A plastic bag production equipment that can flatten plastic bags

Abstract

This utility model discloses a plastic bag production device capable of flattening plastic bags, including a base. The flattening mechanism includes fixed plates on both sides of the top of the base. Rotary rods are rotatably connected to the top and bottom of one end of the two fixed plates, which are close to each other. Flattening rollers are fixed to the outer walls of both rotating rods. Mounting plates are fixed to one end of each of the two fixed plates. A common top plate is fixed to the top of the two mounting plates, which are close to each other. The top and bottom sides of the top plate have communicating holes, and sliding rods slide within these holes. Two flattening rods are provided on the two mounting plates, with the lower flattening rod's ends fixedly connected to one side of the two mounting plates, and the top of the other flattening rod fixed to the bottom of the two sliding rods. This utility model achieves the effect of flattening plastic bags and improves the flattening efficiency and production efficiency by using two flattening rods and two flattening rollers for secondary flattening.

Description

Technical Field

[0001] This utility model relates to the field of plastic bag production technology, and in particular to a plastic bag production equipment that can flatten plastic bags. Background Technology

[0002] Plastic bags are an indispensable part of modern daily life, widely used in various situations for holding food, daily necessities, and other items. Due to their low price, portability, and large capacity, plastic bags are widely used in shopping and packaging. However, the specialized equipment required to produce these practical plastic bags cannot be ignored; they play a crucial role in ensuring the quality and efficiency of plastic bag production.

[0003] Currently, thanks to advanced plastic bag production equipment, we have significantly improved production efficiency during the manufacturing process. However, wrinkles often occur during the production of plastic bags, which not only affects the appearance of the product but may also cause problems in the subsequent rolling process. Therefore, there is an urgent need for plastic bag production equipment that can flatten plastic bags to solve these problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a plastic bag production equipment that can flatten plastic bags.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A plastic bag production equipment for flattening plastic bags includes a base. A leveling mechanism for flattening the plastic bags is provided at one top end of the base. The leveling mechanism includes fixed plates on both sides of the top end of the base. Rotary rods are rotatably connected to the top and bottom of one end of the two fixed plates, which are close to each other. Leveling rollers are fixed to the outer walls of both rotating rods. Mounting plates are fixed to one end of each of the two fixed plates. A common top plate is fixed to the top of the two mounting plates, which are close to each other. The top and bottom sides of the top plate have communicating holes, and sliding rods are slidably installed within the holes. Two pressing rods are provided on the two mounting plates, with the lower pressing rod having its ends fixedly connected to one side of the two mounting plates. The top of the other pressing rod is fixed to the bottom of the two sliding rods, and the top of the pressing rod is flush with one of the leveling rollers. The two pressing rods can pre-straighten and level the plastic bags.

[0007] Preferably, springs are fixed on both sides of the bottom of the top plate, the bottom of the two springs are fixed to the top of one of the flattening rods, and the two springs are respectively located on the outer wall surface of the two sliding rods.

[0008] Preferably, the tops of the two slide bars are fixed with the same connecting plate.

[0009] Preferably, gears are fixed to one side of the outer wall of both rotating rods, and the two gears mesh with each other.

[0010] Preferably, a mounting bracket is fixed to one bottom side of one of the fixing plates, a motor is mounted on the side of the mounting bracket, and the output shaft of the motor is fixedly connected to one end of one of the rotating rods. A winding mechanism for winding up the plastic bag is provided at the other end of the two fixing plates that are close to each other.

[0011] Preferably, the winding mechanism includes a rotating shaft rotatably connected to one side of two fixed plates. A first limiting hole is provided on the top of the side of the two rotating shafts that are close to each other, and a limiting block is inserted into the interior of the two first limiting holes. The same winding roller is fixed to the side of the two limiting blocks that are close to each other. A sleeve is rotatably connected to the outer wall of the side of the two rotating shafts that are close to each other, and a second limiting hole communicating with the first limiting hole is provided on the side of the two sleeves that are close to each other. A rubber pad to increase friction is provided at the position where the sleeve contacts the rotating shaft. The limiting block can pass through the second limiting hole and be inserted into the first limiting hole, thus limiting the winding roller and achieving the function of quick installation and disassembly.

[0012] Preferably, one side of the other fixed plate is provided with two synchronous pulleys, the outer walls of the two synchronous pulleys are provided with matching synchronous belts, one of the synchronous pulleys is fixedly connected to the other end of one of the rotating rods, and the other synchronous pulley is fixedly connected to one side of one of the rotating shafts.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. Due to the adoption of a leveling mechanism, the connecting plate is pulled and the sliding rod drives the flattening rod to move upward. Then, one end of the plastic bag is passed between the two flattening rods. The connecting plate is then released, and the two flattening rods press the plastic bag tightly, mimicking the effect of an iron. The plastic bag is then passed between the two leveling rollers, thus achieving the effect of leveling the plastic bag. The two flattening rods and two leveling rollers perform secondary leveling of the plastic bag, improving the leveling efficiency of the plastic bag and increasing production efficiency.

[0015] 2. Due to the adoption of a winding mechanism, the sleeve is rotated to connect the second limiting hole and the first limiting hole. Then, the limiting block passes through the second limiting hole and is inserted into the first limiting hole. Then, the second limiting hole and the first limiting hole are offset by rotating the sleeve. This achieves the effect of quick installation and removal of the winding roller, reduces downtime, and improves production efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a plastic bag production equipment that can flatten plastic bags, as proposed in this utility model.

[0017] Figure 2 This is a partial structural diagram of the leveling mechanism of a plastic bag production equipment that can level plastic bags, as proposed in this utility model.

[0018] Figure 3 This is a partial structural diagram of the winding mechanism of a plastic bag production equipment that can flatten plastic bags, as proposed in this utility model.

[0019] Figure 4 This is a partially exploded structural diagram of the winding mechanism of a plastic bag production equipment that can flatten plastic bags, as proposed in this utility model.

[0020] In the diagram: 1. Base; 2. Fixing plate; 201. Rotating rod; 202. Leveling roller; 203. Gear; 204. Mounting frame; 205. Motor; 3. Take-up roller; 301. Synchronous pulley; 302. Synchronous belt; 303. Sleeve; 304. Limiting block; 305. Rotating shaft; 306. First limiting hole; 307. Second limiting hole; 4. Mounting plate; 401. Flattening rod; 402. Top plate; 403. Sliding rod; 404. Connecting plate; 405. Spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-4 A plastic bag production equipment that can flatten plastic bags includes a base 1, and a flattening mechanism for flattening plastic bags is provided at one end of the top of the base 1.

[0023] The leveling mechanism includes two fixed plates 2 fixed to the top of one end of the base 1. The top and bottom of the two fixed plates 2 are rotatably connected to the top and bottom of one end of the side of the two fixed plates 2 that are close to each other. The outer walls of the two rotating rods 201 are fixed with leveling rollers 202. The plastic bag passes between the two leveling rollers 202 and is leveled. The two fixed plates 2 are each fixed to one end of the mounting plate 4. The top of the two mounting plates 4 that are close to each other is fixed with the same top plate 402. The top and bottom sides of the top plate 402 are provided with communicating holes, and the sliding rods 403 are slidably provided in the holes. The two mounting plates 4 that are close to each other are provided with two flattening rods 401. The two ends of the lower flattening rod 401 are fixedly connected to one side of the two mounting plates 4. The top of the other flattening rod 401 is fixed to the bottom of the two sliding rods 403, and the top of the flattening rod 401 is flush with one of the leveling rollers 202. The two flattening rods 401 can pre-straighten and level the plastic bag.

[0024] In this utility model, springs 405 are fixed on both sides of the bottom of the top plate 402. The bottom of the two springs 405 is fixed to the top of one of the flattening rods 401, and the two springs 405 are respectively located on the outer wall surface of the two sliding rods 403.

[0025] In this invention, the tops of the two slide rods 403 are fixed with the same connecting plate 404.

[0026] In this utility model, gears 203 are fixed on one side of the outer wall of both rotating rods 201, and the two gears 203 mesh with each other.

[0027] In this utility model, a mounting bracket 204 is fixed to the bottom of one side of one of the fixing plates 2, a motor 205 is installed on the side of the mounting bracket 204, and the output shaft of the motor 205 is fixedly connected to one end of one of the rotating rods 201. The other ends of the two fixing plates 2 that are close to each other are provided with a winding mechanism for winding up the plastic bag.

[0028] In this utility model, the winding mechanism includes a rotating shaft 305 rotatably connected to one side of two fixed plates 2. The top of the two rotating shafts 305 that are close to each other is provided with a first limiting hole 306, and a limiting block 304 is inserted into the two first limiting holes 306. The same winding roller 3 is fixed on the side of the two limiting blocks 304 that are close to each other. A sleeve 303 is rotatably connected to the outer wall of the side of the two rotating shafts 305 that are close to each other. The side of the two sleeves 303 that are close to each other is provided with a second limiting hole 307 that communicates with the first limiting hole 306. The limiting block 304 can pass through the second limiting hole 307 and be inserted into the first limiting hole 306 to limit the winding roller 3, thereby achieving the function of quick installation and disassembly. A rubber pad is provided at the position where the sleeve 303 contacts the rotating shaft 305 to increase friction. The function of the rubber pad is to allow the sleeve 303 to be rotated manually only, so as to prevent the winding roller 3 from falling off during the winding of the plastic bag.

[0029] In this utility model, two synchronous pulleys 301 are provided on one side of another fixed plate 2. The outer wall of the two synchronous pulleys 301 is provided with a matching synchronous belt 302. One of the synchronous pulleys 301 is fixedly connected to the other end of one of the rotating rods 201, and the other synchronous pulley 301 is fixedly connected to one side of one of the rotating shafts 305.

[0030] Working principle: In use, first pull the connecting plate 404, which will move the two sliding rods 403 upwards. Simultaneously, the two sliding rods 403 will move the flattening rods 401 upwards. Then, pass one end of the plastic bag between the two flattening rods 401. Release the connecting plate 404; at this point, the spring 405 will cause the flattening rods 401 to return to their original position. The two flattening rods 401 will then clamp the top and bottom of the plastic bag. Finally, pull the plastic bag through the two leveling rollers 202. Then rotate the two sleeves 303 to align the second limiting hole 307 with the first limiting hole 306. Next, the limiting blocks 304 on both sides of the take-up roller 3 pass through the second limiting hole 307 and engage with the first limiting hole 306. Then rotate the sleeves 303 to offset the second limiting hole 307 from the first limiting hole 306. The rubber pad between the sleeves 303 and the shaft 305 increases the friction between the outer walls of the sleeves 303 and the shaft 305, preventing the sleeves from... The 303 can be rotated freely, allowing for quick installation and removal of the take-up roller 3. One end of the plastic bag is then fixed to the outer wall of the take-up roller 3. The motor 205 is then started, which drives one of the rotating rods 201 to rotate and engages one of the gears 203 with another gear 203. The two leveling rollers 202 rotate synchronously in opposite directions. One of the rotating rods 201 drives one of the synchronous pulleys 301 to rotate, which in turn drives the other synchronous pulley 301 to rotate via the synchronous belt 302, which in turn drives the rotating shaft 305 to rotate. The take-up roller 3 then rotates and takes up the plastic bag. During the take-up process, the two leveling rollers 202 level the plastic bag. The two pressing rods 401 contact the top and bottom of the plastic bag and perform initial leveling, followed by further leveling by the leveling rollers 202.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A plastic bag production apparatus capable of flattening a plastic bag, comprising a base (1), characterized in that, The base (1) is provided with a leveling mechanism at one end of its top to level the plastic bag. The leveling mechanism includes two fixed plates (2) fixed on both sides of the top of the base (1). The top and bottom of one end of the two fixed plates (2) are rotatably connected to a rotating rod (201). The outer walls of the two rotating rods (201) are fixed with leveling rollers (202). One end of the two fixed plates (2) is fixed with an mounting plate (4). The top of the two mounting plates (4) is fixed with the same top plate (402). The top and bottom sides of the top plate (402) are provided with communicating holes, and a sliding rod (403) is slidably provided in the holes. The two mounting plates (4) are provided with two flattening rods (401). The two ends of the flattening rod (401) located below are fixedly connected to one side of the two mounting plates (4). The top of the other flattening rod (401) is fixed to the bottom of the two sliding rods (403), and the top of the flattening rod (401) is flush with one of the leveling rollers (202).

2. The apparatus for producing a plastic bag which can be flattened according to claim 1, wherein Springs (405) are fixed on both sides of the bottom of the top plate (402). The bottom of the two springs (405) is fixed to the top of one of the flattening rods (401), and the two springs (405) are respectively located on the outer wall surface of the two sliding rods (403).

3. The apparatus for producing a plastic bag which can be flattened according to claim 1, wherein The tops of the two slide bars (403) are fixed with the same connecting plate (404).

4. The apparatus for producing a plastic bag which can be flattened according to claim 1, wherein Gears (203) are fixed to one side of the outer wall of each of the two rotating rods (201), and the two gears (203) mesh with each other.

5. The apparatus for producing a plastic bag which can be flattened according to claim 4, wherein One of the fixing plates (2) has a mounting bracket (204) fixed to one side bottom. A motor (205) is mounted on the side of the mounting bracket (204), and the output shaft of the motor (205) is fixedly connected to one end of one of the rotating rods (201). The other ends of the two fixing plates (2) that are close to each other are provided with a winding mechanism for winding up the plastic bag.

6. The apparatus for producing a plastic bag which can be flattened according to claim 5, wherein The winding mechanism includes a rotating shaft (305) rotatably connected to one side of two fixed plates (2). The top of the two rotating shafts (305) that are close to each other are provided with a first limiting hole (306), and a limiting block (304) is inserted into the two first limiting holes (306). The same winding roller (3) is fixed on the side of the two limiting blocks (304) that are close to each other. A sleeve (303) is rotatably connected to the outer wall of the side of the two rotating shafts (305) that are close to each other. The side of the two sleeves (303) that are close to each other is provided with a second limiting hole (307) that communicates with the first limiting hole (306). A rubber pad to increase friction is provided at the position where the sleeve (303) contacts the rotating shaft (305).

7. The apparatus for producing a plastic bag which can be flattened according to claim 6, wherein Two synchronous pulleys (301) are provided on one side of another fixed plate (2). The outer walls of the two synchronous pulleys (301) are provided with matching synchronous belts (302). One of the synchronous pulleys (301) is fixedly connected to the other end of one of the rotating rods (201), and the other synchronous pulley (301) is fixedly connected to one side of one of the rotating shafts (305).

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