阅读说明：本技术 一种中药颗粒定量调配设备的制袋装置 (Bag making device of quantitative traditional Chinese medicine particle preparing equipment ) 是由 不公告发明人 于 2020-05-22 设计创作，主要内容包括：本发明实施例公开了一种中药颗粒定量调配设备的制袋装置,包括膜存储机构、第一塑膜件、塑膜芯、第二塑膜件、侧封机构、膜驱动机构、底封机构和剪断机构；所述膜存储机构用于存放制袋膜；所述侧封机构用于将制袋膜的侧边进行封口；所述底封机构用于将制袋膜的底边进行封口；所述剪断机构用于将预定长度的药袋剪断。采用本发明,制成的药袋与制袋膜剪断后上部开口保持张开,在后续的配药工作中,中药颗粒可以从药瓶直接落入开口的药袋中,无需额外的中药颗粒导向件,避免了配药过程中不同种类的中药颗粒与导向件接触而造成药物污染。(The embodiment of the invention discloses a bag making device of quantitative traditional Chinese medicine particle blending equipment, which comprises a film storage mechanism, a first plastic film piece, a plastic film core, a second plastic film piece, a side sealing mechanism, a film driving mechanism, a bottom sealing mechanism and a shearing mechanism, wherein the film storage mechanism is arranged on the bottom of the bag making device; the film storage mechanism is used for storing bag making films; the side sealing mechanism is used for sealing the side edge of the bag making film; the bottom sealing mechanism is used for sealing the bottom edge of the bag making film; the cutting mechanism is used for cutting off the medicine bags with preset lengths. By adopting the invention, the prepared medicine bag and the bag making film are cut off, the upper opening is kept open, and in the subsequent medicine dispensing work, the traditional Chinese medicine particles can directly fall into the opened medicine bag from the medicine bottle without an additional traditional Chinese medicine particle guide piece, so that the medicine pollution caused by the contact of different types of traditional Chinese medicine particles and the guide piece in the medicine dispensing process is avoided.)

1. A bag making device of traditional Chinese medicine particle quantitative allocation equipment is characterized by comprising a film storage mechanism, a first plastic film piece, a plastic film core, a second plastic film piece, a side sealing mechanism, a film driving mechanism, a bottom sealing mechanism and a shearing mechanism; wherein the film storage mechanism is used for storing bag making films;

the tail end of the first plastic film piece is connected with the plastic film core and used for gradually bending the bag making film from two sides and coating the plastic film core;

the second plastic film piece is positioned below the first plastic film piece, sleeved on the periphery of the plastic film core and used for carrying out secondary molding on the bag-making film;

the side sealing mechanism is arranged below the second plastic film piece and is used for sealing the side edge of the bag making film;

the bottom sealing mechanism is arranged below the plastic film core and is used for sealing the bottom edge of the bag making film;

the cutting mechanism is arranged below the bottom sealing mechanism and is used for cutting off the medicine bag with a preset length;

the film driving mechanism drives the bag making film to sequentially pass through the first plastic film piece, the second plastic film piece, the side sealing mechanism, the bottom sealing mechanism and the shearing mechanism.

2. The bag making apparatus of quantitative dispensing equipment for Chinese medicine granules as claimed in claim 1, wherein the first plastic film member includes a guide surface for guiding the forming of the bag making film.

3. The bag making apparatus of quantitative preparing apparatus for Chinese herbal medicine granule as set forth in claim 2, wherein the first plastic film member further comprises edge guide grooves and position-limiting strips, the edge guide grooves are provided at both side edges of the guide surface, and the position-limiting strips are provided above the guide surface.

4. The bag making apparatus of a quantitative dispensing apparatus for Chinese medicinal granules of claim 1, wherein said second molding member comprises an annular guide member.

5. The bag making apparatus for quantitatively dispensing Chinese medicinal particles as set forth in claim 4, wherein the upper end of said ring-shaped guide member is provided with an outer edge guide slope, a side seal guide slope is provided at a position corresponding to the side seal of the medicine bag, and a side seal opening is provided below said side seal guide slope.

6. The bag making apparatus of quantitative dispensing equipment for Chinese herbal medicine granules according to claim 5, wherein the second plastic film member further comprises a second plastic film base having the side seal opening, the second plastic film base is provided with an opening fixing block, the second plastic film base is provided with fixing pins, the opening fixing block is provided with positioning holes, and the opening fixing holes fix the fixing pins at two sides of the side seal opening through the positioning holes, so as to ensure that the side seal opening has a predetermined gap.

7. The bag-making apparatus of quantitative dispensing equipment for Chinese medicinal granules according to claim 1, wherein the horizontal cross-section of said plastic film core is rectangular or trapezoidal.

8. The bag making apparatus of quantitative dispensing equipment for Chinese medicine granules as claimed in claim 1, further comprising a third plastic film member, wherein said third plastic film member is disposed between the second plastic film member and the side sealing mechanism, and said third plastic film member comprises a first side molding plate and a second side molding plate which are disposed in a staggered manner.

9. The bag making apparatus of quantitative dispensing equipment for Chinese medicine granules as claimed in claim 1, wherein said side sealing mechanism comprises a side sealing block, and said side sealing block is connected to a side sealing driving mechanism.

10. The bag making apparatus of quantitative dispensing equipment for Chinese medicine granules as claimed in claim 1, wherein said bottom sealing mechanism comprises bottom sealing blocks symmetrically arranged, said cutting mechanism comprises scissors, and said bottom sealing blocks and scissors are connected to the symmetrical driving mechanism.

11. The bag making apparatus of quantitative dispensing equipment for Chinese medicine granules as claimed in claim 10, wherein said symmetrical driving mechanism comprises a guide rail, a slider, a fish eye bearing, a connecting member, a crank and a first motor; the guide rail is fixed on the frame, and the sliding block is arranged on the guide rail and can freely slide along the guide rail; the connecting piece is hinged on the rack and is hinged with the sliding block through the fisheye bearing; the connecting piece is further provided with a slotted hole, the first motor is connected with the crank, and one end of the crank extends into the slotted hole.

12. The bag making apparatus of quantitative dispensing equipment for Chinese medicine granules as claimed in claim 1, wherein said film driving mechanism comprises driving wheels symmetrically disposed at both sides of said plastic film core, a synchronizing gear connected to said driving wheels and a second motor for driving said synchronizing gear.

13. The bag making apparatus of quantitative preparing apparatus for Chinese herbal medicine particles as claimed in any one of claims 1 to 12, wherein a dispensing tray and a fixing frame are further provided below the cutting mechanism, the fixing frame is provided in the dispensing tray, during the bag making process, a fixing frame is located right below the plastic film core, the medicine bag is driven by the film driving mechanism to extend into the fixing frame, the cutting mechanism separates the medicine bag from the bag making film above the medicine bag after the medicine bag extends into the fixing frame by a predetermined depth, and the upper opening of the medicine bag is open.

Technical Field

The invention relates to quantitative traditional Chinese medicine particle preparing equipment, in particular to a bag making device of the quantitative traditional Chinese medicine particle preparing equipment.

Background

Chinese medicine culture has long source and rich Chinese medicine resource. However, in the export amount of traditional Chinese medicines all over the world, China only accounts for a small part, and the main reason is that China still adopts the traditional medicine dispensing mode of original crude medicines, hand grasping and weighing, the speed is low in the traditional Chinese medicine dispensing process, the metering error is large, and the international market of standardization, standardization and scientification of medicine dispensing is difficult to meet.

Along with the scientific and technological development, some hospitals begin to use mechanical automatic medicine dispensing, in order to satisfy the demand that mechanized medicine dispensing, current medicine dispensing machine adopts the fixed medicine box of shape, and traditional chinese medicine is sealed through the plastic film to the medicine box surface after packing into the medicine box. However, the medicine box occupies a large space, has high cost and is inconvenient to carry, and if a bag-packed mode is used, the cost can be saved and the medicine box is convenient to carry.

The prior bag packaging methods mainly comprise two types, firstly, the opening of the packaging bag is opened by using a vacuum chuck and other modes before dispensing by using the prepared packaging bag in batches, but the method has complicated mechanical structure and uncontrollable opening effect, and the dispensing leakage is easily caused by incomplete opening. On the other hand, the vacuum chuck has high noise, influences the work of doctors and does not meet the use requirements of hospital pharmacy. The other opening method is to open the bag mouth by using a structure similar to a funnel shape, but the mechanism for opening the bag mouth can pollute the medicine bag and is not suitable for the pharmacy dispensing field with continuously changed formulas.

And the second is to wrap the surface of the product directly by using a packaging film and then seal the product into a bag. The method is only used in the packaging scene that the shape and the size of the product to be packaged are fixed, but the dispensing and packaging of the traditional Chinese medicine particles are influenced by medical orders, and the conditions of different people are different, so the packaging method is not suitable for use.

In summary, it is urgently needed to provide a bag making device to make a packaging bag meeting the requirements.

Disclosure of Invention

The invention aims to solve the technical problem of providing a bag making device of quantitative dispensing equipment for traditional Chinese medicine particles, which can stably make a bag, the opening of the medicine bag is opened after the medicine bag is made, a cavity is formed inside the medicine bag, and subsequent automatic dispensing is convenient.

The invention aims to solve the technical problem of providing a bag making device of traditional Chinese medicine particle quantitative allocation equipment, which can be used for cutting a medicine bag into a fixing frame and then cutting the medicine bag and a bag making film on the upper part, and can make medicines immediately after bag making is finished, thereby simplifying the process, saving the medicine making time and improving the medicine making efficiency.

In order to solve the technical problem, the invention provides a bag making device of quantitative traditional Chinese medicine particle blending equipment, which comprises a film storage mechanism, a first plastic film piece, a plastic film core, a second plastic film piece, a side sealing mechanism, a film driving mechanism, a bottom sealing mechanism and a shearing mechanism, wherein the film storage mechanism is arranged on the bottom sealing mechanism; the film storage mechanism is used for storing bag making films;

the tail end of the first plastic film piece is connected with the plastic film core and used for gradually bending the bag making film from two sides and coating the plastic film core;

the second plastic film piece is positioned below the first plastic film piece, sleeved on the periphery of the plastic film core and used for carrying out secondary molding on the bag-making film;

the side sealing mechanism is arranged below the second plastic film piece and is used for sealing the side edge of the bag making film;

the bottom sealing mechanism is arranged below the plastic film core and is used for sealing the bottom edge of the bag making film;

the cutting mechanism is arranged below the bottom sealing mechanism and is used for cutting off the medicine bag with a preset length;

the film driving mechanism drives the bag making film to sequentially pass through the first plastic film piece, the second plastic film piece, the side sealing mechanism, the bottom sealing mechanism and the shearing mechanism.

As a modification of the above aspect, the first molding member includes a guide surface for guiding the bag-making film formation.

As an improvement of the scheme, the first plastic film piece further comprises edge guide grooves and limiting strips, the edge guide grooves are formed in the edges of the two sides of the guide surface, and the limiting strips are arranged above the guide surface.

As a modification of the above, the second molding member includes an annular guide member.

As an improvement of the proposal, the upper end of the annular guide piece is provided with an outer edge guide inclined plane, a side seal guide inclined plane is arranged at the position corresponding to the side seal of the medicine bag, and a side seal opening is arranged below the side seal guide inclined plane.

As the improvement of above-mentioned scheme, the second is moulded the membrane spare and is still including being equipped with the membrane base is moulded to side seal open-ended second, the second is moulded and is equipped with the opening fixed block on the membrane base, the second is moulded and is equipped with the fixed pin on the membrane base, be equipped with the locating hole on the opening fixed block, the opening fixed orifices will be located through its locating hole the fixed pin of side seal opening both sides is fixed, thereby guarantees the side seal opening has the predetermined clearance.

As an improvement of the scheme, the horizontal section of the plastic film core is rectangular.

As an improvement of the scheme, the side sealing device further comprises a third plastic film piece, the third plastic film piece is arranged between the second plastic film piece and the side sealing mechanism, and the third plastic film piece comprises a side edge first molding plate and a side edge second molding plate which are arranged in a left-right staggered mode.

As an improvement of the scheme, the side sealing mechanism comprises a side sealing block, and the side sealing block is connected with a side sealing driving mechanism which is transversely arranged.

As an improvement of the scheme, the bottom sealing mechanism comprises bottom sealing blocks which are symmetrically arranged, the shearing mechanism comprises scissors, and the bottom sealing blocks and the scissors are both connected with the symmetric driving mechanism.

As an improvement of the above scheme, the symmetrical driving mechanism comprises a guide rail, a slide block, a fisheye bearing, a connecting piece, a crank and a first motor; the guide rail is fixed on the frame, and the sliding block is arranged on the guide rail and can freely slide along the guide rail; the connecting piece is hinged on the rack and is hinged with the sliding block through the fisheye bearing; the connecting piece is further provided with a slotted hole, the first motor is connected with the crank, and one end of the crank extends into the slotted hole.

As an improvement of the scheme, the film driving mechanism comprises driving wheels symmetrically arranged on two sides of the plastic film core, a synchronous gear connected with the driving wheels and a second motor used for driving the synchronous gear.

As an improvement of the scheme, a dispensing disc and a fixing frame are further arranged below the shearing mechanism, the fixing frame is arranged in the dispensing disc, in the bag making process, the fixing frame is located under the plastic film core, the medicine bag extends into the fixing frame under the driving of the film driving mechanism, the shearing mechanism separates the medicine bag from a bag making film above the medicine bag after the medicine bag extends into the fixing frame by a preset depth, and an opening at the upper part of the medicine bag is opened.

The embodiment of the invention has the following beneficial effects:

the bag making film is shaped through the film molding core, the first film molding part and the second film molding part, the side edge and the bottom edge of the medicine bag are sealed through the side sealing mechanism and the bottom sealing mechanism, and finally the upper part of the medicine bag which is sealed through the side sealing mechanism and the bottom sealing mechanism is cut through the cutting mechanism so as to carry out subsequent medicine dispensing work. According to the invention, bag making can be stably and continuously carried out through the plastic film core, the first plastic film piece and the second plastic film piece, the opening is opened after the medicine bag is made, and a cavity is formed inside the medicine bag.

The horizontal cross section of the plastic film core is preferably rectangular. The bag making film can form four edges with certain radian after passing through the plastic film core with the horizontal section being rectangular, so that the opening at the upper part of the made medicine bag is kept open after the bag making film is cut off, a cavity is formed inside, the opening lasts for a long time, and the bag making film is not easy to deform and is more favorable for blanking.

When the opening fixed block breaks away from with the fixed pin, the annular guide of second plastic film spare can outwards open, increase annular guide and mould the clearance between the membrane core, pass the clearance between second plastic film spare and the plastic film core again when being convenient for system bag membrane is changed or is maintained. The opening fixed block directly passes the fixed pin through the locating hole and fixes, and during the dismantlement, only need with the opening fixed block upwards pull out can, the operation is convenient.

Utilize above-mentioned structure, this application is at the system bag in-process, seal the completion back in the side and the bottom of medicine bag, utilize the whole transmission power of membrane actuating mechanism to system bag membrane, stretch into the medicine bag in the mount, just cut off the separation with the system bag membrane on medicine bag and upper portion at last, cut off the back medicine bag and keep the opening open under the effect of four edges of self and mount inner wall, guarantee that follow-up dispensing can enter into the medicine bag completely, and need not any extra means and structure of strutting the medicine bag.

Drawings

FIGS. 1 and 2 are schematic structural views of a bag-making device of a quantitative dispensing apparatus for Chinese medicine granules from different perspectives according to a first embodiment of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 1;

FIG. 4 is an enlarged view of portion A of FIG. 2;

FIG. 5 is an enlarged view of portion B of FIG. 2;

FIGS. 6-8 are different views of the side seal, bottom seal and shear mechanism of the present invention;

FIG. 9 is a schematic structural diagram of a bag making apparatus of a quantitative dispensing apparatus for Chinese medicine granules according to a second embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings. It is only noted that the invention is intended to be limited to the specific forms set forth herein, including any reference to the drawings, as well as any other specific forms of embodiments of the invention.

With reference to fig. 1 and fig. 2, an embodiment of the present invention provides a bag making device of a quantitative blending apparatus for traditional Chinese medicine particles, including a film storage mechanism 1, a first plastic film part 2, a plastic film core 3, a second plastic film part 4, a side sealing mechanism 5, a film driving mechanism 6, a bottom sealing mechanism 7, and a cutting mechanism 8; the film storage mechanism 1 is used for storing bag making films 10;

with reference to fig. 3, the first plastic film piece 2 includes a guide surface 21, an edge guide groove 22 and a limiting strip 23, the edge guide groove 22 is disposed on the two side edges of the guide surface 21, the limiting strip 23 is disposed above the guide surface 21, and the lower end of the guide surface 21 is connected to the plastic film core 3;

referring to fig. 4, the second plastic film member 4 is located below the first plastic film member 2 and sleeved on the periphery of the plastic film core 3, and includes an annular guide 41;

the side sealing mechanism 5 is arranged below the second plastic film piece 4, faces the position to be sealed on the side edge of the bag making film 10 and is used for sealing the side edge of the bag making film 10;

the bottom sealing mechanism 7 is arranged below the side sealing mechanism 5 and is used for sealing the bottom edge of the bag making film 10;

the cutting mechanism 8 is arranged below the bottom sealing mechanism 7 and is used for cutting the medicine bag with a preset length;

with reference to fig. 5, the film driving mechanism 6 is symmetrically disposed on the driving wheels 61 and the connection on both sides of the plastic film core 3, the synchronizing gear 62 of the driving wheels and the second motor 63 of the synchronizing gear are used for driving the bag making film 10 to sequentially pass through the first plastic film piece 2, the second plastic film piece 4, the side sealing mechanism 5, the bottom sealing mechanism 7 and the shearing mechanism 8.

The invention carries out shaping on a bag making film 10 through a plastic film core 3, a first plastic film part 2 and a second plastic film part 4, carries out sealing on the side edge and the bottom edge of a medicine bag through a side sealing mechanism 5 and a bottom sealing mechanism 7, and finally cuts off the upper part of the medicine bag which is sealed at the side edge and the bottom edge through a cutting mechanism 8 so as to carry out subsequent medicine dispensing work. Preferably, the horizontal cross section of the plastic film core 3 is polygonal, so that the bag-making film forms a certain number of edges. More preferably, the horizontal section of the plastic film core 3 is rectangular or trapezoidal. The bag making film 10 can form four edges with certain radian after passing through the plastic film core 3 with the rectangular or trapezoidal horizontal section, so that the opening at the upper part of the made medicine bag is kept open after the bag making film 10 is cut off, a cavity is formed inside the bag making film, the opening lasts for a long time, and the bag making film is not easy to deform and is more favorable for blanking. In the subsequent dispensing work, the traditional Chinese medicine particles can directly fall into the opened medicine bag from the medicine bottle without an additional guide piece, so that the medicine pollution caused by the contact of different types of traditional Chinese medicine particles and the guide piece in the dispensing process is avoided.

As shown in fig. 4, in order to guide the bag making film 10 from the initial flat shape to wrap the plastic film core 3 smoothly and the two side edges overlap each other, a side seal portion is formed. The upper end of the ring-shaped guide 41 is provided with an outer edge guide slope 411, a side seal guide slope 412 is arranged at the position corresponding to the side seal of the medicine bag, and a side seal opening 42 is arranged below the side seal guide slope 412. The outer edge guiding inclined plane 411 can collect the bag making film 10 and wrap the bag making film on the periphery of the plastic film core 3, and the side sealing guiding inclined plane 412 gradually collects the side sealing part of the bag making film 10, so that the overlapped part enters the side sealing opening 42 to form a part to be side sealed.

Preferably, the second is moulded membrane spare 4 and is still including being equipped with the membrane base 43 is moulded to the second of side seal opening 42, be equipped with opening fixed block 44 on the membrane base 43 is moulded to the second, it is equipped with fixed pin 45 on the membrane base 43 to mould to the second, be equipped with locating hole 46 on the opening fixed block 44, opening fixed block 44 will be located through its locating hole 46 the fixed pin 45 of side seal opening 42 both sides is fixed, thereby guarantees the side seal opening 42 has the predetermined clearance. When the opening fixed block 44 is separated from the fixed pin 45, the annular guide 41 of the second plastic film part 4 is opened outwards, the gap between the annular guide 41 and the plastic film core 3 is increased, and the bag making film 10 can pass through the gap between the second plastic film part 4 and the plastic film core 3 again when being replaced or maintained. The opening fixing block 44 directly passes through the fixing pin 45 through the positioning hole 46 for fixing, and when the opening fixing block 44 is detached, the opening fixing block 44 only needs to be pulled out upwards, so that the operation is convenient.

As shown in fig. 5, in order to make the forming of the bag making film 10 more stable, a third plastic film member 9 may be further disposed between the second plastic film member 4 and the side sealing mechanism 5, and the third plastic film member 9 includes a side edge first forming plate 91 and a side edge second forming plate 92 disposed in a left-right staggered manner. The bag making film 10 shaped by the second plastic film piece 4 enters the third plastic film piece 9, so that the bag making film 10 is abutted against the four corners of the plastic film core 3, and the finally formed four edges are strengthened; the side seal portion formed by the second plastic film member 4 enters between the side first forming plate 91 and the side second forming plate 92 so that the side seal portion is in the same direction as the surface on which it is located.

Preferably, as shown in fig. 6, the side sealing mechanism 5 includes a side sealing block 51, and the side sealing block 51 is connected with a side sealing driving mechanism 52 arranged transversely. A heating wire is arranged in the side sealing block 51, and the sealing surface of the side sealing block 51 can be heated; the side sealing driving mechanism 52 may be a linear motor, an air cylinder, a rail slider mechanism driven by a motor, or the like, which is horizontally disposed, or may be a connecting member connected to the bottom sealing mechanism as shown in this embodiment, and the side sealing block 51 is connected to the symmetrical driving mechanism of the bottom sealing mechanism 7 to move synchronously with the bottom sealing block 71, thereby reducing driving components. The side second forming plate 92 located inside also extends downwards to the side sealing mechanism 5, when the side sealing block 51 seals the side sealing part by heat, the side second forming plate 92 is located between the side sealing part and the medicine bag body, the heated side sealing block 51 compresses the sealing part tightly on the side second forming plate 92, completing the sealing of the side of the medicine bag.

Referring to FIG. 6, a side view of the side seal, bottom seal and shear mechanism of the present invention; FIG. 7 is an isometric view of the side seal, bottom seal and shear mechanism of the present invention; and FIG. 8 is a bottom view of the side seal, bottom seal and shear mechanisms of the present invention. After the bag making film 10 passes through the side sealing mechanism 5, it is necessary to enter the bottom sealing mechanism 7 to complete the bottom sealing process of the medicine bag. The bottom sealing mechanism 7 comprises bottom sealing blocks 71 which are symmetrically arranged, the shearing mechanism 8 comprises scissors 81, and the bottom sealing blocks 71 and the scissors 81 are both connected with a symmetrical driving mechanism. The symmetrical driving mechanism comprises a guide rail 72, a slide block 73, a fisheye bearing 74, a connecting piece 75, a crank 76 and a first motor 77; the guide rail 72 is fixed on the frame 78, and the sliding block 73 is arranged on the guide rail 72 and can freely slide along the guide rail 72; the connecting piece 75 is hinged on the frame 78 and is hinged with the sliding block 73 through the fisheye bearing 74; the connecting member 75 is further provided with a slot 751, the first motor 77 is connected with the crank 76, and one end of the crank 76 extends into the slot 751. Through the symmetrical driving mechanism, the bottom sealing block 71 and the scissors 81 can be driven simultaneously, the integral structure of the machine is simplified, and the operation reliability is improved. In addition, the symmetrical driving mechanism has a compact structure, can drive the two arms of the bottom sealing block 71 and the scissors 81 to synchronously move oppositely, simplifies the process, and simultaneously ensures the sealing and cutting quality.

Referring to fig. 9, according to the second embodiment of the present invention, the difference from the first embodiment is that a dispensing tray 11 and a fixing frame 12 are further disposed below the cutting mechanism 8, the fixing frame 12 is disposed in the dispensing tray 11, during bag making, a fixing frame 12 is located right below the plastic film core 3, the medicine bag is driven by the film driving mechanism 6 to extend into the fixing frame 12, after the medicine bag extends into the fixing frame 12 by a predetermined depth, the cutting mechanism 8 separates the medicine bag from the bag making film 10 above, and an opening at the upper portion of the medicine bag is open. The fixing frame 12 and the batching tray 11 are used for transferring the medicine bags to the dispensing station, and the fixing frame 12 needs to have functions of medicine bag position location and shape location, so the medicine bags need to be abutted against the inner wall of the fixing frame 12, and the medicine bags are lighter in weight, so that the friction force between the medicine bags and the fixing frame 12 cannot be overcome by the self gravity of the medicine bags, and the medicine bags automatically enter the preset positions of the fixing frame 12. Utilize above-mentioned structure, this application is at the system bag in-process, after the side and the bottom of medicine bag are sealed and are accomplished, utilize membrane actuating mechanism 6 to the whole transmission power of system bag membrane 10, stretch into the medicine bag in mount 12, just cut off the separation with system bag membrane 10 on medicine bag and upper portion at last, the medicine bag keeps the opening to open under the effect of self four edges and mount 12 inner walls after cutting off, guarantee that follow-up dispensing can enter into the medicine bag completely, and need not any extra means and structure of propping open the medicine bag.

The working principle of the present application is explained in detail below:

the rolled bag making film 10 is stored in the film storage mechanism 1 and can be rotationally discharged under the traction of the bag making film 10. The bag making film 10 enters the first plastic film piece 2 under the guiding action of the guide roller, two edges of the bag making film 10 enter the guide surface 21, and move tightly close to the guide surface 21 under the limiting action of the limiting strip 23, and the bag making film changes from a flat sheet shape into an annular shape and wraps the strip-shaped plastic film core 3.

Then, the bag making film 10 enters the second plastic film member 4, and further clings to the plastic film core 3 under the gathering action of the outer edge guide inclined surface 411 of the annular guide 41, and the bag making film 10 starts to form four edges by molding the outline of the plastic film core 3. The two side edges of the bagging film 10 start to overlap under the guiding action of the side seal guide slopes 412 to form side seal portions, and the side seal portions are conveyed downward through the side seal openings 42.

After leaving the second plastic film piece 4, the bag making film 10 enters a third plastic film piece 9, and the third plastic film piece 9 is also arranged around the plastic film core 3, so that the bag making film 10 can be abutted against four corners of the plastic film core 3, and four finally formed edges are strengthened; in addition, the side seal part enters between the side first forming plate 91 and the side second forming plate 92 which are arranged in a left-right staggered manner, so that the side seal part is changed from being vertical to the surface where the side seal part is positioned to be in the same direction with the surface where the side seal part is positioned;

after the third plastic film member 9 is formed again, the bag making film 10 enters the side sealing mechanism 5 where the side sealing block 51 extends toward the side sealing portion of the bag making film 10 to cooperate with the side second forming plate 92 to seal the side sealing portion.

After the bag making film 10 passes through the side sealing mechanism 5, it is necessary to enter the bottom sealing mechanism 7 to complete the bottom sealing process of the medicine bag. Here, the first motor 77 of the symmetrical driving mechanism drives the crank 76 to rotate, and then drives the connecting member 75 to rotate around its hinge shaft, so as to drive the fisheye bearing 74 to move, and the sliding block 73 on the guide rail 72 is driven to move synchronously through the fisheye bearing 74. The bottom sealing block 71 provided on the slider 73 seals the bottom of the bag-making film 10.

Taking the second embodiment as an example, the bag making film 10 completing the bottom sealing process moves downwards continuously under the driving of the film driving mechanism 6, and enters the fixed frame 12 right below the fixed frame 12, the fixed frame 12 has a specially designed oval positioning portion, the oval positioning portion contacts with four edges of the medicine bag, the medicine bag keeps opening trend in the process that the bag making film 10 enters the fixed frame 12, after the bag making film 10 descends to a predetermined position, the sliding blocks 73 of the symmetrical driving mechanism approach each other again, the scissors 81 cut the medicine bag and the bag making film 10 on the upper portion, meanwhile, the bag making film 10 on the upper portion completes the bottom sealing process, waits for the batching tray 11 to rotate by a predetermined angle, aligns the other fixed frame 12 with the bottom sealing mechanism, and continues the making of the medicine bag.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.