On-line weighing structure for eye drops

Abstract

The utility model discloses an eye drop on-line weighing structure, and particularly relates to the technical field of eye drop processing equipment, the eye drop on-line weighing structure comprises a base, the left part and the right part of the inner surface of the base are respectively provided with a feeding conveyor belt and a discharging conveyor belt, and the middle part of the inner surface of the base is fixedly connected with a weighing mechanism; the upper end of the weighing mechanism and the upper end of the base are jointly provided with two feeding mechanisms which are symmetrically distributed front and back, and the right side of the front end of the base is fixedly connected with a driving motor which is in transmission connection with the discharging conveying belt. According to the on-line weighing structure for the eye drops, the intermittent assembly and the feeding mechanism are matched to convey the eye drops to the position above the weighing table from the feeding conveying belt, the eye drops are weighed under the action of the weighing device and the weighing table, weighing data are transmitted to the communication terminal to be sent to the background, and after weighing is completed, the weighing data are sent to the background through the communication terminal. The intermittent assembly and the feeding mechanism cooperate with the weighing table to convey the weighed eye drops into the discharging conveying belt to be conveyed out, and sequential and continuous weighing is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of eye drop processing equipment, in particular to an eye drop online weighing structure. Background Art

[0002] In the pharmaceutical manufacturing industry, eye drops are a common ophthalmic medication, and accurate weighing of the liquid medicine is crucial during their production. Traditional weighing methods often suffer from low efficiency, complex operations, and low precision.

[0003] Chinese patent publication number CN217877935U discloses a device for automatic online weighing of liquid medicine, including a cylinder, a vertebral body installed at the bottom end of the cylinder, an internal threaded joint installed at the bottom end of the vertebral body, a rib plate installed on the outer wall of the cylinder, an ear plate installed at the top end of the rib plate, a weighing sensor installed at the bottom end of the ear plate, the weighing sensor installed at the top end of the disc, a first column installed at the bottom end of the disc, an adjusting screw installed at the bottom end of the first column, and a second column installed at the bottom end of the adjusting screw.

[0004] However, in actual use, the device provided in the above literature still cannot achieve sequential and continuous weighing of eye drops, lacks flexibility, and is difficult to adapt to weighing needs. Summary of the Invention

[0005] The main purpose of the utility model is to provide an online weighing structure for eye drops, which can effectively solve the problem that existing devices cannot weigh eye drops sequentially and continuously.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The online weighing structure of eye drops includes a base, and the left and right parts of the inner surface of the base are respectively provided with a feed conveyor and a discharge conveyor. A weighing mechanism is fixedly connected to the middle part of the inner surface of the base. The upper end of the weighing mechanism and the upper end of the base are jointly provided with two loading mechanisms symmetrically distributed front and back. A communication terminal connected to the weighing mechanism through a signal line is fixedly connected to the middle part of the rear end of the base. A drive motor connected to the discharge conveyor is fixedly connected to the right side of the front end of the base. The discharge conveyor is connected to the feed conveyor through a belt drive, and the weighing mechanism is connected to the feed conveyor through a belt drive.

[0008] Preferably, the weighing mechanism includes a weighing device fixedly connected to the bottom wall of the inner cavity of the base, a weighing platform is provided in the middle of the upper end of the weighing device, a limiting frame is fixedly connected around the weighing platform at the upper end of the weighing device, and intermittent components connected to the feed conveyor belt are symmetrically provided at the front and rear ends of the weighing device.

[0009] Preferably, the limit frame is rectangular and its inner edge on the side close to the feed conveyor is vertical, and the inner surface of the limit frame on the side close to the discharge conveyor is an inclined surface so that the weighing platform is smoothly connected to the upper end of the limit frame.

[0010] Preferably, the intermittent component includes two limit noses symmetrically distributed on the left and right and fixedly connected to the weighing device, the inner surfaces of the two limit noses are slidably connected to the limit rod one, and the ends of the two limit rods that are close to each other are commonly fixedly connected to a straight groove block, the end of the weighing device close to the connecting column is rotatably connected to a swing arm, the upper part of the end of the swing arm close to the straight groove block is fixedly connected to a connecting column that is slidably connected to the inner surface of the straight groove block, the swing arm is connected to the feed conveyor belt through a belt drive, and the front and rear two swing arms are connected through a transmission shaft.

[0011] Preferably, the feeding mechanism includes a U-shaped rod fixedly connected to the upper end of the connecting column on the same side, and limiting grooves are symmetrically opened on the front and rear ends of the upper end of the base. The two limiting grooves are W-shaped with openings facing each other, and the distance between the center parts is greater than the distance between the left and right sides. The end of the U-shaped rod close to the weighing platform is provided with a clamping assembly that is slidably connected to the inner surface of the limiting groove on the same side, and limiting assemblies are provided on both sides of the end of the U-shaped rod close to the weighing platform.

[0012] Preferably, the feeding mechanism further comprises two limit rods which are symmetrically distributed on the left and right sides and fixedly connected to the left and right ends of the U-shaped rod, and one end of the limit rod close to the weighing platform is linearly distributed and rotatably connected to a plurality of rollers.

[0013] Preferably, the clamping assembly includes a driven rod slidably connected to the inner surface of the limiting groove on the same side, the end of the driven rod close to the U-shaped rod passes through the proximal end of the U-shaped rod and extends to the end of the U-shaped rod close to the weighing platform and is slidably connected to the sliding rod, the end of the sliding rod away from the driven rod is fixedly connected to a rubber plate, and the end of the rubber plate close to the U-shaped rod is symmetrically fixedly connected to a limiting rod three slidably connected to the U-shaped rod, and the outer surfaces of the limiting rod three and the sliding rod are both provided with a compression spring fixedly connected to the opposite end of the U-shaped rod and the rubber plate.

[0014] Preferably, the limiting assembly includes a rotating rod rotatably connected to the U-shaped rod, and a limiting block fixedly connected to the adjacent surface of the U-shaped rod is provided at one end of the rotating rod close to the feed conveyor belt, and the limiting block and the U-shaped rod are jointly fixedly connected with an elastic rope.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The utility model transports eye drops from the feed conveyor belt to the top of the weighing platform through the cooperation of the intermittent component and the feeding mechanism, weighs the eye drops using the scale and the weighing platform, and transmits the weighing data to the communication terminal and sends it to the background. After the weighing is completed, the intermittent component and the feeding mechanism cooperate with the weighing platform to send the weighed eye drops to the discharge conveyor belt for transportation, thereby realizing sequential and continuous weighing.

[0017] 2. The utility model uses the cooperation of the clamping assembly installed on the U-shaped rod and the roller and the action of the limit assembly to send the eye drops on the feed conveyor belt to the top of the weighing platform, and through the action of the limit frame, during the process of weighing and connecting the next bucket of eye drops, the weighed eye drops are sent to the discharge conveyor belt for delivery, thereby realizing continuous weighing.

[0018] 3. The utility model utilizes the cooperation of the clamping assembly and the limiting groove to clamp and position the eye drops during the transportation process, thereby preventing the eye drops from deflecting and shaking during transportation, ensuring the stability of transportation, and reducing weighing errors. At the same time, the unidirectional action of the limiting assembly is utilized to realize unidirectional entry and unidirectional delivery, thereby realizing sequential weighing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a structural diagram of the weighing mechanism of the utility model;

[0021] Figure 3 This is a schematic diagram of the shape of the limit frame of the utility model;

[0022] Figure 4 This is a schematic structural diagram of the intermittent component of the present invention;

[0023] Figure 5 This is a schematic structural diagram of the clamping assembly and the limiting assembly of the present utility model;

[0024] Figure 6 It is a schematic diagram of the explosion effect of the clamping assembly and the limiting assembly of the utility model.

[0025] In the figure: 1. base; 2. feed conveyor belt; 3. discharge conveyor belt; 4. drive motor; 5. communication terminal; 6. weighing mechanism; 61. weighing device; 62. weighing platform; 63. intermittent assembly; 631. connecting column; 632. swing arm; 633. straight groove block; 634. limit rod 1; 635. limit nose; 64. limit frame; 7. feeding mechanism; 71. U-shaped rod; 72. limit rod 2; 73. clamping assembly; 731. driven rod; 732. limit rod 3; 733. sliding rod; 734. compression spring; 735. rubber plate; 74. limit assembly; 741. rotating rod; 742. limit block; 743. elastic rope; 75. roller; 76. limit slot. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] Example 1, as Figure 1 As shown in Figure *, the online weighing structure of eye drops includes a base 1, and the left and right parts of the inner surface of the base 1 are respectively provided with a feed conveyor 2 and a discharge conveyor 3, a weighing mechanism 6 is fixedly connected to the middle part of the inner surface of the base 1, and the upper end of the weighing mechanism 6 and the upper end of the base 1 are jointly provided with two feeding mechanisms 7 symmetrically distributed front and back, a communication terminal 5 connected to the weighing mechanism 6 through a signal line is fixedly connected to the middle part of the rear end of the base 1, a drive motor 4 connected to the discharge conveyor 3 is fixedly connected to the right side of the front end of the base 1, the discharge conveyor 3 is connected to the feed conveyor 2 through a belt drive, and the weighing mechanism 6 is connected to the feed conveyor 2 through a belt drive.

[0028] The driving motor 4 is used to drive the feed conveyor belt 2 and the discharge conveyor belt 3 to operate. The conveying direction of the feed conveyor belt 2 and the discharge conveyor belt 3 is from left to right, and the connection between them and the weighing mechanism 6 is provided with a connecting block covering the arc surface part of the feed conveyor belt 2 and the discharge conveyor belt 3, which is used to guide the eye drop barrel to smoothly enter the weighing mechanism 6.

[0029] Further, to achieve the weighing of eye drops, see Figure 2 and Figure 3 The weighing mechanism 6 includes a weighing device 61 fixedly connected to the bottom wall of the inner cavity of the base 1, a weighing platform 62 is provided in the middle of the upper end of the weighing device 61, and a limit frame 64 is fixedly connected to the upper end of the weighing device 61 around the weighing platform 62. The front and rear ends of the weighing device 61 are symmetrically provided with intermittent components 63 that are transmission-connected to the feed conveyor belt 2.

[0030] It should be noted that the weighing device 61 is a conventional device for weighing, and its structure is similar to the electronic scale commonly used in life. The object to be weighed can be placed on the weighing platform 62 for weighing. This structure has been widely used in the prior art. In the present utility model, only the weighing function is realized by using it, and its internal structure, operating principle, wiring, and control method are not described in detail.

[0031] At the same time, the communication terminal 5 is a terminal for receiving the weighing data of the scale 61. A barcode scanner is provided at the front end thereof, which can read the QR code of the product on the eye drop barrel, so that the weighing data corresponding to the product is recorded in the communication terminal 5 and sent to the background database through the built-in communication module in the communication terminal 5. In the prior art, the communication terminal 5 is a mature technical means, which is similar to the cash register system of a supermarket and has been widely used in the modern technology field. In this utility model, its internal structure, operating principle and specific wiring and connection methods are no longer displayed or elaborated.

[0032] During the operation of this embodiment, the eye drops are transported from the feed conveyor belt 2 to the top of the weighing platform 62 through the cooperation of the intermittent component 63 and the feeding mechanism 7, and are weighed by the weighing device 61 and the weighing platform 62, and the weighing data are transmitted to the communication terminal 5 and sent to the background. After the weighing is completed, the intermittent component 63 and the feeding mechanism 7 cooperate with the weighing platform 62 to send the weighed eye drops to the discharge conveyor belt 3 for transportation, thereby realizing sequential and continuous weighing.

[0033] Example 2. Based on Example 1, this example delivers the eye drops on the feed conveyor belt 2 to the top of the weighing platform 62 through the cooperation of the clamping assembly 73 installed on the U-shaped rod 71 and the roller 75 and the action of the limiting assembly 74. In the process of weighing and connecting the next bucket of eye drops, the eye drops that have been weighed are sent to the discharge conveyor belt 3 and sent out through the action of the limiting frame 64, thereby realizing continuous weighing.

[0034] Specifically, in order to realize the intermittent driving of the feeding mechanism 7 so as to deliver the eye drops to the top of the weighing platform 62, refer to Figure 4 The intermittent component 63 includes two limit noses 635 symmetrically distributed on the left and right and fixedly connected to the weighing device 61. The inner surfaces of the two limit noses 635 are slidably connected to the limit rod 634. The ends of the two limit rods 634 close to each other are fixedly connected to the straight groove block 633. The end of the weighing device 61 close to the connecting column 631 is rotatably connected to the swing arm 632. The upper part of the end of the swing arm 632 close to the straight groove block 633 is fixedly connected to the connecting column 631 that is slidably connected to the inner surface of the straight groove block 633. The swing arm 632 is connected to the feed conveyor belt 2 through a belt drive, and the front and rear swing arms 632 are connected through a transmission shaft.

[0035] The swing arm 632 is connected to the feed conveyor belt 2 by transmission, and will rotate along with the rotation of the feed conveyor belt 2. During the rotation of the swing arm 632, the connecting column 631 will slide in the straight groove block 633. Since the positions of the connecting column 631 and the straight groove block 633 are relatively eccentric, and due to the limitation of the limiting rod 1 634 and the limiting nose 635, during the rotation of the connecting column 631 following the swing arm 632, the straight groove block 633 will be driven to move left and right in the direction of the limiting rod 1 634, thereby driving the feeding mechanism 7 to move left and right.

[0036] Furthermore, in order to intermittently deliver the eye drops to the top of the weighing platform 62 according to the operating frequency of the intermittent component 63, see Figure 4 The feeding mechanism 7 includes a U-shaped rod 71 fixedly connected to the upper end of the connecting column 631 on the same side. A limiting groove 76 is symmetrically provided on the front and rear ends of the upper end of the base 1. The two limiting grooves 76 are W-shaped with openings facing each other. The distance between the center parts is greater than the distance between the left and right sides. The end of the U-shaped rod 71 close to the weighing platform 62 is provided with a clamping component 73 that is slidably connected to the inner surface of the limiting groove 76 on the same side. The U-shaped rod 71 close to the weighing platform 62 is provided with a limiting component 74 on both sides of the left and right sides.

[0037] Further, to achieve one-way in and one-way out, refer to Figure 3 The limit frame 64 is rectangular and its inner edge close to the feed conveyor belt 2 is vertical. The inner surface of the limit frame 64 close to the discharge conveyor belt 3 is an inclined surface so that the weighing platform 62 is smoothly connected to the upper end of the limit frame 64.

[0038] When the U-shaped rod 71 follows the straight groove block 633 in the process of running, the clamping assembly 73 is in an inward clamping state on both sides of the weighing device 61 due to the limiting action of the limiting groove 76. When the U-shaped rod 71 moves toward the feeding conveyor belt 2, the limiting assembly 74 first contacts the eye drop barrel and rotates under force until the eye drop barrel enters the U-shaped rod 71 on both sides. At this time, the clamping assembly 73 clamps the eye drop barrel under the action of the limiting groove 76, and the U-shaped rod 71 moves toward the discharge conveyor belt 3 under the action of the straight groove block 633. Since the rotation of the limiting assembly 74 is unidirectional, the eye drop barrel will be driven into the range of the weighing platform 62, and the eye drop barrel will fall from the vertical side of the limiting frame 64 to above the weighing platform 62;

[0039] When the straight slot block 633 moves to the middle of the weighing device 61, the clamping assembly 73 releases the eye drop barrel under the action of the limiting slot 76, and the eye drop barrel falls completely on the weighing platform 62 for weighing;

[0040] After weighing is completed, the straight groove block 633 continues to move toward the discharge conveyor 3 under the action of the connecting column 631. At this time, under the action of the limit groove 76, the clamping assembly 73 continues to clamp the eye drop barrel, driving it along the slope of the limit frame 64 into the discharge conveyor 3 and loosening it. At this time, the U-shaped rod 71 moves toward the feed conveyor 2 under the action of the straight groove block 633, and the limit assembly 74 on the right side rotates to make the eye drop barrel leave the range of action of the U-shaped rod 71 under the action of the discharge conveyor 3. The U-shaped rod 71 continues to move toward the feed conveyor 2 for the next round of loading and weighing.

[0041] Example 3: Based on Example 2, this example further utilizes the cooperation between the clamping component 73 and the limiting groove 76 to clamp and position the eye drops during transportation, so as to avoid the eye drops from shifting and shaking during transportation, ensure the stability of transportation, and reduce weighing errors. At the same time, the unidirectional action of the limiting component 74 is utilized to realize unidirectional entry and unidirectional delivery, thereby realizing sequential weighing.

[0042] For details, see Figure 4 and Figure 5 The feeding mechanism 7 also includes a second limiting rod 72 symmetrically distributed on the left and right sides and fixedly connected to the left and right ends of the U-shaped rod 71. One end of the second limiting rod 72 close to the weighing platform 62 is linearly distributed and rotatably connected to a plurality of rollers 75.

[0043] The second limiting rod 72 is used to limit the position of the eye drop barrel on the feed conveyor 2 or the discharge conveyor 3 on the left and right sides of the weighing mechanism 6 to prevent its excessive deviation from affecting the material connection effect of the limiting component 74 and the clamping component 73.

[0044] For further information, see Figure 5 and Figure 6 The clamping assembly 73 includes a driven rod 731 that is slidably connected to the inner surface of the limiting groove 76 on the same side. The end of the driven rod 731 close to the U-shaped rod 71 passes through the proximate end of the U-shaped rod 71 and extends to the end of the U-shaped rod 71 close to the weighing platform 62 and is slidably connected to the sliding rod 733. The end of the sliding rod 733 away from the driven rod 731 is fixedly connected to the rubber plate 735. The end of the rubber plate 735 close to the U-shaped rod 71 is symmetrically fixedly connected to the limiting rod three 732 that is slidably connected to the U-shaped rod 71. The outer surfaces of the limiting rod three 732 and the sliding rod 733 are both provided with a compression spring 734 fixedly connected to the opposite end of the U-shaped rod 71 and the rubber plate 735.

[0045] When the limiting groove 76 enters the part with smaller spacing, the driven rods 731 on both sides approach each other, and the compression spring 734 presses the rubber plate 735 to make it close to the eye drop barrel and gradually clamp it on the surface of the eye drop barrel. Due to the presence of the compression spring 734, this clamping has a margin, which can prevent the material from falling off during the carrying process. At the same time, the driven rod 731 can continue to follow the path change of the limiting groove 76;

[0046] When it is within the range of the feed conveyor belt 2, due to the approach of the driven rod 731, the rubber plate 735 contacts the surface of the eye drop barrel, and under the continuous pressure of the compression spring 734 and the friction of the rubber plate 735, the eye drop barrel is transported toward the weighing platform 62. When it is within the range of the discharge conveyor belt 3, since the discharge conveyor belt 3 is continuously running, when the rubber plate 735 leaves the surface of the eye drop barrel, the eye drop barrel will be sent away by the discharge conveyor belt 3.

[0047] Further, to achieve one-way feeding, see Figure 5 and Figure 6 The limiting assembly 74 includes a rotating rod 741 rotatably connected to the U-shaped rod 71. A limiting block 742 fixedly connected to the adjacent surface of the U-shaped rod 71 is provided at one end of the rotating rod 741 close to the feed conveyor belt 2. The limiting block 742 and the U-shaped rod 71 are jointly fixedly connected with an elastic rope 743.

[0048] The rotating rod 741 can only rotate in the direction of the discharge conveyor belt 3, that is, when the U-shaped rod 71 enters the range of the feed conveyor belt 2, the rotating rod 741 rotates to make the eye drop barrel enter between the U-shaped rods 71 ​​on both sides. When the U-shaped rod 71 is within the range of the discharge conveyor belt 3, the eye drop barrel can drive the rotating rod 741 to rotate under the action of the discharge conveyor belt 3, thereby leaving the range of the U-shaped rod 71, realizing one-way entry and exit.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An online weighing structure for eye drops, comprising a base (1), characterized in that: The left and right inner surfaces of the base (1) are respectively provided with a feed conveyor belt (2) and a discharge conveyor belt (3); a weighing mechanism (6) is fixedly connected to the middle inner surface of the base (1); the upper ends of the weighing mechanism (6) and the upper end of the base (1) are jointly provided with two feeding mechanisms (7) symmetrically distributed front and back; a communication terminal (5) connected to the weighing mechanism (6) via a signal line is fixedly connected to the middle rear end of the base (1); a driving motor (4) connected to the discharge conveyor belt (3) is fixedly connected to the right front end of the base (1); the discharge conveyor belt (3) is connected to the feed conveyor belt (2) via a belt transmission; and the weighing mechanism (6) is connected to the feed conveyor belt (2) via a belt transmission.

2. The eye drop online weighing structure according to claim 1, characterized in that: The weighing mechanism (6) includes a weighing device (61) fixedly connected to the bottom wall of the inner cavity of the base (1), a weighing platform (62) is provided in the middle of the upper end of the weighing device (61), a limit frame (64) is fixedly connected to the upper end of the weighing device (61) around the weighing platform (62), and intermittent components (63) connected to the feed conveyor belt (2) are symmetrically provided at the front and rear ends of the weighing device (61).

3. The eye drop online weighing structure according to claim 2, characterized in that: The limit frame (64) is rectangular, and the inner edge of the side close to the feed conveyor (2) is in a vertical state. The inner surface of the limit frame (64) close to the side of the discharge conveyor (3) is an inclined surface so that the weighing platform (62) is smoothly connected to the upper end of the limit frame (64).

4. The eye drop online weighing structure according to claim 2, characterized in that: The intermittent component (63) includes two limit noses (635) symmetrically distributed on the left and right and fixedly connected to the weighing device (61), the inner surfaces of the two limit noses (635) are slidably connected to the limit rod (634), and the ends of the two limit rods (634) close to each other are fixedly connected to the straight groove block (633). The end of the weighing device (61) close to the connecting column (631) is rotatably connected to the swing arm (632), and the upper part of the end of the swing arm (632) close to the straight groove block (633) is fixedly connected to the connecting column (631) slidably connected to the inner surface of the straight groove block (633). The swing arm (632) is connected to the feed conveyor belt (2) through a belt drive, and the front and rear two swing arms (632) are connected through a transmission shaft.

5. The eye drop online weighing structure according to claim 4, characterized in that: The feeding mechanism (7) includes a U-shaped rod (71) fixedly connected to the upper end of the connecting column (631) on the same side, and a limiting groove (76) is symmetrically provided on the front and rear ends of the upper end of the base (1). The two limiting grooves (76) are W-shaped with openings facing each other, and the distance between the center parts is larger than the distance between the left and right sides. The end of the U-shaped rod (71) close to the weighing platform (62) is provided with a clamping component (73) slidably connected to the inner surface of the limiting groove (76) on the same side, and the end of the U-shaped rod (71) close to the weighing platform (62) is provided with a limiting component (74) on both sides.

6. The eye drop online weighing structure according to claim 5, characterized in that: The feeding mechanism (7) further comprises a second limiting rod (72) symmetrically distributed on the left and right sides and fixedly connected to the left and right ends of the U-shaped rod (71); one end of the second limiting rod (72) close to the weighing platform (62) is linearly distributed and rotatably connected to a plurality of rollers (75).

7. The eye drop online weighing structure according to claim 5, characterized in that: The clamping assembly (73) includes a driven rod (731) slidably connected to the inner surface of the limiting groove (76) on the same side. The end of the driven rod (731) close to the U-shaped rod (71) passes through the end of the U-shaped rod (71) close to the weighing platform (62) and is slidably connected to the sliding rod (733). The end of the sliding rod (733) away from the driven rod (731) is fixedly connected to a rubber plate (735). The end of the rubber plate (735) close to the U-shaped rod (71) is symmetrically fixedly connected to a limiting rod (732) slidably connected to the U-shaped rod (71). The outer surfaces of the limiting rod (732) and the sliding rod (733) are both sleeved with a compression spring (734) fixedly connected to the opposite end of the U-shaped rod (71) and the rubber plate (735).

8. The eye drop online weighing structure according to claim 5, characterized in that: The limiting assembly (74) comprises a rotating rod (741) rotatably connected to the U-shaped rod (71); an end of the rotating rod (741) close to the feed conveyor belt (2) is provided with a limiting block (742) fixedly connected to the adjacent surface of the U-shaped rod (71); the limiting block (742) and the U-shaped rod (71) are fixedly connected together with an elastic rope (743).

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