An automatic discharging device for small bag medicines

Abstract

The present invention discloses an automatic discharging device for sachet drugs, which includes a conveying box. A sachet conveyor belt is arranged downstream of the conveying box. The automatic discharging device is used to send the sachet drugs in the conveying box onto the sachet conveyor belt. The automatic discharging device includes a cross beam arranged along the length direction of the conveying box. A longitudinal beam arranged along the conveying direction of the conveying box is slidably installed on the cross beam. A transverse power device for driving the longitudinal beam to slide transversely is arranged on the cross beam. A longitudinal sliding seat is slidably installed on the longitudinal beam. The longitudinal sliding seat is driven by a longitudinal power device installed on the longitudinal beam. A swing link mechanism is installed on the longitudinal sliding seat in a yaw manner. One end of the swing link mechanism is hinged to the longitudinal sliding seat and is driven by a yaw power device. The other end of the swing link mechanism is provided with a lifting and picking rod. A vacuum chuck is arranged at the lower end of the lifting and picking rod. This automatic discharging device can better suck the sachet drugs from the conveying box and occupies less space.

Description

Technical Field

[0001] The present invention relates to the technical field of discharging small-bag drugs, and in particular to an automatic discharging device for small-bag drugs. Background Art

[0002] Currently, the packaging technology for powder drugs or granular drugs is relatively mature. The powder drugs or granular drugs are first packaged in small packaging bags to form small-bag drugs. After the small-bag drugs are packaged, they are sent into a conveying box. The conveying box is circularly conveyed by a conveying device. Multiple small-bag drugs are stored in the conveying box. After the conveying box is conveyed to the downstream, an unloading device is required to unload the small-bag drugs in the conveying medicine box one by one and send them onto the small-bag drug conveyor belt. A weighing device is arranged downstream of the small-bag drug conveyor belt. Since the individual weight of each small-bag drug is the same, the total weight is measured by the weighing device, so that the counting of small-bag drugs can be realized, which is convenient for accurate packaging of large packaging bags in the subsequent process.

[0003] In order to improve the transportation and discharging of the entire small-bag drugs, multiple conveying devices for conveying the conveying boxes are arranged on the entire rack. The multiple conveying devices are arranged vertically up and down. The corresponding discharging devices are also multiple sets and correspond to the multiple conveying devices one by one. Currently, the main automatic discharging device mainly uses a three-axis truss robot in the X, Y, and Z directions. A vacuum suction cup is installed at the end of the robot. The vacuum suction cup can move in the X, Y, and Z directions, so as to transport the small-bag drugs in the conveying box onto the small-bag drug conveyor belt. However, this discharging device has the following disadvantages: 1. The vacuum suction cup vertically moves up and down in the Z direction. Since the depth of the conveying box is relatively deep, the vacuum suction cup needs to extend into the inside of the conveying box and also needs to avoid the conveying box. Therefore, the stroke of the vacuum suction cup in the Z direction is very large, resulting in a relatively large distance between the multiple conveying devices and the overall equipment being relatively large; 2. Currently, when the vacuum suction cup does not move in the X and Y directions, the range area for the vacuum suction cup to move up and down in the Z direction to suck small-bag drugs is relatively small, and it can only suck the small-bag drugs directly below the vacuum suction cup. Therefore, the positions of the X and Y directions need to be frequently adjusted to suck all the drugs in the conveying box, resulting in a relatively low discharging efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an automatic discharging device for small-bag drugs, which can better suck small-bag drugs from the conveying box and occupy less space.

[0005] To solve the above technical problems, the technical solution of the present invention is: an automatic discharging device for small bag drugs, including a conveying box for placing small bag drugs. A small bag conveyor belt is arranged downstream of the conveying box. The automatic discharging device is used to send the small bag drugs in the conveying box onto the small bag conveyor belt. The automatic discharging device includes a cross beam arranged along the length direction of the conveying box. A longitudinal beam arranged along the conveying direction of the conveying box is slidably installed on the cross beam. A transverse power device for driving the longitudinal beam to slide horizontally is arranged on the cross beam. A longitudinal sliding seat is slidably installed on the longitudinal beam. The longitudinal sliding seat is driven by a longitudinal power device installed on the longitudinal beam. A swing link mechanism is installed on the longitudinal sliding seat in a swing manner. One end of the swing link mechanism is hinged to the longitudinal sliding seat and is driven by a swing power device. The other end of the swing link mechanism is provided with a lifting and picking rod. A vacuum suction cup for sucking small bag drugs is arranged at the lower end of the lifting and picking rod.

[0006] As a preferred solution, the swing link mechanism includes a first link and a second link. The swing power device is installed on the longitudinal sliding seat. A driving disk is fixed on the output shaft of the swing power device. One end of the first link is hinged to the longitudinal sliding seat. One end of the second link is hinged to the center of the driving disk. An auxiliary connection structure is also arranged between the second link and the driving disk. One ends of the first link and the second link are hinged to the lifting and picking rod.

[0007] As a preferred solution, the auxiliary connection structure includes an auxiliary connection shaft fixed on the driving disk. An auxiliary bearing sleeved on the auxiliary connection shaft is arranged on the second connecting rod.

[0008] As a preferred solution, the number of longitudinal beams is two. The longitudinal sliding seats are slidably installed on each longitudinal beam. The swing link structures are installed on each longitudinal sliding seat. The other ends of each swing link structure are all connected to the lifting and picking rod. Vacuum suction cups corresponding to the same conveying box are installed at the lower ends of the lifting and picking rods. Each longitudinal beam is driven by an independent transverse power device. Each longitudinal sliding seat is driven by an independent longitudinal power device. The number of small bag conveyor belts is two sets and they respectively correspond to the corresponding vacuum suction cups.

[0009] As a preferred solution, a turning mechanism for turning the small bag drugs onto the small bag conveyor belt is also arranged between the small bag conveyor belt and the conveying box.

[0010] As a preferred solution, the turning mechanism includes a turning fixed seat fixed upstream of the bracket of the small bag conveyor belt. At both ends of the turning fixed seat, deflection shafts are installed in a swingable manner. The deflection center line of the deflection shaft is perpendicular to the conveying direction of the conveyor belt. On each of the two deflection shafts, a receiving box is installed through a weighing sensor. The two receiving boxes correspond to the corresponding vacuum suction cups respectively. On each turning fixed seat, a turning power device for driving the deflection of the deflection shaft is installed.

[0011] As a preferred solution, the transverse power device includes a transverse servo motor fixedly installed on the cross beam. A transverse synchronous belt mechanism is installed on the cross beam. The transverse servo motor drives the transverse synchronous belt mechanism to run reciprocally. A transverse driving block is fixed on the synchronous belt of the transverse synchronous belt mechanism. The transverse driving block drives the longitudinal beam to slide transversely.

[0012] As a preferred solution, a clamping groove is provided at the upper end of the transverse driving block. The longitudinal beam is clamped in the clamping groove to achieve synchronous driving. A transverse connecting block is provided on the synchronous belt of the transverse synchronous belt mechanism. A transverse sliding groove for facilitating the transverse sliding of the transverse connecting block is provided on the cross beam. The transverse connecting block is constrained within the transverse sliding groove. The transverse driving block is fixed to the transverse connecting block.

[0013] As a preferred solution, the longitudinal power device includes a longitudinal servo motor fixedly installed on the longitudinal beam. A longitudinal synchronous belt mechanism is installed on the longitudinal beam. The longitudinal servo motor drives the longitudinal synchronous belt mechanism to run reciprocally. The longitudinal sliding seat is connected to the synchronous belt of the longitudinal synchronous belt mechanism.

[0014] After adopting the above technical solution, the effects of the present invention are as follows: Since the automatic discharging device is used to send the sachet drugs in the conveying box onto the sachet conveyor belt, the automatic discharging device includes a cross beam arranged along the length direction of the conveying box. A longitudinal beam arranged along the conveying direction of the conveying box is slidably installed on the cross beam. A transverse power device for driving the longitudinal beam to slide transversely is arranged on the cross beam. A longitudinal sliding seat is slidably installed on the longitudinal beam. The longitudinal sliding seat is driven by a longitudinal power device installed on the longitudinal beam. A swing link mechanism is swingably installed on the longitudinal sliding seat. One end of the swing link mechanism is hinged to the longitudinal sliding seat and is driven by a swing power device. The other end of the swing link mechanism is provided with a lifting material taking rod. A vacuum suction cup for sucking sachet drugs is arranged at the lower end of the lifting material taking rod. Therefore, the vacuum suction cup is driven to deflect by the swing power device and the swing link mechanism. During the deflection process, the vacuum suction cup not only moves in the vertical direction, but its deflection movement can also drive the vacuum suction cup to have a displacement change in the horizontal position. In this way, the coverage range of the vacuum suction cup is larger, reducing the position adjustment frequency of the vacuum suction cup in the transverse and longitudinal directions, and the efficiency is relatively higher than the prior art. In addition, by adopting the swing action of the swing link mechanism, the running speed of the vacuum suction cup is also faster. And by using the swing link mechanism to drive the vacuum suction cup to act, the swing link mechanism can better avoid the conveying box and can reduce the height space.

[0015] Also, since the swing link mechanism includes a first link and a second link, the swing power device is installed on the longitudinal sliding seat. A driving disk is fixed on the output shaft of the swing power device. One end of the first link is hinged to the longitudinal sliding seat. One end of the second link is hinged to the center of the driving disk. An auxiliary connection structure is also arranged between the second link and the driving disk. One ends of the first link and the second link are hinged to the lifting material taking rod. In the structure of this swing link mechanism, the swing power device drives the driving disk to deflect. When deflecting, the auxiliary connection structure drives the second link to swing back and forth, and then drives the swing link mechanism to swing back and forth. This swing action is accurate and reliable.

[0016] Also, since the number of longitudinal beams is two, the longitudinal sliding seats are slidably installed on each longitudinal beam. The swing link structures are installed on each longitudinal sliding seat. The other ends of each swing link structure are all connected to the lifting material taking rod. Vacuum suction cups corresponding to the same conveying box are installed at the lower ends of the lifting material taking rods. Each longitudinal beam is driven by an independent transverse power device. Each longitudinal sliding seat is driven by an independent longitudinal power device. The number of sachet conveyor belts is two sets and they correspond to the corresponding vacuum suction cups respectively. In this way, two sets of vacuum suction cups are used to suck the sachet drugs in the same conveying box, so that the medicine boxes inside the conveying box can be sent out more quickly and the discharging efficiency is higher.

[0017] Moreover, since the material turning mechanism includes a material turning fixed seat upstream of the bracket for fixing the small bag conveyor belt, deflection shafts are respectively installed at both ends of the material turning fixed seat in a swingable manner. The deflection center line of the deflection shaft is perpendicular to the conveying direction of the conveyor belt. Receptacle boxes are respectively installed on the two deflection shafts through weighing sensors, and the two receptacle boxes respectively correspond to the corresponding vacuum suction cups. A material turning power device for driving the deflection of the deflection shaft is installed on each material turning fixed seat. The material turning mechanism can better connect small bag drugs and also reduce the moving range of the swing link mechanism, thus achieving higher efficiency. At the same time, the receptacle box is directly installed on the deflection shaft by the weighing sensor. Therefore, after directly weighing by the weighing sensor, the material is turned over and poured onto the small bag conveyor belt, so the weighing is faster and there is no need to weigh at the downstream of the small bag conveyor belt.

[0018] Moreover, since a card slot is provided at the upper end of the lateral driving block, the longitudinal beam is clamped in the card slot to achieve synchronous driving. A lateral connecting block is provided on the synchronous belt of the lateral synchronous belt mechanism, and a lateral sliding groove for facilitating the lateral sliding of the lateral connecting block is provided on the cross beam. The lateral connecting block is constrained within the lateral sliding groove, and the lateral driving block is fixed to the lateral connecting block. The lateral driving block is directly driven to move by the synchronous belt of the lateral synchronous belt mechanism, and the lateral connecting block is constrained within the lateral sliding groove. In this way, the sliding of the lateral driving block is smoother and the force on the lateral connecting block is more reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the drawings and embodiments.

[0020] Figure 1 is a schematic structural view of an embodiment of the present invention;

[0021] Figure 2 is Figure 1 the front view of

[0022] Figure 3 is a partial structural view of the cross beam and the longitudinal beam of an embodiment of the present invention;

[0023] Figure 4 is a partial structural view of the conveying box, the turning mechanism and the small bag conveyor belt of an embodiment of the present invention;

[0024] Figure 5 is a schematic structural view of another angle of an embodiment of the present invention;

[0025] Figure 6 is a schematic structural view of a conveying device where the automatic discharging device of an embodiment of the present invention is located;

[0026] In the attached drawings: 1. conveying box; 2. sachet conveyor belt; 3. cross beam; 4. longitudinal beam; 5. transverse power device; 51. transverse servo motor; 52. transverse synchronous belt mechanism; 53. transverse drive block; 54. transverse connecting block; 6. longitudinal sliding seat; 7. longitudinal power device; 71. longitudinal servo motor; 72. longitudinal synchronous belt mechanism; 8. yaw power device; 9. lifting and picking rod; 10. vacuum suction cup; 11. first connecting rod; 12. second connecting rod; 13. drive disc; 14. auxiliary connecting shaft; 15. turning material fixing seat; 16. yaw shaft; 17. weighing sensor; 18. receiving box; 19. turning material power device; 20. frame. Detailed implementation manners

[0027] The present invention will be further described in detail below through specific embodiments.

[0028] As Figures 1-6 shown, an automatic discharging device for sachet drugs includes a conveying box 1 for placing sachet drugs. A sachet conveyor belt 2 is arranged downstream of the conveying box 1. The automatic discharging device is used to send the sachet drugs in the conveying box 1 onto the sachet conveyor belt 2. The automatic discharging device includes a cross beam 3 arranged along the length direction of the conveying box 1. A longitudinal beam 4 arranged along the conveying direction of the conveying box 1 is slidably installed on the cross beam 3. A transverse power device 5 for driving the longitudinal beam 4 to slide transversely is arranged on the cross beam 3. A longitudinal sliding seat 6 is slidably installed on the longitudinal beam 4. The longitudinal sliding seat 6 is driven by a longitudinal power device 7 installed on the longitudinal beam 4. A yaw link mechanism is yawingly installed on the longitudinal sliding seat 6. One end of the yaw link mechanism is hinged to the longitudinal sliding seat 6 and is driven by a yaw power device 8. The other end of the yaw link mechanism is provided with a lifting and picking rod 9. A vacuum suction cup 10 for sucking sachet drugs is arranged at the lower end of the lifting and picking rod 9.

[0029] In this embodiment, the lateral power device 5 includes a lateral servo motor 51 fixedly installed on the cross beam 3. A lateral synchronous belt mechanism 52 is installed on the cross beam 3. The lateral servo motor 51 drives the lateral synchronous belt mechanism 52 to reciprocate. A lateral driving block 53 is fixed on the synchronous belt of the lateral synchronous belt mechanism 52. The lateral driving block 53 drives the longitudinal beam 4 to slide laterally. A clamping groove is provided at the upper end of the lateral driving block 53. The longitudinal beam 4 is clamped in the clamping groove to achieve synchronous driving. A lateral connecting block 54 is provided on the synchronous belt of the lateral synchronous belt mechanism 52. A lateral sliding groove facilitating the lateral sliding of the lateral connecting block 54 is provided on the cross beam 3. The lateral connecting block 54 is constrained in the lateral sliding groove. The lateral driving block 53 is fixed on the lateral connecting block 54; the longitudinal power device 7 includes a longitudinal servo motor 71 fixedly installed on the longitudinal beam 4. A longitudinal synchronous belt mechanism 72 is installed on the longitudinal beam 4. The longitudinal servo motor 71 drives the longitudinal synchronous belt mechanism 72 to reciprocate. The longitudinal sliding seat 6 is connected to the synchronous belt of the longitudinal synchronous belt mechanism 72. The yaw link mechanism includes a first link 11 and a second link 12. The yaw power device 8 is installed on the longitudinal sliding seat 6. A driving disc 13 is fixed on the output shaft of the yaw power device 8. One end of the first link 11 is hinged to the longitudinal sliding seat 6. One end of the second link 12 is hinged to the center of the driving disc 13. An auxiliary connection structure is further provided between the second link 12 and the driving disc 13. One ends of the first link 11 and the second link 12 are hinged to the lifting and material taking rod 9. The auxiliary connection structure includes an auxiliary connection shaft 14 fixed to the driving disc 13. An auxiliary bearing sleeved on the auxiliary connection shaft 14 is provided on the second connecting rod.

[0030] In this embodiment, the number of longitudinal beams 4 is two. The longitudinal sliding seat 6 is slidably installed on each longitudinal beam 4. The yaw link structure is installed on each longitudinal sliding seat 6. The other ends of each yaw link structure are all connected to the lifting and material taking rod 9. Vacuum suction cups 10 corresponding to the same conveying box 1 are installed at the lower ends of the lifting and material taking rods 9. Each longitudinal beam 4 is driven by an independent lateral power device 5. Each longitudinal sliding seat 6 is driven by an independent longitudinal power device 7. The number of small bag conveyor belts 2 is two sets and they respectively correspond to the corresponding vacuum suction cups 10.

[0031] A turning mechanism for turning the small bag of medicine onto the small bag conveyor belt 2 is further provided between the small bag conveyor belt 2 and the conveying box 1. The turning mechanism includes a turning fixed seat 15 fixed upstream of the small bag conveyor belt 2. Deflection shafts 16 are respectively and yawingly installed at both ends of the turning fixed seat 15. The deflection center line of the deflection shaft 16 is perpendicular to the conveying direction of the conveyor belt. Receiving boxes 18 are respectively installed on the two deflection shafts 16 through weighing sensors 17. The two receiving boxes 18 respectively correspond to the corresponding vacuum suction cups 10. A turning power device 19 for driving the deflection of the deflection shaft 16 is installed on each turning fixed seat 15.

[0032] During daily work, multiple conveying devices for conveying the medicine delivery boxes 1 are arranged on the rack 20, and correspondingly, there are also multiple sets of automatic discharging devices. Moreover, the automatic discharging devices and the multiple conveying devices are in a one-to-one correspondence relationship. In this embodiment, Figure 6 only one set of conveying device is used for illustration, and the other multiple conveying devices are omitted and not drawn. After the delivery box 1 is conveyed, the yaw power device 8 drives the yaw link mechanism to deflect, thereby driving the movement of the vacuum suction cup 10. Since the small bag of medicine is sucked on the vacuum suction cup 10, the vacuum suction cup 10 conveys the small bag of medicine from the delivery box 1 into the receiving box 18 of the turning mechanism. After being weighed by the weighing sensor 17, the turning power device 19 drives the receiving box 18 to turn over, and dumps the weighed small bag of medicine onto the small bag conveyor belt 2 for further conveyance. This discharging device is faster in weighing and higher in conveying efficiency.

[0033] During use, the position of the vacuum suction cup 10 is adjusted at any time according to the different positions of the small bag of medicine. The position of the vacuum suction cup 10 can be changed correspondingly by adjusting the position of the longitudinal sliding seat 6. The displacement in the horizontal direction can be completed by driving the horizontal synchronous belt mechanism 52 by the horizontal power device 5, and the displacement in the height direction can be completed by driving the longitudinal synchronous belt mechanism 72 by the longitudinal driving device. Using the turning mechanism can better connect the small bag of medicine and also reduce the moving range of the yaw link mechanism, making the space occupied by the whole conveyance smaller, so the efficiency is higher, and it well solves the problem that the stroke of the vacuum suction cup in the Z direction is very large, resulting in a relatively large distance between multiple conveying devices and the overall equipment being relatively large.

[0034] The actuator devices such as the servo motor and the synchronous belt structure mentioned in this embodiment are all current conventional technologies. The specific structures and principles of the motor and other transmission mechanisms and other designs are detailedly disclosed in the "Mechanical Design Manual, Fifth Edition" printed for the twenty-eighth time in Beijing in April 2008, which belongs to the prior art, and its structure is clear. The Modern Practical Pneumatic Technology, 3rd Edition, SMC Training Manual published by China Machine Press on August 1, 2008 details the vacuum components, gas circuits and program controls, indicating that the gas circuit structure in this embodiment is also an existing technology and is clear. The book "Motor Drive and Speed Regulation" published by Chemical Industry Press on July 1, 2015 also details the control of the motor and the travel switch. Therefore, the circuit connections are all clear.

[0035] The above-described embodiments are only descriptions of the preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and modifications made to the technical solution of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An automatic discharging device for sachet drugs, comprising a conveying box for placing sachet drugs, a sachet conveyor belt is arranged downstream of the conveying box, and the automatic discharging device is used to send the sachet drugs in the conveying box onto the sachet conveyor belt, and is characterized in that: The automatic discharging device includes a cross beam arranged along the length direction of the conveying box. A longitudinal beam arranged along the conveying direction of the conveying box is slidably mounted on the cross beam. A transverse power device for driving the longitudinal beam to slide transversely is provided on the cross beam. A longitudinal sliding seat is slidably mounted on the longitudinal beam. The longitudinal sliding seat is driven by a longitudinal power device mounted on the longitudinal beam. A swing link mechanism is swingably mounted on the longitudinal sliding seat. One end of the swing link mechanism is hinged to the longitudinal sliding seat and is driven by a swing power device. The other end of the swing link mechanism is provided with a lifting material taking rod. A vacuum suction cup for sucking small bag drugs is provided at the lower end of the lifting material taking rod. The swing link mechanism includes a first link and a second link. The swing power device is mounted on the longitudinal sliding seat. A driving disk is fixed on the output shaft of the swing power device. One end of the first link is hinged to the longitudinal sliding seat. One end of the second link is hinged to the center of the driving disk. An auxiliary connection structure is further provided between the second link and the driving disk. One ends of the first link and the second link are hinged to the lifting material taking rod. The auxiliary connection structure includes an auxiliary connection shaft fixed to the driving disk. The number of longitudinal beams is two. The longitudinal sliding seats are slidably mounted on each longitudinal beam. The swing link mechanisms are mounted on each longitudinal sliding seat. The other ends of each swing link mechanism are all connected to the lifting material taking rod. The vacuum suction cups corresponding to the same conveying box are mounted at the lower ends of the lifting material taking rods. Each longitudinal beam is driven by an independent transverse power device. Each longitudinal sliding seat is driven by an independent longitudinal power device. The number of small bag conveyor belts is two sets and they respectively correspond to the corresponding vacuum suction cups. A turning mechanism for turning the small bag drugs onto the small bag conveyor belt is further provided between the small bag conveyor belt and the conveying box. The turning mechanism includes a turning fixed seat fixed upstream of the small bag conveyor belt. Deflection shafts are swingably mounted at both ends of the turning fixed seat respectively. The deflection center line of the deflection shaft is perpendicular to the conveying direction of the conveyor belt. Receiving boxes are respectively mounted on the two deflection shafts through weighing sensors. The two receiving boxes respectively correspond to the corresponding vacuum suction cups. A turning power device for driving the deflection shaft to deflect is mounted on each turning fixed seat.

2. The automatic discharging device for small-bag medicines according to claim 1, characterized in that: The transverse power device includes a transverse servo motor fixedly mounted on the cross beam. A transverse synchronous belt mechanism is mounted on the cross beam. The transverse servo motor drives the transverse synchronous belt mechanism to run reciprocally. A transverse driving block is fixed on the synchronous belt of the transverse synchronous belt mechanism. The transverse driving block drives the longitudinal beam to slide transversely.

3. The automatic discharging device for small-bag medicines according to claim 2, characterized in that: A clamping groove is provided at the upper end of the transverse driving block. The longitudinal beam is clamped in the clamping groove to achieve synchronous driving. A transverse connecting block is provided on the synchronous belt of the transverse synchronous belt mechanism. A transverse sliding groove for facilitating the transverse sliding of the transverse connecting block is provided on the cross beam. The transverse connecting block is constrained in the transverse sliding groove. The transverse driving block is fixed to the transverse connecting block.

4. The automatic discharging device for small-bag medicines according to claim 3, wherein: The longitudinal power device includes a longitudinal servo motor fixedly installed on the longitudinal beam. A longitudinal synchronous belt mechanism is installed on the longitudinal beam, and the longitudinal servo motor drives the longitudinal synchronous belt mechanism to run reciprocally. The longitudinal slide is connected to the synchronous belt of the longitudinal synchronous belt mechanism.

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