CN115489778B

CN115489778B - Medicine packaging equipment

Info

Publication number: CN115489778B
Application number: CN202211357967.6A
Authority: CN
Inventors: 闫琳; 李淼; 张少华; 廖圣华; 龙会才; 于天水; 吉莹; 金晟中
Original assignee: Harbin Cooper Technology Co ltd
Current assignee: Harbin Cooper Technology Co ltd
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-06-30
Anticipated expiration: 2042-11-01
Also published as: CN115489778A

Abstract

The invention discloses a medicine packing device, comprising: the medicine discharging device comprises a shell, a medicine discharging device and a medicine discharging device, wherein a discharging channel is arranged in the shell, a medicine outlet communicated with the discharging channel is formed in the lower portion of the surface of the shell, a medicine basket is arranged in the discharging channel, and the medicine basket is rotatably arranged in the discharging channel; the bag placing mechanism is used for placing the plastic bags under the medicine basket, is arranged under the medicine basket and can move along the horizontal direction to enter or withdraw from the blanking channel; the bag opening mechanism is symmetrically arranged in the blanking channel and is used for clamping and pulling the unreeled plastic bags open from two sides to form a mouth and supporting the plastic bags; the conveying mechanism is arranged outside the shell, one end of the conveying mechanism is close to the medicine outlet and is used for conveying the plastic bag filled with the medicine bottle outwards; the invention realizes single-person single-frame sequential medicine taking, reduces the use of redundant medicine baskets, realizes the actions of automatic bag taking, bag opening and transferring output, reduces the error rate in the medicine taking process and improves the medicine taking efficiency.

Description

Medicine packaging equipment

Technical Field

The invention relates to the technical field of medical equipment, in particular to medicine packaging equipment.

Background

With the progress of technology, more and more pharmacies begin to use automatic medicine taking equipment, when taking medicines, medicine baskets are placed at medicine outlet, after medicine outlet is completed, medical staff need to take out medicine baskets filled with medicines, take out medicinal plastic bags, and put medicines in the medicine baskets into the plastic bags, in the process, the operation of taking the plastic bags back and forth and opening consumes time, and the medical staff frequently moves between the medicine outlet and a medicine taking window, so that medicine taking time is increased, and medicine taking efficiency is reduced; the medicine basket has a certain size, and in the process of pouring medicines into the plastic bag, the medicine is easy to fall off when operated by a single person; in order to save medicine taking time and distinguish medicines of different patients, a plurality of medicine baskets are used, which easily causes the problems of occupying excessive table surface area or taking medicines by mistake.

Disclosure of Invention

The invention mainly aims to provide medicine packing equipment, which aims to solve the existing technical problems.

To achieve the above object, the present invention provides a medicine packing apparatus comprising:

the medicine discharging device comprises a shell, a medicine discharging device and a medicine discharging device, wherein a discharging channel is arranged in the shell, a medicine outlet communicated with the discharging channel is formed in the lower portion of the surface of the shell, a medicine basket is arranged in the discharging channel, and the medicine basket is rotatably arranged in the discharging channel;

the bag placing mechanism is arranged below the medicine basket and can move into or out of the blanking channel along the horizontal direction and is used for placing the plastic bag under the medicine basket;

the bag opening mechanism is symmetrically arranged in the blanking channel, can move into or out of the blanking channel along the horizontal direction, is used for stretching into the blanking channel to clamp the unreeled plastic bags from two sides and generate negative pressure suction, and enables the plastic bags to open through dislocation movement and retract to enable the plastic bags to be fully opened and provide support;

and the conveying mechanism is arranged outside the shell, one end of the conveying mechanism is close to the medicine outlet and is used for conveying the plastic bag filled with the medicine bottle outwards.

Further, the bag placing mechanism comprises a U-shaped support, a rotatable roller is arranged on the U-shaped support, the roller is driven by a stepping motor to be placed in a rolling mode, the roller is driven in the horizontal direction by a first linear driving mechanism, the limiting position of the forward extending movement of the roller is located under the center of a medicine basket in the blanking channel, and the limiting position of the backward withdrawing movement of the roller is located outside the blanking channel.

Further, be equipped with the clamp plate with the laminating of roller activity on the U type support, the clamp plate passes through elastic telescopic link and U type leg joint, just the clamp plate both ends have integrated into one piece's bulge, bulge and rolling disc activity butt, be equipped with the arc arch that is circumference equidistance and distribute on the rolling disc, just the rolling disc is connected with the roller is coaxial, the rolling disc is with bulge intermittent type contact when unreeling plastics, and the clamp plate is the shape of beating and does not contact with the roller, the rolling disc is when unreeling plastics, clamp plate and laminating of roller.

Further, the bag opening mechanism comprises rectangular frames symmetrically arranged in the blanking channel, movable clamping plates are arranged in the rectangular frames and driven in the horizontal direction through a second linear driving mechanism, the clamping plates on two sides move in opposite directions through pushing rods, and at least two suckers are arranged on the upper portions of the surfaces of the clamping plates.

Further, the bag opening mechanism further comprises a supporting rod, the supporting rod is obliquely downwards arranged in the blanking channel towards the medicine outlet, the supporting rod moves through the blanking channel through a driving mechanism, the front end of the supporting rod is higher than the top of the clamping plate, and the length of the supporting rod is longer than that of the clamping plate;

the front end of the supporting rod is provided with a lug which is in an inclined plane structure, the position of the end part facing the front end of the supporting rod is high, and the lug is movably connected with the supporting rod through an embedded spring.

Further, a ventilation base is arranged at the bottom of the blanking channel, a fan is arranged on the ventilation base, and the fan blows upward air flow into the blanking channel to keep the appearance of the plastic bag.

Further, the conveying mechanism comprises a conveying belt arranged on the frame, and hook assemblies are arranged on the surface of the conveying belt at equal intervals and are used for conveying the plastic bags with medicines to the outside;

the limiting distance that the support rod bearing the plastic bag filled with the medicine stretches forward through the medicine outlet is positioned right above the hook component which is conveyed in an outward moving mode and is closest to the medicine outlet, and the plastic bag on the support rod is taken down through the hook component which moves in a circulating mode.

Further, the hook component comprises two sleeves connected with the conveying belt, movable blocks are inserted on the sleeves, integrally formed convex columns matched with the sleeves are arranged on the movable blocks, the movable blocks are connected through first springs, sliding grooves which can be mutually communicated are formed in the movable blocks, L-shaped hook blocks are arranged in the sliding grooves, one ends of the L-shaped hook blocks are connected with second springs arranged in the sliding grooves, and the opening direction of each L-shaped hook block is deviated from the setting of a medicine outlet when the L-shaped hook block moves to one side of the outward moving conveying.

Further, the L-shaped hook block is provided with a groove for limiting the movement of the plastic bag transferred from the support rod;

the front end of the supporting rod carrying the plastic bag filled with the medicine moves through the limit position of the medicine outlet and the vertical linear distance between the L-shaped hook block which is conveyed in an outward moving mode and is closest to the medicine outlet is smaller than 3cm.

Further, the conveyer belt is kept away from medicine outlet one end below and is equipped with the gear board, the gear board drives the rotation through gear motor, just have integrated into one piece's pin portion on the gear board, the pin portion rotates and can with the L type hook piece intermittent type contact that its top passed, keeps L type hook piece in relative static state during the contact of two.

The beneficial effects of the invention are as follows:

according to the invention, after the medicine taking of a unit patient is completed through the use of the single medicine basket, medicines are poured into the plastic bags synchronously unreeled and unfolded in the medicine taking process, the plastic bags filled with the medicines are led out outwards subsequently, the positions of the plastic bags are transferred, and finally the plastic bags are conveyed to medical staff positioned at a medicine taking window, so that the packing and conveying operation of the medicines is completed, single-person single-frame sequential medicine taking is realized, the use of redundant medicine baskets is reduced, the actions of automatic bag taking, bag opening and transferring output are realized, the error rate in the medicine taking process is reduced, and the medicine taking efficiency is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of the whole structure of the blanking channel according to the present invention;

FIG. 3 is a schematic diagram of the internal structure of the blanking channel of the present invention;

FIG. 4 is a schematic diagram of the bag releasing mechanism and the bag opening mechanism according to the present invention;

FIG. 5 is a schematic view of a roll structure according to the present invention;

FIG. 6 is a schematic top view of a hook assembly of the present invention;

fig. 7 is a schematic view of a longitudinal sectional structure of the present invention.

Reference numerals illustrate:

100. a housing; 101. a blanking channel; K. a medicine outlet; 102. a medicine basket; 103. a rotating motor; 104. a ventilation base; 105. a fan; 106. a striker plate; 107. a protective cover; 200. a roller; 201. a U-shaped bracket; 202. a stepping motor; 203. a clamping plate; 204. a push rod; 205. a rectangular frame; 206. a second linear driving mechanism; 207. a support rod; 2071. a bump; 208. a driving mechanism; 209. a first linear driving mechanism; 210. a pressing plate; 211. an elastic telescopic rod; 212. a rotating disc; 300. a conveyor belt; 301. a sleeve; 302. a movable block; 303. a first spring; 304. l-shaped hook blocks; 305. a second spring; 306. a gear plate; 307. a gear motor.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. Embodiments and features of embodiments in this application may be combined with each other without conflict. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, "a plurality of" means two or more. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary that the combination of the technical solutions should be regarded as not existing when the combination of the technical solutions contradicts or cannot be realized on the basis of the realization of those skilled in the art.

Referring to fig. 1 to 3, a medicine packing apparatus of the present invention includes:

a shell 100, wherein a blanking channel 101 is arranged in the shell, a medicine outlet K communicated with the blanking channel 101 is arranged at the lower part of the surface of the shell 100, a medicine basket 102 is arranged in the blanking channel 101, and the medicine basket 102 is rotatably arranged in the blanking channel 101; specifically, the medicine basket 102 is driven to rotate by the rotating motor 103, the surface of the medicine basket 102 is provided with a mounting block, and the medicine basket 102 rotates 180 degrees in the blanking channel 101, so that medicine pouring operation is realized.

The bag placing mechanism is arranged below the medicine basket 102 and can move into or out of the blanking channel 101 along the horizontal direction, and is used for placing a plastic bag (the plastic bag applicable to the bag placing mechanism is a waistcoat type plastic bag) to be placed under the medicine basket 102;

the bag opening mechanism is symmetrically arranged in the blanking channel 101, can move into or out of the blanking channel 101 along the horizontal direction, is used for stretching into the blanking channel 101 to clamp the unreeled plastic bags from two sides and generate negative pressure suction, and enables the plastic bags to open through dislocation movement and retract to enable the plastic bags to be fully opened and provide support;

and the conveying mechanism is arranged outside the shell 100, one end of the conveying mechanism is close to the medicine outlet K and is used for conveying the plastic bag filled with the medicine bottle outwards.

The device is arranged at the medicine outlet of the traditional intelligent medicine taking device, namely, the medicine taken out can fall into the medicine basket 102 as many as possible, in the medicine falling process, the bag placing mechanism horizontally moves into the blanking channel 101 and outwards releases the plastic bags, the plastic bags which are released to droop are clamped from two sides through the bag opening mechanism and are opened through dislocation movement, then the plastic bags are pulled to two sides, the plastic bags are opened and supported, after the medicine taking of a unit patient is finished, the medicine basket 102 is turned downwards for 180 degrees, the medicine is poured into the opened plastic bags, and then is output outwards through the medicine outlet K and transferred onto the conveying mechanism until the medicine taking window where medical staff is located is conveyed, medicine packing and conveying operation is completed, single-person single-frame sequential medicine taking is realized, the use of redundant medicine baskets is reduced, automatic bag taking and bag opening and transferring output actions are realized, the error rate in the medicine taking process is reduced, and the medicine taking efficiency is improved.

Preferably, an inclined baffle 106 is arranged in the blanking channel 101 and is positioned below the side of the rotation direction of the medicine basket 102, and is used for guiding the poured medicine to accurately fall into the plastic bag.

In an embodiment, referring to fig. 4 and 5, the bag releasing mechanism includes a U-shaped bracket 201, a rotatable roller 200 is disposed on the U-shaped bracket 201, the roller 200 is driven by a stepping motor 202 to release the bag, the roller 200 is driven by a first linear driving mechanism 209 along a horizontal direction, a limit position of the extending movement of the roller 200 is located under the center of the medicine basket 102 in the blanking channel 101, and a limit position of the retracting movement is located outside the blanking channel 101.

The first linear drive mechanism 209 may employ a linear cylinder.

The plastic bag is wound on the winding roller 200, when the medicine taking work starts, the first linear driving mechanism 209 pushes the winding roller 200 into the blanking channel 101 until the medicine is pushed to the position right below the center of the medicine basket 102, then the stepping motor 202 drives the winding roller 200 to rotate, the wound plastic bag is unwound and is singly wound, and the unwound plastic bag is in a naturally drooping state in the blanking channel 101, so that the bag unwinding work is completed.

Preferably, a maintenance opening (not shown) opposite to the bagging mechanism is formed on the surface of the housing 100, so as to facilitate the replenishment of the plastic bag on the winding roller 200 or the maintenance of the related structure.

In an embodiment, referring to fig. 5, a pressing plate 210 movably attached to the roller 200 is disposed on the U-shaped bracket 201, the pressing plate 210 is connected to the U-shaped bracket 201 through an elastic telescopic rod 211, two ends of the pressing plate 210 are provided with integrally formed protruding portions, the protruding portions movably abut against the rotating disc 212, arc-shaped protrusions distributed at equal intervals on the circumference are disposed on the rotating disc 212, the rotating disc 212 is coaxially connected with the roller 200, the rotating disc 212 intermittently contacts with the protruding portions when unreeling plastic, the pressing plate 210 is jumping and does not contact with the roller 200, and the pressing plate 210 is attached to the roller 200 when unreeling plastic.

In this way, in the process of unreeling by rotating the roll 200, the rotating disc 212 rotates synchronously along with the rotation of the roll 200, so that the arc-shaped protrusions on the rotating disc 212 are in intermittent high-speed contact with the protruding parts at the two ends of the pressing plate 210, the pressing plate 210 is in a jumping state under the cooperation of the elastic telescopic rod 211, the surface of the roll 200 is kept in a separated state, the unreeling process is ensured to be smoothly carried out, after unreeling operation is finished, the pressing plate 210 resets under the action of the elastic telescopic rod 211 and is attached to the surface of the roll 200, the plastic bags on the roll 200 are covered and limited, and the problem of loose release of the plastic bags is avoided.

In an embodiment, referring to fig. 2-4, the bag opening mechanism includes a rectangular frame 205 symmetrically disposed in the blanking channel 101, a movable clamping plate 203 is disposed in the rectangular frame 205, the clamping plate 203 is driven in a horizontal direction by a second linear driving mechanism 206, the clamping plates 203 on both sides are moved in opposite directions by a push rod 204, and at least two suction cups (not shown) are disposed on the upper portion of the surface of the clamping plate 203.

The second linear drive mechanism 206 may employ a linear cylinder and the push rod 204 may employ an electric linear cylinder.

After the plastic bag is unreeled to be in a sagging state, the second linear driving mechanism 206 brings the clamping plates 203 on two sides close to the plastic bag and clamps the plastic bag, in the process of clamping and forming pressure, the sucking discs on the surfaces of the clamping plates 203 and the plastic bag generate negative pressure suction, the push rod 204 pushes the clamping plates 203 with two sides connected independently to the opposite directions, so that the mouth of the plastic bag is rubbed off, and then the second linear driving mechanism 206 drives the clamping plates 203 on two sides to retract, so that the plastic bag is completely pulled open, and the medicine is conveniently dropped.

Preferably, the suction cup can be a suction cup with a negative pressure mechanism, so that the suction force can be conveniently adjusted, and the clamping plate 203 can be efficiently attached to and detached from the plastic bag.

In an embodiment, referring to fig. 4, the bag opening mechanism further includes a support rod 207, the support rod 207 is disposed in the blanking channel 101 obliquely downward toward the medicine outlet K, the support rod 207 moves through the blanking channel 101 by a driving mechanism 208, the front end of the support rod 207 is higher than the top of the clamping plate 203, and the length of the support rod 207 is longer than the length of the clamping plate 203;

wherein, the front end of the supporting rod 207 is provided with a bump 2071, the bump 2071 is in an inclined plane structure, wherein, the end position facing the front end of the supporting rod 207 is high, and the bump 2071 is movably connected with the supporting rod 207 through an embedded spring.

The drive mechanism 208 may employ a linear cylinder.

When the plastic bag is completely pulled open, the driving mechanism 208 pushes the supporting rod 207 into the blanking channel 101, the supporting rod 207 sequentially passes through two lifting parts on the plastic bag and contacts with the two lifting parts to form supporting force in the process of stretching the supporting rod 207 into the blanking channel 101, at the moment, suction force generated by the clamping plates 203 on two sides is used for keeping the bag mouth of the plastic bag in an open state, after the medicine completely falls down, the supporting rod 207 is driven to move forward again, and the supporting rod 207 stretches out outwards through the discharging hole K, in the process, the clamping plates 203 are separated from the plastic bag, at the moment, the supporting rod 207 is in an inclined arrangement, after the clamping plates 203 on two sides are separated from the plastic bag, the lifting parts at different positions on the supporting rod 207 slide together, and finally the lifting parts slide to the position of the protruding block 2071 to be limited.

In an embodiment, referring to fig. 2 and 3, a ventilation base 104 is disposed at the bottom of the blanking channel 101, and a fan 105 is disposed on the ventilation base 104, and the fan 105 blows upward air into the blanking channel 101 to maintain the shape of the plastic bag. By the arrangement of the fan 105, it is convenient to blow upward air flow into the blanking passage 101 before the plastic bag is completely opened and before the support bar 207 forms a supporting force with it, so that the two pulling parts of the plastic bag are kept in a vertical state, and the support bar 207 can pass through between the two pulling parts.

In one embodiment, referring to fig. 6 and 7, the conveying mechanism comprises a conveying belt 300 mounted on the rack, and hook assemblies are equidistantly arranged on the surface of the conveying belt 300 and are used for conveying the plastic bags with medicines to be output outwards;

wherein, the limit distance that the support rod 207 carrying the plastic bag filled with medicine stretches forward through the medicine outlet K is positioned right above the hook component which is conveyed in an outward moving way and is closest to the medicine outlet, and the plastic bag on the support rod 207 is taken down through the hook component which moves in a circulating way.

After the plastic bag filled with medicines is conveyed outwards through the supporting rod 207, when the supporting rod 207 extends forwards to a limiting distance, the hook component just moves to the lower side of the supporting rod, the hook component can be contacted with the lifting part on the plastic bag and is hooked along the conveying direction, as the protruding block 2071 is connected with the supporting rod 207 through the spring, the protruding block 2071 can retract towards the inside of the supporting rod 207 under the action of pressure, the lifting part breaks through the blocking of the protruding block 2071 under the driving of the hook component, and then is transferred to the hook component, and then is conveyed forwards to a medicine taking through hole.

Preferably, the end of the conveying mechanism close to the discharge hole K is provided with a protective cover 107 connected with the shell 100, so that a certain protection effect is provided.

In an embodiment, referring to fig. 6, the hook assembly includes two sleeves 301 connected to the conveying belt 300, the sleeves 301 are respectively inserted with a movable block 302, the movable blocks 302 are provided with integrally formed protruding columns matched with the sleeves 301, the movable blocks 302 are connected through first springs 303, the movable blocks 302 are provided with sliding grooves capable of being mutually communicated, an L-shaped hook block 304 is arranged in each sliding groove, one end of each L-shaped hook block 304 is connected with a second spring 305 arranged in each sliding groove, and the opening direction of each L-shaped hook block 304 is deviated from the medicine outlet K when the L-shaped hook block 304 moves to one side of outward moving conveying.

The movable blocks 302 are connected through the first springs 303, are convenient to move to arc-shaped route positions at two ends of the conveying belt 300, maintain tension of the structure, avoid the problem that circular movement is difficult to occur, are connected with the sleeve 301 in a plug-in mode, are convenient to take down, and are added with L-shaped hook blocks 304 in proper quantity according to requirements.

After the plastic bag filled with the medicine is conveyed outwards through the supporting rod 207, when the supporting rod 207 extends forwards to a limiting distance, the L-shaped hook block 304 just moves to the lower side of the supporting rod, the L-shaped hook block 304 can be contacted with a lifting part on the plastic bag and hooked in the conveying direction, and the plastic bag of the supporting rod 207 is transferred to the L-shaped hook block 304 along with continuous movement, so that position transfer is realized.

In one embodiment, referring to fig. 6, the l-shaped hook block 304 is provided with a groove for restricting movement of the plastic bag transferred from the support bar 207; the setting is convenient for after the plastic bag shifts to L type hook piece 304 on like this, and the lifting portion can receive the spacing of recess, avoids in the removal in-process, and the plastic bag takes place from the problem of slippage on the L type hook piece 304.

Wherein, the vertical straight line distance between the limit position of the front end of the supporting rod 207 carrying the medicine plastic bag moving through the medicine outlet K and the L-shaped hook block 304 which is outwards moved and conveyed and is closest to the medicine outlet is less than 3cm. The arrangement is convenient for the L-shaped hook block 304 which is passed through after the support rod 207 conveys the plastic bag filled with medicines forward to the limit position, the L-shaped hook block can smoothly contact with the lifting part on the plastic bag and realize the position transfer of the plastic bag.

In an embodiment, referring to fig. 6 and 7, a gear plate 306 is disposed below an end of the conveyor belt 300 away from the medicine outlet K, the gear plate 306 is driven to rotate by a gear motor 307, and the gear plate 306 has an integrally formed stop lever portion, and the stop lever portion rotates to intermittently contact with the L-shaped hook block 304 passing over the stop lever portion, so that the L-shaped hook block 304 is kept in a relatively stationary state during the contact between the stop lever portion and the L-shaped hook block 304.

When the plastic bag transferred to the L-shaped hook block 304 moves to the medicine taking window, the baffle plate 306 is contacted with the moving L-shaped hook block 304, and along with the rotation of the baffle plate 306, the baffle rod part on the baffle plate pushes the L-shaped hook block 304 along the sliding chute on the movable block 302 to move in the opposite direction, and at the moment, the second spring 305 is in a stretching state, so that the plastic bag filled with medicines is kept in a relatively static state, and a medical staff can conveniently take down the plastic bag from the L-shaped hook block 304, so that the problem of unsmooth taking due to the continuous movement of the plastic bag along with the L-shaped hook block 304 is avoided; the subsequent continuous rotation of the gear plate 306 is separated from the L-shaped hook block 304, and at this time, the L-shaped hook block 304 is reset under the action of the second spring 305, so as to continue the subsequent movement.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims

1. A pharmaceutical packaging apparatus, comprising:

a blanking channel (101) is arranged in the shell (100), a medicine outlet communicated with the blanking channel (101) is formed in the lower part of the surface of the shell (100), a medicine basket (102) is arranged in the blanking channel (101), and the medicine basket (102) is rotatably arranged in the blanking channel (101);

the bag placing mechanism is arranged below the medicine basket (102) and can move into or out of the blanking channel (101) along the horizontal direction, and is used for placing the plastic bag under the medicine basket (102);

the bag opening mechanism is symmetrically arranged in the blanking channel (101) and can move into or out of the blanking channel (101) along the horizontal direction, and is used for stretching into the blanking channel (101) to clamp the unreeled plastic bag from two sides and generate negative pressure suction, so that the plastic bag is opened through dislocation movement, and then is retracted through horizontal movement to enable the plastic bag to be completely opened and provide support;

the conveying mechanism is arranged at the outer side of the shell (100), one end of the conveying mechanism is close to the medicine outlet and is used for conveying the plastic bag filled with the medicine bottle outwards;

the bag opening mechanism comprises rectangular frames (205) symmetrically arranged in the blanking channel (101), movable clamping plates (203) are arranged in the rectangular frames (205), the clamping plates (203) are driven in the horizontal direction through second linear driving mechanisms (206), the clamping plates (203) on two sides move in opposite directions through push rods (204), and at least two suckers are arranged on the upper parts of the surfaces of the clamping plates (203);

the bag opening mechanism further comprises a supporting rod (207), the supporting rod (207) is obliquely downwards arranged in the blanking channel (101) towards the medicine outlet, the supporting rod (207) moves through the blanking channel (101) through a driving mechanism (208), the front end of the supporting rod (207) is higher than the top of the clamping plate (203), and the length of the supporting rod (207) is longer than that of the clamping plate (203);

the front end of the supporting rod (207) is provided with a lug (2071), the lug (2071) is in an inclined plane structure, the end part of the lug, which faces the front end of the supporting rod (207), is high, and the lug (2071) is movably connected with the supporting rod (207) through an embedded spring;

the conveying mechanism comprises a conveying belt (300) arranged on the frame, wherein hook assemblies are equidistantly arranged on the surface of the conveying belt (300) and are used for conveying plastic bags with medicines to the outside;

wherein, the limit distance that the support rod (207) carrying the medicine plastic bag extends forward through the medicine outlet is positioned right above the hook component which is conveyed outwards in a moving way and is closest to the medicine outlet, and the plastic bag on the support rod (207) is taken down through the hook component which moves circularly;

the hook assembly comprises two sleeves (301) connected with a conveying belt (300), movable blocks (302) are inserted on the sleeves (301), integrally formed convex columns matched with the sleeves (301) are arranged on the movable blocks (302), the movable blocks (302) are connected through first springs (303), sliding grooves capable of being communicated with each other are formed in the movable blocks (302), L-shaped hook blocks (304) are arranged in the sliding grooves, one ends of the L-shaped hook blocks (304) are connected with second springs (305) arranged in the sliding grooves, and the opening directions of the L-shaped hook blocks (304) deviate from the drug outlet when the L-shaped hook blocks (304) move to one side of the outward moving conveying.

2. A pharmaceutical packaging apparatus as recited in claim 1, wherein: the bag placing mechanism comprises a U-shaped support (201), a rotatable roller (200) is arranged on the U-shaped support (201), the roller (200) is driven by a stepping motor (202) to be placed in a rolling mode, the roller (200) is driven in the horizontal direction by a first linear driving mechanism (209), the limiting position of the roller (200) extending forwards is located under the center of a medicine basket (102) in a blanking channel (101), and the limiting position of the roller moving backwards is located outside the blanking channel (101).

3. A pharmaceutical packaging apparatus as recited in claim 2, wherein: the utility model discloses a coil roller, including U type support (201), U type support (201) are last be equipped with clamp plate (210) of coil roller (200) activity laminating, clamp plate (210) are connected with U type support (201) through elasticity telescopic link (211), just clamp plate (210) both ends have integrated into one piece's bulge, bulge and rolling disc (212) activity butt, be equipped with the arc arch that is circumference equidistance and distribute on rolling disc (212), just rolling disc (212) are connected with coil roller (200) is coaxial, rolling disc (212) are in contact with bulge interval when unreeling plastics, clamp plate (210) are the shape of beating and do not contact with coil roller (200), rolling disc (212) are when unreeling plastics, clamp plate (210) laminating with coil roller (200).

4. A pharmaceutical packaging apparatus as recited in claim 1, wherein: the blanking channel (101) bottom is equipped with ventilation base (104), be equipped with fan (105) on ventilation base (104), fan (105) blow upward air current to blanking channel (101) in and keep the appearance of plastic bag.

5. A pharmaceutical packaging apparatus as recited in claim 1, wherein: the L-shaped hook block (304) is provided with a groove for limiting the movement of the plastic bag transferred from the support rod (207);

the front end of the supporting rod (207) carrying the medicine plastic bag moves through the limit position of the medicine outlet and the vertical straight line distance between the L-shaped hook block (304) which is conveyed in an outward moving mode and is closest to the medicine outlet is smaller than 3cm.

6. A pharmaceutical packaging apparatus as claimed in claim 1 or 5, wherein: the conveying belt (300) is provided with a gear plate (306) below one end far away from the medicine outlet, the gear plate (306) is driven to rotate through a gear motor (307), the gear plate (306) is provided with a stop lever part which is integrally formed, the stop lever part rotates to intermittently contact with an L-shaped hook block (304) passing above the stop lever part, and the L-shaped hook block (304) is kept in a relatively static state during the contact of the stop lever part and the L-shaped hook block.