Creasing mechanism for processing composite packaging bag

Abstract

The utility model discloses a crease processing mechanism for a composite packaging bag, which belongs to the technical field of packaging mechanical equipment and comprises a mounting component, a conveying electric roller mounted on the mounting component and used for driving the composite packaging bag, a tensioning component mounted on the mounting component and used for tensioning the composite packaging bag, and an auxiliary roller mounted on the mounting component. And an adjustable pressing and folding assembly is mounted on the mounting assembly. By means of the mode, the composite packaging bag is tightened through the tensioning assembly, so that the composite packaging bag cannot slip and is more accurate in crease during transportation, and meanwhile redundant wrinkles cannot be generated when the composite packaging bag is straightened and flattened to be pressed and folded; the size of the packaging bag is adjusted through the adjustable pressing and folding assembly, creases at the two ends of the composite packaging bag can be pressed at a time, meanwhile, for some composite packaging bags which are not prone to being folded, the two sets of pressing and folding plates at the inner ends of the composite packaging bags can be adjusted through the adjustable pressing and folding assembly to be pressed and folded twice, and the pressing and folding effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of packaging machinery and equipment technology, specifically to a crease-forming mechanism for composite packaging bags. Background Technology

[0002] With the rapid development of the modern packaging industry, composite packaging bags have been widely used in many fields such as food, pharmaceuticals, daily chemicals, and electronic components due to their integration of the excellent properties of multiple materials. When processing composite packaging bags, creasing equipment is often used to create creasing structures through an integrated extrusion process, facilitating subsequent die-cutting and bag-separation processes.

[0003] Current technology lacks an effective tensioning design, failing to taut the bags during composite packaging bag conveying. This makes the bags prone to slipping on the conveyor rollers, leading to deviations in crease placement and significantly reducing accuracy, making it difficult to meet high-precision packaging requirements. Furthermore, the folding process also causes wrinkles in the material. Wrinkles not only affect the appearance of the bags but may also weaken their structural strength, increasing the defect rate.

[0004] Furthermore, traditional techniques often lack flexible crease size adjustment capabilities. When dealing with composite packaging bags of different sizes, it is often necessary to change the entire set of folding molds or equipment, making the operation extremely cumbersome and time-consuming. The inability to complete the appropriate crease pressing at both ends of the composite packaging bag in one go slows down the overall production pace.

[0005] For composite packaging bags that are rigid and difficult to bend, existing methods usually only involve applying excessive pressure without a targeted, step-by-step folding strategy. This not only makes it difficult to guarantee the desired folding effect but also easily damages the packaging bag due to excessive pressure, resulting in material waste and increased production costs.

[0006] Based on this, the present invention designs a crease-forming mechanism for composite packaging bags to solve the above problems. Utility Model Content

[0007] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a crease processing mechanism for composite packaging bags.

[0008] The technical solution adopted to solve the above technical problems is:

[0009] A crease-forming mechanism for composite packaging bags includes an assembly, a conveying electric roller for driving the composite packaging bag, a tensioning assembly for tensioning the composite packaging bag, an auxiliary roller, and an adjustable crease-forming assembly for adjusting the crease size.

[0010] The adjustable folding assembly includes a driving assembly, an adjusting assembly, and a folding assembly. The driving assembly is connected to the mounting assembly, the adjusting assembly is connected to both the mounting assembly and the driving assembly, and the folding assembly is connected to the adjusting assembly.

[0011] The above technical solution tightens the composite packaging bag using a tensioning component, preventing slippage and ensuring more precise creases during transportation. Simultaneously, by straightening and smoothing the composite packaging bag, excess wrinkles are prevented during folding. The adjustable folding component allows for one-time folding of both ends of the composite packaging bag according to its size. Furthermore, for composite packaging bags that are difficult to fold, the adjustable folding component can be used to adjust the two sets of folding plates at the inner end for double folding, improving the folding effect.

[0012] Furthermore, the mounting assembly includes a mounting base and a first mounting bracket, the first mounting bracket being fixedly mounted on the side wall of the mounting base, the mounting base being connected to an adjustment assembly, and the first mounting bracket being connected to a drive assembly.

[0013] Furthermore, the conveying electric rollers are arranged in two sets, which are rotatably mounted on the mounting ears at the front and rear ends of the mounting base, respectively.

[0014] The above technical solution enables the electric conveyor roller to be used to convey composite packaging bags.

[0015] Furthermore, the tensioning assembly is arranged in two sets, one in front of the other. The tensioning assembly includes a connecting frame, a follower roller, a first slide rod, a spring, and a second mounting frame. The follower roller is rotatably mounted on the inner end of the connecting frame. Two sets of the first slide rod are arranged in the left and right and fixedly mounted on the upper end surface of the connecting frame. The first slide rod is slidably connected to the second mounting frame. Two sets of springs are arranged in the left and right and respectively sleeved on the first slide rod. The lower end of the spring is fixedly connected to the upper end surface of the connecting frame, and the upper end of the spring is fixedly connected to the inner top surface of the second mounting frame. The second mounting frame is fixedly mounted on the side wall of the mounting base.

[0016] Through the above technical solution, the spring drives the connecting frame, the tensioning component drives the follower roller to smooth and tighten the composite packaging bag, and the first slide rod slides on the second mounting frame to guide the connecting frame.

[0017] Furthermore, the auxiliary roller is arranged in two sets of mounting ears located at the front and rear ends of the first mounting frame on the mounting base.

[0018] Through the above technical solution, the two sets of auxiliary rollers work together to support the packaging bag, making it less likely to be damaged by the adjustable folding component.

[0019] Furthermore, the drive assembly includes a drive cylinder, a second slide rod, and a third mounting bracket. The drive cylinder is fixedly mounted on the upper surface of the first mounting bracket, and the output end of the drive cylinder is fixedly connected to the upper surface of the third mounting bracket. The second slide rod is arranged in a rectangular four-point distribution and has four sets, all of which are fixedly mounted on the upper surface of the third mounting bracket. The second slide rod is slidably connected to the first mounting bracket, and the third mounting bracket is connected to the adjustment assembly.

[0020] Furthermore, the adjustment assembly includes a servo motor, a bidirectional threaded rod, a third slide rod, a mounting block, a slide rail, a slider, a mounting plate, and a fourth slide rod. The servo motor is fixedly mounted on the rear side wall of the third mounting frame. The bidirectional threaded rod is rotatably mounted on the inner end of the third mounting frame. The output end of the servo motor is fixedly connected to the rear end of the bidirectional threaded rod. Two sets of the third slide rod are arranged left and right, both fixedly mounted on the inner end of the third mounting frame. Two sets of mounting blocks are arranged front and back, and the two sets of mounting blocks are threadedly connected to both ends of the bidirectional threaded rod. The mounting blocks are slidably connected to the third slide rod. Two sets of slide rails are arranged left and right, respectively fixedly mounted on the upper surface of the mounting base. Two sets of sliders are arranged front and back on one set of slide rails, and the sliders are slidably connected to the slide rail. A mounting plate is fixedly mounted on the outer surface of the slider. Four sets of fourth slide rods are provided. One set of fourth slide rods is fixedly mounted on the upper surface of each of the four sets of mounting plates. The fourth slide rods are slidably connected to the mounting blocks. The mounting blocks and sliders are connected to the pressing and bending assembly.

[0021] Furthermore, the pressing and folding assembly includes a pressing and folding plate and a folding base plate. The pressing and folding plate has two sets that are detachably installed on the lower end surfaces of the two sets of mounting blocks. The folding base plate has two sets that are arranged front and rear and fixedly installed on the upper end surfaces of the two sets of front sliders and the two sets of rear sliders.

[0022] Through the above technical solution, a servo motor drives a bidirectional threaded rod to rotate on the third mounting bracket. The bidirectional threaded rod drives two sets of mounting blocks, which slide on the third slide bar. The mounting blocks drive the adjustment of the pressure plate, and simultaneously, the mounting blocks drive the fourth slide bar, which drives the mounting plate. The mounting plate drives the slider, which in turn drives the folding base plate for synchronous adjustment. After adjustment to the required size, the drive cylinder drives the third mounting bracket to descend. The second slide bar slides on the first mounting bracket for guidance. The third mounting bracket drives the bidirectional threaded rod and the third slide bar to drive the mounting blocks, and the mounting blocks drive the pressure plate to descend and fold. The crease plate works together to fold the composite packaging bag. If the two sets of mounting blocks are adjusted to the size of the composite packaging bag, they can be folded and formed in one go, improving production efficiency. In addition, for some difficult-to-plasticize materials, the frequency of the servo motor can be adjusted, and then the position of the folding plate can be adjusted by adjusting the component, so that the front folding plate performs the initial folding and the rear folding plate performs the secondary folding to improve the forming effect. During the descent of the mounting block, the fourth slide rod is connected to the mounting block for limiting sliding. The fourth slide rod can not only make the crease plate adjust synchronously with the folding plate, but also not affect the normal folding.

[0023] The beneficial effects of this utility model are as follows: (1) By tightening the composite packaging bag with the tensioning component, the creases will not slip during transportation and will be more accurate. At the same time, by straightening and smoothing the composite packaging bag, no extra wrinkles will be generated when the packaging bag is folded. (2) By adjusting the size of the packaging bag with the adjustable folding component, the creases at both ends of the composite packaging bag can be pressed into place at one time. At the same time, for some composite packaging bags that are not easy to fold, the two sets of folding plates at the inner end can be adjusted by the adjustable folding component to fold them twice, thereby improving the folding effect. Attached Figure Description

[0024] Figure 1 This utility model provides a three-dimensional folding mechanism for processing composite packaging bags. Figure 1 ;

[0025] Figure 2 This is a front view of a composite packaging bag crease processing mechanism according to the present invention;

[0026] Figure 3 This utility model provides a three-dimensional folding mechanism for processing composite packaging bags. Figure 2 ;

[0027] Figure 4 For along Figure 2 AA direction section Figure 1 ;

[0028] Figure 5 For along Figure 2 AA direction section Figure 2 .

[0029] Figure label:

[0030] 1. Mounting assembly; 11. Mounting base; 12. First mounting frame; 2. Conveyor roller; 3. Tensioning assembly; 31. Connecting frame; 32. Follower roller; 33. First slide bar; 34. Spring; 35. Second mounting frame; 4. Auxiliary roller; 5. Adjustable pressing and folding assembly; 51. Drive assembly; 511. Drive cylinder; 512. Second slide bar; 513. Third mounting frame; 52. Adjusting assembly; 521. Servo motor; 522. Bidirectional threaded rod; 523. Third slide bar; 524. Mounting block; 525. Slide rail; 526. Slider; 527. Mounting plate; 528. Fourth slide bar; 53. Pressing and folding assembly; 531. Pressing and folding plate; 532. Folding base plate. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0032] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0033] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-5 A folding mechanism for processing composite packaging bags includes a mounting assembly 1, a conveying electric roller 2 for driving the composite packaging bag mounted on the mounting assembly 1, a tensioning assembly 3 for tensioning the composite packaging bag mounted on the mounting assembly 1, an auxiliary roller 4 mounted on the mounting assembly 1, and an adjustable folding assembly 5 for adjusting the folding size mounted on the mounting assembly 1.

[0034] The adjustable folding assembly 5 includes a drive assembly 51, an adjustment assembly 52, and a folding assembly 53. The drive assembly 51 is connected to the mounting assembly 1, the adjustment assembly 52 is connected to both the mounting assembly 1 and the drive assembly 51, and the folding assembly 53 is connected to the adjustment assembly 52.

[0035] Mounting assembly 1 includes mounting base 11 and first mounting bracket 12. The first mounting bracket 12 is fixedly mounted on the side wall of mounting base 11. Mounting base 11 is connected to adjustment assembly 52. ​​First mounting bracket 12 is connected to drive assembly 51.

[0036] Two sets of conveyor rollers 2 are arranged in a front-to-back arrangement and are rotatably mounted on the mounting ears at the front and rear ends of the mounting base 11.

[0037] Two sets of tensioning components 3 are arranged in a front-to-back arrangement. The tensioning components 3 include a connecting frame 31, a follower roller 32, a first slide rod 33, a spring 34, and a second mounting frame 35. The follower roller 32 is rotatably mounted on the inner end of the connecting frame 31. Two sets of the first slide rod 33 are arranged left and right and fixedly mounted on the upper end surface of the connecting frame 31. The first slide rod 33 is slidably connected to the second mounting frame 35. Two sets of springs 34 are arranged left and right and respectively sleeved on the first slide rod 33. The lower end of the spring 34 is fixedly connected to the upper end surface of the connecting frame 31, and the upper end of the spring 34 is fixedly connected to the inner top surface of the second mounting frame 35. The second mounting frame 35 is fixedly mounted on the side wall of the mounting base 11.

[0038] The auxiliary roller 4 is arranged in two sets, which are rotatably mounted on the mounting base 11 at the front and rear ends of the first mounting frame 12.

[0039] The drive assembly 51 includes a drive cylinder 511, a second slide rod 512, and a third mounting bracket 513. The drive cylinder 511 is fixedly mounted on the upper end face of the first mounting bracket 12, and the output end of the drive cylinder 511 is fixedly connected to the upper end face of the third mounting bracket 513. The second slide rod 512 is arranged in a rectangular four-point distribution and has four sets, all of which are fixedly mounted on the upper end face of the third mounting bracket 513. The second slide rod 512 is slidably connected to the first mounting bracket 12. The third mounting bracket 513 is connected to the adjustment assembly 52.

[0040] The adjustment assembly 52 includes a servo motor 521, a bidirectional threaded rod 522, a third slide rod 523, a mounting block 524, a slide rail 525, a slider 526, a mounting plate 527, and a fourth slide rod 528. The servo motor 521 is fixedly mounted on the rear side wall of the third mounting bracket 513. The bidirectional threaded rod 522 is rotatably mounted on the inner end of the third mounting bracket 513. The output end of the servo motor 521 is fixedly connected to the rear end of the bidirectional threaded rod 522. Two sets of the third slide rod 523 are arranged left and right and fixedly mounted on the inner end of the third mounting bracket 513. Two sets of mounting blocks 524 are arranged front and rear. The two sets of mounting blocks 524 are respectively connected to the bidirectional threaded rod 524. The two ends of 22 are threaded together. The mounting block 524 is slidably connected to the third slide rod 523. Two sets of slide rails 525 are arranged left and right and are fixedly installed on the upper surface of the mounting base 11. Two sets of sliders 526 are arranged front and back on one set of slide rails 525. The sliders 526 are slidably connected to the slide rails 525. The outer surface of the sliders 526 is fixedly installed with mounting plates 527. Four sets of fourth slide rods 528 are arranged. A set of fourth slide rods 528 is fixedly installed on the upper surface of each of the four sets of mounting plates 527. The fourth slide rods 528 are slidably connected to the mounting block 524. The mounting block 524, sliders 526 and pressing and bending components 53 are connected.

[0041] The folding assembly 53 includes a folding plate 531 and a crease base plate 532. The folding plate 531 has two sets that are detachably mounted on the lower end surfaces of the two sets of mounting blocks 524. The crease base plate 532 has two sets that are arranged in a front-to-back manner and are fixedly mounted on the upper end surfaces of the two sets of sliders 526 on the front side and the two sets of sliders 526 on the rear side.

[0042] In use, the servo motor 521 drives the bidirectional threaded rod 522 to rotate on the third mounting frame 513. The bidirectional threaded rod 522 drives two sets of mounting blocks 524, which slide on the third slide rod 523. The mounting blocks 524 drive the pressure plate 531 to adjust. At the same time, the mounting blocks 524 drive the fourth slide rod 528, which drives the mounting plate 527. The mounting plate 527 drives the slider 526, which drives the crease base plate 532 to adjust synchronously. After adjusting to the required size, the composite packaging bag is conveyed by the conveying roller 2. Then, the spring 34 drives the connecting frame 31, and the tensioning component 3 drives the follower roller 32 to smooth and tighten the composite packaging bag. The first slide rod 33 slides on the second mounting frame 35 to guide the connecting frame 31. The two sets of auxiliary rollers 4 cooperate to support the packaging bag so that it is not easily damaged by the adjustable pressure component 5.

[0043] Then, the drive cylinder 511 drives the third mounting bracket 513 to descend, and the second slide rod 512 slides on the first mounting bracket 12 for guidance. The third mounting bracket 513 drives the bidirectional threaded rod 522 and the third slide rod 523 to drive the mounting block 524. The mounting block 524 drives the folding plate 531 to descend and cooperate with the crease base plate 532 to fold the composite packaging bag. At this time, if the two sets of mounting blocks 524 are adjusted to the size of the composite packaging bag, they can be folded and formed in one go, improving production efficiency. In addition, for some difficult-to-plasticize materials, the frequency of the servo motor 521 can be adjusted, and then the position of the folding plate 531 can be adjusted by adjusting the component 52, so that the front folding plate 531 performs initial pressure and the rear folding plate 531 performs secondary pressure to improve the forming effect. During the descent of the mounting block 524, the fourth slide rod 528 is limited and slidably connected to the mounting block 524. The fourth slide rod 528 can not only make the crease base plate 532 adjust synchronously with the folding plate 531, but also does not affect the normal folding.

[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model. The above description is merely an embodiment of the present utility model and is not intended to limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A crease-forming mechanism for composite packaging bags, comprising an mounting assembly (1), characterized in that: The mounting assembly (1) is equipped with a conveying electric roller (2) for driving the composite packaging bag, a tensioning assembly (3) for tensioning the composite packaging bag, an auxiliary roller (4) for mounting the mounting assembly (1), and an adjustable folding assembly (5) for adjusting the folding size. The adjustable folding assembly (5) includes a drive assembly (51), an adjustment assembly (52) and a folding assembly (53). The drive assembly (51) is connected to the mounting assembly (1), the adjustment assembly (52) is connected to the mounting assembly (1) and the drive assembly (51), and the folding assembly (53) is connected to the adjustment assembly (52).

2. The crease-forming mechanism for composite packaging bags according to claim 1, characterized in that, The mounting assembly (1) includes a mounting base (11) and a first mounting bracket (12). The first mounting bracket (12) is fixedly mounted on the side wall of the mounting base (11). The mounting base (11) is connected to the adjustment assembly (52). The first mounting bracket (12) is connected to the drive assembly (51).

3. The crease-forming mechanism for composite packaging bags according to claim 2, characterized in that, The conveying rollers (2) are arranged in two sets, which are rotatably mounted on the mounting ears at the front and rear ends of the mounting base (11).

4. The crease-forming mechanism for composite packaging bags according to claim 3, characterized in that, The tensioning assembly (3) is arranged in two sets, one in front and one behind. The tensioning assembly (3) includes a connecting frame (31), a follower roller (32), a first slide rod (33), a spring (34), and a second mounting frame (35). The follower roller (32) is rotatably mounted on the inner end of the connecting frame (31). The first slide rod (33) is arranged in two sets and fixedly mounted on the upper end surface of the connecting frame (31). The first slide rod (33) is slidably connected to the second mounting frame (35). The spring (34) is arranged in two sets and respectively sleeved on the first slide rod (33). The lower end of the spring (34) is fixedly connected to the upper end surface of the connecting frame (31), and the upper end of the spring (34) is fixedly connected to the inner top surface of the second mounting frame (35). The second mounting frame (35) is fixedly mounted on the side wall of the mounting base (11).

5. The crease-forming mechanism for composite packaging bags according to claim 4, characterized in that, The auxiliary roller (4) is arranged in two sets of mounting ears on the mounting base (11) located at the front and rear ends of the first mounting frame (12).

6. The crease-forming mechanism for composite packaging bags according to claim 5, characterized in that, The drive assembly (51) includes a drive cylinder (511), a second slide rod (512), and a third mounting bracket (513). The drive cylinder (511) is fixedly mounted on the upper surface of the first mounting bracket (12). The output end of the drive cylinder (511) is fixedly connected to the upper surface of the third mounting bracket (513). The second slide rod (512) is arranged in a rectangular four-point distribution with four groups, all of which are fixedly mounted on the upper surface of the third mounting bracket (513). The second slide rod (512) is slidably connected to the first mounting bracket (12). The third mounting bracket (513) is connected to the adjustment assembly (52).

7. The crease-forming mechanism for composite packaging bags according to claim 2, characterized in that, The adjustment assembly (52) includes a servo motor (521), a bidirectional threaded rod (522), a third slide rod (523), a mounting block (524), a slide rail (525), a slider (526), ​​a mounting plate (527), and a fourth slide rod (528). The servo motor (521) is fixedly mounted on the rear side wall of the third mounting bracket (513). The bidirectional threaded rod (522) is rotatably mounted on the inner end of the third mounting bracket (513). The output end of the servo motor (521) is fixedly connected to the rear end of the bidirectional threaded rod (522). Two sets of the third slide rod (523) are arranged left and right, both fixedly mounted on the inner end of the third mounting bracket (513). Two sets of the mounting blocks (524) are arranged front and back, and the two sets of mounting blocks (524) are respectively connected to the bidirectional threaded rod (525). 22) is threaded at both ends. The mounting block (524) is slidably connected to the third slide rod (523). The slide rail (525) is arranged in two sets and fixedly installed on the upper surface of the mounting base (11). Two sets of sliders (526) are arranged in front and behind on one set of the slide rail (525). The sliders (526) are slidably connected to the slide rail (525). The mounting plate (527) is fixedly installed on the outer surface of the slider (526). The fourth slide rod (528) is arranged in four sets. The fourth slide rod (528) is fixedly installed on the upper surface of the four sets of mounting plates (527). The fourth slide rod (528) is slidably connected to the mounting block (524). The mounting block (524), the slider (526) and the pressing and bending assembly (53) are connected.

8. The crease-forming mechanism for composite packaging bags according to claim 7, characterized in that, The folding assembly (53) includes a folding plate (531) and a crease base plate (532). The folding plate (531) has two sets that are detachably mounted on the lower end surfaces of two sets of mounting blocks (524). The crease base plate (532) has two sets that are arranged front and rear and fixedly mounted on the upper end surfaces of the two sets of sliders (526) on the front side and the two sets of sliders (526) on the rear side.

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