Weighing method and system of flexible container

Abstract

The invention discloses a weighing method and system for a flexible container. The weighing method comprises the steps that a carrier provided with the flexible container moves to a separation station, a transfer mechanism located above the separation station descends and grabs the flexible container and a support, and the transfer mechanism ascends to separate the support from a sliding base; the transfer mechanism and / or the weighing mechanism act, the support is located above the weighing mechanism, the transfer mechanism descends and loosens, and weighing is completed; a bag hanging pin is arranged on the support, and a positioning hole matched with the bag hanging pin is formed in the transfer mechanism. The system comprises a carrier, a transfer mechanism and a weighing mechanism, the carrier comprises a support and a sliding seat, the support is used for mounting a flexible container, the sliding seat is connected with a conveying mechanism, the transfer mechanism is used for transferring the support between the weighing mechanism and the sliding seat, a bag hanging pin is arranged on the support, and a positioning hole matched with the bag hanging pin is formed in the transfer mechanism; the weighing device is simple in structure and accurate in weighing, the limiting sliding seat is stably matched with the support, and the support can be conveniently separated from the sliding seat.

Description

Technical Field

[0001] The present invention relates to the technical field of flexible container clamps, and in particular to a weighing method and system for a flexible container. 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 materials; 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 bracket with positioning holes or a manipulator clamping method to convey the powder-liquid dual-chamber bag body. The powder filling process of the powder-liquid dual-chamber bag needs to have the function of detecting the filling amount of the powder. The existing hanging bag clamp, such as a detachable powder filling hanging bag clamp with patent number CN202020223073.8, moves the clamping device forward and backward to compress and extend the compression spring, and control the swing arm in the fixed clamp to clamp and release the movable clamp, so that the clamp can be separated; the existing technology separates the movable clamp by one end of the swing arm, the stability is poor, and the swing arm is unevenly stressed, and its opening requires active opening, which will cause the conveyor belt to be equipped with an opening device, and the structure is complicated. Summary of the invention

[0003] The purpose of the invention is to provide a weighing system for flexible containers, which solves the problem that the prior art separates the movable clamp by one end of a swing arm, has poor stability and uneven force on the swing arm, and requires active clamping, which results in the conveyor belt having to be equipped with a clamping device and a complex structure.

[0004] The present invention is implemented as follows: a weighing method for a flexible container includes a weighing mechanism, a transfer mechanism and a carrier, the carrier includes a bracket and a sliding seat, and the weighing method includes the following steps:

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

[0006] S2, the transfer mechanism and / or the weighing mechanism is activated, the bracket is located above the weighing mechanism, the transfer mechanism is lowered and released, and the weighing is completed;

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

[0008] In the present invention, the bracket in the carrier can be separated from the sliding seat by the descending grabbing of the transfer mechanism, and there is no need to design a complex mechanism, such as the clamping mechanism in the background technology. Compared with the prior art, the structure is simple, and there is no interference problem during the movement, ensuring the smooth weighing; at the same time, when weighing, the transfer mechanism descends and loosens the bracket with the flexible container installed, and the bracket 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 weighing. The bracket is provided with a bag hanging pin for fixing the flexible container, which is used for positioning the flexible container and is conducive to filling materials; the transfer mechanism is provided with a positioning hole that cooperates with the bag hanging pin. After the positioning hole and the bag hanging pin are in place, the bracket with the flexible container is transported by the transfer mechanism, which not only ensures that the bracket can accurately cooperate with the sliding seat when returning to its position, but also facilitates the transportation of the bracket with the flexible container.

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

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

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

[0012] The bracket and the sliding seat shaft hole are matched and the hole is arranged vertically, which not only plays the role of limiting the stability of the matching between 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: a limiting hole or a limiting shaft is provided on the sliding seat, and a limiting hole or a limiting shaft matching with the limiting hole shaft hole is provided on the bracket.

[0014] A further technical solution of the present invention is: the carrier also includes a fastener for fixing the bracket.

[0015] In order to further ensure the stability of the bracket and the sliding seat when they are matched, the carrier also includes a fastener for fixing the bracket.

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

[0017] The elastic limiting member and the magnetic member can both fix the bracket and do not hinder the separation of the bracket and 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 also includes step S3. After weighing is completed, the transfer mechanism and / or the weighing mechanism is activated, the transfer mechanism is located above the separation station, the transfer mechanism descends to place the bracket on the sliding seat, and the transfer mechanism releases the bracket and then rises to complete the resetting of the bracket.

[0020] After the bracket is reset, it is convenient to weigh the flexible container on the next carrier.

[0021] The present invention also provides a weighing system for a flexible container, comprising a carrier, a transfer mechanism and a weighing mechanism, the carrier comprising a bracket and a sliding seat, the bracket being used to mount the flexible container, the sliding seat being connected to the conveying mechanism, the transfer mechanism being used to transfer the bracket between the weighing mechanism and the sliding seat, the bracket being provided with a bag hanging pin for fixing the flexible container, and the transfer mechanism being provided with a positioning hole cooperating with the bag hanging pin.

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

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

[0024] Beneficial effects of the present invention: In the present invention, the bracket in the carrier can be separated from the sliding seat by the descending and grabbing of the transfer mechanism, and there is no need to design a complex mechanism, such as the clamping mechanism in the background technology. Compared with the prior art, the structure is simple and there is no problem of interference during movement, thereby ensuring the smooth weighing; at the same time, during weighing, the transfer mechanism descends and releases the bracket with the flexible container installed, and the bracket with the flexible container is placed on the weighing mechanism for weighing. The sliding seat will not interfere with the weighing process, thereby ensuring the accuracy of weighing.

[0025] The bracket is provided with a bag hanging pin for fixing the flexible container, which is used for positioning the flexible container and is conducive to filling materials; the transfer mechanism is provided with a positioning hole that cooperates with the bag hanging pin. After the positioning hole and the bag hanging pin are in place, the bracket with the flexible container is transferred through the transfer mechanism, which not only ensures that the bracket can accurately cooperate with the sliding seat when returning to its position, but also facilitates the transfer of the bracket with the flexible container. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0027] Figure 2 It is a schematic flow chart of a weighing method of a flexible container according to the second embodiment of the present invention;

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

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

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

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

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

[0033] Figure numerals: 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 member, 72. clamping member. DETAILED DESCRIPTION

[0034] 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.

[0035] 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.

[0036] Embodiment 1:

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

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

[0039] S2, the transport mechanism 7 and / or the weighing mechanism 6 are activated, the bracket 2 is located above the weighing mechanism 6, the transport mechanism 7 is lowered and released, and the weighing is completed;

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

[0041] In the present invention, the bracket in the carrier can be separated from the sliding seat by the descending grabbing of the transfer mechanism, and there is no need to design a complex mechanism, such as the clamping mechanism in the background technology. Compared with the prior art, the structure is simple, and there is no interference problem during the movement, ensuring the smooth weighing; at the same time, when weighing, the transfer mechanism descends and loosens the bracket with the flexible container installed, and the bracket 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 weighing. The bracket is provided with a bag hanging pin for fixing the flexible container, which is used for positioning the flexible container and is conducive to filling materials; the transfer mechanism is provided with a positioning hole that cooperates with the bag hanging pin. After the positioning hole and the bag hanging pin are in place, the bracket with the flexible container is transported by the transfer mechanism, which not only ensures that the bracket can accurately cooperate with the sliding seat when returning to its position, but also facilitates the transportation of the bracket 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 through 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 cooperates with the axial hole of the sliding seat 1, and the hole is arranged vertically.

[0046] The bracket and the sliding seat shaft hole are matched and the hole is arranged vertically, which not only plays the role of limiting the stability of the matching between 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 matches the shaft hole of the limiting hole 3.

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

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

[0050] In this embodiment, the carrier further includes a fastener 5 for fixing the bracket 2 .

[0051] In order to further ensure the stability of the bracket and the sliding seat when they are matched, the carrier also includes a fastener for fixing the bracket.

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

[0053] The elastic limiting member and the magnetic member can both fix the bracket and do not hinder the separation of the bracket and the sliding seat.

[0054] In this embodiment, the fastener is an elastic limiter, and the elastic limiter is arranged in the hole. As another embodiment, the elastic limiter can be sleeved on the shaft.

[0055] As another embodiment, the fastener is an electromagnet, the electromagnet is placed in the hole and the shaft is made of a metal material that can be adsorbed by the electromagnet; in addition, the electromagnet can also be set on the shaft, and the hole is made of a metal material that can be adsorbed by the electromagnet.

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

[0057] As another embodiment, after the transfer mechanism rises to separate the bracket from the sliding seat, the position of the rotating mechanism is fixed, and the weighing mechanism moves until the bracket is located above the weighing mechanism; wherein the weighing mechanism can be translated or rotated.

[0058] As another embodiment, the transport mechanism and the weighing mechanism can move simultaneously, and the bracket can also be located above the weighing mechanism.

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

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

[0061] In this embodiment, a sensor is provided on the clamping member, and after the sensing bracket is in place, the sensor cooperates with the bag hanging pin on the bracket through the positioning hole on the clamping member.

[0062] Embodiment 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 1. After weighing is completed, the transfer mechanism 7 and / or the weighing mechanism is actuated. The transfer mechanism is located above the separation station. The transfer mechanism descends to place the bracket 2 on the sliding seat 1. The transfer mechanism 7 releases the bracket 2 and then rises to complete the resetting of the bracket.

[0064] After the bracket is reset, it is convenient to weigh the flexible container on the next carrier.

[0065] The working principle of the present invention is as follows: the carrier equipped with a flexible container moves to the separation station; the grabbing end of the transfer mechanism located above the separation station is opened; the transfer mechanism descends until the positioning hole on the grabbing end of the transfer mechanism and the bag hanging pin on the bracket are in place; the grabbing end of the transfer mechanism grabs 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 is separated from the sliding seat; the transfer mechanism rotates until the bracket is located above the weighing mechanism, the transfer mechanism descends, and then the bracket is released, and the bracket is weighed on the weighing mechanism. After the weighing is completed, the transfer mechanism grabs the weighed bracket with the flexible container, and then rises; the transfer mechanism rotates back to above the separation station, the transfer mechanism descends to place the bracket on the sliding seat to cooperate with the shaft hole, the transfer mechanism releases the bracket, and then rises to its original position, and the bracket is also reset.

[0066] Embodiment 3

[0067] like Figure 3-7 A weighing system for a flexible container is shown, comprising a carrier, a transfer mechanism 7 and a weighing mechanism 6, wherein the carrier comprises a bracket 2 and a sliding seat 1, wherein the bracket 2 is used to mount the flexible container, the sliding seat 1 is connected to the conveying mechanism, and the transfer mechanism 7 is used to transfer the bracket 2 between the weighing mechanism 6 and the sliding seat 1, the bracket 2 is provided with a bag hanging pin 8 for fixing the flexible container, and the transfer mechanism 7 is provided with a positioning hole 9 cooperating with the bag hanging pin 8.

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

[0069] The bracket is provided with a bag hanging pin for fixing the flexible container, which is used for positioning the flexible container and is conducive to filling materials; the transfer mechanism is provided with a positioning hole that cooperates with the bag hanging pin. After the positioning hole and the bag hanging pin are in place, the bracket with the flexible container is transferred through the transfer mechanism, which not only ensures that the bracket can accurately cooperate with the sliding seat when returning to its position, but also facilitates the transfer of the bracket 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 in 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, wherein the carrier comprises a bracket (2) and a sliding seat (1), characterized in that: The weighing method includes the following steps: S1, the carrier equipped 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 bracket (2), and the transfer mechanism (7) rises to separate the bracket (2) from the sliding seat (1); S2, the transfer mechanism (7) and / or the weighing mechanism (6) are activated, the bracket (2) is located above the weighing mechanism (6), the transfer mechanism (7) is lowered and released, and the weighing is completed; The bracket (2) is provided with a bag hanging pin (8) for fixing the flexible container, and the transfer mechanism (7) is provided with a positioning hole (9) that cooperates with the bag hanging pin (8).

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

3. A weighing method for a flexible container according to claim 1 or 2, characterized in that: The bracket (2) cooperates with the axial hole of the sliding seat (1), and the hole is arranged vertically.

4. A method for weighing a flexible container according to claim 3, 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 matches the shaft hole of the limiting hole (3).

5. A method for weighing a flexible container according to claim 3, characterized in that: The carrier also includes a fastener (5) for fixing the bracket (2).

6. A method for weighing a flexible container according to claim 5, characterized in that: The fastener (6) is an electromagnet or an elastic limiting member.

7. A method for weighing 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) is rotated or translated.

8. A method for weighing a flexible container according to claim 1 or 2, characterized in that: The weighing method further comprises step S3, after the weighing is completed, the transfer mechanism (7) and / or the weighing mechanism is actuated, the transfer mechanism is located above the separation station, the transfer mechanism descends to place the bracket (2) on the sliding seat (1), the transfer mechanism (7) releases the bracket (2) and then rises to complete the resetting of the bracket.

9. A weighing system for a flexible container, comprising a carrier, a transfer mechanism (7) and a weighing mechanism (6), wherein the carrier comprises a bracket (2) and a sliding seat (1), wherein the bracket (2) is used to mount the flexible container, the sliding seat (1) is connected to the conveying mechanism, and the transfer mechanism (7) is used to transfer the bracket (2) between the weighing mechanism (6) and the sliding seat (1), characterized in that: The bracket (2) is provided with a bag hanging pin (8) for fixing the flexible container, and the transfer mechanism (7) is provided with a positioning hole (9) that cooperates with the bag hanging pin (8).

10. A weighing system for a flexible container according to claim 9, characterized in that: The bracket (2) can be movably disassembled up and down on the sliding seat (1).

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