Plastic packaging film cutting and aligning device
By using double-layer plywood and buffer spring to stabilize the cutting knife in plastic packaging film cutting equipment, and setting aligned transfer plate limit film belt on the discharge roller, the problems of cutting knife misalignment and film belt offset are solved, and the points are improved Cutting accuracy and stability ensure the quality of the bag making.
Patent Information
- Application Number
- CN202420904441.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-04-28
AI Technical Summary
Existing plastic packaging film slitting equipment is prone to misalignment after long-term use of the cutter, resulting in slitting sizing errors, and the film tape is easily offset during the slitting process, affecting the position of the film roll on the discharge roller, resulting in bag making Quality issues.
A plastic packaging film cutting and alignment device including two left and right chassis arranged in parallel is designed. The cutting knife is stabilized by providing a double-layer plywood and a buffer spring on the periphery of the annular tool holder, and an alignment transfer plate is provided on the discharge roller to limit the Position the film tape to ensure that the film tape is accurately wrapped around the paper core.
It effectively reduces the slitting size error, improves the long-term use stability of the cutting knife, and ensures the normal material handling of the membrane belt, avoids bag quality problems caused by offset.
Smart Images
Figure CN222225532U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plastic packaging bag film processing equipment, and more specifically to a plastic packaging film cutting and alignment device. Background Art
[0002] Among the various processes in the production of plastic packaging film flexible packaging, printing, laminating, bag making and other processes are often valued due to their high technicality and complex process, and require a large amount of manpower and material resources, while the slitting process is often overlooked. However, in fact, slitting is an important link in the production of flexible packaging. It is the last process in the production of roll film products and the previous process of bag making, playing a connecting role. If the quality of the slitting film is not good, it will affect the quality and loss of bag making, and even the entire product may be scrapped due to slitting errors. Therefore, it is very necessary for flexible packaging companies to pay attention to the slitting process.
[0003] The existing slitting process mainly cuts the wider roll film produced by the film blowing machine into several products of the same or different widths. In the actual production and processing process, the following problems exist: First, the cutter is prone to misalignment after working for a long time, resulting in a large error in the slitting size; second, during the feeding process of slitting, the film tape is prone to shift, resulting in the position of the roll film on the discharge roller being shifted, affecting the normal feeding of the film tape. Utility Model Content
[0004] The purpose of the utility model is to provide a plastic packaging film cutting alignment device, which can, on the one hand, enhance the stability of the cutter in long-term use and reduce the error of the slitting size; on the other hand, it can align and limit the film tape in the feeding process to ensure that the slitting film tape is accurately wound on the paper core of the discharge roller to achieve normal feeding.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0006] A plastic packaging film cutting and alignment device comprises two parallel left and right chassis, wherein a control box is provided in front of the left chassis, a discharging roller is provided at the upper and lower ends in front of the left and right chassis, and a feeding tensioning roller staggered up and down is provided at the rear of the left and right chassis, wherein a lifting roller is provided at the upper end position in front of the upper feeding tensioning roller, a mounting shaft is provided between the lifting roller and the feeding tensioning roller located above, a plurality of annular knife seats are provided on the mounting shaft at intervals, an annular cutter is embedded and installed on the outer periphery of the middle position of the annular knife seat, a mounting plate is provided between the left and right chassis above the mounting shaft, double-layer plywood is provided at the corresponding positions of the lower end of the mounting plate and the annular knife seat, the annular knife seat is clamped between the lower ends of the double-layer plywood, and buffer springs are filled between the inner side of the upper end of the double-layer plywood and the annular cutter.
[0007] As a further optimization of the scheme of the present application, pressure rollers are provided above the discharging rollers at the upper and lower ends between the left and right chassis, wherein alignment components are provided between the upper pressure roller and the top roller and between the lower pressure roller and the feed tensioning roller, and the alignment components include a connecting rod, a plurality of rotating bearing seats are mounted on the rod body of the connecting rod at intervals, a circular alignment rotating plate is installed at the outer movable end of the rotating bearing seat, and the slit film strips are clamped between adjacent alignment rotating plates.
[0008] As a further optimization of the solution of the present application, the film strip is tensioned by the upper and lower staggered feed tensioning rollers and then enters under several annular knife seats. After slitting, it is wound around the paper cores of the upper and lower discharge rollers to form a roll film.
[0009] As a further optimization of the solution of the present application, one side of the discharging roller is connected to the driving motor inside the left chassis through a coupling and the other side is mounted in front of the right chassis through a rotatable support bracket. The pressing roller is rotatably connected to the inner side of the chassis through rotating shafts on both sides. The feed tensioning roller, top feed roller, mounting shaft, mounting plate and both sides of the connecting rod are welded and fixed to the inner side of the chassis.
[0010] As a further optimization of the solution of the present application, the alignment rotating plate rotates following the movement of the film strip and limits the two sides of the film strip.
[0011] As a further optimization of the solution of the present application, the spacing between the alignment rotating plate and the annular knife seat is adapted to the width of the film roll to be slitting.
[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0013] In the utility model, a double-layer clamping plate structure is arranged on the periphery of the existing annular knife seat. On the one hand, the double-layer clamping plate is used to limit the annular knife seat to the left and right, and on the other hand, the buffer spring inside is used to buffer and dissipate energy of the annular cutter, which can enhance the stability of the cutter in long-term use and reduce the error of the cutting size.
[0014] In the utility model, a plurality of alignment rotating plate structures with matching widths are arranged on both sides of the film tape after slitting, which can rotate along with the movement of the film tape and limit the two sides of the film tape, thereby ensuring that the film tape after slitting is accurately wound on the paper core of the discharge roller and maintaining normal material feeding. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the front structure of the cutting alignment device of the utility model;
[0016] Figure 2 This is a schematic diagram of the double-layer plywood connection structure of the utility model (part of the mounting plate is removed);
[0017] Figure 3 This is a schematic diagram of the installation structure of the alignment rotating plate of the utility model;
[0018] Figure 4 This is a schematic diagram of the rear structure of the cutting alignment device of the utility model;
[0019] In the figure: 1. Chassis; 2. Control box; 3. Discharge roller; 4. Pressing roller; 5. Support frame; 6. Film belt; 7. Film roll; 8. Paper core; 9. Mounting shaft; 10. Mounting plate; 11. Annular knife seat; 12. Annular cutter; 13. Double-layer plywood; 14. Buffer spring; 15. Connecting rod; 16. Rotating bearing seat; 17. Alignment turn plate; 18. Feed tensioning roller. DETAILED DESCRIPTION
[0020] In order to make the technical means, creative features, objectives and effects achieved by the utility model easy to understand, the utility model is further explained below with reference to specific diagrams.
[0021] In order to solve the problem that the existing slitting machine cutter is prone to misalignment after working for a long time, resulting in large errors in the slitting size, such as Figure 1 and Figure 4 As shown, the present application comprises two parallel left and right chassis 1, wherein a control box 2 is provided in front of the left chassis 1, a discharge roller 3 is provided at the upper and lower ends in front of the left and right chassis 1, and a feed tensioning roller 18 staggered up and down is provided at the rear of the left and right chassis 1, wherein a top feed roller is provided at the upper end position in front of the upper feed tensioning roller 18, and a mounting shaft 9 is provided between the top feed roller and the feed tensioning roller 18 located above, and the film belt 6 enters the area between the left and right chassis 1 after being tensioned by the upper and lower staggered feed tensioning rollers 18, and is wound around the paper core 8 of the upper and lower discharge rollers 3 to form a roll film 7 after being slit;
[0022] like Figure 2 As shown, a plurality of annular knife seats 11 are arranged at intervals on the mounting shaft 9, an annular cutter 12 is embedded and installed on the outer periphery of the middle position of the annular knife seat 11, a mounting plate 10 is arranged between the left and right chassis 1 above the mounting shaft 9, a double-layer plywood 13 is arranged at the corresponding position of the lower end of the mounting plate 10 and the annular knife seat 11, the annular knife seat 11 is clamped between the lower ends of the double-layer plywood 13, and a buffer spring 14 is filled between the inner side of the upper end of the double-layer plywood 13 and the annular cutter 12;
[0023] Specifically, the double-layer clamping plate 13 is used to limit the annular knife holder 11 to the left and right, thereby reducing the loosening and dislocation phenomenon of the annular knife holder 11 after long-term work. At the same time, the inner buffer spring 14 is used to buffer and dissipate energy of the annular cutter 12, thereby alleviating the vibration generated during the cutting process of the annular cutter 12 and improving the cutting stability.
[0024] In order to solve the existing problem that the film belt 9 is easily offset during the slitting process, resulting in the position of the roll film 7 on the discharge roller 3 being offset, as shown in FIG. Figure 3 As shown, a pressing roller 4 is provided above the discharge roller 3 at the upper and lower ends between the left and right chassis 1, wherein an alignment component is provided between the pressing roller 4 and the top roller located at the upper part and between the pressing roller 4 and the feed tensioning roller 18 located at the lower part, and the alignment component comprises a connecting rod 15, and a plurality of rotating bearing seats 16 are sleeved on the rod body of the connecting rod 15 at intervals, and a circular alignment rotating plate 17 is installed at the outer movable end of the rotating bearing seat 16, wherein the slit film strip 6 is clamped between adjacent alignment rotating plates 17;
[0025] Specifically, the two sides of the slit film strip 6 are limited by alignment rotating plates 17 with matching widths, and the alignment rotating plates 17 rotate along with the movement of the film strip 6 to ensure that the slit film strip 6 is accurately wound around the paper core 8 of the discharge roller 3 to maintain normal material feeding.
[0026] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.
[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A plastic packaging film cutting and alignment device, comprising two parallel left and right chassis, wherein a control box is arranged in front of the left chassis, a discharging roller is arranged at the upper and lower ends in front of the left and right chassis, and a feeding tensioning roller staggered up and down is arranged at the rear of the left and right chassis, wherein a top-feeding roller is arranged at the upper end position in front of the upper feeding tensioning roller, a mounting shaft is arranged between the top-feeding roller and the upper feeding tensioning roller, a plurality of annular knife seats are arranged on the mounting shaft at intervals, and an annular cutting knife is embedded and installed on the outer periphery of the middle position of the annular knife seat, characterized in that: A mounting plate is provided between the left and right chassis above the mounting axis, and double-layer plywood is provided at the corresponding positions of the lower end of the mounting plate and the annular knife seat, the annular knife seat is clamped between the lower ends of the double-layer plywood, and buffer springs are filled between the inner side of the upper end of the double-layer plywood and the annular cutter.
2. A plastic packaging film cutting and alignment device according to claim 1, characterized in that: A pressure roller is provided above the discharge rollers at the upper and lower ends between the left and right chassis, wherein an alignment component is provided between the upper pressure roller and the top roller and between the lower pressure roller and the feed tensioning roller, the alignment component comprises a connecting rod, a plurality of rotating bearing seats are provided on the rod body of the connecting rod at intervals, a circular alignment rotating plate is installed at the outer movable end of the rotating bearing seat, wherein the slit film strips are clamped between adjacent alignment rotating plates.
3. A plastic packaging film cutting and alignment device according to claim 2, characterized in that: The film strip is tensioned by upper and lower staggered feeding tensioning rollers and then enters under a plurality of annular knife seats. After being cut, it is wound around the paper cores of the upper and lower discharging rollers to form a roll film.
4. A plastic packaging film cutting and alignment device according to claim 3, characterized in that: One side of the discharging roller is connected to the driving motor inside the left chassis through a coupling and the other side is mounted in front of the right chassis through a rotatable support bracket. The pressing roller is rotatably connected to the inner side of the chassis through the rotating shafts on both sides. The feed tensioning roller, top feed roller, mounting shaft, mounting plate and both sides of the connecting rod are welded and fixed to the inner side of the chassis.
5. A plastic packaging film cutting and alignment device according to claim 4, characterized in that: The alignment rotating plate rotates following the movement of the film strip and limits the positions of the two sides of the film strip.
6. A plastic packaging film cutting and alignment device according to claim 5, characterized in that: The spacing between the alignment rotating plate and the annular knife seat is adapted to the width of the film roll to be slitting.