Automatic clamp adjusting device for opening and closing clamped bags of horizontal bag feeding packaging machine and packaging machine

Abstract

The invention discloses an automatic clamping adjusting device for opening and closing clamping bags of a horizontal bag feeding packaging machine and the packaging machine, and relates to the technical field of opening and closing of clamping bags of packaging machines. Comprising a main body assembly, a first clamping assembly, a second clamping assembly and a third clamping assembly, the first clamping assembly, the second clamping assembly and the third clamping assembly are arranged on the main body assembly, and the main body assembly comprises a main plate, a first profile and a second profile, by controlling the first section bar and the second section bar to be close to and far away from each other, the first main clamping jaw and the first auxiliary clamping jaw, the second main clamping jaw and the second auxiliary clamping jaw, and the third main clamping jaw and the third auxiliary clamping jaw can be close to and far away from each other, so that three different forms of clamping and opening and closing are provided for a packaging bag respectively; by adjusting the distance between the first main clamping jaw and the first auxiliary clamping jaw, the distance between the second main clamping jaw and the second auxiliary clamping jaw and the distance between the third main clamping jaw and the third auxiliary clamping jaw, the clamping and opening and closing distance of the packaging bag is further adjusted on the basis of three different forms of clamping and opening and closing.

Description

Technical Field

[0001] This invention relates to the field of bag clamping and opening technology in packaging machines, specifically to an automatic clamping device for opening and closing bags in a horizontal bag feeding packaging machine and the packaging machine itself. Background Technology

[0002] Pre-packaging bags are a replacement for manual packaging, enabling large and small enterprises to automate packaging processes. In actual use, operators simply place hundreds of pre-made bags at a time into the bag-picking section of the machine. The machine's mechanical gripper automatically picks up the bags, prints the date, opens the bags, signals the metering device to measure and dispense the material, seals the bags, and outputs the contents. Customers can also add detailed functions such as emergency stop upon door opening, automatic card insertion, and abnormal discharge according to their product packaging needs. The entire packaging process requires no manual operation, effectively improving production efficiency and saving labor and management costs, thus significantly reducing overall costs.

[0003] The patent publication number CN106144039A discloses an opening and closing bag clamping mechanism for a bag packaging machine. A servo motor drives the lead screw of a sliding lead screw and nut assembly to rotate. The rotation of the lead screw is converted into the forward and backward sliding of the sliding nut through the engagement of the internal thread of the sliding nut and the external thread of the lead screw. The forward and backward sliding of the sliding nut drives one end of a first connecting rod to move. The other end of the first connecting rod is connected to the middle part of a second connecting rod, converting the movement of the second connecting rod into the opening and closing movement of a third connecting rod. The opening and closing of the third connecting rod drives the clamp to open and close, completing the clamping and releasing actions. The structure is simple, the control is convenient, and it meets the requirements of automated control.

[0004] In the use of the above and similar technical solutions, the function of the lower carriage bag clamping opening and closing device in the horizontal bag feeding packaging machine is to open and close the pre-made bags. The top claw is the clamping device for the pre-made bags. The traditional clamping method is to manually adjust the clamping one by one according to the size of the bags, which is time-consuming and labor-intensive. When it is necessary to adjust the clamping and opening and closing distance for different sizes of bags, it is necessary to adjust according to the actual size, which is inconvenient to use. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic clamping device for opening and closing bags in a horizontal bag-feeding packaging machine and a packaging machine in general, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic clamping device for opening and closing the bag of a horizontal bag feeding packaging machine and a packaging machine, comprising a main body assembly and a first clamping assembly, a second clamping assembly and a third clamping assembly disposed on the main body assembly. The main body assembly includes a main board and a first profile and a second profile disposed on the main board. Both the first profile and the second profile are provided with crossbars, and there are at least four crossbars. The first clamping component includes a first pushing block, the second clamping component includes a second main pushing block and a second auxiliary pushing block, and the third clamping component includes a third main pushing block and a third auxiliary pushing block. The first pushing block is respectively provided with a first main gripper and a first auxiliary gripper, the second main pushing block and the second auxiliary pushing block are respectively provided with a second main gripper and a second auxiliary gripper, and the third main pushing block and the third auxiliary pushing block are respectively provided with a third main gripper and a third auxiliary gripper. The first and second profiles move closer and further apart, and the first main gripper and the first auxiliary gripper, the second main gripper and the second auxiliary gripper, and the third main gripper and the third auxiliary gripper can all move closer and further apart, providing three different forms of clamping and opening / closing for the packaging bag. By adjusting the distance between the first main gripper and the first auxiliary gripper, the second main gripper and the second auxiliary gripper, and the third main gripper and the third auxiliary gripper, the clamping and opening / closing distance for the packaging bag can be further adjusted based on the three different forms of clamping and opening / closing.

[0007] Furthermore, the main board is provided with a first base, and a first swing arm is rotatably connected to the first base. First push blocks are respectively disposed at the bottom of the first profile and the second profile and sleeved on the crossbar. A first moving rod is provided on each of the first swing arms. A first main clamping plate and a first auxiliary clamping plate are respectively disposed on the first push block. The first moving rod is disposed between the first main clamping plate and the first auxiliary clamping plate. First meshing teeth are fixedly connected to the first base. A first drive motor is provided on the main board. A first cam is fixedly connected to the output shaft of the first drive motor. A first clamping push rod is provided on the main board. The first clamping push rod contacts the first cam. A first connecting rod is provided on the first clamping push rod. The first connecting rod is connected to one of the first swing arms.

[0008] Furthermore, the main board is provided with a second base, and a second swing arm is rotatably connected to the second base. A second moving rod is fixedly connected to each of the second swing arms. The second main push block and the second auxiliary push block are both located at the bottom of the first profile and the second profile. The second main push block and the second auxiliary push block are alternately sleeved on the crossbar. The second main push block and the second auxiliary push block are respectively provided with a second main clamping plate and a second auxiliary clamping plate. The second moving rod is located on the second main clamping plate and the second auxiliary clamping plate. The second main push block and the second auxiliary push block on the first profile are respectively provided with a second auxiliary clamping jaw and a second main clamping jaw. The second main push block and the second auxiliary push block on the second profile are respectively provided with a second main clamping jaw and a second auxiliary clamping jaw. A second drive motor is fixedly connected to the main board. A second cam is fixedly connected to the output shaft of the second drive motor. A second clamping push rod is provided on the main board. The second clamping push rod contacts the second cam. A second meshing second locking tooth is fixedly connected to the second base. A second connecting rod is provided between the second clamping push rod and one of the second clamps.

[0009] Furthermore, the first and second profiles are respectively provided with a third main push block and a third auxiliary push block sleeved on the crossbar. The third main push block and the third auxiliary push block on the second profile are respectively provided with a third main gripper and a third auxiliary gripper. The third main push block and the third auxiliary push block on the first profile are respectively provided with a third auxiliary gripper and a third main gripper. The third main gripper and the third auxiliary gripper are aligned. The third main push block and the third auxiliary push block are respectively provided with a third main clamping plate and a third auxiliary clamping plate. The main board is provided with a third drive motor. The output of the third drive motor... A third cam is fixedly connected to the shaft. A third clamping push rod and a main shaft are provided on the main board. The third clamping push rod is in contact with the third cam. A third connecting plate is provided on the main shaft. A third connecting rod is rotatably connected between the third connecting plate and the third clamping push rod. Multiple torsion plates are fixedly connected to the main shaft. A sleeve is sleeved on the main board. A telescopic seat is provided on the sleeve. A telescopic rod is provided in the sleeve. Torsion connecting rods are connected between the torsion plates and the sleeve and the telescopic rod respectively. A first locking block is fixedly connected between the telescopic seat and the first profile. A second locking block is fixedly connected between the telescopic rod and the second profile.

[0010] Furthermore, the main board is equipped with a fourth drive motor, and a main gear plate is fixedly connected to the output shaft of the fourth drive motor. The main board is equipped with a bidirectional threaded rod, and a secondary gear plate that meshes with the main gear plate is fixedly connected to the bidirectional threaded rod. Movable seats are respectively meshed and sleeved on the bidirectional threaded rod, and third moving rods are respectively fixedly connected to the movable seats. The third main push block and the third auxiliary push block are respectively equipped with a third main clamping plate and a third auxiliary clamping plate, and the third moving rod is set on the third main clamping plate and the third auxiliary clamping plate.

[0011] Furthermore, a first rolling wheel, a second rolling wheel, and a third rolling wheel are rotatably connected to the first moving rod, the second moving rod, and the third moving rod, respectively. The first rolling wheel contacts the first main clamping plate and the first auxiliary clamping plate, the second rolling wheel contacts the second main clamping plate and the second auxiliary clamping plate, and the third rolling wheel contacts the third main clamping plate and the third auxiliary clamping plate.

[0012] Furthermore, the main board is equipped with a jet assembly, which includes multiple jet seats. An exhaust seat is mounted on the main board, and a jet push rod is rotatably connected to each exhaust seat. A second connecting plate is fixedly connected to the main shaft. A linkage block is rotatably connected to each exhaust seat. A linkage rod is rotatably connected between the linkage blocks. A jet top plate is rotatably connected to the linkage rod. A jet connecting rod is rotatably connected between the jet top plate and the second connecting plate. The main board is equipped with multiple fixed boxes. A lifting plate is slidably connected to the fixed box. The lifting plate is connected to the jet push rod. A compression cylinder is fixedly connected to the fixed box. A compression rod is sealed between the lifting plate and the compression cylinder. An air collecting pipe is provided between the compression cylinders. The main board is equipped with a first jet pipe and a second jet pipe. A diverter pipe is fixedly connected to both the first jet pipe and the second jet pipe. A connecting pipe is provided between the diverter pipes. The diverter pipe communicates with the air collecting pipe. Air delivery hoses are connected between the first jet pipe and the second jet pipe and the first main gripper and the first auxiliary gripper, the second main gripper and the second auxiliary gripper, and the third main gripper and the third auxiliary gripper.

[0013] Compared with the prior art, the beneficial effects of the present invention are: The automatic clamping device for opening and closing the bag in this horizontal bag packaging machine, along with the packaging machine itself, controls the approach and distance of the first and second profiles. This allows the first main gripper and the first auxiliary gripper, the second main gripper and the second auxiliary gripper, and the third main gripper and the third auxiliary gripper to approach and move away from each other, providing three different forms of clamping and opening / closing for the packaging bag. By adjusting the distance between the first main gripper and the first auxiliary gripper, the second main gripper and the second auxiliary gripper, and the third main gripper and the third auxiliary gripper, the clamping and opening / closing distance for the packaging bag can be further adjusted based on the three different forms of clamping and opening / closing.

[0014] Meanwhile, since the second main push block and the second auxiliary push block on the first profile are equipped with second auxiliary grippers and second main grippers, and the positions and numbers of the second main grippers and second auxiliary grippers on the second profile are different, when the second main push block and the second auxiliary push block move, they will simultaneously drive some of the second auxiliary grippers and some of the second main grippers to move. When it is necessary to align and clamp the packaging bag, the alignment and clamping of the packaging bag can be achieved by controlling some of the second auxiliary grippers in the opposite position to align with the second main grippers. Conversely, when the second auxiliary grippers in the opposite position are not aligned with the second main grippers, the misalignment and clamping of the packaging bag can be achieved, providing more options.

[0015] Furthermore, since the third main push block and the third auxiliary push block on the second profile are equipped with the third main gripper and the third auxiliary gripper, while the third main push block and the third auxiliary push block on the first profile are equipped with the third auxiliary gripper and the third main gripper, and the third main gripper and the third auxiliary gripper are aligned, the third main gripper and the third auxiliary gripper always remain in a corresponding state when adjusting the lateral spacing of the third main gripper and the third auxiliary gripper, thus facilitating the corresponding clamping and opening of the packaging bag. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the first and second jet pipes of the present invention; Figure 3 This is a schematic diagram of the first and second profiles of the present invention; Figure 4 This is a schematic diagram of the bottom structure of the motherboard of the present invention; Figure 5 This is a schematic diagram of the back structure of the motherboard of the present invention; Figure 6 This is a schematic diagram of the structure of the first clamping component of the present invention; Figure 7 This is a schematic diagram of the bottom structure of the first clamping component of the present invention; Figure 8 This is a schematic diagram of the first clamping push rod structure of the present invention; Figure 9 This is a schematic diagram of the second clamping component structure of the present invention; Figure 10 This is a schematic diagram of the bottom structure of the second clamping component of the present invention; Figure 11 This is a schematic diagram of the second clamping push rod structure of the present invention; Figure 12 This is a schematic diagram of the third clamping component structure of the present invention; Figure 13 This is a schematic diagram of the bottom structure of the third clamping component of the present invention; Figure 14 This is a schematic diagram of the adjustment component structure of the present invention; Figure 15 This is a schematic diagram of the linkage structure of the present invention.

[0017] In the diagram: 1. Main component; 101. Main board; 102. Second profile; 103. First profile; 104. Crossbar; 2. Jet assembly; 201. First jet pipe; 202. Second jet pipe; 203. Compression cylinder; 204. Diverter pipe; 205. Gas delivery hose; 206. Gas collection pipe; 207. Fixing box; 208. Lifting plate; 209. Jet push rod; 210. Jet connecting rod; 211. Jet top plate; 212. Linking rod; 213. Linking block; 3. First clamping assembly; 301. First base; 302. First moving rod; 303. First main clamping plate; 304. First pushing block; 305. First auxiliary clamping plate; 306. First main gripper; 307. First auxiliary gripper; 308. First connecting rod; 309. First drive motor; 310. First clamping push rod; 4. Second clamping assembly; 401. Second base; 402. Second moving rod; 403. Second rolling wheel; 404. Second main pushing block; 405. 406. Second main gripper; 407. Second auxiliary gripper; 408. Second main clamping plate; 409. Second auxiliary clamping plate; 410. Second drive motor; 411. Second clamping push rod; 412. Second connecting rod; 5. Third clamping assembly; 501. Third main pushper; 502. Third auxiliary pushper; 503. Third main clamping plate; 504. Third auxiliary clamping plate; 505. Third moving rod; 506. Third rolling wheel; 507. Third main gripper; 5 08. Third gripper; 509. Third drive motor; 510. Third cam; 511. Third clamping push rod; 512. Third connecting rod; 513. Third connecting plate; 514. Main shaft; 515. Torsion plate; 516. Torsion connecting rod; 517. Telescopic rod; 518. Sleeve; 519. Telescopic seat; 520. Second clamping block; 521. Fourth drive motor; 522. Main gear plate; 523. Secondary gear plate; 524. Bidirectional threaded rod; 525. Moving seat. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Horizontal bag-feeding packaging machines, as efficient and automated packaging equipment, are widely used in various pre-made bag packaging production lines. However, traditional horizontal bag-feeding packaging machines suffer from many inconveniences in adjusting the bag clamp opening and closing, directly affecting production efficiency and flexibility. The working principle of horizontal bag-feeding packaging machines is relatively simple and efficient. The pre-made bags are clamped and opened via the bag clamping and opening device on the lower carriage to facilitate subsequent filling, sealing, and other processes. The core function of the lower carriage bag clamping and opening device is to open and close the pre-made bags, while the top claw acts as a clamping device, ensuring the bags remain stable throughout the packaging process. This series of actions, seemingly simple, has a crucial impact on packaging quality and efficiency. However, traditional clamping methods have revealed many problems. For a long time, the adjustment of the bag clamp opening and closing distance of packaging machines has mainly relied on… Traditional methods rely on manual operation, requiring operators to adjust the spacing and clamping force of the bag clamping device for each bag of different sizes. This manual adjustment is time-consuming and labor-intensive, especially when bag sizes need frequent changes, significantly impacting production efficiency. Furthermore, the accuracy of manual adjustments is difficult to guarantee; the operator's subjective judgment and skills can affect the results, easily leading to insufficient or excessive clamping force, resulting in poor packaging. When different clamping and opening / closing distances need to be adjusted for different bag sizes, operators must adjust according to the actual dimensions, which is inconvenient and prone to errors. These problems make traditional clamping methods unable to meet the efficiency and flexibility requirements of modern industrial production. This application provides an automatic clamping device for the opening and closing of the bag clamps in a horizontal bag-feeding packaging machine, as well as the packaging machine itself. Figures 1-15As shown, the device includes a main body assembly 1 and a first clamping assembly 3, a second clamping assembly 4, and a third clamping assembly 5 disposed on the main body assembly 1. The main body assembly 1 includes a motherboard 101 and a first profile 103 and a second profile 102 disposed on the motherboard 101. Both the first profile 103 and the second profile 102 are provided with crossbars 104, and there are at least four crossbars 104. The first clamping assembly 3 includes a first pushing block 304, the second clamping assembly 4 includes a second main pushing block 404 and a second auxiliary pushing block 405, and the third clamping assembly 5 includes a third main pushing block 501 and a third auxiliary pushing block 502. The first pushing block 304 is provided with a first main gripper 306 and a first auxiliary gripper 307, respectively. The second main pushing block 404 and the second auxiliary pushing block 405 are provided with a second... The main gripper 406 and the second auxiliary gripper 407, the third main push block 501 and the third auxiliary push block 502 are respectively provided with the third main gripper 507 and the third auxiliary gripper 508; the first profile 103 and the second profile 102 are close to each other and far apart, the first main gripper 306 and the first auxiliary gripper 307, the second main gripper 406 and the second auxiliary gripper 407, the third main gripper 507 and the third auxiliary gripper 508 can all move closer to each other and far apart, respectively providing three different forms of clamping and opening / closing for the packaging bag. By adjusting the distance between the first main gripper 306 and the first auxiliary gripper 307, the second main gripper 406 and the second auxiliary gripper 407, the third main gripper 507 and the third auxiliary gripper 508, the clamping and opening / closing distance of the packaging bag can be further adjusted based on the three different forms of clamping and opening / closing.

[0020] like Figures 6-8 As shown, the main board 101 is provided with a first base 301, and a first swing arm is rotatably connected to the first base 301. A first push block 304 is respectively provided at the bottom of the first profile 103 and the second profile 102, and is sleeved on the crossbar 104. A first moving rod 302 is provided on each of the first swing arms. A first main clamping plate 303 and a first auxiliary clamping plate 305 are respectively provided on the first push block 304. The first moving rod 302 is located between the first main clamping plate 303 and the first auxiliary clamping plate 305. A first meshing first locking tooth is fixedly connected to the first base 301. A first drive motor 309 is provided on the main board 101. A first cam is fixedly connected to the output shaft of the first drive motor 309. A first clamping push rod 310 is provided on the main board 101. The first clamping push rod 310 contacts the first cam. A first connecting rod 308 is provided on the first clamping push rod 310. The first connecting rod 308 is connected to one of the first swing arms.

[0021] It should be noted that when the first drive motor 309 starts and drives the first cam to rotate, it will drive the first clamping push rod 310 in contact with the first cam to rotate, and further drive the first connecting rod 308 to rise and fall. At this time, the first swing arm connected to the first connecting rod 308 will swing differently with the change in the height of the first connecting rod 308, and under the action of the first locking block, it will drive the other first swing arm to swing at the same time, thereby causing the two first moving rods 302 to move at the same time. Under the action of the first main clamping plate 303 and the first auxiliary clamping plate 305, it will further drive the first pushing block 304 to move, thereby adjusting the distance between the first main clamping jaw 306 and the first auxiliary clamping jaw 307, so as to clamp and open packaging bags of different sizes.

[0022] like Figures 9-11 As shown, a second base 401 is provided on the main board 101, and a second swing arm is rotatably connected to the second base 401. A second moving rod 402 is fixedly connected to each of the second swing arms. A second main pushing block 404 and a second auxiliary pushing block 405 are both provided at the bottom of the first profile 103 and the second profile 102. The second main pushing block 404 and the second auxiliary pushing block 405 are alternately sleeved on the crossbar 104. A second main clamping plate 408 and a second auxiliary clamping plate 409 are respectively provided on the second main pushing block 404 and the second auxiliary pushing block 405. The second moving rod 402 is provided on the second main clamping plate 408 and the second auxiliary clamping plate 409. The second main pushing block 402 on the first profile 103 is... 04 and the second auxiliary push block 405 are respectively provided with a second auxiliary gripper 407 and a second main gripper 406. The second main push block 404 and the second auxiliary push block 405 on the second profile 102 are respectively provided with a second main gripper 406 and a second auxiliary gripper 407. A second drive motor 410 is fixedly connected to the main board 101. A second cam is fixedly connected to the output shaft of the second drive motor 410. A second clamping push rod 411 is provided on the main board 101. The second clamping push rod 411 contacts the second cam. A second locking tooth that meshes with each other is fixedly connected to the second base 401. A second connecting rod 412 is provided between the second clamping push rod 411 and one of the second clamps.

[0023] It should be noted that when the second drive motor 410 starts and drives the second cam to rotate, the second clamping push rod 411 in contact with the second cam will rotate simultaneously, and under the action of the second connecting rod 412, it will drive one of the second cleats to rotate, thereby causing the two second swing arms on the second base 401 to rotate simultaneously, and simultaneously driving the two second moving rods 402 to move. Under the action of the second main clamping plate 408 and the second auxiliary clamping plate 409, the second main push block 404 and the second auxiliary push block 405 will move. Since the second main push block 404 and the second auxiliary push block 405 on the first profile 103 are equipped with second auxiliary grippers 407 and second main grippers 406, and the second main push block 405 on the second profile 102 are also equipped with second auxiliary grippers 407 and second main grippers 406, the second main push blocks 404 and the second auxiliary push blocks 405 on the second profile 102 will rotate simultaneously. The second main gripper 406 and the second auxiliary gripper 407 on the push block 404 and the second auxiliary push block 405 are in different positions and in different numbers. Therefore, when the second main push block 404 and the second auxiliary push block 405 move, they will simultaneously drive some of the second auxiliary grippers 407 and some of the second main grippers 406 to move. When it is necessary to align and clamp the packaging bag, the alignment and clamping of the packaging bag can be achieved by controlling some of the second auxiliary grippers 407 in the opposite position to align with the second main grippers 406. Conversely, when the second auxiliary grippers 407 in the opposite position are not aligned with the second main grippers 406, the misalignment and clamping of the packaging bag can be achieved, providing more options.

[0024] like Figures 12-14As shown, the first profile 103 and the second profile 102 are respectively provided with a third main push block 501 and a third auxiliary push block 502 sleeved on the crossbar 104. The third main push block 501 and the third auxiliary push block 502 on the second profile 102 are respectively provided with a third main gripper 507 and a third auxiliary gripper 508. The third main push block 501 and the third auxiliary push block 502 on the first profile 103 are respectively provided with a third auxiliary gripper 508 and a third main gripper 507. The third main gripper 507 and the third auxiliary gripper 508 are aligned. The third main push block 501 and the third auxiliary push block 502 are respectively provided with a third main clamping plate 503 and a third auxiliary clamping plate 504. The main board 101 is provided with a third drive motor 509. The output shaft of the third drive motor 509 is fixedly connected to a third main drive motor 508. The three-cam 510 has a main board 101 with a third clamping push rod 511 and a main shaft 514. The third clamping push rod 511 contacts the third cam 510. The main shaft 514 has a third connecting plate 513. The third connecting plate 513 and the third clamping push rod 511 are rotatably connected by a third connecting rod 512. The main shaft 514 is fixedly connected with multiple torsion plates 515. The main board 101 is fitted with a sleeve 518. The sleeve 518 is fitted with a telescopic seat 519. The sleeve 518 contains a telescopic rod 517. The torsion plates 515 are connected to the sleeve 518 and the telescopic rod 517 by torsion connecting rods 516. The telescopic seat 519 is fixedly connected to the first profile 103 by a first locking block. The telescopic rod 517 is fixedly connected to the second profile 102 by a second locking block 520.

[0025] It should be noted that when the third drive motor 509 rotates and drives the third cam 510 to rotate, the third clamping push rod 511, which is in contact with the third cam 510, will rotate simultaneously. Under the action of the third connecting rod 512, it will drive the third connecting plate 513 and the main shaft 514 to rotate. At this time, the two torsion plates 515 will rotate simultaneously and drive the telescopic rod 517 and the telescopic seat 519 to move in opposite directions. That is, the telescopic rod 517 and the telescopic seat 519 will move closer or further away at the same time. Under the action of the first clamping block and the second clamping block 520, the first profile 103 and the second profile 102 can move closer or further away at the same time. This allows the first main clamping jaw 306 and the first auxiliary clamping jaw 307, the second main clamping jaw 406 and the second auxiliary clamping jaw 407, and the third main clamping jaw 507 and the third auxiliary clamping jaw 508 to move closer and further away from each other, providing three different forms of clamping and opening / closing for the packaging bag.

[0026] like Figure 14As shown, a fourth drive motor 521 is provided on the main board 101. A main gear 522 is fixedly connected to the output shaft of the fourth drive motor 521. A bidirectional threaded rod 524 is provided on the main board 101. A secondary gear 523 that meshes with the main gear 522 is fixedly connected to the bidirectional threaded rod 524. A movable seat 525 is respectively meshed and sleeved on the bidirectional threaded rod 524. A third movable rod 505 is fixedly connected to the movable seat 525. A third main push block 501 and a third auxiliary push block 502 are respectively provided with a third main clamping plate 503 and a third auxiliary clamping plate 504. The third movable rod 505 is provided on the third main clamping plate 503 and the third auxiliary clamping plate 504.

[0027] It should be noted that when the fourth drive motor 521 starts and drives the main gear disk 522 to rotate, it will simultaneously drive the meshing auxiliary gear disk 523 to rotate, and further drive the bidirectional threaded rod 524 to rotate. At this time, the two moving seats 525 will move closer or further away at the same time, and under the action of the third moving rod 505, they will drive the third main push block 501 and the third auxiliary push block 502 to move closer or further away from each other, thereby achieving the position adjustment effect of the third main gripper 507 and the third auxiliary gripper 508. Due to the third main push block 501 and the third auxiliary gripper 508 on the second profile 102, The third auxiliary push block 502 is equipped with the third main gripper 507 and the third auxiliary gripper 508, while the third main push block 501 and the third auxiliary push block 502 on the first profile 103 are equipped with the third auxiliary gripper 508 and the third main gripper 507. The third main gripper 507 and the third auxiliary gripper 508 are aligned. Therefore, when adjusting the lateral distance between the third main gripper 507 and the third auxiliary gripper 508, the third main gripper 507 and the third auxiliary gripper 508 always remain in a corresponding state, which facilitates the corresponding clamping and opening of the packaging bag.

[0028] like Figure 1 As shown, a first rolling wheel, a second rolling wheel, and a third rolling wheel are rotatably connected to the first moving rod 302, the second moving rod 402, and the third moving rod 505, respectively. The first rolling wheel contacts the first main clamping plate 303 and the first auxiliary clamping plate 305, the second rolling wheel 403 contacts the second main clamping plate 408 and the second auxiliary clamping plate 409, and the third rolling wheel 506 contacts the third main clamping plate 503 and the third auxiliary clamping plate 504.

[0029] It should be noted that when the first moving rod 302, the second moving rod 402, and the third moving rod 505 drive the first pushing block 304, the second main pushing block 404, the second auxiliary pushing block 405, the third main pushing block 501, and the third auxiliary pushing block 502 to move respectively, since the first rolling wheel 403 and the third rolling wheel 506 can all rotate, the friction between the first moving rod 302, the second moving rod 402, and the third moving rod 505 and the first main clamping plate 303, the first auxiliary clamping plate 305, the second main clamping plate 408, the second auxiliary clamping plate 409, the third main clamping plate 503, and the third auxiliary clamping plate 504 can be reduced while maintaining the stability of the first pushing block 304, the second main pushing block 404, the second auxiliary pushing block 405, the third main pushing block 501, and the third auxiliary pushing block 502.

[0030] like Figures 1-2 As shown, a jet assembly 2 is provided on the main board 101. The jet assembly 2 includes multiple jet seats. An exhaust seat is provided on the main board 101. A jet push rod 209 is rotatably connected to each exhaust seat. A second connecting plate is fixedly connected to the main shaft 514. A linkage block 213 is rotatably connected to each exhaust seat. A linkage rod 212 is rotatably connected between the linkage blocks 213. A jet top plate 211 is rotatably connected to the linkage rod 212. A jet connecting rod 210 is rotatably connected between the jet top plate 211 and the second connecting plate. Multiple fixed boxes 207 are provided on the main board 101. A lifting plate 208 is slidably connected to the fixed box 207. The lifting plate 208 is connected to the jet push rod 209. A fixed plate is fixed on the fixed box 207. A compression cylinder 203 is connected, and a compression rod is sealed between the lifting plate 208 and the compression cylinder 203. An air collecting pipe 206 is provided between the compression cylinders 203. A first jet pipe 201 and a second jet pipe 202 are respectively provided on the main board 101. A diverter pipe 204 is fixedly connected to both the first jet pipe 201 and the second jet pipe 202. A connecting pipe is provided between the diverter pipes 204 and the air collecting pipe 206. Air supply hoses 205 are connected between the first jet pipe 201 and the second jet pipe 202 and the first main gripper 306 and the first auxiliary gripper 307, the second main gripper 406 and the second auxiliary gripper 407, the third main gripper 507 and the third auxiliary gripper 508.

[0031] It should be noted that when the main shaft 514 rotates, it will drive the second connecting plate to rotate. At this time, under the action of the jet connecting rod 210, the jet top plate 211 will continuously swing, which will drive the connecting rod 212 to swing, and then drive multiple connecting blocks 213 and jet push rod 209 to swing, causing multiple lifting plates 208 to rise and fall simultaneously. Air is compressed in the compression cylinder 203 through the compression rod. When the main shaft 514 rotates and the first profile 103 and the second profile 102 open from the attached state, the compression rod rises, a vacuum is generated in the compression cylinder 203, and air is injected into the compression cylinder 203 through the air collecting pipe 206 and the diverting pipe 204. At this time, under the action of the air supply hose 205, the first main gripper 306 and the first auxiliary gripper 307, the second main gripper 406 and the second auxiliary gripper 307 move in opposite directions. The gripper 407, the third main gripper 507, and the third auxiliary gripper 508 all generate negative pressure and open the contacted packaging bag, achieving a self-priming opening effect for the packaging bag. Conversely, when the main shaft 514 rotates, causing the first profile 103 and the second profile 102 to gradually come into contact from the open state, the compression rod descends, and the air in the compression cylinder 203 is forced out. The air flows through the air collection pipe 206 and the diversion pipe 204 to the first jet pipe 201 and the second jet pipe 202, and is also expelled outward through the air delivery hose 205 by the first main gripper 306 and the first auxiliary gripper 307, the second main gripper 406 and the second auxiliary gripper 407, the third main gripper 507 and the third auxiliary gripper 508, helping to keep the packaging bag upright and preventing the packaging bag from bending, which would affect the clamping and opening of the packaging bag.

[0032] It should be noted that when the first drive motor 309 starts and drives the first cam to rotate, it will cause the first clamping push rod 310 in contact with the first cam to rotate, and further drive the first connecting rod 308 to rise and fall, so that the two first moving rods 302 move simultaneously. Under the action of the first main clamping plate 303 and the first auxiliary clamping plate 305, the first pushing block 304 is further driven to move. When the second drive motor 410 starts and drives the second cam to rotate, the second clamping push rod 411 in contact with the second cam will rotate simultaneously, and under the action of the second connecting rod 412, it will drive one of the second cleaving teeth to rotate, and simultaneously drive the two second moving rods 402 to move. Under the action of plate 408 and second auxiliary clamping plate 409, the second main push block 404 and the second auxiliary push block 405 move, which simultaneously drives part of the second auxiliary gripper 407 and part of the second main gripper 406 to move. When the third drive motor 509 rotates and drives the third cam 510 to rotate, the third clamping push rod 511 in contact with the third cam 510 will rotate simultaneously, and under the action of the third connecting rod 512, it will drive the third connecting plate 513 and the main shaft 514 to rotate. At this time, the two torsion plates 515 will rotate simultaneously, and drive the telescopic rod 517 and the telescopic seat 519 to move in opposite directions, that is, the telescopic rod 517 and the telescopic seat 519 will move closer or closer to each other. When the first and second clamping blocks 520 move away, the first profile 103 and the second profile 102 can simultaneously move closer or further away, thereby allowing the first main clamping jaw 306 and the first auxiliary clamping jaw 307, the second main clamping jaw 406 and the second auxiliary clamping jaw 407, and the third main clamping jaw 507 and the third auxiliary clamping jaw 508 to move closer and further away from each other. When the fourth drive motor 521 starts and drives the main gear disk 522 to rotate, it will simultaneously drive the meshing auxiliary gear disk 523 to rotate, and further drive the bidirectional threaded rod 524 to rotate. At this time, the two moving seats 525 will simultaneously move closer or further away, and under the action of the third moving rod 505, drive the third main push block 50. The first and second profiles 103 and 102 move closer and further apart, and the first main gripper 306 and the first secondary gripper 307, the second main gripper 406 and the second secondary gripper 407, the third main gripper 507 and the third secondary gripper 508 can all move closer and further apart, providing three different forms of clamping and opening / closing for the packaging bag. By adjusting the distance between the first main gripper 306 and the first secondary gripper 307, the second main gripper 406 and the second secondary gripper 407, and the third main gripper 507 and the third secondary gripper 508, the clamping and opening / closing distance of the packaging bag can be further adjusted based on the three different forms of clamping and opening / closing.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. An automatic clamping device for opening and closing bags in a horizontal bag-feeding packaging machine and the packaging machine, comprising a main body assembly (1) and a first clamping assembly (3), a second clamping assembly (4), and a third clamping assembly (5) disposed on the main body assembly (1), characterized in that: The main component (1) includes a main board (101) and a first profile (103) and a second profile (102) disposed on the main board (101). The first profile (103) and the second profile (102) are each provided with a crossbar (104), and there are at least four crossbars (104). The first clamping component (3) includes a first pushing block (304), the second clamping component (4) includes a second main pushing block (404) and a second auxiliary pushing block (405), and the third clamping component (5) includes a third main pushing block (501) and a third auxiliary pushing block (502). The first pushing block (304) is respectively provided with a first main gripper (306) and a first auxiliary gripper (307), the second main pushing block (404) and the second auxiliary pushing block (405) are respectively provided with a second main gripper (406) and a second auxiliary gripper (407), and the third main pushing block (501) and the third auxiliary pushing block (502) are respectively provided with a third main gripper (507) and a third auxiliary gripper (508). The first profile (103) and the second profile (102) move closer and further apart. The first main gripper (306) and the first auxiliary gripper (307), the second main gripper (406) and the second auxiliary gripper (407), the third main gripper (507) and the third auxiliary gripper (508) can all move closer and further apart, providing three different forms of clamping and opening / closing for the packaging bag. By adjusting the distance between the first main gripper (306) and the first auxiliary gripper (307), the second main gripper (406) and the second auxiliary gripper (407), the third main gripper (507) and the third auxiliary gripper (508), the clamping and opening / closing distance of the packaging bag can be further adjusted based on the three different forms of clamping and opening / closing.

2. The automatic clamping device for opening and closing of the bag in a horizontal bag-feeding packaging machine and the packaging machine according to claim 1, characterized in that: The main board (101) is provided with a first base (301), and a first swing arm is rotatably connected to the first base (301). A first push block (304) is respectively provided at the bottom of the first profile (103) and the second profile (102) and sleeved on the crossbar. A first moving rod (302) is provided on each of the first swing arms. A first main clamping plate (303) and a first auxiliary clamping plate (305) are respectively provided on the first push block (304). The first moving rod (302) is provided on the first main clamping plate (303) and the first auxiliary clamping plate (305). Between the secondary clamping plates (305), the first base (301) is fixedly connected with a first meshing tooth, the main board (101) is provided with a first drive motor (309), the output shaft of the first drive motor (309) is fixedly connected with a first cam, the main board (101) is provided with a first clamping push rod (310), the first clamping push rod (310) contacts the first cam, the first clamping push rod (310) is provided with a first connecting rod (308), and the first connecting rod (308) is connected to one of the first swing arms.

3. The automatic clamping device for opening and closing bags in a horizontal bag-feeding packaging machine and the packaging machine according to claim 2, characterized in that: The main board (101) is provided with a second base (401), and a second swing arm is rotatably connected to each of the second bases (401). A second moving rod (402) is fixedly connected to each of the second swing arms. A second main push block (404) and a second auxiliary push block (405) are both provided at the bottom of the first profile (103) and the second profile (102). The second main push block (404) and the second auxiliary push block (405) are alternately sleeved on the crossbar. A second main clamping plate (408) and a second auxiliary clamping plate (409) are respectively provided on the second main push block (404) and the second auxiliary push block (405). The second moving rod (402) is provided on the second main clamping plate (408) and the second auxiliary clamping plate (409). The second main push block (404) on the first profile (103) is provided with a second main clamping plate (408) and a second auxiliary clamping plate (409). 4) The second auxiliary push block (405) is provided with a second auxiliary gripper (407) and a second main gripper (406). The second main push block (404) and the second auxiliary push block (405) on the second profile (102) are provided with a second main gripper (406) and a second auxiliary gripper (407). The main board (101) is fixedly connected to a second drive motor (410). The output shaft of the second drive motor (410) is fixedly connected to a second cam. The main board (101) is provided with a second clamping push rod (411). The second clamping push rod (411) contacts the second cam. The second base (401) is fixedly connected to a second meshing tooth. A second connecting rod (412) is provided between the second clamping push rod (411) and one of the second clamps.

4. The automatic clamping device for opening and closing of the bag in a horizontal bag-feeding packaging machine and the packaging machine according to claim 3, characterized in that: The first profile (103) and the second profile (102) are respectively provided with a third main push block (501) and a third auxiliary push block (502) sleeved on the crossbar (104). The third main push block (501) and the third auxiliary push block (502) on the second profile (102) are respectively provided with a third main gripper (507) and a third auxiliary gripper (508). The third main push block (501) and the third auxiliary push block (502) on the first profile (103) are respectively provided with a third main gripper (507) and a third auxiliary gripper (508). The main body (101) is equipped with a third auxiliary gripper (508) and a third main gripper (507), which are aligned. The third main push block (501) and the third auxiliary push block (502) are respectively equipped with a third main clamping plate (503) and a third auxiliary clamping plate (504). The main body (101) is equipped with a third drive motor (509), and a third cam (504) is fixedly connected to the output shaft of the third drive motor (509). 10), The main board (101) is provided with a third clamping push rod (511) and a spindle (514). The third clamping push rod (511) contacts the third cam (510). The spindle (514) is provided with a third connecting plate (513). A third connecting rod (512) is rotatably connected between the third connecting plate (513) and the third clamping push rod (511). Multiple torsion plates (515) are fixedly connected to the spindle (514). The main board (101) is sleeved with A sleeve (518) is provided with a telescopic seat (519), and a telescopic rod (517) is provided in the sleeve (518). A torsion plate (515) is connected to the sleeve (518) and the telescopic rod (517) by a torsion connecting rod (516). A first locking block is fixedly connected between the telescopic seat (519) and the first profile (103), and a second locking block (520) is fixedly connected between the telescopic rod (517) and the second profile (102).

5. The automatic clamping device for opening and closing of the bag in a horizontal bag-feeding packaging machine and the packaging machine according to claim 4, characterized in that: The main board (101) is provided with a fourth drive motor (521), and a main gear plate (522) is fixedly connected to the output shaft of the fourth drive motor (521). The main board (101) is provided with a bidirectional threaded rod (524), and a secondary gear plate (523) that meshes with the main gear plate (522) is fixedly connected to the bidirectional threaded rod (524). A movable seat (525) is respectively meshed and sleeved on the bidirectional threaded rod (524), and a third movable rod (505) is respectively fixedly connected to the movable seat (525). The third main push block (501) and the third auxiliary push block (502) are respectively provided with a third main clamping plate (503) and a third auxiliary clamping plate (504). The third movable rod (505) is provided on the third main clamping plate (503) and the third auxiliary clamping plate (504).

6. The automatic clamping device for opening and closing the bag in a horizontal bag-feeding packaging machine and the packaging machine according to claim 5, characterized in that: The first moving rod (302), the second moving rod (402), and the third moving rod (505) are respectively rotatably connected with a first rolling wheel, a second rolling wheel (403), and a third rolling wheel (506). The first rolling wheel contacts the first main clamping plate (303) and the first auxiliary clamping plate (305), the second rolling wheel (403) contacts the second main clamping plate (408) and the second auxiliary clamping plate (409), and the third rolling wheel (506) contacts the third main clamping plate (503) and the third auxiliary clamping plate (504).

7. The automatic clamping device for opening and closing of the bag in a horizontal bag-feeding packaging machine and the packaging machine according to claim 1, characterized in that: The main board (101) is provided with a jet assembly (2), which includes multiple jet seats. An exhaust seat is provided on the main board (101), and a jet push rod (209) is rotatably connected to each exhaust seat. A second connecting plate is fixedly connected to the main shaft (514). A linkage block (213) is rotatably connected to each exhaust seat. A linkage rod (212) is rotatably connected between the linkage blocks (213). A jet top plate (211) is rotatably connected to the linkage rod (212). A jet connecting rod (210) is rotatably connected between the jet top plate (211) and the second connecting plate. The main board (101) is provided with multiple fixed boxes (207). A lifting plate (208) is slidably connected to the fixed box (207). The lifting plate (208) is connected to the jet push rod (209). A fixed connection rod (209) is fixedly connected to the fixed box (207). A compression cylinder (203) and a lifting plate (208) are sealed and connected to the compression cylinder (203) with a compression rod. An air collecting pipe (206) is provided between the compression cylinders (203). A first jet pipe (201) and a second jet pipe (202) are respectively provided on the main plate (101). A diverter pipe (204) is fixedly connected to both the first jet pipe (201) and the second jet pipe (202). A connecting pipe is provided between the diverter pipes (204). The diverter pipe (204) is connected to the air collecting pipe (206). An air supply hose (205) is connected between the first jet pipe (201) and the second jet pipe (202) and the first main gripper (306) and the first auxiliary gripper (307), the second main gripper (406) and the second auxiliary gripper (407), the third main gripper (507) and the third auxiliary gripper (508).

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