Medicine sealing device

Abstract

The utility model relates to the technical field of aluminum foil sealing machines, and discloses a medicine sealing device which comprises a conveying mechanism, a sealing mechanism and a limiting mechanism. The sealing mechanism comprises an electromagnetic induction sealing head, and the electromagnetic induction sealing head is located above the conveying belt and is aligned with the conveying surface; the limiting mechanism comprises two limiting pieces; the two limiting pieces are oppositely arranged; each limiting piece comprises a plurality of rolling parts, and each rolling part can rotate around the axis of the rolling part; the axis of the rolling part is perpendicular to the conveying face. According to the medicine sealing device disclosed by the utility model, the rotatable rolling parts are additionally arranged on the limiting pieces for limiting the to-be-sealed part, so that when the to-be-sealed part moves under the action of the conveying belt, rolling friction exists between the to-be-sealed part and the rolling parts of the limiting pieces; by means of the mode, friction force between the to-be-sealed component and the limiting pieces can be reduced, and therefore the to-be-sealed component can be reliably conveyed through the conveying belt.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum foil sealing machines, and more specifically, to a medicine sealing device. Background Art

[0002] The content of this part only provides background information related to the utility model, which may not constitute prior art.

[0003] At the present stage, for general bottled medicines, an aluminum foil sealing machine is usually used to fuse an aluminum foil sheet at the bottle mouth of the medicine bottle so that the medicines in the medicine bottle can be reliably stored.

[0004] Common aluminum foil sealing machines generally include a conveyor belt for conveying medicine bottles and an electromagnetic induction sealing head for achieving sealing. Moreover, in order to enable the medicine bottles conveyed by the conveyor belt to be accurately aligned with the electromagnetic induction sealing head when passing through the electromagnetic induction sealing head, a limiting mechanism for limiting the medicine bottles on the conveyor belt can also be provided for common aluminum foil sealing machines. Among them, such an aluminum foil sealing machine with a limiting mechanism can refer to an aluminum foil sealing machine for medicine production with good dust-proof effect disclosed in the patent document with the application number 2022212294487.

[0005] However, the limiting mechanisms generally adopted by the known aluminum foil sealing machines with limiting mechanisms are generally limiting columns or limiting plates oppositely arranged along the conveying direction of the conveyor belt. For such a limiting mechanism, when the conveyor belt conveys the medicine bottles, the limiting columns or limiting plates will always contact the outer circumferential wall of the medicine bottles. At this time, a large frictional force that hinders the synchronous movement of the medicine bottles with the conveyor belt will be generated between the limiting columns and the medicine bottles, which is not conducive to the reliable conveyance of the medicine bottles by the conveyor belt. Summary of the Utility Model

[0006] In view of this, the purpose of the utility model is to provide a medicine sealing device, hoping to reduce the frictional force between the parts to be sealed (such as medicine bottles to be sealed) conveyed by the conveyor belt and the limiting members of the limiting mechanism, so that the conveyor belt can reliably convey the parts to be sealed to complete the sealing of the parts to be sealed.

[0007] The purpose of the utility model is achieved through the following technical solutions:

[0008] The utility model discloses a medicine sealing device, including:

[0009] A conveying mechanism, including a conveyor belt having a conveying surface;

[0010] A sealing mechanism, including an electromagnetic induction sealing head; the electromagnetic induction sealing head is located above the conveyor belt and is aligned with the conveying surface;

[0011] The limiting mechanism includes two limiting members; the two limiting members are arranged oppositely to form a limiting channel extending along the conveying path of the conveyor belt between the two limiting members, and the limiting channel is located between the conveying surface and the electromagnetic induction sealing head;

[0012] Each of the limiting members includes a plurality of rolling parts, the plurality of rolling parts are arranged in sequence along the extending direction of the limiting channel, and each of the rolling parts can rotate around its own axis; wherein, the axis of the rolling part is perpendicular to the conveying surface.

[0013] Furthermore, the limiting mechanism further includes a limiting linear driver, and the limiting linear driver is used to drive the two limiting members to approach or separate from each other.

[0014] Furthermore, each of the limiting members further includes a mounting bracket, and the plurality of rolling parts of each of the limiting members are arranged in sequence on their respective mounting brackets along the extending direction of the limiting channel;

[0015] The limiting linear driver is a double-acting cylinder, and the two output ends of the double-acting cylinder are respectively connected to the mounting brackets of the two limiting members.

[0016] Furthermore, each of the limiting members further includes a connecting part, and the connecting part of each of the limiting members is connected to its respective mounting bracket;

[0017] The connecting parts of the two limiting members are respectively connected to the two output ends of the double-acting cylinder.

[0018] Furthermore, the conveying mechanism further includes a frame, and the conveyor belt is arranged on the frame;

[0019] The mounting bracket has two opposite ends in the extending direction of the limiting channel, and the two opposite ends of the mounting bracket are slidably connected to the frame.

[0020] Furthermore, the sealing mechanism further includes a sealing linear driver and a fine-tuning assembly, and the sealing linear driver is used to output a reciprocating linear motion in the vertical direction;

[0021] The fine-tuning assembly includes:

[0022] A fixed seat, arranged at the output end of the sealing linear driver;

[0023] A fine-tuning lead screw, rotatably arranged on the fixed seat and extending in the vertical direction;

[0024] A moving seat, configured to be slidable in the vertical direction; the moving seat is threadedly connected to the fine-tuning lead screw, and the moving seat is connected to the electromagnetic induction sealing head.

[0025] Further, sliding rails extending in the vertical direction are provided on opposite sides of the fixed seat, and opposite sides of the movable seat are respectively slidably connected to the corresponding sliding rails.

[0026] Further, the fine adjustment assembly further includes an operating part, and the operating part is drivingly connected to the fine adjustment lead screw.

[0027] Further, scale lines extending in the vertical direction are provided on the fixed seat, and the scale lines are matched with the movable seat.

[0028] Further, the sealing mechanism may further include at least one guide post, the guide post extends in the vertical direction and passes through the fixed seat, and the guide post is slidably fitted with the fixed seat.

[0029] The technical solution of the embodiment of the present utility model has at least the following advantages and beneficial effects:

[0030] 1. By adding a rotatable rolling part to the limiting part for limiting the part to be sealed in the medicine sealing device disclosed in the present utility model, when the part to be sealed moves under the action of the conveyor belt, the rolling friction exists between the part to be sealed and the rolling parts of the limiting parts. This method helps to reduce the friction force between the part to be sealed and the limiting parts, thereby facilitating the reliable conveyance of the part to be sealed by the conveyor belt.

[0031] 2. By adding a sealing linear driver and a fine adjustment assembly, the medicine sealing device disclosed in the present utility model can quickly and accurately adjust the electromagnetic induction sealing head for sealing to the target position in the vertical direction. Description of the Drawings

[0032] Figure 1 is a schematic structural view of the medicine sealing device provided by the embodiment of the present utility model;

[0033] Figure 2 is a schematic structural view of the conveying mechanism and the limiting mechanism provided by the embodiment of the present utility model;

[0034] Figure 3 is a schematic structural view of the limiting mechanism provided by the embodiment of the present utility model;

[0035] Figure 4 is a schematic structural view of a single limiting part provided by the embodiment of the present utility model;

[0036] Figure 5 is a schematic structural view of the sealing mechanism provided by the embodiment of the present utility model;

[0037] Figure 6 is a schematic structural view of the fine adjustment assembly and the electromagnetic induction sealing head provided by the embodiment of the present utility model.

[0038] Icons: 10 - conveying mechanism, 11 - frame, 12 - conveyor belt, 121 - conveying surface, 13 - conveying drive component, 14 - protective housing, 20 - sealing mechanism, 21 - electromagnetic induction sealing head, 22 - sealing linear drive, 23 - fine-tuning assembly, 231 - fixed seat, 232 - fine-tuning screw rod, 233 - moving seat, 234 - slide rail, 235 - operating part, 236 - scale line, 24 - guiding column, 30 - limiting mechanism, 31 - limiting part, 311 - mounting bracket, 312 - rolling part, 313 - connecting part, 32 - limiting channel, 33 - limiting linear drive, 40 - component to be sealed, 50 - console. Detailed implementation manners

[0039] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with the detailed implementation manners. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0040] Compared with the embodiments shown in the drawings, the feasible implementation solutions within the protection scope of the present utility model may have fewer components, have other components not shown in the drawings, different components, differently arranged components or differently connected components, etc. In addition, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0041] An embodiment of the present utility model discloses a medicine sealing device, especially an aluminum foil type sealing device that can fuse an aluminum foil sheet at the bottle mouth of a medicine bottle for bottling medicine to achieve sealing.

[0042] As Figure 1 shown, it shows a schematic structural diagram of an exemplary medicine sealing device disclosed in an embodiment of the present utility model. Generally, the medicine sealing device may include a conveying mechanism 10, a sealing mechanism 20 and a limiting mechanism 30.

[0043] In an embodiment of the present utility model, the conveying mechanism 10 is used to convey the component 40 to be sealed. Among them, the component 40 to be sealed may be a medicine bottle to be sealed. At the same time, the conveying mechanism 10 may be a belt conveyor.

[0044] Further, in combination with Figure 1 and Figure 2As shown in the figure, the conveying mechanism 10 may include a frame 11, a conveyor belt 12, and a conveying drive member 13. Among them, the conveyor belt 12 may be arranged on the frame 11, for example, on the top of the frame 11. The conveyor belt 12 has a conveying surface 121 adapted to carry the component 40 to be sealed. And, the conveyor belt 12 can move under the drive of the conveying drive member 13, so as to drive the component 40 to be sealed carried on the conveying surface 121 to move along a conveying path through the conveyor belt 12.

[0045] Among them, the conveying drive member 13 may include a driving roller (not shown in the figure), a driven roller (not shown in the figure), a conveying drive motor (not shown in the figure), and other components known in the prior art that constitute a belt conveyor. Among them, the driving roller and the driven roller are arranged oppositely, and the conveyor belt 12 is wound between the driving roller and the driven roller. The conveying drive motor is in transmission connection with the driving roller. For example, the conveying drive motor can be in transmission connection with the driving roller through a conventional belt drive mechanism, a chain drive mechanism and other drive mechanisms, so as to drive the driving roller to rotate through the conveying drive motor, and when the driving roller rotates, the conveyor belt 12 can continuously move around the driving roller and the driven roller to convey the component 40 to be sealed.

[0046] As Figure 2 shown, the conveying mechanism 10 may further include a protective housing 14 arranged at the bottom of the frame 11, and the conveying drive motor constituting the conveying drive member 13 may be arranged in the protective housing 14, so as to provide protection for the conveying drive motor through the protective housing 14, and help to optimize the structural design of the conveying mechanism 10 to improve the aesthetics of the entire medicine sealing device.

[0047] In the embodiment of the present invention, the sealing mechanism 20 is used to seal the component 40 to be sealed conveyed by the conveyor belt 12. Specifically, in combination with Figure 1 the content shown in the figure, the sealing mechanism 20 may include an electromagnetic induction sealing head 21, and the electromagnetic induction sealing head 21 is located above the conveyor belt 12 and is aligned with the conveying surface 121 of the conveyor belt 12.

[0048] In this way, when the conveyor belt 12 conveys the component 40 to be sealed to directly below the electromagnetic induction sealing head 21, the electromagnetic induction sealing head 21 can instantly generate high heat on the aluminum foil of the component 40 to be sealed, so that the aluminum foil fuses at the bottle mouth of the component 40 to be sealed to complete the sealing of the component 40 to be sealed. The component 40 to be sealed after sealing can continue to be conveyed by the conveyor belt 12 to the next station, so as to realize continuous sealing operation. It should be noted that since the electromagnetic induction sealing head 21 is not improved in the embodiment of the present invention, the technology of using the electromagnetic induction sealing head 21 for sealing can refer to the known aluminum foil sealing machine in the prior art, and will not be elaborated here.

[0049] In an embodiment of the present utility model, the limiting mechanism 30 is used to limit the to-be-sealed component 40 conveyed by the conveyor belt 12, so that when the to-be-sealed component 40 conveyed by the conveyor belt 12 reaches the position where the electromagnetic induction sealing head 21 is located, the to-be-sealed component 40 can be accurately aligned with the electromagnetic induction sealing head 21.

[0050] Specifically, with reference to Figure 1 and Figure 2 as shown, the limiting mechanism 30 may include two limiting members 31, and the two limiting members 31 are arranged oppositely to form a limiting channel 32 extending along the conveying path of the conveyor belt 12 between the two limiting members 31, and the limiting channel 32 is located between the conveying surface 121 of the conveyor belt 12 and the electromagnetic induction sealing head 21.

[0051] When actually using the medicine sealing device, the to-be-sealed component 40 can be sequentially placed in the limiting channel 32 formed by the two limiting members 31, and the to-be-sealed component 40 is carried on the conveying surface 121 of the conveyor belt 12, and the circumferential outer wall of a single to-be-sealed component 40 is simultaneously in contact with the two opposite side walls of the limiting channel 32 (that is, the side of each of the two limiting members 31 facing the limiting channel 32). In this way, when the conveyor belt 12 moves, the to-be-sealed component 40 can always remain in the limiting channel 32 under the limiting action of the two limiting members 31, so that the to-be-sealed component 40 can be accurately aligned with the electromagnetic induction sealing head 21 when it reaches the electromagnetic induction sealing head 21.

[0052] On this basis, in order to enable the conveyor belt 12 to reliably drive the to-be-sealed component 40 to move, with reference to Figure 4 as shown, each limiting member 31 may include a mounting bracket 311 and a plurality of rolling parts 312. Among them, the plurality of rolling parts 312 of each limiting member 31 are sequentially arranged on their respective mounting brackets 311 along the extending direction of the limiting channel 32, and each rolling part 312 can rotate around its own axis. Among them, the axis of the rolling part 312 is perpendicular to the conveying surface 121 of the conveyor belt 12. For example, the rolling part 312 may be a rolling roller movably arranged on the mounting bracket 311. Of course, in other embodiments of the present utility model, the rolling part 312 may also be other rollable forms. For example, the rolling part 312 may also be a ball.

[0053] At this time, with reference to Figure 2 or Figure 3 as shown, the sides of the plurality of rolling parts 312 of one of the limiting members 31 facing the limiting channel 32 together constitute one side wall of the limiting channel 32, and the sides of the plurality of rolling parts 312 of the other limiting member 31 facing the limiting channel 32 together constitute the other side wall of the limiting channel 32.

[0054] Based on this setting, when the component 40 to be sealed is placed in the limiting channel 32, it is the rolling parts 312 of the respective limiting members 31 that contact the circumferential outer wall of the component 40 to be sealed. Thus, when the conveyor belt 12 drives the component 40 to be sealed to move within the limiting channel 32, since the rolling parts 312 of the respective limiting members 31 can rotate freely, the friction between the component 40 to be sealed and the rolling parts 312 of the respective limiting members 31 can be regarded as rolling friction. This method helps to reduce the frictional force between the component 40 to be sealed and the respective limiting members 31, thereby facilitating the reliable driving of the component 40 to be sealed by the conveyor belt 12 to move to the electromagnetic induction sealing head 21 for sealing.

[0055] Furthermore, considering that in practical applications, there are often various components 40 to be sealed with different specifications, and components 40 to be sealed with different specifications often have different diameters. Therefore, in order to improve the flexibility of the limiting mechanism 30 during use, in combination with Figure 3 the content shown, the limiting mechanism 30 may further include a limiting linear actuator 33. Among them, the limiting linear actuator 33 is used to drive the two limiting members 31 to approach or separate from each other.

[0056] Thus, based on the fact that the two limiting members 31 can approach or separate from each other under the drive of the limiting linear actuator 33, the distance between the two limiting members 31 can be adjusted according to the diameter of the component 40 to be sealed, so as to change the size of the limiting channel 32 formed between the two limiting members 31, enabling the limiting channel 32 to better match the component 40 to be sealed.

[0057] Among them, the limiting linear actuator 33 can be a double-acting cylinder capable of outputting a two-way linear motion to simplify the structure of the limiting mechanism 30 as much as possible. Among them, the two output ends of the double-acting cylinder are respectively connected to the mounting brackets 311 of the two limiting members 31, so as to facilitate the driving of the two limiting members 31 to approach or separate from each other when the double-acting cylinder works. At the same time, with reference to Figure 2 the content shown, the double-acting cylinder can be arranged on the frame 11 below the conveyor belt 12 to optimize the structural design of the entire medicine sealing device.

[0058] It can be understood that in order to facilitate the connection between the respective limiting members 31 and the output ends of the double-acting cylinder, the respective limiting members 31 may further include connecting parts 313. Among them, in combination with Figure 3 and Figure 4As shown in the figure, the connecting portion 313 of each limiting member 31 can be connected to its respective mounting bracket 311, and the connection position can be located in the middle of the limiting member 31, so as to improve the stability of each limiting member 31 when moving under the drive of the limiting linear actuator 33. At the same time, the connecting portions 313 of the two limiting members 31 are respectively connected to the two output ends of the double-acting cylinder. In this way, when the double-acting cylinder serving as the limiting linear actuator 33 acts, the two limiting members 31 can approach or move away from each other.

[0059] Furthermore, referring to Figure 2 As shown in the figure, each mounting bracket 311 of the limiting members 31 has two opposite ends in the extending direction of the limiting channel 32, and the two opposite ends of each mounting bracket 311 of the limiting members 31 can be slidably connected to the frame 11, so that the two limiting members 31 can approach or move away from each other in a sliding manner, thereby further improving the stability of each limiting member 31 when moving under the drive of the limiting linear actuator 33.

[0060] In the embodiment of the present invention, as described above, in addition to the difference in diameter, the height of the parts 40 to be sealed may also be different for different specifications. Therefore, it can be considered to set the electromagnetic induction sealer head 21 to be able to reciprocate in the vertical direction (that is, the direction perpendicular to the conveying surface 121 of the conveyor belt 12), so as to adjust the distance between the electromagnetic induction sealer head 21 and the conveying surface 121 according to the height of the parts 40 to be sealed.

[0061] However, the known aluminum foil sealing machines in the prior art generally use a lead screw nut linear mechanism to directly drive the electromagnetic induction sealer head 21 to move in the vertical direction. In this way, although the position of the electromagnetic induction sealer head 21 in the vertical direction can be adjusted, when the position span that the electromagnetic induction sealer head 21 needs to be adjusted in the vertical direction is relatively large (for example, when the electromagnetic induction sealer head 21 needs to be adjusted to the upper limit position for maintenance, or when the electromagnetic induction sealer head 21 at the upper limit position moves to the working position close to the lower limit position), there is a problem of slow adjustment process.

[0062] Therefore, the embodiment of the present invention further improves the structure of the sealing mechanism 20, in order to quickly and accurately adjust the electromagnetic induction sealer head 21 to the target position in the vertical direction.

[0063] Specifically, in combination with Figure 5As shown in the figure, the sealing mechanism 20 may further include a sealing linear driver 22 and a fine-tuning component 23. Among them, the sealing linear driver 22 is used to output a reciprocating linear motion in the vertical direction. For example, the sealing linear driver 22 may be a conventional linear driver such as a cylinder, a hydraulic cylinder or an electric push rod. Among them, the sealing linear driver 22 can quickly adjust the position of the electromagnetic induction sealing head 21 in the vertical direction.

[0064] The fine-tuning component 23 is used to finely adjust the position of the electromagnetic induction sealing head 21 in the vertical direction, so that the electromagnetic induction sealing head 21 can accurately reach the target position. As Figure 6 shown, the fine-tuning component 23 may include a fixed seat 231, a fine-tuning lead screw 232 and a moving seat 233.

[0065] Combined with Figure 5 and Figure 6 As shown in the figure, the fixed seat 231 may be arranged at the output end of the sealing linear driver 22 to drive the fixed seat 231 to perform a reciprocating linear motion in the vertical direction through the sealing linear driver 22. Further, the sealing mechanism 20 may further include at least one fixedly arranged guide post 24. The guide post 24 extends in the vertical direction and passes through the fixed seat 231, and the guide post 24 is slidably matched with the fixed seat 231. Through the arrangement of the guide post 24, the fixed seat 231 can be limited and guided by the guide post 24, so as to improve the stability of the fixed seat 231 when moving in the vertical direction under the drive of the sealing linear driver 22. By way of example, the figures of the present utility model show a case where two guide posts 24 are provided, and the two guide posts 24 are arranged oppositely.

[0066] The fine-tuning lead screw 232 is rotatably arranged on the fixed seat 231 and extends in the vertical direction. The moving seat 233 is configured to be able to reciprocate slidably in the vertical direction, and the moving seat 233 is threadedly connected to the fine-tuning lead screw 232, that is, the fine-tuning lead screw 232 passes through the moving seat 233 and is threadedly connected to the moving seat 233. At the same time, the moving seat 233 is also connected to the electromagnetic induction sealing head 21. In this way, when the fine-tuning lead screw 232 rotates, the moving seat 233 can be made to move in the vertical direction, and then the electromagnetic induction sealing head 21 can be driven to move in the vertical direction through the moving seat 233. It should be noted that the linear drive mechanism composed of the fixed seat 231, the fine-tuning lead screw 232 and the moving seat 233 can finely adjust the position of the electromagnetic induction sealing head 21 in the vertical direction and can effectively improve the accuracy when finely adjusting the position of the electromagnetic induction sealing head 21 in the vertical direction.

[0067] Based on the above settings, when the drug sealing device is actually used, if it is necessary to adjust the position of the electromagnetic induction seal 21 with a large span in the vertical direction, the sealing linear driver 22 can be used to drive the fixed seat 231 to move quickly in the vertical direction, so as to drive the moving seat 233 and the electromagnetic induction seal 21 to quickly reach the desired target position of the electromagnetic induction seal 21 through the fixed seat 231. After the electromagnetic induction seal 21 reaches the target position, the sealing linear driver 22 stops, and then the fine-tuning screw 232 can be operated to rotate, so as to drive the electromagnetic induction seal 21 to move in a small range in the vertical direction through the moving seat 233, thereby realizing fine-tuning the position of the electromagnetic induction seal 21 in the vertical direction, so that the electromagnetic induction seal 21 can accurately reach the desired target position.

[0068] Further, such as Figure 6 As shown, two opposite sides of the fixed seat 231 can be provided with slide rails 234 extending in the vertical direction, and two opposite sides of the moving seat 233 are respectively slidably connected to the corresponding slide rails 234 to achieve sliding cooperation between the moving seat 233 and the fixed seat 231, and this method is conducive to making the force of the moving seat 233 more balanced, thereby improving the stability of the moving seat 233 when moving in the vertical direction. Among them, the fine-tuning screw rod 232 can be located between the slide rails 234 on both sides of the fixed seat 231, for example, in the middle of the fixed seat 231.

[0069] Furthermore, the fine-tuning assembly 23 may further include an operating portion 235 that is transmission-connected to the fine-tuning screw 232, so as to operate the fine-tuning screw 232 to rotate. The operating portion 235 may be as follows: Figure 6 The hand wheel shown is arranged at the end (eg, the top end) of the fine-tuning screw rod 232 .

[0070] Furthermore, the fixing base 231 may be provided with Figure 6 The scale line 236 extending in the vertical direction is shown, and the scale line 236 matches the movable seat 233. It can be understood that the setting of the scale line 236 helps to further accurately adjust the position of the movable seat 233 in the vertical direction in combination with the scale line 236, thereby facilitating more accurate fine-tuning of the position of the electromagnetic induction head 21 in the vertical direction.

[0071] In the embodiment of the present utility model, combined with Figure 1 As shown, the drug sealing device may further include a control console 50, wherein the aforementioned electrical components such as the conveying drive motor, the electromagnetic induction head 21, the sealing linear drive 22 and the limiting linear drive 33 may all be communicatively connected to the control console 50, so that an operator using the drug sealing device may control the operation of related electrical components with the aid of the control console 50.

[0072] These are only preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A medicine sealing device, characterized in that: include: A conveying mechanism, comprising a conveying belt having a conveying surface; The sealing mechanism comprises an electromagnetic induction sealing head; the electromagnetic induction sealing head is located above the conveyor belt and aligned with the conveyor surface; The limiting mechanism comprises two limiting members; the two limiting members are arranged opposite to each other to form a limiting channel extending along the conveying path of the conveyor belt between the two limiting members, and the limiting channel is located between the conveying surface and the electromagnetic induction head; Each of the limiting members includes a plurality of rolling parts, which are sequentially arranged along the extension direction of the limiting channel, and each of the rolling parts can rotate around its own axis; wherein the axis of the rolling part is perpendicular to the conveying surface.

2. The medicine sealing device according to claim 1, characterized in that: The limiting mechanism also includes a limiting linear driver, which is used to drive the two limiting members to move closer to or farther away from each other.

3. The medicine sealing device according to claim 2, characterized in that: Each of the position-limiting members further comprises a mounting bracket, and the plurality of rolling parts of each of the position-limiting members are sequentially arranged on the respective mounting brackets along the extending direction of the position-limiting channel; The position-limiting linear actuator is a bidirectional cylinder, and the two output ends of the bidirectional cylinder are respectively connected to the mounting brackets of the two position-limiting members.

4. The medicine sealing device according to claim 3, characterized in that: Each of the position-limiting members further comprises a connecting portion, and the connecting portion of each of the position-limiting members is connected to the respective mounting bracket; The connecting parts of the two limiting members are respectively connected to the two output ends of the bidirectional cylinder.

5. The medicine sealing device according to claim 3, characterized in that: The conveying mechanism further comprises a frame, and the conveying belt is arranged on the frame; The mounting bracket has two opposite ends in the extending direction of the limiting channel, and the opposite ends of the mounting bracket are slidably connected to the frame.

6. The medicine sealing device according to claim 1, characterized in that: The sealing mechanism also includes a sealing linear drive and a fine-tuning component, wherein the sealing linear drive is used to output a reciprocating linear motion along a vertical direction; The fine-tuning component comprises: A fixing seat, arranged at the output end of the sealing linear actuator; A fine-tuning screw rod is rotatably disposed on the fixing seat and extends in a vertical direction; The movable seat is configured to be slidable in a vertical direction; the movable seat is threadedly connected to the fine-tuning screw, and the movable seat is connected to the electromagnetic induction head.

7. The medicine sealing device according to claim 6, characterized in that: The two opposite sides of the fixed seat are provided with slide rails extending in the vertical direction, and the two opposite sides of the movable seat are respectively slidably connected to the corresponding slide rails.

8. The medicine sealing device according to claim 6, characterized in that: The fine-tuning assembly also includes an operating portion, which is transmission-connected to the fine-tuning screw rod.

9. The medicine sealing device according to claim 6, characterized in that: The fixed seat is provided with scale lines extending in the vertical direction, and the scale lines match the movable seat.

10. The medicine sealing device according to claim 6, characterized in that: The sealing mechanism may further include at least one guide post, which extends in a vertical direction and passes through the fixing seat, and the guide post is slidably engaged with the fixing seat.

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