CN-224224658-U - Edge folding device for plastic bag production

Abstract

The utility model mainly relates to the technical field of plastic bag processing, in particular to a flanging device for plastic bag production, which comprises symmetrically distributed supporting frames, wherein a first mounting plate and a second mounting plate are respectively arranged on opposite sides of the two supporting frames, a gap between the first mounting plate and the second mounting plate is gradually reduced from top to bottom, a plurality of first guide rods are rotatably arranged between the two first mounting plates, a plurality of second guide rods are rotatably arranged between the two second mounting plates, the first guide rods are linearly and uniformly distributed along the length direction of the first mounting plates, the second guide rods are linearly and uniformly distributed along the length direction of the second mounting plates, a movable plate is arranged on one supporting frame, and the length of a rotating frame fixed on the movable plate is gradually increased from top to bottom, so that each flanging wheel can gradually extrude plastic bags from shallow to deep, and the deformation of the plastic bags caused by large extrusion depth is avoided to influence the processing yield.

Inventors

• WANG QIAN
• XU JIE
• FAN KAILI
• Qi zhonghao
• PENG CHENGXIN

Assignees

• 安徽欣宏新型包装有限公司

Dates

Publication Date

20260512

Application Date

20250612

Claims (5)

1. 1. The flanging device for plastic bag production is characterized by comprising symmetrically distributed supporting frames (1), wherein a first mounting plate (2) and a second mounting plate (3) are respectively arranged on opposite sides of the two supporting frames (1), gaps between the first mounting plate (2) and the second mounting plate (3) are gradually reduced from top to bottom, a plurality of first guide rods (4) are rotatably arranged between the two first mounting plates (2), a plurality of second guide rods (5) are rotatably arranged between the two second mounting plates (3), the first guide rods (4) are linearly and uniformly distributed along the length direction of the first mounting plate (2), and the second guide rods (5) are linearly and uniformly distributed along the length direction of the second mounting plate (3); One of them install fly leaf (6) on support frame (1), fly leaf (6) are located between first mounting panel (2) and second mounting panel (3) of this support frame (1), and can be driven along the axial displacement of first guide rod (4) and second guide rod (5), one side that support frame (1) was kept away from to fly leaf (6) is fixed with rotating frame (7) of a plurality of vertical equidistance distributions, rotating frame (7) from top to bottom length gradually increases, every rotating frame (7) tip all is equipped with hem wheel (8).
2. 2. The flanging device for plastic bag production according to claim 1, wherein the movable plate (6) is in threaded connection with a driving screw rod (9) and is fixedly provided with a guide slide rod (10), and the driving screw rod (9) and the guide slide rod (10) extend along the axial directions of the first guide rod (4) and the second guide rod (5) and are respectively in rotary connection and sliding connection with the corresponding support frame (1).
3. 3. The flanging device for plastic bag production according to claim 2, characterized in that the end of the driving screw (9) is provided with a first grip (11) and symmetrically distributed with the guiding slide bar (10) on the movable plate (6).
4. 4. The flanging device for plastic bag production according to claim 1, wherein the first mounting plate (2) and the second mounting plate (3) are respectively connected with the corresponding supporting frame (1) through a first rotating shaft (12) and a second rotating shaft (13), and a group of the first rotating shaft (12) and the second rotating shaft (13) which are positioned on the same side are mutually meshed and driven through gears (14) which are respectively fixed.
5. 5. The flanging device for plastic bag production according to claim 4, wherein one of the first rotating shaft (12) or the second rotating shaft (13) is fixed with a worm wheel (15), the worm wheel (15) is in meshed transmission with a worm (16), one end of the worm (16) is provided with a second grip (17), and the worm is in rotary connection with a mounting frame (18) arranged on the corresponding support frame (1).

Description

Edge folding device for plastic bag production Technical Field The utility model mainly relates to the technical field of plastic bag processing, in particular to a flanging device for plastic bag production. Background In the production of plastic bags, edge folding is a core process for forming an M-shaped organ edge (also called edge inserting or organ bag structure), and is mainly realized through equipment such as edge folding guide cylinders. The edges at two sides of the flat pocket are folded inwards to change the pocket body from an oval opening into a rectangle, the folded edges form a closed structure similar to an organ leaf, the occupied space during storage and transportation is obviously reduced, the three-dimensional edges formed after folding can improve the compressive capacity of the pocket body, the pocket wall is prevented from being attached, the content is convenient to take and place, and the bag is particularly suitable for dustproof packages or scenes needing to be placed vertically. The utility model discloses a publication number is CN214688184U, discloses a cut-in edge device for plastic bag hem, including inserting limit machine frame and installing the leading truck on work platform, still include stand, adjusting screw and hem wheelset, stand symmetry fixed mounting is in inserting limit machine frame both sides, adjusting screw passes through the screw thread and is connected with the stand and stretches out the stand, adjusting screw outwards one end is fixed and is provided with the hand wheel, and the other end is fixed and is provided with the kicking block, the fixed kicking block seat that is provided with of hem wheelset, the kicking block falls in the kicking block seat and the outer terminal surface is hugged closely the kicking block seat with coaxial matching, the kicking block coaxial is provided with the clamp plate that opens, the clamp plate that opens is located the kicking block top and through bolt and kicking block seat fixed connection, the hem wheelset is provided with a plurality of width progressively and can free rotation from lower supreme. In the prior art, the two sides of the bag body can be linearly, uniformly and symmetrically folded inwards, so that the positioning accuracy of the inserting edge is improved, and the qualification rate of products is further improved. But each edge folding wheel is positioned on a unified vertical line, so that the edge folding of the bag body is formed at one time, the bag body is easy to deform when the edge folding depth is large, and the yield is further affected. Disclosure of utility model 1. The utility model aims to solve the technical problems that: The utility model provides a flanging device for plastic bag production, which is used for solving the technical problems in the background technology. 2. The technical scheme is as follows: In order to achieve the purpose, the technical scheme includes that the flanging device for plastic bag production comprises symmetrically-distributed supporting frames, wherein first mounting plates and second mounting plates are respectively arranged on opposite sides of the two supporting frames, gaps between the first mounting plates and the second mounting plates are gradually reduced from top to bottom, a plurality of first guide rods are rotatably arranged between the two first mounting plates, a plurality of second guide rods are rotatably arranged between the two second mounting plates, the first guide rods are linearly and uniformly distributed along the length direction of the first mounting plates, and the second guide rods are linearly and uniformly distributed along the length direction of the second mounting plates; One of them install the fly leaf on the support frame, the fly leaf is located between the first mounting panel and the second mounting panel of this support frame, and can be driven to follow the axial displacement of first guide rod and second guide rod, one side that this support frame was kept away from to the fly leaf is fixed with the rotating turret of a plurality of vertical equidistance distributions, the rotating turret from top to bottom length increases gradually, every the tip of rotating turret all is equipped with the hem wheel. Further, the movable plate is connected with a driving screw rod in a threaded manner, a guide slide rod is fixedly installed on the movable plate, and the driving screw rod and the guide slide rod extend along the axial directions of the first guide rod and the second guide rod and are respectively connected with the corresponding support frame in a rotating manner and in a sliding manner. Further, the end part of the driving screw rod is provided with a first handle, and the first handle and the guiding slide rod are symmetrically distributed on the movable plate. Further, the first mounting plate and the second mounting plate are respectively connected with the corresponding supporting frame in a rotat