A multi-strip charter machine

Abstract

A multi-row strip packaging machine includes a film feeding mechanism, a color mark detection mechanism, a longitudinal sealing mechanism 4, a first transverse sealing mechanism, a second transverse sealing mechanism, and a punching mechanism. The longitudinal sealing mechanism 4 includes a strip packaging guiding and forming module, a first follow-up lifting module, and a longitudinal sealing module. The first follow-up lifting module drives several sets of longitudinal sealing modules to move synchronously up and down with the strip packaging. The first and second transverse sealing mechanisms are parallel to each other and are used for the first and second transverse sealing of the strip packaging, respectively. Each mechanism includes a lifting drive module, a second mounting frame, a front heat sealing module, a rear heat sealing module, and a transverse sealing drive module. The punching mechanism includes a second follow-up lifting module, a third mounting frame, a front cutter module, a rear cutter module, and a cutter drive module. The second follow-up lifting module drives the front and rear cutter modules to move up and down. This invention can perform two transverse sealings on the strip packaging, can alternately pull the film, can follow the longitudinal sealing and punching, can improve production speed and strip packaging quality, and has a compact overall structure.

Description

Technical Field

[0001] This invention relates to the field of packaging equipment technology, and more particularly to a multi-row strip packaging machine. Background Technology

[0002] Strip packaging machines are mainly used for packaging granular, powdered, and liquid materials. The main processes include conveying the packaging film, color mark detection, strip packaging guidance and forming, sealing the longitudinal and transverse edges of the strip packaging, material filling, strip packaging segmentation, easy-tear cutting, and rejection of defective products. Strip packaging machines can package a single row of strips at a time or produce multiple rows simultaneously. Multi-row strip packaging machines are suitable for producing small strips. However, multi-row machines often suffer from uneven stress on each strip, resulting in some strips being subjected to excessive stress and deforming, while others are subjected to insufficient stress, failing to fully stretch the film and seal horizontally. This leads to poor sealing, incomplete cutting, and adhesion, among other problems. The number of rows in a multi-row machine is limited, affecting production efficiency. Existing single-row or multi-row strip packaging machines typically have fixed longitudinal sealing and cutting mechanisms, meaning they must remain stationary during longitudinal sealing and cutting. They also generally only have one transverse sealing mechanism, which pulls the film and performs the transverse sealing. When this transverse sealing mechanism rises to its return position, the strip package lacks downward momentum and remains essentially stationary, thus affecting production speed. Furthermore, a single transverse sealing mechanism can only perform one transverse seal, making it difficult to guarantee the seal of the strip package. Simultaneously, the film feeding mechanism often suffers from uncontrollable film tension, resulting in inconsistent strip package length accuracy and impacting final product quality. The film feeding mechanism also wastes film by failing to feed the remaining portion at the tail end, leading to inefficient use and wasted film. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a multi-row strip packaging machine with a compact structure that can improve production speed and product quality, and can be used for the production of liquid strip packaging.

[0004] This invention is achieved through the following technical solution:

[0005] A multi-row strip packaging machine includes a first frame and a film feeding mechanism, a color mark detection mechanism, a longitudinal sealing mechanism, a first transverse sealing mechanism, a second transverse sealing mechanism, and a punching mechanism mounted on the first frame. The film feeding mechanism is used to convey packaging film. The color mark detection mechanism is located on the conveying path of the packaging film and is used to detect color marks on the packaging film. The longitudinal sealing mechanism, the first transverse sealing mechanism, the second transverse sealing mechanism, and the punching mechanism are arranged sequentially from top to bottom along the first frame. Strips are formed in the longitudinal sealing mechanism and, as the strips descend, the longitudinal edges of the strips are longitudinally sealed. The first and second transverse sealing mechanisms are parallel to each other and are used to perform the first and second transverse sealing of the strips, respectively. They can heat-seal longitudinal and transverse lines at the joints of the strips, respectively. The two transverse sealing mechanisms can alternately pull the film. The punching mechanism can cut the strips as they descend.

[0006] The present invention may also include a liquid metering mechanism connected to a longitudinal sealing mechanism, which delivers accurately metered liquid to the injection pipe in the longitudinal sealing mechanism for filling in the strip package for use in the production of liquid strip packages.

[0007] Compared with the prior art, the beneficial effects of this invention are as follows: (1) Two sets of horizontal seals are set to perform two horizontal seals on the strip package, which improves the sealing performance of the horizontal seals. The two sets of horizontal seals can alternately pull the strip package downwards. Compared with a single set of horizontal seals, the time for the horizontal seals to rise and return to their original position is saved. The heat sealing and film pulling can be performed without interruption, which improves the production speed. Moreover, the two sets of horizontal seals can ensure that there is always one set of horizontal seals clamping the strip package, avoiding inaccurate heat sealing position due to strip package shaking or twisting, and preventing the non-heat sealing part from contacting the heat sealing block due to strip package shaking, which affects the appearance of the strip package and improves the heat sealing quality; (2) Follow-up lifting modules are set on both the longitudinal sealing mechanism and the punching mechanism, so that the strip package is longitudinally sealed and cut at the same time as it is pulled downwards. In conjunction with the two sets of horizontal sealing mechanisms, the strip package can run continuously throughout the entire production process. The pause increases production speed and avoids the pulling problem caused by sudden start-up during the production of strip packages, or the uneven and irregular arrangement of strip packages due to stacking, which affects the appearance after heat sealing and punching, thus improving the quality of strip packages; (3) The main power modules of the first horizontal sealing mechanism, the second horizontal sealing mechanism and the punching mechanism all adopt ball spline structure, so that the servo motor can be installed outside these mechanisms, and the drive components such as the servo motor can be raised and lowered without these mechanisms, which greatly reduces the lifting load of the two horizontal sealing parts and the punching parts, and reduces the energy load and equipment cost; (4) The drive parts of the first horizontal sealing mechanism, the second horizontal sealing mechanism and the punching mechanism drive the opposite functional modules to move synchronously to approach each other through the two linkage structure, and can control the two opposite functional modules, such as two The impact force between the heat-sealing blocks and the two punching blades improves both the heat-sealing and punching effects. The unique structural design, including the two-link structure, linkage frame, guide rod, and two sets of drives, ensures consistent force on each heat-sealing block mounted on the two horizontal sealing frames for the horizontal sealing mechanism. This avoids problems caused by uneven force distribution, such as incomplete heat sealing in some packages, leaving gaps in the seal, or damage to some heat-sealing blocks due to excessive impact or clamping force, resulting in broken packages or overheating. For the punching mechanism, it avoids problems caused by uneven force distribution on the cutters, such as incomplete punching in some packages, leaving packages stuck together, waste edges adhering to the packages, or severe wear on some cutters due to excessive impact. This design is suitable for multi-row packages. (5) The longitudinal sealing mechanism is equipped with two longitudinal sealing clamps with lever structure, and the two longitudinal sealing clamps are driven to approach each other by a cam, so that the two hot blocks press the longitudinal edge of the strip package for longitudinal sealing. The lever structure can make the two hot blocks move synchronously to approach or move away, and the opening is larger, which can move away from the strip package film and avoid scalding the strip package. The cam drive structure can make the overall structure compact and convenient to be arranged side by side on a multi-row strip package machine. The structure of the triangular push block can adjust the pressing force during longitudinal sealing by adjusting the stroke of the push block, which is convenient to use. (6) The longitudinal sealing mechanism, the first horizontal sealing mechanism, the second horizontal sealing mechanism and the punching mechanism are arranged from top to bottom. They cooperate with each other through the lifting module, so that the overall structure is reasonable and compact, saving equipment space.(7) The film feeding mechanism is equipped with two sets of drives, one for feeding the film and the other for pulling the film. The film feeding is more stable, and the buffer component reduces the difference between the two sets of drives and the unstable tension that may occur during film feeding, which may cause the packaging film to be sometimes tight and sometimes loose. This avoids difficulty in controlling the strip length and improves the accuracy of the strip length. At the same time, it can make the packaging film on the film feeding roller completely used up and smoothly connect to the next film roll without wasting packaging film. (8) The color mark detection adjustment component can adjust the position of the color mark photoelectric sensor along the length of the packaging film, so as to adapt to the production of strips of different lengths. The color mark detection adjustment component is equipped with a film pressure plate, so that the packaging film can be flattened and not curled during color mark detection, further improving the accuracy of color mark detection, improving the accuracy of strip length control, and improving product quality. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention.

[0009] Figure 2 This is a schematic diagram of the liquid metering mechanism in an embodiment of the present invention.

[0010] Figures 3-6 These are side and partial structural schematic diagrams of an embodiment of the present invention.

[0011] Figures 7-9 These are three-dimensional, front, and partial structural schematic diagrams of the film feeding mechanism in an embodiment of the present invention.

[0012] Figures 10-13 The images shown are a top view, a partial structural view, and a three-dimensional structural diagram of the color mark detection mechanism in an embodiment of the present invention. Figure 14 , Figure 15 These are schematic diagrams of the three-dimensional and side structures of the longitudinal sealing mechanism in an embodiment of the present invention.

[0013] Figures 16-19 This is a schematic diagram of the longitudinal sealing module in the open state of the longitudinal sealing mechanism in an embodiment of the present invention.

[0014] Figure 20 , Figure 21 This is a schematic diagram of the longitudinal sealing module clamping state in an embodiment of the present invention.

[0015] Figures 22-24 These are perspective, front, and side sectional views of the first and second horizontal sealing mechanisms in an embodiment of the present invention.

[0016] Figures 25-27 This is a partial structural diagram of the first horizontal sealing mechanism in an embodiment of the present invention.

[0017] Figure 28 This is a schematic diagram illustrating the working principle of the first horizontal sealing mechanism and the second horizontal sealing mechanism cooperating in an embodiment of the present invention.

[0018] Figures 29-32 This is a schematic diagram of part or the whole structure of the punching mechanism in an embodiment of the present invention.

[0019] Figures 33-36 This is a schematic diagram showing the interaction between the front cutter and the rear cutter on the punching mechanism in an embodiment of the present invention.

[0020] Reference numerals: 1-Liquid metering mechanism; 2-First frame; 3-Film feeding mechanism; 4-Color mark detection mechanism; 5-Longitudinal sealing mechanism; 6-First transverse sealing mechanism; 7-Second transverse sealing mechanism; 8-Punching mechanism; 9-Packaging film; 91-Color mark; 11-Second frame; 12-Storage tank; 13-Metering module; 14-Main liquid pipe; 31-Film feeding roller; 32-Film splicing platform; 33-Traction roller; 34-Buffer assembly; 35-Tensioning assembly; 36-Guide roller; 37-Film detection photoelectric sensor; 341-Swing rod; 342-Buffer roller; 3411-Main rod; 3412-Support rod; 351-Handwheel; 352-Screw nut pair; 353-Tensioning roller; 41-Adjusting seat; 42-Color mark photoelectric sensor; 43-Adjusting component; 44-Mounting plate ; 45-Membrane pressure plate; 46-Pressure assembly; 411-Adjusting plate; 412-Elongated groove; 431-Adjusting motor; 432-Guide rod; 433-Screw; 434-Drive nut; 4321-Length scale; 441-Fixing block; 461-Pressure roller; 462-Flattening roller; 463-Elastic element; 51-Strip guide forming module; 52-First follow-up lifting module; 53-Longitudinal sealing module; 54-First mounting frame; 21-First slide rail; 521-Third drive motor; 522-First driving wheel; 523-First driven wheel; 524-First toothed belt; 531-Fixing frame; 532-Cylinder; 533-Push block; 534-First longitudinal sealing clamping block; 535-First heating block; 536-Second longitudinal sealing clamping block; 537-Second heating block; 538-Return spring; 5311-Rotating shaft; 5341-First roller; 5342-First connecting post; 5343-First protrusion; 5361-Second roller; 5362-Second connecting post; 5351-First heating tube; 5371-Second heating tube; 541-First slider; 61-Lifting drive module; 62-Second mounting bracket; 63-Horizontal sealing drive module; 64-Front horizontal sealing frame; 65-Front heat sealing block; 66-Rear horizontal sealing frame; 67-Rear heat sealing block; 68-Second slider; 22-Second slide rail; 611-Fourth drive motor; 612-First transmission shaft; 613-Second driving wheel; 614-Second toothed belt; 615-Second driven wheel; 631-First drive motor; 632-First splined shaft; 633-First outer cylinder assembly; 634-Front sealing link structure; 635-Rear sealing link structure; 636-First linkage frame; 637-First guide rod; 638-Third link structure; 6341-First front sealing link; 6342-Second front sealing link; 6351-First rear sealing link; 6352-Second rear sealing link; 6381-First transverse sealing drive link; 6382-Second transverse sealing drive link; 81-Third mounting bracket; 82-Front cutter module; 83-Rear cutter module; 84-Cutter drive module; 85-Pack support module; 86-Second follow-up lifting module; 811-Third slider; 821-Front cutter holder; 822-Front cutter; 831-Rear cutter holder; 832-Rear cutter;8221-Front cutter holder; 8222-Protruding edge; 8223-Guide strip; 8224-Easy-tear blade; 8321-Rear cutter holder; 8322-Blade; 8323-Guide groove; 8324-Easy-tear blade groove; 8325-Slit; 841-Second drive motor; 842-Second splined shaft; 843-Second outer cylinder assembly; 844-Front cutter linkage structure; 845-Rear cutter linkage structure; 846-Second linkage frame; 847-Second guide rod; 8 48-Fourth linkage structure; 8441-First front cutter linkage; 8442-Second front cutter linkage; 8451-First rear cutter linkage; 8452-Second rear cutter linkage; 8481-First punching drive linkage; 8482-Second punching drive linkage; 851-Support plate; 852-Elastic component; 861-Fifth drive motor; 862-Second transmission shaft; 863-Second drive shaft; 864-Third drive pulley; 865-Third toothed belt; 866-Third driven pulley. Detailed Implementation

[0021] A multi-strip charter machine, such as Figure 1 , Figure 3 The system includes a first frame 2 and a film feeding mechanism 3, a color mark detection mechanism 4, a longitudinal sealing mechanism 4, a first transverse sealing mechanism 6, a second transverse sealing mechanism 7, and a punching mechanism 8, all mounted on the first frame 2. The film feeding mechanism 3 is used to convey the packaging film 9. The color mark detection mechanism 4 is located on the conveying path of the packaging film 9 and is used to detect the color mark 91 on the packaging film 9. Figures 4 to 6 The longitudinal sealing mechanism 4, the first transverse sealing mechanism 6, the second transverse sealing mechanism 7, and the punching mechanism 8 are arranged sequentially from top to bottom along the first frame 2. The multi-row strip packaging machine of this embodiment is used for the production of liquid strip packages, and therefore also includes a liquid metering mechanism 1 located outside the first frame 2.

[0022] 1. Liquid metering mechanism 1

[0023] like Figure 2 The liquid metering mechanism 1 is located outside the first frame 2 and includes a second frame 11, a storage tank 12, and metering modules 13. Several metering modules 13 are arranged side-by-side on the second frame 11. The storage tank 12 is located on the second frame 11 and is connected to the inlets of several metering modules 13 via a main liquid pipe 14. The outlets of several metering modules 13 are connected via pipes to the injection pipes in several strip-packing guiding and forming modules 51 on the longitudinal sealing mechanism 4. The structure of the metering module 13 can refer to the structure of the liquid metering tank in the applicant's prior art patent CN202210753042.7, and will not be described in detail here. Separating the liquid metering mechanism 1 from other mechanisms on the strip-packing machine prevents liquid leakage or cleaning from affecting other modules.

[0024] 2. Film feeding mechanism 3

[0025] like Figures 7 to 9 The film feeding mechanism 3 is used to transport packaging film 9 to subsequent processes. It includes a film feeding roller 31, a traction roller 33, and a buffer assembly 34. The film feeding roller 31 is used to transport packaging film 9 and is connected to a film feeding drive motor. The traction roller 33 and the buffer assembly 34 are arranged on the transport path of packaging film 9. The traction roller 33 is connected to a film pulling drive motor and is used to pull packaging film 9. The film feeding roller 31 and the traction roller 33 cooperate with each other to ensure that the packaging film 9 on the film feeding roller 31 is completely used up. That is, the film feeding roller 31 and the traction roller 33 feed film and pull film respectively, and cooperate with each other to deliver film smoothly. When the packaging film 9 on the film feeding roller 31 is about to be used up and loses tension, the traction roller 33 can pull the packaging film 9 that has lost tension until the packaging film 9 is used up. The tail end of the previous roll of packaging film 9 can be connected to the front end of the next roll of packaging film 9 so that the packaging film 9 can be completely used up and there is no waste of packaging film 9.

[0026] The buffer assembly 34 includes a swing arm 341, a swing motor, and a buffer roller 342. The swing arm 341 is swingably mounted on the frame. The swing motor is driven to one end of the swing arm 341 to drive the swing arm 341 to swing. At least one buffer roller 342 is mounted on the other end of the swing arm 341, that is, the shaft 5311 of the buffer roller 342 is rotatably mounted on the other end of the swing arm 341. The packaging film 9 passes around the buffer roller 342. The swing motor adjusts the tension of the packaging film 9 by controlling the swing of the swing arm 341. The swing motor controls its rotation angle through an encoder, thereby controlling the swing amplitude of the swing arm 341 and adjusting the position of the buffer roller 342. This avoids the packaging film 9 from being sometimes large and sometimes small due to the speed difference between the film feeding drive motor and the film pulling drive motor, resulting in inconsistent final lengths of the package and affecting product quality.

[0027] The structure and form of the rocker arm 341 can be designed according to actual conditions, and can be used as one implementation method, such as... Figure 9 The swing arm 341 includes an integrated main rod 3411 and a support rod 3412. The swing motor is driven by one end of the main rod 3411 to drive the main rod 3411 to swing. At least one support rod 3412 is provided on the other end of the main rod 3411, and a buffer roller 342 is installed at the end of each support rod 3412. There are two swing arms 341 arranged opposite each other. The swing motor is connected to a drive shaft. One end of each of the two swing arms 341 is connected to the two ends of the drive shaft, and the two ends of the buffer roller 342 are respectively installed on the other ends of the two swing arms 341.

[0028] The invention also includes at least one set of tensioning components 35, such as Figure 9This embodiment includes two sets of tensioning components 35, one above the other. Each set of tensioning components 35 includes a tensioning roller 353 and two sets of tension adjustment structures. The two sets of tension adjustment structures are arranged opposite each other. Each set of tension adjustment structures includes a handwheel 351 and a lead screw and nut assembly 352. The handwheel 351 is driven by the lead screw in the lead screw and nut assembly 352. The two ends of the tensioning roller 353 are respectively connected to the drive nuts 434 in the two sets of lead screw and nut assemblies 352. The handwheel 351 drives the nut 434 to move along the lead screw, thereby moving the tensioning roller 353 to control the tension force. This is generally used for equipment debugging before startup. The buffer assembly 34 is used for real-time adjustment during equipment operation, which is autonomously adjusted by the swing motor according to the operating conditions.

[0029] like Figure 8 The conveying path of the packaging film 9 is also equipped with a film-joining platform 32 and a film-detecting photoelectric sensor 37. The film-joining platform 32 has guide rollers 36 at both ends along the conveying direction of the packaging film 9. The packaging film 9 passes around the film-joining platform 32 via the guide rollers 36, and the two rolls of packaging film 9 are automatically or manually joined together on the film-joining platform 32. In this embodiment, the film-joining platform 32 is located below the film-feeding roller 31, close to the film-feeding roller 31. The film-detecting photoelectric sensor 37 is also located close to the film-feeding roller 31 and is used to detect whether the packaging film 9 on the film-feeding roller 31 has been used up.

[0030] 3. Color mark testing agency 4

[0031] like Figures 10 to 13 The color mark detection mechanism 4 is set on the conveying path of the packaging film 9. The color mark detection mechanism 4 includes an adjustment seat 41, a color mark photoelectric sensor 42, and an adjustment component 43. The color mark photoelectric sensor 42 is fixed on the adjustment seat 41 and is used to detect the color mark 91 on the packaging film 9. It transmits the detection signal to the subsequent longitudinal sealing module 53, transverse sealing module, and punching module to control the operation of these modules, thereby controlling the length of the strip package. The adjustment component 43 is connected to the adjustment seat 41 to drive the adjustment seat 41 to move along the length direction (conveyor direction) of the packaging film 9 and adjust the relative position of the color mark photoelectric sensor 42 and the packaging film 9 to adapt to the production of strip packages of different length specifications.

[0032] The function of the adjusting component 43 is to adjust the position of the adjusting seat 41. It can be any existing mechanism or form, such as a structure driven by a cylinder 532. In this embodiment, the adjusting component 43 includes an adjusting motor 431, a guide rod 432, a screw 433, and a drive nut 434. The guide rod 432 and the screw 433 are arranged parallel to each other on the frame along the length direction of the packaging film 9. That is, the guide rod 432 and the screw 433 are parallel to the length direction of the packaging film 9. The adjusting motor 431 is driven by the screw 433. The drive nut 434 is screwed onto the screw 433. The adjusting seat 41 is fixedly connected to the drive nut 434. The adjusting motor 431 drives the adjusting seat 41 to move along the guide rod 432 (the length direction of the packaging film 9) through the screw 433 and the drive nut 434. Alternatively, the driving motor can be replaced by a handle or handwheel 351 to manually drive the screw 433 to rotate. For ease of adjustment, the guide rod 432 is also provided with length markings 4321.

[0033] In this embodiment, a membrane pressure plate 45 is provided above the color mark photoelectric sensor 42. The membrane pressure plate 45 is used to flatten the edge of the packaging film 9 so that the color mark photoelectric sensor 42 can detect the color mark 91 at the edge of the film and avoid the influence of the winding of the packaging film 9 on the detection of the color mark 91. The membrane pressure plate 45 is fixed on the adjustment seat 41.

[0034] The adjusting base 41 includes an adjusting plate 411 extending along the width direction of the packaging film 9. The adjusting plate 411 has an elongated groove 412 extending along the width direction of the packaging film 9. The color mark photoelectric sensor 42 is mounted on a mounting plate 44. The mounting plate 44 is movably mounted on the adjusting plate 411 via the elongated groove 412, allowing the color mark photoelectric sensor 42 to be adjusted along the width direction of the packaging film 9 to accommodate different width specifications. Specifically, a fixing block 441 is provided on the mounting plate 44. The fixing block 441 passes through the elongated groove 412 and is fixed to the adjusting plate 411 by bolts. The fixing block 441 can move along the elongated groove 412 to adjust its installation position.

[0035] In this embodiment, as Figure 11The color mark detection mechanism 4 is equipped with pressing components 46 at both the front and rear ends along the conveying direction of the packaging film 9. The two sets of pressing components 46 are used to cooperate with each other to tension and flatten the packaging film 9, so as to facilitate the color mark detection mechanism 4 to accurately detect the color mark 91 on the packaging film 9. Each set of pressing components 46 includes a pressing roller 461, a flattening roller 462 and an elastic element 463. The pressing roller 461 is positioned above the flattening roller 462 and presses it down through the elastic element 463. On the flattening roller 462, the packaging film 9 is wrapped around the pressing roller 461 and the flattening roller 462 respectively, and the color mark detection mechanism 4 is located between the two flattening rollers 462 on the two sets of pressing components 46. The elastic element 463 is connected to both ends of the pressing roller 461 to control the pressing force between the pressing roller 461 and the flattening roller 462, so that the packaging film 9 between the two flattening rollers 462 is appropriately tight, not too tight and stretching the packaging film 9, nor too loose, ensuring the accuracy of the strip length. The elastic element 463 includes a spring in its structure, which is used for cushioning.

[0036] 4. Vertical sealing mechanism 4

[0037] like Figures 14 to 21 The longitudinal sealing mechanism 4 includes a strip package guiding and forming module 51, a first follow-up lifting module 52, and a longitudinal sealing module 53. Several strip package guiding and forming modules 51 are horizontally and side-by-side fixed on the first frame 2 (fixed and stationary; the packaging film 9 is pulled by the first horizontal sealing mechanism 6 and the second horizontal sealing mechanism 7). The strip package guiding and forming module 51 is used to guide the packaging film 9 into a strip package shape and generate longitudinal edges. It can refer to existing technology, such as the relevant structure of the longitudinal sealing material guiding component in the applicant's prior patent CN202210753054.X. The first follow-up lifting module 52 is installed on the first frame 2, and several longitudinal sealing modules 53 are horizontally and side-by-side installed on the first mounting frame 54. The number of longitudinal sealing modules 53 is equal to the number of strip package guiding and forming modules 51, and their positions are one-to-one. The first mounting frame 54 is connected to the first follow-up lifting module 52. Under the drive of the first follow-up lifting module 52, the first mounting frame 54 drives several sets of longitudinal sealing modules 53 to rise and fall synchronously with the strip package, and longitudinally seals the longitudinal edges on the strip package during the descent.

[0038] In this embodiment, the longitudinal sealing module 53 has a compact structure, such as... Figure 14Multiple sets of longitudinal sealing modules 53 can be arranged side-by-side along the first mounting frame 54 to accommodate the production of multi-row packages. Specifically, the fixing frames 531 on several sets of longitudinal sealing modules 53 are fixed side-by-side on the first mounting frame 54. The first mounting frame 54 is connected to a follow-up lifting module, and the first mounting frame 54 drives the several sets of longitudinal sealing modules 53 to move up and down synchronously under the drive of the follow-up lifting module. A first slider 541 is provided on the first mounting frame 54, and a first slide rail 21 adapted to the first slider 541 is provided on the first frame 2. The first mounting frame 54 moves up and down along the first frame 2 through the cooperation of the first slider 541 and the first slide rail 21.

[0039] The longitudinal sealing module 53 includes a fixing frame 531, a longitudinal sealing drive assembly, a first longitudinal sealing clamp 534, a first heating block 535, a second longitudinal sealing clamp 536, and a second heating block 537. The longitudinal sealing drive assembly is mounted on the fixing frame 531. The first longitudinal sealing clamp 534 and the second longitudinal sealing clamp 536 are arranged opposite to each other, and their middle positions are mounted on the fixing frame 531 via a pivot 5311, so that the first longitudinal sealing clamp 534 and the second longitudinal sealing clamp 536 form a lever structure with the pivot 5311 as the fulcrum. The structure comprises a first longitudinal sealing block 534 and a second longitudinal sealing block 536, each with a first end and a second end respectively, with the pivot 5311 as the dividing point. The first end of the first longitudinal sealing block 534 is opposite to the first end of the second longitudinal sealing block 536, and the second end of the first longitudinal sealing block 534 is opposite to the second end of the second longitudinal sealing block 536. When the first ends of the first longitudinal sealing block 534 and the first ends of the second longitudinal sealing block 536 move away from each other, the second ends of the first longitudinal sealing block 534 and the second ends of the second longitudinal sealing block 536 move closer together (e.g., ...). Figure 20 , Figure 21 When the first end of the first longitudinal sealing block 534 and the first end of the second longitudinal sealing block 536 approach each other, the second end of the first longitudinal sealing block 534 and the second end of the second longitudinal sealing block 536 separate from each other (e.g. Figures 16 to 19 The first hot-pressing block 535 is fixed to the second end of the first longitudinal sealing clamp 534, and the second hot-pressing block 537 is fixed to the second end of the second longitudinal sealing clamp 536. The longitudinal sealing drive assembly is disposed at the first ends of the first longitudinal sealing clamp 534 and the second longitudinal sealing clamp 536, and is used to drive the first ends of the first longitudinal sealing clamp 534 and the first ends of the second longitudinal sealing clamp 536 away from each other, so that the second ends of the first longitudinal sealing clamp 534 and the second ends of the second longitudinal sealing clamp 536 move closer to each other, and the first hot-pressing block 535 and the second hot-pressing block 537 move closer to each other to longitudinally seal the package (e.g., Figure 20 , Figure 21 Heating tubes are provided in both the first heating block 535 and the second heating block 537, namely the first heating tube 5351 and the second heating tube 5371.

[0040] In order to combine the first longitudinal sealing block 534 and the second longitudinal sealing block 536 to form a lever structure with one end open and the other end closed, in this embodiment, as follows: Figure 18 , Figure 21 Both the first longitudinal sealing block 534 and the second longitudinal sealing block 536 have outwardly extending protrusions at their midpoints, namely the first protrusion 5343 and the second protrusion, respectively. The rotating shaft 5311 is connected to the protrusions, and the protrusions on the first longitudinal sealing block 534 and the second longitudinal sealing block 536 are mounted on the same rotating shaft 5311. The first longitudinal sealing block 534 and the second longitudinal sealing block 536 can be designed with a bent structure at a certain angle.

[0041] The longitudinal sealing module 53 of the present invention can be raised and lowered under the drive of the first follow-up lifting module 52. It performs longitudinal sealing on the longitudinal edges as the strip packaging film descends, avoiding interruptions in the strip packaging production process and improving production speed. The structure of the longitudinal sealing module 53 allows the two heat-sealing blocks to open away from each other and the strip packaging film when not heat-sealed, with a large opening that minimizes the impact on the strip packaging film, avoiding heat radiation damage to the strip packaging, and resulting in a compact overall structure.

[0042] The function of the longitudinal sealing drive assembly is to move the first end of the first longitudinal sealing clamp 534 and the first end of the second longitudinal sealing clamp 536 away from each other. This can be achieved by using a cylinder 532 to push both ends to open them. In this embodiment, the longitudinal sealing drive assembly includes a cylinder 532 and a push block 533. The cylinder 532 is mounted on the first frame 2, and the push block 533 is fixed on the telescopic end of the cylinder 532 and located at the middle position between the first end of the first longitudinal sealing clamp 534 and the first end of the second longitudinal sealing clamp 536. Under the push of the cylinder 532, the push block 533 enters between the first end of the first longitudinal sealing clamp 534 and the first end of the second longitudinal sealing clamp 536, thereby moving the first end of the first longitudinal sealing clamp 534 and the first end of the second longitudinal sealing clamp 536 away from each other, and bringing the first heating block 535 and the second heating block 537 closer together to clamp and seal the longitudinal seal.

[0043] As one implementation method, such as Figure 18 , Figure 19 In this embodiment, the front end of the push block 533 has a triangular cross-section, and the two sides of the front triangle are in contact with the first end of the first longitudinal sealing block 534 and the first end of the second longitudinal sealing block 536, respectively. As the cylinder 532 pushes, the first end of the first longitudinal sealing block 534 and the first end of the second longitudinal sealing block 536 slide along the two sides of the front triangle of the push block 533 and gradually move away from each other. This structure makes the movement of the first longitudinal sealing block 534 and the second longitudinal sealing block 536 smooth, and the clamping force between the first hot plate 535 and the second hot plate 537 can be adjusted by adjusting the movement stroke of the push block 533.

[0044] To smoothly push the push block 533, rollers are installed on the first end of the first longitudinal sealing block 534 and the first end of the second longitudinal sealing block 536, respectively, which can roll in contact with the two sides of the front triangle of the push block 533. These rollers are the first roller 5341 and the second roller 5361. The two sides of the front triangle of the push block 533 roll with the first roller 5341 and the second roller 5361, causing the first end of the first longitudinal sealing block 534 and the first end of the second longitudinal sealing block 536 to gradually move away from each other. In this embodiment, connecting posts are provided on both the first longitudinal sealing block 534 and the second longitudinal sealing block 536, respectively, and the first roller 5341 and the second roller 5361 are respectively mounted on the first connecting post 5342 and the second connecting post 5362.

[0045] To allow the first hot-sealing block 535 and the second hot-sealing block 537 to separate after heat sealing, a return structure is required, such as an elastic component 852 like a tension spring at the pivot 5311. In this embodiment, a return spring 538 is connected between the first end of the first longitudinal sealing block 534 and the first end of the second longitudinal sealing block 536. The return spring 538 uses elastic restoring force to bring the first end of the first longitudinal sealing block 534 and the first end of the second longitudinal sealing block 536 closer together, thereby causing the second end of the first longitudinal sealing block 534 and the second end of the second longitudinal sealing block 536 to move away from each other, thus separating the first hot-sealing block 535 and the second hot-sealing block 537 and completing the longitudinal sealing.

[0046] The first follow-up lifting module 52 is used to drive the vertical sealing module 53 to rise and fall. It can be a commonly used lifting drive structure, such as a motor-driven lead screw structure. In this embodiment, the first follow-up lifting module 52 is a drive structure that drives a motor to drive a synchronous belt, specifically, such as... Figure 15 The system includes a third drive motor 521, a first drive wheel 522, a first driven wheel 523, and a first toothed belt 524. The third drive motor 521, the first drive wheel 522, and the first driven wheel 523 are mounted on the first frame 2. The two first driven wheels 523 are arranged vertically opposite each other. The first toothed belt 524 is wrapped around the first drive wheel 522 and the first driven wheel 523. The fixing frame 531 is fixed on the vertical gear belt between the two first driven wheels 523. The third drive motor 521 drives the fixing frame 531 on the first toothed belt 524 to move up and down, thereby driving the longitudinal sealing module 53 to move up and down along the first frame 2.

[0047] 5. First horizontal sealing mechanism 6 and second horizontal sealing mechanism 7

[0048] like Figures 22 to 27The first horizontal sealing mechanism 6 and the second horizontal sealing mechanism 7 are parallel to each other, and are used to perform the first and second horizontal sealing on the strip package respectively, and alternately pull the film (or strip package); the first horizontal sealing mechanism 6 and the second horizontal sealing mechanism 7 have the same structure. Taking the first horizontal sealing mechanism 6 as an example, it includes a lifting drive module 61, a second mounting frame 62, a front heat sealing module, a rear heat sealing module, and a horizontal sealing drive module 63. The lifting drive module 61 is mounted on the first frame 2, and the front heat sealing module and the rear heat sealing module are mounted opposite each other on the second mounting frame 62. The second mounting frame 62 is connected to the lifting drive module 61. The second mounting frame 62 is lifted and lowered under the drive of the lifting drive module 61, which drives the front heat sealing module and the rear heat sealing module to lift and lower together, thereby pulling down a section of the strip package; The front heat sealing module includes a front horizontal sealing frame 64 and a plurality of front heat sealing blocks 65 arranged side by side on the front horizontal sealing frame 64. The rear heat sealing module includes a rear horizontal sealing frame 66 and a plurality of rear heat sealing blocks 67 arranged side by side on the rear horizontal sealing frame 66. The front horizontal sealing frame 64 and the rear horizontal sealing frame 66 are arranged opposite to each other. The number of front heat sealing blocks 65 and the number of rear heat sealing blocks 67 are equal and their positions are opposite to each other so that the front heat sealing blocks 65 and the rear heat sealing blocks 67 can cooperate with each other to clamp the strip package and perform horizontal sealing on the strip package. The horizontal sealing drive module 63 is connected to at least one of the front horizontal sealing frame 64 and the rear horizontal sealing frame 66 to drive at least one of the front horizontal sealing frame 64 and the rear horizontal sealing frame 66 to move linearly, so that the front heat sealing blocks 65 and the rear heat sealing blocks 67 move closer to each other to clamp and pull the strip package and perform horizontal sealing on the strip package.

[0049] The first horizontal sealing module and the second horizontal sealing module have the same structure. Taking the first horizontal sealing module as an example, it includes a lifting drive assembly, a second mounting bracket 62, a front heat sealing module, a rear heat sealing module, and a horizontal sealing drive module 63. The positions of the lifting drive assembly, the second mounting bracket 62, the front heat sealing module, the rear heat sealing module, and the horizontal sealing drive module 63 on the first horizontal sealing module and the second horizontal sealing module are respectively opposite to each other. That is, the positions of the lifting drive assembly, the second mounting bracket 62, the front heat sealing module, the rear heat sealing module, and the horizontal sealing drive module 63 on the first horizontal sealing module are respectively opposite to the positions of the lifting drive assembly, the second mounting bracket 62, the front heat sealing module, the rear heat sealing module, and the horizontal sealing drive module 63 on the second horizontal sealing module.

[0050] The lifting drive assembly is mounted on the first frame 2. The front heat sealing module and the rear heat sealing module are mounted opposite each other on the second mounting frame 62. The second mounting frame 62 is connected to the lifting drive assembly. The second mounting frame 62 is lifted and lowered under the drive of the lifting drive assembly, which drives the front heat sealing module and the rear heat sealing module to lift and lower together, thereby pulling down a strip of film. The front heat sealing module includes a front horizontal sealing frame 64 and a plurality of front heat sealing blocks 65 arranged side by side on the front horizontal sealing frame 64. The rear heat sealing module includes a rear horizontal sealing frame 66 and a plurality of rear heat sealing blocks 67 arranged side by side on the rear horizontal sealing frame 66.

[0051] The horizontal sealing drive module 63 includes a first drive motor 631, a first ball spline structure, and a first connecting rod structure. The first drive motor 631 is mounted on the first frame 2. The first ball spline structure includes a first spline shaft 632 and a first outer cylinder assembly 633 sleeved on the first spline shaft 632, capable of linear and rotary motion. The first spline shaft 632 is vertically arranged on the first frame 2, and the first outer cylinder assembly 633 is mounted on the second mounting bracket 62. The first drive motor 631 is driven by the first spline shaft 632 to drive the first spline shaft 632 to rotate, thereby driving the first outer cylinder assembly 633 to rotate. Simultaneously, the first outer cylinder assembly 633 and the second mounting bracket 62 rotate. The frame 62 can be raised and lowered along the first spline shaft 632; the front horizontal sealing frame 64 and the rear horizontal sealing frame 66 are arranged opposite each other, and the number of front heat sealing blocks 65 and the rear heat sealing blocks 67 are equal and their positions are opposite each other so that the front heat sealing blocks 65 and the rear heat sealing blocks 67 can cooperate with each other to clamp the strip package and perform horizontal sealing on the strip package. The first outer cylinder assembly 633 is connected to at least one of the front horizontal sealing frame 64 and the rear horizontal sealing frame 66 through the first connecting rod structure. The rotation of the first outer cylinder assembly 633 drives at least one of the front horizontal sealing frame 64 and the rear horizontal sealing frame 66 to move linearly through the first connecting rod structure, so that the front horizontal sealing frame 64 and the rear horizontal sealing frame 66 move closer or further away from each other, so that the front heat sealing blocks 65 and the rear heat sealing blocks 67 move closer to each other to perform horizontal sealing on the strip package.

[0052] Setting up two horizontal sealing mechanisms (first horizontal sealing mechanism 6 and second horizontal sealing mechanism 7) to horizontally seal the same position on the strip package can improve the sealing quality. Simultaneously, the alternating film pulling of the two horizontal sealing mechanisms can increase speed. In one implementation, the heat-sealing surfaces of the front heat-sealing block 65 and the rear heat-sealing block 67 on the first horizontal sealing module have a longitudinally textured structure, used to heat-seal longitudinal lines on the strip package; the heat-sealing surfaces of the front heat-sealing block 65 and the rear heat-sealing block 67 on the second horizontal sealing module have a horizontally textured structure, used to heat-seal horizontal lines on the strip package immediately adjacent to the longitudinal lines heat-sealed by the first horizontal sealing module. The horizontal and longitudinal lines are as close as possible; the combination of longitudinal and horizontal lines enhances the sealing performance. The horizontal lines are located below the longitudinal lines. After the strip package is cut, the horizontal lines are located at the ends of the strip package, while the longitudinal lines are close to the middle. The first and second horizontal sealing modules alternately pull the strip package downwards, saving the time for the horizontal sealing modules to rise and return to their original position, thus increasing production speed. Therefore, each component on the first and second horizontal sealing modules needs to operate independently.

[0053] The first ball spline structure allows the first drive motor 631 to be fixedly mounted on the first frame 2 instead of the second mounting bracket 62. Power can be transmitted via the first spline shaft 632 to drive the front and rear heat-sealing modules to move linearly for heat sealing. Simultaneously, the second mounting bracket 62 can move the front and rear heat-sealing modules up and down. The external mounting of the first drive motor 631 significantly reduces the load on the second mounting bracket 62, easily achieving lifting and lowering. In this embodiment, the horizontal sealing drive module 63 has two sets arranged side-by-side. These two sets of horizontal sealing drive modules 63 jointly drive the front and rear heat-sealing modules to move closer or further apart, adapting to equipment with a large number of strips and ensuring even force distribution. In this embodiment, the strips are arranged in 12 rows side-by-side. Using the aforementioned first ball spline structure as the driving component of the horizontal sealing drive module 63, both first drive motors 631 can be mounted outside the second mounting bracket 62, further reducing the lifting load. In this embodiment, the second mounting bracket 62, the front horizontal sealing bracket 64, and the rear horizontal sealing bracket 66 are all equipped with hollow structures to further reduce the overall lifting weight. The hollow holes can also be used to remove scrap edges from the cutting process. A scrap conveyor belt is installed below, and the fallen scrap edges are discharged on the scrap conveyor belt. Practice has proven that, compared with the traditional drive structure, the lifting load can be reduced by more than 2 / 3 using the above structure.

[0054] For the transverse sealing drive module 63, the first outer cylinder assembly 633 is connected to at least one of the front transverse sealing frame 64 and the rear transverse sealing frame 66 through the first connecting rod structure, so that at least one of the two transverse sealing frames moves linearly. In this way, the two transverse sealing frames can move closer or further apart from each other. It can be connected only to the front transverse sealing frame 64 to drive the front transverse sealing frame 64 to move linearly, or it can be connected only to the rear transverse sealing frame 66 to drive the rear transverse sealing frame 66 to move linearly, or it can be connected to both the front transverse sealing frame 64 and the rear transverse sealing frame 66 at the same time to drive both to move simultaneously.

[0055] In this embodiment, to improve the driving effect, the horizontal sealing drive module 63 drives the front horizontal sealing frame 64 and the rear horizontal sealing frame 66 to move synchronously. The specific structure is as follows: Figure 26 , Figure 27The second mounting bracket 62 is provided with a first guide hole, and a first guide rod 637 is inserted through the first guide hole (via a linear bearing). The first guide rod 637 can slide along the first guide hole. Both ends of the first guide rod 637 extend out of the first guide hole, namely the first end and the second end. The front transverse sealing frame 64 is fixed on the first end of the first guide rod 637. The rear transverse sealing frame 66 is slidably mounted on the first guide rod 637 and located between the second mounting bracket 62 and the front transverse sealing frame 64. A first linkage frame 636 is fixed on the second end of the first guide rod 637. The first linkage structure includes a front sealing linkage structure 634 and a rear sealing linkage structure 635. The first outer cylinder assembly 633 is connected to the rear transverse sealing frame 66 through the rear sealing linkage structure 635. The first outer cylinder assembly 633 is connected to the first linkage frame 636 through the front sealing linkage structure 634. The first linkage frame 636 pushes the front transverse sealing frame 64 to move through the first guide rod 637. This structure allows the front and rear heat-sealing modules to be driven synchronously through the same drive module. The two heat-sealing blocks can work together in conjunction, improving drive efficiency. It also allows the two heat-sealing modules to be located on the same side of the drive module, avoiding issues such as strip-packing avoidance and structural bulk caused by the drive module being located above, below, or at both ends of the heat-sealing modules. In this embodiment, there are two parallel first guide rods 637, passing through both ends of the second mounting bracket 62. The two sets of heat-sealing drive modules are located in the middle of the second mounting bracket 62, improving operational stability and resulting in a compact structure.

[0056] In one embodiment, the front sealing link structure 634 includes a first front sealing link 6341 and a second front sealing link 6342. One end of the first front sealing link 6341 is fixedly connected to the first outer cylinder assembly 633, and the other end is hinged to one end of the second front sealing link 6342. The other end of the second front sealing link 6342 is hinged to the first linkage frame 636. The rear sealing link structure 635 includes a first rear sealing link 6351 and a second rear sealing link 6352. One end of the first rear sealing link 6351 is fixedly connected to the first outer cylinder assembly 633, and the other end is hinged to one end of the second rear sealing link 6352. The other end of the second rear sealing link 6352 is hinged to the rear transverse sealing frame 66. The first front sealing link 6341 and the first rear sealing link 6351 are located on a straight line, that is, the first front sealing link 6341 and the first rear sealing link 6351 are respectively arranged on opposite sides of the first outer cylinder assembly 633. This drive structure allows the rear transverse sealing frame 66 and the first linkage frame 636 to move closer to or further apart from each other. The first linkage frame 636 and the front transverse sealing frame 64 are rigidly connected by the first guide rod 637. The two move in the same direction. However, since the first linkage frame 636 and the front transverse sealing frame 64 are located on both sides of the rear transverse sealing frame 66, when the rear transverse sealing frame 66 and the first linkage frame 636 move closer to each other, the rear transverse sealing frame 66 and the front transverse sealing frame 64 move further apart, and vice versa.

[0057] Since the linear movement distance of the rear transverse sealing frame 66 and the front transverse sealing frame 64 is not large, the rotation amplitude of the first spline shaft 632 is not large, and it is in a swinging state. Therefore, in this embodiment, the first drive motor 631 is driven and connected to the first spline shaft 632 through the third linkage structure 638. Compared with the method of directly connecting the first drive motor 631 to the first spline shaft 632, the spatial layout can be more reasonable. The two first drive motors 631 can be vertically arranged on the side of the first frame 2, and the drive motor on the lifting drive module 61 can be arranged horizontally. Specifically, the third linkage structure 638 includes a first transverse sealing drive linkage 6381 and a second transverse sealing drive linkage 6382. One end of the first transverse sealing drive linkage 6381 is connected to the first drive motor 631, and the other end is hinged to one end of the second transverse sealing drive linkage 6382. The other end of the second transverse sealing drive linkage 6382 is fixedly connected to the first spline shaft 632.

[0058] The lifting drive module 61 is used to drive the second mounting bracket 62 to rise and fall. It can be a servo motor driven by a lead screw. For better space utilization, in this embodiment, the lifting drive module 61 is a servo motor driving a synchronous belt. Specifically, the lifting drive module 61 includes a fourth drive motor 611, a first transmission shaft 612, a second driving pulley 613, a second driven pulley 615, and a second toothed belt 614. The fourth drive motor 611 is mounted on the first frame 2, and the first transmission shaft 612 is horizontally mounted on the first frame 2. The fourth drive motor 611 and the first transmission shaft 612 are connected... A 12-speed transmission connection is established. The second drive wheel 613 is mounted on the first drive shaft 612 and rotates with it. The second toothed belt 614 wraps vertically around the second drive wheel 613 and the second driven wheel 615. The second mounting bracket 62 is fixed to the second toothed belt 614. The fourth drive motor 611 drives the second drive wheel 613 to rotate via the first drive shaft 612. The second drive wheel 613 drives the second toothed belt 614 to move, thereby causing the second mounting bracket 62 and its front and rear heat-sealing modules to rise and fall, so that the strip package can be pulled down while sealing horizontally. The second mounting bracket 62 is also provided with a second slider 68, and the first frame 2 is correspondingly provided with a second slide rail 22. The second mounting bracket 62 can rise and fall along the first frame 2 through the cooperation of the second slider 68 and the second slide rail 22.

[0059] To further simplify the mechanism, in this embodiment, the second driven wheel 615 on the first horizontal sealing module is rotatably mounted on the first drive shaft 612 on the second horizontal sealing module via bearings, eliminating the need for a separate mounting shaft for the second driven wheel 615. Alternatively, the second driven wheel 615 on the second horizontal sealing module can also be mounted on the first drive shaft 612 on the first horizontal sealing module via bearings, or it can be directly mounted on the first frame 2. In this embodiment, the same lifting drive module 61 includes two sets of parallel second driving wheels 613, second driven wheels 615, and second toothed belts 614. The second mounting bracket 62 is fixed to the two sets of second toothed belts 614.

[0060] Using the above-mentioned double horizontal sealing mechanism, such as Figure 28 The double horizontal sealing method includes the following steps:

[0061] S1. The second mounting bracket 62 of the first horizontal sealing module moves downward under the drive of the lifting drive module 61. During the downward movement of the front heat sealing module and the rear heat sealing module, the front heat sealing block 65 and the rear heat sealing block 67 on the first horizontal sealing module approach each other and clamp the first package under the drive of the horizontal sealing drive module 63. The package is then pulled downward by a length L1, and the first horizontal seal is performed on the first package. That is, the first horizontal seal is performed simultaneously during the downward pulling of the package. The heat sealing time must match the distance and speed of pulling the package. At the same time, the second mounting bracket 62 of the second horizontal sealing module moves upward to a distance L2 under the drive of the lifting drive module 61 and then stops moving upward.

[0062] S2. The second mounting bracket 62 of the second horizontal sealing module moves downward under the drive of the lifting drive module 61. During this process, as the front heat sealing module and the rear heat sealing module move downward, the front heat sealing block 65 and the rear heat sealing block 67 on the second horizontal sealing module move closer to each other under the drive of the horizontal sealing drive module 63. After clamping the Nth strip package, the first horizontal sealing module releases the first strip package (that is, its front heat sealing block 65 and the rear heat sealing block 67 move away from each other under the drive of the horizontal sealing drive module 63). The first horizontal sealing module begins to rise back to its original position. During this process, the second horizontal sealing module pulls the strip package downward. A section of length L2 is used, and a second horizontal seal is applied simultaneously at the position of the first horizontal seal on the Nth package. That is, the second horizontal seal is applied concurrently with the downward pulling of the package, and the heat sealing time must be matched to the distance and speed of pulling the package. After the first horizontal seal module clamps the next package (i.e., the next package to be sealed immediately adjacent to the first package), the second horizontal seal module releases the Nth package and then rises back to its original position, completing one horizontal seal (vertical lines + horizontal lines, two horizontal seals) on the Nth package. This horizontal seal position is the connection point between the upper and lower packages; a punching motion at the horizontal seal position can separate the upper and lower packages. At this point, the first package has only completed the first horizontal seal, and the second horizontal seal module will subsequently apply a second horizontal seal to the first package.

[0063] In the above steps, the first and second horizontal sealing modules operate in the same way. They both need to go through four steps: downward synchronization and horizontal sealing clamping (clamping the strip), pulling down the film (or pulling down the strip), horizontal sealing opening (releasing the strip), and rapid upward return. Each module completes one cycle of operation. The two horizontal seals cooperate with each other. When one horizontal seal moves downward, the other horizontal seal returns upward. However, the other horizontal seal only releases the strip after one horizontal seal clamps it. This ensures that there is always one horizontal sealing module clamping and fixing the strip, preventing the strip from shaking and ensuring accurate horizontal sealing position.

[0064] The sum of the strip length L1 pulled by the first horizontal sealing module and the strip length L2 pulled by the second horizontal sealing module equals the length L of a strip. L1 and L2 can be determined based on the heat sealing time of the two processes; they can be set to be the same or different. The downward movement speed of the first horizontal sealing module is equal to that of the second horizontal sealing module. This ensures that when the two horizontal sealing modules intersect, their downward movement is synchronized, preventing stretching of the strip film due to inconsistent speeds. The upward return speed of the two horizontal sealing modules can be faster than their downward movement speed, enabling rapid return. In this embodiment, the times for the four steps of the first horizontal sealing module—downward synchronization and horizontal sealing clamping, downward film pulling, horizontal sealing opening, and rapid upward return—are t1, t2, t3, and t4, respectively. The three steps of downward synchronization and horizontal sealing clamping, downward film pulling, and horizontal sealing opening are all performed during the downward synchronization process. Therefore, the downward synchronization time is T3 = t1 + t2 + t3, and the upward return time is t4. The duration of one cycle of the first horizontal sealing module is T1 = T3 + t4 = t1 + t2 + t3 + t4. Similarly, the times for the four steps of the first horizontal sealing module—downward synchronization and horizontal sealing clamping, downward film pulling, horizontal sealing opening, and rapid upward return—are t5, t6, t7, and t8, respectively. The downward synchronization time is T4 = t5 + t6 + t7, and the upward return time is t8. The duration of one cycle of the first horizontal sealing module is T2 = T4 + t8 = t5 + t6 + t7 + t8. In one implementation, t1 = t5, t2 = t6, t3 = t7, t4 = t8, T3 = T4, and T1 = T2. Of course, the duration of each step in the two horizontal sealing modules can also be set as needed.

[0065] In this embodiment, 1 < N ≤ 10, and the Nth package is the second, third, fourth, fifth, sixth, seventh, eighth, ninth, or tenth package below the first package. That is, the packages clamped by the second horizontal sealing module are other packages below the first horizontal sealing module. The first and second horizontal sealing modules do not heat-seal the same package's horizontal sealing position within one horizontal sealing cycle, with several packages in between. The specific number of packages in between depends on the length of the packages and the size of the horizontal sealing module.

[0066] 6. Punching mechanism 8

[0067] like Figures 29 to 32The punching mechanism 8 includes a second follow-up lifting module 86, a third mounting frame 81, a front cutter module 82, a rear cutter module 83, and a cutter drive module 84. The second follow-up lifting module is mounted on the first frame 2. The front cutter module 82 and the rear cutter module 83 are mounted opposite each other on the third mounting frame 81. The third mounting frame 81 is connected to the second follow-up lifting module 86. The third mounting frame 81 rises and falls under the drive of the second follow-up lifting module 86, driving the front cutter module 82 and the rear cutter module 83 to rise and fall together, so as to keep in sync with the longitudinal sealing module 53 and the transverse sealing module on the strip packaging machine, and follow the strip packaging. During the descent, the strip packaging is cut. Follow-up cutting of the strip packaging can avoid pulling on the strip packaging, or deformation and twisting of the strip packaging due to accumulation, which would lead to inaccurate or uneven cutting positions. This embodiment also includes a bag support module 85, which is mainly used to fix the strip packaging before cutting to avoid the strip packaging shaking during cutting.

[0068] The front cutting module 82 includes a front cutting holder 821 and a plurality of front cutting blades 822 arranged side by side on the front cutting holder 821. The rear cutting module 83 includes a rear cutting holder 831 and a plurality of rear cutting blades 832 arranged side by side on the rear cutting holder 831. The front cutting holder 821 and the rear cutting holder 831 are arranged opposite to each other. The number of front cutting blades 822 and the number of rear cutting blades 832 are equal and their positions are opposite to each other so that the front cutting blades 822 and the rear cutting blades 832 can cooperate with each other to punch the strip package. The cutting drive module 84 is connected to at least one of the front cutting holder 821 and the rear cutting holder 831 to drive at least one of the front cutting holder 821 and the rear cutting holder 831 to move linearly, so that the front cutting blades 822 and the rear cutting blades 832 move closer to each other during the descent to punch the strip package accordingly.

[0069] In this embodiment, the cutter drive module 84 includes a second drive motor 841, a second ball spline structure, and a connecting rod structure. The second drive motor 841 is mounted on the first frame 2. The second ball spline structure includes a second spline shaft 842 and a second outer cylinder assembly 843 sleeved on the second spline shaft 842, capable of linear and rotational motion. The second ball spline structure is a conventional component, commercially available, and its structure and principle are not described in detail here. In this embodiment, the second spline shaft 842 is vertically mounted on the first frame 2, and the third mounting bracket 81 is mounted on the second outer cylinder assembly 843. The second drive motor 841 is driven by the second spline shaft 842 to drive the second spline shaft 842 to rotate, thereby driving the second outer cylinder assembly 843 to rotate. At the same time, the second outer cylinder assembly 843 and the third mounting bracket 81 can move up and down along the second spline shaft 842. The rotation of the second outer cylinder assembly 843 drives at least one of the front cutter holder 821 and the rear cutter holder 831 to move linearly through the second linkage structure, so that the front cutter holder 821 and the rear cutter holder 831 move closer or further away from each other, thereby bringing the front cutter 822 and the rear cutter 832 closer together to punch the strip package.

[0070] The second ball spline structure allows the second drive motor 841 to be fixedly mounted on the first frame 2 instead of the third mounting bracket 81. Power can be transmitted via the second spline shaft 842 to drive the front cutter module 82 and the rear cutter module 83 for cutting. Simultaneously, the third mounting bracket 81 can move the front cutter module 82 and the rear cutter module 83 up and down accordingly. The external mounting of the second drive motor 841 significantly reduces the load on the third mounting bracket 81, easily achieving follow-up movement. In this embodiment, the cutter drive modules 84 are arranged in two parallel sets, which together drive the front cutter module 82 and the rear cutter module 83 synchronously, adapting to equipment with a large number of strips and ensuring even force distribution. In this embodiment, the strips are arranged in 12 rows side-by-side. Using the aforementioned second ball spline structure as the driving component of the cutter drive module 84, both second drive motors 841 can be mounted outside the third mounting bracket 81, further reducing the lifting load. In this embodiment, the third mounting bracket 81, the front cutter bracket 821 and the rear cutter bracket 831 are all provided with hollow structures to further reduce the weight of the overall lifting. The hollow holes can also be used to remove the waste edges. A waste conveyor belt is provided below, and the fallen waste edges fall onto the waste conveyor belt and are discharged.

[0071] For the cutter drive module 84, the second outer cylinder assembly 843 is connected to at least one of the front cutter holder 821 and the second cutter holder through the second linkage structure, so that at least one of the two cutter holders moves linearly. In this way, the two cutter holders can move closer or further apart from each other. They can be connected only to the front cutter holder 821 to drive the front cutter holder 821 to move linearly, or they can be connected only to the rear cutter holder 831 to drive the rear cutter holder 831 to move linearly, or they can be connected to both the front cutter holder 821 and the second cutter holder to drive both to move simultaneously.

[0072] In this embodiment, in order to improve the driving effect, such as Figure 32 The cutter drive module 84 drives the front cutter holder 821 and the rear cutter holder 831 to move synchronously. Specifically, the third mounting bracket 81 has a second guide hole, and a second guide rod 847 passes through the second guide hole (via a linear bearing). The second guide rod 847 can slide along the second guide hole, with both ends extending out of the second guide hole, designated as a first end and a second end, respectively. The front cutter holder 821 is fixed to the first end of the second guide rod 847, and the rear cutter holder 831 is slidably mounted on the second guide rod. Located between the third mounting bracket 81 and the front cutter holder 821, the second guide rod 847 has a second linkage bracket 846 fixed to its second end. The second linkage structure includes a front cutter linkage structure 844 and a rear cutter linkage structure 845. The second outer cylinder assembly 843 is connected to the rear cutter holder 831 via the rear cutter linkage structure 845, and to the second linkage bracket 846 via the front cutter linkage structure 844. The second linkage bracket 846 pushes the front cutter holder 821 to move via the second guide rod 847. This structure allows the two cutter modules to be driven synchronously through the same drive module. The two cutters can work together synchronously, improving drive efficiency. It also allows the two cutter modules to be located on the same side of the drive module, avoiding problems such as pack avoidance and structural bulk caused by the drive module being located above, below, or at both ends of the two cutter modules. In this embodiment, there are two parallel second guide rods 847 that pass through both ends of the third mounting bracket 81 respectively. The two sets of cutter drive modules 84 are located in the middle of the third mounting bracket 81, which can improve the stability of operation and has a compact structure.

[0073] In one embodiment, the front cutter linkage structure 844 includes a first front cutter linkage 8441 and a second front cutter linkage 8442. One end of the first front cutter linkage 8441 is fixedly connected to the second outer cylinder assembly 843, and the other end is hinged to one end of the second front cutter linkage 8442. The other end of the second front cutter linkage 8442 is hinged to the second linkage frame 846. The rear cutter linkage structure 845 includes a first rear cutter linkage 8451 and a second rear cutter linkage. 8452, one end of the first rear cutter connecting rod 8451 is fixedly connected to the second outer cylinder assembly 843, and the other end is hinged to one end of the second rear cutter connecting rod 8452. The other end of the second rear cutter connecting rod 8452 is hinged to the rear cutter holder 831. The first front cutter connecting rod 8441 and the first rear cutter connecting rod 8451 are located on a straight line, that is, the first front cutter connecting rod 8441 and the first rear cutter connecting rod 8451 are respectively arranged on opposite sides of the second outer cylinder assembly 843. This drive structure allows the rear cutter holder 831 and the second linkage frame 846 to move closer or further apart. The second linkage frame 846 and the front cutter holder 821 are rigidly connected by the second guide rod 847, and their movement directions are the same. However, since the second linkage frame 846 and the front cutter holder 821 are located on opposite sides of the rear cutter holder 831, when the rear cutter holder 831 and the second linkage frame 846 move closer together, the rear cutter holder 831 and the front cutter holder 821 move further apart, and vice versa.

[0074] Since the linear movement distance of the rear cutter holder 831 and the front cutter holder 821 is not large, the rotation amplitude of the second spline shaft 842 is not large, and it is in a swinging state. Therefore, in this embodiment, the second drive motor 841 is driven and connected to the second spline shaft 842 through the fourth linkage structure 848. Compared with the method of directly connecting the second drive motor 841 to the second spline shaft 842, the spatial layout can be more reasonable. The two second drive motors 841 can be vertically arranged on the side of the first frame 2, and the drive motor on the second follow-up lifting assembly can be arranged horizontally. Specifically, the fourth linkage structure 848 includes a first punching drive linkage 8481 and a second punching drive linkage 8482. One end of the first punching drive linkage 8481 is connected to the second drive motor 841, and the other end is hinged to one end of the second punching drive linkage 8482. The other end of the second punching drive linkage 8482 is fixedly connected to the second spline shaft 842.

[0075] The second follow-up lifting component drives the third mounting bracket 81 to rise and fall. It can be a servo motor driven by a lead screw. For further rational space layout, in this embodiment, the second follow-up lifting component is a servo motor driven by a synchronous belt. Specifically, the second follow-up lifting component includes a fifth drive motor 861, a second transmission shaft 862, a second drive pulley 863, a third driven pulley 865, and a third toothed belt 864. The fifth drive motor 861 is mounted on the first frame 2, and the second transmission shaft 862 is horizontally mounted on the first frame 2. The fifth drive motor 861 is connected to the second transmission shaft 862. The second drive pulley 865... The third drive wheel 863 is mounted on the second drive shaft 862 and rotates with it. The third driven wheel 865 is rotatably mounted above the second drive wheel 863. The third toothed belt 864 surrounds the second drive wheel 863 and the third driven wheel 865. The third mounting bracket 81 is fixed to the third toothed belt 864. The fifth drive motor 861 drives the second drive wheel 863 to rotate via the second drive shaft 862. The second drive wheel 863 drives the third toothed belt 864 to move, thereby driving the third mounting bracket 81 and its front cutter module 82 and rear cutter module 83 to rise and fall, so as to follow the cutting of strips. The third mounting bracket 81 is also provided with a third slider 811, and the first frame 2 is correspondingly provided with a third slide rail. The third mounting bracket 81 can rise and fall along the first frame 2 through the cooperation of the third slider 811 and the third slide rail.

[0076] As one implementation method, such as Figures 33 to 36 The front cutter 822 is mounted on the front cutter holder 821 via a front cutter seat 8221. The front cutter 822 has a protruding edge 8222, and the upper and lower edges of the protruding edge 8222 are both blade structures. The rear cutter 832 is mounted on the rear cutter holder 831 via a rear cutter seat 8321. The rear cutter 832 includes two blades 8322 arranged vertically. The two blades 8322 cooperate with the blade structure on the front cutter 822 to cut two adjacent packages from the connection point. The upper blade 8322 and the blade cut the bottom of the previous package, and the lower blade and the blade 8322 cut the top of the next package.

[0077] In this embodiment, the two blades 8322 on the rear cutter 832 are inclinedly arranged on the rear cutter holder 8321, and the two blades 8322 gradually move closer to each other towards the front cutter 822 until a narrow slit 8325 is formed between the two blades 8322. This allows the cut waste edge to enter through the slit 8325 and slide down the inclined surface, preventing the waste edge from clogging the cutting point. The front cutter holder 8221 is provided with a guide strip 8223, which can be integrated with the front cutter holder 8221. The rear cutter holder 8321 is provided with a guide groove 8323 that matches the guide strip 8223. The rear cutter 832 achieves positioning and cooperation with the front cutter 822 through the cooperation of the guide groove 8323 and the guide strip 8223, avoiding positional deviation when the two cutters are in cooperation.

[0078] For some packs that require an easy-tear opening, the front cutter holder 8221 is also provided with an easy-tear blade 83228224, and the rear cutter holder 8321 is provided with an easy-tear groove 8324 that matches the easy-tear blade 83228224. When the front cutter 822 and the rear cutter 832 work together to cut, the easy-tear blade 83228224 and the easy-tear groove 8324 work together to cut an easy-tear opening at the edge of the pack.

[0079] The support module 85 is mainly used to fix the strip package to facilitate punching, such as... Figure 32 , Figure 33 The bag support module 85 includes two oppositely arranged bag support plates 851. The two bag support plates 851 are respectively connected to the front cutter frame 821 and the rear cutter frame 831 through elastic members 852. The two bag support plates 851 are positioned opposite each other, and the bag is located between the two bag support plates 851. When the front cutter frame 821 and the rear cutter frame 831 approach each other, the two bag support plates 851 also approach each other and are pre-fixed in the middle part of the bag under the action of the elastic member 852. The elastic member 852 includes a spring.

[0080] The above detailed description is a specific description of feasible embodiments of the present invention. These embodiments are not intended to limit the patent scope of the present invention. All equivalent implementations or modifications that do not depart from the present invention should be included in the patent scope of this case.

Claims

1. A multi-row strip packaging machine, characterized in that, The device includes a first frame and a film feeding mechanism, a color mark detection mechanism, a longitudinal sealing mechanism, a first transverse sealing mechanism, a second transverse sealing mechanism, and a punching mechanism mounted on the first frame. The film feeding mechanism is used to transport packaging film. The color mark detection mechanism is mounted on the transport path of the packaging film and is used to detect color marks on the packaging film. The longitudinal sealing mechanism, the first transverse sealing mechanism, the second transverse sealing mechanism, and the punching mechanism are arranged sequentially from top to bottom along the first frame. The longitudinal sealing mechanism includes a strip package guiding and forming module, a first follow-up lifting module, and a longitudinal sealing module. Several strip package guiding and forming modules are horizontally and side-by-side fixed on the first frame. The strip package guiding and forming modules are used to guide the packaging film into a strip package shape and generate longitudinal edges. The first follow-up lifting module is installed on the first frame. Several longitudinal sealing modules are horizontally and side-by-side installed on the first mounting frame, and the number of longitudinal sealing modules is equal to the number of strip package guiding and forming modules, with their positions being one-to-one. The first mounting frame is connected to the first follow-up lifting module. Driven by the first follow-up lifting module, the first mounting frame drives several sets of longitudinal sealing modules to rise and fall synchronously with the strip package, and longitudinally seals the longitudinal edges on the strip package during the descent process. The first and second horizontal sealing mechanisms are parallel to each other, and are used to perform the first and second horizontal sealing on the strip package respectively, and alternately pull the film. The first and second horizontal sealing mechanisms have the same structure, both including a lifting drive module, a second mounting frame, a front heat sealing module, a rear heat sealing module, and a horizontal sealing drive module. The lifting drive module is mounted on the first frame, and the front and rear heat sealing modules are mounted opposite each other on the second mounting frame. The second mounting frame is connected to the lifting drive module, and the second mounting frame moves up and down under the drive of the lifting drive module, causing the front and rear heat sealing modules to move up and down together, thereby pulling down a section of the strip package. The front heat sealing module includes a front horizontal sealing frame and several front heat sealing blocks arranged side by side on the front horizontal sealing frame. The rear heat sealing module includes a rear horizontal sealing frame and several rear heat sealing blocks arranged side by side on the rear horizontal sealing frame. The front and rear horizontal sealing frames are arranged opposite to each other. The number of front and rear heat sealing blocks is equal, and their positions are one-to-one so that the front and rear heat sealing blocks can cooperate with each other to clamp the strip package and perform horizontal sealing on the strip package. The horizontal sealing drive module is connected to at least one of the front and rear horizontal sealing frames to drive at least one of the front and rear horizontal sealing frames to move linearly, so that the front and rear heat sealing blocks come closer to each other to clamp and pull the strip package and perform horizontal sealing on the strip package. The punching mechanism includes a second follow-up lifting module, a third mounting bracket, a front cutting blade module, a rear cutting blade module, and a cutting blade drive module. The second follow-up lifting module is mounted on the first frame. The front cutting blade module and the rear cutting blade module are mounted opposite each other on the third mounting bracket. The third mounting bracket is connected to the second follow-up lifting module. The third mounting bracket is raised and lowered under the drive of the second follow-up lifting module, which in turn raises and lowers the front cutting blade module and the rear cutting blade module together. The front cutting blade module includes a front cutting blade holder and components arranged side by side on the front cutting blade holder. The rear cutting module includes a rear cutting blade holder and a plurality of rear cutting blades arranged side by side on the rear cutting blade holder. The front cutting blade holder and the rear cutting blade holder are arranged opposite to each other, and the number of front cutting blades and the number of rear cutting blades are equal. Their positions are one-to-one so that the front cutting blades and the rear cutting blades can cooperate to punch the strip package. The cutting blade drive module is connected to at least one of the front cutting blade holder and the rear cutting blade holder to drive at least one of the front cutting blade holder and the rear cutting blade holder to move linearly, so that the front cutting blades and the rear cutting blades move closer to each other during the descent to punch the strip package accordingly. The heat-sealing surfaces of the front and rear heat-sealing blocks on the first horizontal sealing mechanism are both longitudinally textured, used to heat-seal longitudinal textures on the strip package; the heat-sealing surfaces of the front and rear heat-sealing blocks on the second horizontal sealing mechanism are both horizontally textured, used to heat-seal horizontal textures on the strip package at a position adjacent to the longitudinal textures heat-sealed by the first horizontal sealing mechanism. The first follow-up lifting module on the longitudinal sealing mechanism, the lifting drive module on the first and second transverse sealing mechanisms, and the second follow-up lifting module on the punching mechanism are all structures driven by a servo motor and a synchronous belt. The first mounting frame, the second mounting frame, or the third mounting frame is connected to the synchronous belt of the vertical part.

2. The multi-row strip packaging machine according to claim 1, characterized in that, The horizontal sealing drive module includes a first drive motor, a first ball spline structure, and a first connecting rod structure. The first drive motor is mounted on the first frame. The first ball spline structure includes a first spline shaft and a first outer cylinder assembly sleeved on the first spline shaft, capable of linear and rotary motion. The first spline shaft is vertically mounted on the first frame. The first outer cylinder assembly is mounted on the second mounting bracket. The first drive motor is driven by the first spline shaft to drive the first spline shaft to rotate. While the first outer cylinder assembly rotates, the first outer cylinder assembly and the second mounting bracket can move up and down along the first spline shaft. The first outer cylinder assembly is connected to at least one of the front horizontal sealing frame and the rear horizontal sealing frame through the first connecting rod structure. The rotation of the first outer cylinder assembly drives at least one of the front horizontal sealing frame and the rear horizontal sealing frame to move linearly through the first connecting rod structure, causing the front heat sealing block and the rear heat sealing block to move closer to or further away from each other. or / and, The cutter drive module includes a second drive motor, a second ball spline structure, and a second connecting rod structure. The second ball spline structure includes a second spline shaft and a second outer cylinder assembly sleeved on the second spline shaft, capable of linear and rotary motion. The second drive motor is mounted on the first frame, the second spline shaft is vertically mounted on the first frame, and the second outer cylinder assembly is mounted on the third mounting bracket. The second drive motor is driven by the second spline shaft to drive the second spline shaft to rotate, thereby rotating the second outer cylinder assembly. Simultaneously, the second outer cylinder assembly and the third mounting bracket can move up and down along the second spline shaft. The second outer cylinder assembly is connected to at least one of the front cutter holder and the rear cutter holder through the second connecting rod structure. The rotation of the second outer cylinder assembly drives at least one of the front cutter holder and the rear cutter holder to move linearly through the second connecting rod structure, causing the front cutter and the rear cutter to move closer to or further away from each other.

3. A multi-row strip packaging machine according to claim 2, characterized in that, In the horizontal sealing drive module, the second mounting bracket is provided with a first guide hole, and a first guide rod is inserted through the first guide hole. The first guide rod can slide along the first guide hole, and both ends of the first guide rod extend out of the first guide hole, which are the first end and the second end, respectively. The front horizontal sealing frame is fixed on the first end of the first guide rod, and the rear horizontal sealing frame is slidably mounted on the first guide rod and located in the middle between the second mounting bracket and the front horizontal sealing frame. A first linkage frame is fixed on the second end of the first guide rod. The first linkage structure includes a front sealing linkage structure and a rear sealing linkage structure. The first outer cylinder assembly is connected to the rear transverse sealing frame through the rear sealing linkage structure. The first outer cylinder assembly is connected to the first linkage frame through the front sealing linkage structure. The first linkage frame pushes the front transverse sealing frame to move through the first guide rod.

4. A multi-row strip packaging machine according to claim 3, characterized in that, The front sealing link structure includes a first front sealing link and a second front sealing link. One end of the first front sealing link is fixedly connected to the first outer cylinder assembly, and the other end is hinged to one end of the second front sealing link. The other end of the second front sealing link is hinged to the first linkage frame. The rear sealing link structure includes a first rear sealing link and a second rear sealing link. One end of the first rear sealing link is fixedly connected to the first outer cylinder assembly, and the other end is hinged to one end of the second rear sealing link. The other end of the second rear sealing link is hinged to the rear transverse sealing frame. The first front sealing link and the first rear sealing link are located on a straight line. The first drive motor is driven to the first spline shaft through a third link structure. The third link structure includes a first transverse sealing drive link and a second transverse sealing drive link. One end of the first transverse sealing drive link is connected to the first drive motor, and the other end is hinged to one end of the second transverse sealing drive link. The other end of the second transverse sealing drive link is fixedly connected to the first spline shaft.

5. A multi-row strip packaging machine according to claim 2, characterized in that, In the cutter drive module, the third mounting bracket is provided with a second guide hole, and a second guide rod is inserted through the second guide hole. The second guide rod can slide along the second guide hole, and both ends of the second guide rod protrude out of the second guide hole, which are the first end and the second end, respectively. The front cutter holder is fixed on the first end of the second guide rod, and the rear cutter holder is slidably mounted on the second guide rod and located between the third mounting bracket and the front cutter holder. A second linkage bracket is fixed on the second end of the second guide rod. The second linkage structure includes a front cutter linkage structure and a rear cutter linkage structure. The second outer cylinder assembly is connected to the rear cutter holder through the rear cutter linkage structure, and the second outer cylinder assembly is connected to the second linkage frame through the front cutter linkage structure. The second linkage frame pushes the front cutter holder to move through the second guide rod.

6. A multi-row strip packaging machine according to claim 5, characterized in that, The front cutter linkage structure includes a first front cutter linkage and a second front cutter linkage. One end of the first front cutter linkage is fixedly connected to the second outer cylinder assembly, and the other end is hinged to one end of the second front cutter linkage. The other end of the second front cutter linkage is hinged to the second linkage frame. The rear cutter linkage structure includes a first rear cutter linkage and a second rear cutter linkage. One end of the first rear cutter linkage is fixedly connected to the second outer cylinder assembly, and the other end is hinged to one end of the second rear cutter linkage. The other end of the second rear cutter linkage is hinged to the rear cutter frame. The first front cutter linkage and the first rear cutter linkage are located on a straight line. The second drive motor is driven to the second spline shaft through a fourth link structure. The fourth link structure includes a first punching drive link and a second punching drive link. One end of the first punching drive link is connected to the second drive motor, and the other end is hinged to one end of the second punching drive link. The other end of the second punching drive link is fixedly connected to the second spline shaft.

7. A multi-row strip packaging machine according to claim 1, characterized in that, Each set of longitudinal sealing modules includes a fixed frame, a longitudinal sealing drive module, a first longitudinal sealing clamp, a first heating block, a second longitudinal sealing clamp, and a second heating block. The fixed frame is fixedly connected to a first mounting frame. The longitudinal sealing drive module is mounted on the fixed frame. The first and second longitudinal sealing clamps are arranged opposite to each other, and their middle positions are mounted on the fixed frame via a pivot, so that the first and second longitudinal sealing clamps form a lever structure with the pivot as the fulcrum. The first and second longitudinal sealing clamps are divided by the pivot, with the first end and the second end being respectively the first end and the second end of the first and second longitudinal sealing clamps. The first end of the first longitudinal sealing clamp is opposite to the first end of the second longitudinal sealing clamp, and the second end of the first longitudinal sealing clamp is opposite to the second end of the second longitudinal sealing clamp. When the first end of the first longitudinal sealing clamp block and the first end of the second longitudinal sealing clamp block are far apart, the second end of the first longitudinal sealing clamp block and the second end of the second longitudinal sealing clamp block are close together. When the first end of the first longitudinal sealing clamp block and the first end of the second longitudinal sealing clamp block are close together, the second end of the first longitudinal sealing clamp block and the second end of the second longitudinal sealing clamp block are separated. The first hot stamping block is fixed on the second end of the first longitudinal sealing clamp block, and the second hot stamping block is fixed on the second end of the second longitudinal sealing clamp block. The longitudinal sealing drive module is located at the first end of the first longitudinal sealing clamp block and the first end of the second longitudinal sealing clamp block, and is used to drive the first end of the first longitudinal sealing clamp block and the first end of the second longitudinal sealing clamp block to be far apart, so that the first hot stamping block and the second hot stamping block are close together to longitudinally seal the strip package. A return spring is connected between the first end of the first longitudinal sealing clamp and the first end of the second longitudinal sealing clamp. The return spring uses elastic restoring force to bring the first end of the first longitudinal sealing clamp and the first end of the second longitudinal sealing clamp closer to each other, thereby causing the second end of the first longitudinal sealing clamp and the second end of the second longitudinal sealing clamp to move away from each other, and the first hot-pressing block and the second hot-pressing block to separate from each other, thus completing the longitudinal sealing.

8. A multi-row strip packaging machine according to claim 7, characterized in that, The longitudinal sealing drive module includes a cylinder and a push block. The cylinder is mounted on the fixed frame, and the push block is fixed on the telescopic end of the cylinder and located at the midpoint between the first end of the first longitudinal sealing clamp and the first end of the second longitudinal sealing clamp. The front end of the push block has a triangular cross-section. A connecting post is provided on the first end of the first longitudinal sealing clamp and the first end of the second longitudinal sealing clamp. Rollers that can roll in contact with the two sides of the triangular front end of the push block are mounted on the connecting post. The two sides of the triangular front end of the push block gradually move away from each other by rolling between the two rollers on the first end of the first longitudinal sealing clamp and the first end of the second longitudinal sealing clamp.

9. A multi-row strip packaging machine according to claim 1, characterized in that, It also includes a liquid metering mechanism, which is located outside the first frame. The liquid metering mechanism includes a second frame, a liquid storage tank and a metering module. Several metering modules are arranged side by side on the second frame. The liquid storage tank is located on the second frame and is connected to the inlet of several metering modules through a main liquid pipe. The outlet of several metering modules is connected to the injection pipe in several packing guide forming modules on the longitudinal sealing mechanism through pipes. The film feeding mechanism includes a film feeding roller, a traction roller, and a buffer assembly. The film feeding roller is used to feed the packaging film and is connected to a film feeding drive motor. The traction roller and the buffer assembly are arranged on the conveying path of the packaging film. The traction roller is connected to a film pulling drive motor for pulling the packaging film. The film feeding roller and the traction roller cooperate to ensure that the packaging film on the film feeding roller is completely used up. The buffer assembly includes a swing arm, a swing motor, and a buffer roller. The swing arm is swingably mounted on the first frame. The swing motor is driven to one end of the swing arm to drive the swing arm to swing. At least one of the buffer rollers is mounted on the other end of the swing arm. The packaging film passes around the buffer roller. The swing motor adjusts the tension of the packaging film by controlling the swing of the swing arm. The color mark detection mechanism includes an adjustment base, a color mark photocell, and an adjustment component. The color mark photocell is fixed on the adjustment base and is used to detect color marks on the packaging film. The adjustment component is connected to the adjustment base to drive the adjustment base to move along the length of the packaging film and adjust the relative position of the color mark photocell and the packaging film. A membrane pressing plate is installed above the color mark photocell, and the membrane pressing plate is used to flatten the edge of the packaging film.

Images