A bag making mechanism for water dispersible granule packaging machine

Abstract

The present invention relates to the field of pesticide packaging machines, and in particular to a bag making mechanism for a water-dispersible granule packaging machine, comprising a frame, a reeling assembly and a bag folding assembly are respectively arranged at both ends of the frame, a guide roller 1, a guide roller 2, a guide roller 3, a guide roller 4, a guide roller 5, a guide roller 6, a guide roller 7, a guide roller 8 and a guide roller 9 are sequentially arranged between the reeling assembly and the bag folding assembly along the bag feeding direction, the bag folding assembly comprises a middle rod, a linear module 3 and two groups of clamping rollers, a deviation correction assembly is arranged between the guide roller 8 and the guide roller 9, a deviation correction sensor is arranged at both ends of the deviation correction assembly, a forming roller is arranged between the guide roller 9 and the bag folding assembly, a cylinder is installed on one side of the frame, and a push rod of the cylinder is connected to the forming roller. During the bag making process, the deviation correction sensor adjusts the position of the forming roller and the middle rod in real time by controlling the telescopic range of the cylinder and the moving distance of the output end of the linear module 3, so as to ensure that a stable folding path is maintained during the folding process and avoid folding deviation.

Description

Technical Field

[0001] The invention relates to the field of pesticide packaging machines, in particular to a bag making mechanism for a water dispersible granule packaging machine. Background Art

[0002] As a pesticide preparation, water-dispersible granules need to be packaged after production for storage, transportation and sales. This packaging process requires a packaging machine.

[0003] A Chinese utility model patent with publication number CN215323346U discloses a continuous granular pesticide packaging equipment, including a packaging bag conveyor frame and a feeding device, on which a packaging bag feeding mechanism, a packaging bag folding mechanism, a longitudinal hot pressing mechanism, a packaging bag slitting mechanism and a packaging bag sealing mechanism are sequentially arranged, the packaging bag feeding mechanism includes a plurality of conveying rollers for laterally carrying the packaging bags, the packaging bag folding mechanism is longitudinally provided with a longitudinal limiting slit for the packaging bags to pass through, and the feeding device is arranged above the packaging bag conveying path between the packaging bag slitting mechanism and the packaging bag sealing mechanism.

[0004] In the above-mentioned equipment, the packaging bag is folded in the center by the packaging bag folding mechanism. During the conveying process of the packaging bag, if the tension is not coordinated or matched, it is easy to cause the packaging bag to deflect during the conveying process, and then the packaging bag folding mechanism cannot be accurately centered or maintain a stable folding path during the folding process, resulting in folding deviation.

[0005] Folding deviation not only leads to inaccurate size of the packaging bag, making it look uneven in appearance and affecting the overall aesthetics of the product, but also may cause the sealing of the packaging bag to not fit tightly, thus affecting the sealing of the packaging bag. Once the folding deviation problem is found, the production line may need to be stopped for adjustment to correct the deviation of the folding mechanism, which will lead to production interruption and reduce production efficiency. Summary of the invention

[0006] The purpose of the present application is to address the above-mentioned problems and provide a bag making mechanism for a water-dispersible granule packaging machine, which can adjust the conveying path of the packaging film in real time to maintain a stable folding path, improve the stability and continuity of the water-dispersible granule packaging process, and thus meet production needs.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is: a bag making mechanism of a water dispersible granule packaging machine, comprising a frame composed of a right side plate and a left side plate; a reel assembly for releasing a packaging film is arranged at a bottom end of the frame, a bag folding assembly for folding the packaging film is arranged at a top end of the frame, a roller group is arranged between the reel assembly and the bag folding assembly of the frame, and the roller group includes guide roller 1, guide roller 2, guide roller 3, guide roller 4, guide roller 5, guide roller 6, guide roller 7, guide roller 8 and guide roller 9 in sequence along the bag feeding direction ; The bag folding assembly includes a middle rod and a linear module three installed between the right plate and the left plate, the output end of the linear module three is installed with a sleeve facing vertically downward, the upper end of the middle rod is located inside the sleeve and is provided with a guide seat adapted to the inner diameter of the sleeve, a spring four is provided inside the sleeve, the spring four is pressed between the guide seat and the output end of the linear module three, the lower end of the middle rod passes through the sleeve and is perpendicular to the bag feeding direction, the end of the output end of the linear module three away from the guide roller nine is provided with a mounting plate two, and the bottom of the mounting plate two is provided with two groups of clamping rollers parallel to the middle rod;

[0008] The frame is provided with a correction component between the guide roller eight and the guide roller nine, and the frame is provided with correction sensors at both ends of the correction component, and the correction sensor includes a front sensor located on one side of the guide roller eight and a rear sensor located on one side of the guide roller nine; a forming roller is provided between the guide roller nine and the linear module three, and the roller body of the forming roller is narrow in the middle and wide at both ends, and the rotating rod of the forming roller is respectively slidably connected to the right side plate and the left side plate, and a cylinder is installed on one side of the right side plate, and the push rod of the cylinder is connected to one end of the rotating rod through a coupling, and the cylinder drives the forming roller to move laterally between the right side plate and the left side plate, and the lateral movement direction of the forming roller is perpendicular to the middle rod.

[0009] Preferably, a stamping assembly is arranged between the guide roller five and the guide roller six, and the stamping assembly includes a linear module 1 and a linear module 2 installed between the right plate and the left plate, a water-cooling seat is installed at the output end of the linear module 1, a concave die is embedded in one side of the water-cooling seat, and a punch driving assembly is arranged at the output end of the linear module 2, and the punch driving assembly includes a connecting rod and a mounting plate 1 fixed to the output end of the linear module 2, a servo motor 1 is installed on the back of the mounting plate 1, the output shaft of the servo motor 1 is connected to a driving disk, and the front end surface of the mounting plate 1 is slidably connected to a support seat, one end of the connecting rod is hinged at the outer edge of the driving disk, and the other end of the connecting rod is hinged to the support seat, an electric heating seat is installed on one side of the support seat, and a punch matching the concave die is embedded in one end of the electric heating seat.

[0010] Preferably, the front end surface of the mounting plate is provided with an unwinding disk and a winding disk spaced apart from each other, the winding disk is drivingly connected to the unwinding disk through a closed-loop flexible belt, the rollers of the unwinding disk and the winding disk are provided with belt grooves for accommodating the flexible belt, one end of the roller of the unwinding disk is provided with a cylindrical gear, and one end of the driving disk is provided with a fan-shaped gear meshing with the cylindrical gear, the unwinding disk is wound with an ink ribbon, and multiple groups of guide rollers for guiding the ink ribbon to pass are provided between the unwinding disk and the winding disk, wherein a printing section is formed between two groups of the guide rollers, and the water cooling seat and the electric heating seat are respectively located on both sides of the printing section.

[0011] Preferably, one side of the electric heating seat and the water cooling seat is provided with a slot connected to their respective mounting end faces, the concave mold and the convex mold are composed of a plurality of independent character molds, the printing surface of the character mold protrudes from the mounting end faces of the electric heating seat and the water cooling seat, and one side of the electric heating seat and the water cooling seat is provided with a baffle for blocking the slot notch.

[0012] Preferably, the electric heating seat is installed to the support seat through a buffer seat, one end of the buffer seat is provided with a dovetail groove, the other end of the buffer seat is provided with four groups of guide rods that movably pass through the support seat, the end of the guide rod is provided with a tail seat, the guide rod is sleeved with spring 2, and the spring 2 is abutted between the buffer seat and the support seat, one end of the electric heating seat is provided with a dovetail pin embedded in the dovetail groove, one side of the dovetail pin is provided with a positioning hole, one side of the buffer seat is provided with a groove, one side of the groove is respectively provided with through holes connecting the dovetail groove, a shift block is placed in the groove, a locking column is provided at one end of the shift block, the locking column is inserted in the through hole, and a limiting column is provided at the other end of the shift block, the limiting column is sleeved with spring 1, and the spring 1 is abutted between the shift block and the other side wall of the groove.

[0013] Preferably, the frame is provided with a bag pressing assembly above the forming roller, and the bag pressing assembly includes a fixed plate and a movable plate, one end of the fixed plate is fixed to the left plate, and the other end of the fixed plate is provided with a connecting seat, one end of the movable plate is installed with a motor, and the output shaft of the motor is installed with a rubber wheel, and the rubber wheel is located above the middle of the forming roller, and the other end of the movable plate is fixed with a rotating shaft, and one end of the rotating shaft movably passes through the connecting seat.

[0014] Preferably, an adjusting roller one is arranged between the guide roller two and the guide roller three, a pair of mounting seats distributed up and down are installed on the opposite side walls of the right plate and the left plate, a guide rod is arranged between each pair of the mounting seats, a slider is slidably connected to the guide rod, the adjusting roller one is installed between two groups of sliders, a baffle is arranged on one side of one of the sliders, an oblong hole extending along the guide rod is arranged on one side of the guide rod of the left plate, and a plurality of groups of sensors for detecting the position of the baffle are fixed to the oblong hole by bolts.

[0015] Preferably, an adjusting roller 2 is arranged between the guide roller 7 and the guide roller 8, and cylindrical slide seats are arranged at both ends of the adjusting roller 2. An annular groove is arranged in the middle of the slide seat, and the right plate and the left plate are both provided with horizontal movable grooves, and the movable groove and the annular groove are interlocked with each other. A support rod that movably passes through the slide seat is arranged on one side of the inner wall of the movable groove, and an end seat is arranged at the end of the support rod. The support rod is sleeved with a spring 3, and the spring 3 is pressed between the slide seat and the inner wall of the movable groove.

[0016] Preferably, the correction assembly includes a support frame and a support plate installed between the right plate and the left plate, the lower end surface of the support plate is installed with servo motor 2, the support frame is located above the support plate and installed on the output end of servo motor 2, parallel guide rollers are arranged on both sides of the support frame, and the bottom of the support frame is provided with multiple groups of universal wheels distributed around the output end of servo motor 2, and the universal wheels roll on the upper end surface of the support plate.

[0017] Preferably, the unwinding assembly includes an unwinding motor installed on the outer wall of the left plate, the output shaft of the unwinding motor is installed with a cone seat 1 pointing to the inner wall of the right plate, the inner wall of the right plate is fixed with a nut seat, a threaded rod is connected to the nut seat, one end of the threaded rod is rotatably connected with a cone seat 2 pointing to the cone seat 1, and the other end of the threaded rod is provided with a handwheel.

[0018] After adopting the above technical solution, the beneficial effects of the present invention are:

[0019] When the packaging film passes through the forming roller, the packaging film is pre-folded from both sides to the middle at a certain angle in the width direction, and then the packaging film is folded in the middle to form a double-sided bag with the cooperation of the middle rod and the clamping roller, completing the initial bag making work. During the bag making process, the rear sensor detects the conveying path of the packaging film after deviation correction, and adjusts the position of the forming roller and the middle rod in real time by controlling the extension and contraction range of the cylinder and the moving distance of the three output ends of the linear module to ensure that the folding path is kept stable during the folding process to avoid folding deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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.

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a schematic diagram of bag feeding of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the unwinding component;

[0024] Figure 4 for Figure 3 A local enlarged schematic diagram of the middle A;

[0025] Figure 5 is a schematic diagram of the structure of the stamping component;

[0026] Figure 6 It is a structural schematic diagram of the punch drive assembly;

[0027] Figure 7 It is a schematic diagram of the structure of the drive disk;

[0028] Figure 8 It is a structural schematic diagram of the unwinding reel;

[0029] Fig. 9 It is a structural schematic diagram of a buffer seat;

[0030] Fig.10 The figure is a schematic diagram of the installation of the punch;

[0031] Fig.11 This is a schematic diagram of the installation of the second adjusting roller;

[0032] Fig.12 It is a structural schematic diagram of the correction component;

[0033] Fig.13 It is a structural schematic diagram of the bag pressing assembly;

[0034] Fig.14 It is a structural schematic diagram of the bag folding component;

[0035] Fig.15 A cross-sectional view of the sleeve.

[0036] In the figure: 1-right side plate, 2-adjusting roller 1, 3-guide roller 2, 4-guide roller 1, 5-cone seat 1, 6-left side plate, 7-unwinding motor, 8-guide roller 5, 9-imprinting assembly, 10-guide roller 6, 11-guide roller 7, 12-adjusting roller 2, 13-guide roller 8, 14-correction assembly, 15-correction sensor, 16-bag pressing assembly, 17-guide roller 9, 18-bag folding assembly, 19-cylinder, 20-forming roller, 21-guide Roller 4, 22-guide roller 3, 23-mounting seat, 24-cone seat 2, 25-nut seat, 26-threaded rod, 27-handwheel, 28-guide rod, 29-long round hole, 30-blocking piece, 31-slider, 32-in-place sensor, 33-linear module 1, 34-water cooling seat, 35-punch drive assembly, 36-linear module 2, 37-die, 38-mounting plate 1, 39-winding reel, 40-unwinding reel, 41-servo motor 1, 42 - driving plate, 43- connecting rod, 44- supporting seat, 45- buffer seat, 46- guide roller, 47- ink ribbon, 48- electric heating seat, 49- sector gear, 50- cylindrical gear, 51- flexible belt, 52- belt groove, 53- punch, 54- baffle, 55- dovetail pin, 56- dovetail groove, 57- locking column, 58- groove, 59- spring 1, 60- shift block, 61- tail seat, 62- spring 2, 63- slot, 64- slide seat, 65- ring Slot, 66-movable slot, 67-support rod, 68-spring three, 69-end seat, 70-support frame, 71-guide roller, 72-support plate, 73-servo motor two, 74-universal wheel, 75-fixed plate, 76-rotating shaft, 77-connecting seat, 78-movable plate, 79-rubber wheel, 80-motor, 81-linear module three, 82-sleeve, 83-middle rod, 84-mounting plate two, 85-clamping roller, 86-spring four, 87-guide seat. DETAILED DESCRIPTION

[0037] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention.

[0038] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the present invention. In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" 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 directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0039] The embodiment of the present invention provides a bag making mechanism for a water dispersible granule packaging machine, which can adjust the conveying path of the packaging film in real time to maintain a stable folding path, improve the stability and continuity of the water dispersible granule packaging process, and meet production needs.

[0040] like Figure 1-2 As shown, the bag making mechanism of the packaging machine includes a frame body composed of a right side plate 1 and a left side plate 6, a reel assembly for storing and continuously releasing the packaging film is arranged at one end of the bottom of the frame body, and a bag folding assembly 18 for folding the packaging film into a desired bag shape is arranged at one end of the top of the frame body. A roller group is arranged between the reel assembly and the bag folding assembly 18 of the frame body, and the roller group plays a guiding role to ensure that the packaging film remains stable and does not deviate from the path during the conveying process. The roller group includes a guide roller 1 4, a guide roller 2 3, a guide roller 3 22, a guide roller 4 21, a guide roller 5 8, a guide roller 6 10, a guide roller 7 11, a guide roller 8 13 and a guide roller 9 17 arranged in sequence along the bag feeding direction.

[0041] like Figure 3 As shown, the unwinding assembly includes a threaded rod 26 and an unwinding motor 7 installed on the outer side wall of the left side plate 6. The output shaft of the unwinding motor 7 is installed with a cone seat 1 5 pointing to the inner side wall of the right side plate 1. A nut seat 25 with an internal threaded hole is fixedly installed on the inner side wall of the right side plate 1. One end of the threaded rod 26 passes through the nut seat 25 and is rotatably connected with a cone seat 24 pointing to the cone seat 1 5. The other end of the threaded rod 26 is provided with a hand wheel 27. The bobbin wound with the packaging film is installed between the cone seat 1 5 and the cone seat 2 24. The hand wheel 27 is rotated to drive the threaded rod 26 to rotate in the nut seat 25. The rotation of the threaded rod 26 will push the cone seat 2 24 close to or away from the cone seat 1 5, thereby changing the size of the gap between the two, thereby realizing the rapid loading or unloading of the bobbin.

[0042] like Figure 3-4As shown, an adjusting roller 12 for adjusting tension is arranged between the guide roller 23 and the guide roller 322. A pair of mounting seats 23 distributed up and down are installed on the inner side walls opposite to the right side plate 1 and the left side plate 6, and a guide rod 28 is arranged between each pair of mounting seats 23. A slider 31 is slidably connected to the guide rod 28, and the adjusting roller 12 is installed between two sets of sliders 31. After the packaging film passes around the adjusting roller 12 from the guide roller 322, it is guided to the guide roller 421, forming a continuous transmission path. When the packaging film passes around the adjusting roller 12, the film material will generate a certain pulling force, trying to pull the adjusting roller 12 up. However, due to the effect of its own gravity, the adjusting roller 12 tends to remain in its original position, thereby resisting this upward pulling force. Since the adjusting roller 12 is slidably connected to the guide rod 28 through the slider 31, it can move freely within a certain range to respond to the change of the tension of the packaging film, thereby realizing flexible adjustment of the tension.

[0043] A baffle 30 used as a position detection mark is provided on one side of one slider 31, and an oblong hole 29 extending along the guide rod 28 is provided on one side of the left plate 6. A plurality of in-position sensors 32 for detecting the baffle 30 are fixed on the oblong hole 29 by bolts. The oblong hole 29 provided on the left plate 6 allows a certain adjustment range of the in-position sensor 32 during installation. When the baffle 30 passes through a certain in-position sensor 32, the sensor will send a signal to the central control system (not shown in the figure) indicating that the adjustment roller 2 has reached the preset position, and the central control system will send a command to the unwinding motor 7 to adjust its speed. When the baffle 30 is detected by the uppermost in-position sensor 32, the tension of the surface packaging film is too large, and the central control system will reduce the speed of the unwinding motor to reduce the supply speed of the packaging film. When the baffle 30 is detected by the lowermost in-position sensor 32, the tension of the surface packaging film is too small, and the central control system will increase the speed of the unwinding motor to increase the supply speed of the packaging film.

[0044] like Figure 1 , Figure 5 as well as Figure 6As shown, a stamping assembly 9 for printing the production date and production batch number of the product on the packaging film is arranged between the guide roller 5 8 and the guide roller 6 10, which includes a linear module 1 33 and a linear module 2 36 installed between the right side plate 1 and the left side plate 6. A water cooling seat 34 is installed at the output end of the linear module 1 33, and a concave mold 37 is embedded in one side of the water cooling seat 34, and a concave graphic design is provided on the concave mold 37. A convex mold driving assembly 35 is arranged at the output end of the linear module 2 36, and the convex mold driving assembly 35 includes a connecting rod 43 and a mounting plate 1 38 fixed to the output end of the linear module 2 36. A servo motor 1 41 is installed on the back of the mounting plate 1 38, and the output shaft of the servo motor 1 41 is connected to the driving disk 42, and the front end surface of the mounting plate 1 38 is slidably connected to the support seat 44. One end of the connecting rod 43 is hinged at the outer edge of the driving disk 42, and the other end of the connecting rod 43 is hinged to the support seat 44. An electric heating seat 48 is installed on one side of the support seat 44 , and a male mold 53 adapted to the female mold 37 is embedded in one end of the electric heating seat 48 , and a raised graphic design is provided on the male mold 53 .

[0045] During the stamping process, the servo motor 41 drives the driving disk 42 to rotate, and the supporting seat 44 is driven by the connecting rod 43 to reciprocate, thereby realizing the stamping action of the punch 53. The electric heating seat 48 provides necessary heating support for the punch 53, and softens the packaging film by heating, improving its plasticity, so that it is easier to be shaped by the punch 53 to improve the stamping quality. The water cooling seat 34 can ensure that the die 37 is kept within a suitable temperature range and reduce the temperature of the non-stamping part of the packaging film.

[0046] When the male mold 53 contacts the female mold 37, a relief effect is formed under the action of pressure, achieving a three-dimensional visual effect, which not only improves the appearance and texture of the product, but also greatly enhances the anti-counterfeiting property. Compared with surface treatment methods such as inkjet printing, the embossed marks are difficult to be easily altered or copied, so the appearance of counterfeit and shoddy products can be reduced to a certain extent. In addition, the marks formed by embossing are more durable. Inkjet printing is easy to wear or fall off during transportation, storage and use, while embossed marks can remain clear and readable for a long time.

[0047] like Figure 6-8As shown, the front end surface of the mounting plate 1 38 is provided with an unwinding reel 40 and a rewinding reel 39 spaced apart from each other. The unwinding reel 40 is used to store and release the ink ribbon 47, on which the ink ribbon 47 is coated with ink or transferable pigment, and the rewinding reel 39 is used to collect the printed ink ribbon 47, forming a closed-loop transmission system. Multiple groups of guide rollers 46 are provided between the unwinding reel 40 and the rewinding reel 39 for guiding the ink ribbon 47 to pass through, wherein a printing part close to the packaging film is formed between two groups of guide rollers 46, and the water cooling seat 34 and the electric heating seat 48 are respectively located on both sides of the printing part. The rewinding reel 39 is connected to the unwinding reel 40 through a closed-loop flexible belt 51, and the rollers of the unwinding reel 40 and the rewinding reel 39 are provided with belt grooves 52 for accommodating the flexible belt 51, so as to ensure that the flexible belt 51 remains stable during the transmission process and prevents slippage or deviation.

[0048] A cylindrical gear 50 is provided at one end of the roller of the unwinding disk 40, and a fan gear 49 meshing with the cylindrical gear 50 is provided at one end of the driving disk 42. Whenever the support seat 44 drives the punch 53 to complete a reciprocating motion (i.e., one imprint), the fan gear 49 will rotate one circle, thereby driving the unwinding disk 40 to rotate a certain angle. This rotation angle corresponds to a length on the ink ribbon 47. After one imprint is completed, the ink ribbon 47 will move one grid to prepare a new ink area for the next imprint. The electric heating seat 48 can increase the temperature of the punch 53, which helps the ink or pigment on the ink ribbon 47 to better adhere to the packaging film and enhance the imprinting effect. The winding disk 39 keeps synchronous rotation with the unwinding disk 40 through the flexible belt 51 to collect the part of the ink ribbon 47 that has been printed. The above process is repeated continuously to achieve continuous and accurate printing operations.

[0049] like Fig. 9 As shown, the electric heating seat 48 is mounted to the support seat 44 through the buffer seat 45. The buffer seat 45 can serve as an intermediary between the electric heating seat 48 and the support seat 44, and can effectively absorb and disperse vibration and impact from the electric heating seat 48 or the external environment. This helps to protect the electric heating seat 48 from damage and maintain its stable working state.

[0050] The dovetail groove 56 at one end of the buffer seat 45 cooperates with the dovetail pin 55 at one end of the electric heating seat 48 to achieve accurate positioning and stable installation of the electric heating seat 48 on the buffer seat 45. The four sets of guide rods at the other end of the buffer seat 45 move through the support seat 44, and a tail seat 61 is provided at its end. These guide rods not only play a guiding role, but also provide additional buffering and shock absorbing effects for the buffer seat 45 through the spring 2 62 sleeved thereon. When the electric heating seat 48 is subjected to vibration or impact, the spring 2 62 can be deformed to absorb energy, thereby protecting the electric heating seat 48 and the support seat 44.

[0051] A shift block 60 is placed in the groove 58 on one side of the buffer seat 45, and a locking column 57 and a limiting column are respectively arranged on both sides of the shift block 60. The locking column 57 is inserted into the through hole connected to the dovetail groove 56, and cooperates with the positioning hole on one side of the dovetail pin 55, so as to realize the locking function of the electric heating seat 48 on the buffer seat 45. When the electric heating seat 48 needs to be removed or installed, the locking column 57 can be unlocked or locked by operating the shift block 60. A spring 59 is sleeved on the limiting column of the shift block 60, and the spring is pressed between the shift block 60 and the other side wall of the groove 58. The function of the spring 59 is to provide a reset force for the shift block 60 to ensure that the shift block 60 can automatically return to its original position after the unlocking or locking operation.

[0052] like Fig.10 As shown, the installation method of the concave mold 37 on the water cooling seat 34 is consistent with the installation method of the convex mold 53 on the electric heating seat 48. Taking the electric heating seat 48 as an example, one side of the electric heating seat 48 is provided with a slot 63 connected to the installation end face and a baffle 54 for blocking the notch of the slot 63. The printing surfaces of the concave mold 37 and the convex mold 53 protrude from the installation end faces of the electric heating seat 48 and the water cooling seat 34, ensuring that the printing surface of the mold will directly contact the packaging film to be processed. The concave mold 37 and the convex mold 53 are composed of several independent molds, so they can be easily replaced, added or rearranged as needed. These molds are placed in the slot 63 in a specific order to form the production date or production batch number.

[0053] like Fig.11 As shown, an adjusting roller 2 12 for adjusting tension is arranged between the guide roller 7 11 and the guide roller 8 13. Both ends of the adjusting roller 2 12 are provided with a cylindrical slide 64, the middle of the slide 64 is provided with an annular groove 65, and the right side plate 1 and the left side plate 6 are provided with a horizontal movable groove 66. The movable groove 66 and the annular groove 65 are interlocked with each other, so that the slide 64 can slide freely along the movable groove 66 while maintaining a certain stability and guidance. A support rod 67 that movably passes through the slide 64 is arranged on one side of the inner wall of the movable groove 66, and an end seat 69 is arranged at the end of the support rod 67. The support rod 67 is sleeved with a spring 3 68, and the spring 3 68 is pressed between the slide 64 and the inner side wall of the movable groove 66.

[0054] The packaging film from the guide roller 6 10 bypasses the adjusting roller 2 12 and is directed to the guide roller 7 11. The packaging film will generate a certain pulling force, trying to pull the adjusting roller 2 12. Since the adjusting roller 2 12 is acted upon by the spring 3 68, it tends to remain in its original position, thereby resisting this pulling force. When the external tension increases, the adjusting roller 2 12 compresses the spring 3 68, while the spring 3 68 also resists this pulling force. When the external tension decreases or disappears, the spring 3 68 releases the stored energy, pushing the adjusting roller 2 12 to move in the opposite direction, that is, away from the guide roller 6 10, thereby restoring the original path length and tension state of the packaging film.

[0055] like Fig.12 As shown, a deviation correction component 14 is arranged between the guide roller eight 13 and the guide roller nine 17, and the deviation correction component 14 includes a support frame 70 and a support plate 72 installed between the right side plate 1 and the left side plate 6. A servo motor two 73 is installed on the lower end surface of the support plate 72, and the support frame 70 is located on the support plate 72 and installed on the output end of the servo motor two 73. Parallel guide rollers 71 are arranged on both sides of the support frame 70. The main function of the guide rollers 71 is to guide the material to pass through, and when the material is offset, the running track of the material is corrected by adjusting its position. The bottom of the support frame 70 is provided with multiple groups of universal wheels 74 distributed around the output end of the servo motor two 73, and the universal wheels 74 roll on the upper end surface of the support plate 72, reducing the friction resistance of the support frame 70 during the movement. The frame body is provided with deviation correction sensors 15 at both ends of the deviation correction component 14, and the deviation correction sensor 15 includes a front sensor located on one side of the guide roller eight 13 and a rear sensor located on one side of the guide roller nine 17.

[0056] When the packaging film deviates during the transmission process, the front sensor first detects this change and sends a signal to the central control system. After the central control system calculates the offset that needs to be adjusted, it controls the servo motor 2 73 to start, and the support frame 70 rotates, so that the guide roller 71 deflects toward the right side plate 1 or the left side plate 6. This deflection will change the path of the packaging film through the guide roller 71, thereby guiding the packaging film to return to the correct position. After the packaging film passes through the correction area, the rear sensor will detect the position of the packaging film again to confirm the correction effect. If the correction is successful, the packaging film will continue to be transmitted along the predetermined path; if it is still offset, the central control system will continue to adjust until the correction is successful.

[0057] like Figure 1 and Fig.13 As shown, a forming roller 20 is arranged between the guide roller 9 17 and the linear module 3 81. The roller body of the forming roller 20 is narrow in the middle and wide at both ends, and the rotating rod of the forming roller 20 is slidably connected to the right side plate 1 and the left side plate 6 respectively. The special shape of the forming roller 20 enables it to exert an extrusion force on the packaging film during the rotation process, so that the packaging film is pre-folded from both sides to the middle at a certain angle in the width direction, in preparation for the subsequent folding operation. A cylinder 19 is installed on one side of the right side plate 1, and the push rod of the cylinder 19 is connected to one end of the rotating rod through a coupling. The cylinder 19 drives the forming roller 20 to move horizontally between the right side plate 1 and the left side plate 6, and the lateral movement direction of the forming roller 20 is perpendicular to the middle rod 83. The rear sensor detects the conveying path of the packaging film after deviation correction, and adjusts the position of the forming roller 20 by controlling the telescopic range of the cylinder 19, so that the center of the packaging film can be aligned with the center of the forming roller 20, ensuring the accuracy and consistency of the folding.

[0058] like Fig.13As shown, the frame is provided with a bag pressing assembly 16 above the forming roller 20. The bag pressing assembly 16 includes a fixed plate 75 and a movable plate 78, one end of the fixed plate 75 is fixed to the left side plate 6, and the other end of the fixed plate 75 is provided with a connecting seat 77. A motor 80 is installed at one end of the movable plate 78, and a rubber wheel 79 is installed on the output shaft of the motor 80. The rubber wheel 79 is located above the middle of the forming roller 20, and a rotating shaft 76 is fixed at the other end of the movable plate 78, and one end of the rotating shaft 76 movably passes through the connecting seat 77.

[0059] During the bag making process, when the packaging film passes through the forming roller 20 for preliminary folding, the bag pressing assembly 16 starts to work. The motor 80 drives the rubber wheel 79 to rotate, and the rubber wheel 79 contacts the packaging film below under the action of gravity and applies a certain pressure. This pressure helps the packaging film to better fit on the forming roller 20 and prevents it from deflecting or wrinkling during the folding process. At the same time, the rubber wheel 79 can provide sufficient friction when contacting the packaging film, playing a role in feeding.

[0060] like Fig.14 and Fig.15 As shown, the bag folding assembly 18 includes a middle rod 83 and a linear module three 81 installed between the right side plate 1 and the left side plate 6. A sleeve 82 facing vertically downward is installed at the output end of the linear module three 81. The upper end of the middle rod 83 is located inside the sleeve 82 and is provided with a guide seat 87 adapted to the inner diameter of the sleeve 82. The lower end of the middle rod 83 passes through the sleeve 82 and is perpendicular to the bag feeding direction. A spring four 86 is provided inside the sleeve 82, and the spring four 86 is abutted between the guide seat 87 and the output end of the linear module three 81. When the packaging film fluctuates up and down due to uneven tension, the middle rod 83 will follow the movement and absorb part of the impact force through the spring four 86. If the middle rod 83 is rigid and cannot move, then when the packaging film fluctuates, it may puncture the packaging film because it cannot adapt to such changes, resulting in bag making failure. A mounting plate 2 84 is provided at the output end of the linear module 3 81 away from the guide roller 9 17, and two groups of clamping rollers 85 parallel to the middle rod 83 are installed at the bottom of the mounting plate 2 84 to clamp and guide the packaging film during the folding process.

[0061] When the packaging film passes through the forming roller 20, the special design of the forming roller 20, which is narrow in the middle and wide at both ends, exerts an extrusion force in the width direction of the packaging film. This extrusion force causes the two sides of the packaging film to be pre-folded toward the middle at a certain angle. This folding process lays the foundation for the subsequent folding operation, ensuring that the packaging film can be folded along the predetermined path. After folding, the packaging film continues to be transmitted forward to the position where the middle rod 83 and the clamping roller 85 are located. At this time, the middle rod 83 is located on the center line of the packaging film, and the clamping rollers 85 are located on both sides of the rear of the middle rod 83. With the cooperation of the middle rod 83 and the clamping rollers 85, the packaging film is folded toward the middle to form the preliminary structure of the double-sided bag.

[0062] In order to ensure the stability and accuracy of the folding process, the bag-making mechanism uses a rear sensor to detect the conveying path of the packaging film after deviation correction. The rear sensor can monitor the position and state of the packaging film in real time, and once a deviation or unstable factor is found, it will immediately send a signal to the central control system. After receiving the signal from the rear sensor, the central control system will respond quickly. By controlling the telescopic range of the cylinder 19, the position of the forming roller 20 can be adjusted so that it always remains in the optimal position required for the folding of the packaging film. At the same time, by controlling the moving distance of the output end of the linear module three 81, the position of the middle rod 83 can be adjusted in real time to ensure that the middle rod 83 and the clamping roller 85 can accurately guide the packaging film to fold in half during the folding process. This real-time adjustment mechanism ensures that the packaging film always maintains a stable folding path during the folding process, avoiding bag-making failures caused by folding deviations.

[0063] According to the embodiments of the present invention as described above, these embodiments do not describe all the details in detail, nor do they limit the invention to specific embodiments. Obviously, many modifications and changes can be made based on the above description. 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 make good use of the present invention and the modified use based on the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bag-making mechanism for a water-dispersible granule packaging machine, comprising a frame body consisting of a right side plate (1) and a left side plate (6); characterized in that: A reeling assembly for releasing the packaging film is disposed at one end of the bottom of the frame, a bag folding assembly (18) for folding the packaging film is disposed at one end of the top of the frame, a roller group is disposed between the reeling assembly and the bag folding assembly (18), and the roller group includes a guide roller 1 (4), a guide roller 2 (3), a guide roller 3 (22), a guide roller 4 (21), a guide roller 5 (8), a guide roller 6 (10), a guide roller 7 (11), a guide roller 8 (13) and a guide roller 9 (17) in sequence along the bag feeding direction; the bag folding assembly (18) includes a middle rod (8 3) and a linear module three (81) fixedly mounted between the right side plate (1) and the left side plate (6), wherein the output end of the linear module three (81) is mounted with a sleeve (82) facing vertically downward, the upper end of the middle rod (83) is located inside the sleeve (82) and is provided with a guide seat (87) adapted to the inner diameter of the sleeve (82), the sleeve (82) is provided with a spring four (86), the spring four (86) is abutted between the guide seat (87) and the output end of the linear module three (81), the lower end of the middle rod (83) passes through the sleeve (82) and is perpendicular to the bag inlet. The output end of the linear module three (81) is provided with a mounting plate two (84) at one end away from the guide roller nine (17), and two groups of clamping rollers (85) parallel to the middle rod (83) are installed at the bottom of the mounting plate two (84); the frame is provided with a deviation correction component (14) between the guide roller eight (13) and the guide roller nine (17), and the frame is provided with deviation correction sensors (15) at both ends of the deviation correction component (14), and the deviation correction sensor (15) includes a front sensor located on one side of the guide roller eight (13) and a rear sensor located on one side of the guide roller nine (17). A forming roller (20) is arranged between the guide roller nine (17) and the linear module three (81), the roller body of the forming roller (20) is narrow in the middle and wide at both ends, the rotating rod of the forming roller (20) is slidably connected to the right side plate (1) and the left side plate (6), a cylinder (19) is installed on one side of the right side plate (1), the push rod of the cylinder (19) is connected to one end of the rotating rod through a coupling, the cylinder (19) drives the forming roller (20) to move horizontally between the right side plate (1) and the left side plate (6), and the lateral movement direction of the forming roller (20) is perpendicular to the middle rod (83); When the packaging film deviates, the front sensor first detects this change and sends a signal to the central control system of the bag making mechanism. The central control system calculates the amount of deviation that needs to be adjusted and guides the packaging film back to the correct position through the deviation correction component (14). After the packaging film passes through the deviation correction area of ​​the deviation correction component (14), the rear sensor detects the position of the packaging film again to confirm the deviation correction effect. If the deviation correction is successful, the packaging film will continue to be transmitted along the predetermined path. If it is still deviated, the central control system will continue to adjust until the deviation correction is successful. After the rear sensor confirms the deviation correction result, the central control system controls the extension and contraction range of the cylinder (19) and adjusts the position of the forming roller (20) so that it always remains in the optimal position required for folding the packaging film. At the same time, the central control system controls the moving distance of the output end of the linear module three (81) and adjusts the position of the middle rod (83) to ensure that the middle rod (83) and the clamping roller (85) can accurately guide the packaging film to be folded in half during the folding process.

2. The bag making mechanism of the water dispersible granule packaging machine according to claim 1, characterized in that: A stamping assembly (9) is arranged between the guide roller five (8) and the guide roller six (10), and the stamping assembly (9) comprises a linear module one (33) and a linear module two (36) installed between the right side plate (1) and the left side plate (6), a water cooling seat (34) is installed at the output end of the linear module one (33), and a concave die (37) is embedded in one side of the water cooling seat (34), and a convex die driving assembly (35) is arranged at the output end of the linear module two (36), and the convex die driving assembly (35) comprises a connecting rod (43) and a connecting rod (43) fixed at the output end of the linear module two (36). A mounting plate (38) is mounted on the end of the mounting plate (38), a servo motor (41) is mounted on the back of the mounting plate (38), an output shaft of the servo motor (41) is connected to a drive disk (42), a front end surface of the mounting plate (38) is slidably connected to a support seat (44), one end of the connecting rod (43) is hinged at the outer edge of the drive disk (42), the other end of the connecting rod (43) is hinged to the support seat (44), an electric heating seat (48) is mounted on one side of the support seat (44), and a convex mold (53) adapted to the concave mold (37) is embedded in one end of the electric heating seat (48).

3. The bag making mechanism of the water dispersible granule packaging machine according to claim 2, characterized in that: The front end surface of the mounting plate 1 (38) is provided with an unwinding disk (40) and a winding disk (39) spaced apart from each other. The winding disk (39) is connected to the unwinding disk (40) by driving via a closed-loop flexible belt (51). The rollers of the unwinding disk (40) and the winding disk (39) are provided with belt grooves (52) for accommodating the flexible belt (51). A cylindrical gear (50) is provided at one end of the rotating roller of the unwinding disk (40). A fan-shaped gear (49) meshing with the cylindrical gear (50) is provided at one end of the driving disk (42). An ink ribbon (47) is wound around the unwinding disk (40). A plurality of guide rollers (46) for guiding the ink ribbon (47) to pass through are provided between the unwinding disk (40) and the winding disk (39), wherein a printing section is formed between two groups of the guide rollers (46), and the water cooling seat (34) and the electric heating seat (48) are respectively located on both sides of the printing section.

4. The bag making mechanism of the water dispersible granule packaging machine according to claim 2, characterized in that: A slot (63) communicating with the respective mounting end faces is disposed on one side of the electric heating seat (48) and the water cooling seat (34); the concave mold (37) and the convex mold (53) are composed of a plurality of independent character molds; the printing surface of the character mold protrudes from the mounting end faces of the electric heating seat (48) and the water cooling seat (34); and a baffle (54) for blocking the notch of the slot (63) is disposed on one side of the electric heating seat (48) and the water cooling seat (34).

5. The bag making mechanism of the water dispersible granule packaging machine according to claim 4, characterized in that: The electric heating seat (48) is mounted on the support seat (44) via a buffer seat (45); a dovetail groove (56) is provided at one end of the buffer seat (45); four groups of guide rods movably passing through the support seat (44) are provided at the other end of the buffer seat (45); a tail seat (61) is provided at the end of the guide rod; a second spring (62) is sleeved on the guide rod; the second spring (62) is abutted between the buffer seat (45) and the support seat (44); a dovetail pin (55) embedded in the dovetail groove (56) is provided at one end of the electric heating seat (48); the dovetail pin A positioning hole is provided on one side of the buffer seat (45), a groove (58) is provided on one side of the groove (58), through holes communicating with the dovetail groove (56) are provided on one side of the groove (58), a shift block (60) is placed in the groove (58), a locking column (57) is provided at one end of the shift block (60), the locking column (57) is inserted into the through hole, a limiting column is provided at the other end of the shift block (60), the limiting column is sleeved with a spring 1 (59), and the spring 1 (59) is pressed between the shift block (60) and the other side wall of the groove (58).

6. The bag making mechanism of the water dispersible granule packaging machine according to claim 1, characterized in that: The frame is provided with a bag pressing assembly (16) above the forming roller (20), and the bag pressing assembly (16) comprises a fixed plate (75) and a movable plate (78), one end of the fixed plate (75) is fixed to the left side plate (6), and the other end of the fixed plate (75) is provided with a connecting seat (77), one end of the movable plate (78) is installed with a motor (80), and the output shaft of the motor (80) is installed with a rubber wheel (79), and the rubber wheel (79) is located above the middle of the forming roller (20), and the other end of the movable plate (78) is fixed with a rotating shaft (76), and one end of the rotating shaft (76) movably passes through the connecting seat (77).

7. The bag making mechanism of the water dispersible granule packaging machine according to claim 1, characterized in that: An adjusting roller 1 (2) is arranged between the guide roller 2 (3) and the guide roller 3 (22); a pair of mounting seats (23) distributed up and down are installed on the opposite side walls of the right plate (1) and the left plate (6); a guide rod (28) is arranged between each pair of the mounting seats (23); a slider (31) is slidably connected to the guide rod (28); the adjusting roller 1 (2) is installed between two groups of sliders (31); a baffle (30) is arranged on one side of one of the sliders (31); an oblong hole (29) extending along the guide rod (28) is arranged on one side of the left plate (6); and a plurality of in-position sensors (32) for detecting the baffle (30) are fixed to the oblong hole (29) by bolts.

8. The bag making mechanism of the water dispersible granule packaging machine according to claim 1, characterized in that: An adjusting roller 2 (12) is arranged between the guide roller 7 (11) and the guide roller 8 (13), and a cylindrical slide seat (64) is arranged at both ends of the adjusting roller 2 (12), and an annular groove (65) is arranged in the middle of the slide seat (64). The right side plate (1) and the left side plate (6) are both provided with a horizontal movable groove (66), and the movable groove (66) and the annular groove (65) are mutually engaged. A support rod (67) that movably passes through the slide seat (64) is arranged on one side of the inner wall of the movable groove (66), and an end seat (69) is arranged at the end of the support rod (67). The support rod (67) is sleeved with a spring 3 (68), and the spring 3 (68) is pressed between the slide seat (64) and the inner wall of the movable groove (66).

9. The bag making mechanism of the water dispersible granule packaging machine according to claim 1, characterized in that: The deviation correction component (14) comprises a support frame (70) and a support plate (72) installed between the right side plate (1) and the left side plate (6); a servo motor 2 (73) is installed on the lower end surface of the support plate (72); the support frame (70) is located on the support plate (72) and installed on the output end of the servo motor 2 (73); parallel guide rollers (71) are arranged on both sides of the support frame (70); a plurality of universal wheels (74) distributed around the output end of the servo motor 2 (73) are arranged at the bottom of the support frame (70); the universal wheels (74) roll on the upper end surface of the support plate (72).

10. The bag making mechanism of the water dispersible granule packaging machine according to claim 1, characterized in that: The unwinding assembly comprises an unwinding motor (7) mounted on the outer wall of the left side plate (6); the output shaft of the unwinding motor (7) is mounted with a cone seat 1 (5) pointing to the inner wall of the right side plate (1); a nut seat (25) is fixed to the inner wall of the right side plate (1); a threaded rod (26) is connected to the nut seat (25); one end of the threaded rod (26) is rotatably connected to a cone seat 2 (24) pointing to the cone seat 1 (5); and the other end of the threaded rod (26) is provided with a hand wheel (27).

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