An apparatus for manufacturing a biodegradable slider zipper bag

Abstract

The application provides a preparation device of a biodegradable puller zipper bag. The biodegradable puller zipper bag comprises a biodegradable bag body, a plurality of reinforcing ribs are symmetrically arranged at the front and back ends of the biodegradable bag body, a zipper is arranged at the upper end of the biodegradable bag body, and a puller is arranged on the zipper. A plurality of reinforcing ribs are arranged in a grid shape on the outside of the biodegradable bag body, the strength of the biodegradable bag body is improved, the produced zipper bag is firm and durable, and the technical problem that the strength of the zipper bag in the prior art is insufficient and the zipper bag is easily torn is solved.

Description

Technical Field

[0001] This invention relates to the field of bag making equipment manufacturing technology, and in particular to a device for preparing biodegradable zipper bags. Background Technology

[0002] Zipper bags can be divided into ordinary zipper bags, document zipper bags, and concealed zipper bags, and are widely used in daily life and industrial production. As people pursue a higher quality of life, businesses are inevitably required to invest in corresponding packaging equipment to meet production needs, which will also place higher demands on the precision, intelligence, and speed of packaging machinery.

[0003] However, existing zipper bags only have a bag body and lack reinforcing structures, resulting in insufficient strength and easy tearing. Summary of the Invention

[0004] This invention provides a device for preparing a biodegradable zipper bag, which solves the technical problem mentioned in the background art that the zipper bag only has a bag body and lacks a reinforcing structure, resulting in insufficient strength of the zipper bag and easy tearing of the zipper bag.

[0005] To solve the above-mentioned technical problems, the present invention discloses a biodegradable zipper bag with a zipper pull, comprising a biodegradable bag body, several reinforcing ribs symmetrically provided at the front and rear ends of the biodegradable bag body, a zipper provided at the upper end of the biodegradable bag body, and a zipper pull installed on the zipper.

[0006] Preferably, the biodegradable bag body is composed of a certain proportion of polyethylene resin, epoxy acrylate, calcium carbonate, nano titanium dioxide, benzoin ether, nano montmorillonite, tetrabutyl titanate, ramie fiber, polyvinyl alcohol, tributyl acetate citrate, maifanite powder, diethylene glycol monoethyl ether acetate, mica powder, zinc borate, antimony trioxide, decabromodiphenyl ethane, barium carbonate, vermicular graphite carbon, polyglycerol ricinoleate, wintergreen oil, 3-hydroxybenzoic acid, lauryl sulfate, plant saponins, and ginger extract.

[0007] Preferably, several reinforcing ribs are distributed in a grid pattern on the biodegradable bag.

[0008] Preferably, the reinforcing ribs and the biodegradable bag body are formed into a single unit using an injection molding process.

[0009] Preferably, the biodegradable bag body and the zipper are bonded together to form a whole.

[0010] A biodegradable zipper bag preparation apparatus includes a bag making mechanism, a heat sealing mechanism, a belt conveyor mechanism, and a collection mechanism connected sequentially from left to right.

[0011] Preferably, the heat sealing mechanism includes a base, with support plates and support seats symmetrically arranged on the front and rear sides of the upper end of the base. The upper end of the support seat is provided with a sliding hole, and the middle of the support seat is provided with placement grooves at both ends. The sliding hole and the placement grooves are connected. A fixed plate is fixedly connected to the upper end of the support plate, and a fixed end of a telescopic rod is fixedly installed on the upper end of the fixed plate. The movable end of the telescopic rod passes through the fixed plate and is fixedly connected to the upper end of the first sliding plate. The first sliding plate is slidably arranged between the support plates on the front and rear sides. A first spring is symmetrically arranged on the front and rear sides of the lower end of the first sliding plate. The first spring is fixedly connected to the upper end of the second sliding plate. A telescopic spring rod is symmetrically arranged on the front and rear sides of the lower end of the second sliding plate. The telescopic spring rod passes through the sliding hole and is fixedly connected to the pressing block.

[0012] Preferably, the lower end of the sliding plate 1 is fixedly connected to the fixed end of the telescopic block and the fixed block 1. The movable end of the telescopic block is fixedly connected to a welding knife. The fixed block 1 passes through the opening slot 1 on the sliding plate 2 and is slidably connected to the mating block 1. The inclined end of the mating block 1 is slidably connected to the inclined end of the mating block 2. The end of the mating block 1 away from the fixed block 1 is rotatably connected to the rotating shaft. The rotating shaft is fixedly connected to the gear sleeve 1 and the fan. The gear sleeve 1 meshes with the rack 1. The rack 1 is fixedly set between the support seats on the front and rear sides. The right end of the sliding plate 2 is rotatably connected to the gear 2 through the connecting shaft. The front and rear sides of the gear 2 mesh with the sawtooth 1 on the movable end of the telescopic block and the sawtooth on the fixed block 1, respectively.

[0013] Preferably, the collecting mechanism includes a base plate, and a rack 2 is provided at the lower corner of the base plate. The rack 2 passes through the opening at the upper end of the support shell and enters the support cavity. One end of the support cavity is fixedly connected to a fixed shaft. The fixed shaft is set in the movable cavity of the gear sleeve 2. Several grooves are evenly distributed circumferentially in the movable cavity of the gear sleeve 2. The gear sleeve 2 is fixedly connected to a rotating block. The rotating block is rotatably connected to the end of the support cavity away from the fixed shaft. A spring 2 is fixedly provided in the groove, and a pushing block is slidably provided in the groove. The inclined end of the pushing block cooperates with a limiting block. The limiting block is fixedly connected to the fixed shaft. A moving wheel is installed at the lower end of the support shell.

[0014] Preferably, a placement seat is fixedly installed on the upper end of the base plate. Sliding cavities are provided through the left and right ends of the placement seat. Fixed blocks 2 are slidably provided on the left and right sides of the sliding cavities. Fixed blocks 2 are fixedly connected to baffle 1. A rack 3 is fixedly connected to the end of fixed block 2 away from baffle 1. The rack 3 meshes with gear 3. Gear 3 is fixedly connected to operating rod. The operating rod passes through the rear end of the sliding cavity and the mounting plate and is fixedly connected to gear 4 and operating block. Gear 4 meshes with gear 1. Gear 1 is fixedly connected to threaded sleeve. Threaded sleeve is rotatably connected to mounting plate. The end of threaded sleeve away from mounting plate is threadedly connected to threaded rod. Threaded rod is rotatably connected to baffle 2. Baffle 2 is slidably disposed on the upper end of the placement seat.

[0015] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the preparation apparatus of the present invention;

[0019] Figure 3 This is a side view of the heat sealing mechanism of the present invention.

[0020] Figure 4 This is a side view of the collection mechanism of the present invention;

[0021] Figure 5 This is a schematic diagram of the internal structure of the second toothed sleeve of the present invention;

[0022] Figure 6 This is a front view structural diagram of the collection mechanism of the present invention;

[0023] Figure 7 This is a schematic diagram of the material inlet of the bag-making mechanism.

[0024] In the diagram: 1. Biodegradable bag body; 11. Reinforcing rib; 12. Zipper; 13. Zipper pull; 2. Bag making mechanism; 3. Heat sealing mechanism; 31. Base; 32. Support seat; 33. Placement slot; 34. Pressing block; 35. Telescopic spring rod; 36. Sliding hole; 37. Support plate; 38. Sliding plate two; 39. Spring one; 310. Sliding plate one; 311. Fixing plate; 312. Telescopic rod; 313. Telescopic block; 314. Mating block two; 315. Gear two; 316. Fixing block one; 317. Connecting shaft; 318. Mating block one; 319. Opening slot two; 320. Rotating shaft; 321. Gear sleeve one; 322. Fan; 323. Welding knife; 324. Rack one; 4. Belt conveyor mechanism; 5. Collection mechanism; 51. Base plate; 52. Rack II; 53. Support shell; 54. Support cavity; 55. Rotating block; 56. Gear sleeve II; 57. Fixed shaft; 58. Moving wheel; 59. Placement seat; 510. Sliding cavity; 511. Spring II; 512. Rack III; 513. Gear III; 514. Groove; 515. Baffle I; 516. Baffle II; 517. Threaded rod; 518. Fixed block II; 519. Threaded sleeve; 520. Gear I; 521. Mounting plate; 522. Operating block; 523. Operating lever; 524. Gear IV; 525. Pushing block; 526. Movable cavity; 527. Limiting block; 6. Feeding roller; 7. Tensioning wheel. Detailed Implementation

[0025] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0026] Furthermore, in this invention, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the invention. They are merely used to distinguish components or operations described using the same technical terms and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions and features of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0027] Example 1

[0028] This invention provides a biodegradable zipper pull bag, such as... Figures 1-2 As shown, the bag includes a biodegradable bag body 1, which has several reinforcing ribs 11 symmetrically arranged at its front and rear ends, and a zipper 12 at its upper end, with a zipper pull 13 installed on the zipper 12; wherein, the biodegradable bag body 1 can be an existing biodegradable bag body.

[0029] Biodegradable bag 1 is composed of a certain proportion of polyethylene resin, epoxy acrylate, calcium carbonate, nano titanium dioxide, benzoin ether, nano montmorillonite, tetrabutyl titanate, ramie fiber, polyvinyl alcohol, tributyl acetate citrate, maifanite powder, diethylene glycol monoethyl ether acetate, mica powder, zinc borate, antimony trioxide, decabromodiphenyl ethane, barium carbonate, vermicular graphite carbon, polyglycerol ricinoleate, wintergreen oil, 3-hydroxybenzoic acid, lauryl sulfate, plant saponins, and ginger extract; biodegradable bag 1 uses... Composed of a certain proportion of polyethylene resin, epoxy acrylate, calcium carbonate, nano titanium dioxide, benzoin ether, nano montmorillonite, tetrabutyl titanate, ramie fiber, polyvinyl alcohol, tributyl acetate citrate, maifanite powder, diethylene glycol monoethyl ether acetate, mica powder, zinc borate, antimony trioxide, decabromodiphenyl ethane, barium carbonate, vermicular graphite carbon, polyglycerol ricinoleate, wintergreen oil, 3-hydroxybenzoic acid, lauryl sulfate, plant saponins, and ginger extract, it is biodegradable, has strong degradation ability, and is economical and environmentally friendly.

[0030] Several reinforcing ribs 11 are distributed in a grid pattern on the biodegradable bag body 1, and the reinforcing ribs 11 and the biodegradable bag body 1 are formed into a whole by injection molding process;

[0031] The biodegradable bag body 1 and the zipper 12 are bonded together to form a whole.

[0032] The beneficial effects of the above technical solution are as follows:

[0033] Several reinforcing ribs 11 are arranged in a grid pattern on the outside of the biodegradable bag body 1, which improves the strength of the biodegradable bag body 1 and makes the produced zipper bag sturdy and durable. This solves the technical problem of existing zipper bags that only have a bag body and lack a reinforcing structure, resulting in insufficient strength of the zipper bag and easy tearing of the zipper bag.

[0034] Example 2, based on Example 1,

[0035] This invention discloses a device for preparing biodegradable zipper bags, comprising a bag-making mechanism 2, a heat-sealing mechanism 3, a belt conveyor mechanism 4, and a collection mechanism 5 connected sequentially from left to right. The bag-making mechanism 2 uses an existing bag-making machine. The bag-making mechanism 2 transports the finished zipper bags to the heat-sealing mechanism 3 for heat sealing. After heat sealing, the bags are conveyed through the belt conveyor mechanism 4 into the collection mechanism 5 for collection and storage, thus completing the production of the zipper bags.

[0036] like Figure 3 As shown, the heat sealing mechanism 3 includes a base 31. Support plates 37 and support seats 32 are symmetrically arranged on the front and rear sides of the upper end of the base 31. A sliding hole 36 is provided at the upper end of the support seat 32. Placement grooves 33 are provided through the left and right ends of the middle part of the support seat 32, and the sliding hole 36 and the placement grooves 33 are connected. A fixing plate 311 is fixedly connected to the upper end of the support plate 37. The fixed end of a telescopic rod 312 is fixedly installed on the upper end of the fixing plate 311. The movable end of the telescopic rod 312 passes through the fixing plate 311 and the sliding plate 310. The upper end is fixedly connected, and the sliding plate 310 is slidably disposed between the support plates 37 on the front and rear sides. The lower end of the sliding plate 310 is symmetrically provided with springs 39 on the front and rear sides. The springs 39 are fixedly connected to the upper end of the sliding plate 38. The sliding plate 38 is slidably disposed between the support plates 37 on the front and rear sides. The lower end of the sliding plate 38 is symmetrically provided with telescopic spring rods 35 on the front and rear sides. The telescopic spring rods 35 pass through the sliding hole 36 and are fixedly connected to the pressing block 34. The pressing block 34 is slidably disposed in the placement groove 33.

[0037] The lower end of the sliding plate 310 is fixedly connected to the fixed end of the telescopic block 313 and the fixed block 316. The movable end of the telescopic block 313 is fixedly connected to the welding knife 323. The fixed block 316 passes through the opening slot 1 on the sliding plate 38 and is slidably connected to the mating block 318. The mating block 318 is provided with the opening slot 2 319 for the telescopic spring rod 35 to pass through. The inclined end of the mating block 318 is slidably connected to the inclined end of the mating block 314. The mating block 314 is fixedly installed in the lower end of the sliding plate 38. The end of the first 318 of the sliding plate 318 away from the fixed block 316 is rotatably connected to the rotating shaft 320. The rotating shaft 320 is fixedly connected to the first gear sleeve 321 and the fan 322. The first gear sleeve 321 meshes with the first rack 324. The first rack 324 is fixedly set between the support seats 32 on the front and rear sides. The right end of the second sliding plate 38 is rotatably connected to the second gear 315 through the connecting shaft 317. The front and rear sides of the second gear 315 mesh with the first sawtooth on the movable end of the telescopic block 313 and the sawtooth on the fixed block 316, respectively.

[0038] The sliding plate 38 and the telescopic block 313 are distributed on the left and right sides. The left end of the placement groove 33 is set to correspond to the discharge port of the bag making mechanism 2, and the right end of the placement groove 33 is set to correspond to the feed end of the belt conveyor mechanism 4.

[0039] The beneficial effects of the above technical solution are as follows:

[0040] The bag-making machine 2 delivers the finished zipper bag to the placement slot 33 of the heat-sealing mechanism 3. Then, the telescopic rod 312 is activated, causing the sliding plate 1 310 to move downwards. The sliding plate 1 310, through the spring 1 39, drives the sliding plate 2 38, the telescopic block 313, and the fixing block 1 316 to move downwards. The sliding plate 2 38 and the telescopic block 313 are distributed left and right to avoid interference between them. The support plate 37 guides the movement of the sliding plate 1 310 and the sliding plate 2 38. The sliding plate 2 38 drives the telescopic spring rod 35 along the sliding hole 36. As the sliding plate 313 slides downwards, the telescopic spring rod 35 drives the pressing block 34 to flatten both sides of the zipper bag, preventing wrinkles and ensuring its seal. With the downward movement of the sliding plates 310 and 38, the telescopic spring rod 35 compresses, improving the fixing effect of the pressing block 34 on the zipper bag. This continues until the telescopic block 313 drives the welding blade 324 to contact the zipper bag. The installation position of the welding blade 324 on the telescopic block 313 can be adjusted according to specific needs to heat-seal the zipper bag. After heat sealing, the sliding plate 31... 0 continues to move downwards. At this point, the elasticity of the telescopic spring rod 35 is sufficient to prevent further compression. The sliding plate 38 stops moving, and the fixed block 316 continues to move downwards along the opening slot. During this process, it drives the gear 315 to rotate. The gear 315 drives the movable end of the shrinking block 313 to move upwards, thereby driving the welding knife 324 upwards, disengaging it from the zipper bag and completing the heat seal. Simultaneously, the fixed block 316 drives the mating block 318 to move downwards. During this downward movement, the mating block 318 slides left and right under the guidance of the mating block 314. The rotating shaft 320 drives the toothed sleeve 321 and the fan 322 to move via the first rotating block 318. The toothed sleeve 321 is wide enough to ensure that the toothed sleeve 321 and the rack 324 remain engaged during the movement of the toothed sleeve 321, thereby driving the rotating shaft 320 to rotate. The rotating shaft 320 drives the fan 322 to rotate, which increases the airflow on the surface of the zipper bag and cools the zipper bag, thus speeding up the production efficiency of the zipper bag. The heat sealing mechanism 3 of this invention only needs one telescopic rod 312 to complete the heat sealing and cooling steps of the zipper bag, eliminating the need for multiple drive devices and saving costs.

[0041] Example 3

[0042] Based on Example 1, such as Figures 4-6As shown, the collecting mechanism 5 includes a base plate 51. A rack 52 is provided at the lower corner of the base plate 51. The rack 52 passes through the opening at the upper end of the support shell 53 and enters the support cavity 54. One end of the support cavity 54 is fixedly connected to the fixed shaft 57. The fixed shaft 57 is set in the movable cavity 526 of the gear sleeve 56. Several grooves 514 are evenly distributed in the circumferential direction in the movable cavity 526 of the gear sleeve 56. The gear sleeve 56 is fixedly connected to the rotating block 55. The rotating block 55 is rotatably connected to the end of the support cavity 54 away from the fixed shaft 57. A spring 511 is fixedly provided in the groove 514, and a push block 525 is slidably provided in the groove 54. The inclined end of the push block 525 cooperates with the limiting block 527. The limiting block 527 is fixedly connected to the fixed shaft 57. A moving wheel 58 is installed at the lower end of the support shell 53.

[0043] The elastic stiffness of the springs 511 in the various grooves 514 is different;

[0044] A placement seat 59 is fixedly installed on the upper end of the base plate 51. Sliding cavities 510 are provided through the left and right ends of the placement seat 59. Fixing blocks 518 are slidably arranged on the left and right sides of the sliding cavities 510. Fixing blocks 518 are fixedly connected to a baffle 515. A rack 512 is fixedly connected to the end of the fixing block 518 away from the baffle 515. The racks 512 on the left and right sides are vertically distributed and mesh with gears 513. Gears 513 are fixedly connected to the operating lever 523. The rod 523 passes through the rear end of the sliding cavity 510 and the mounting plate 521 and is fixedly connected to the gear 4 524 and the operating block 522. The gear 4 524 meshes with the gear 1 520. The gear 1 520 is fixedly connected to the threaded sleeve 519. The threaded sleeve 519 is rotatably connected to the mounting plate 521. The end of the threaded sleeve 519 away from the mounting plate 521 is threadedly connected to the threaded rod 517. The threaded rod 517 is rotatably connected to the baffle 2 516. The baffle 2 516 is slidably disposed at the upper end of the placement seat 59.

[0045] The side of the placement seat 59 away from the baffle 2 516 is positioned corresponding to the discharge end of the belt conveyor mechanism 4.

[0046] The beneficial effects of the above technical solution are as follows:

[0047] A placement seat 59 is provided for placing the completed zipper bags. Baffles 515 and 516 are used to limit the movement of the zipper bags, facilitating collection. The positions of baffles 515 and 516 can be adjusted according to different zipper bag sizes. When adjusting the position of baffle 515, initially, gear 513 meshes with the vertically distributed racks 512, while gear 524 disengages from gear 520. Rotating the operating block 522 causes the operating lever 523 to rotate, which in turn rotates gear 513. Gear 513 then moves the racks 512 on both sides in opposite directions, which in turn moves the fixing block 518. Fixed block 2 518 drives baffle 1 515 to move, thus achieving the purpose of adjusting the position of baffle 1 515. When adjusting baffle 2 516, pull the operating block 522 outward, which drives the operating rod 523 to move. The operating rod 523 drives gear 4 524 to mesh with gear 1 520. At this time, gear 3 513 disengages from rack 3 512. Then rotate the operating block 522, which drives gear 4 524 to rotate. Gear 4 524 drives gear 1 520 to rotate. Gear 1 520 drives threaded sleeve 519 to rotate. Threaded sleeve 519 drives threaded rod 517 to move. Threaded rod 517 drives baffle 2 516 to slide along the placement seat 59, thus achieving the purpose of adjusting the position of baffle 2 516.

[0048] When the number of zipper bags in the placement seat 59 reaches a certain amount, the weight of the zipper bags causes the base plate 51 to move downwards. The base plate 51 then causes the rack 52 to move downwards. The rack 52 enters the support cavity 54 through the opening at the upper end of the support shell 53. The rack 52 causes the toothed sleeve 56 to rotate, which in turn causes the push block 525 to rotate. The inclined end of the push block 525 contacts the limiting block 527, causing the limiting block 527 to enter the groove 514. The spring 511 is compressed, and the elastic stiffness of the spring 511, which is set along the rotation direction of the magnet 56, gradually increases. This causes the toothed sleeve 56 to stop rotating after the next push block 525 contacts the limiting block 527, and the rack 52 cannot move. This keeps the base plate 51 stationary, achieving the goal of gradually moving the base plate 51 downwards as the number of zipper bags increases. This prevents the zipper bags from piling up too high, which would prevent the belt conveyor mechanism 4 from conveying the zipper bags to the collection mechanism 5 and affect the collection effect of the collection mechanism 5.

[0049] Example 4

[0050] Based on Example 1, such as Figure 7 As shown, the inlet of the bag-making mechanism 2 is equipped with several feeding rollers 6 and tensioning rollers 7; in the prior art, film-like materials can be formed into bags through the bag-making mechanism.

[0051] Speed ​​sensor: The speed sensor is installed on the feeding roller 6 to detect the speed of the feeding roller 6;

[0052] Alarm: The alarm is installed on the outside of bag making machine 2;

[0053] Controller: The controller is electrically connected to the speed sensor and alarm;

[0054] The controller operates the alarm based on the detection value of the speed sensor, including the following steps:

[0055] Step 1: The controller calculates the theoretical moment of inertia of the material conveyed on the feeding roller 6 according to formula (1);

[0056]

[0057] This represents the theoretical moment of inertia of the material being conveyed on the feeding roller 6. The width of the material conveyed on the feeding roller 6. The density of the material conveyed on the feeding roller 6. The radius of the feeding roller 6 is... The density of the feeding roller 6, The thickness of the material conveyed on the feeding roller 6;

[0058] Step 2: The controller calculates the theoretical moment of inertia of the material conveyed on the feeding roller 6 according to formula (1), the rotational speed of the feeding roller 6 detected by the speed sensor, and the conveying stability coefficient of the material conveyed on the feeding roller 6 according to formula (2). The controller compares the conveying stability coefficient of the material conveyed on the feeding roller 6 with the preset stability coefficient. If the calculated conveying stability coefficient of the material is less than the preset stability coefficient, the controller controls the alarm to sound.

[0059]

[0060] in, The conveying stability coefficient of the material conveyed on the feeding roller 6. The operating power of the motor connected to the feeding roller 6. The value detected by the speed sensor. The preset tension force for the material conveyed on the feeding roller 6;

[0061] In formula (1) Let be the moment of inertia of the feeding roller 6, in formula (2) The theoretical tension force of the material conveyed on the feeding roller 6 is given. The conveying stability coefficient of the material conveyed on the feeding roller 6 is the ratio of the preset tension force of the material conveyed on the feeding roller 6 to the theoretical tension force of the material conveyed on the feeding roller 6. If the preset tension force of the material conveyed on the feeding roller 6 is less than the theoretical tension force of the material conveyed on the feeding roller 6, the material conveyed on the feeding roller 6 may wrinkle or even break, affecting the subsequent production steps of the material conveyed on the feeding roller 6. The preset stability coefficient ranges from 0.9 to 1. Considering the detection accuracy of the sensor and external influencing factors, the preset stability coefficient is set to 0.9. If the calculated conveying stability coefficient of the material conveyed on the feeding roller 6 is less than 0.9, it indicates that the preset tension force of the material conveyed on the feeding roller 6 is less than the theoretical tension force of the material conveyed on the feeding roller 6, and the controller will activate the alarm.

[0062] The beneficial effects of the above technical solution are as follows:

[0063] By setting several feeding rollers 6 and tensioning wheels 7 at the feed inlet of the bag making machine 1, the purpose of feeding the raw materials of the bag is realized. The speed sensor is set on the feeding roller 6 to detect the speed of the feeding roller 6. The controller calculates the theoretical moment of inertia of the material conveyed on the feeding roller 6 according to formula (1). The controller calculates the theoretical moment of inertia of the material conveyed on the feeding roller 6 according to formula (1), the speed of the feeding roller 6 detected by the speed sensor, and the conveying stability coefficient of the material conveyed on the feeding roller 6 according to formula (2). The controller compares the conveying stability coefficient of the material conveyed on the feeding roller 6 with the preset stability coefficient. If the calculated conveying stability coefficient of the material is less than the preset stability coefficient, the controller controls the alarm to sound an alarm, reminding the user to adjust the position of the tensioning wheel 7 to keep the material on the feeding roller 6 flat and evenly fed, and to avoid wrinkles or breakage of the material on the feeding roller 6.

[0064] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. An apparatus for preparing a biodegradable zipper pull bag, characterized in that, It includes a bag-making mechanism (2), a heat-sealing mechanism (3), a belt conveyor mechanism (4), and a collection mechanism (5) connected from left to right. A biodegradable zipper bag includes a biodegradable bag body (1), with several reinforcing ribs (11) symmetrically arranged at the front and rear ends of the biodegradable bag body (1), and a zipper (12) provided at the upper end of the biodegradable bag body (1), with a zipper (13) installed on the zipper (12). The heat sealing mechanism (3) includes a base (31). A support plate (37) and a support seat (32) are symmetrically arranged on the front and rear sides of the upper end of the base (31). A sliding hole (36) is provided at the upper end of the support seat (32). Placement grooves (33) are provided through the middle left and right ends of the support seat (32). The sliding hole (36) and the placement grooves (33) are connected. A fixing plate (311) is fixedly connected to the upper end of the support plate (37). The fixing end of a telescopic rod (312) is fixedly installed on the upper end of the fixing plate (311). The telescopic rod (312)... The movable end of the sliding plate (311) is fixedly connected to the upper end of the sliding plate (310). The sliding plate (310) is slidably arranged between the support plates (37) on the front and rear sides. The lower end of the sliding plate (310) is symmetrically provided with springs (39) on the front and rear sides. Springs (39) are fixedly connected to the upper end of the sliding plate (38). The lower end of the sliding plate (38) is symmetrically provided with telescopic spring rods (35) on the front and rear sides. The telescopic spring rods (35) pass through the sliding hole (36) and are fixedly connected to the pressing block (34). The lower end of sliding plate 1 (310) is fixedly connected to the fixed end of telescopic block (313) and fixed block 1 (316). The movable end of telescopic block (313) is fixedly connected to welding knife (323). Fixed block 1 (316) passes through the opening slot 1 on sliding plate 2 (38) and is slidably connected to mating block 1 (318). The inclined end of mating block 1 (318) is slidably connected to the inclined end of mating block 2 (314). Mating block 2 (314) is fixedly set in the middle of the lower end of sliding plate 2 (38). Mating block 1 (318) is far away from fixed block 1 (316). One end of 316 is rotatably connected to the rotating shaft (320). The rotating shaft (320) is fixedly connected to the gear sleeve (321) and the fan (322). The gear sleeve (321) meshes with the rack (324). The rack (324) is fixedly set between the support seats (32) on the front and rear sides. The right end of the sliding plate (38) is rotatably connected to the gear (315) through the connecting shaft (317). The front and rear sides of the gear (315) mesh with the saw teeth on the movable end of the telescopic block (313) and the saw teeth on the fixed block (36) respectively.

2. The apparatus for preparing a biodegradable zipper pull bag according to claim 1, characterized in that, The biodegradable bag body (1) is composed of a certain proportion of polyethylene resin, epoxy acrylate, calcium carbonate, nano titanium dioxide, benzoin ether, nano montmorillonite, tetrabutyl titanate, ramie hemp bone, polyvinyl resin alcohol, acetylsic acid tributyl ester, maifan stone powder, diethylene glycol monoethyl ether acetate, mica powder, zinc borate, antimony trioxide, decabromodiphenyl ethane, barium carbonate, vermicular graphite carbon, polyglycerol ricinoleate, wintergreen oil, 3-hydroxybenzoic acid, lauryl sulfate, plant saponins, and ginger extract.

3. The apparatus for preparing a biodegradable zipper pull bag according to claim 1, characterized in that, Several reinforcing ribs (11) are distributed in a grid pattern on the biodegradable bag body (1).

4. The apparatus for preparing a biodegradable zipper pull bag according to claim 3, characterized in that, The reinforcing rib (11) and the biodegradable bag body (1) are formed into a whole by injection molding.

5. The apparatus for preparing a biodegradable zipper pull bag according to claim 1, characterized in that, The biodegradable bag (1) and the zipper (12) are bonded together to form a whole.

6. The apparatus for preparing a biodegradable zipper pull bag according to claim 1, characterized in that, The collecting mechanism (5) includes a base plate (51). A rack (52) is provided at the lower corner of the base plate (51). The rack (52) passes through the opening at the upper end of the support shell (53) and enters the support cavity (54). One end of the support cavity (54) is fixedly connected to a fixed shaft (57). The fixed shaft (57) is located in the movable cavity (526) of the gear sleeve (56). Several grooves (514) are evenly distributed circumferentially in the movable cavity (526) of the gear sleeve (56). The second sleeve (56) is fixedly connected to the rotating block (55). The rotating block (55) is rotatably connected to the end of the support cavity (54) away from the fixed shaft (57). The second spring (511) is fixedly installed in the groove (514), and the push block (525) is slidably installed in the groove (54). The inclined end of the push block (525) cooperates with the limiting block (527). The limiting block (527) is fixedly connected to the fixed shaft (57). The lower end of the support shell (53) is equipped with a moving wheel (58).

7. The apparatus for preparing a biodegradable zipper pull bag according to claim 6, characterized in that, A placement seat (59) is fixedly installed on the upper end of the base plate (51). Sliding cavities (510) are provided through the left and right ends of the placement seat (59). Fixing blocks (518) are slidably provided on the left and right sides of the sliding cavities (510). Fixing blocks (518) are fixedly connected to baffles (515). A rack (512) is fixedly connected to the end of fixing blocks (518) away from baffles (515). The rack (512) meshes with gears (513). Gears (513) are fixedly connected to the operating rod (523). The operating rod (523) passes through the sliding cavity. The rear end of (510) and the mounting plate (521) are fixedly connected to the gear four (524) and the operating block (522). The gear four (524) meshes with the gear one (520). The gear one (520) is fixedly connected to the threaded sleeve (519). The threaded sleeve (519) is rotatably connected to the mounting plate (521). The end of the threaded sleeve (519) away from the mounting plate (521) is threadedly connected to the threaded rod (517). The threaded rod (517) is rotatably connected to the baffle two (516). The baffle two (516) is slidably set at the upper end of the placement seat (59).

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