Sub-packaging conveying mechanism of transparent film three-dimensional packaging machine

Abstract

The invention discloses a subpackage conveying mechanism of a transparent film three-dimensional packaging machine, and belongs to the technical field of packaging machines, and the subpackage conveying mechanism comprises a conveying line which is installed on a frame, extends in the preset direction and is used for bearing and conveying packaging boxes; the first cutting mechanism comprises a first panel fixed to the frame, a first air cylinder is installed at the top end of the first panel, a piston rod at the bottom of the first air cylinder penetrates through the first panel and extends to the moving plate, and first cutting knives are connected to the two sides of the bottom end of the moving plate correspondingly; the top end of the movable plate is connected with the first panel through a telescopic rod; and the film pressing mechanisms are arranged on the two sides of the first cutting mechanism. The technical problems that in the transparent film cutting process, due to the fact that the transparent film is soft and prone to deformation, the phenomena of inaccurate cutting and uneven notches exist in the cutting process, the rejection rate is high, and improvement of the product quality is affected are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging machines, and in particular relates to a packaging conveying mechanism of a transparent film three-dimensional packaging machine. Background Art

[0002] Packaging machinery refers to machinery that can complete all or part of the product and commodity packaging process. The packaging process includes the main processes of filling, wrapping, sealing, and related processes such as cleaning, stacking, and disassembly. In addition, packaging also includes processes such as metering or stamping on the package. Using machinery to package products can improve productivity, reduce labor intensity, adapt to the needs of large-scale production, and meet the requirements of cleanliness and hygiene.

[0003] The transparent film is made of polyurethane film, which is scratch-resistant, yellowing-resistant and super tough. With the help of the film's super strong winding force and retractability, the transparent film can compactly and fixedly bundle the products into a unit, making scattered small pieces into a whole. Even in an unfavorable environment, the product will not be loose or separated, and there are no sharp edges and stickiness to avoid damage.

[0004] The transparent film on the items needs to go through steps such as pressing and cutting during the transportation process. During the cutting process, the transparent film is soft and prone to deformation, resulting in inaccurate cutting and uneven cuts, a high scrap rate, and affecting the improvement of product quality. Summary of the invention

[0005] The purpose of the present invention is to provide a sub-packaging conveying mechanism involving a transparent film three-dimensional packaging machine to solve the technical problem that during the transparent film cutting process, the transparent film is relatively soft and prone to deformation, resulting in inaccurate cutting and uneven incisions, a high scrap rate, and affecting the improvement of product quality.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A sub-packaging conveying mechanism of a transparent film three-dimensional packaging machine, comprising:

[0008] A conveyor line, which is installed on the frame and extends along a preset direction to carry and convey packaging boxes;

[0009] A first cutting mechanism, the first cutting mechanism comprises a first panel fixed on the frame, a first cylinder is installed on the top of the first panel, a piston rod at the bottom of the first cylinder penetrates the first panel and extends to the movable plate, first cutting knives are connected to both sides of the bottom end of the movable plate, and the top of the movable plate and the first panel are connected by a telescopic rod;

[0010] A film pressing mechanism, the film pressing mechanism is placed on both sides of the first cutting mechanism, and the film pressing mechanism includes L-shaped bending plates placed on both sides of the top of the frame, the L-shaped bending plates are correspondingly connected with transverse slide grooves and vertical slide grooves in the horizontal direction and the height direction, the bottom end of the inner wall of the vertical slide groove is connected with a first slider through a first spring, the first sliders are connected through a first pressure roller, and the outer wall edge of the first pressure roller is provided with a rolling groove connected to the first slider;

[0011] The first slider and the second slider on the transverse slide groove are connected via a swing rod, both sides of the swing rod are mounted on the first slider and the second slider by a rotational connection, and one end of the second slider is movably connected to a second pressure roller via a bracket.

[0012] Furthermore, it also includes a second cutting mechanism, which includes a second panel placed on the frame, a second cylinder fixedly mounted on the second panel, a piston rod on the second cylinder passing through the second panel and extending to the second cutting knife, and the piston rod on the second cylinder is connected to a clamping assembly and a cutting assembly at the upper and lower ends of the mounting rod respectively.

[0013] Furthermore, the clamping assembly includes fixed blocks fixed on both sides of the mounting rod, a first inclined surface is provided on one side of the bottom surface of the fixed block, a movable plate installed on the pushing block is provided directly below the fixed block, a second inclined surface is provided on the movable plate that contacts and fits with the first inclined surface, one end of the pushing block is connected to a clamping plate symmetrical with the center of the frame, and one side of the extension section of the pushing block is connected to a protrusion on the cover body through a second spring.

[0014] Furthermore, the cutting assembly includes a lifting column fixed at the bottom of the mounting rod, the bottom of the lifting column passes through the cover body and extends into a U-shaped tube inside the cover body, the U-shaped tube is filled with oil, one end of the oil body is connected to a third cutting knife through a cross beam away from the lifting column, and a cutting cavity is formed between the third cutting knife and the second cutting knife.

[0015] Furthermore, the crossbeam is connected with a guide groove along the length direction of the inner wall of the cover body, and sealing rings placed on the lifting column and the crossbeam are installed on both sides of the outer wall of the U-shaped tube.

[0016] Furthermore, one end of the conveyor line is connected to a support plate via an inclined plate, one end of the support plate is fixed to a side plate, and a resistance rod is connected to the inclined plate via a rotation adjustment component, and a limited position cavity is formed between the resistance rods.

[0017] Furthermore, the rotation adjustment component includes a shell fixed at one end of the inclined plate, the inner wall of the shell is movably connected with a rotating tooth, the top of the central axis on the rotating tooth passes through the shell and extends to the resistance rod, and the edge of the outer wall of the central axis is provided with a torsion spring fixed on the inner wall of the shell, the outer wall of the rotating tooth is meshed with a gear plate, the extension of one end of the gear plate is connected to a slide plate through a movable frame, and the gear plate is connected with a strip groove along the length direction of the shell.

[0018] Furthermore, a positioning hole is provided at the connection between the shell and the inclined plate and is locked and fixed by a bolt assembly, and the slide plate is connected to a guide rail that matches the support plate along the length direction of the support plate.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0020] (1) A first cutting mechanism is provided. After the first cylinder is started, it can drive the first cutting knife on the movable plate to cut the sides of the two ends of the packaging box. In addition, a telescopic rod is provided during the movement of the first cutting knife to ensure the accuracy of the cutting operation. At the same time, the telescopic rod can provide corresponding supporting force to the movable plate to prevent the first cylinder from being overloaded, thereby ensuring the stable operation of the device.

[0021] (2) A film pressing mechanism is provided. The film pressing mechanism is provided at both ends of the first cutting mechanism. This can play a role in positional guidance and correction during the conveying process, and can ensure the working accuracy of the first cutting mechanism and the second cutting mechanism. When the packaging box is in the conveying process, the top of the packaging box is in contact with the first pressing roller. The first pressing roller moves upward under the elastic adjustment of the first spring, and plays a role in pressing and adjusting the top of the packaging box. At the same time, when the first pressing roller moves upward, due to the rotation connection of the swing rod, the swing rod can drive the second slider to move toward the center, and play a role in centering and limiting, thereby guiding and limiting the two ends of the outer wall of the packaging box. In addition, the setting of the horizontal slide groove and the vertical slide groove on the L-shaped bending plate can avoid the position deviation of the transmission parts during movement, and the degree of automation is high and the adjustment performance is strong.

[0022] (3) A second cutting mechanism is provided. The second cutting mechanism is mainly used to perform centering cutting on the center of the packaging box, thereby dividing a plurality of packaging boxes connected together. When the second cylinder is started, it can drive the second cutting knife to move downward for cutting. At the same time, when the piston rod of the second cylinder moves downward, it can drive the clamping assembly and the cutting assembly to work synchronously. The clamping assembly uses the first inclined surface on the fixed block to contact and fit with the second inclined surface on the movable plate, so that the movable plate drives the clamping plate to center and clamp. When the cutting assembly moves downward using the mounting rod, the oil inside the U-tube is compressed and the pressure increases, thereby pushing the third cutting knife on the beam to move horizontally. In this way, the second cutting knife in the vertical direction cooperates with the third cutting knife in the horizontal direction to speed up the cutting speed, improve work efficiency, and prevent shaking during the cutting process.

[0023] (4) A rotation adjustment component is provided. After the cutting operation of the packaging box is completed, when the packaging box slides from the inclined plate to the support plate by its own gravity, the packaging box contacts the resistance rod during the sliding process. The resistance rod can play a role of buffering and adjusting the sliding packaging box, thereby preventing the side plate from being subjected to excessive impact force. In addition, the resistance rod can drive the rotation of the central axis during the rotation process. Under the transmission action of the gear meshing, the moving frame can drive the slide plate to push the packaging box to the collection box. In addition, a torsion spring is provided on the central axis. Under the elastic recovery action, the resistance rod and the slide plate can return to their original positions and wait for the next process. There is no need to set up an additional power source. The design is energy-saving and environmentally friendly, and reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 The structure diagram of the sub-packaging conveying mechanism of the transparent film three-dimensional packaging machine of the present invention is shown in FIG. Figure 1 ;

[0026] Figure 2 The structure diagram of the sub-packaging conveying mechanism of the transparent film three-dimensional packaging machine of the present invention is shown in FIG. Figure 2 ;

[0027] Figure 3 It is a front view of a sub-packaging conveying mechanism of a transparent film three-dimensional packaging machine of the present invention;

[0028] Figure 4 The present invention Figure 1 A magnified image of point A;

[0029] Figure 5 The present invention Figure 2 The enlarged view of point B;

[0030] Figure 6 The present invention Figure 1 Enlarged view of point C;

[0031] Figure 7 is a schematic diagram of the interior of the cover body of the present invention;

[0032] Figure 8 It is a schematic diagram of the meshing transmission between the center rotating tooth and the gear plate of the present invention.

[0033] Figure numerals: 1, conveyor line; 2, first cutting mechanism; 3, first panel; 4, first cylinder; 5, moving plate; 6, first cutting knife; 7, telescopic rod; 8, film pressing mechanism; 9, L-shaped bending plate; 10, horizontal slide; 11, vertical slide; 12, first spring; 13, first slider; 14, first pressure roller; 15, second slider; 16, swing rod; 17, second pressure roller; 18, second cutting mechanism; 19, second panel; 20, second cylinder; 21, second cutting knife; 22, installation Mounting rod; 23. Clamping assembly; 24. Cutting assembly; 25. Fixed block; 26. First inclined surface; 27. Pushing block; 28. Movable plate; 29. ​​Second inclined surface; 30. Clamping plate; 31. Second spring; 32. Cover body; 33. Lifting column; 34. U-shaped tube; 35. Oil body; 36. Third cutting knife; 37. Inclined plate; 38. Support plate; 39. Rotation adjustment assembly; 40. Resistance rod; 41. Rotating gear; 42. Central axis; 43. Torsion spring; 44. Gear plate; 45. Slide plate. DETAILED DESCRIPTION

[0034] 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.

[0035] Reference Manual Attached Figure 1 and attached Figure 2 As shown, a sub-packaging conveying mechanism of a transparent film three-dimensional packaging machine comprises: a conveying line 1, which is installed on a frame and extends along a preset direction to carry and convey packaging boxes;

[0036] The first cutting mechanism 2 includes a first panel 3 fixed on the frame, a first cylinder 4 is installed on the top of the first panel 3, a piston rod at the bottom of the first cylinder 4 passes through the first panel 3 and extends to the movable plate 5, first cutting knives 6 are connected to both sides of the bottom end of the movable plate 5, and the top of the movable plate 5 and the first panel 3 are connected by a telescopic rod 7.

[0037] A first cutting mechanism 2 is provided. After the first cylinder 4 is started, it can drive the first cutting knife 6 on the movable plate 5 to cut the sides of the two ends of the packaging box. In addition, the first cutting knife 6 is provided with a telescopic rod 7 during the movement process to ensure the accuracy of the cutting operation. At the same time, the telescopic rod 7 can give corresponding supporting force to the movable plate 5 to prevent the first cylinder 4 from being overloaded, thereby ensuring the stable operation of the device.

[0038] Specifically, the working principle of the conveyor line 1 is as follows: a transmission roller connected to a driving motor is provided on the conveyor line 1, and the transmission rollers are connected by a chain sprocket assembly, so that the transmission rollers can rotate synchronously, thereby being able to transmit and connect the carrying plate on the packaging box. The transmission of the chain sprocket assembly is a conventional technical means for technical personnel in this field, so it is not drawn in the drawings of the specification, but it does not affect the effective implementation of the technical solution of the present invention.

[0039] The first cutting blade 6, the second cutting blade 21 and the third cutting blade 36 all have corresponding tip surfaces, so that due to the small force-bearing area, the purpose of rapid cutting can be effectively achieved, thereby improving work efficiency.

[0040] refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 , a film pressing mechanism 8, the film pressing mechanism 8 is placed on both sides of the first cutting mechanism 2, and the film pressing mechanism 8 includes an L-shaped bending plate 9 placed on both sides of the top of the frame, the L-shaped bending plate 9 is correspondingly connected with a horizontal slide groove 10 and a vertical slide groove 11 in the horizontal direction and the height direction, the bottom end of the inner wall of the vertical slide groove 11 is connected with a first slider 13 through a first spring 12, the first sliders 13 are connected through a first pressing roller 14, and the outer wall edge of the first pressing roller 14 is provided with a rolling groove connected to the first slider 13;

[0041] Among them, the first slider 13 and the second slider 15 on the transverse slide groove 10 are connected by a swing rod 16, and both sides of the swing rod 16 are installed on the first slider 13 and the second slider 15 by a rotational connection. One end of the second slider 15 is movably connected to the second pressure roller 17 through a bracket.

[0042] A film pressing mechanism 8 is provided, and film pressing mechanisms 8 are provided at both ends of the front and rear of the first cutting mechanism 2, so that the film pressing mechanism 8 can play a role of position guidance and correction during the conveying process, and the working accuracy of the first cutting mechanism 2 and the second cutting mechanism 18 can be ensured. When the packaging box is in the conveying process, the top of the packaging box is in contact with the first pressing roller 14, and the first pressing roller 14 moves upward under the elastic adjustment of the first spring 12, and plays a role of pressing and adjusting the top of the packaging box. At the same time, when the first pressing roller 14 moves upward, due to the rotation connection of the swing rod 16, the swing rod 16 can drive the second slider 15 to move close to the center, and play a role of centering and limiting, thereby guiding and limiting the two ends of the outer wall of the packaging box, and the arrangement of the horizontal slide groove 10 and the vertical slide groove 11 on the L-shaped bending plate 9 can avoid the situation where the transmission part deviates from the position when moving, and the degree of automation is high and the adjustment performance is strong.

[0043] Specifically, the shape of the L-shaped bending plate 9 is mainly set to provide activity space for the horizontal slide groove 10 and the vertical slide groove 11, so as to ensure the normal movement of the first slider 13 and the second slider 15. When the first slider 13 moves up and down, in conjunction with the rotation connection of the swing rod 16, the second slider 15 can drive the second pressure roller 17 to achieve centering clamping and guiding work. The first pressure roller 14 cooperates with the second pressure roller 17 to achieve multi-directional guiding and pressing work on the two ends and the top of the packaging box, thereby improving the flatness of the packaging box during transportation.

[0044] In addition, by extension, a compression spring can be provided between one end of the second slider 15 and the L-shaped bending plate 9. In this way, when encountering a packaging box with a larger volume and a smaller height, the second pressure roller 17 is pushed outward and moves toward the compression spring. At this time, under the rotation connection of the swing rod 16, the first pressure roller 14 can be pulled downward, thereby realizing the pressing work on the top of the packaging box through the first pressure roller 14.

[0045] refer to Figure 1 , Figure 6 and Figure 7 A subpackaging and conveying mechanism of a transparent film three-dimensional packaging machine also includes a second cutting mechanism 18, which includes a second panel 19 placed on a frame, and a second cylinder 20 is fixedly installed on the second panel 19. The piston rod on the second cylinder 20 penetrates the second panel 19 and extends to the second cutting knife 21, and the piston rod on the second cylinder 20 is connected to a clamping assembly 23 and a cutting assembly 24 at the upper and lower ends through a mounting rod 22.

[0046] The clamping assembly 23 includes a fixed block 25 fixed on both sides of the mounting rod 22, a first inclined surface 26 is provided on one side of the bottom surface of the fixed block 25, a movable plate 28 fixed on the pushing block 27 is provided directly below the fixed block 25, a second inclined surface 29 is provided on the movable plate 28 to abut against the first inclined surface 26, one end of the pushing block 27 is connected to a clamping plate 30 symmetrical with the center of the frame, and one side of the extended section of the pushing block 27 is connected to the protrusion on the cover body 32 through a second spring 31.

[0047] A second cutting mechanism 18 is provided, and the second cutting mechanism 18 is mainly used to perform centering cutting work on the center of the packaging box, so as to segment a plurality of packaging boxes connected together. When the second cylinder 20 is started, it can drive the second cutting knife 21 to move downward for cutting. At the same time, when the piston rod of the second cylinder 20 moves downward, it can drive the clamping assembly 23 and the cutting assembly 24 to work synchronously. The clamping assembly 23 utilizes the first inclined surface 26 on the fixed block 25 to contact and fit with the second inclined surface 29 on the movable plate 28, so that the movable plate 28 drives the clamping plate 30 to clamp in the center. When the cutting assembly 24 moves downward using the mounting rod 22, the oil body 35 inside the U-shaped tube 34 is compressed, and the pressure becomes larger, thereby pushing the third cutting knife 36 on the crossbeam to move horizontally. In this way, the second cutting knife 21 in the vertical direction cooperates with the third cutting knife 36 in the horizontal direction, which can speed up the cutting speed, improve the working efficiency, and prevent shaking during the cutting process.

[0048] During the downward movement of the piston rod on the second cylinder 20, the mounting rod 22 can be driven to move downward synchronously. At this time, during the downward movement of the fixed block 25 on the mounting rod 22, due to the abutment and fit with the second inclined surface 29 on the movable plate 28, the movable plate 28 can move in the center. In this way, the clamping plates 30 at both ends can simultaneously realize the centering and clamping work on the outer wall of the packaging box around to ensure the stability of the cutting operation. In addition, the second spring 31 arranged between the push block 27 and the cover body 32 is conducive to returning the clamping plate 30 to its original position through the elastic recovery effect of the elasticity.

[0049] Specifically, the cutting assembly 24 includes a lifting column 33 fixed at the bottom of the mounting rod 22, the bottom of the lifting column 33 passes through the cover body 32 and extends into a U-shaped tube 34 inside the cover body 32, the U-shaped tube 34 is filled with an oil body 35, one end of the oil body 35 is connected to a third cutting knife 36 through a cross beam away from the lifting column 33, a cutting cavity is formed between the third cutting knife 36 and the second cutting knife 21, the cross beam is connected with a guide groove along the length direction of the inner wall of the cover body 32, and sealing rings placed on the lifting column 33 and the cross beam are installed on both sides of the outer wall of the U-shaped tube 34.

[0050] When the lifting column 33 on the U-shaped tube 34 moves downward, the oil body 35 is compressed, and the pressure in the U-shaped cavity increases. The pressure pushes the crossbeam to drive the third cutting knife 36 to achieve centering cutting, and cooperates with the second cutting knife 21 to effectively improve the work efficiency. When the lifting column 33 moves upward, the oil body 35 moves downward due to gravity, the oil body 35 is released, and the pressure in the U-shaped cavity decreases, so that the crossbeam drives the third cutting knife 36 to return to its original position. At the same time, the sealing rings on the lifting column 33 and the crossbeam can ensure the sealing of the U-shaped cavity, effectively preventing the oil body 35 from leaking out, and the setting of the oil body 35 can lubricate the transmission parts, reduce friction damage, and increase the service life of the device.

[0051] refer to Figure 2 and Figure 8 One end of the conveyor line 1 is connected to a support plate 38 through an inclined plate 37, one end of the support plate 38 is fixed to the side plate, and a resistance rod 40 is connected to the inclined plate 37 through a rotation adjustment component 39, and a limited position cavity is formed between the resistance rods 40.

[0052] The rotation adjustment component 39 includes a shell fixed at one end of the inclined plate 37, and a rotating tooth 41 is movably connected to the inner wall of the shell. The top of the central axis 42 on the rotating tooth 41 passes through the shell and extends to the abutment rod 40, and the outer wall edge of the central axis 42 is provided with a torsion spring 43 fixed to the inner wall of the shell. The outer wall of the rotating tooth 41 is meshed with a gear plate 44, and a slide plate 45 is connected to the extension of one end of the gear plate 44 through a movable frame, and the gear plate 44 is connected with a strip groove along the length direction of the shell. A positioning hole is opened at the connection between the shell and the inclined plate 37 and is locked and fixed by a bolt assembly, and the slide plate 45 is connected with a guide track matching the support plate 38 along the length direction.

[0053] A rotation adjustment component 39 is provided. After the cutting operation of the packaging box is completed, when the packaging box slides from the inclined plate 37 to the support plate 38 by its own gravity, since the packaging box contacts the resistance rod 40 during the sliding process, the resistance rod 40 can play a role of buffering and adjusting the sliding packaging box, thereby preventing excessive impact force on the side plate. In addition, the resistance rod 40 can drive the rotation of the central shaft 42 during the rotation process. Under the transmission action of the gear meshing, the moving frame can drive the slide plate 45 to push the packaging box to the collection box. In addition, a torsion spring 43 is provided on the central shaft 42. Under the elastic recovery action, the resistance rod 40 and the slide plate 45 can return to their original positions and wait for the next process. There is no need to set up an additional power source. The design is energy-saving and environmentally friendly, and reasonable.

[0054] The movable frame itself is tilted, so that the tilted transmission force can be converted into a horizontal transmission force, so that the slide plate 45 can effectively push the packaging box. In addition, compared with directly setting a spring buffer on the side panel, although it can also play a role in buffering and adjustment, it is easy to deviate from the position during the buffering process, and the effect is relatively simple. Compared with the linkage effect of the rotating adjustment component 39, it can not only play a role in buffering and adjusting the sliding packaging box, but also can convert the impact force of the sliding into a horizontal force, so that the packaging box is pushed to the corresponding collection box.

[0055] Specifically, baffles can be removably installed on both sides of the inclined plate 37 , which can facilitate installation and disassembly work, and can also play a protective limit role for the packaging box that slides down, thereby increasing the safety of the device and allowing the packaging box to slide smoothly onto the support plate 38 .

[0056] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0057] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A sub-packaging conveying mechanism of a transparent film three-dimensional packaging machine, characterized in that: include: A conveyor line (1), the conveyor line (1) being mounted on a frame and extending in a preset direction, for carrying and conveying packaging boxes; A first cutting mechanism (2), the first cutting mechanism (2) comprising a first panel (3) fixed on a frame, a first cylinder (4) being installed at the top of the first panel (3), a piston rod at the bottom of the first cylinder (4) passing through the first panel (3) and extending to a movable plate (5), first cutting knives (6) being connected to both sides of the bottom of the movable plate (5), and a top of the movable plate (5) and the first panel (3) being connected via a telescopic rod (7); A film pressing mechanism (8), the film pressing mechanism (8) is placed on both sides of the first cutting mechanism (2), and the film pressing mechanism (8) includes L-shaped bending plates (9) placed on both sides of the top of the frame, the L-shaped bending plates (9) are correspondingly connected with a transverse slide groove (10) and a vertical slide groove (11) in the horizontal direction and the height direction, the bottom end of the inner wall of the vertical slide groove (11) is connected with a first slider (13) through a first spring (12), the first sliders (13) are connected with each other through a first pressing roller (14), and the outer wall edge of the first pressing roller (14) is provided with a rolling groove connected with the first slider (13); The first slider (13) and the second slider (15) on the transverse slide groove (10) are connected via a swing rod (16), both sides of the swing rod (16) are mounted on the first slider (13) and the second slider (15) via a rotational connection, and one end of the second slider (15) is movably connected to a second pressure roller (17) via a bracket.

2. The sub-packaging conveying mechanism of the transparent film three-dimensional packaging machine according to claim 1, characterized in that: The invention also comprises a second cutting mechanism (18), wherein the second cutting mechanism (18) comprises a second panel (19) placed on the frame, a second cylinder (20) is fixedly mounted on the second panel (19), a piston rod on the second cylinder (20) passes through the second panel (19) and extends to the second cutting knife (21), and the piston rod on the second cylinder (20) is respectively connected to a clamping assembly (23) and a cutting assembly (24) at the upper and lower ends through a mounting rod (22).

3. The sub-packaging conveying mechanism of the transparent film three-dimensional packaging machine according to claim 2, characterized in that: The clamping assembly (23) comprises a fixed block (25) fixed on both sides of the mounting rod (22); a first inclined surface (26) is provided on one side of the bottom surface of the fixed block (25); a movable plate (28) mounted on a pushing block (27) is provided directly below the fixed block (25); a second inclined surface (29) is provided on the movable plate (28) and contacts with the first inclined surface (26); one end of the pushing block (27) is connected to a clamping plate (30) symmetrical with the center of the frame; and one side of the extension section of the pushing block (27) is connected to a protrusion on the cover body (32) via a second spring (31).

4. The sub-packaging conveying mechanism of the transparent film three-dimensional packaging machine according to claim 2, characterized in that: The cutting assembly (24) comprises a lifting column (33) fixed at the bottom of the mounting rod (22); the bottom of the lifting column (33) penetrates the cover body (32) and extends into a U-shaped tube (34) inside the cover body (32); the U-shaped tube (34) is filled with oil (35); one end of the oil body (35) is connected to a third cutting knife (36) via a cross beam at a side away from the lifting column (33); a cutting cavity is formed between the third cutting knife (36) and the second cutting knife (21).

5. The sub-packaging conveying mechanism of the transparent film three-dimensional packaging machine according to claim 4, characterized in that: The cross beam is connected with a guide groove along the length direction of the inner wall of the cover body (32), and sealing rings placed on the lifting column (33) and the cross beam are installed on both sides of the outer wall of the U-shaped tube (34).

6. The sub-packaging conveying mechanism of the transparent film three-dimensional packaging machine according to claim 1, characterized in that: One end of the conveying line (1) is connected to a support plate (38) via an inclined plate (37), one end of the support plate (38) is fixed to a side plate, and a resisting rod (40) is connected to the inclined plate (37) via a rotation adjustment component (39), and a limited position cavity is formed between the resisting rods (40).

7. The sub-packaging conveying mechanism of the transparent film three-dimensional packaging machine according to claim 6, characterized in that: The rotation adjustment component (39) comprises a shell fixed on one end of the inclined plate (37), the inner wall of the shell is movably connected with a rotating tooth (41), the top of the central axis (42) on the rotating tooth (41) passes through the shell and extends to the abutment rod (40), and the outer wall edge of the central axis (42) is provided with a torsion spring (43) fixed on the inner wall of the shell, the outer wall of the rotating tooth (41) is meshed with a gear plate (44), one end of the gear plate (44) is connected to a slide plate (45) through a movable frame, and the gear plate (44) is connected with a strip groove along the length direction of the shell.

8. The sub-packaging conveying mechanism of the transparent film three-dimensional packaging machine according to claim 7, characterized in that: A positioning hole is provided at the connection between the shell and the inclined plate (37) and is locked and fixed by a bolt assembly, and the slide plate (45) is connected to a guide track that matches the support plate (38) along the length direction thereof.

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