A bag making device for quantitative preparation of Chinese medicine granules

Abstract

The embodiment of the present invention discloses a bag-making device for quantitative preparation equipment of traditional Chinese medicine granules, comprising a film storage mechanism, a first plastic film member, a plastic film core, a second plastic film member, a side sealing mechanism, a film driving mechanism, a bottom sealing mechanism and a shearing mechanism; the film storage mechanism is used to store the bag-making film; the side sealing mechanism is used to seal the side of the bag-making film; the bottom sealing mechanism is used to seal the bottom of the bag-making film; the shearing mechanism is used to shear off medicine bags of a predetermined length. By adopting the present invention, the upper opening of the prepared medicine bag remains open after the bag-making film is sheared off, and in the subsequent dispensing work, the traditional Chinese medicine granules can fall directly from the medicine bottle into the opened medicine bag without the need for an additional traditional Chinese medicine granule guide, thereby avoiding the contact of different types of traditional Chinese medicine granules with the guide during the dispensing process to cause drug contamination.

Description

Technical Field

[0001] The invention relates to a quantitative preparation device for Chinese medicine granules, in particular to a bag making device for the quantitative preparation device for Chinese medicine granules. Background Art

[0002] my country has a long history of traditional Chinese medicine culture and rich resources. However, China currently accounts for only a small part of the world's traditional Chinese medicine exports. The main reason is that my country still uses the traditional method of dispensing raw herbs and hand-grabbing and weighing. The speed of dispensing traditional Chinese medicine is slow, the measurement error is large, and it is difficult to keep pace with the international market where the dispensing is standardized, standardized and scientific.

[0003] With the development of science and technology, some hospitals have begun to use mechanical automatic medicine dispensing. In order to meet the needs of mechanized medicine dispensing, the existing medicine dispensing machines use medicine boxes with fixed shapes. After the Chinese medicine is put into the medicine box, the surface of the medicine box is sealed with a plastic film. However, the medicine box takes up a lot of space, is expensive, and is inconvenient to carry. If the bag packaging method can be used, it can save costs and be easy to carry.

[0004] There are two main existing bag packaging methods. One is to use batch-made packaging bags and open them by vacuum suction cups before dispensing. However, this method involves a complex mechanical structure and the opening effect is uncontrollable, which can easily lead to leakage of medicine due to incomplete opening. On the other hand, the vacuum suction cup is noisy and affects the work of doctors, which does not meet the requirements of hospital pharmacies. Another opening method is to use a funnel-like structure to open the bag mouth, but the mechanism used to open the bag mouth will cause pollution to the medicine bag, which is not suitable for the field of pharmacy dispensing where the formula is constantly changing.

[0005] The second method is to use packaging film to directly wrap the surface of the product and then seal it into a bag. This method is only used for packaging scenarios where the shape and size of the product to be packaged are relatively fixed. However, the packaging of Chinese medicine granules is affected by medical advice, and the situations of different people vary greatly, so this packaging method is not suitable for use.

[0006] In summary, it is urgent to propose a bag making equipment to manufacture packaging bags that meet the requirements. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a bag making device for quantitative preparation equipment of traditional Chinese medicine granules, which can stably make bags. After the medicine bags are made, the openings are opened and a cavity is formed inside, which is convenient for subsequent automatic dispensing.

[0008] The technical problem to be solved by the present invention is also to provide a bag-making device for quantitative preparation of traditional Chinese medicine granules, which can load the medicine bag into a fixed frame and then cut it off from the upper bag-making film. After the bag making is completed, the medicine can be dispensed immediately, which simplifies the process, saves the dispensing time and improves the dispensing efficiency.

[0009] In order to solve the above technical problems, the present invention provides a bag-making device for a quantitative preparation device of traditional Chinese medicine granules, comprising a film storage mechanism, a first plastic film member, a plastic film core, a second plastic film member, a side sealing mechanism, a film driving mechanism, a bottom sealing mechanism and a shearing mechanism; the film storage mechanism is used to store the bag-making film;

[0010] The end of the first plastic film member is connected to the plastic film core and is used to gradually bend the bag-making film from both sides and cover the plastic film core;

[0011] The second plastic film component is located below the first plastic film component and is sleeved around the outer periphery of the plastic film core, and is used for performing secondary shaping on the bag-making film;

[0012] The side sealing mechanism is arranged below the second plastic film member and is used to seal the side edge of the bag-making film;

[0013] The bottom sealing mechanism is arranged below the plastic film core and is used to seal the bottom edge of the bag-making film;

[0014] The shearing mechanism is arranged below the bottom sealing mechanism and is used to shear off the medicine bag of a predetermined length;

[0015] The film driving mechanism drives the bag-making film to pass through the first plastic film component, the second plastic film component, the side sealing mechanism, the bottom sealing mechanism and the shearing mechanism in sequence.

[0016] As an improvement of the above solution, the first plastic film member includes a guide surface for guiding the bag-making film to be formed.

[0017] As an improvement of the above solution, the first plastic film component further includes edge guide grooves and limit strips, the edge guide grooves are arranged on both side edges of the guide surface, and the limit strips are arranged above the guide surface.

[0018] As an improvement of the above solution, the second plastic film member includes an annular guide member.

[0019] As an improvement of the above solution, an outer guiding slope is provided at the upper end of the annular guide member, a side seal guiding slope is provided at the position corresponding to the side seal of the medicine bag, and a side seal opening is provided below the side seal guiding slope.

[0020] As an improvement of the above scheme, the second plastic film part also includes a second plastic film base provided with the side seal opening, the second plastic film base is provided with an opening fixing block, the second plastic film base is provided with a fixing pin, the opening fixing block is provided with a positioning hole, and the opening fixing hole fixes the fixing pins located on both sides of the side seal opening through its positioning hole, thereby ensuring that the side seal opening has a predetermined gap.

[0021] As an improvement of the above solution, the horizontal cross-section of the plastic film core is rectangular.

[0022] As an improvement of the above solution, it also includes a third plastic film component, which is arranged between the second plastic film component and the side sealing mechanism, and includes a first side molding plate and a second side molding plate that are staggered on the left and right.

[0023] As an improvement of the above solution, the side sealing mechanism includes a side sealing block, and the side sealing block is connected to a side sealing driving mechanism arranged laterally.

[0024] As an improvement of the above solution, the bottom sealing mechanism includes symmetrically arranged bottom sealing blocks, the shearing mechanism includes scissors, and the bottom sealing blocks and the scissors are both connected to the symmetrical driving mechanism.

[0025] As an improvement of the above scheme, the symmetrical driving mechanism includes a guide rail, a slider, a fisheye bearing, a connecting piece, a crank and a first motor; the guide rail is fixed on the frame, the slider is arranged on the guide rail and can slide freely along the guide rail; the connecting piece is hinged on the frame and is hinged to the slider through the fisheye bearing; a slot is also provided on the connecting piece, the first motor is connected to the crank, and one end of the crank extends into the slot.

[0026] As an improvement of the above solution, the film driving mechanism includes driving wheels symmetrically arranged on both sides of the plastic film core, synchronous gears connected to the driving wheels, and a second motor for driving the synchronous gears.

[0027] As an improvement of the above scheme, a batching tray and a fixed frame are further provided below the shearing mechanism. The fixed frame is arranged in the batching tray. During the bag making process, a fixed frame is located directly below the plastic film core. The medicine bag is driven by the film driving mechanism to extend into the fixed frame. After the medicine bag extends into the fixed frame to a predetermined depth, the shearing mechanism separates the medicine bag from the bag making film above, and the upper opening of the medicine bag is opened.

[0028] The implementation of the embodiments of the present invention has the following beneficial effects:

[0029] The present invention shapes the bag-making film through the plastic film core, the first plastic film piece and the second plastic film piece, seals the side and bottom edges of the medicine bag through the side sealing mechanism and the bottom sealing mechanism, and finally cuts off the upper part of the medicine bag with the side and bottom sealed through the shearing mechanism, so as to carry out the subsequent medicine dispensing work. The present invention can stably and continuously make bags through the plastic film core, the first plastic film piece and the second plastic film piece. After the medicine bag is made, the opening is opened to form a cavity inside. In the subsequent medicine dispensing work, the Chinese medicine particles can fall directly from the medicine bottle into the opened medicine bag without the need for an additional guide piece, thereby avoiding the contact of different types of Chinese medicine particles with the guide piece during the medicine dispensing process to cause medicine contamination.

[0030] The horizontal cross section of the plastic film core is preferably rectangular. After the bag-making film passes through the plastic film core with a rectangular horizontal cross section, four edges with a certain curvature will be formed, ensuring that the upper opening of the finished medicine bag remains open after the bag-making film is cut off, forming a cavity inside, and the opening is open for a long time, is not easy to deform, and is more conducive to material feeding.

[0031] When the opening fixing block is separated from the fixing pin, the annular guide of the second plastic film member will open outward, increasing the gap between the annular guide and the plastic film core, making it easier for the bag-making film to pass through the gap between the second plastic film member and the plastic film core again when replacing or maintaining the bag-making film. The opening fixing block is fixed by directly passing through the fixing pin through the positioning hole. When disassembling, it is only necessary to pull the opening fixing block upward, which is convenient to operate.

[0032] Utilizing the above structure, during the bag making process, after the side and bottom sealing of the medicine bag is completed, the present application utilizes the membrane driving mechanism to transmit the overall force of the bag making film to extend the medicine bag into the fixed frame, and finally the medicine bag is cut and separated from the upper bag making film. After cutting, the medicine bag remains open under the action of its own four edges and the inner wall of the fixed frame, ensuring that subsequent medication can completely enter the medicine bag without the need for any additional means or structures to open the medicine bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 and 2 It is a schematic structural diagram of a first embodiment of a bag-making device of a quantitative preparation device of traditional Chinese medicine granules of the present invention from different perspectives;

[0034] Figure 3 yes Figure 1 A magnified view of part A;

[0035] Figure 4 yes Figure 2 A magnified view of part A;

[0036] Figure 5 yes Figure 2 A magnified view of part B;

[0037] Figure 6-Figure 8 Schematic diagrams of the structure of the side sealing mechanism, the bottom sealing mechanism and the shearing mechanism of the present invention from different perspectives;

[0038] Fig. 9 It is a structural schematic diagram of a second embodiment of a bag-making device of a quantitative preparation device for traditional Chinese medicine granules of the present invention. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that the directional terms such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and are not specific limitations of the present invention.

[0040] Combination Figure 1 and Figure 2 The embodiment of the present invention provides a bag-making device of a quantitative preparation device for Chinese medicine granules, comprising a film storage mechanism 1, a first plastic film member 2, a plastic film core 3, a second plastic film member 4, a side sealing mechanism 5, a film driving mechanism 6, a bottom sealing mechanism 7 and a shearing mechanism 8; the film storage mechanism 1 is used to store a bag-making film 10;

[0041] Combination Figure 3 The first plastic film part 2 includes a guide surface 21, an edge guide groove 22 and a limit strip 23, wherein the edge guide groove 22 is arranged at both side edges of the guide surface 21, the limit strip 23 is arranged above the guide surface 21, and the lower end of the guide surface 21 is connected to the plastic film core 3;

[0042] Combination Figure 4 The second plastic film member 4 is located below the first plastic film member 2 and is sleeved on the periphery of the plastic film core 3, and includes an annular guide member 41;

[0043] The side sealing mechanism 5 is disposed below the second plastic film member 4, facing the side edge of the bag-making film 10 to be sealed, and is used to seal the side edge of the bag-making film 10;

[0044] The bottom sealing mechanism 7 is disposed below the side sealing mechanism 5 and is used to seal the bottom edge of the bag-making film 10;

[0045] The shearing mechanism 8 is arranged below the bottom sealing mechanism 7 and is used to shear off the medicine bag of a predetermined length;

[0046] Combination Figure 5 The film driving mechanism 6 includes driving wheels 61 symmetrically arranged on both sides of the plastic film core 3, a synchronous gear 62 connected to the driving wheels and a second motor 63 for driving the synchronous gear, which is used to drive the bag-making film 10 to pass through the first plastic film part 2, the second plastic film part 4, the side sealing mechanism 5, the bottom sealing mechanism 7 and the shearing mechanism 8 in sequence.

[0047] The present invention shapes the bag-making film 10 through the plastic film core 3, the first plastic film part 2 and the second plastic film part 4, seals the side and bottom edges of the medicine bag through the side sealing mechanism 5 and the bottom sealing mechanism 7, and finally cuts off the upper part of the medicine bag with the side and bottom seals through the shearing mechanism 8, so as to carry out the subsequent 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 cross-section of the plastic film core 3 is rectangular or trapezoidal. After the bag-making film 10 passes through the plastic film core 3 with a rectangular or trapezoidal horizontal cross-section, four edges with a certain curvature will be formed, ensuring that the upper opening of the prepared medicine bag and the bag-making film 10 remains open after being cut off, and a cavity is formed inside, and the duration of the opening is long, not easy to deform, and more conducive to feeding. In the subsequent dispensing work, the Chinese medicine particles can fall directly from the medicine bottle into the opened medicine bag, without the need for additional guides, avoiding the contact of different types of Chinese medicine particles with the guides during the dispensing process to cause drug contamination.

[0048] like Figure 4 As shown, in order to guide the bag-making film 10 to smoothly wrap the plastic film core 3 from the initial plane shape and overlap the edges on both sides to form a side-sealed part, the upper end of the annular guide member 41 is provided with an outer guide slope 411, and a side-sealing guide slope 412 is provided at the position corresponding to the side seal of the medicine bag, and a side-sealing opening 42 is provided below the side-sealing guide slope 412. The outer guide slope 411 can gather the bag-making film 10 and wrap it around the periphery of the plastic film core 3, and the side-sealing guide slope 412 gradually gathers the side-sealed part of the bag-making film 10 so that the overlapping part enters the side-sealing opening 42 to form a part to be side-sealed.

[0049] Preferably, the second plastic film member 4 further comprises a second plastic film base 43 provided with the side seal opening 42, an opening fixing block 44 is provided on the second plastic film base 43, a fixing pin 45 is provided on the second plastic film base 43, and a positioning hole 46 is provided on the opening fixing block 44. The opening fixing block 44 fixes the fixing pins 45 located on both sides of the side seal opening 42 through its positioning hole 46, thereby ensuring that the side seal opening 42 has a predetermined gap. When the opening fixing block 44 is separated from the fixing pin 45, the annular guide member 41 of the second plastic film member 4 will open outwards, increasing the gap between the annular guide member 41 and the plastic film core 3, so as to facilitate the bag-making film 10 to pass through the gap between the second plastic film member 4 and the plastic film core 3 again when replacing or maintaining. The opening fixing block 44 is directly fixed through the fixing pin 45 through the positioning hole 46. When disassembling, the opening fixing block 44 only needs to be pulled out upwards, which is convenient to operate.

[0050] like Figure 5As shown, in order to make the forming of the bag-making film 10 more stable, a third plastic film part 9 can be arranged between the second plastic film part 4 and the side sealing mechanism 5, and the third plastic film part 9 includes a first side forming plate 91 and a second side forming plate 92 which are staggered on the left and right. The bag-making film 10 formed by the second plastic film part 4 then enters the third plastic film part 9, so that the bag-making film 10 abuts against the four corners of the plastic film core 3, and strengthens the four edges formed in the end; the side sealing part formed by the second plastic film part 4 enters between the first side forming plate 91 and the second side forming plate 92, so that the side sealing part is in the same direction as the surface where it is located.

[0051] Preferably, if Figure 6 As shown, the side sealing mechanism 5 includes a side sealing block 51, and the side sealing block 51 is connected to a side sealing driving mechanism 52 arranged horizontally. A heating wire is arranged inside the side sealing block 51, which can heat the sealing surface of the side sealing block 51; the side sealing driving mechanism 52 can be a linear motor, a cylinder or a guide rail slider mechanism driven by a motor arranged horizontally, or a connecting piece connected to the bottom sealing mechanism as shown in this embodiment. By connecting the side sealing block 51 with the symmetrical driving mechanism of the bottom sealing mechanism 7, it moves synchronously with the bottom sealing block 71, thereby reducing the number of driving components. The second side forming plate 92 located on the inner side also extends downward to the side sealing mechanism 5. When the side sealing block 51 seals the side sealing part by heat, the second side forming plate 92 is located between the side sealing part and the medicine bag body. The heated side sealing block 51 presses the sealing part against the second side forming plate 92 to complete the sealing of the side of the medicine bag.

[0052] Combination Figure 6 A side view of the side sealing mechanism, the bottom sealing mechanism and the shearing mechanism of the present invention; Figure 7 An axonometric view of the side sealing mechanism, the bottom sealing mechanism and the shearing mechanism of the present invention; and Figure 8Bottom view of the side sealing mechanism, bottom sealing mechanism and shearing mechanism of the present invention. After the bag-making film 10 passes through the side sealing mechanism 5, it needs to enter the bottom sealing mechanism 7 to complete the bottom sealing process of the medicine bag. The bottom sealing mechanism 7 includes a symmetrically arranged bottom sealing block 71, and the shearing mechanism 8 includes a pair of scissors 81. The bottom sealing block 71 and the scissors 81 are both connected to a symmetrical driving mechanism. The symmetrical driving mechanism includes a guide rail 72, a slider 73, a fisheye bearing 74, a connecting piece 75, a crank 76 and a first motor 77; the guide rail 72 is fixed on a frame 78, and the slider 73 is arranged on the guide rail 72 and can slide freely along the guide rail 72; the connecting piece 75 is hinged on the frame 78 and is hinged to the slider 73 through the fisheye bearing 74; the connecting piece 75 is also provided with a slot 751, and the first motor 77 is connected to the crank 76, and one end of the crank 76 extends into the slot 751. The symmetrical driving mechanism can simultaneously drive the bottom sealing block 71 and the scissors 81, simplifying the overall structure of the machine and improving operational reliability. In addition, the symmetrical driving mechanism has a compact structure and can drive the two arms of the bottom sealing block 71 and the scissors 81 to move synchronously toward each other, simplifying the process while ensuring the quality of sealing and shearing.

[0053] Combination Fig. 9 As shown, according to the second embodiment of the present invention, the difference from the first embodiment is that a dispensing plate 11 and a fixing frame 12 are further provided below the shearing mechanism 8, and the fixing frame 12 is provided in the dispensing plate 11. During the bag making process, a fixing frame 12 is located directly below the plastic film core 3, and the medicine bag is extended into the fixing frame 12 under the drive of the film driving mechanism 6. After the medicine bag extends into the fixing frame 12 to a predetermined depth, the shearing mechanism 8 separates the medicine bag from the bag-making film 10 above, and the upper opening of the medicine bag is opened. The fixing frame 12 and the dispensing plate 11 are used to transfer the medicine bag to the dispensing station. Since the fixing frame 12 needs to have the function of positioning the position and shape of the medicine bag, the medicine bag needs to abut against the inner wall of the fixing frame 12. Since the weight of the medicine bag is relatively light, the weight of the medicine bag alone cannot overcome the friction between the medicine bag and the fixing frame 12 and automatically enter the predetermined position of the fixing frame 12. By utilizing the above structure, during the bag making process of the present application, after the side and bottom of the medicine bag are sealed, the membrane driving mechanism 6 is used to transmit the overall force of the bag making film 10 to extend the medicine bag into the fixing frame 12, and finally the medicine bag is cut and separated from the upper bag making film 10. After cutting, the medicine bag remains open under the action of its own four edges and the inner wall of the fixing frame 12, ensuring that the subsequent medication can completely enter the medicine bag without the need for any additional means or structure to open the medicine bag.

[0054] Here is a detailed description of how this application works:

[0055] The rolled bag-making film 10 is stored in the film storage mechanism 1, and can be rotated and discharged under the traction of the bag-making film 10. The bag-making film 10 enters the first plastic film member 2 under the guidance of the guide roller, and the two edges of the bag-making film 10 enter the guide surface 21, and move closely to the guide surface 21 under the limiting action of the limiting strip 23, changing from a flat sheet to a ring shape, and wrapped on the long plastic film core 3.

[0056] Next, the bag-making film 10 enters the second plastic film member 4, and the bag-making film 10 is further pressed against the plastic film core 3 under the gathering effect of the outer guide slope 411 of the annular guide member 41, and the bag-making film 10 begins to imitate the shape of the plastic film core 3 to form four edges. The two side edges of the bag-making film 10 begin to overlap under the guidance of the side sealing guide slope 412 to form a side sealing part, and the side sealing part is transported downward through the side sealing opening 42.

[0057] After leaving the second plastic film part 4, the bag-making film 10 enters the third plastic film part 9, which is also arranged around the plastic film core 3, so that the bag-making film 10 can abut against the four corners of the plastic film core 3, thereby strengthening the four edges finally formed; in addition, the side sealing part enters between the side first forming plate 91 and the side second forming plate 92 which are staggered on the left and right, so that the side sealing part changes from being perpendicular to the surface on which it is located to being in the same direction as the surface on which it is located;

[0058] After being molded again by the third plastic film piece 9, 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 and cooperates with the side second molding plate 92 to seal the side sealing portion.

[0059] After the bag-making film 10 passes through the side sealing mechanism 5, it needs 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 own hinge axis, driving the fisheye bearing 74 to move, and the slider 73 on the guide rail 72 is driven by the fisheye bearing 74 to move synchronously. The bottom sealing block 71 provided on the slider 73 seals the bottom of the bag-making film 10.

[0060] Taking the second embodiment as an example, the bag-making film 10 that has completed the bottom sealing process continues to move downward under the drive of the film driving mechanism 6 and enters the fixed frame 12 directly below it. The fixed frame 12 has a specially designed elliptical positioning portion, which contacts the four edges of the medicine bag. In the process of the bag-making film 10 entering the fixed frame 12, the medicine bag maintains a tendency to open. After the bag-making film 10 drops to a predetermined position, the sliders 73 of the symmetrical driving mechanism approach each other again, and the scissors 81 cut the medicine bag and the upper bag-making film 10. At the same time, the upper bag-making film 10 completes the bottom sealing process, waits for the ingredient plate 11 to rotate to a predetermined angle, aligns the other fixed frame 12 with the bottom sealing mechanism, and continues to make the medicine bag.

[0061] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A bag making device for a quantitative preparation device of Chinese medicine granules, characterized in that: It includes a film storage mechanism, a first plastic film component, a plastic film core, a second plastic film component, a side sealing mechanism, a film driving mechanism, a bottom sealing mechanism and a shearing mechanism; wherein the film storage mechanism is used to store bag-making film; The end of the first plastic film member is connected to the plastic film core and is used to gradually bend the bag-making film from both sides and cover the plastic film core; The second plastic film component is located below the first plastic film component and is sleeved around the outer periphery of the plastic film core, and is used for performing secondary shaping on the bag-making film; The side sealing mechanism is arranged below the second plastic film member and is used to seal the side edge of the bag-making film; The bottom sealing mechanism is arranged below the plastic film core and is used to seal the bottom edge of the bag-making film; The shearing mechanism is arranged below the bottom sealing mechanism and is used to shear off the medicine bag of a predetermined length; The film driving mechanism drives the bag-making film to pass through the first plastic film part, the second plastic film part, the side sealing mechanism, the bottom sealing mechanism and the shearing mechanism in sequence; The first plastic film member includes a guide surface for guiding the bag-making film to be formed; The first plastic film part further includes an edge guide groove and a limit strip, wherein the edge guide groove is arranged at both side edges of the guide surface, and the limit strip is arranged above the guide surface; The second plastic film member includes an annular guide member; The upper end of the annular guide member is provided with an outer 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 the side seal guide slope; The second plastic film part also includes a second plastic film base provided with the side seal opening, an opening fixing block is provided on the second plastic film base, a fixing pin is provided on the second plastic film base, and a positioning hole is provided on the opening fixing block. The opening fixing block fixes the fixing pins located on both sides of the side seal opening through its positioning holes, thereby ensuring that the side seal opening has a predetermined gap.

2. The bag making device of the quantitative preparation equipment of traditional Chinese medicine granules according to claim 1, characterized in that: The horizontal cross section of the plastic film core is rectangular or trapezoidal.

3. The bag making device of the quantitative preparation equipment of traditional Chinese medicine granules according to claim 1, characterized in that: It also includes a third plastic film component, which is arranged between the second plastic film component and the side sealing mechanism, and includes a first side molding plate and a second side molding plate that are staggered on the left and right.

4. The bag making device of the quantitative preparation equipment of traditional Chinese medicine granules according to claim 1, characterized in that: The side sealing mechanism comprises a side sealing block, and the side sealing block is connected to the side sealing driving mechanism.

5. The bag making device of the quantitative preparation equipment of traditional Chinese medicine granules according to claim 1, characterized in that: The bottom sealing mechanism comprises symmetrically arranged bottom sealing blocks, the shearing mechanism comprises scissors, and the bottom sealing blocks and the scissors are both connected to the symmetrical driving mechanism.

6. The bag-making device of the quantitative preparation equipment of traditional Chinese medicine granules according to claim 5, characterized in that: The symmetrical driving mechanism includes a guide rail, a slider, a fisheye bearing, a connecting piece, a crank and a first motor; the guide rail is fixed on the frame, the slider is arranged on the guide rail and can slide freely along the guide rail; the connecting piece is hinged on the frame and is hinged to the slider through the fisheye bearing; a slot is also provided on the connecting piece, the first motor is connected to the crank, and one end of the crank extends into the slot.

7. The bag making device of the quantitative preparation equipment of traditional Chinese medicine granules according to claim 1, characterized in that: The film driving mechanism comprises driving wheels symmetrically arranged on both sides of the plastic film core, synchronous gears connected to the driving wheels and a second motor for driving the synchronous gears.

8. The bag-making device of the quantitative preparation equipment of traditional Chinese medicine granules according to any one of claims 1 to 7, characterized in that: A batching disc and a fixing frame are also provided below the shearing mechanism. The fixing frame is arranged in the batching disc. During the bag making process, a fixing frame is located directly below the plastic film core. The medicine bag is driven by the film driving mechanism to extend into the fixing frame. After the medicine bag extends into the fixing frame to a predetermined depth, the shearing mechanism separates the medicine bag from the bag making film above, and the upper opening of the medicine bag is opened.

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