Electromagnetic induction sealing device for medicine container

Abstract

The present invention relates to the technical field of packaging equipment, and specifically discloses an electromagnetic induction sealing device for a medicine container, comprising a medicine container conveying system, an electromagnetic induction plate and a control system, wherein the medicine container conveying system comprises an electric conveyor belt and a centering mechanism, wherein the centering mechanism comprises a bottle guide assembly symmetrically arranged on both sides of the electric conveyor belt, wherein the bottle guide assembly comprises a base, wherein a row of bottle guide wheels arranged along the conveying direction of the electric conveyor belt are slidably connected to the base, wherein the sliding direction of the bottle guide wheels on the base is perpendicular to the electric conveyor belt, wherein a push rod is arranged on one side of the row of bottle guide wheels away from the electric conveyor belt, wherein one end of the push rod is rotatably connected and fixed, and the other end of the push rod can push the bottle guide wheel toward the electric conveyor belt under the push of a driver, wherein a belt is installed on the outer side of the row of bottle guide wheels, and a tensioning wheel is arranged on the inner side of the belt on the side of the row of bottle guide wheels away from the electric conveyor belt. The present invention can make medicine bottles of different sizes and different distances from the center of the conveyor belt centered and conveyed, thereby avoiding affecting the sealing quality.

Description

Technical Field

[0001] The invention relates to the technical field of packaging equipment, in particular to an electromagnetic induction sealing device for a medicine container. Background Art

[0002] With the continuous improvement of consumption level, people have higher and higher requirements for product quality and packaging. Compared with traditional packaging bags, bottled packaging has better protection for products, and more and more bottled products appear in people's daily life. For example, bottled medicines usually need to be sealed before leaving the factory, so that the medicines in the bottle are sealed with the external environment, which is convenient for the storage and transportation of medicines. In order to improve the sealing efficiency, electromagnetic induction sealing is currently widely used. The principle of electromagnetic induction is used to make the aluminum foil on the bottle mouth generate high heat instantly, and then fuse to the bottle mouth to achieve the sealing function. This method has a fast sealing speed and is suitable for sealing and packaging of large quantities of pharmaceutical containers; it is easy to use and has good sealing quality; it has good moisture-proof, mildew-proof and anti-counterfeiting effects, thereby extending the shelf life of items. It is an ideal sealing equipment for the pharmaceutical, pesticide, food, cosmetics and other industries.

[0003] However, medicine bottles often have different sizes depending on the type of medicine they are packaged in. If the medicine bottles are not transported in the center, the magnetic field generated by the electromagnetic induction plate is unevenly distributed, causing the aluminum foil to be heated unevenly, and the sealing effects of medicine bottles from different batches of medicines may vary. Summary of the invention

[0004] In order to solve the problem in the prior art that medicine bottles of different sizes may lead to uneven sealing effects if they are not transported in a centered manner, the present invention provides an electromagnetic induction sealing device for medicine containers.

[0005] The technical solution adopted by the present invention is:

[0006] A drug container electromagnetic induction sealing device, comprising a drug container conveying system, an electromagnetic induction plate and a control system, wherein the electromagnetic induction plates are arranged on both sides above the drug container conveying system, and the control system is used to control the magnitude and frequency of the current in the electromagnetic induction plate. The drug container conveying system comprises an electric conveyor belt and a centering mechanism, and the centering mechanism comprises a bottle guide assembly symmetrically arranged on both sides of the electric conveyor belt, and the bottle guide assembly comprises a base, and a row of bottle guide wheels arranged along the conveying direction of the electric conveyor belt are slidably connected to the base, and the sliding direction of the bottle guide wheels on the base is perpendicular to the electric conveyor belt. A push rod is provided on the side of the row of bottle guide wheels away from the electric conveyor belt, one end of the push rod is rotatably connected and fixed, and the other end is connected to a driver so that the bottle guide wheel can be pushed toward the electric conveyor belt under the push of the driver, and a belt is installed on the outer side of the row of bottle guide wheels, and a tensioning wheel is also provided on the inner side of the belt located on the side of the row of bottle guide wheels away from the electric conveyor belt.

[0007] Preferably, a first rotating shaft is connected to the axis center of the bottle guide wheel closest to the upstream of the electric conveyor belt among the bottle guide wheels, and the first rotating shaft is rotatably connected to the base. A first sliding groove is provided on the base corresponding to each of the remaining bottle guide wheels, and a first slider is provided in the first sliding groove. A second rotating shaft is rotatably connected to the axis center of each of the remaining bottle guide wheels, and the second rotating shaft is connected to the first slider in a one-to-one correspondence. One end of the second rotating shaft facing the first slider first bends in a direction away from the electric conveyor belt and then bends toward the first slider and is connected to the first slider. A spring is connected between the first slider and the first sliding groove.

[0008] Preferably, a second slide groove is provided on the base corresponding to the tensioning wheel, a second slider is provided in the second slide groove, a third rotating shaft is rotatably connected to the axis of the tensioning wheel, the third rotating shaft is connected to the second slider, and a spring is connected between the second slider and the second slide groove.

[0009] Preferably, a third sliding groove is provided on the second sliding block, a third sliding block is provided in the third sliding groove, the third rotating shaft is connected to the third sliding block, and a spring is connected between the third sliding block and the third sliding groove.

[0010] Preferably, the push rod is in a "V" shape, and the two side connections of the push rod are rotatably connected to the base. One side of the push rod is located between a row of bottle guide wheels and a tension wheel, and the other side of the push rod is located on a side of the tension wheel away from the row of bottle guide wheels. One end of one side of the push rod away from the two side connections is connected to a driver.

[0011] Preferably, the base is in a "C" shape, with the open side of the base arranged toward the electric conveyor belt, the two ends of the first rotating shaft being rotatably connected to the bottom plate and the top plate of the base respectively, the opposite sides of the bottom plate and the top plate of the base respectively corresponding to each of the remaining bottle guide wheels are provided with a first slide groove, the two ends of the second rotating shaft are respectively connected to the first sliders in the two first slide grooves corresponding to the upper and lower parts of the bottle guide wheel, the opposite sides of the bottom plate and the top plate of the base are respectively provided with second slide grooves corresponding to the tensioning wheel, the second slide groove is provided with a second slider, the opposite sides of the two second sliders are respectively provided with third slide grooves, and the two ends of the third rotating shaft are respectively connected to the third sliders in the two third slide grooves corresponding to the upper and lower parts of the tensioning wheel.

[0012] Preferably, a clearance hole corresponding to a row of bottle guide wheels and a clearance hole corresponding to the tensioning wheel are respectively provided in the middle of both sides of the push rod.

[0013] Preferably, the driver is a linear module, a slider on the linear module is rotatably connected to a driving rod, and the driving rod is rotatably connected to one end of one side of the push rod away from the connection between the two sides.

[0014] Preferably, collars are provided at the connection points on both sides of the push rod, the collars are sleeved on the first rotating shaft and are rotatably connected to the first rotating shaft, and the outer side of the push rod close to the bottle guide wheel is tangent to the first rotating shaft.

[0015] The beneficial effects of the present invention are:

[0016] According to the size of the medicine bottle, the bottle guide wheel is pushed by the rotation of the push rod, so that the belt on the bottle guide wheel forms a channel for centering the medicine bottle. Since the bottle guide wheel is driven by the rotation of the push rod, the width of the channel entrance can be maintained unchanged, and the width of the exit can be adjusted according to the size of the medicine bottle, so that the channel will not block the medicine bottle that is far away from the central axis of the electric conveyor belt, and it is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view structural schematic diagram of the electromagnetic induction sealing device for a medicine container in an embodiment of the present invention;

[0018] Figure 2 Schematic diagram of the top view of the centering mechanism in an embodiment of the present invention;

[0019] Figure 3 It is a left-side structural schematic diagram of the second rotating shaft and the bottle guide wheel on the front side of the electromagnetic induction sealing device for a medicine container in an embodiment of the present invention;

[0020] Figure 4 It is a left-side structural schematic diagram of the tensioning wheel on the front side of the electromagnetic induction sealing device for a medicine container in an embodiment of the present invention;

[0021] Figure 5 It is a schematic diagram of the rear view structure of the push rod on the front side of the electromagnetic induction sealing device for a medicine container in an embodiment of the present invention;

[0022] Figure 6 It is a front view structural schematic diagram of a push rod on the front side of the electromagnetic induction sealing device for a medicine container in an embodiment of the present invention;

[0023] Figure 7 It is a top view structural schematic diagram of the operation process of the push rod on the front side of the electromagnetic induction sealing device for a medicine container in an embodiment of the present invention;

[0024] Figure numerals: 1. pharmaceutical container conveying system, 2. electromagnetic induction plate, 3. control system, 4. electric conveyor belt, 5. centering mechanism, 6. bottle guide assembly, 7. base, 8. bottle guide wheel, 9. push rod, 10. driver, 11. belt, 12. tensioning wheel, 13. first rotating shaft, 14. first slide groove, 15. first slider, 16. second rotating shaft, 17. second slide groove, 18. second slider, 19. third rotating shaft, 20. third slide groove, 21. third slider, 22. clearance hole, 23. driving rod, 24. collar. DETAILED DESCRIPTION

[0025] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0026] Example

[0027] like Figure 1 and Figure 2 As shown, an electromagnetic induction sealing device for a pharmaceutical container comprises a pharmaceutical container conveying system 1, an electromagnetic induction plate 2 and a control system 3, wherein the electromagnetic induction plate 2 is arranged on both sides above the pharmaceutical container conveying system 1, and the control system 3 is used to control the magnitude and frequency of the current in the electromagnetic induction plate 2, the pharmaceutical container conveying system 1 comprises an electric conveyor belt 4 and a centering mechanism 5, the centering mechanism 5 comprises a bottle guide assembly 6 symmetrically arranged on both sides of the electric conveyor belt 4, the bottle guide assembly 6 comprises a base 7, a row of bottle guide wheels 8 arranged along the conveying direction of the electric conveyor belt 4 is slidably connected to the base 7, the sliding direction of the bottle guide wheel 8 on the base 7 is perpendicular to the electric conveyor belt 4, a push rod 9 is provided on one side of the row of bottle guide wheels 8 away from the electric conveyor belt 4, one end of the push rod 9 is rotatably connected and fixed, and the other end is connected to a driver 10 so that the bottle guide wheel 8 can be pushed toward the electric conveyor belt 4 under the push of the driver 10, a belt 11 is installed on the outer side of the row of bottle guide wheels 8, and a tensioning wheel 12 is also provided on the inner side of the belt 11 located on the side of the row of bottle guide wheels 8 away from the electric conveyor belt 4.

[0028] Before sealing the medicine bottle, the bottle guide wheels 8 on both sides of the electric conveyor belt 4 are adjusted according to the size of the medicine bottle (mainly the outer diameter of the bottle body of the medicine bottle). One end of the push rod 9 can be rotatably connected to the frame or base 7 to fix the rotation axis. The other end of the push rod 9 is driven by the driver 10 to rotate toward the electric conveyor belt 4, thereby pushing the bottle guide wheel 8 to move toward the electric conveyor belt 4, so that the bottle guide wheel 8 is arranged obliquely along the push rod 9, so that the two rows of bottle guide wheels 8 on both sides of the electric conveyor belt 4 are gradually gathered along the conveying direction, and the belt 11 on the bottle guide wheel 8 forms a trumpet-shaped centering channel. However, the channel formed by the above method can keep the diameter of the entrance close to the upstream end of the electric conveyor belt 4 unchanged, and the movement of the bottle guide wheel 8 will not cause the diameter of the channel entrance to become smaller, so that the medicine bottle that is far from the center of the electric conveyor belt 4 is blocked by the entrance edge and cannot be transported backward. The tensioning wheel 12 can ensure that the belt 11 is always in a tensioned state during the movement of the bottle guide wheel 8, which is convenient for guiding the medicine bottle to gradually complete the centering transportation along the channel.

[0029] In order to facilitate the sliding of the bottle guide wheel 8, if it is necessary to make the outlet of the channel close to the downstream end of the electric conveyor belt 4 larger in diameter to accommodate the central transportation of larger-sized medicine bottles, in order to make the channel diameter larger, the bottle guide wheel 8 can move outward close to the push rod 9, such as Figure 2 and Figure 3As shown, a first rotating shaft 13 is connected to the axis center of the bottle guide wheel 8 that is closest to the upstream of the electric conveyor belt 4 among the bottle guide wheels 8, and the first rotating shaft 13 is rotatably connected to the base 7. A first sliding groove 14 is provided on the base 7 corresponding to each of the remaining bottle guide wheels 8, and a first slider 15 is provided in the first sliding groove 14. A second rotating shaft 16 is rotatably connected to the axis center of each of the remaining bottle guide wheels 8, and one end of the second rotating shaft 16 toward the first slider 15 is first bent in a direction away from the electric conveyor belt 4 and then bent toward the first slider 15 and connected to the first slider 15. The second rotating shaft 16 is rotatably connected to the first slider 15 in a one-to-one correspondence, and a spring is connected between the first slider 15 and the first sliding groove 14.

[0030] The bottle guide wheel 8 can slide along the first slide groove 14 by connecting with the first slider 15, and the bottle guide wheel 8 located at the entrance of the channel is directly connected to the base 7 through the first rotating shaft 13, and its position is fixed, so that the opening of the channel always maintains the largest size. When the caliber of the channel outlet needs to be adjusted, the other end of the push rod 9 is driven by the driver 10 to rotate in the direction away from the electric conveyor belt 4, and the second slider 18 also slides in the direction away from the electric conveyor belt 4 under the force of the spring, so that the bottle guide wheel 8 is always close to the push rod 9. The bottle guide wheel 8 is kept in a straight line distribution under the limit of the push rod 9, which is convenient for the belt 11 to guide the medicine bottle. Of course, in order to reduce the friction of the belt 11 on the medicine bottle, the outer side of the belt 11 should be as smooth as possible.

[0031] Due to the movement of the bottle guide wheel 8, in order to avoid excessive tension of the tension wheel 12 on the belt 11, Figure 4 As shown, a second slide groove 17 is provided on the base 7 corresponding to the tensioning wheel 12, a second slider 18 is provided in the second slide groove 17, a third rotating shaft 19 is rotatably connected to the axis of the tensioning wheel 12, the third rotating shaft 19 is connected to the second slider 18, and a spring is connected between the second slider 18 and the second slide groove 17.

[0032] The tensioning wheel 12 has a certain amount of movement in the second slide groove 17 through the cooperation of the second slider 18 and the spring, so as to prevent the tensioning wheel 12 from moving with the bottle guide wheel 8, causing the distance between the two to change too much and the tensioning effect to be unsatisfactory.

[0033] In order to realize the synchronous movement of the bottle guide wheel 8 and the tension wheel 12, the tension wheel 12 can also be driven by the push rod 9 to move in the second slide groove 17. The specific movement method will be described in detail later. When the tension wheel 12 is also driven by the push rod 9 to move, in order to ensure the tensioning effect, Figure 4 As shown, a third slide groove 20 is provided on the second slide block 18 , a third slide block 21 is provided in the third slide groove 20 , the third rotating shaft 19 is connected to the third slide block 21 , and a spring is connected between the third slide block 21 and the third slide groove 20 .

[0034] Due to the action of the push rod 9, the spring between the second slider 18 and the second slide groove 17 cannot adjust the tension, and the tensioning wheel 12 can only fit the push rod 9. Therefore, it is necessary to open a third slide groove 20 on the second slider 18. Through the cooperation of the third slider 21 and the spring, the tensioning wheel 12 can move along the third slide groove 20 to adjust the appropriate tension.

[0035] It is mentioned in the above description that the tensioning wheel 12 can also be driven by the push rod 9 to move in the second slide groove 17. Specifically, the push rod 9 is in a "V" shape, and the two side connections of the push rod 9 are rotatably connected to the base 7. One side of the push rod 9 is located between a row of bottle guide wheels 8 and the tensioning wheel 12, and the other side of the push rod 9 is located on the side of the tensioning wheel 12 away from the row of bottle guide wheels 8. One end of one side of the push rod 9 away from the connection between the two sides is connected to the driver 10.

[0036] The push rod 9 is arranged horizontally in a "V" shape, and the connection parts on both sides are rotatably connected to the base 7. The two sides are respectively used to push the bottle guide wheel 8 and the tension wheel 12. Although the push rod 9 drives the bottle guide wheel 8 and the tension wheel 12 when rotating, the distance between the bottle guide wheel 8 and the tension wheel 12 cannot be kept unchanged, but compared with making the tension wheel 12 completely fixed, the tension wheel 12 and the bottle guide wheel 8 can be moved nearly synchronously within a certain range, avoiding the tension wheel 12 and the bottle guide wheel 8 The distance is too far, even if there is a spring adjustment, it may cause the belt 11 to be over-tensioned, affecting the life of the belt 11.

[0037] The base 7 is in a "C" shape, and the open side of the base 7 is arranged toward the electric conveyor belt 4. The two ends of the first rotating shaft 13 are rotatably connected to the bottom plate and the top plate of the base 7 respectively. The opposite sides of the bottom plate and the top plate of the base 7 correspond to each of the remaining bottle guide wheels 8, and a first slide groove 14 is provided. The two ends of the second rotating shaft 16 are respectively connected to the first sliders 15 in the two first slide grooves 14 corresponding to the upper and lower sides of the bottle guide wheel 8. The opposite sides of the bottom plate and the top plate of the base 7 correspond to the tensioning wheel 12, and the second slider 18 is provided in the second slide groove 17. The opposite sides of the two second sliders 18 are respectively provided with third slide grooves 20. The two ends of the third rotating shaft 19 are respectively connected to the third sliders 21 in the two third slide grooves 20 corresponding to the upper and lower sides of the tensioning wheel 12.

[0038] In order to make the push rod 9 push each rotating shaft more smoothly, the base 7 can be designed into a "C" shape, and grooves are respectively opened at the bottom and top of the base 7 so that the bottom and top of the rotating shaft are supported by the slider. The push rod 9 applies force in the middle to make the rotating shaft more stable.

[0039] like Figure 5 and Figure 6 As shown, the middle parts of both sides of the push rod 9 are respectively provided with a clearance hole 22 corresponding to a row of bottle guide wheels 8 and a clearance hole 22 corresponding to the tensioning wheel 12.

[0040] In order to further stabilize the force on the rotating shaft, a clearance hole 22 is opened on the push rod 9, and the bottle guide wheel 8 and the tension wheel 12 can pass through the clearance hole 22, so that the two sides of the push rod 9 apply force to the rotating shaft on both sides of the bottle guide wheel 8 and the tension wheel 12 respectively.

[0041] The driver 10 is a linear module, and a slider on the linear module is rotatably connected to a driving rod 23, and the driving rod 23 is rotatably connected to one end of the push rod 9 away from the connection between the two sides.

[0042] When the outlet size of the channel needs to be adjusted, one end of the driving rod 23 is driven to move through the linear module. Since the push rod 9 is rotatably connected to the base 7, the rotatable connection between the driving rod 23 and the push rod 9 will drive the push rod 9 to rotate around the connection between the push rod 9 and the base 7, thereby pushing the bottle guide wheel 8 and the tension wheel 12 close to the electric conveyor belt 4, or allowing the bottle guide wheel 8 or the tension wheel 12 to move away from the electric conveyor belt 4 under the action of the spring.

[0043] like Figure 5 As shown, sleeve rings 24 are provided at the connection points on both sides of the push rod 9 , and the sleeve rings 24 are sleeved on the first rotating shaft 13 and are rotatably connected to the first rotating shaft 13 . The outer side of the push rod 9 close to the bottle guide wheel 8 is tangent to the first rotating shaft 13 .

[0044] The cooperation between the push rod 9 and the bottle guide wheel 8 is mainly achieved by the second rotating shaft 16. In order to make the second rotating shaft 16 and the first rotating shaft 13 always on the same straight line, that is, all the bottle guide wheels 8 are located on the same straight line, so as to avoid the uneven part on the side of the belt 11 facing the electric conveyor belt 4 affecting the transportation of the medicine bottles, the push rod 9 is connected to the first rotating shaft 13 through a collar 24, and the collar 24 and the first rotating shaft 13 are connected through a bearing. The outer side of the push rod 9 close to the bottle guide wheel 8 is tangent to the first rotating shaft 13. Since the second rotating shaft 16 is always in contact with the push rod 9, that is, the first rotating shaft 13 and the second rotating shaft 16 are both tangent to the outer side of the side of the push rod 9 close to the bottle guide wheel 8, and thus are located on the same straight line.

[0045] In the present invention, in order to better convey the medicine bottles, a motor can also be arranged on the base 7, and the first rotating shaft 13 can be connected to the output shaft of the motor, so that the first rotating shaft 13 can be driven to rotate by the motor, and finally the belt 11 can be driven to run. The operation of the belt 11 cooperates with the operation of the electric conveyor belt 4 to complete the centering and conveying of the medicine bottles in the channel.

[0046] In order to make the operation of the belt more compatible with the electric conveyor belt, the running speed of the belt along the direction of the electric conveyor belt is as close as possible to that of the electric conveyor belt. The running speed of the belt can be adjusted according to the angle between the side close to the electric conveyor belt and the electric conveyor belt. The running speed of the electric conveyor belt is set to The running speed of the belt is , the angle between the side of the belt close to the electric conveyor belt and the electric conveyor belt is , angle That is, the angle between the straight line where the bottle guide wheel is located and the electric conveyor belt, that is, the angle between the side of the push rod close to the bottle guide wheel and the electric conveyor belt. It is determined by the linear module driving the driving rod. The driving rod is set to be rotationally connected to the side of the push rod close to the bottle guide wheel. In the initial state, the side of the push rod close to the bottle guide wheel is parallel to the electric conveyor belt. Figure 7 As shown in the upper part, the point corresponding to the axis of the rotation connection between the drive rod and the driver is marked as , the point corresponding to the axis of the rotation connection between the driving rod and the push rod is recorded as ,point The foot of the perpendicular to the center line of the push rod near the bottle guide wheel is marked as point , the center of the ring is marked as point ,point The foot of the perpendicular to the center line of the push rod near the bottle guide wheel is marked as point , past do The vertical line and Intersect at point After the size of the channel outlet is adjusted according to the size of the medicine bottle, the driver drives the driving rod and the push rod. Figure 7 As shown in the lower part, set the distance that the driver drives the driving rod to move, that is, point The distance moved is The clamping point between the center line of the push rod and the conveying direction of the electric conveyor belt is recorded as , past do The vertical line and Intersect at point , past do The vertical line and Intersect at point , past do The vertical line and Intersect at point , past do The vertical line and Intersect at point ,extend and Intersect at point , according to the geometric relationship, where , , , , , can be measured in advance in the initial state, and It can be obtained through the drive controller, that is, , , , , , , All of them are known quantities, and the following formula can be listed:

[0047] (1)

[0048] (2)

[0049] (3)

[0050] (4)

[0051] (5)

[0052] (6)

[0053] (7)

[0054] (8)

[0055] (9)

[0056] (10)

[0057] (11)

[0058] (12)

[0059] (13)

[0060] because , and The two are similar, so there is the following formula:

[0061] (14)

[0062] (15)

[0063] Finally, the following formula can be obtained:

[0064] (16)

[0065] (17)

[0066] Through equations (16) and (17), we can calculate and , and then according to formula (13) we can calculate , and then calculate according to formula (3) , and finally we can calculate Values:

[0067]

[0068] In order to make the running speed of the belt along the direction of the electric conveyor belt as close as possible to that of the electric conveyor belt, that is, to meet the requirements as much as possible. , the running speed of the belt is , the required running speed of the belt can be calculated, so as to control the speed of the motor and adjust the running speed of the belt to Of course, after the above calculation process is completed by the controller, the motor can be controlled according to the calculated belt running speed.

[0069] The above-mentioned embodiments only express the specific implementation of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An electromagnetic induction sealing device for a pharmaceutical container, comprising a pharmaceutical container conveying system (1), an electromagnetic induction plate (2) and a control system (3), wherein the electromagnetic induction plate (2) is arranged on both sides above the pharmaceutical container conveying system (1), and the control system (3) is used to control the magnitude and frequency of the current in the electromagnetic induction plate (2), characterized in that: The pharmaceutical container conveying system (1) comprises an electric conveyor belt (4) and a centering mechanism (5), wherein the centering mechanism (5) comprises a bottle guide assembly (6) symmetrically arranged on both sides of the electric conveyor belt (4), wherein the bottle guide assembly (6) comprises a base (7), wherein a row of bottle guide wheels (8) arranged along the conveying direction of the electric conveyor belt (4) are slidably connected to the base (7), wherein the sliding direction of the bottle guide wheels (8) on the base (7) is perpendicular to the electric conveyor belt (4), wherein a push rod (9) is provided on the side of the row of bottle guide wheels (8) away from the electric conveyor belt (4), wherein one end of the push rod (9) is rotatably connected and fixed, and the other end is connected to a driver (10) so that the bottle guide wheels (8) can be pushed toward the electric conveyor belt (4) under the push of the driver (10), wherein a belt (11) is installed on the outer side of the row of bottle guide wheels (8), and a tensioning wheel (12) is provided on the inner side of the belt (11) located on the side of the row of bottle guide wheels (8) away from the electric conveyor belt (4); A second slide groove (17) is provided on the base (7) corresponding to the tension wheel (12), a second slider (18) is provided in the second slide groove (17), a third rotating shaft (19) is rotatably connected to the axis of the tension wheel (12), the third rotating shaft (19) is connected to the second slider (18), and a spring is connected between the second slider (18) and the second slide groove (17); The second sliding block (18) is provided with a third sliding groove (20), a third sliding block (21) is provided in the third sliding groove (20), the third rotating shaft (19) is connected to the third sliding block (21), and a spring is connected between the third sliding block (21) and the third sliding groove (20).

2. The electromagnetic induction sealing device for pharmaceutical containers according to claim 1, characterized in that: A first rotating shaft (13) is connected to the axis of the bottle guide wheel (8) closest to the upstream of the electric conveyor belt (4) among the bottle guide wheels (8), and the first rotating shaft (13) is rotatably connected to the base (7). A first sliding groove (14) is provided on the base (7) corresponding to each of the remaining bottle guide wheels (8), and a first sliding block (15) is provided in the first sliding groove (14). A second rotating shaft (16) is rotatably connected to the axis of each of the remaining bottle guide wheels (8), and the second rotating shaft (16) is connected to the first sliding block (15) in a one-to-one correspondence. One end of the second rotating shaft (16) facing the first sliding block (15) is first bent in a direction away from the electric conveyor belt (4) and then bent toward the first sliding block (15) and connected to the first sliding block (15). A spring is connected between the first sliding block (15) and the first sliding groove (14).

3. The electromagnetic induction sealing device for pharmaceutical containers according to claim 2, characterized in that: The push rod (9) is V-shaped, and the connection points on both sides of the push rod (9) are rotatably connected to the base (7). One side of the push rod (9) is located between a row of bottle guide wheels (8) and a tension wheel (12), and the other side of the push rod (9) is located on a side of the tension wheel (12) away from the row of bottle guide wheels (8). One end of one side of the push rod (9) away from the connection points on both sides is connected to a driver (10).

4. The electromagnetic induction sealing device for pharmaceutical containers according to claim 3, characterized in that: The base (7) is C-shaped, and the open side of the base (7) is arranged toward the electric conveyor belt (4). The two ends of the first rotating shaft (13) are respectively rotatably connected to the bottom plate and the top plate of the base (7). The opposite sides of the bottom plate and the top plate of the base (7) are respectively provided with first slide grooves (14) corresponding to each of the remaining bottle guide wheels (8). The two ends of the second rotating shaft (16) are respectively connected to first sliders (15) in two first slide grooves (14) corresponding to the upper and lower sides of the bottle guide wheel (8). The opposite sides of the bottom plate and the top plate of the base (7) are respectively provided with second slide grooves (17) corresponding to the tension wheel (12). The second slide groove (17) is provided with a second slider (18). The opposite sides of the two second sliders (18) are respectively provided with third slide grooves (20). The two ends of the third rotating shaft (19) are respectively connected to third sliders (21) in two third slide grooves (20) corresponding to the upper and lower sides of the tension wheel (12).

5. The electromagnetic induction sealing device for pharmaceutical containers according to claim 4, characterized in that: A clearance hole (22) corresponding to a row of bottle guide wheels (8) and a clearance hole (22) corresponding to the tension wheel (12) are respectively provided in the middle of both sides of the push rod (9).

6. The electromagnetic induction sealing device for pharmaceutical containers according to claim 5, characterized in that: The driver (10) is a linear module, a slider on the linear module is rotatably connected to a driving rod (23), and the driving rod (23) is rotatably connected to one end of the push rod (9) away from the connection between the two sides.

7. The electromagnetic induction sealing device for pharmaceutical containers according to claim 6, characterized in that: Rings (24) are provided at the connection points on both sides of the push rod (9). The rings (24) are sleeved on the first rotating shaft (13) and are rotatably connected to the first rotating shaft (13). The outer side of the push rod (9) close to the bottle guide wheel (8) is tangent to the first rotating shaft (13).

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