Packaging film bag opening structure and processing device thereof

Abstract

The invention discloses a packaging film bag opening structure and a processing device thereof, and relates to the technical field of packaging film bags, the packaging film bag opening structure comprises an auxiliary opening mechanism arranged at a bag opening position; the auxiliary opening mechanism comprises a pair of connecting blocks and an elastic piece; wherein the connecting blocks are arranged on the two side walls of the top of the bag body respectively, and one ends of the connecting blocks abut against each other all the time; the elastic piece is arranged between the pair of connecting blocks; the elastic piece is used for providing pulling force for the pair of connecting blocks to get close to each other. By arranging the auxiliary opening mechanism, the opening size of the packaging film bag can be adjusted according to needs when the bag opening is opened, no waste is generated, and environmental protection is facilitated; meanwhile, a clamping structure for sealing the upper opening of the packaging film bag can be formed through the auxiliary opening mechanism, rapid sealing of the upper opening of the packaging film bag is achieved, and use is easy and convenient.

Description

Technical Field

[0001] The invention relates to the technical field of packaging film bags, and in particular to a packaging film bag opening structure and a processing device thereof. Background Art

[0002] Packaging film bags generally refer to various packaging bags made of plastic film; these packaging bags are widely used in daily commodity packaging, such as the outer packaging of food, clothing, electronic products, etc.; packaging film bags are characterized by lightness, good sealing, high transparency, and can be customized in size and thickness according to different needs; In the design of modern food packaging, especially in the packaging of snacks such as candies and dried fruits, it is considered that consumers often do not finish eating them all at once, so the packaging needs to be easy to open and easy to reclose; to achieve this goal, existing food packaging film bags usually integrate the design of easy-tear opening and self-sealing strip.

[0003] However, the opening structure of the above-mentioned food packaging film bag still has the following problems during use: After using the easy-tear opening to open the packaging film bag, a small piece of waste is usually left behind, which affects the overall recycling efficiency of the packaging film bag. On the other hand, the self-sealing strip is usually a long strip design with the same width as the packaging film bag, requiring the user to pinch it along the entire length to complete the seal. The operation is relatively cumbersome, and it is difficult to ensure that the ideal sealing effect is always achieved. Summary of the invention

[0004] In order to overcome the above technical problems, the purpose of the present invention is to provide a packaging film bag opening structure and a processing device thereof, so as to solve the problems mentioned in the above background technology that the current packaging film bags are complicated to operate during secondary sealing and have poor sealing effect.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A packaging film bag opening structure comprises an auxiliary opening mechanism arranged at the bag opening; the auxiliary opening mechanism comprises a pair of connecting blocks and an elastic member; wherein the pair of connecting blocks are respectively arranged on the two side walls of the top of the bag body, and one end of the pair of connecting blocks always keeps in contact with each other; the elastic member is arranged between the pair of connecting blocks; the elastic member is used to provide a pulling force for the pair of connecting blocks to approach each other.

[0006] Preferably, one side of the connection block is always in close contact with the side wall of the bag body, and the mutually abutting positions of a pair of the connection blocks coincide with the center line of the side wall of the bag body.

[0007] Preferably, a receiving groove is provided on the connecting block, and both ends of the elastic member are movably assembled in the receiving groove (33).

[0008] Preferably, the elastic member is a U-shaped structure, both ends of the U-shaped structure are provided with convex shafts, the inner walls of the two accommodating grooves are provided with grooves corresponding to the convex shafts, and the two convex shafts are movably connected in the grooves of the two accommodating grooves respectively.

[0009] A processing device for a packaging film bag opening structure comprises an injection molding machine; the injection molding machine comprises a movable mold and a static mold; the static mold is provided with a protrusion matched with one side of a connecting block, and the other side of the movable mold is provided with a recessed portion matched with the other side of the connecting block.

[0010] Preferably, a first auxiliary material removal mechanism is provided on the static mold; the first auxiliary material removal mechanism includes a top shaft and a driving mechanism; the top shaft has the same structure as the convex shaft, and the driving mechanism is provided on the static mold; the driving mechanism is used to drive the top shaft to move along its axial direction.

[0011] Preferably, the driving mechanism includes a first piston, a ventilation pipe and a telescopic airbag; the ventilation pipe is arranged in the raised portion, the first piston is slidably connected in the ventilation pipe, and one end of the top shaft is connected to the first piston, the telescopic airbag is arranged in the static mold, and the ventilation pipe is connected to the telescopic airbag; when the telescopic airbag is compressed, the air pressure in the ventilation pipe pushes the first piston to move, thereby driving the top shaft to move along its axis.

[0012] Preferably, the driving mechanism also includes a connecting shaft, a sliding sleeve and a first compression spring; the connecting shaft is coaxially connected between the top shaft and the first piston, the sliding sleeve is sleeved on the connecting shaft, and the sliding sleeve is connected to the ventilation pipe, and the first compression spring is arranged between the sliding sleeve and the first piston.

[0013] Preferably, a top plate is provided on the telescopic airbag, a telescopic shaft is provided between the top plate and the static mold, and a second compression spring is sleeved on the telescopic shaft; the second compression spring is used to drive the telescopic airbag to restore the expanded state when the telescopic airbag loses pressure.

[0014] Preferably, a second auxiliary unloading mechanism is provided on the raised portion, and the second auxiliary unloading mechanism includes a second piston, a rotating plate and a connecting line; a vent hole connected to the vent pipe is opened in the raised portion, and the second piston is slidably connected to the vent hole, the rotating plate is hinged to the static mold, and a connecting line is wound around the rotating plate, and one end of the connecting line is connected to the second piston; a torsion spring is provided at the hinge position between the rotating plate and the raised portion; a protective cover is provided on the rotating plate, and the protective cover is provided on the connecting line wound around the rotating plate.

[0015] Beneficial effects of the present invention: 1. By setting up the auxiliary opening mechanism, when opening the bag mouth, firstly, by pulling the two connecting blocks to rotate, the two sides of the bag mouth are pushed by the connecting blocks to form a triangular opening; and by controlling the rotation amplitude of the two connecting blocks to control the size of the triangular opening, the opening degree of the bag mouth can be controlled, and no fragmentary waste will be generated, which is beneficial to environmental protection; at the same time, the auxiliary opening mechanism can be used as a clamping structure for sealing the opening on the packaging film bag, so as to realize the rapid sealing of the opening on the packaging film bag, which is simple and convenient to use; 2. By setting the first auxiliary unloading mechanism, a combined mold structure is formed, so that during mold closing and injection molding, the extended top shaft cooperates with the internal space of the mold closing to form a complete structure that is exactly the same as the connection block structure, which is convenient for one-time molding; when the molded connection block needs to be taken out, the top shaft is driven by the driving mechanism to shrink into the protruding part until the top shaft is separated from the molded groove. At this time, the connection block can be directly taken out to achieve rapid unloading; 3. By setting up a second auxiliary unloading mechanism, it is used in conjunction with the first auxiliary unloading mechanism to form a rapid ejection structure. The first auxiliary unloading mechanism drives the rotating plate to eject the formed connecting block, so that the connecting block is separated from the static mold, and automatic unloading is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the packaging film bag of the present invention; Figure 2 It is a three-dimensional enlarged structural schematic diagram of the auxiliary opening mechanism of the present invention; Figure 3 It is a schematic diagram of a three-dimensional exploded and enlarged structure of the auxiliary opening mechanism of the present invention; Figure 4 It is a three-dimensional enlarged structural schematic diagram of the auxiliary opening mechanism of the present invention when it is used to open a packaging film bag; Figure 5 It is a three-dimensional enlarged structural schematic diagram of the auxiliary opening mechanism of the present invention when it is used to reseal the packaging film bag; Figure 6 It is a three-dimensional enlarged structural schematic diagram of the injection molding machine of the present invention; Figure 7 It is a three-dimensional enlarged structural schematic diagram of the movable mold and the static mold in the mold closing state of the present invention; Figure 8 It is a schematic diagram of the main cutaway enlarged structure of the movable mold and the static mold of the present invention when the mold is closed; Fig. 9 It is a schematic diagram of the three-dimensional enlarged structure of the movable mold of the present invention; Fig.10 It is a schematic diagram of a three-dimensional enlarged structure of a static mold of the present invention; Fig.11It is a schematic diagram of a partially cutaway three-dimensional enlarged structure of a static mold of the present invention; Fig.12 The present invention Fig.11 A schematic diagram of the enlarged structure of the middle A area; Fig.13 The present invention Fig.11 Schematic diagram of the enlarged structure of the middle B area; Fig.14 It is a three-dimensional enlarged structural schematic diagram of the second auxiliary feeding mechanism of the present invention.

[0018] In the figure: 1, bag body; 2, bag mouth; 3, auxiliary opening mechanism; 31, connecting block; 32, elastic member; 33, accommodating groove; 34, convex shaft; 35, groove; 4, injection molding machine; 41, movable mold; 42, static mold; 43, raised part; 44, recessed part; 45, first auxiliary unloading mechanism; 451, top shaft; 452, driving mechanism; 4521, connecting shaft; 4522, sliding sleeve; 4523, first compression spring; 4524, vent pipe; 4525, telescopic airbag; 4526, top plate; 4527, telescopic shaft; 4528, second compression spring; 46, second auxiliary unloading mechanism; 461, vent hole; 462, second piston; 463, rotating plate; 464, connecting line; 465, torsion spring; 466, protective cover. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figure 1-Figure 5 As shown, a packaging film bag opening structure includes an auxiliary opening mechanism 3 arranged at the bag opening 2. It can be understood that the auxiliary opening mechanism 3 can be two, that is, Figure 1 As shown, two auxiliary opening mechanisms 3 are respectively arranged at the left and right sides of the bag opening 2; the auxiliary opening mechanism 3 includes: a pair of connecting blocks 31 and an elastic member 32; wherein, the pair of connecting blocks 31 are respectively arranged at the two side walls of the top of the bag body 1, and one end of the pair of connecting blocks 31 always keeps in contact with each other; the elastic member 32 is arranged between the pair of connecting blocks 31; the elastic member 32 is used to provide pressure for the pair of connecting blocks 31 to approach each other; one side of the connecting block 31 is always in close contact with the side wall of the bag body 1, and the mutually intrusive position of the pair of connecting blocks 31 coincides with the center line of the side wall of the bag body 1; it can be understood that the center line means Figure 1The middle line is located at the middle position of the left or right side of the bag body 1 along the up-down direction; the connecting block 31 is provided with a receiving groove 33, and the two ends of the elastic member 32 are movably assembled in the receiving groove 33.

[0021] It should be noted that the left and right sides of the bag body 1 are folded inward along the midline of the left and right sides of the bag body 1 at the position of the bag opening 2, and a pair of connecting blocks 31 are arranged at the folded positions along the midline of the left and right sides; and the side of the connecting block 31 opposite to the accommodating groove 33 is always adhered to the side wall of the bag body 1; when the bag body 1 needs to be opened, the folded parts on the left and right sides of the bag opening 2 are first pulled to unfold them; this action causes the pair of connecting blocks 31 to rotate around one end thereof while maintaining a state of contact with each other, so that the front and back sides of the bag body 1 are subjected to tension at the bag opening 2; as the connecting block 31 rotates to a certain angle, the bag opening 2 is gradually partially opened, and an opening with a triangular cross-section is formed (such as Figure 4 Specifically, the left and right sides of the bag body 1 are formed by hot pressing and folded inward to form a folded portion, and the two groups of inner side walls of the bag body 1 at the folded portion are respectively bonded to the two connecting blocks 31. When the two connecting blocks 31 are rotated at a certain angle, the inner side walls of the bag body 1 at the folded portion are connected to the front and rear of the bag body 1 (with Figure 4 The outer side walls on both sides (based on the perspective) are subjected to the tension of the two connecting blocks 31 rotating, so that the two parts of the side walls that were originally bonded together are separated from each other and torn apart, forming a Figure 4 The user can control the opening degree of the bag mouth 2 by adjusting the opening size of the triangular opening as needed; if a larger opening is needed, due to the formation of the triangular opening, the packaging film bag can be manually pulled to both sides through the triangular opening to move the two side walls of the bag body 1 away from each other, thereby expanding the opening and facilitating access to the items in the bag; This design not only realizes the flexible opening of the bag opening 2, but also can control the size of the packaging film bag opening according to specific needs, ensuring that the use process is safe and convenient; When the opening of the bag mouth 2 needs to be sealed, firstly rotate the pair of connecting blocks 31 by 180° to the position as shown in FIG. Figure 5 The position shown; this step makes the connecting block 31 at least partially cover the opening position of the bag opening 2, and the pressure applied by the elastic member 32 ensures that the connecting block 31 is close to the bag opening 2, thereby achieving a preliminary partial closure; if a complete sealing effect is to be achieved, based on the above steps, the pair of connecting blocks 31 are further pushed to move along the edge of the bag opening 2 until they completely cover the entire opening position; during this process, the elastic member 32 continuously provides pressure to ensure that the connecting block 31 is in close contact with the bag opening 2, and finally the opening of the bag opening 2 is fully clamped and sealed; In summary, through the rotation and displacement of the connecting block 31, combined with the pressure provided by the elastic member 32, the mechanism can effectively adjust the sealing degree from partial sealing to complete sealing, which is flexible and reliable.

[0022] like Figure 2-Figure 5 As shown, the elastic member 32 is a U-shaped structure, with protruding shafts 34 at both ends of the U-shaped structure, and the inner walls of the two receiving grooves 33 are provided with grooves 35 corresponding to the protruding shafts 34, and the two protruding shafts 34 are movably connected to the grooves 35 of the two receiving grooves 33 respectively.

[0023] It should be noted that, by adapting the U-shaped structure of the elastic member 32 to the accommodating groove 33, the purpose of reducing the overall width of the auxiliary opening mechanism 3 is achieved, and the sealing effect of the bag opening 2 on the bag body 1 is ensured; by limiting the rotation of the convex shaft 34 in the groove 35, during the rotation of the connecting block 31, the elastic member 32 always provides a force to drive the pair of connecting blocks 31 to approach each other, thereby ensuring control stability; by the rotation setting of the elastic member 32 and the connecting block 31, the rotation of the pair of connecting blocks 31 is not affected, and by the cooperation of the connecting block 31 and the side wall of the bag body 1, when the pair of connecting blocks 31 rotate, the ends of the pair of connecting blocks 31 always rotate in a state of mutual conflict, thereby improving the control stability and ensuring the clamping and sealing effect of the opening position of the bag opening 2.

[0024] like Figure 1-Figure 14 As shown, a mold of a packaging film bag opening structure processing device includes an injection molding machine 4; the injection molding machine 4 includes a movable mold 41 and a static mold 42; the static mold 42 is provided with a protrusion 43 adapted to one side of the connecting block 31, and the other side of the movable mold 41 is provided with a recessed portion 44 adapted to the other side of the connecting block 31; the static mold 42 is provided with a first auxiliary unloading mechanism 45; the first auxiliary unloading mechanism 45 includes a top shaft 451 and a driving mechanism 452; the top shaft 451 has the same structure as the convex shaft 34, and the driving mechanism 452 is provided on the static mold 42; the driving mechanism 452 is used to drive the top shaft 451 to move along its axial direction.

[0025] It should be noted that when the connection block 31 is injection molded, since the groove 35 on the connection block 31 is symmetrically recessed, it is difficult to remove the connection block 31 after injection molding. Therefore, a retractable top shaft 451 structure is provided to facilitate the rapid removal of the connection block 31 after molding. Specifically, the movement of the top shaft 451 is controlled by a driving mechanism 452, so that during mold closing and injection molding, the extended top shaft 451 cooperates with the internal space of the mold closing to form a complete structure that is exactly the same as the structure of the connection block 31, and the top shaft 451 cooperates to form the groove 35. When the molded connection block 31 needs to be removed, the top shaft 451 is driven by the driving mechanism 452 to retract into the protrusion 43 until the top shaft 451 is separated from the molded groove 35. At this time, the connection block 31 can be directly removed to achieve the purpose of rapid removal.

[0026] like Figure 10-12As shown, the driving mechanism 452 includes a first piston, a vent pipe 4524 and a telescopic airbag 4525; it can be understood that the telescopic airbag 4525 is an elastic and telescopic structure; the vent pipe 4524 is arranged in the raised portion 43, the first piston is slidably connected in the vent pipe 4524, and one end of the top shaft 451 is connected to the first piston, the telescopic airbag 4525 is arranged in the static mold 42, and the vent pipe 4524 is connected to the telescopic airbag 4525; when the telescopic airbag 4525 is compressed, the air pressure in the vent pipe 4524 pushes the first piston to move, thereby driving the top shaft 451 to move along its axis.

[0027] It should be noted that when the movable mold 41 and the static mold 42 are molded together, the telescopic airbag 4525 is compressed, so that the air in the telescopic airbag 4525 squeezes the top shaft 451 through the vent pipe 4524, pushing the top shaft 451 to move outside the protrusion 43 until the top shaft 451 extends to the same length as the protrusion 34; then the raw material is injected into the space where the movable mold 41 and the static mold 42 are molded together through the injection hole on the static mold 42. When the raw material is cooled and formed, the movable mold 41 and the static mold 42 are driven to separate. As the movable mold 41 and the static mold 42 are separated, the telescopic airbag 4525 loses the compression force and automatically resets. At this time, negative pressure is formed in the vent pipe 4524, pulling the top shaft 451 to move into the protrusion 43 and reset until the top shaft 451 is separated from the groove 35. At this time, the connecting block 31 can be taken out, thereby achieving the purpose of rapid discharge.

[0028] like Figure 10-12 As shown, the driving mechanism 452 also includes a connecting shaft 4521, a sleeve 4522 and a first compression spring 4523; the connecting shaft 4521 is coaxially connected between the top shaft 451 and the first piston, the sleeve 4522 is sleeved on the connecting shaft 4521, and the sleeve 4522 is connected to the ventilation pipe 4524, and the first compression spring 4523 is arranged between the sleeve 4522 and the first piston; a top plate 4526 is arranged on the telescopic airbag 4525, a telescopic shaft 4527 is arranged between the top plate 4526 and the static mold 42, and a second compression spring 4528 is sleeved on the telescopic shaft 4527; the second compression spring 4528 is used to drive the telescopic airbag 4525 to restore the expanded state when the telescopic airbag 4525 loses pressure.

[0029] It should be noted that after the connecting block 31 is formed, the first auxiliary unloading mechanism 45 and the groove 35 are in close contact to form a large friction. To ensure that the telescopic airbag 4525 can be normally reset, when the movable mold 41 and the static mold 42 are separated, the second compression spring 4528 pushes the top plate 4526 to move under the guidance of the telescopic shaft 4527, thereby pushing the telescopic airbag 4525 to reset. At the same time, the first compression spring 4523 pushes the first piston to move, thereby driving the top shaft 451 to retract into the protrusion 43. In this way, the first compression spring 4523 and the second compression spring 4528 provide auxiliary thrust for the reset of the telescopic airbag 4525, thereby driving the top shaft 451 to automatically and quickly reset and separate from the groove 35.

[0030] like Figure 10-11 and Figure 13-14 As shown, a second auxiliary material removal mechanism 46 is provided on the raised portion 43, and the second auxiliary material removal mechanism 46 includes a second piston 462, a rotating plate 463 and a connecting line 464; a vent hole 461 connected to the vent pipe 4524 is opened in the raised portion 43, the second piston 462 is slidably connected to the vent hole 461, the rotating plate 463 is hinged to the static mold 42, a connecting line 464 is wound around the rotating plate 463, and one end of the connecting line 464 is connected to the second piston 462; a torsion spring 465 is provided at the hinge position of the rotating plate 463 and the raised portion 43; a protective cover 466 is provided on the rotating plate 463, and the protective cover 466 is covered on the connecting line 464 wound around the rotating plate 463.

[0031] It should be noted that although the driving top shaft 451 is separated from the groove 35 so that the connection block 31 can be taken out after molding, due to the injection molding, the injection molding residue will be left in the injection molding hole. Therefore, it is necessary to manually remove the connection block 31 from the static mold 42, which is time-consuming and labor-intensive, and has safety hazards. Therefore, the second auxiliary unloading mechanism 46 is provided and used in conjunction with the first auxiliary unloading mechanism 45, so that after the connection block 31 is molded, when the dynamic mold 41 and the static mold 42 are separated, the connection block 31 can be automatically pushed out. Specifically, when the movable mold 41 and the static mold 42 are separated, the telescopic airbag 4525 automatically resets, so that negative pressure is generated in the vent pipe 4524. At this time, the negative pressure pulls the second piston 462 to move, and the second piston 462 pulls the connecting line 464 to move, and the connecting line 464 pulls the rotating plate 463 to rotate, and then the formed connecting block 31 is ejected through the rotating plate 463, so that the connecting block 31 is separated from the static mold 42, and the purpose of automatic unloading is achieved; When the rotating plate 463 rotates to eject the connecting block 31, the torsion spring 465 is compressed. When the next mold closing causes the telescopic airbag 4525 to be compressed, thereby generating a positive pressure in the vent pipe 4524, the compressed torsion spring 465 drives the rotating plate 463 to rotate and reset, thereby resetting the rotating plate 463 and the second piston 462, thereby facilitating the next automatic unloading operation.

[0032] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A packaging film bag opening structure, characterized in that: It comprises an auxiliary opening mechanism (3) arranged at the position of the bag opening (2), and the auxiliary opening mechanism (3) comprises: A pair of connection blocks (31), the pair of connection blocks (31) being respectively arranged on two side walls of the top of the bag body (1), and one end of the pair of connection blocks (31) always being in contact with each other; and an elastic member (32), wherein the elastic member (32) is arranged between the pair of connecting blocks (31); the elastic member (32) is used to provide a pulling force for the pair of connecting blocks (31) to move closer to each other; The connection block (31) is provided with a receiving groove (33), and both ends of the elastic member (32) are movably assembled in the receiving groove (33); The side of the connecting block (31) opposite to the containing groove (33) is always adhered to the side wall of the bag body (1).

2. The packaging film bag opening structure according to claim 1, characterized in that: The mutually abutting positions of the pair of connection blocks (31) coincide with the midline of the side wall of the bag body (1).

3. The packaging film bag opening structure according to claim 2, characterized in that: The elastic member (32) is a U-shaped structure, with convex shafts (34) provided at both ends of the U-shaped structure, and inner walls of the two receiving grooves (33) are provided with grooves (35) corresponding to the convex shafts (34), and the two convex shafts (34) are movably connected to the grooves (35) of the two receiving grooves (33).

4. A processing device for a packaging film bag opening structure according to any one of claims 1 to 3, characterized in that: The invention comprises an injection molding machine (4); the injection molding machine (4) comprises a movable mold (41) and a static mold (42); the static mold (42) is provided with a protrusion (43) adapted to one side of a connection block (31), and the other side of the movable mold (41) is provided with a recess (44) adapted to the other side of the connection block (31).

5. The processing device of the packaging film bag opening structure according to claim 4, characterized in that: A first auxiliary material removal mechanism (45) is provided on the static mold (42); the first auxiliary material removal mechanism (45) comprises a top shaft (451) and a driving mechanism (452); the top shaft (451) has the same structure as the convex shaft (34), and the driving mechanism (452) is provided on the static mold (42); the driving mechanism (452) is used to drive the top shaft (451) to move along its axial direction.

6. The processing device of the packaging film bag opening structure according to claim 5, characterized in that: The driving mechanism (452) comprises a first piston, a vent pipe (4524) and a telescopic airbag (4525); the vent pipe (4524) is arranged in the raised portion (43); the first piston is slidably connected in the vent pipe (4524); one end of the top shaft (451) is connected to the first piston; the telescopic airbag (4525) is arranged in the static mold (42); the vent pipe (4524) is connected to the telescopic airbag (4525); when the telescopic airbag (4525) is compressed, the air pressure in the vent pipe (4524) pushes the first piston to move, thereby driving the top shaft (451) to move along its axis.

7. The processing device of the packaging film bag opening structure according to claim 6, characterized in that: The driving mechanism (452) further comprises a connecting shaft (4521), a sliding sleeve (4522) and a first compression spring (4523); the connecting shaft (4521) is coaxially connected between the top shaft (451) and the first piston, the sliding sleeve (4522) is sleeved on the connecting shaft (4521), and the sliding sleeve (4522) is connected to the ventilation pipe (4524), and the first compression spring (4523) is arranged between the sliding sleeve (4522) and the first piston.

8. The processing device of the packaging film bag opening structure according to claim 6, characterized in that: The telescopic airbag (4525) is provided with a top plate (4526), ​​a telescopic shaft (4527) is provided between the top plate (4526) and the static mold (42), and a second compression spring (4528) is sleeved on the telescopic shaft (4527); the second compression spring (4528) is used to drive the telescopic airbag (4525) to restore the expanded state when the telescopic airbag (4525) loses pressure.

9. The processing device of the packaging film bag opening structure according to claim 6, characterized in that: The protruding portion (43) is provided with a second auxiliary material discharge mechanism (46), the second auxiliary material discharge mechanism (46) comprising a second piston (462), a rotating plate (463) and a connecting line (464); a vent hole (461) connected to a vent pipe (4524) is provided in the protruding portion (43), the second piston (462) is slidably connected to the vent hole (461), the rotating plate (463) is hinged to the static mold (42), a connecting line (464) is wound around the rotating plate (463), one end of the connecting line (464) is connected to the second piston (462); a torsion spring (465) is provided at a hinged position between the rotating plate (463) and the protruding portion (43); a protective cover (466) is provided on the rotating plate (463), the protective cover (466) is provided on the connecting line (464) wound around the rotating plate (463).

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