Forming die for non-PVC infusion bag

Abstract

The utility model relates to the field of infusion bag molds, and discloses a forming mold of a non-PVC infusion bag, which comprises a heat sealing mold arranged at a bag body heat sealing station and a slitting mold arranged at a bag body slitting station, the heat sealing mold is used for hot press forming of the non-PVC infusion bag, the slitting mold is used for cutting separation of the non-PVC infusion bag, and the heat sealing mold is used for hot press forming of the non-PVC infusion bag. The heat sealing die comprises an upper heat sealing die and a lower heat sealing die which are symmetrically arranged up and down, and the slitting die comprises an upper slitting die and a lower slitting die which are symmetrically arranged up and down. According to the utility model, the special dies are respectively adopted to carry out heat sealing and cutting on the non-PVC infusion bag, so that not only is the heat sealing effect improved, but also the heat sealing quality of the bag body is prevented from being influenced by the cutting process.

Description

Technical Field

[0001] The utility model relates to the technical field of infusion bag moulds, in particular to a forming mould for a non-PVC infusion bag. Background Art

[0002] Non-PVC infusion soft bags made of non-PVC multi-layer co-extruded films are becoming more and more widely used due to their safety, environmental protection and ease of use.

[0003] As attached Figure 1 The non-PVC infusion bag 3 shown in the figure first needs to heat-press the non-PVC multi-layer co-extruded film through a bag forming mold and then cut it into a bag body. Finally, the bag body is filled with a preset drug and then sealed and welded to make an infusion bag for storing the drug solution.

[0004] The existing molding molds still have many deficiencies in the mold structure design. For example, the multi-layer co-extruded film is directly cut after hot pressing, and the slitting tool will affect the gap control of the heat-sealing mold, causing the bag body to be easily deformed, that is, the cutting process will affect the heat-sealing quality of the bag body; the temperature control design is also insufficient, resulting in the problem of uneven heat sealing of the bag body during the production process of non-PVC soft bag infusion, so the existing molding mold needs to be improved. Utility Model Content

[0005] In view of the problems existing in the prior art: the existing forming mold directly cuts the multi-layer co-extruded film after it is hot-pressed, the bag body is easily deformed, and the cutting process affects the heat-sealing quality of the bag body. The purpose of the utility model is to provide a forming mold for a non-PVC infusion bag, which uses special molds to heat-seal and cut the non-PVC infusion bag, which not only improves the heat-sealing effect, but also avoids the cutting process affecting the heat-sealing quality of the bag body.

[0006] In order to achieve the above object, the technical solution of the utility model is:

[0007] A forming mold for a non-PVC infusion bag, comprising a heat-sealing mold arranged at a bag body heat-sealing station and a slitting mold arranged at a bag body slitting station, the heat-sealing mold is used for hot pressing forming of the non-PVC infusion bag, the slitting mold is used for cutting and separating the non-PVC infusion bag, the heat-sealing mold comprises a heat-sealing upper mold and a heat-sealing lower mold which are symmetrically arranged up and down, and the slitting mold comprises a slitting upper mold and a slitting lower mold which are symmetrically arranged up and down.

[0008] The utility model is further configured as follows: a heat-sealing upper base is provided on the side of the heat-sealing upper mold facing the heat-sealing lower mold, an upper heat-sealing surface for heating the edge structure of the non-PVC infusion bag is provided on the heat-sealing upper base, and an upper cooling plate for cooling the bag body structure of the non-PVC infusion bag is also provided on the heat-sealing upper base.

[0009] The utility model is further configured as follows: a heat-sealing lower base is arranged on the side of the heat-sealing lower mold facing the heat-sealing upper mold, a lower heat-sealing surface is arranged on the heat-sealing lower base, and a lower cooling plate for cooling the bag body structure of the non-PVC infusion bag is also arranged on the heat-sealing lower base.

[0010] The utility model is further configured as follows: a heat sealing limit column is arranged between the heat sealing upper mold and the heat sealing lower mold, and the heat sealing limit column is used to control the gap distance between the heat sealing upper mold and the heat sealing lower mold.

[0011] The utility model is further configured as follows: a first heat sealing upper limit column is provided at one end of the upper heat sealing base, and a second heat sealing upper limit column is provided at the other end of the upper heat sealing base, and a heat sealing lower limit column is provided on the lower heat sealing base, and the positions of the first heat sealing upper limit column and the heat sealing lower limit column correspond to each other; when the upper heat sealing mold and the lower heat sealing mold are closed, the first heat sealing upper limit column abuts against the lower heat sealing limit column, and at the same time, the second heat sealing upper limit column abuts against the lower heat sealing surface.

[0012] The utility model is further configured as follows: the heat-sealing mold also includes a segmented heating rod for heating the edge structure of the non-PVC infusion bag, each of the segmented heating rod includes a plurality of heating segments, and each of the heating segments generates heat independently.

[0013] The utility model is further configured as follows: the heat-sealing mold further comprises a thermocouple for measuring temperature, and the temperature of each heating section is measured by a thermocouple.

[0014] The utility model is further configured as follows: an upper slitting base is provided on the side of the upper slitting mold facing the lower slitting mold, an upper pressing surface capable of surrounding the edge structure of the non-PVC infusion bag is provided on the upper slitting base, a lower slitting base is provided on the side of the lower slitting mold facing the upper slitting mold, a side of the lower slitting base facing the upper slitting mold is a lower pressing surface, and a slitting knife for cutting and separating non-PVC infusion bags is fixed on the upper slitting base.

[0015] The utility model is further configured as follows: a slitting limit column is arranged between the slitting upper die and the slitting lower die, and the slitting limit column is used to control the gap distance between the slitting upper die and the slitting lower die.

[0016] The utility model is further configured as follows: a first slitting upper limit column is provided at one end of the upper slitting base, and a second slitting upper limit column is provided at the other end of the upper slitting base, and a slitting lower limit column is provided on the lower slitting base, and the positions of the first slitting upper limit column and the slitting lower limit column correspond to each other; when the upper slitting mold and the lower slitting mold are closed, the first slitting upper limit column abuts against the lower slitting limit column, and at the same time, the second slitting upper limit column abuts against the lower pressing surface.

[0017] In summary, the beneficial effects achieved by the present invention are as follows:

[0018] (1) The forming mold in the utility model adopts a special heat-sealing mold and a slitting mold to heat-seal and cut the non-PVC infusion bag, respectively. The heat-sealing mold and the slitting mold are respectively arranged at the bag heat-sealing station and the bag slitting station, thereby avoiding the mutual influence between the heat-sealing process and the cutting process, improving the heat-sealing effect, and especially avoiding the influence of the cutting process on the heat-sealing quality of the bag body;

[0019] (2) A cooling plate for cooling the bag structure of the non-PVC infusion bag is provided on both the upper heat-sealing base and the lower heat-sealing base, which can greatly improve the influence of the high temperature of the heat-sealing mold on the non-heat-sealing area of ​​the infusion bag, and is conducive to improving the product quality of the finished infusion bag;

[0020] (3) Since the heat-sealing limit column and the slitting limit column provided between the heat-sealing upper mold and the heat-sealing lower mold, and between the slitting upper mold and the slitting lower mold, are directly fixed on the heat-sealing upper mold and the heat-sealing lower mold or the slitting upper mold and the slitting lower mold, they are not affected by the infusion bag, and the gap distance between the heat-sealing upper mold and the heat-sealing lower mold, as well as the gap distance between the slitting upper mold and the slitting lower mold can always be guaranteed and accurately controlled, thereby ensuring the stability of the non-PVC infusion bag molding mold during production operation and ensuring the production quality of the infusion bag products;

[0021] (4) A segmented heating rod is used as the heating source. Each heating segment generates heat independently and its temperature is detected by a thermocouple, which greatly improves the balance of temperature control of the heat-sealing mold and significantly improves the bag making quality of non-PVC infusion bags. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the specification will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 This is a schematic diagram of the shape and structure of a non-PVC infusion bag;

[0024] Figure 2 It is a top view of the heat-closing mold in the utility model;

[0025] Figure 3 It is a front view of the hot closing mold in the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the segmented heating rod in the utility model;

[0027] Figure 5 It is a top view of the heat-sealed lower mold in the utility model;

[0028] Figure 6 It is a top view of the cutting upper mold in the utility model;

[0029] Figure 7 It is a top view of the cutting mold in the utility model.

[0030] In the figure: 1. Heat sealing mold;

[0031] 11. Heat-sealed upper mold; 111. Heat-sealed upper base; 112. Upper heat-sealed surface; 113. Upper base non-heat-sealed surface; 114. Upper cooling plate; 115. First heat-sealed upper limit post; 116. Second heat-sealed upper limit post;

[0032] 12. Heat-sealing lower mold; 121. Heat-sealing lower base; 122. Lower heat-sealing surface; 123. Lower base non-heat-sealing surface; 124. Lower cooling plate; 125. Heat-sealing lower limit column;

[0033] 13. Thermocouple; 14. Segmented heating rod; 141. First heating section; 142. Second heating section; 143. Third heating section;

[0034] 2. Cutting mold;

[0035] 21. Slitting upper die; 211. Slitting upper base; 212. Upper pressing surface; 213. Settling area; 214. First slitting upper limit post; 215. Second slitting upper limit post; 216. Slitting knife;

[0036] 22. Cutting lower mold; 221. Cutting lower base; 222. Lower pressing surface; 223. Lower base non-pressing area; 224. Cutting lower limit column;

[0037] 3. Non-PVC infusion bag; 31. Bag structure; 32. Edge structure. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention are described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. For ease of explanation, the terms "vertical", "horizontal", "left", "right", "upper", "lower", "inner", "outer", "bottom", etc. used in this specification indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application.

[0039] It should be noted that the embodiments of the present invention and the features involved in the embodiments can be combined with each other without conflict. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0040] As attached Figure 1 As shown, the non-PVC infusion bag 3 in the prior art can be divided into a bag body structure 31 for storing liquid medicine and an edge structure 32 located on the four edges of the bag body structure 31 for edge sealing.

[0041] As attached Figure 2 and attached Figure 5-7 As shown, a forming mold for a non-PVC infusion bag includes a heat-sealing mold 1 arranged at a bag body heat-sealing station and a slitting mold 2 arranged at a bag body slitting station.

[0042] The heat-sealing mold 1 is used for hot-pressing the non-PVC infusion bag 3. The heat-sealing mold 1 includes a heat-sealing upper mold 11 and a heat-sealing lower mold 12 which are symmetrically arranged up and down. The heat-sealing upper mold 11 and the heat-sealing lower mold 12 are both rectangular plate-shaped structures. In this embodiment, in order to take into account both production efficiency and operation difficulty, a set of heat-sealing molds 1 can simultaneously heat-press four infusion bags. In other embodiments, any integer number of infusion bags can also be processed simultaneously. When actually put into use, the heat-sealing upper mold 11 and the heat-sealing lower mold 12 will be driven by special upper and lower actuators to close and maintain the time required by the heat-sealing process to implement hot-pressing molding of the multi-layer co-extruded film.

[0043] A heat-sealing upper base 111 is provided on one side of the heat-sealing upper mold 11 facing the heat-sealing lower mold 12. The heat-sealing upper base 111 is a flat plate structure fixed on the heat-sealing upper mold 11, and is provided with an upper heat-sealing surface 112 for heating the edge structure 32 of the non-PVC infusion bag 3.

[0044] The shape and contour of the upper heat-sealing surface 112 are adapted to the shape and contour of the edge structure 32 of the non-PVC infusion bag 3 so as to perform heat-pressing molding on the edge structure 32. Since the heat-sealing mold 1 simultaneously heat-presses four infusion bags, four upper heat-sealing surfaces 112 are arranged side by side on the heat-sealing upper base 111. There is an upper base non-heat-sealing surface 113 that does not need to be heated between two adjacent upper heat-sealing surfaces 112, and the upper base non-heat-sealing surface 113 is arranged lower than the upper heat-sealing surface 112 so that the upper heat-sealing surface 112 is fully in contact with the edge structure 32, while preventing the upper base non-heat-sealing surface 113 from affecting the heat-sealing effect.

[0045] As attached Figure 2-4 As shown, the heat-sealing mold 1 also includes a segmented heating rod 14 for heating the edge structure 32 of the non-PVC infusion bag 3 and a thermocouple 13 for measuring temperature.

[0046] The segmented heating rods 14 are correspondingly arranged on the side of the upper heat-sealing surface 112 away from the non-PVC infusion bag 3 , and each segmented heating rod 14 is arranged through the heat-sealing upper mold 11 .

[0047] Each segmented heating rod 14 includes a plurality of heating segments. For example, in the present embodiment, the segmented heating rod 14 includes a first heating segment 141, a second heating segment 142 and a third heating segment 143. Each heating segment is connected to a power source via a respective wire, so that each heating segment can be controlled to generate heat independently.

[0048] Thermocouple 13 is a temperature measuring element in the prior art. The temperature of each heating section is measured by a thermocouple 13 and fed back to the control device. The control device controls the power-on heating time of each heating section according to the process parameters and thus controls the temperature of the upper heat sealing surface 112.

[0049] As attached Figure 2 and attached Figure 5 As shown, a heat-sealing lower base 121 is provided on the side of the heat-sealing lower mold 12 facing the heat-sealing upper mold 11. The heat-sealing lower base 121 is a flat plate-shaped structure fixed on the heat-sealing lower mold 12, and the side of the heat-sealing lower base 121 facing the non-PVC infusion bag 3 is the lower heat-sealing surface 122. The lower heat-sealing surface 122 cooperates with the upper heat-sealing surface 112 to clamp and heat the edge structure 32 to complete the sealing. The lower base non-heat-sealing surface 123 on the heat-sealing lower base 121 at the bag opening of the non-PVC infusion bag 3 is lower than the lower heat-sealing surface 122, thereby providing sufficient space for the bag opening of the infusion bag.

[0050] An upper cooling plate 114 and a lower cooling plate 124 for cooling the bag structure 31 of the non-PVC infusion bag 3 are respectively arranged at corresponding positions on the heat-sealing upper base 111 and the heat-sealing lower base 121. The upper cooling plate 114 and the lower cooling plate 124 are both connected to the heat-sealing upper base 111 or the heat-sealing lower base 121 through a conventional spring structure, so that when the bag structure 31 of the non-PVC infusion bag 3 is sandwiched between the upper cooling plate 114 and the lower cooling plate 124, the upper cooling plate 114 and the lower cooling plate 124 can be close to the bag structure 31 without affecting the heat-sealing effect of the non-PVC infusion bag 3, thereby greatly improving the influence of the high temperature of the heat-sealing mold 1 on the non-PVC heat-sealing area of ​​the infusion bag, which is conducive to improving the product quality of the finished infusion bag.

[0051] Specifically, the upper cooling plate 114 and the lower cooling plate 124 are both made of materials with good thermal conductivity, and the upper cooling plate 114 and the lower cooling plate 124 are both provided with a cooling water circulation system in the prior art on their respective sides facing away from the non-PVC infusion bag 3. The heat of the upper cooling plate 114 and the lower cooling plate 124 is taken away by cooling water through a cooling water inlet pipe and a cooling water outlet pipe, thereby achieving cooling of the bag structure 31.

[0052] A heat-sealing limit column is further provided between the heat-sealing upper mold 11 and the heat-sealing lower mold 12 , and the heat-sealing limit column is used to control the gap distance between the heat-sealing upper mold 11 and the heat-sealing lower mold 12 .

[0053] Specifically, a first heat-sealing upper limit post 115 is disposed at one end of the heat-sealing upper base 111 , a second heat-sealing upper limit post 116 is disposed at the other end of the heat-sealing upper base 111 , and a heat-sealing lower limit post 125 is disposed on the heat-sealing lower base 121 .

[0054] The first heat-sealing upper limit pin 115 corresponds to the heat-sealing lower limit pin 125 in position, and both are cylindrical columnar structures with matching cross-sectional sizes. The second heat-sealing upper limit pin 116 is a cylindrical columnar structure with a cross-sectional area smaller than that of the first heat-sealing upper limit pin 115 .

[0055] The first heat-sealing upper limit pin 115 and the second heat-sealing upper limit pin 116 are screwed and fixed on the heat-sealing upper base 111 by screwing, and the heat-sealing lower limit pin 125 is screwed and fixed on the heat-sealing lower base 121 by screwing, and the sum of the heights of the first heat-sealing upper limit pin 115 and the heat-sealing lower limit pin 125 is the same as the height of the second heat-sealing upper limit pin 116, so that when the heat-sealing upper mold 11 and the heat-sealing lower mold 12 are closed, the first heat-sealing upper limit pin 115 abuts against the heat-sealing lower limit pin 125 while the second heat-sealing upper limit pin 116 abuts against the lower heat-sealing surface 122. The setting of the heat-sealing limit pins can ensure and accurately control the gap distance between the heat-sealing upper mold 11 and the heat-sealing lower mold 12, and ensure the stability of the heat-sealing mold 1 during production operation.

[0056] As attached Figure 6-7 As shown, the slitting die 2 is used for cutting and separating the non-PVC infusion bag 3, and the slitting die 2 includes an upper slitting die 21 and a lower slitting die 22 which are symmetrically arranged up and down.

[0057] The slitting upper die 21 and the slitting lower die 22 are both rectangular plate-shaped structures. In this embodiment, since the slitting station is located downstream of the heat-sealing station, in order to adapt to the heat-sealing die 1, a set of slitting dies 2 can also slitting and forming four infusion bags at the same time. When put into use, the slitting upper die 21 and the slitting lower die 22 will also be driven by a dedicated upper and lower actuator to close and maintain the time required by the slitting process to implement slitting and forming of the multi-layer co-extruded film.

[0058] The upper slitting base 211 is provided on one side of the upper slitting die 21 facing the lower slitting die 22. The upper slitting base 211 is a flat plate structure fixed on the upper slitting die 21, and is provided with an upper pressing surface 212 capable of surrounding the edge structure 32 of the non-PVC infusion bag 3. The shape profile of the upper pressing surface 212 is adapted to the shape profile of the edge structure 32 of the non-PVC infusion bag 3, so that the upper pressing surface 212 compacts the edge structure 32 to cut the non-PVC infusion bag 3.

[0059] Since the slitting die 2 simultaneously slits and forms four infusion bags, four upper pressing surfaces 212 are arranged in parallel on the slitting upper base 211. A settling area 213 lower than the upper pressing surfaces 212 exists between two adjacent upper pressing surfaces 212, so that the upper pressing surfaces 212 can fully compact the edge structure 32.

[0060] A slitting knife 216 for cutting and separating the non-PVC infusion bag 3 is also fixed on the slitting upper base 211. The slitting knife 216 is fixed on the side of the slitting upper base 211 facing the slitting lower mold 22 through a conventional conical structure strip, and the slitting knife 216 is located between two adjacent upper pressing surfaces 212.

[0061] A slitting lower base 221 is provided on one side of the slitting lower die 22 facing the slitting upper die 21. The slitting lower base 221 is a flat plate-shaped structure fixed on the slitting lower die 22. The side of the slitting lower base 221 facing the slitting upper die 21 is the lower pressing surface 222. The lower pressing surface 222 cooperates with the upper pressing surface 212 to clamp the edge structure 32 to complete the slitting. The lower base non-pressing area 223 on the slitting lower base 221 at the bag opening of the non-PVC infusion bag 3 is lower than the lower pressing surface 222, thereby providing sufficient space for the bag opening of the infusion bag.

[0062] A slitting limit column is provided between the slitting upper die 21 and the slitting lower die 22 , and the slitting limit column is used to control the gap distance between the slitting upper die 21 and the slitting lower die 22 .

[0063] Specifically, a first slitting upper limit post 214 is disposed at one end of the slitting upper base 211 , a second slitting upper limit post 215 is disposed at the other end of the slitting upper base 211 , and a slitting lower limit post 224 is disposed on the slitting lower base 221 .

[0064] The first slitting upper limit post 214 corresponds to the position of the slitting lower limit post 224, and both are cylindrical columnar structures with matching cross-sectional sizes. The second slitting upper limit post 215 is a cylindrical columnar structure with a cross-sectional area smaller than that of the first slitting upper limit post 214.

[0065] The first slitting upper limit pin 214 and the second slitting upper limit pin 215 are screwed and fixed on the slitting upper base 211 by screwing, and the slitting lower limit pin 224 is screwed and fixed on the slitting lower base 221 by screwing, and the sum of the heights of the first slitting upper limit pin 214 and the slitting lower limit pin 224 is the same as the height of the second slitting upper limit pin 215, so that when the slitting upper mold 21 and the slitting lower mold 22 are closed, the first slitting upper limit pin 214 abuts against the slitting lower limit pin 224 while the second slitting upper limit pin 215 abuts against the lower pressing surface 222. The setting of the slitting limit pin can ensure and accurately control the gap distance between the slitting upper mold 21 and the slitting lower mold 22, ensure the stability of the slitting mold 2 during production operation, and ensure the production quality of the infusion bag products.

[0066] The implementation principle of the above embodiment is:

[0067] When the forming mold of the non-PVC infusion bag 3 is working, first, the control device controls each segmented heating rod 14 to be powered on and heated, until the temperature of the upper heat-sealing surface 112 reaches the temperature required for the heat-sealing process, and then the multi-layer co-extruded film is transferred to the bag body heat-sealing station by a dedicated film conveying mechanism, and the upper heat-sealing mold 11 and the lower heat-sealing mold 12 are driven by a dedicated upper and lower actuator to close and maintain the time required by the heat-sealing process, so as to perform hot pressing molding on the multi-layer co-extruded film. During the heat-sealing process, the upper heat-sealing surface 112 and the lower heat-sealing surface 122 cooperate to press and heat the edge structure 32 of the non-PVC infusion bag 3, and the upper cooling plate 114 and the lower cooling plate 124 are in close contact with the bag body structure 31 and realize cooling of the bag body structure 31. The infusion bag after hot pressing is transported to the bag slitting station by a dedicated bag conveying mechanism. The upper slitting mold 21 and the lower slitting mold 22 are also driven by dedicated upper and lower actuators to close and maintain the time required by the slitting process. While the upper pressing surface 212 and the lower pressing surface 222 press the edge structure 32, the slitting knife 216 performs slitting and forming on the infusion bag body.

[0068] Although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A molding die for a non-PVC infusion bag, characterized in that: The invention comprises a heat-sealing mold (1) arranged at a bag body heat-sealing station and a slitting mold (2) arranged at a bag body slitting station, wherein the heat-sealing mold (1) is used for hot pressing and forming a non-PVC infusion bag (3), and the slitting mold (2) is used for cutting and separating the non-PVC infusion bag (3). The heat-sealing mold (1) comprises an upper heat-sealing mold (11) and a lower heat-sealing mold (12) which are symmetrically arranged in the upper and lower parts, and the slitting mold (2) comprises an upper slitting mold (21) and a lower slitting mold (22) which are symmetrically arranged in the upper and lower parts.

2. The molding die for the non-PVC infusion bag according to claim 1, characterized in that: A heat-sealing upper base (111) is provided on the side of the heat-sealing upper mold (11) facing the heat-sealing lower mold (12); an upper heat-sealing surface (112) for heating the edge structure (32) of the non-PVC infusion bag (3) is provided on the heat-sealing upper base (111); and an upper cooling plate (114) for cooling the bag body structure (31) of the non-PVC infusion bag (3) is also provided on the heat-sealing upper base (111).

3. The molding die for the non-PVC infusion bag according to claim 2, characterized in that: A heat-sealing lower base (121) is arranged on the side of the heat-sealing lower mold (12) facing the heat-sealing upper mold (11), a lower heat-sealing surface (122) is arranged on the heat-sealing lower base (121), and a lower cooling plate (124) for cooling the bag structure (31) of the non-PVC infusion bag (3) is also arranged on the heat-sealing lower base (121).

4. The molding die for the non-PVC infusion bag according to claim 3, characterized in that: A heat-sealing limit column is provided between the heat-sealing upper mold (11) and the heat-sealing lower mold (12), and the heat-sealing limit column is used to control the gap distance between the heat-sealing upper mold (11) and the heat-sealing lower mold (12).

5. The molding die for the non-PVC infusion bag according to claim 4, characterized in that: A first heat-sealing upper limit post (115) is provided at one end of the upper heat-sealing base (111), and a second heat-sealing upper limit post (116) is provided at the other end of the upper heat-sealing base (111); a heat-sealing lower limit post (125) is provided on the lower heat-sealing base (121), and the positions of the first heat-sealing upper limit post (115) and the heat-sealing lower limit post (125) correspond to each other; when the upper heat-sealing mold (11) and the lower heat-sealing mold (12) are closed, the first heat-sealing upper limit post (115) abuts against the heat-sealing lower limit post (125), and at the same time, the second heat-sealing upper limit post (116) abuts against the lower heat-sealing surface (122).

6. The molding die for the non-PVC infusion bag according to claim 1, characterized in that: The heat-sealing mold (1) also includes a segmented heating rod (14) for heating the edge structure (32) of the non-PVC infusion bag (3), each of the segmented heating rods (14) includes a plurality of heating segments, and each of the heating segments generates heat independently.

7. The molding die for the non-PVC infusion bag according to claim 6, characterized in that: The heat-sealing mold (1) further comprises a thermocouple (13) for measuring temperature, and the temperature of each heating section is measured by a thermocouple (13).

8. The molding die for the non-PVC infusion bag according to claim 1, characterized in that: The upper slitting mold (21) is provided with an upper slitting base (211) on the side facing the lower slitting mold (22); the upper slitting base (211) is provided with an upper pressing surface (212) capable of surrounding the edge structure (32) of the non-PVC infusion bag (3); the lower slitting mold (22) is provided with a lower slitting base (221) on the side facing the upper slitting mold (21); the side of the lower slitting base (221) facing the upper slitting mold (21) is a lower pressing surface (222); and a slitting knife (216) for cutting and separating the non-PVC infusion bag (3) is fixed on the upper slitting base (211).

9. The molding die for the non-PVC infusion bag according to claim 8, characterized in that: A slitting limit column is provided between the slitting upper die (21) and the slitting lower die (22), and the slitting limit column is used to control the gap distance between the slitting upper die (21) and the slitting lower die (22).

10. The molding die for the non-PVC infusion bag according to claim 9, characterized in that: A first slitting upper limit post (214) is provided at one end of the slitting upper base (211), and a second slitting upper limit post (215) is provided at the other end of the slitting upper base (211); a slitting lower limit post (224) is provided on the slitting lower base (221), and the positions of the first slitting upper limit post (214) and the slitting lower limit post (224) correspond to each other; when the slitting upper mold (21) and the slitting lower mold (22) are closed, the first slitting upper limit post (214) abuts against the slitting lower limit post (224), and at the same time, the second slitting upper limit post (215) abuts against the lower pressing surface (222).

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