Dispensing machine

Abstract

The invention belongs to the technical field of medicine dispensing equipment, and discloses a medicine dispensing machine which is characterized in that a plurality of bag opening holes are formed in a medicine dispensing turntable, and a bag making assembly and a sealing assembly are arranged on the rotating path of the medicine dispensing turntable; the first driving mechanism drives the outer forming device to be switched between the heat sealing position and the bag feeding position along the bag feeding path of the rolled film. A forming space for a roll film to pass through is formed between the inner forming device and the outer forming device; the sealing and cutting mechanism opens and closes to cut off the rolled film and thermally seals the bottom edge of the rolled film to form a film bag; the end, close to the medicine dispensing rotary disc, of the outer forming device is a bearing part, the bearing part bears the film bag at the heat sealing position, and the outer forming device can be switched between the heat sealing position and the bag feeding position so as to jack the borne film bag to be separated from the sealing and cutting mechanism. When the medicine dispensing rotary table rotates, interference between the bottom sealing part of the film bag and the sealing and cutting mechanism can be effectively avoided, and therefore the situation that the film rolling and bottom sealing effect becomes poor is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of medicine dispensing equipment, and particularly relates to a medicine dispenser. Background Art

[0002] Currently, the medicine dispensers for traditional Chinese medicine formula granules are mainly divided into two types: one is the boxed medicine dispenser that has been used for many years. The main advantages of the boxed medicine dispenser are high medicine dispensing efficiency, stable and reliable operation, and the equipment can be miniaturized. Its disadvantages are high single-box cost and inconvenient carrying; the other is the bagged medicine dispenser, which uses food packaging bags, that is, the method of dispensing one dose of medicine into one bag, and has the advantages of low cost and convenient carrying.

[0003] In some current bagged medicine dispensers, there are functions of making bags, putting medicine, and sealing using the film bags with already vertically sealed edges. During the bag-making process, a film pulling mechanism is usually used to drive the film bags to move up and down, and intermittent forward and reverse movements are used to meet the continuous bag-making requirements. However, the current structure is prone to interference between the bottom-sealing part of the film bag and the sealing and cutting mechanism when the medicine dispensing turntable rotates, thus affecting the heat-sealing and bottom-sealing effect. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention discloses a medicine dispenser, which can effectively avoid interference between the bottom-sealing part of the film bag and the sealing and cutting mechanism when the medicine dispensing turntable rotates, thereby avoiding the deterioration of the bottom-sealing effect of the rolled film.

[0005] The specific technical solution of the present invention is as follows:

[0006] A medicine dispenser includes a medicine dispensing turntable, and a plurality of bag-supporting holes are arranged on the medicine dispensing turntable along its rotation path. A bag-making assembly and a sealing assembly are arranged on the rotation path of the medicine dispensing turntable, and the bag-making assembly and the sealing assembly are located on the lower side of the medicine dispensing turntable;

[0007] The bag-making assembly includes:

[0008] A film pulling mechanism, which acts on the vertically sealed edge of the already vertically sealed rolled film to drive the rolled film to reciprocate along the upper-bagging path;

[0009] An outer former and an inner former, the inner former is arranged inside the outer former, and a forming space for the rolled film to pass through is formed between the inner former and the outer former;

[0010] A sealing and cutting mechanism, which is arranged at the heat-sealing position, and the sealing and cutting mechanism opens and closes to cut the rolled film and heat-seal the bottom edge of the rolled film to form a film bag;

[0011] Wherein, the end of the outer former close to the medicine delivery turntable is a receiving part, the receiving part receives the film bag at the heat-sealing position, and the outer former can be switched between the heat-sealing position and the bagging position to lift the received film bag out of the range of the sealing and cutting mechanism.

[0012] In the prior art, the film pulling mechanism drives the rolled film into the bag-supporting hole, and then seals and cuts the rolled film to form a film bag. After the film bag is formed, a part of the film bag is still inside the sealing and cutting mechanism. At this time, if the medicine delivery turntable rotates directly, the heat-sealed part of the film bag inside the sealing and cutting mechanism will interfere with the movement of the sealing and cutting mechanism. Therefore, the heat-sealing function of the sealing and cutting mechanism will cause the bottom-sealing effect of the rolled film to deteriorate. In this application, after the film bag is formed, the outer former is used to lift the film bag to move, so that the film bag completely moves out of the range of the sealing and cutting mechanism. Therefore, when the medicine delivery turntable rotates, the movement interference between the film bag and the sealing and cutting mechanism is avoided, thus ensuring the preset heat-sealing effect.

[0013] Preferably, the receiving part includes a first branch and a second branch arranged opposite to each other, the first branch and the second branch extend towards the direction of the medicine delivery turntable, and there is a receiving gap between the first branch and the second branch.

[0014] The receiving space between the first branch and the second branch can limit the received film bag, avoiding the film bag from bending and being unable to receive force to move upward when the receiving part contacts the film bag, resulting in the failure of lifting, thus better meeting the driving requirements of the outer former for the film bag.

[0015] Preferably, the distance between the first branch and the second branch gradually increases towards the direction of the medicine delivery turntable.

[0016] This structure can improve the receiving efficiency of the receiving gap and prevent the film bag from being unable to enter the receiving gap for limiting.

[0017] Preferably, the sealing assembly includes:

[0018] A bag-sealing mechanism that opens and closes to seal the film bag;

[0019] A bag-transferring mechanism that opens and closes to pick up the film bag that has completed medicine loading in the bag-supporting hole and can be switched between the bag-clamping position and the sealing position to transfer the film bag to the sealing position by the bag-transferring mechanism.

[0020] The moving mechanism moves under the medicine delivery turntable, can well adapt to the overall structure of the medicine dispenser, has a simple structure, can quickly realize the displacement of the film bag, and accurately positions the film bag at the sealing position so that the bag-sealing mechanism seals the film bag.

[0021] Preferably, the sealing assembly further includes:

[0022] The bag insertion plate is arranged on one side of the bag sealing mechanism, the bag insertion plate switches between an avoidance position and a matching position, the bag insertion plate is provided with a bag insertion gap, and the bag insertion plate switches from the avoidance position to the matching position so that the bag insertion gap passes through the film bag to reduce the mouth of the film bag.

[0023] The pocket inserting plate can reduce the size of the mouth of the film bag, so that the bag sealing mechanism can better seal the film bag, thereby avoiding air leakage and / or unsightly appearance caused by uneven heat sealing of the mouth of the film bag.

[0024] Preferably, the bag sealing mechanism comprises:

[0025] A bag pressing unit, which opens and closes to press the film bag at the sealing position at the pressing position;

[0026] A sealing unit, which opens and closes to seal the compressed film bag;

[0027] Wherein, a linkage unit is arranged between the bag pressing unit and the sealing unit, and the linkage unit drives the bag pressing unit and the sealing unit to move synchronously, and drives the sealing unit to continue to move when the bag pressing unit is closed.

[0028] The bag pressing unit can stabilize the position of the film bag to avoid incomplete sealing during the sealing process, and the linkage unit can realize linkage action between the bag pressing unit and the sealing unit. Compared with the separate driving of the bag pressing unit and the sealing unit, the linkage between the two is realized through the mechanical structure, which can well avoid action errors and effectively reduce the design and manufacturing costs.

[0029] Preferably, the bag pressing unit comprises two bag pressing parts arranged opposite to each other, and the sealing unit comprises two sealing parts arranged opposite to each other, the bag pressing parts and the sealing parts correspond to each other one by one, an intermediate part is arranged between the bag pressing parts and the sealing parts on the same side, and the bag pressing parts and the intermediate part on the same side are slidably matched in the opening and closing direction;

[0030] The linkage unit comprises two moving parts that can move relative to each other, the two moving parts open and close to drive the two bag pressing parts and the two sealing parts to open and close, and the sealing parts and the moving parts on the same side slide and cooperate in the opening and closing direction;

[0031] An elastic member 1 is arranged between the bag pressing member and the middle member on the same side, and an elastic member 2 is arranged between the middle member and the moving member on the same side.

[0032] When two moving parts move towards each other, two pressing bag parts move towards each other and two sealing parts move towards each other. When the two pressing bag parts contact and clamp the film bag, the two pressing bag parts abut against each other and remain relatively stationary while the two sealing parts continue to move towards each other, thereby realizing the sealing of the film bag. During this process, the first elastic part deforms and compresses, keeping the two pressing bag parts tightly pressing the film bag and ensuring that the two sealing parts can continue to move towards each other. When heat-sealing the film bag, the second elastic part deforms, giving a greater force to the heat-sealing process to ensure the heat-sealing effect. Then the two moving parts move away from each other, and the second elastic part and the first elastic part recover in turn, thereby realizing the heat-sealing of the film bag. This structure is reasonably designed and the movement process is simple.

[0033] Preferably, a first sensor is arranged on one side of the bag-making assembly to detect whether a film bag is clamped in the bag-supporting hole rotated to the bag-making assembly. If there is no film bag, the bag-making assembly is started to make a bag.

[0034] The first sensor can detect whether there is a film bag in the bag-supporting hole at the position of the bag-making assembly, so as to better realize automatic bag-making.

[0035] Preferably, N bag-supporting holes are arranged on the medicine-dispensing turntable along the rotation path of the medicine-dispensing turntable, where N is an integer greater than or equal to 2;

[0036] The bag-making assembly and the sealing assembly are symmetrically arranged with respect to the axis of the medicine-dispensing turntable, and at least one medicine-dropping assembly is further arranged on the rotation path of the medicine-dispensing turntable;

[0037] The medicine-dispensing machine makes and seals bags by the following method:

[0038] Method 1: When the medicine-dispensing turntable rotates 360 / N° each time in the first direction, when there are film bags in more than N / 2 bag-supporting holes, if the first sensor detects that there is no film bag in the bag-supporting hole corresponding to the bag-making assembly, the bag-making assembly is started to make a bag, and at the same time the sealing assembly seals the film bag in the bag-supporting hole;

[0039] Method 2: After the sealing assembly continuously seals two film bags, the medicine-dispensing turntable rotates 180° in the first direction. The first sensor detects that there is no film bag in the bag-supporting hole corresponding to the bag-making assembly at this time, and the bag-making assembly is started to make a bag. At the same time, the sealing assembly seals the film bag in the corresponding bag-supporting hole at this time. Then the medicine-dispensing turntable rotates 360 / N° in the first direction to seal the film bag at the sealing assembly at this time, and the above steps are repeated to complete the sealing of all film bags.

[0040] Preferably, compare the time used in Method 1 and Method 2, and select the one with the least time-consuming for medicine dispensing.

[0041] Compared with the prior art, the present invention can improve the heat sealing effect of the film bag and avoid the movement interference between the bottom of the film bag and the sealing and cutting mechanism. At the same time, the present invention can complete the bag making action while sealing the bag, thereby improving the bag making efficiency. The present invention realizes simultaneous actions through multiple stations, thereby effectively improving the medicine dispensing efficiency of the medicine dispenser, reducing the waiting time for bag making, and saving time costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is the front view of the embodiment of the present invention;

[0043] Figure 2 is the top view of the embodiment of the present invention;

[0044] Figure 3 is the front view of the bag making assembly in the embodiment of the present invention;

[0045] Figure 4 is the top view of the bag making assembly in the embodiment of the present invention;

[0046] Figure 5 is the schematic diagram of the setting of the outer former in the embodiment of the present invention;

[0047] Figure 6 is the schematic diagram of the outer former and the inner former in the embodiment of the present invention;

[0048] Figure 7 is the schematic diagram of the sealing and cutting mechanism in the embodiment of the present invention;

[0049] Figure 8 is the front view of the sealing assembly in the embodiment of the present invention;

[0050] Figure 9 is the top view of the sealing assembly in the embodiment of the present invention;

[0051] Figure 10 is the partial setting schematic diagram of the bag pressing unit and the sealing unit in the embodiment of the present invention.

[0052] In the figure: 100 - medicine dispensing turntable; 200 - bag making assembly; 300 - sealing assembly; 1 - bag supporting hole; 2 - film pulling mechanism; 3 - outer former; 4 - inner former; 5 - film reel holder; 6 - second limiting member; 7 - first branch; 8 - second branch; 9 - accommodating gap; 10 - cutting knife; 11 - first heat insulation plate; 12 - first sealing and cutting die; 13 - connecting member; 14 - second sealing and cutting die; 15 - groove portion; 16 - second heat insulation plate; 17 - bag moving mechanism; 18 - bag inserting plate; 19 - bag pressing member; 20 - sealing member; 21 - intermediate member; 22 - first elastic member; 23 - second elastic member; 24 - first moving member; 25 - second moving member; 26 - sliding rod; 27 - third moving member; 28 - cam; 29 - first power rod; 30 - second power rod; 31 - bag sliding plate; 32 - connecting rod. Detailed Implementation Modes

[0053] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with specific implementation modes.

[0054] As Figures 1 to 6 shown, a medicine dispensing machine includes a medicine dispensing turntable, and a plurality of bag-supporting holes 1 are arranged on the medicine dispensing turntable along the rotation path of the medicine dispensing turntable. A bag-making assembly 200 and a sealing assembly 300 are arranged on the rotation path of the medicine dispensing turntable, and the bag-making assembly 200 and the sealing assembly 300 are located below the medicine dispensing turntable; the bag-making assembly 200 includes a film pulling mechanism 2, an outer former 3, an inner former 4, and a sealing and cutting mechanism; the film pulling mechanism 2 acts on the vertical sealing edge of the vertically sealed film roll to drive the film roll to reciprocate along the upper bag path; the inner former 4 is arranged inside the outer former 3, and a forming space for the film roll to pass through is formed between the inner former 4 and the outer former 3; the sealing and cutting mechanism is arranged at the heat sealing position, and the sealing and cutting mechanism opens and closes to cut the film roll and heat seal the bottom edge of the film roll to form a film bag; the end of the outer former 3 close to the medicine dispensing turntable is a receiving part, and the receiving part receives the film bag at the heat sealing position. The outer former 3 can be switched between the heat sealing position and the upper bag position to lift the received film bag out of the range of the sealing and cutting mechanism.

[0055] The outer former 3 has a driving mechanism to drive the outer former 3 to switch between the heat sealing position and the upper bag position along the upper bag path of the film roll. In this embodiment, the medicine dispensing machine further includes a film roll rack 5 and a reversing mechanism. The film roll rack 5 is used to store the vertically sealed film roll, and the vertically sealed film roll is guided into the forming space through the reversing mechanism; the film pulling mechanism 2 includes at least one set of film pulling wheels. The film pulling wheels squeeze the vertical edge of the film roll and drive the film roll to move up and down through friction. In the specific use process, the film pulling wheels first drive a part of the film roll into the bag-supporting hole 1, and then the sealing and cutting mechanism acts on the film roll to make a film bag. Then the outer former 3 moves upward from the heat sealing position to receive the film bag and drives the film bag to the upper bag position, so that the film bag basically completely enters the bag-supporting hole 1, and the pressing mechanism in the bag-supporting hole 1 is used to fix the film bag. Thus, the bag-making and bag-loading of the film bag are completed. After that, the outer former 3 moves downward to reset, and the film pulling wheels move in the reverse direction to move the remaining film roll downward. Since the action of the sealing and cutting mechanism will flatten the mouth of this part of the film bag, the mouth of this part of the film bag can be re-opened by the inner former 4. In this embodiment, the up and down movement of the outer former 3 can be realized by a telescopic mechanism, a lead screw mechanism, a gear and rack mechanism, etc.

[0056] In this embodiment, the inner former 4 is a mandrel, which has the freedom to move up and down in the outer former 3. The medicine dispensing machine is provided with a limiting member 1 to prevent the mandrel from falling out of the outer former 3, so that the mandrel can be easily disassembled for maintenance. The limiting member 1 can be a pair of rotatable rollers. The medicine dispensing machine is also provided with a limiting member 2 6, and there can be multiple limiting members 2 6, which are used to stabilize and support the mandrel so that the mandrel has the freedom only in the direction of movement along the film bag.

[0057] like Figure 5 As shown, in this embodiment, the receiving portion includes a branch 1 7 and a branch 2 8 arranged on opposite sides, and the branch 1 7 and the branch 2 8 extend toward the direction of the medicine dispensing turntable, and there is a accommodating gap 9 between the branch 1 7 and the branch 2 8. Further, the distance between the branch 1 7 and the branch 2 8 gradually increases toward the direction of the medicine dispensing turntable. The accommodating gap 9 is in a trumpet shape facing the medicine dispensing turntable, so the accommodating gap 9 has an inclined side wall, and even if the lifting of the receiving portion causes the film bag to curl, the film bag can be driven. It should be noted that the bag-supporting hole 1 has a retaining structure, which can keep the film bag in an open state, so even if the bottom of the film bag curls, it can be kept in an open state after basically entering the bag-supporting hole 1 to meet the requirements of drug dispensing. Further, a sensor 1 is provided on one side of the bag-making component 200, which is used to detect whether a film bag is clamped in the bag-supporting hole 1 rotated to the bag-making component 200. If there is no film bag, the bag-making component 200 is started to make bags.

[0058] In this embodiment, if Figure 7 As shown, the sealing and cutting mechanism includes a heat sealing unit 1 and a heat sealing unit 2 which can move toward and away from each other. The heat sealing unit 1 includes a heating element and a cutter 10. The cutter 10 moves to cut the roll film. When the roll film is transported to the sealing and cutting mechanism, the sealing and cutting mechanism performs heat-sealing and transverse cutting on the roll film. The film bag above the cutter 10 has completed the bottom sealing, and the film bag below the cutter 10 is still only vertically sealed. In this embodiment, the heat sealing unit 1 and the heat sealing unit 2 move synchronously, which can clamp the film bag, and at the same time as heat sealing, the roll film is also cut by the cutter 10 at a certain position.

[0059] In this embodiment, the heat sealing unit 1 also includes a heat insulation board 11 and a sealing and cutting mold 12; the sealing and cutting mold 12 and the heat insulation board 11 are connected by a connector 13 to move synchronously relative to the heat sealing unit 2; in the axial direction of the core rod, the sealing and cutting mold 12 is located on the upper side of the heat insulation board 11, and there is an isolation belt between the two; the cutter 10 is arranged in the isolation belt. The heat sealing unit 2 includes a sealing and cutting mold 2 14, and the sealing and cutting mold 2 14 has a groove 15 that docks with the isolation belt. When the sealing and cutting mold 12 and the sealing and cutting mold 2 14 collide with each other, the cutter 10 continues to move and transitions from the isolation belt to the groove 15, thereby cutting the film bag in the groove 15, and at this time, it can be ensured that the cutter 10 can achieve cutting of the film bag. The side surfaces of the sealing and cutting mold 2 14 and the sealing and cutting mold 1 12 that are in relative contact have a serrated structure to better achieve film rolling stop. When the sealing and cutting mold 12 and the sealing and cutting mold 2 14 are in contact, the cutter 10 acts on the roll film to achieve cutting. During the cutting process, the isolation belt between the sealing and cutting mold 12 and the heat insulation board 11 can prevent heat from being transferred to the roll film below the cutter 10, thereby preventing the opening of this part of the roll film from being compressed and then being heat-sealed horizontally. It is known that the heat insulation board 11 can also clamp the roll film on the basis of heat insulation, that is, the end face of the heat insulation board 11 also has a serrated structure that matches the end face of the sealing and cutting mold 2 14. Furthermore, a heat insulation board 2 16 is arranged between the connector 13 and the sealing and cutting mold 1 12. During the driving process of the connector 13, the heat insulation board 2 16 moves synchronously, so that during the heat-sealing process, the film bag below the cutter 10 can be better prevented from being heat-sealed through the arrangement of the heat insulation board 11 and the heat insulation board 2 16.

[0060] Therefore, during specific bag making, the vertically sealed rolled film passes through the film roll holder 5 and the reversing mechanism in sequence, and then is inserted into the forming space and expanded. The vertical seal edge of the rolled film is pressed by the film pulling mechanism 2. The film pulling mechanism 2 operates, and through forward and reverse rotation, the rolled film moves up and down under the action of friction to achieve film feeding; the rolled film is below the sealing and cutting mechanism and remains in an open state. The film pulling mechanism 2 rotates forward to send the open rolled film into a bag supporting hole 1 of the upper bag turntable. The bag supporting hole 1 has the same function as the outer former 3 and always keeps the bag mouth open. Segmented black marks are set on the rolled film so that a sensor can detect the position of the film bag. Therefore, the height at which the film pulling mechanism 2 pulls into the bag supporting hole 1 stops when the sensor detects the next printed black mark; the sealing and cutting mechanism closes, and the toothed knife in the middle is pushed out to cut the rolled film; at this time, the bottom of the formed film bag at the upper part is flattened, and the length is greater than the inner cavity of the outer former 3. Therefore, the film bag can be lifted under the action of the outer former 3 to get out of the action range of the sealing and cutting mechanism. At this time, the pressing mechanism at the bag supporting hole 1 presses the fed film bag so that it does not fall off; while the outer former 3 lifts the bag, the film pulling mechanism 2 rotates in reverse to pull the lower rolled film downward, and under the action of the top end of the inner former 4, it is reopened and remains in an open state, waiting for the next bag to be loaded until multiple film bags on the upper bag turntable are loaded.

[0061] As Figures 8 to 10As shown, in this embodiment, the sealing assembly 300 includes a bag sealing mechanism and a bag transferring mechanism 17. The bag sealing mechanism opens and closes to seal the film bag. The bag transferring mechanism 17 opens and closes to pick up the film bag that has been filled with medicine in the bag supporting hole 1, and can switch between the bag clamping position and the sealing position, so that the bag transferring mechanism 17 transfers the film bag to the sealing position. In this embodiment, the bag transferring mechanism 17 can be realized by a manipulator. The bag transferring mechanism 17 in this embodiment is a clamping member, and can realize the up and down displacement through a telescopic mechanism, a lead screw mechanism or a rack and pinion mechanism, so as to meet the requirements of clamping and driving displacement of the film bag. When the film bag that has been filled with medicine is transferred to the sealing assembly 300 through the medicine dispensing turntable, first drive the bag transferring mechanism 17 to clamp the bottom of the film bag, then the pressing mechanism in the bag supporting hole 1 releases the film bag, and the bag transferring mechanism 17 moves the film bag to the sealing position, so that the mouth of the film bag is within the action range of the bag sealing mechanism, and then the bag sealing mechanism heat-seals the mouth of the film bag. After completion, the bag transferring mechanism 17 releases the film bag, and the film bag slides off the sliding bag plate 31 provided by the medicine dispensing machine, so that the medicine dispensing personnel can take out the film bag that has been filled with medicine and sealed. In order to better seal the film bag, the sealing assembly 300 further includes an inserting bag plate 18. The inserting bag plate 18 is arranged on one side of the bag sealing mechanism. The inserting bag plate 18 switches between the avoiding position and the cooperating position. The inserting bag plate 18 is provided with an inserting bag gap. When the inserting bag plate 18 switches from the avoiding position to the cooperating position, the inserting bag gap passes through the film bag to narrow the mouth of the film bag. When the film bag is in the sealing position, the inserting bag plate 18 is pushed out by a screw electric cylinder, and the inserting bag plate 18 passes through the entire sealing area of the film bag, so that the opened mouth is narrowed within the inserting bag gap of the inserting bag plate 18, so that no wrinkles are generated at the mouth of the film bag during sealing. After heat sealing is completed, the inserting bag plate 18 can be retracted.

[0062] In this embodiment, the bag sealing mechanism includes a bag pressing unit and a sealing unit. The bag pressing unit moves in an opening and closing manner to press the film bag at the sealing position in the pressing position. The sealing unit moves in an opening and closing manner to seal the pressed film bag. A linkage unit is arranged between the bag pressing unit and the sealing unit. The linkage unit drives the bag pressing unit and the sealing unit to move synchronously, and drives the sealing unit to continue to move when the bag pressing unit is closed. The linkage unit realizes the coordinated action of the bag pressing unit and the sealing unit in a mechanical structure manner. Compared with the separate driving method using the sensor 1, it effectively reduces the detection error and motion error caused by vibration, so as to better meet the specific working requirements of sequential bag pressing and sealing. Further, the bag pressing unit includes two relatively arranged bag pressing members 19, the sealing unit includes two relatively arranged sealing members 20, the bag pressing members 19 and the sealing members 20 are in one-to-one correspondence, and an intermediate member 21 is arranged between the bag pressing member 19 and the sealing member 20 on the same side. The bag pressing member 19 and the intermediate member 21 on the same side are slidably matched in the opening and closing direction. The linkage unit includes two movable members that can move relative to each other. The two movable members move in an opening and closing manner to drive the two bag pressing members 19 and the two sealing members 20 to move in an opening and closing manner. The sealing member 20 and the movable member on the same side are slidably matched in the opening and closing direction. An elastic member 1 22 is arranged between the bag pressing member 19 and the intermediate member 21 on the same side, and an elastic member 2 23 is arranged between the intermediate member 21 and the movable member on the same side.The opening and closing movement of the moving part can be realized by a gear-rack mechanism or a lead screw mechanism with two sections of threads in opposite directions. In this embodiment, let the two moving parts be moving part one 24 and moving part two 25 respectively. The linkage unit further includes a slide bar 26 and a moving part three 27. The moving part two 25 is located between the moving part one 24 and the moving part three 27. The moving part one 24, the moving part two 25, and the moving part three 27 are all slidably connected to the slide bar 26. For the sake of stability, there are two mutually parallel slide bars 26, that is, the moving part one 24, the moving part two 25, and the moving part three 27 are slidably connected to the two slide bars 26. The moving part one 24 and the moving part three 27 are fixedly connected by a connecting rod 32. That is to say, when the moving part three 27 slides along the slide bar 26, power is transmitted through the connecting rod 32 to make the moving part one 24 slide synchronously and in the same direction along the slide bar 26. The linkage unit further includes a cam 28, a power rod one 29, and a power rod two 30. One end of the power rod one 29 is hinged to the moving part two 25, and the other end is hinged to the cam 28. One end of the power rod two 30 is hinged to the moving part three 27, and the other end is hinged to the cam 28. The cam 28 is located between the moving part two 25 and the moving part three 27. Thus, when the cam 28 rotates around its own central axis, according to the rotation direction of the cam 28, the moving part two 25 and the moving part three 27 are driven to move towards each other or away from each other, so that the moving part one 24 and the moving part two 25 can move towards each other or away from each other. This structure is reasonable. On the basis of making rational use of the overall volume of the medicine dispenser, the thickness of the bag-sealing mechanism can be effectively reduced, thereby optimizing the structural layout of the medicine dispenser.

[0063] Therefore, in actual use, after the medicine bag in a certain bag-supporting hole 1 is filled with medicine, the medicine-dispensing turntable rotates to drive the medicine bag to one side of the bag-sealing mechanism. The bag-transfer mechanism 17 switches to the bag-clamping position, closes and clamps the bag. At the same time, the pressing mechanism releases the medicine bag. Without the clamping of the pressing mechanism, the medicine bag follows the bag-transfer mechanism 17 to switch to the sealing position. The sealing assembly 300 needs to perform two actions to complete the bag-sealing operation. The first action: The cam 28 rotates, causing the first moving rod and the second moving rod to drive the first moving member 24 and the second moving member 25 to move towards each other. At this time, the two bag-pressing members 19 close and cause the first elastic member 22 to have a certain amount of collapse and compression and then wait. When the vertical sealing edge of the medicine bag at the sealing position is tightly pressed by the bag-pressing member 19, the bag-inserting plate 18 passes through the entire sealing area of the medicine bag, so that the opened bag mouth is reduced within the bag-inserting gap of the bag-inserting plate 18, so that no wrinkles are generated at the bag mouth during sealing. The second action: The first moving member 24 and the second moving member 25 continue to drive, causing the two sealing members 20 to close until the second elastic member 23 collapses, thereby better realizing bag sealing. After the bag sealing is completed, the bag-inserting plate 18 retracts to the initial position, the cam 28 rotates in reverse, the two sealing members 20 separate, the second elastic member 23 recovers, then the two bag-pressing members 19 separate, the elastic members recover, and the sealing members 20 and the bag-pressing members 19 return to the initial position. Then the bag-transfer mechanism 17 opens, and the bag-transfer mechanism 17 moves below the bag-sliding plate 31. After the bag-transfer mechanism 17 opens, the medicine bag freely slides into the medicine-dropping frame under the medicine-dispensing machine under the action of gravity and the bag-sliding plate 31, and is taken out of the medicine-dispensing machine by the medicine-dispensing personnel.

[0064] Furthermore, the medicine-dispensing machine is also provided with a second sensor for detecting whether the medicine bag has fallen. If the medicine bag is not detected to have fallen after bag sealing, the medicine-dispensing personnel are prompted through the control system; if the medicine bag is detected to have fallen after bag sealing, the medicine-dispensing personnel are also prompted through the control system, and the medicine-dispensing personnel are prompted to pick up the bag. Finally, the printer prints out the prescription and is handed to the patient by the medicine-dispensing personnel together.

[0065] In this embodiment, N bag-supporting holes 1 are provided on the medicine-dispensing turntable along the rotation path of the medicine-dispensing turntable, where N is an integer greater than or equal to 2; the bag-making assembly 200 and the sealing assembly 300 are symmetrically arranged with respect to the axis of the medicine-dispensing turntable, and at least one medicine-dropping assembly is also provided on the rotation path of the medicine-dispensing turntable. It can be known that generally, in this embodiment, bag making can be carried out while dropping medicine, so that the bag-making time can be effectively saved. In this embodiment, bag making can also be carried out while sealing the bag, so that the bag-making time can be further saved. It can be known that each bag-supporting hole 1 is also correspondingly provided with a third sensor to obtain relevant information on whether a medicine bag is tightly pressed in the bag-supporting hole 1.

[0066] In this embodiment, the medicine-dispensing machine makes and seals bags by the following method:

[0067] Method 1: When the medicine - dispensing turntable rotates 360 / N° each time in the first direction, if there are film bags in more than N / 2 of the bag - supporting holes 1, and if Sensor 1 detects that there is no film bag in the bag - supporting hole 1 corresponding to the bag - making assembly 200, the bag - making assembly 200 is started to make bags, and at the same time, the sealing assembly 300 seals the film bags in the bag - supporting holes 1.

[0068] In Method 1, the rotation of the medicine - dispensing turntable makes the bag - supporting holes 1 arranged in a circular array correspond to the bag - making assembly 200 or the sealing assembly 300 one by one in the order of the first direction. The number of film bags in the medicine - dispensing turntable is obtained through Sensor 3. For example, let N be 28. When the number of film bags in the medicine - dispensing turntable is not less than 15 (including 15), the bag - making assembly 200 starts to make bags. At this time, there are multiple standby film bags for medicine - dispensing in the medicine - dispensing turntable, thus improving the medicine - dispensing efficiency.

[0069] Method 2: After the sealing assembly 300 seals two film bags continuously, the medicine - dispensing turntable rotates 180° in the first direction. Sensor 1 detects that there is no film bag in the bag - supporting hole 1 corresponding to the bag - making assembly 200 at this time, and the bag - making assembly 200 is started to make bags. At the same time, the sealing assembly 300 seals the film bags in the corresponding bag - supporting holes 1 at this time. Then the medicine - dispensing turntable rotates 360 / N° in the first direction and seals the film bags at the sealing assembly 300 at this time. Repeat the above steps to complete the sealing of all film bags.

[0070] In Method 2, the driving mode of the medicine - dispensing turntable is relatively jumpy, which can ensure that the bag - supporting holes 1 are replenished with film bags in time after the bags are removed, so as to ensure that there are a certain number of film bags in each medicine - dispensing process, thus ensuring the medicine - dispensing efficiency.

[0071] Both of the above - mentioned methods can effectively reduce the bag - making time, thus effectively improving the medicine - dispensing efficiency of the medicine - dispensing machine. The above two methods coexist. According to actual needs, the control system compares the time used by Method 1 and Method 2, and selects the one with the least time - consuming for medicine - dispensing. The control system is a computer.

[0072] The above is only the preferred embodiment of the present invention. It should be noted that the above - mentioned preferred embodiment should not be regarded as a limitation of the present invention. The protection scope of the present invention should be subject to the scope defined by the claims. For those of ordinary skill in the art in this technical field, without departing from the spirit and scope of the present invention, several improvements and retouches can still be made, and these improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. A medicine dispensing machine, characterized in that, It includes a medicine dispensing turntable, on which a plurality of bag supporting holes are arranged along the rotation path of the medicine dispensing turntable. A bag making assembly and a sealing assembly are arranged on the rotation path of the medicine dispensing turntable, and the bag making assembly and the sealing assembly are located on the lower side of the medicine dispensing turntable. The bag making assembly includes: A film pulling mechanism that acts on the vertical sealing edge of the vertically sealed roll film to drive the roll film to reciprocate along the upper bag path. An outer former and an inner former. The inner former is arranged inside the outer former, and a forming space for the roll film to pass through is formed between the inner former and the outer former. A sealing and cutting mechanism that is arranged at the heat sealing position. The sealing and cutting mechanism opens and closes to cut the roll film and heat seal the bottom edge of the roll film to form a film bag. Among them, the end of the outer former close to the medicine dispensing turntable is a receiving part. The receiving part receives the film bag at the heat sealing position. The outer former can be switched between the heat sealing position and the upper bag position to lift the received film bag out of the range of the sealing and cutting mechanism.

2. The medicine dispenser according to claim 1, wherein The receiving part includes a first branch and a second branch arranged oppositely. The first branch and the second branch extend towards the medicine dispensing turntable, and there is an accommodating gap between the first branch and the second branch.

3. The drug dispenser according to claim 2, wherein, The distance between the first branch and the second branch gradually increases towards the medicine dispensing turntable.

4. The medicine dispenser according to claim 1, wherein, The sealing assembly includes: A bag sealing mechanism that opens and closes to seal the film bag. A bag transferring mechanism that opens and closes to pick up the film bag that has completed medicine dispensing in the bag supporting hole and can be switched between the bag clamping position and the sealing position, so that the bag transferring mechanism transfers the film bag to the sealing position.

5. The drug dispenser according to claim 4, wherein, The sealing assembly further includes: An inserting bag plate that is arranged on one side of the bag sealing mechanism. The inserting bag plate is switched between the avoiding position and the cooperating position. The inserting bag plate is provided with an inserting bag gap. When the inserting bag plate is switched from the avoiding position to the cooperating position, the inserting bag gap passes through the film bag to narrow the mouth of the film bag.

6. The medicine dispenser according to claim 4, characterized in that, The bag sealing mechanism includes: A bag pressing unit that opens and closes to press the film bag located at the sealing position at the pressing position. A bag sealing unit that opens and closes to seal the pressed film bag. Among them, a linkage unit is arranged between the bag pressing unit and the bag sealing unit. The linkage unit drives the bag pressing unit and the bag sealing unit to move synchronously, and drives the bag sealing unit to continue to move when the bag pressing unit is closed.

7. The drug dispenser according to claim 6, wherein, The bag pressing unit includes two relatively arranged bag pressing parts. The bag sealing unit includes two relatively arranged bag sealing parts. The bag pressing parts and the bag sealing parts correspond one by one. An intermediate part is arranged between the bag pressing part and the intermediate part on the same side. The bag pressing part and the intermediate part on the same side are slidably matched in the opening and closing direction. The linkage unit includes two relatively movable moving parts. The two moving parts open and close to drive the two bag pressing parts and the two bag sealing parts to open and close. The bag sealing part and the moving part on the same side are slidably matched in the opening and closing direction. An elastic part one is arranged between the bag pressing part and the intermediate part on the same side, and an elastic part two is arranged between the intermediate part and the moving part on the same side.

8. A medicine dispenser according to any one of claims 1 to 7, characterized in that A sensor one is arranged on one side of the bag making assembly to detect whether there is a film bag clamped in the bag supporting hole rotated to the bag making assembly. If there is no film bag, the bag making assembly is started to make a bag.

9. The medicine dispenser according to claim 8, wherein, There are N bag-supporting holes arranged along the rotation path of the medicine-dispensing turntable, where N is an integer greater than or equal to 2; The bag-making assembly and the sealing assembly are symmetrically arranged with respect to the axis of the medicine-dispensing turntable, and at least one medicine-dropping assembly is also arranged on the rotation path of the medicine-dispensing turntable; The medicine dispenser makes and seals bags through the following method: Method 1: When the medicine-dispensing turntable rotates 360 / N° each time in the first direction, if there are film bags in more than N / 2 bag-supporting holes and the sensor 1 detects that there is no film bag in the bag-supporting hole corresponding to the bag-making assembly, the bag-making assembly is started to make a bag, and at the same time the sealing assembly seals the film bag in the bag-supporting hole; Method 2: After the sealing assembly continuously seals two film bags, the medicine-dispensing turntable rotates 180° in the first direction. The sensor 1 detects that there is no film bag in the bag-supporting hole corresponding to the bag-making assembly at this time, and the bag-making assembly is started to make a bag. At the same time, the sealing assembly seals the film bag in the corresponding bag-supporting hole at this time. Then the medicine-dispensing turntable rotates 360 / N° in the first direction to seal the film bag at the sealing assembly at this time. Repeat the above steps to complete the sealing of all film bags.

10. A medicine dispensing machine according to claim 9, characterized in that, Compare the time taken by Method 1 and Method 2, and select the one with the least time consumption for medicine dispensing.

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