Limiting assembly used in production process of cardboard packaging bag

Abstract

The utility model discloses a limiting assembly used in the production process of a cardboard packaging bag, and belongs to the technical field of packaging bag processing and production. A cantilever supporting rod is arranged on one side of a rack; one end of the cantilever supporting rod extends to the position close to the connection position of the second pressing strip and the inner top strip from the position above the transmission belt; an outer top strip is arranged on the cantilever supporting rod; the outer top strip is of an inclined bent plate structure; the head part of the outer top strip is close to the tail end of the third pressing strip, is gradually lifted from the middle part to the tail part and tends to approach the inner top strip; the paper packaging bag deformation device effectively solves the problems that when a flattened paper packaging bag is deformed through conventional machining equipment at present, stability is poor, and products are prone to being damaged.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag processing and production technology, specifically to a limiting component used in the production process of paper packaging bags. Background Technology

[0002] In the production of high-end liquor's portable cardboard packaging, the folded, glued, and flattened cardboard boxes need to be unfolded into... Figure 1 The three-dimensional structure shown will then proceed to the next process; and the currently used automated processing equipment can be referenced. Figure 2 and Figure 3 The structure and working principle are as follows: On the left side of the machine frame are rollers and paddles used to flatten the folded cardboard and provide friction to move the cardboard to the right. On the right side is a drive belt. Above the rollers, along the length of the frame, are three pressure strips that run through the middle of the folded cardboard. One pressure strip stops at the end of the roller assembly, while the other two extend to the end of the drive belt. After the cardboard enters the drive belt, it is clamped between the pressure strips and the drive belt and is moved forward by the drive belt. Subsequently, top strips corresponding to the two pressure strips above the drive belt push open the four edges of the cardboard to form... Figure 1 The three-dimensional structure in the paper; however, the staff found that although creases were left on the paper, it was still difficult to ensure the stability of its deformation after the paper left the roller and entered the transmission belt, and it was easy to be damaged. This is the main problem that this application aims to solve. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a limiting component for the production process of paper packaging bags, so as to solve the problem that the stability of the flattened paper packaging bags is poor and the product is easily damaged when deformed using conventional processing equipment.

[0004] To solve the above problems, this utility model provides the following technical solution:

[0005] A limiting component for use in the production process of paper packaging bags includes a frame; several rotatable rollers are arranged on the left side of the frame; a first pressure strip, a second pressure strip, and a third pressure strip are arranged sequentially above the rollers; a drive belt is arranged on the right side of the frame; the first and second pressure strips extend to the tail of the drive belt, and a gap is left between one end of the third pressure strip and the feed end of the drive belt; several pads are also installed on the first and second pressure strips located above the drive belt; a pair of inner top strips are installed on the upper part of the pads; the head ends of the two inner top strips are respectively connected to the first and second pressure strips near the feed end of the drive belt; a cantilever support is arranged on one side of the frame; one end of the cantilever support extends from above the drive belt to a position near the junction of the second pressure strip and the inner top strip; an outer top strip is arranged on the cantilever support; the outer top strip is an inclined curved plate structure; the head of the outer top strip is near the tail end of the third pressure strip, the middle part gradually rises towards the tail end, and tends to move towards the inner top strip.

[0006] Preferably, the cantilever support is a combined rod structure with adjustable cantilever height and extension length; a reinforcing rod is also provided between the cantilever support and the outer top bar.

[0007] Preferably, the head of the outer top strip is inserted downwards between the two rollers located at the tail of the third pressure strip.

[0008] Preferably, the height of the outer top strip's tail is greater than the height of the inner top strip.

[0009] Preferably, it also includes a hanger spanning both ends of the frame; a number of rotatable rollers are provided at the lower part of the hanger; a cantilever support is provided on the hanger; the extended end of the cantilever support is supported on the lower side of the head of the outer top bar.

[0010] Furthermore, the cantilever support rod is an L-shaped structure, with one end inclinedly connected to the hanger and the other end resting on the underside of the outer top strip.

[0011] The beneficial effects of this utility model are reflected in the following aspects:

[0012] 1. Significantly improves the stability of paperboard deformation: This utility model adds an outer top strip to the original production equipment. The outer top strip applies support force to the paperboard from the outside. It works in conjunction with the inner top strip to stabilize the stability of the paperboard during the deformation process and ensure that the paperboard can unfold into a three-dimensional structure according to the predetermined requirements.

[0013] 2. Reduce product damage rate: The limiting component reduces the shaking and displacement of the cardboard during processing through the coordinated limiting effect of the inner and outer top strips, avoiding damage caused by collision and friction between the cardboard and equipment parts, significantly reducing the defect rate of products, improving the production quality and yield of cardboard packaging bags, and saving production costs for enterprises.

[0014] 3. Enhanced equipment applicability and flexibility: The cantilever support adopts a combination rod structure with adjustable cantilever height and extension length, which allows the position of the outer top bar to be flexibly adjusted according to different specifications and sizes of cardboard packaging bags. This enhances the equipment's adaptability to processing diverse products and improves its versatility. Enterprises can meet different production needs without frequently changing equipment.

[0015] 4. Improved production efficiency: The stable limiting structure ensures that the cardboard packaging bags can complete the deformation process smoothly and efficiently, reducing downtime and adjustment time caused by unstable cardboard deformation, improving production efficiency, and helping enterprises increase production capacity to meet market demand. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure that needs to be unfolded and formed in this embodiment;

[0017] Figure 2 This is a schematic diagram of the structure of currently used automated processing equipment;

[0018] Figure 3 yes Figure 2 Sectional view along line AA;

[0019] Figure 4 This is a schematic diagram of the structure of the utility model device in this embodiment;

[0020] Figure 5 yes Figure 4 Sectional view along the BB direction;

[0021] Explanation of reference numerals in the attached drawings: 1. Frame, 2. Roller, 3. First pressure bar, 4. Second pressure bar, 5. Third pressure bar, 6. Drive belt, 7. Pad, 8. Inner top bar, 9. Cantilever support rod, 10. Outer top bar, 11. Reinforcing rod, 12. Hanger, 13. Cantilever support rod. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: Example

[0023] Reference Figure 1This embodiment provides a limiting component for use in the production process of paper packaging bags; it includes a frame 1; several rotatable rollers 2 are arranged on the left side of the frame 1; a first pressure strip 3, a second pressure strip 4, and a third pressure strip 5 are arranged sequentially above the rollers 2; a transmission belt 6 is arranged on the right side of the frame 2; the first pressure strip 3 and the second pressure strip 4 extend to the tail of the transmission belt 6, and a gap is left between one end of the third pressure strip 6 and the feed end of the transmission belt 6; several pads 7 are also installed on the first pressure strip 3 and the second pressure strip 4 located above the transmission belt 6; A pair of inner top bars 8 are installed on the upper part of block 7; the head ends of the two inner top bars 8 are respectively connected to the first pressure bar 3 and the second pressure bar 4 near the feed end of the transmission belt 6; a cantilever support rod 9 is provided on one side of the frame 1; one end of the cantilever support rod 9 extends from above the transmission belt 6 to the position near the second pressure bar 4 and the inner top bar 8; an outer top bar 10 is provided on the cantilever support rod 9; the outer top bar 10 is an inclined curved plate structure; the head of the outer top bar 10 is close to the tail end of the third pressure bar 5, the middle part gradually rises towards the tail end, and shows a tendency to move closer to the inner top bar 8.

[0024] The cantilever support 9 is a combined rod structure with adjustable cantilever height and extension length; a reinforcing rod 11 is also provided between the cantilever support 9 and the outer top bar 10.

[0025] The head of the outer top bar 10 is inserted downwards between the two rollers located at the tail of the third pressure bar 5.

[0026] The height of the tail of the outer top strip 10 is greater than the height of the inner top strip 8. In this embodiment, a protective layer is also provided on the end face of the outer top strip 10 that is in contact with the cardboard to prevent damage to the outer surface of the cardboard.

[0027] It also includes a hanger 12 spanning both ends of the frame 1; several rotatable rollers are provided at the lower part of the hanger 12; a cantilever support rod 13 is provided on the hanger 12; the extended end of the cantilever support rod 13 is supported on the lower side of the head of the outer top bar 10.

[0028] The cantilever support rod 13 is an L-shaped structure, with one end inclinedly connected to the hanger 12 and the other end resting on the underside of the outer top strip 10. A [missing information - likely a design feature] is provided at the tail end of the cantilever support rod 13.

[0029] When the cardboard is flattened and conveyed to the area of ​​the transmission belt 6 by the roller 2, the gap between the end of the third pressure bar 5 and the transmission belt 6 causes one side of the cardboard to lose its restraint. When it moves to the outer top bar 10 in the roller gap, the outer top bar 10 will use its inclined curved surface to apply a progressive outward pushing force towards the second pressure bar to the side of the cardboard, forcing the cardboard to gradually unfold outward along the preset crease. When it further enters the position of the inner top bar 8, the inner top bar will guide and position the unfolded edge from inside the cardboard. The arc-shaped curved surface of the outer top bar and the inner top bar 8 form a channel that allows the side of the cardboard to stand up, ensuring that the cardboard unfolds evenly. The tail of the outer top bar 10, which is raised compared to the inner top bar, allows the cardboard to quickly separate from the outer top bar after unfolding.

Claims

1. A limiting assembly for paper shell packaging bag production process, comprising a frame (1); a plurality of rotatable rollers (2) are arranged on the left side of the frame (1); a first pressing strip (3), a second pressing strip (4) and a third pressing strip (5) are arranged in sequence above the rollers (2); a transmission belt (6) is arranged on the right side of the frame (1); the first pressing strip (3) and the second pressing strip (4) extend to the tail of the transmission belt (6), and a gap is left between one end of the third pressing strip (5) and the feeding end of the transmission belt (6); a plurality of pads (7) are further installed on the first pressing strip (3) and the second pressing strip (4) above the transmission belt (6); a pair of inner top strips (8) are installed on the upper part of the pads (7); the head ends of the two inner top strips (8) are connected to the first pressing strip (3) and the second pressing strip (4) near the feeding end of the transmission belt (6); characterized in that: A cantilever support rod (9) is arranged on one side of the frame (1); one end of the cantilever support rod (9) extends from above the transmission belt (6) to a position close to the joint of the second pressing strip (4) and the inner top strip (8); an outer top strip (10) is arranged on the cantilever support rod (9); the outer top strip (10) is an inclined curved plate structure; the head of the outer top strip (10) is close to the tail end of the third pressing strip (5), the middle part is gradually raised towards the tail end, and the tail end is close to the inner top strip (8).

2. The limiting assembly for paper shell packaging bag production process according to claim 1, characterized in that: The cantilever support rod (9) is a combined rod structure with adjustable cantilever height and extension length; a reinforcing rod (11) is further arranged between the cantilever support rod (9) and the outer top strip (10).

3. The limiting assembly for paper shell packaging bag production process according to claim 1, characterized in that: The head of the outer top strip (10) is inserted between the two rollers at the tail end of the third pressing strip (5).

4. The limiting assembly for paper shell packaging bag production process according to claim 1, characterized in that: The height of the tail end of the outer top strip (10) is greater than the height of the inner top strip (8).

5. The limiting assembly for paper shell packaging bag production process according to claim 1, characterized in that: A hanging bracket (12) is further arranged across both ends of the frame (1); a plurality of rotatable rollers are arranged on the lower part of the hanging bracket (12); a cantilever support rod (13) is arranged on the hanging bracket (12); the extension end of the cantilever support rod (13) is supported on the lower side of the head of the outer top strip (10).

6. The limiting assembly for paper shell packaging bag production process according to claim 5, characterized in that: The cantilever support rod (13) is an L-shaped rod structure, one end of which is obliquely connected to the hanging bracket (12), and the other end is supported on the lower side of the outer top strip (10).

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