K-shaped forming device of packaging machine

Abstract

The invention relates to a packaging machine K-shaped forming device which comprises a rack and a lower forming structure arranged on the rack and located on one side of an overturning suction device, the lower forming structure is provided with an extrusion device for oppositely extruding paper sheets, and the upper end of the rack is further provided with a first mounting frame for mounting a first driving air cylinder and a second driving air cylinder. An upper forming structure and an edge pressing structure are installed at the bottom of the first driving air cylinder and the bottom of the second driving air cylinder in a linkage mode correspondingly, and the lower forming structure is arranged in a reciprocating motion mode in the direction of the upper forming structure. And then the first driving air cylinder drives the upper forming structure to press downwards and the lower forming structure to extrude the paper into a K shape, in the downward pressing process of the upper forming structure, an extrusion device of the lower forming structure acts at the same time, the paper is axially extruded, and the situation that the paper is damaged due to tension of the paper in the downward pressing process of the upper forming structure is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging machine equipment, and particularly relates to a K-shaped forming device for a packaging machine. Background Art

[0002] The K-shaped forming device of a packaging machine is a key component of a K-type all-paper packaging machine, which is used to accurately form paper sheets into a "K" shape. It usually includes complex mechanical structures, such as a movable lower forming mechanism and an upper forming structure, equipped with components such as an extrusion device and a driving cylinder. Through the coordinated operation of each component, the extrusion, folding, and shaping of the paper sheets are realized, ensuring that the initial shape of the packaging meets the requirements, laying a foundation for subsequent processes such as dot ironing, heat sealing, and adsorption material taking. The accuracy and reliability of its design directly affect the quality and production efficiency of the final packaging product.

[0003] The publication number is: CN110370722B discloses a carton forming mechanism, including a frame, a first folding device, and a second folding device. It is characterized in that the first folding device includes a first lower die, a first upper die, and an upper paper folding member. The upper paper folding member includes an upper folding cardboard, and the upper folding cardboard and the first upper die are installed on a first upper die base that moves up and down. The first lower die has a slot for the upper folding cardboard to insert. The second folding device includes a second lower die, a lower paper folding member that moves up and down, and a second upper die. The lower paper folding member includes a lower folding cardboard, and the second lower die has a wire groove for the lower folding cardboard to move up and down. The second upper die is installed on a second upper die base that moves up and down. The present invention uses the first folding device and the second folding device to fold the cardboard into a box body with a receiving cavity, realizing the automatic forming of the packaging box.

[0004] The publication number is: CN217198881U discloses a carton forming mechanism, a K-type carton forming die, including a template. The template is provided with a forming groove. One side of the forming groove in the length direction is open as a feeding port. The forming groove is provided with a paper supporting convex block. The paper supporting convex block is longitudinally arranged, and the cross-section of the paper supporting convex block is trapezoidal or triangular. The paper supporting convex block has a gap between the groove wall of the forming groove and the feeding port in the length direction. The paper supporting convex block is provided with a material groove. The material groove is horizontally arranged and communicates with the forming groove. The depth of the forming groove and the height of the paper supporting convex block both match the thickness of the material. It is applied to an automated production line to realize full-automatic packaging. This technology and the above-mentioned carton forming mechanism can form a K-shaped forming device for a packaging machine. However, when the K-shaped packaging box is pressed and shaped, the paper card is prone to shift, resulting in a deviation in the shape of the produced packaging box. At the same time, due to the particularity of the "K" shape, the two ends of the paper card will be subjected to pressure during the pressing and shaping process. Due to the tension existing in the paper card itself, the pressure during the pressing process will cause the two ends of the paper card to be damaged, affecting the production of the K-shaped packaging box. Therefore, there is still room for improvement in this technology. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a K-shaped forming device for a packaging machine in view of the deficiencies of the above-mentioned prior art.

[0006] To achieve the above object, the present invention provides the following technical solution. A K-shaped forming device for a packaging machine includes a frame. The frame is provided with a paper sheet placing box and a flipping suction device for sucking the paper sheet. A lower forming structure is provided on one side of the frame where the flipping suction device is located. It is characterized in that: the lower forming structure is provided with a pressing device for pressing the paper sheet towards each other. The upper end of the frame is also provided with a first mounting bracket for installing a first driving cylinder and a second driving cylinder. The bottoms of the first driving cylinder and the second driving cylinder are respectively linked and installed with an upper forming structure and a pressing edge structure. The lower forming structure is provided with a sliding structure to make the lower forming structure reciprocate towards the upper forming structure.

[0007] Adopting the above technical solution, through the flipping suction device (prior art, specifically, the flipping mechanism described in the invention patent with the patent number: CN213733642U applied by the applicant), the paper sheet in the paper sheet placing box (prior art, specifically, the paper sheet placing box 5 described in the invention patent with the patent number: CN213733642U applied by the applicant) is sucked and placed on the lower forming structure. The lower forming structure moves to the upper forming structure. The pressing edge mechanism first presses and fixes the paper sheet at the a1 position of the paper sheet as shown in Figure 4 the figure, and then drives the upper forming structure to press down by the first driving cylinder to squeeze the paper sheet into a K shape with the lower forming structure. During the process of the upper forming structure pressing down, the pressing device of the lower forming structure acts simultaneously to axially press the paper sheet, avoiding the breakage of the paper sheet caused by the tension of the paper sheet during the pressing process of the upper forming structure.

[0008] The above-mentioned K-shaped forming device for a packaging machine can be further set as: the sliding structure includes an axially driving rod arranged at the upper end of the frame. A first driving member is arranged on one side of the axially driving rod. The frame is provided with sliding tracks on both sides of the axially driving rod. The sliding tracks are slidably provided with sliding blocks. The lower forming structure includes a lower mounting plate arranged along the axially driving rod. The lower mounting plate is fixedly connected with the sliding blocks. The first driving member can drive the lower mounting plate to reciprocate. The lower mounting plate is provided with a plurality of first storage blocks and second storage blocks. The first storage blocks and the second storage blocks are arranged opposite to each other. A lower forming block is arranged between the first storage blocks and the second storage blocks. The pressing device can make the first storage blocks and the second storage blocks press towards the lower forming block.

[0009] With the above technical solution, the lower mounting plate is driven by the axial drive rod and the first drive member to move to the upper forming structure. The lower mounting plate is provided with a first storage block and a second storage block. The first storage block and the second storage block are arranged oppositely to form a space for storing paper sheets. The lower forming block arranged between the first storage block and the second storage block can cooperate with the downward pressure of the upper forming structure to Figure 4 bend the a2, a3, and a4 positions of the paper sheet shown in the figure to form a K-shaped lower contour, ensuring stable forming quality. The extrusion device can prompt the first storage block and the second storage block to extrude towards the lower forming block to avoid damage to the paper sheet caused by the tension of the paper sheet.

[0010] The above-mentioned K-shaped forming device of a packaging machine can be further set as follows: The extrusion device includes a moving slide rail arranged on the top of the lower mounting plate. The first storage block and the second storage block are slidably connected to the moving slider. The mounting plate is provided with extrusion driving cylinders at both ends of the moving slide rail. The extrusion driving cylinders are connected to the first storage block and the second storage block to enable the extrusion driving cylinders to drive the first storage block and the second storage block to move towards the lower forming block.

[0011] With the above technical solution, the extrusion driving cylinders arranged at both ends of the moving slide rail drive the first storage block and the second storage block to move towards the lower forming block. While the upper forming structure presses down, the extrusion driving cylinders drive the first storage block and the second storage block to perform extrusion, avoiding damage to the paper sheet caused by the tension of the paper sheet.

[0012] The above-mentioned K-shaped forming device of a packaging machine can be further set as follows: The upper forming structure includes a moving truss fixedly arranged on the top of the first mounting frame. The moving truss extends towards the conveying station. The moving truss is connected with a moving mounting plate that can reciprocate. A connecting plate is arranged at the bottom of the moving mounting plate. The first driving cylinder is arranged between the connecting plate and the moving mounting plate. The first driving cylinder passes through the connecting plate and is provided with an upper forming block at the bottom of the connecting plate to enable the first driving cylinder to drive the upper forming block to reciprocate vertically.

[0013] With the above technical solution, a moving truss is arranged on the top of the first mounting frame for the moving mounting plate to axially reciprocate. A third driving cylinder capable of driving the moving mounting plate is arranged at the end of the moving truss. A connecting plate is arranged at the bottom of the moving mounting plate. The first driving cylinder can be arranged on the top of the connecting plate. At the same time, the first driving cylinder passes through the connecting plate and is provided with an upper forming block that can reciprocate vertically at the bottom of the connecting plate. The upper forming block includes a K-shaped block and a forming block base. The first driving cylinder drives the K-shaped block to reciprocate vertically through the forming block base. The K-shaped block presses down to cooperate with the lower forming block to Figure 4 bend the a2, a3, and a4 positions of the paper sheet shown in the figure to form a K-shaped upper contour.

[0014] The above-mentioned forming device of the packaging machine K can be further set as follows: The edge pressing structure includes a forming block base and a third installation groove opened at the end of the K-shaped block. The second driving cylinder is arranged on the top of the moving installation plate. A first edge pressing plate is arranged in the third installation groove. The second driving cylinder passes through the moving installation plate and the connecting plate and is connected to the first edge pressing plate to enable the second driving cylinder to drive the edge pressing plate to reciprocate vertically.

[0015] Adopting the above technical solution, third installation grooves for installing the first edge pressing plate are opened at the forming block base and the two ends of the K-shaped block. The first edge pressing plate presses the edge downward through the second driving cylinder arranged on the top of the moving installation plate. When the lower forming structure conveys the paper sheet over, first, the first edge pressing plate presses down to Figure 4 press the a1 part of the paper sheet shown in the figure to avoid displacement of the paper sheet during the downward pressing process of the upper forming structure, resulting in position deviation of the paper sheet extrusion forming, and ensuring the stability of the equipment.

[0016] The above-mentioned forming device of the packaging machine K can be further set as follows: The upper forming block includes a forming block base connected to the cylinder and a K-shaped block arranged at the bottom of the forming block base. An L-shaped pressing plate is arranged on one side of the forming block base.

[0017] Adopting the above technical solution, the L-shaped pressing plate arranged on one side of the forming block base can flatten the b1 surface of the paper sheet as shown in Figure 4 the figure to ensure the subsequent work.

[0018] The above-mentioned forming device of the packaging machine K can be further set as follows: A first installation groove is formed between the L-shaped pressing plate and the forming block base. A plurality of second installation grooves are opened on the side of the forming block base away from the L-shaped pressing plate. First suction cups are arranged in the first installation groove and the second installation grooves.

[0019] Adopting the above technical solution, the first suction cups arranged in the first installation groove and the second installation grooves adsorb the paper sheet after being formed by the downward pressing of the K-shaped block and are conveyed to the conveying station of the production equipment through the moving truss and then conveyed to the next process.

[0020] The above-mentioned forming device of the packaging machine K can be further set as follows: The first driving member includes a fourth installation groove opened on the frame. A driving motor is arranged at the bottom of the frame at the third installation groove. The driving motor is provided with a driving wheel. The end of the axial driving rod is provided with a driven wheel. The driving wheel and the driven wheel are connected by a synchronous belt.

[0021] With the above technical solution, the driving wheel and the driven wheel are connected by a synchronous belt, ensuring smooth and precise transmission. It can accurately control the reciprocating movement of the axial driving rod, ensuring the stable operation of the lower forming mechanism, improving the operating efficiency of the equipment, reducing vibration and noise, extending the service life of components, and ensuring the accuracy and consistency of the actions of the K-shaped forming device.

[0022] Advantages of the present invention: The edge pressing mechanism first presses and fixes the paper at the a1 position of the paper as shown in Figure 4 the figure, and then drives the upper forming structure to press down by the first driving cylinder and extrudes the paper into a K shape with the lower forming structure. During the downward pressing process of the upper forming structure, the extrusion device of the lower forming structure acts simultaneously to axially extrude the paper, avoiding damage to the paper caused by the tension of the paper during the downward pressing process of the upper forming structure. Description of the Drawings

[0023] Figure 1 is the structural diagram of the present invention; Figure 2 is the schematic structural diagram of the lower forming of the present invention; Figure 3 is the schematic structural diagram of the upper forming of the present invention; Figure 4 is the schematic structural diagram of the paper of the present invention; Figure 5 is the schematic structural diagram of the first driving member of the present invention; Label annotations: 1 - frame, 2 - paper placement box, 3 - flipping and sucking device, 4 - first driving cylinder, 5 - second driving cylinder, 6 - first mounting bracket, 7 - axial driving rod, 8 - first driving member, 9 - lower mounting plate, 10 - first storage block, 11 - second storage block, 12 - lower forming block, 13 - moving slide rail, 14 - extrusion driving cylinder, 15 - moving truss, 16 - moving mounting plate, 17 - connecting plate, 18 - upper forming block, 19 - forming block base, 20 - K-shaped block, 21 - L-shaped pressing plate, 22 - third installation groove, 23 - first edge pressing plate, 24 - first installation groove, 25 - second installation groove, 26 - first suction cup, 27 - fourth installation groove, 28 - driving motor, 29 - driving wheel, 30 - driven wheel, 31 - synchronous belt, 32 - sliding track, 33 - sliding block. Detailed Embodiments

[0024] This specific embodiment is only an interpretation of the present invention and is not a limitation thereof. Those skilled in the art can make modifications to this embodiment without creative contributions according to their needs after reading this specification, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0025] Usage process of the K-type all-paper packaging machine: First, the paper sheets in the paper sheet placement box 2 (prior art, specifically refer to the paper sheet placement box 25 described in the invention patent with the patent number: CN213733642U applied by the applicant) are sucked by the flipping and adsorption device (prior art, specifically refer to the flipping mechanism described in the invention patent with the patent number: CN213733642U applied by the applicant) and placed on the first storage block 10 and the second storage block 11. The lower forming block 12 arranged between the first storage block 10 and the second storage block 11 can form the lower contour of the K shape by the downward pressing cooperation of the upper forming structure at a2, a3, and a4 of the paper sheet as shown in Figure 4 . The first pressing edge plate 23 presses down the a1 of the paper sheet as shown in Figure 4 . The first driving cylinder 4 drives the K-shaped block 20 to move vertically back and forth through the forming block base 19. The K-shaped block 20 presses down to cooperate with the lower forming block 12 to form the upper contour of the K shape at a2, a3, and a4 of the paper sheet as shown in Figure 4 . The L-shaped pressing plate 21 arranged on one side of the forming block base 19 can flatten the b1 surface of the paper sheet as shown in Figure 4 . During the downward pressing process of the K-shaped block 20, the extrusion driving cylinders 14 arranged at both ends of the moving slide rail 13 drive the first storage block 10 and the second storage block 11 to move towards the lower forming block 12, avoiding the damage of the paper sheet caused by the tension of the paper sheet. After downward pressing and forming, the first suction discs 26 arranged in the first installation groove 24 and the second installation groove 25 adsorb the paper sheet after being formed by the downward pressing of the K-shaped block 20 and are conveyed to the conveying station of the production equipment through the moving truss 15 and conveyed to the next process.

[0026] As shown in Figures 1-4 , the present invention provides the following technical solution. A K-shaped forming device for a packaging machine includes a frame 1. The frame 1 is provided with a paper sheet placement box 2 and a flipping and sucking device 3 for sucking paper sheets. A lower forming structure is arranged on one side of the frame 1 where the flipping and sucking device 3 is located. The lower forming structure is provided with an extrusion device for squeezing the paper sheets towards each other. The upper end of the frame 1 is also provided with a first mounting frame 6 for installing the first driving cylinder 4 and the second driving cylinder 5. The bottoms of the first driving cylinder 4 and the second driving cylinder 5 are respectively linked and installed with an upper forming structure and a pressing edge structure. The lower forming structure is provided with a sliding structure to enable the lower forming structure to move reciprocally towards the upper forming structure. The paper sheets in the paper sheet placement box 2 (prior art, specifically refer to the paper sheet placement box 25 described in the invention patent with the patent number: CN213733642U applied by the applicant) are sucked by the flipping and adsorption device (prior art, specifically refer to the flipping mechanism described in the invention patent with the patent number: CN213733642U applied by the applicant) and placed on the lower forming structure. The lower forming structure moves to the upper forming structure. The pressing edge mechanism first presses the paper sheet as shown inFigure 4 At a1 of the paper sheet shown, edge pressing and fixing are carried out, and then the upper forming structure is driven by the first driving cylinder 4 to press down and extrude with the lower forming structure to extrude the paper sheet into a K shape. During the downward pressing process of the upper forming structure, the extrusion device of the lower forming structure acts simultaneously to axially extrude the paper sheet to avoid damage to the paper sheet caused by the tension of the paper sheet during the downward pressing process of the upper forming structure. The sliding structure includes an axial driving rod 7 arranged at the upper end of the frame. A first driving member 8 is arranged on one side of the axial driving rod 7. Sliding tracks 32 are arranged on both sides of the frame 1 where the axial driving rod 7 is located. A sliding block 33 is slidably arranged on the sliding track 32. The lower forming structure includes a lower mounting plate 9 arranged on the axial driving rod 7. The lower mounting plate 9 is fixedly connected to the sliding block 33. The first driving member 8 can drive the lower mounting plate 9 to reciprocate. The lower mounting plate 9 is provided with a plurality of first storage blocks 10 and second storage blocks 11. The first storage blocks 10 and the second storage blocks 11 are arranged oppositely. A lower forming block 12 is arranged between the first storage blocks 10 and the second storage blocks 11. The extrusion device can cause the first storage blocks 10 and the second storage blocks 11 to extrude towards the lower forming block 12. The lower mounting plate 9 is moved to the upper forming structure by driving through the axial driving rod 7 and the first driving member 8. The lower mounting plate 9 is provided with the first storage blocks 10 and the second storage blocks 11. The first storage blocks 10 and the second storage blocks 11 are arranged oppositely to form a space for storing the paper sheet. The lower forming block 12 arranged between the first storage blocks 10 and the second storage blocks 11 can cooperate with the downward pressing of the upper forming structure to form, for example Figure 4Bends are made at a2, a3, and a4 of the shown paper sheet to form a K-shaped lower contour, ensuring stable forming quality. The extrusion device can prompt the first storage block 10 and the second storage block 11 to be extruded towards the lower forming block 12, avoiding damage to the paper sheet caused by the tension of the paper sheet. The extrusion device includes a moving slide rail 13 arranged on the top of the lower mounting plate 9. The first storage block 10 and the second storage block 11 are slidably connected to the moving slider. The mounting plate is provided with extrusion driving cylinders 14 at both ends of the moving slide rail 13. The extrusion driving cylinders 14 are connected to the first storage block 10 and the second storage block 11 to enable the extrusion driving cylinders 14 to drive the first storage block 10 and the second storage block 11 to move towards the lower forming block 12. The extrusion driving cylinders 14 arranged at both ends of the moving slide rail 13 drive the first storage block 10 and the second storage block 11 to move towards the lower forming block 12. While the upper forming structure presses down, the extrusion driving cylinders 14 drive the first storage block 10 and the second storage block 11 to perform extrusion, avoiding damage to the paper sheet caused by the tension of the paper sheet. The upper forming structure includes a moving truss 15 fixedly arranged on the top of the first mounting frame 6. The moving truss 15 extends towards the conveying station direction. The moving truss 15 is connected with a moving mounting plate 16 that can reciprocate. A connecting plate 17 is arranged at the bottom of the moving mounting plate 16. The first driving cylinder 4 is arranged between the connecting plate 17 and the moving mounting plate 16. The first driving cylinder 4 passes through the connecting plate 17 and is provided with an upper forming block 18 at the bottom of the connecting plate 17 to enable the first driving cylinder 4 to drive the upper forming block 18 to reciprocate vertically. A moving truss 15 is arranged on the top of the first mounting frame 6 for the moving mounting plate 16 to axially reciprocate. A third driving cylinder capable of driving the moving mounting plate 16 is arranged at the end of the moving truss 15. A connecting plate 17 is arranged at the bottom of the moving mounting plate 16. The first driving cylinder 4 can be arranged on the top of the connecting plate 17. At the same time, the first driving cylinder 4 passes through the connecting plate 17 and is provided with an upper forming block 18 that can reciprocate vertically at the bottom of the connecting plate 17. The upper forming block 18 includes a K-shaped block 20 and a forming block base 19. The first driving cylinder 4 drives the K-shaped block 20 to reciprocate vertically through the forming block base 19. The K-shaped block 20 presses down to cooperate with the lower forming block 12, such as Figure 4Bends are made at a2, a3, and a4 of the paper sheet shown to form a K-shaped upper contour. The edge pressing structure includes a forming block base 19 and a third installation groove 22 opened at the end of the K-shaped block 20. The second driving cylinder 5 is arranged on the top of the movable mounting plate 16. A first edge pressing plate 23 is arranged in the third installation groove 22. The second driving cylinder 5 passes through the movable mounting plate 16 and the connecting plate 17 and is connected to the first edge pressing plate 23 to enable the second driving cylinder 5 to drive the edge pressing plate to reciprocate vertically. Third installation grooves 22 for installing the first edge pressing plate 23 are opened at the ends of both sides of the forming block base 19 and the K-shaped block 20. The first edge pressing plate 23 presses the edge downward through the second driving cylinder 5 arranged on the top of the movable mounting plate 16. When the lower forming structure conveys the paper sheet over, first, the first edge pressing plate 23 presses down to Figure 4 press the edge of the a1 position of the paper sheet shown, preventing the paper sheet from shifting during the downward pressing of the upper forming structure, resulting in position deviation of the paper sheet extrusion molding, and ensuring the stability of the equipment.

[0027] As Figures 1-4 shown, the present invention provides the following technical solution: A K-shaped forming device for a packaging machine. The upper forming block 18 includes a forming block base 19 connected to a cylinder and a K-shaped block 20 arranged at the bottom of the forming block base 19. An L-shaped pressing plate 21 is arranged on one side of the forming block base 19. The L-shaped pressing plate 21 arranged on one side of the forming block base 19 can flatten the b1 surface of the paper sheet shown as Figure 4 shown to ensure subsequent work. A first installation groove 24 is formed between the L-shaped pressing plate 21 and the forming block base 19. A plurality of second installation grooves 25 are opened on the side of the forming block base 19 away from the L-shaped pressing plate 21. First suction cups 26 are arranged in the first installation groove 24 and the second installation grooves 25. The first suction cups 26 arranged in the first installation groove 24 and the second installation grooves 25 adsorb the paper sheet after being formed by the downward pressing of the K-shaped block 20 and are conveyed to the conveying station of the production equipment through the movable truss 15 and fed to the next process. The first driving member 8 includes a fourth installation groove 27 opened on the frame 1. A driving motor 28 is arranged at the bottom of the frame 1 at the third installation groove 22. The driving motor 28 is provided with a driving wheel 29. A driven wheel 30 is arranged at the end of the axial driving rod 7. The driving wheel 29 and the driven wheel 30 are connected by a synchronous belt 31. The driving wheel 29 and the driven wheel 30 are connected by the synchronous belt 31, with stable and precise transmission, capable of accurately controlling the reciprocating movement of the axial driving rod 7, ensuring the stable operation of the lower forming mechanism, improving the operation efficiency of the equipment, reducing vibration and noise, extending the service life of components, and ensuring the accuracy and consistency of the actions of the K-shaped forming device.

[0028] The beneficial effects of the present invention: The edge pressing mechanism first presses the paper sheet as Figure 4Perform hemming and fixing at a1 of the paper sheet shown, and then drive the upper forming structure to press down by the first driving cylinder 4 to squeeze the paper sheet into a K shape with the lower forming structure. During the downward pressing process of the upper forming structure, the squeezing device of the lower forming structure acts simultaneously to axially squeeze the paper sheet, avoiding damage to the paper sheet caused by the tension of the paper sheet during the downward pressing process of the upper forming structure.

Claims

1. A K-shaped forming device for a packaging machine, comprising a frame, the frame being provided with a paper sheet placement box and a flipping and sucking device for sucking paper sheets, a lower forming structure being provided on the frame at one side of the flipping and sucking device, characterized in that: The lower forming structure is provided with an extrusion device for extruding paper sheets in opposite directions. The upper end of the frame is also provided with a first mounting frame for installing the first driving cylinder and the second driving cylinder. The bottom of the first driving cylinder and the second driving cylinder are respectively and linkedly installed with an upper forming structure and a pressing edge structure. The lower forming structure is provided with a sliding structure to prompt the lower forming structure to reciprocate toward the upper forming structure.

2. A K-shaped forming device for a packaging machine according to claim 1, characterized in that: The sliding structure includes an axial driving rod arranged at the upper end of the frame, a first driving member is provided on one side of the axial driving rod, the frame is provided with sliding rails on both sides of the axial driving rod, and the sliding rails are slidably provided with sliding blocks, and the lower forming structure includes a lower mounting plate arranged on the axial driving rod, the lower mounting plate is fixedly connected to the sliding block, the first driving member can drive the lower mounting plate to reciprocate, and the lower mounting plate is provided with a plurality of first storage blocks and second storage blocks, the first storage blocks and the second storage blocks are arranged opposite to each other, and a lower forming block is provided between the first storage block and the second storage block, and the extrusion device can cause the first storage block and the second storage block to be extruded toward the lower forming block.

3. A K-shaped forming device for a packaging machine according to claim 1, characterized in that: The extrusion device includes a movable slide rail arranged on the top of the lower mounting plate, the first storage block and the second storage block are slidably connected with the movable slider, and the lower mounting plate is provided with an extrusion driving cylinder at both ends of the movable slide rail, and the extrusion driving cylinder is connected to the first storage block and the second storage block so that the extrusion driving cylinder can drive the first storage block and the second storage block to move toward the lower forming block.

4. A K-shaped forming device for a packaging machine according to claim 1, characterized in that: The upper forming structure includes a movable truss fixedly arranged on the top of the first mounting frame, the movable truss extends toward the conveying station, the movable truss is connected to a movable mounting plate capable of reciprocating movement, a connecting plate is provided at the bottom of the movable mounting plate, the first driving cylinder is arranged between the connecting plate and the movable mounting plate, the first driving cylinder penetrates the connecting plate, and an upper forming block is provided at the bottom of the connecting plate, so that the first driving cylinder can drive the upper forming block to reciprocate vertically.

5. A K-shaped forming device for a packaging machine according to claim 1, characterized in that: The edge clamping structure includes a forming block base and a third mounting groove opened at the end of the K-shaped block. The second driving cylinder is arranged on the top of the movable mounting plate. The first edge clamping plate is arranged in the third mounting groove. The second driving cylinder passes through the movable mounting plate and the connecting plate is connected to the first edge clamping plate so that the second driving cylinder can drive the edge clamping plate to reciprocate vertically.

6. A K-shaped forming device for a packaging machine according to claim 4, characterized in that: The upper forming block comprises a forming block base connected to the cylinder and a K-shaped block arranged at the bottom of the forming block base, and an L-shaped pressing plate is arranged on one side of the forming block base.

7. A K-shaped forming device for a packaging machine according to claim 6, characterized in that: A first mounting groove is formed between the L-shaped pressing plate and the forming block base, and a plurality of second mounting grooves are formed on the side of the forming block base away from the L-shaped pressing plate. First adsorption plates are arranged in the first mounting groove and the second mounting groove.

8. A K-shaped forming device for a packaging machine according to claim 2, characterized in that: The first driving member includes a fourth mounting groove opened in the frame, the frame is provided with a driving motor at the bottom of the third mounting groove, the driving motor is provided with a driving wheel, the end of the axial driving rod is provided with a driven wheel, and the driving wheel and the driven wheel are connected by a synchronous belt.

Images