Splitting machine for plastic packaging bag production

By introducing a sliding box, a fixed clamping plate, and a telescopic cylinder into the slitting machine, combined with a motor-driven gear and rack system, the problem of cutting position deviation of plastic packaging bags was solved, achieving stable cutting and efficient production.

CN224145496UActive Publication Date: 2026-04-21ZHEJIANG NORMAL UNIV
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG NORMAL UNIV
Filing Date
2025-03-04
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing slitting machines lack positioning devices when faced with fluctuations in the rotation speed of the plastic packaging bag feed roll, resulting in offset cutting positions, deformation of the plastic packaging bag, or severing of the sealing head, thus failing to meet usage requirements.

Method used

A slitting machine comprising a worktable, a positioning component, and a cutting component was designed. Through the cooperation of a sliding box, a fixed clamping plate, and a telescopic cylinder, it achieves precise positioning and stable cutting of packaging bags. The machine utilizes a motor-driven gear and rack system and a telescopic cylinder to drive the cutter for cutting, ensuring the accuracy of the cutting position.

Benefits of technology

It achieves precise positioning and stable cutting of plastic packaging bags even with fluctuations in the feed roll speed, avoiding cutting position deviation and damage to the sealing head, thus improving cutting efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224145496U_ABST
    Figure CN224145496U_ABST
Patent Text Reader

Abstract

The utility model discloses a splitting machine for plastic packaging bag production, and belongs to the technical field of splitting machines. A dividing and cutting machine for plastic packaging bag production is used for cutting plastic packaging bags and comprises a workbench; the feeding box is fixedly connected with the workbench; the connecting shaft abuts against the feeding box; the bracket is fixedly connected with the workbench; the sliding box is horizontally and slidably connected with the workbench; the motor is located in the sliding box and fixedly connected with the sliding box; the rack is fixedly connected with the bracket; the gear is fixedly connected with an output shaft of the motor and is meshed with the rack; the fixed clamping plate is fixedly connected with the sliding box; the telescopic air cylinder I is fixedly connected with the sliding box; the movable clamping plate is fixedly connected with a piston of the telescopic cylinder I; the fixing assembly is used for fixing one end of the plastic packaging bag; and the cutting assembly is used for cutting the plastic packaging bags. The splitting machine for plastic packaging bag production has the beneficial effect that the splitting machine for plastic packaging bag production is convenient to position.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of slitting machine technology, and more specifically, to a slitting machine for producing plastic packaging bags. Background Technology

[0002] Plastic packaging bags are commonly used packaging materials in daily life, widely used for packaging snacks, various toys and daily products. The demand for plastic packaging bags is large, and in the production process, whole sheets of plastic blanks need to be cut into sizes suitable for production, which can avoid material waste.

[0003] Existing slitting machines often cut packaging bags at a fixed frequency and lack positioning devices. When the rotation speed of the feeding roll fluctuates, the cutting position of the plastic packaging bag often shifts, causing the plastic packaging bag to deform or even sever the sealing head at the bottom of the plastic packaging bag. This renders the plastic packaging bag unusable for users to store items and fails to meet people's needs. To address this, we propose a slitting machine for plastic packaging bag production.

[0004] Therefore, a slitting machine for producing plastic packaging bags with easy positioning is provided. Utility Model Content

[0005] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0006] To address the technical problems mentioned in the background section, some embodiments of this application provide a slitting machine for producing plastic packaging bags, used for cutting plastic packaging bags, comprising: a worktable; a feeding box fixedly connected to the worktable; a connecting shaft abutting against the feeding box; a support fixedly connected to the worktable; a sliding box horizontally slidably connected to the worktable; a motor located inside the sliding box and fixedly connected to the sliding box; a rack fixedly connected to the support; a gear fixedly connected to the output shaft of the motor and meshing with the rack; a fixed clamping plate fixedly connected to the sliding box; a telescopic cylinder fixedly connected to the sliding box; a movable clamping plate fixedly connected to the piston of the telescopic cylinder; a fixing assembly for fixing one end of the plastic packaging bag; and a cutting assembly for cutting the plastic packaging bag.

[0007] Furthermore, the worktable is provided with a slide groove extending along the length of the worktable; the sliding box moves along the slide groove.

[0008] Furthermore, the feeding box includes a second slide groove; the connecting shaft portion is located within the second slide groove.

[0009] Furthermore, the feeding box includes a discharge port; the discharge port is used for discharging plastic packaging bags.

[0010] Furthermore, the fixing assembly includes: a telescopic cylinder II, the cylinder body of which is fixedly connected to the bracket; a top plate, which is fixedly connected to the piston of the telescopic cylinder II; a pressure rod, which is fixedly connected to the top plate; and a pad, which is fixedly connected to the pressure rod. The feeding box includes a protrusion. The protrusion and the pad are used to fix one end of the plastic packaging bag.

[0011] Furthermore, the bracket and the feeding box are integrally formed.

[0012] Furthermore, the cutting assembly includes: a telescopic cylinder three, fixedly connected to the worktable; a cutting plate, fixedly connected to the piston of the telescopic cylinder three; and a cutter, fixedly connected to the cutting plate.

[0013] Furthermore, the worktable includes a cutting hole; the cutting hole is for a cutter to pass through and is spaced apart from the cutter.

[0014] Furthermore, the cutter is provided in multiple parts; the multiple cutters are equidistantly distributed along the length of the worktable.

[0015] Furthermore, the bracket includes a through slot; the through slot is used to pass through the output shaft of the motor and is spaced apart from the output shaft of the motor.

[0016] The beneficial effects of this application are as follows: It provides a slitting machine for producing plastic packaging bags that is easy to position, and the specific effects are as follows:

[0017] 1. When the sliding box slides to the left end, the telescopic cylinder can be shortened to drive the moving clamping plate down, so that the moving clamping plate and the fixed clamping plate close together to clamp the packaging bag to be cut. After clamping, the sliding box slides along the slide groove to the rightmost end for cutting. This allows control of the cutting distance and positioning of the cutting position.

[0018] 2. When cutting is required, the telescopic cylinder three can be activated to control its shortening. The telescopic cylinder three drives the cutting plate upward, causing the cutter to rise from the cutting hole and cut the packaging bag. During cutting, the packaging bag is clamped on both the left and right sides, keeping the packaging bag in a taut state, which can stably cut the packaging bag. Multiple cutters can be used to cut multiple segments at once, avoiding the reduction of work efficiency caused by single positioning and single cutting.

[0019] 3. This slitting machine for producing plastic packaging bags can control the distance of each cut, avoiding cutting off the sealing parts and affecting the use effect of the packaging bags. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0021] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0022] In the attached diagram:

[0023] Figure 1 This is an overall schematic diagram based on an embodiment of this application;

[0024] Figure 2 This is a structural diagram of a part of an embodiment, mainly showing the structure;

[0025] Figure 3 yes Figure 1 Enlarged view of part A.

[0026] Figure label:

[0027] Workbench 1, Support Leg 2, Positioning Component 3, Bracket 31, Slide 1 32, Sliding Box 33, Fixed Clamping Plate 34, Telescopic Cylinder 1 35, Moving Clamping Plate 36, Through Slot 37, Gear 38, Rack 39, Telescopic Cylinder 2 310, Top Plate 311, Pressure Rod 312, Shim 313, Boss 314, Cutting Component 4, Telescopic Cylinder 3 41, Cutting Plate 42, Cutter 43, Cutting Hole 44, Feeding Box 5, Slide 2 6, Material Roll 8, Discharge Port 9. Detailed Implementation

[0028] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0029] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0030] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0031] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0032] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] Reference Figure 1-3 A slitting machine for producing plastic packaging bags, used for cutting plastic packaging bags, includes: a worktable 1, a support frame, a positioning assembly, and a cutting assembly. The worktable 1 has a rectangular plate structure, and the upper ends of four support legs 2 are fixedly connected to the four corners of the lower end of the worktable 1.

[0034] Positioning component 3 includes a bracket 31, a sliding groove 32, a sliding box 33, a fixed clamping plate 34, a telescopic cylinder 35, a movable clamping plate 36, a drive component, and a fixing component. The lower ends of two brackets 31 are fixedly connected to the front and rear ends of the upper surface of the worktable 1. Two transverse sliding grooves 32 are respectively opened at the front and rear ends of the upper surface of the worktable 1. The two sliding grooves 32 are transversely slidably connected to two sliding boxes 33. The inner end of the sliding box 33 is fixedly connected to the fixed clamping plate 34, and the fixed clamping plate 34 is fixedly connected to the sliding box 33. The cylinder body of the telescopic cylinder 35 is fixedly connected to the sliding box 33. The upper end of the telescopic cylinder 35 is fixedly connected to the movable clamping plate 36. The fixed clamping plate 34 includes a receiving hole, and the cylinder body of the telescopic cylinder 35 is located within the receiving hole so that the fixed clamping plate 34 and the movable clamping plate 36 can close together. The drive assembly includes a through slot 37, a gear 38, and a rack 39. Two through slots 37 are respectively opened at the front and rear ends of the bracket 31. A motor is installed inside the sliding box 33. The gear 38 is fixedly connected to the output shaft of the motor. The rack 39 is located at one end of the bracket 31 and is fixedly connected to the bracket 31. The gear 38 and rack 39 are meshed. The fixing assembly includes a telescopic cylinder 310, a top plate 311, a pressure rod 312, a gasket 313, and a boss 314. The lower ends of the two telescopic cylinders 310 are fixedly connected to the right ends of the upper surfaces of the two brackets 31. The upper ends of the two telescopic cylinders 310 are fixedly connected to the outer ends of the lower surfaces of the two top plates 311. The upper end of the pressure rod 312 is fixedly connected to the inner end of the lower surface of the top plate 311. The lower end of the pressure rod 312 is fixedly connected to the upper end of the gasket 313. The lower end of the boss 314 is fixedly connected to the upper end of the worktable 1.

[0035] The workbench 1 supports the main structure, and the positioning component 3 is used for positioning. During use, power is provided by the drive component to drive the sliding box 33 to slide repeatedly along the slide groove 32. When the sliding box 33 slides to the left end, the telescopic cylinder 35 can be controlled to shorten, causing the moving clamp 36 to descend, closing with the fixed clamp 34 to clamp the packaging bag to be cut. After clamping, the sliding box 33 slides along the slide groove 32 to the rightmost end for cutting, thus controlling the cutting distance and positioning the cutting position. The cutting component 4 is used to cut the packaging bag. When drive is needed, the motor can be started, driving the gear 38 to rotate. The rack 39 is fixed, and the gear... Engaging with rack 39, gear 38 rotates to drive sliding box 33 to move along slide groove 32, completing the driving function. To ensure that the position of the packaging bag to be cut is fixed after one cut and that the cutting accuracy is not affected by small displacements caused by external factors, movable clamp 36 and fixed clamp 34 press the cutting point after the packaging bag is positioned. When pressing is required, telescopic cylinder 310 can be shortened. Telescopic cylinder 310 drives top plate 311, pressure rod 312 and pad 313 to descend, so that the pad 313 can contact the boss 314 to press the packaging bag to be cut and fix its position. When it is necessary to pull the packaging bag to be positioned again, the pressing can be released.

[0036] The cutting assembly 4 includes a telescopic cylinder 3 41, a cutting plate 42, a cutter 43, and cutting holes 44. The upper ends of four telescopic cylinders 3 41 are fixedly connected to the four corners of the lower end of the worktable 1. The lower ends of the four telescopic cylinders 3 41 are fixedly connected to the four corners of the upper end of the cutting plate 42. The lower ends of the cutter 43 are fixedly connected to the upper end of the cutting plate 42 at equal intervals. Cutting holes 44 corresponding to the positions of the cutter 43 are provided on the upper end of the worktable 1. When cutting is required, the telescopic cylinder 3 41 can be activated to shorten it. The telescopic cylinder 3 41 drives the cutting plate 42 upward, causing the cutter 43 to rise from the cutting holes 44 and cut the packaging bag. During cutting, both ends of the packaging bag are clamped (one end is fixed to the fixed clamp 34 via a movable clamp 36, and the other end is fixed to the boss 314 via a gasket 313), keeping the packaging bag taut and ensuring accurate positioning while maintaining the cutting position.

[0037] It also includes a feeding box 5, a second chute 6, and a discharge port 9. The lower end of the feeding box 5 is fixedly connected to the upper right end of the worktable 1. Two second chute 6s are respectively opened at the front and rear ends of the upper surface of the feeding box 5, and the discharge port 9 is opened at the left end of the feeding box 5. In use, the packaging bag roll to be cut can be placed in the feeding box 5, and the second chute 6 facilitates feeding. The discharge port 9 is used to pull the packaging bag to the positioning component for positioning and cutting.

[0038] It also includes a connecting shaft 7 and a material roll 8. The lower end of the second slide 6 is rotatably connected to the front and rear ends of the connecting shaft 7, and the material roll 8 is sleeved on the outside of the connecting shaft 7. In use, the packaging bag material roll is placed in the feeding box 5 through the second slide 6. The lower end of the second slide 6 is arc-shaped, which facilitates the material roll 8 to drive the connecting shaft 7 to rotate.

[0039] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A slitting machine for producing plastic packaging bags, used for cutting plastic packaging bags, comprising: Workbench; Its features are: The slitting machine for producing plastic packaging bags also includes: The feeding box is fixedly connected to the workbench; The connecting shaft abuts against the feeding box; The support frame is fixedly connected to the workbench; The sliding box is horizontally slidably connected to the worktable. The motor is located inside the sliding box and is fixedly connected to the sliding box; The rack is fixedly connected to the bracket; The gear is fixedly connected to the output shaft of the motor and meshes with the rack. The fixed clamp is fixedly connected to the sliding box; One telescopic cylinder is fixedly connected to the sliding box; The movable clamping plate is fixedly connected to a piston of the telescopic cylinder; A securing component used to secure one end of a plastic packaging bag; Cutting assembly for cutting plastic packaging bags.

2. The slitting machine for producing plastic packaging bags according to claim 1, characterized in that: The workbench is provided with a slide groove extending along the length of the workbench; The sliding box moves along the slide groove.

3. The slitting machine for producing plastic packaging bags according to claim 1, characterized in that: The feeding box includes a second chute; The connecting shaft portion is located within the second slide groove.

4. The slitting machine for producing plastic packaging bags according to claim 3, characterized in that: The feeding box includes a discharge port; The discharge port is used for discharging plastic packaging bags.

5. The slitting machine for producing plastic packaging bags according to claim 1, characterized in that: The fixing component includes: Telescopic cylinder two, the cylinder body of which is fixedly connected to the bracket; The top plate is fixedly connected to the piston of the telescopic cylinder 2; The pressure bar is fixedly connected to the top plate; The pad is fixedly connected to the pressure rod; The feeding box includes a protrusion; the protrusion and the pad are used to fix one end of the plastic packaging bag.

6. The slitting machine for producing plastic packaging bags according to claim 1, characterized in that: The bracket and the feeding box are integrally formed.

7. The slitting machine for producing plastic packaging bags according to claim 1, characterized in that: The cutting assembly includes: Telescopic cylinder three is fixedly connected to the worktable; The cutting plate is fixedly connected to the piston of the telescopic cylinder three; The cutter is fixedly connected to the cutting plate.

8. The slitting machine for producing plastic packaging bags according to claim 7, characterized in that: The workbench includes a cutting hole; The cut hole is for the cutter to pass through, and is spaced apart from the cutter.

9. The slitting machine for producing plastic packaging bags according to claim 8, characterized in that: The cutter is provided in multiple parts; The multiple cutting blades are equidistantly distributed along the length of the worktable.

10. The slitting machine for producing plastic packaging bags according to claim 1, characterized in that: The bracket includes a through groove; The through slot is used to pass through the output shaft of the motor and is spaced apart from the output shaft of the motor.