Sectional sealing device for multi-column packaging machine

Abstract

The utility model discloses a sectional type sealing device for a multi-column packaging machine. The sectional type sealing device comprises a transverse sealing supporting mechanism, a transverse sealing opening and closing device, a main sealing block mechanism, an auxiliary sealing block mechanism, a main driving mechanism and a transverse sealing transmission mechanism. The transverse sealing supporting mechanism comprises a transverse sealing large plate; the main sealing block mechanism comprises a main transverse sealing plate, the auxiliary sealing block mechanism comprises an auxiliary transverse sealing plate, and the transverse sealing transmission mechanism comprises an inner coupling block, an outer coupling block, an inner swing arm, an outer swing arm, a transverse sealing crankshaft and a main transmission shaft. The main transmission shaft rotates to drive the first and second support shafts to move relatively; n groups of main sealing blocks and main sealing block tensioning blocks are mounted below the main transverse sealing plate, and the tensioning blocks are supported on the back surfaces of the main sealing blocks through screws; the front surface is a sealed working surface; and N groups of auxiliary sealing blocks are arranged below the auxiliary transverse sealing plate. The temperature and the pressure can be independently controlled for the N groups of sealing blocks; a traditional air cylinder pushing sealing block pressing mode is changed into a servo motor-crankshaft transmission mode, the crankshaft drives the main sealing block and the auxiliary sealing block to move relatively under high-speed rotation, and high-speed packaging is carried out while continuous film feeding is achieved.

Description

Technical Field

[0001] This utility model relates to a packaging machine, and more specifically, to a segmented sealing device for a multi-row packaging machine used in the production equipment of bagged food or pharmaceutical packaging machinery. Background Technology

[0002] In existing packaging production machinery, the horizontal sealing devices of multi-row packaging machines all use cylinders to directly push and pull the front horizontal sealing block, while the rear horizontal sealing block is driven by a gear and rack device for clamping and sealing. As the number of packaging bags increases, the span of the horizontal sealing components becomes wider, and the horizontal sealing pressure increases. Therefore, increasing the number of cylinders for even distribution is necessary, but it is difficult to ensure that the pressure of all cylinders is consistent, and absolute consistency of action is also difficult to guarantee. At the same time, the manufacturing difficulty of the horizontal sealing block parts is high; the increased material selection, heat treatment, and surface treatment, along with other factors such as the increased overall size, result in high manufacturing costs. In actual production, depending on the material of the packaging bag film, a certain clamping time is required. To achieve a tight and aesthetically pleasing seal, it is necessary to increase the sealing pressure while ensuring the clamping time and heating temperature. When dealing with liquid products whose films have a certain thickness or special materials, to ensure the same sealing effect for each row, it is necessary to maintain the sealing pressure for each row and calibrate the clarity of the sealing lines for each row. The debugging and production processes significantly reduce the production speed of multi-row packaging machines, highlighting the disadvantages of this integrated sealing block in practice. In addition, most packaging machines on the market are currently designed for intermittent sealing by a single horizontal sealing mechanism that moves up and down to pull the film. This method is not suitable for continuous sealing production and cannot meet the requirements of high speed, high quality, and long-term stability of packaging equipment. Utility Model Content

[0003] In view of the above-mentioned prior art, this utility model provides a segmented sealing device for multi-row packaging machines, which has a simple and compact structure, is easy to install and debug, is reliable in operation, and has a high cost performance.

[0004] To solve the above-mentioned technical problems, this utility model proposes a segmented sealing device for a multi-row packaging machine, including a horizontal sealing support mechanism, a horizontal sealing opener / closer, a main sealing block mechanism, a secondary sealing block mechanism, a main drive mechanism, and a horizontal sealing transmission mechanism.

[0005] The horizontal sealing support mechanism includes a horizontal sealing plate; the horizontal sealing opener includes a main horizontal sealing opener block and a secondary horizontal sealing opener block; the main sealing block mechanism includes a main horizontal sealing plate, the secondary sealing block mechanism includes a secondary horizontal sealing plate, and the horizontal sealing transmission mechanism includes an outer coupling block, an inner coupling block, an outer swing arm, an inner swing arm, a horizontal sealing crankshaft, and a main transmission shaft;

[0006] Each of the left and right sides of the horizontal sealing plate has a horizontal sealing support and a horizontal guide block at its rear. Two horizontal support beams connect the two horizontal sealing supports. On each side of the horizontal sealing plate, a first support shaft and a second support shaft are mounted through several linear bearings with parallel axes. The horizontal guide block has a guide shaft parallel to the axis of the linear bearings. Each of the two first support shafts has a first moving block at its front end. One of the second support shafts is connected to the front end of the guide shaft on that side with a second moving block. The inner side of the second moving block has a horizontal rotating block rotatably connected via a horizontal sealing shaft. The other second support shaft is connected to the guide shaft on that side with a second moving block. The front ends of the shafts are all connected to the main block of the transverse sealing opener; the rear end of the first support shaft is connected to the front end of the inner coupling block, and the rear end of the second support shaft is connected to the front end of the outer coupling block; the rear end of the outer coupling block is connected to the outer swing arm, and a crankshaft seat is provided on the inner side of the outer swing arm; the rear end of the inner coupling block is connected to the front end of the inner swing arm, one end of the transverse sealing crankshaft is connected to the main drive shaft, and the other end of the transverse sealing crankshaft is connected to the crankshaft seat; the inner swing arm is disposed on the transverse sealing crankshaft; when the main drive shaft rotates, it simultaneously drives the first support shaft and the second support shaft to move synchronously relative to each other along the axial direction;

[0007] The main horizontal sealing plate is fixed between two first moving blocks. One end of the secondary horizontal sealing plate is connected to the horizontal rotating block, and the other end of the secondary horizontal sealing plate is connected to the secondary block of the horizontal sealing opener / closer. When the horizontal sealing opener / closer is in the closed and locked state, both the secondary horizontal sealing plate and the main horizontal sealing plate are in the horizontal direction.

[0008] N sets of main sealing blocks are fixedly installed on the underside of the main horizontal sealing plate. Each main sealing block is equipped with a main sealing block tensioning block, which is supported behind the main sealing block by screws. The main sealing blocks and the main sealing block tensioning blocks are arranged parallel to each other. The main sealing block has a through hole running from left to right, and a horizontal sealing heating rod is installed in the through hole. The front of the main sealing block is the sealing working surface. N sets of secondary sealing blocks are fixedly installed on the underside of the secondary horizontal sealing plate.

[0009] When the main drive shaft rotates, the second moving block fixed to the first support shaft drives the main transverse sealing plate to move back and forth. At the same time, the second moving blocks fixed to the two second support shafts and the main block of the transverse sealing opener drive the auxiliary transverse sealing plate to move back and forth. The auxiliary transverse sealing plate and the main transverse sealing plate move synchronously relative to each other along the axial direction. The main sealing block mechanism and the auxiliary sealing block mechanism open or close.

[0010] Furthermore, in the segmented sealing device of this utility model:

[0011] The rear middle position of the sub-sealing block is provided with a long groove that runs vertically through it. The long groove contains a sub-sealing block pin, and the end of the sub-sealing block pin is provided with a screw hole. The N sets of sub-sealing blocks are connected to the bottom surface of the sub-horizontal sealing plate by screws.

[0012] The bottom center of the main block of the horizontal sealing opener has a through groove in the front-to-back direction and a pin groove in the left-to-right direction. A horizontal sealing opener pin is located within the pin groove, and a horizontal sealing opener fork is mounted on the pin. A groove is located on the left side of the horizontal sealing opener fork, and a shallow blind hole is located within this groove. A blind hole corresponding to the position of the shallow blind hole is located at the top of the through groove of the main block of the horizontal sealing opener, and an opener compression spring is located within this blind hole. Under the action of this opener compression spring, the right end of the horizontal sealing opener fork remains... The device is in the raised position; a wedge-shaped structure is provided on the left side of the horizontal sealing switch sub-block, the wedge-shaped structure is embedded in the right side of the through groove of the horizontal sealing switch main block, and the wedge-shaped structure is at the same height as the right side of the through groove; a longitudinal sealing switch locking block is installed in front of the horizontal sealing switch sub-block, and a rubber bolt stop is fixed on the rear side of the horizontal sealing switch locking block, the rear of the rubber bolt stop is pressed against the front of the horizontal sealing switch main block, and the front of the horizontal sealing switch main block is flush with the front of the horizontal sealing switch sub-block.

[0013] Both the N sets of main sealing blocks and the N sets of auxiliary sealing blocks can be heated independently. The front of the main sealing block is the sealing working surface, and the back of the auxiliary sealing block is the sealing working surface. The sealing working surfaces can be designed with shapes and sealing patterns. The parallelism, distance, and sealing pressure between the sealing working surfaces of the auxiliary sealing block and the corresponding main sealing block are controlled by adjusting the screws on the back of the auxiliary sealing block. The two screws in the main sealing block and the auxiliary sealing block form a double-rod support.

[0014] The main drive mechanism includes a motor support fixed to the horizontal sealing plate and two horizontal support beams. A servo motor is mounted on the front end of the motor support via a motor mounting plate. A main drive shaft parallel to the horizontal sealing plate is mounted on the rear end of the motor support via a bearing seat. The output shaft of the servo motor passes through the motor support and is mounted with a drive pulley. A driven pulley is provided on the main drive shaft. Synchronous belts are provided on the drive pulley and the driven pulley.

[0015] Both ends of the main drive shaft are connected to the transverse sealing crankshaft via couplings. One end of the transverse sealing crankshaft is fixed to the transverse sealing support via a crank fixed bearing seat. The other end of the transverse sealing crankshaft is connected to the rear end of the inner swing arm, and its shaft end is fixed to the crank at one end of the crankshaft seat. The other end of the crankshaft seat is connected to the rear end of the outer swing arm. The two transverse sealing crankshafts at both ends of the main drive shaft are arranged in the same phase direction. The inner and outer swing arms on both sides move synchronously in opposite phases.

[0016] The sum of the eccentricities of the transverse seal crankshaft and the crankshaft seat is the maximum stroke when the transverse seal is opened and closed.

[0017] A signal disk is fixed on the main drive shaft, and a sensing handle is provided on the outer circumference of the signal disk. A sensor bracket is installed on the transverse sealing support, and a sensor is provided on the sensor bracket, with the sensor facing the sensing handle.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] In this sealing device, several sets of independent sealing blocks are provided between the main horizontal sealing plate and the secondary horizontal sealing plate, which can be controlled by temperature and pressure respectively. At the same time, the driving method is changed from the traditional method of cylinder pushing the sealing blocks to press them together to the transmission method of servo motor-crankshaft. Under high-speed rotation, the crankshaft drives the main / secondary sealing blocks to move back and forth relative to each other, which ensures the sealing quality, greatly improves the production speed, and reduces the cost of installation and debugging, thus meeting market demand. Attached Figure Description

[0020] Figure 1 This is a schematic diagram showing the installation position of the segmented sealing device of this utility model and the front plate of the packaging machine;

[0021] Figure 2 yes Figure 1 The diagram shows the installation position of the segmented sealing device and the front panel of the packaging machine from another angle.

[0022] Figure 3 yes Figure 1 The diagram shows the overall structure of the segmented sealing device of this utility model.

[0023] Figure 4 yes Figure 3 The diagram shown is a structural schematic after removing the horizontal sealing lifting slide rail, the timing belt clamp, and the timing belt.

[0024] Figure 5 yes Figure 4 A structural schematic diagram from another perspective of the structure shown;

[0025] Figure 6 yes Figure 5 A schematic diagram of the structure shown below after removing the main sealing block and the secondary sealing block mechanism;

[0026] Figure 7 yes Figure 3 A schematic diagram of the horizontal sealing opener / closer mechanism shown in the figure;

[0027] Figure 8 yes Figure 7 A schematic diagram of the horizontal sealing opener mechanism from another perspective;

[0028] Figure 9 yes Figure 7 The diagram shows the working principle of the horizontal sealing opener / closer mechanism.

[0029] Figure 10 yes Figure 1 A schematic diagram of the horizontal sealing support and horizontal sealing transmission mechanism installed on the horizontal sealing plate shown in the figure;

[0030] Figure 11 yes Figure 10 Enlarged view of part A in the middle;

[0031] Figure 12 yes Figure 10 The diagram shows the structure after removing the transverse sealing support and transverse support beam.

[0032] Figure 13 yes Figure 12 Enlarged view of part B in the middle;

[0033] Figure 14 yes Figure 6 A structural schematic diagram from another perspective of the structure shown;

[0034] Figure 15 yes Figure 14 The diagram shows the structure after removing the horizontal sealing plate and a horizontal sealing opener / closer.

[0035] Figure 16 yes Figure 4 Top view of the structure shown;

[0036] Figure 17 yes Figure 16 Enlarged view of part C in the middle;

[0037] Figure 18 yes Figure 4 A partial structural diagram of the main block and the sub-block shown in the figure;

[0038] Figure 19 yes Figure 18 A partial structural diagram of the main sealing block shown;

[0039] Figure 20 yes Figure 18 A partial structural diagram of the sub-block shown;

[0040] In the picture:

[0041] 00-Front panel, 01-Segmented sealing device, 03-Synchronous belt, 001-Horizontal sealing lifting slide rail, 002-Synchronous belt clamp, 100-Horizontal sealing support, 200-Horizontal sealing opener / closer, 300-Secondary sealing block mechanism, 400-Main sealing block mechanism, 500-Main drive mechanism, 600-Horizontal sealing transmission mechanism, 101-Horizontal sealing plate, 102-Horizontal guide block, 103-Horizontal sealing support, 104-Horizontal support Beam, 105-First support shaft, 106-Second support shaft, 107-Guide shaft, 108-First moving block, 109-Second moving block, 110-Horizontal sealing rotating shaft, 111-Horizontal rotating block, 112-Linear bearing, 201-Main block of horizontal sealing opener / closer, 202-Sub-block of horizontal sealing opener / closer, 203-Horizontal sealing opener / closer fork, 204-Locking block of horizontal sealing opener / closer, 205-Rubber bolt stop, 206 - Opening / closing spring, 207- Horizontal sealing opening / closing pin, 301- Secondary horizontal sealing plate, 302- Secondary sealing block, 303- Secondary sealing block pin, 304- Secondary sealing block tensioning block, 305- Screw, 306- Horizontal sealing heating rod, 401- Main horizontal sealing plate, 402- Main sealing block, 403- Main sealing block tensioning block, 501- Motor support, 502- Servo motor, 503- Main pulley, 504- Driven pulley, 505 - Bearing housing, 506- Motor mounting plate, 507- Tensioner block, 508- Synchronous belt, 601- Outer coupling block, 602- Inner coupling block, 603- Outer swing arm, 604- Inner swing arm, 605- Horizontal sealing crankshaft, 606- Main drive shaft, 607- Coupling, 608- Crankshaft housing, 609- Sensor bracket, 610- Signal disc, 611- Crankshaft fixed bearing housing, 612- Horizontal sealing swing arm pin. Detailed Implementation

[0042] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but the following embodiments are by no means intended to limit the present invention.

[0043] like Figure 1 , Figure 2 , Figure 3 As shown, during installation and use, the segmented sealing device 01 of this utility model is installed on the front panel 00 of the multi-row packaging machine main unit. A horizontal sealing lifting slide rail 001 is provided on the back of the front panel 00 of the multi-row packaging machine main unit. The slider is fixedly connected to the horizontal sealing support mechanism 100 of the segmented sealing device 01. The horizontal sealing support mechanism 100 is connected to the synchronous belt 03 via a synchronous belt clamp 002. The entire segmented sealing device 01 can move up and down along the horizontal sealing lifting slide rail 001. The front panel 00 of the multi-row packaging machine main unit has a rectangular hole through which the front part of the segmented sealing device 01 extends, so that the auxiliary sealing block mechanism 300 and the main and auxiliary block mechanisms 400, which perform the sealing work, are located on the front side of the multi-row packaging machine main unit housing.

[0044] like Figure 3As shown, the segmented sealing device 01 includes a horizontal sealing support mechanism 100, a horizontal sealing opener / closer mechanism 200, a secondary sealing block mechanism 300, a main and secondary block mechanism 400, a main drive mechanism 500, and a horizontal sealing transmission mechanism 600.

[0045] like Figure 3 , Figure 4 , Figure 5 As shown, the horizontal sealing support mechanism 100 provides support for all functional modules. For example... Figures 10 to 12 As shown, the horizontal sealing support mechanism 100 mainly includes a horizontal sealing plate 101. The horizontal sealing plate 101 has five through holes on each of its left and right sides, and a horizontal guide block 102 is provided on the front of each side. On the right side, as shown... Figure 11 As shown, the two horizontal guide blocks 102 have five through holes that connect to the through holes on this side of the horizontal sealing plate 101. Each through hole contains several linear bearings 112. Two second support shafts 106, installed at the top and bottom of the middle, can move back and forth within the holes under the guidance of the linear bearings. The rear end of the second support shaft 106 is fixedly connected to the outer coupling block 601, and the front end of the second support shaft 106 is fixedly connected to the second moving block 109. Guide shafts 107 are provided on the outer sides of the two second support shafts 106 via linear bearings 112. Two first support shafts 105 are provided on the inner sides of the two second support shafts 106 via linear bearings 112. The rear end of the first support shaft 105 is fixedly connected to the inner coupling block 602, and the front end of the first support shaft 105 is fixedly connected to the first moving block 108. The outer coupling block 601 and the inner coupling block 602 can slide alternately forward and backward along the axial direction, and the second moving block 109 and the first moving block 108 move synchronously and parallel relative to each other. Figure 13 and Figure 14 As shown, on the left side, the rear end of the second support shaft 106 is fixedly connected to the outer coupling block 601, and the front end of the second support shaft 106 is fixedly connected to the main block 201 of the horizontal sealing opener. The outer coupling block 601 and the inner coupling block 602 can slide alternately forward and backward along the axial direction, and the main block 201 of the horizontal sealing opener and the first moving block 108 move synchronously and parallel to each other. Figure 13 As shown, the second moving block 109 has a pin hole and a transverse sealing shaft 110 is provided inside. The transverse rotating block 111 is hinged to the second moving block 109 through the transverse sealing shaft 110. Figure 10 , Figure 11 and Figure 14 As shown, horizontal sealing supports 103 are installed on both sides of the back of the horizontal sealing plate 101, and are connected by horizontal support beams 104 to form a support frame.

[0046] like Figure 14As shown, a motor support 501 is installed in the middle of the back of the horizontal sealing plate 101. The upper and lower surfaces of the motor support 501 are fixedly connected to the horizontal support beam 104. On the right side of the motor support 501, the servo motor 502 is fixed to the motor support 501 via a motor mounting plate 506. A bearing seat 505 is provided at the rear end of the motor support 501, and the main drive shaft 606 is arranged parallel to the horizontal sealing plate via the bearing seat 505. There is a large hole on the motor support 501 where the servo motor 502 is installed. The motor shaft of the servo motor 502 extends from this hole and is mounted on the left side of the motor support 501 via an expansion sleeve. A driven pulley 504 is mounted on the main drive shaft 606 via an expansion sleeve. A synchronous belt 508 connects the main pulley 503 and the driven pulley 504.

[0047] like Figure 14 and Figure 15 As shown, the main drive shaft 606 is connected to the transverse sealing crankshaft 605 at both ends via couplings 607. One end of the transverse sealing crankshaft 605 is fixed to the transverse sealing support 103 via a crankshaft fixing bearing seat 611. The other end of the transverse sealing crankshaft 605 is connected to the rear end of the inner rocker arm 604, and the crankshaft end is fixed to the crankshaft seat 608. The other end of the crankshaft seat 608 is connected to the rear end of the outer rocker arm 603. The two transverse sealing crankshafts 605 are configured to have the same phase direction. The inner rocker arms 604 and outer rocker arms 603 move synchronously in opposite phases. The outer coupling block 601 is connected to the front end of the outer rocker arm 603 via a transverse sealing rocker arm pin 612, and the inner coupling block 602 is connected to the front end of the inner rocker arm 604 via a transverse sealing rocker arm pin 612. Figure 17 As shown, a signal disk 610 is fixed on the main drive shaft 606, and a sensor bracket 609 is installed on the transverse sealing support 103. There is a sensing handle on the outer circumference of the signal disk 610, and a sensor is provided on the sensor bracket 609. The sensor points to the sensing handle on the outer circumference of the signal disk 610.

[0048] like Figure 7 , Figure 8 and Figure 9As shown, the horizontal sealing opener / closer mechanism 200 includes a main horizontal sealing opener / closer block 201, with left and right pin grooves at the bottom center. A horizontal sealing opener / closer fork 203 is mounted in the pin groove of the main horizontal sealing opener / closer block 201 via a horizontal sealing opener / closer pin 207. A shallow blind hole is located in the groove on the left side of the horizontal sealing opener / closer fork 203, and a blind hole is located at the top of the corresponding groove in the main horizontal sealing opener / closer block 201. An opener / closer compression spring 206 is installed in the blind hole to keep the right end of the horizontal sealing opener / closer fork 203 in a raised position. A wedge-shaped mechanism is located on the left side of the horizontal sealing opener / closer sub-block 202, and a groove is located at the bottom. A groove is located on the right side of the main horizontal sealing opener / closer block 201. The wedge-shaped mechanism of the sub-block 202 is at the same height as the groove on the right side of the main horizontal sealing opener / closer block 201; the bottom groove of the sub-block 202 is aligned with the bottom pin groove of the main horizontal sealing opener / closer block 201. A longitudinal sealing device locking block 204 is installed in front of the transverse sealing device sub-block 202. A rubber bolt stop 205 is fixed to the rear side of the transverse sealing device locking block 204. The rear of the rubber bolt stop 205 presses against the front of the transverse sealing device main block 201, making the transverse sealing device main block 201 flush with the front of the transverse sealing device sub-block 202. This is the working position where the transverse sealing device 200 is closed and locked.

[0049] like Figure 16 and Figure 18 As shown, the left end of the secondary horizontal sealing plate 301 of the secondary sealing block mechanism 300 is fixedly connected to the secondary block 202 of the horizontal sealing opener / closer, and the right end is fixedly connected to the horizontal rotating block 111; the left end of the main horizontal sealing plate 401 of the main sealing block mechanism 400 is fixedly connected to the left first moving block 108 of the horizontal sealing support mechanism 100, and the right end is fixedly connected to the right first moving block 108 of the horizontal sealing support mechanism 100. When the horizontal sealing opener / closer 200 is in the closed and locked state, the secondary horizontal sealing plate 301 and the main horizontal sealing plate 401 are horizontally arranged.

[0050] like Figure 19 As shown, four sets of main sealing blocks 402 and main sealing block tensioning blocks 403 are fixedly installed under the main horizontal sealing plate 401 (taking a 12-column packaging machine as an example, the horizontal sealing block is divided into four sections, each containing 3 columns of horizontal sealing units). The main sealing block tensioning block 403 has two screw holes, with screws 305 installed inside to support the back of the main sealing block 402. The main sealing block 402 and the main sealing block tensioning block 403 are arranged parallel to each other. The front of the main sealing block 402 is the textured surface for horizontal sealing of the packaging bag (it is the sealing working surface). The main sealing block 402 has left and right through holes in the center, and a horizontal sealing heating rod 306 is installed inside.

[0051] like Figure 20As shown, the secondary sealing block 302 has an elongated groove running vertically in the middle of its rear side. A secondary sealing block pin 303 is located within the groove, and the secondary sealing block 302 is connected to the bottom surface of the secondary horizontal sealing plate 301 via a screw hole at the end of the pin 303. The secondary sealing block tensioning block 304 is fixedly connected to the bottom surface of the secondary horizontal sealing plate 301. The tensioning block 304 has two screw holes, with screws 305 installed inside to support the back of the secondary sealing block 302. The secondary sealing block 302 and the tensioning block 304 are arranged parallel to each other. The front of the secondary sealing block 302 is the working surface for horizontal sealing of the packaging bag. The interior of the secondary sealing block 302 has through holes running left and right in the middle, and a horizontal sealing heating rod 306 is installed inside.

[0052] like Figure 4 , Figure 16 , Figures 18 to 20 As shown, the front side (i.e., the sealing working surface) of the secondary sealing block 302 is arranged opposite to the front side (i.e., the sealing working surface) of the main sealing block 402, and the two sides are parallel. The main sealing block mechanism 400 and the secondary sealing block mechanism 300 can move synchronously and parallel to each other with the second moving block 109 (the main block 201 of the horizontal sealing opener and closer) and the first moving block 108, and the main sealing block mechanism 400 and the secondary sealing block mechanism 300 can open and close.

[0053] like Figures 13 to 16 As shown, when the servo motor 502 starts rotating forward, the main drive shaft 606 rotates, driving the two side horizontal sealing crankshafts 605 and crankshaft seats 608 to rotate synchronously in the forward direction, while the two side inner swing arms 604 and outer swing arms 603 swing synchronously in the opposite direction. The two side inner coupling blocks 602 move backward, and the outer coupling blocks 601 move forward, driving the first moving block 108 to move backward and the second moving block 109 (the main block 201 of the horizontal sealing opener / closer) to move forward. The sealing surfaces of the main sealing block mechanism 400 and the auxiliary sealing block mechanism 300 move away from each other, so that the segmented sealing device of this utility model is in the open state; when the servo motor 502 starts rotating in the opposite direction, the main drive shaft 606 rotates, driving the two side horizontal sealing crankshafts 605 and crankshaft seats 608 to rotate synchronously in the opposite direction, while the two side inner swing arms 604 and outer swing arms 603 swing synchronously in the opposite direction. The inner coupling blocks 602 on both sides move forward, and the outer coupling block 601 moves backward, causing the first moving block 108 to move forward and the second moving block 109 (the main block 201 of the horizontal seal opener / closer) to move backward. The sealing surfaces of the main sealing block mechanism 400 and the auxiliary sealing block mechanism 300 come together, and the segmented sealing device returns to its closed state. In this invention, the sum of the eccentricities of the horizontal seal crankshaft 605 and the crankshaft seat 608 is the maximum stroke during the opening and closing of the horizontal seal.

[0054] like Figure 18 As shown, in the main sealing block mechanism 400, the main sealing block 402 is a fixed component on the main horizontal sealing plate 401, which can be heated in sections and has its shape and texture set in sections. Figure 19As shown, in the secondary sealing block mechanism 300, the secondary sealing block 302 is a connecting component on the secondary horizontal sealing plate 301, which can be heated in sections and have different shapes and textures set in sections. Due to the elongated hole structure on the secondary sealing block 302, when the sealing surface of the secondary sealing block 302 is not parallel to the shaped surface of the main sealing block 402, the parallelism of the two sealing blocks, the distance between the two sealing surfaces, and the sealing pressure can be adjusted by finely adjusting the screws 305 on the back of the secondary sealing block 302 in each small section. This achieves adjustable section pressure and adjustable section temperature, making the heating of each section more uniform. At the same time, the two screws 305 in the main sealing block 402 and the secondary sealing block 302 form a double rod support, ensuring dynamic balance. The segmented structure distributes the pressure of the motor load.

[0055] In practice, multi-row packaging machines typically employ two sets of segmented sealing devices 01 to achieve alternating up and down movements of the upper and lower horizontal seals and relay-type film pulling, thereby realizing a continuous horizontal sealing working mode.

[0056] Although the above description of the present invention, a preheating and sealing device for a multi-row packaging machine, in conjunction with the accompanying drawings, is schematic, the present invention is not limited to the specific embodiments described above. The drawings are only one embodiment of the present invention and are not limited to the specific implementation methods described above. They are not restrictive. Those skilled in the art can make many modifications under the guidance of the present invention without departing from its spirit. Any obvious modifications should be protected by the present invention.

Claims

1. A segmented sealing device for a multi-row packaging machine, comprising a horizontal sealing support mechanism (100), a horizontal sealing opener / closer (200), a main sealing block mechanism (400), a secondary sealing block mechanism (300), a main drive mechanism (500), and a horizontal sealing transmission mechanism (600); characterized in that: The transverse sealing support mechanism (100) includes a transverse sealing plate (101); the transverse sealing opener (200) includes a transverse sealing opener main block (201) and a transverse sealing opener sub-block (202); the main sealing block mechanism (400) includes a main transverse sealing plate (401); the sub-sealing block mechanism (300) includes a sub-transverse sealing plate (301); and the transverse sealing transmission mechanism (600) includes an outer coupling block (601), an inner coupling block (602), an outer swing arm (603), an inner swing arm (604), a transverse sealing crankshaft (605), and a main transmission shaft (606). A horizontal sealing support (103) and a horizontal guide block (102) are provided on the rear of each of the left and right sides of the horizontal sealing plate (101). Two horizontal support beams (104) are connected between the two horizontal sealing supports (103). On the left and right sides of the horizontal sealing plate (101), a first support shaft (105) and a second support shaft (106) passing through the horizontal sealing plate (101) are respectively installed through several linear bearings with parallel axes. The horizontal guide block (102) is provided with a guide shaft (107) parallel to the axis of the linear bearing. The front end of each of the two first support shafts (105) is provided with a first moving block (108). One of the second support shafts (106) and the front end of the guide shaft (107) on this side are connected to a second moving block (109). The inner side of the second moving block (109) is provided with a horizontal rotating block (111) rotatably connected through a horizontal sealing rotating shaft (110). The other second support shaft (106) and the front end of the guide shaft (107) on this side are connected to a horizontal rotating block (111). The front ends of the first support shaft (105) are all connected to the main block (201) of the horizontal sealing opener; the rear end of the first support shaft (105) is connected to the front end of the inner coupling block (602), and the rear end of the second support shaft (106) is connected to the front end of the outer coupling block (601); the rear end of the outer coupling block (601) is connected to the outer swing arm (603), and a crankshaft seat (608) is provided on the inner side of the outer swing arm (603); the rear end of the inner coupling block (602) is connected to the main block (201) of the horizontal sealing opener; the rear end of the second support shaft (106) is connected to the main block (201) of the horizontal sealing opener; the rear end of the second support shaft (105) is connected to the main block (201) of the horizontal sealing opener; the rear end of the second support shaft (105) is connected to the main block (201) of the horizontal sealing opener; the rear end of the second support shaft (105) is connected to the main block (201) of the horizontal sealing opener; the rear end of the second support shaft (105) is connected to the main block (202 ... The end is connected to the front end of the inner rocker arm (604), one end of the transverse sealing crankshaft (605) is connected to the main drive shaft (606), and the other end of the transverse sealing crankshaft (605) is connected to the crankshaft seat (608). The inner rocker arm (604) is mounted on the transverse sealing crankshaft (605). When the main drive shaft (606) rotates, it simultaneously drives the first support shaft (105) and the second support shaft (106) to move synchronously relative to each other along the axial direction. The main horizontal sealing plate (401) is fixed between two first moving blocks (108). One end of the secondary horizontal sealing plate (301) is connected to the horizontal rotating block (111), and the other end of the secondary horizontal sealing plate (301) is connected to the secondary block (202) of the horizontal sealing opener / closer. When the horizontal sealing opener / closer (200) is in the closed and locked state, both the secondary horizontal sealing plate (301) and the main horizontal sealing plate (401) are in the horizontal direction. N sets of main sealing blocks (402) are fixedly installed on the underside of the main horizontal sealing plate (401). Each main sealing block (402) is equipped with a main sealing block tensioning block (403). The main sealing block tensioning block (403) is supported on the back side of the main sealing block (402) by screws (305). The main sealing block (402) and the main sealing block tensioning block (403) are arranged parallel to each other. The main sealing block (402) has a through hole that runs from left to right. A horizontal sealing heating rod (306) is installed in the through hole. The front side of the main sealing block (402) is the sealing working surface. N sets of secondary sealing blocks (302) are fixedly installed on the underside of the secondary horizontal sealing plate (301). When the main drive shaft (606) rotates, the second moving block (109) fixed to the first support shaft (105) drives the main transverse sealing plate (401) to move back and forth. At the same time, the second moving block (109) fixed to the two second support shafts (106) and the main block (201) of the transverse sealing opener and closer respectively drive the auxiliary transverse sealing plate (301) to move back and forth. The auxiliary transverse sealing plate (301) and the main transverse sealing plate (401) move synchronously relative to each other along the axial direction. The main sealing block mechanism (400) and the auxiliary sealing block mechanism (300) open or close.

2. The segmented sealing device according to claim 1, characterized in that, The secondary sealing block (302) has a long groove running vertically through the middle of its rear side. The groove contains a secondary sealing block pin (303), and the end of the secondary sealing block pin (303) has a screw hole. The N sets of secondary sealing blocks (302) are connected to the bottom surface of the secondary horizontal sealing plate (301) by screws.

3. The segmented sealing device according to claim 1, characterized in that, The bottom center of the main block (201) of the horizontal sealing opener is provided with a through groove in the front-to-back direction and a pin groove in the left-to-right direction. A horizontal sealing opener pin (207) is provided in the pin groove. A horizontal sealing opener fork (203) is installed on the horizontal sealing opener pin (207). A groove is provided on the left side of the horizontal sealing opener fork (203). A shallow blind hole is provided in the groove. A blind hole corresponding to the position of the shallow blind hole is provided at the top of the through groove of the main block (201) of the horizontal sealing opener. An opener compression spring (206) is provided in the blind hole. Under the action of the opener compression spring (206), the right end of the horizontal sealing opener fork (203) is kept in the position of the horizontal sealing opener. The raised position; a wedge-shaped structure is provided on the left side of the horizontal sealing switch sub-block (202), the wedge-shaped structure is embedded in the right side of the through groove of the horizontal sealing switch main block (201), the wedge-shaped structure is at the same height as the right side of the through groove; a longitudinal sealing switch locking block (204) is installed in front of the horizontal sealing switch sub-block (202), a rubber bolt stop block (205) is fixed on the rear side of the horizontal sealing switch locking block (204), the rear of the prime number rubber bolt stop block (205) is pressed against the front of the horizontal sealing switch main block (201), the horizontal sealing switch main block (201) is flush with the front of the horizontal sealing switch sub-block (202).

4. The segmented sealing device according to claim 1, characterized in that, The N sets of main sealing blocks (402) and N sets of auxiliary sealing blocks (302) can be heated separately. The front of the auxiliary sealing block (302) is the sealing working surface. The sealing working surface can be designed with shapes and sealing patterns. Each set of main sealing blocks (402) and auxiliary sealing blocks (302) can be controlled by adjusting the screws (305) on the back of the auxiliary sealing block (302) to control the parallelism and distance between the sealing working surfaces of the auxiliary sealing block (302) and the corresponding main sealing block (402) and the sealing pressure. The two screws in the main sealing block (402) and the auxiliary sealing block (302) form a double rod support.

5. The segmented sealing device according to claim 1, characterized in that, The main drive mechanism (500) includes a motor support (501) fixed to the horizontal sealing plate (101) and two horizontal support beams (104). A servo motor (502) is mounted on the front end of the motor support (501) through a motor mounting plate (506). A main drive shaft (606) parallel to the horizontal sealing plate (101) is mounted on the rear end of the motor support (501) through a bearing seat (505). The output shaft of the servo motor (502) passes through the motor support (501) and is mounted on a drive pulley (503). A driven pulley (504) is provided on the main drive shaft (606). A synchronous belt (508) is provided on the drive pulley (503) and the driven pulley (504).

6. The segmented sealing device according to claim 1, characterized in that, The two ends of the main drive shaft (606) are connected to the transverse sealing crankshaft (605) via couplings (607). One end of the crankshaft (605) is fixed to the transverse sealing support (103) via a crank fixed bearing seat (611). The other end of the crankshaft (605) is connected to the rear end of the inner rocker arm (604), and its shaft end is fixed to the crank at one end of the crankshaft seat (608). The other end of the crankshaft seat (608) is connected to the rear end of the outer rocker arm (603). The two transverse sealing crankshafts (605) at both ends of the main drive shaft (606) are set in the same phase direction. The inner rocker arm (604) and the outer rocker arm (603) on both sides move synchronously in opposite phases.

7. The segmented sealing device according to claim 1, characterized in that, The sum of the eccentricity of the horizontal seal crankshaft (605) and the crankshaft seat (608) is the maximum stroke when the horizontal seal is opened and closed.

8. The segmented sealing device according to claim 1, characterized in that, A signal disk (610) is fixed on the main drive shaft (606). A sensing handle is provided on the outer circumference of the signal disk (610). A sensor bracket (609) is installed on the horizontal sealing support (103). A sensor is provided on the sensor bracket (609), and the sensor faces the sensing handle.

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