transfer mechanism descends and places the support (2) on the sliding seat (1). The transfer mechanism (7) releases the support (2) and rises to complete the reset of the support.

7. A weighing system for a flexible container, comprising a carrier, a transfer mechanism (7), and a weighing mechanism (6), wherein the carrier comprises a support (2) and a sliding seat (1), the support (2) being used to mount the flexible container, the sliding seat (1) being connected to a conveying mechanism, and the transfer mechanism (7) being used to transfer the support (2) between the weighing mechanism (6) and the sliding seat (1), characterized in that: The bracket (2) is provided with a hanging pin (8) for fixing the flexible container, and the transfer mechanism (7) is provided with a positioning hole (9) that cooperates with the hanging pin (8); the transfer mechanism (7) includes a lifting and rotating component (71) and a clamping component (72) connected to the movable end of the lifting and rotating component (71). The clamping component (72) is used to clamp the bracket (2) and transfer it through the lifting and rotating component (71); the bracket (2) cooperates with the shaft hole of the sliding seat (1), and the hole is set vertically; the carrier also includes a fastener (5) for fixing the bracket (2).

8. The weighing system for a flexible container according to claim 7, characterized in that, The bracket (2) can be moved up and down and disassembled on the sliding seat (1).

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