Multi-layer composite type packaging paper bag sizing and edge cutting device

By designing a multi-layer composite packaging paper bag fixed-length cutting device, a fixed-length cutting is achieved by using a sliding plate and a motor-driven cutting blade. This solves the problem of low efficiency in manual stacking in existing technologies and realizes efficient and labor-saving cutting and automatic waste collection.

CN224130621UActive Publication Date: 2026-04-17HERUN (TIANJIN) NEW MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HERUN (TIANJIN) NEW MATERIAL CO LTD
Filing Date
2025-03-31
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The current process of trimming multi-layer composite packaging paper bags is cumbersome, requiring manual stacking of each bag, resulting in low cutting efficiency, high labor intensity, and a large demand for manpower.

Method used

Design a multi-layer composite packaging paper bag fixed-length cutting device, including a worktable, a sliding plate, a drive screw, a motor and a cutting blade. Fixed-length cutting is achieved by the sliding plate and the motor driving the cutting blade, and a blower mechanism is equipped to collect waste.

Benefits of technology

It enables efficient and labor-saving cutting of packaging paper bags, improves cutting efficiency, reduces manual intervention, automatically collects waste, and does not affect production continuity.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224130621U_ABST
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Abstract

The utility model belongs to the technical field of packaging bag processing devices, and relates to a multi-layer composite type packaging paper bag sizing and edge cutting device which is characterized in that an installation bottom plate is installed on a workbench, rails are symmetrically arranged at the two ends of the installation bottom plate, connecting plates are installed on the rails through sliding blocks, a sliding vertical plate is of a T-shaped structure, and the sliding vertical plate is connected with the installation bottom plate in a sliding mode. The two ends of the horizontal part of the T-shaped structure are fixedly connected with the connecting plate, a threaded hole is formed in one end of the sliding vertical plate, a driving screw is installed in the threaded hole in a threaded mode, the two ends of the driving screw are rotationally installed on bearing seats, and the bearing seats are installed on the inner side and the outer side of the sliding vertical plate on the installation bottom plate. A driving mechanism is installed at the end of the driving screw on the outer side of the sliding vertical plate, a cutting knife is installed on the inner side of the sliding vertical plate, and a motor for driving the cutting knife to rotate is installed on the outer side of the sliding vertical plate. The cutting device is scientific and reasonable in design, and has the advantages of being high in cutting efficiency, labor-saving and easy to implement.
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Description

Technical Field

[0001] This utility model belongs to the technical field of packaging paper bag processing equipment, and relates to an edge trimming device, specifically a multi-layer composite packaging paper bag fixed-length edge trimming device. Background Technology

[0002] Multi-layer composite packaging paper bags are generally made of multiple layers of kraft paper. Each layer of kraft paper is bonded together by strip or spot bonding. They are used for packaging chemical raw materials that require high airtightness.

[0003] After the multi-layer composite packaging paper bag has completed its initial composite molding and bottom bonding, due to the molding of multiple layers of packaging paper, a stepped staggered structure will be formed at the bottom of the packaging paper bag. In order to facilitate the subsequent bottom folding work, this staggered structure needs to be trimmed.

[0004] The existing trimming process is quite cumbersome, requiring manual stacking of each pre-formed paper bag before uniform cutting at the cutting blade. This process is extremely inefficient, labor-intensive, and consumes a large amount of manpower, which is not conducive to the processing of multi-layer composite paper bags. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a multi-layer composite packaging paper bag fixed-length edge cutting device that is efficient, labor-saving, and easy to implement.

[0006] The technical problem solved by this utility model is achieved through the following technical solution:

[0007] A multi-layer composite packaging paper bag length-cutting device is characterized by comprising a workbench, a mounting base plate, a sliding upright plate, rails, sliding blocks, a drive screw, a motor, and a cutting blade. The mounting base plate is mounted on the workbench, and rails are symmetrically arranged at both ends of the mounting base plate. Connecting plates are mounted on each rail via sliders. The sliding upright plate has a T-shaped structure, with both ends of the horizontal portion of the T-shape fixedly connected to the connecting plates. A threaded hole is provided at one end of the sliding upright plate, and a drive screw is threaded into the threaded hole. Both ends of the drive screw are rotatably mounted on bearing seats, which are mounted on the inner and outer sides of the sliding upright plate on the mounting base plate. A drive mechanism is mounted at the end of the drive screw on the outer side of the sliding upright plate. A cutting blade is mounted on the inner side of the sliding upright plate, and a motor driving the cutting blade is mounted on the outer side of the sliding upright plate.

[0008] Moreover, the driving mechanism is a stepper motor.

[0009] Furthermore, the driving mechanism is a driving handle installed at the end of the driving screw.

[0010] Furthermore, it also includes a limiting block, which is provided on the outer side of the sliding upright plate on the mounting base plate.

[0011] Furthermore, it also includes a protective cover, on which a mounting bracket is installed, and the protective cover is mounted on the mounting bracket and positioned above the cutting blade.

[0012] Furthermore, it also includes an air blowing mechanism, which includes a blower, an air blowing pipe, and a support frame. The blower is installed inside the workbench, and an air blowing pipe is connected to the blower's air outlet. The air blowing pipe is led out from the workbench surface and supported on the support frame. The front end of the air blowing pipe forms an air blowing nozzle, which is positioned opposite to the edge of the mounting base plate.

[0013] Furthermore, the support frame includes a base, an adjusting screw, an internally threaded tube, a universal ball joint, and a support claw. The base is installed on the workbench, the adjusting screw is installed on the base, the internally threaded tube is threaded onto the adjusting screw, and the support claw is installed on the top of the internally threaded tube via the universal ball joint. The air blowing pipe is supported on the support claw.

[0014] Furthermore, it also includes a guide plate, which is a horizontally arranged L-shaped structure. One side of the L-shaped structure is placed inside the mounting base plate, and the other side of the L-shaped structure is placed at the side end of the mounting base plate.

[0015] Furthermore, it also includes a waste collection basket, which is installed on the ground opposite the air nozzle.

[0016] The advantages and positive effects of this utility model are:

[0017] 1. This multi-layer composite packaging paper bag length-cutting device is installed on the packaging paper bag conveyor table. During operation, the packaging paper bags are sent to this device one by one for cutting. This device can achieve length-cutting of the packaging paper bags by adjusting the position of the cutting blade, meeting the cutting requirements of different paper bags. It solves the problem of low efficiency and high labor cost caused by the existing operation that requires manual stacking and then manual cutting by operating the cutting blade.

[0018] 2. This multi-layer composite packaging paper bag length-cutting device, through the design of the air blowing mechanism, can collect the cut scraps, avoiding their accumulation on the workbench and affecting the conveying and cutting of the packaging paper bags.

[0019] 3. This utility model has a scientific and reasonable design, with the advantages of high cutting efficiency, saving manpower and effort, and easy implementation. It is a highly innovative multi-layer composite packaging paper bag fixed-length edge cutting device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a rear view of the present invention (the air blowing mechanism is omitted).

[0022] Explanation of reference numerals in the attached figures

[0023] 1-Workbench, 2-Mounting base plate, 3-Railway, 4-Connecting plate, 5-Limit block, 6-Protective cover, 7-Motor, 8-Drive handle, 9-Sliding upright plate, 10-Guide plate, 11-Air blowing pipe, 12-Support claw, 13-Internal threaded pipe, 14-Adjusting screw, 15-Waste collection basket, 16-Fan, 17-Drive screw, 18-Cutter, 19-Mounting bracket. Detailed Implementation

[0024] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0025] An innovative multi-layer composite packaging paper bag trimming device includes a workbench 1, a mounting base plate 2, a sliding upright plate 9, a track 3, a sliding block, a drive screw 17, a motor 7, and a cutting blade 18. The mounting base plate is mounted on the workbench, with tracks symmetrically arranged at both ends. Connecting plates 4 are mounted on each track via sliders. The sliding upright plate has a T-shaped structure, with the horizontal ends of the T-shape welded and fixed to the upper surface of the connecting plates. A threaded hole is provided at one end of the sliding upright plate, and a drive screw is threaded into the hole. Both ends of the drive screw are rotatably mounted on bearing seats, which are installed on the inner and outer sides of the sliding upright plate on the mounting base plate. A drive mechanism is installed at the end of the drive screw on the outer side of the sliding upright plate. A cutting blade is installed on the inner side of the sliding upright plate, and a motor driving the cutting blade is installed on the outer side of the sliding upright plate.

[0026] There are two types of driving methods for the sliding plate: one is to drive the drive screw through a stepper motor, which in turn drives the sliding plate to move back and forth; the other is to drive the drive screw by manually turning the drive handle 8, which in turn drives the sliding plate to move back and forth.

[0027] By adjusting the front and rear positions of the sliding upright, the front and rear positions of the cutting blade can be adjusted, thereby allowing for the cutting of excess staggered structures according to production needs and achieving the function of trimming the edges of packaging paper bags.

[0028] To prevent the sliding upright from moving excessively outward, this utility model also includes a limiting block 5, which is provided on the outer side of the sliding upright on the mounting base plate.

[0029] To ensure the safety of the cutting blade during operation, this utility model also features an arc-shaped protective cover 6. An mounting bracket 19 is installed on the sliding upright plate. In this embodiment, the mounting bracket is made of angle steel, and the protective cover is mounted on the mounting bracket above the cutting blade.

[0030] To facilitate the collection of cutting waste, this utility model designs an air blowing mechanism, which includes a blower 16, an air blowing pipe 11, and a support frame. The blower is installed inside the workbench, and an air blowing pipe is connected to the blower's air outlet. The air blowing pipe is led out from the workbench surface and supported on the support frame. The front end of the air blowing pipe forms an air blowing nozzle, which is positioned opposite to the edge of the mounting base plate.

[0031] The support frame includes a base, an adjusting screw 14, an internally threaded tube 13, a universal ball joint, and an upward-opening arc-shaped support claw 12. The base is installed on the workbench, the adjusting screw is installed on the base, the internally threaded tube is threaded onto the adjusting screw, and the support claw is installed on the top of the internally threaded tube through the universal ball joint. The air blowing pipe is supported on the support claw.

[0032] To prevent waste material from being blown onto the mounting base plate during air blowing and affecting the cutting process, this invention incorporates a guide plate 10. The guide plate is a horizontally arranged L-shaped structure, with one side of the L-shape positioned inside the mounting base plate and the other side positioned at the side end of the mounting base plate. The upper end of the guide plate has an inwardly bent upper eave structure, which prevents waste material from being blown in.

[0033] It also includes a waste collection basket 15, which is set on the ground at a position opposite to the air nozzle.

[0034] During operation, the position of the cutting blade is adjusted according to the width of the staggered structure to be cut. The air nozzle is then aligned with the bend of the guide plate before starting work. The packaging paper bag is conveyed to the cutting position on the worktable. The waste material is cut by the cooperation of the cutting blade and the cutting hole directly below the cutting blade (the cutting hole is set on the worktable). During cutting, one end of the waste material will protrude from the end of the guide plate. Under the action of the air nozzle, the waste material is blown down from the worktable along the guide plate and falls into the collection basket for collection.

[0035] Although embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A multi-layered composite wrapping paper bag cutting device, characterized by: The device includes a workbench, a mounting base plate, a sliding upright plate, rails, sliding blocks, a drive screw, a motor, and a cutting blade. The mounting base plate is mounted on the workbench. Rails are symmetrically arranged at both ends of the mounting base plate, and connecting plates are mounted on each rail via sliders. The sliding upright plate has a T-shaped structure, with both ends of the horizontal portion of the T-shape fixedly connected to the connecting plates. A threaded hole is provided at one end of the sliding upright plate, and a drive screw is threaded into the threaded hole. Both ends of the drive screw are rotatably mounted on bearing seats, which are mounted on the inner and outer sides of the sliding upright plate on the mounting base plate. A drive mechanism is mounted at the end of the drive screw on the outer side of the sliding upright plate. A cutting blade is mounted on the inner side of the sliding upright plate, and a motor that drives the cutting blade is mounted on the outer side of the sliding upright plate.

2. A multi-layered composite wrapping paper bag cutting device according to claim 1, wherein: The driving mechanism is a stepper motor.

3. A multi-layered composite wrapping paper bag cutting device according to claim 1, wherein: The driving mechanism is a driving handle installed at the end of the driving screw.

4. The multi-layer composite wrapping paper bag cutting device according to claim 1, characterized in that: It also includes a limiting block, which is provided on the outer side of the sliding upright plate on the mounting base plate.

5. The apparatus for cutting edges of a multi-layer composite wrapping paper bag to a predetermined size according to claim 1, wherein: It also includes a protective cover, on which a mounting bracket is installed, and the protective cover is mounted on the mounting bracket and positioned above the cutting blade.

6. A multi-ply composite wrapping paper bag sizing and slitting apparatus as defined in claim 1, wherein: It also includes an air blowing mechanism, which includes a fan, an air blowing pipe and a support frame. The fan is installed inside the workbench, and an air blowing pipe is connected to the air blowing port of the fan. The air blowing pipe is led out from the table surface of the workbench and supported on the support frame. The front end of the air blowing pipe forms an air blowing nozzle, which is set opposite to the edge of the mounting base plate.

7. A multi-ply composite wrapping paper bag sizing and slitting apparatus as defined in claim 6, wherein: The support frame includes a base, an adjusting screw, an internally threaded tube, a universal ball joint, and a support claw. The base is installed on the workbench, the adjusting screw is installed on the base, the internally threaded tube is threaded onto the adjusting screw, and the support claw is installed on the top of the internally threaded tube via the universal ball joint. The air blowing pipe is supported on the support claw.

8. A multi-layered composite wrapping paper bag cutting device according to claim 1, wherein: It also includes a guide plate, which is a horizontally arranged L-shaped structure. One side of the L-shaped structure is placed inside the mounting base plate, and the other side of the L-shaped structure is placed at the side end of the mounting base plate.

9. A multi-ply composite wrapping paper bag sizing and slitting apparatus as defined in claim 6, wherein: It also includes a waste collection basket, which is set on the ground opposite the air nozzle.