A PE stretch film cutting equipment
By designing the patching components in the PE winding film cutting equipment, the automatic patching of the PE film after cutting is achieved, solving the problem of PE film hanging after cutting by the winding machine, and improving the operating efficiency and neatness.
Patent Information
- Application Number
- CN202420911210.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-04-29
AI Technical Summary
When the winding machine wraps large objects, the cut PE film section often hangs down, and the staff needs to manually apply it to affect efficiency and tidyness.
A PE winding film cutting device is designed, which includes the patching components in the cutting chamber. It uses rotating bars, arc frames, round tubes and patch panels to automatically apply the cut PE film when cutting with the cutting knife.
Automatic PE film patching is realized after cutting, which eliminates the manual patching steps of staff, improves operating efficiency, and ensures the tidy and protective effect of PE film.
Smart Images
Figure CN222741562U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of PE film cutting, in particular to a PE wrapping film cutting device. Background Art
[0002] PE film, or polyethylene film, refers to a film produced from PE particles. PE film is moisture-proof and has low moisture permeability. Polyethylene film can be made into products with different properties, such as low-density, medium-density, high-density polyethylene and cross-linked polyethylene, according to different manufacturing methods and control methods. When processing PE film, cutting equipment is required;
[0003] When using a wrapping machine to wrap large objects with PE film, although the machine can automatically complete the wrapping according to the preset film thickness and automatically cut the film after completion, the PE film section left on the outside of the object after cutting the film often droops. During the subsequent transportation process, the staff needs to re-attach the drooping PE film to the already wrapped PE film to ensure the fit and neatness of the entire PE film.
[0004] Therefore, it is necessary to propose a PE stretch film cutting device to solve the above problems. Utility Model Content
[0005] The utility model aims to provide a PE wrapping film cutting device to solve the problem that when the wrapping machine mentioned above wraps a large object with PE film, although the machine can automatically complete the wrapping according to the preset wrapping film thickness and automatically cut the film after completion, the PE film section left on the outside of the object after cutting the film often droops. During the subsequent transportation process, the staff needs to re-attach the drooping PE film to the already wrapped PE film.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PE wrapping film cutting device, comprising a wrapping machine, a rotating seat, a knife seat, a cutting knife and an electric push rod driving the cutting knife, the surface of the rotating seat is provided with a cutting chamber, and the inner wall of the cutting chamber is provided with a fitting component for fitting the cut PE film;
[0007] The fitting component includes a support frame, a rotating bar, an arc frame, an arc groove, a circular tube, a sliding rod, a fitting plate and a spring. The support frame is arranged on the inner wall of the cutting chamber, the rotating bar is rotatably arranged on the inner wall of the support frame through a bearing, the arc frame is arranged on the inner wall of the cutting chamber on one side of the rotating bar, the arc groove is opened on one side of the arc frame, the circular tube has multiple and equidistant sliding arrangements on the inner wall of the arc groove, the rotating bar is in contact with the circular tube at one end close to the arc groove, the sliding rod is slidably arranged on the inner wall of the arc groove, the sliding rod is in contact with the circular tube at one side close to the circular tube, the fitting plates are arranged at both ends of the sliding rod, a spring is arranged on the end of the rotating bar away from the arc groove, and one end of the spring is fixed to the inner wall of the cutting chamber.
[0008] Preferably, the inner wall of the cutting chamber is provided with an auxiliary component for assisting the fitting plate to fit the film, including an airbag pump, an input end, an output end, a water tank, a pneumatic telescopic rod, a push plate and a water outlet pipe. The airbag pump is arranged on the side of the inner wall of the cutting chamber close to the spring, and the input end and the output end are respectively arranged on both sides of the airbag pump. Both the input end and the output end are provided with a one-way air inlet valve. The water tank is arranged on the side of the inner wall of the cutting chamber close to the airbag pump, the pneumatic telescopic rod is arranged on the inner wall of the water tank, the push plate is arranged at the protruding end of the pneumatic telescopic rod, the push plate is slidably connected to the inner wall of the water tank, the input end is connected to the pneumatic telescopic rod, the water outlet pipe is arranged on the top of the water tank, and the water outlet pipe is connected to the water tank.
[0009] Preferably, positioning rods are equidistantly arranged on the surface of the rotating seat.
[0010] Preferably, an avoidance groove is provided on the top of the cutting chamber.
[0011] Preferably, anti-slip cotton is provided on the side of the conforming plate away from the rotating strip.
[0012] Preferably, the water outlet pipe is arranged in an inclined shape.
[0013] Technical effects and advantages of the utility model:
[0014] 1. By setting up a fitting component, when the cutting knife cuts the PE film, the cutting knife will drive the fitting plate to fit the cut PE film segment, so that it fits tightly to the outside of the wound PE film, eliminating the need for staff to fit the PE film that falls after cutting, simplifying the operation process, improving the packaging efficiency, and ensuring the neatness and protection of the PE film on the outside of large objects.
[0015] 2. Before the tamping board tames the cut PE film, the cutting knife will first drive the auxiliary components to spray water on the outside of the wound PE film, which can moisten the surface of the PE film and reduce its surface tension. Then, the tamping board will tamping the hanging PE film, making it easier for the hanging PE film segment to fit on the outside of the wound PE film, thereby optimizing the tamping effect and ensuring the flatness and tightness of the PE film. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the overall structure of the PE stretch film cutting equipment of the utility model;
[0017] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle;
[0018] Figure 3 This is a schematic diagram of the utility model's wrapping machine, pasting plate and electric push rod;
[0019] Figure 4 For this utility model Figure 3 Enlarged view of point B in the middle;
[0020] Figure 5 This is a schematic diagram of the electric push rod, rotating bar and arc frame of the utility model;
[0021] Figure 6 It is a schematic diagram of the rotating bar, arc frame, arc groove, sliding rod and fitting plate of the utility model.
[0022] In the figure: 1. winding machine; 2. rotating seat; 3. cutting knife; 4. electric push rod; 5. cutting room; 6. fitting component; 601. support frame; 602. rotating bar; 603. arc frame; 604. arc groove; 605. round tube; 606. sliding rod; 607. fitting plate; 608. spring; 7. auxiliary component; 701. airbag inflator; 702. input end; 703. output end; 704. water storage tank; 705. pneumatic telescopic rod; 706. push plate; 707. water outlet pipe; 8. positioning rod; 9. avoidance groove; 10. anti-slip cotton; 100. knife seat; 101. supporting shaft. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] The utility model provides Figure 1 - Figure 6 The PE wrapping film cutting device shown in the figure comprises a wrapping machine 1, a rotating seat 2, a knife seat 100, a cutting knife 3 and an electric push rod 4 driving the cutting knife 3. The wrapping machine 1 is a device that drives the goods to rotate by rotating the rotating seat 2, thereby realizing the wrapping and wrapping of the goods. The goods to be packaged are placed on the rotating seat 2, and the goods are ensured to be placed stably. The wrapping machine 1 is started, and the required packaging parameters such as the number of wrapping layers and film tension are set through the control panel. The wrapping machine 1 starts working, and the rotating seat 2 drives the goods to rotate. At the same time, the wrapping machine 1 tightly wraps the PE film around the goods. The wrapping machine 1 has a support shaft 101 for placing the PE film roll, and the PE film is vertically placed on the support shaft 101. The rotating seat 2 is arranged on the lower side of the wrapping machine 1. The cutting knife 3 is arranged on the rotating seat 2, and the rotating seat 2 is provided with an electric push rod 4 that drives the cutting knife 3 to rotate. The cutting knife 3 can rotate to cut the PE film on the support shaft 101.
[0025] A cutting chamber 5 is provided on the surface of the rotating seat 2 for placing the knife holder 100, the cutting knife 3 and the electric push rod 4 on the rotating seat 2. This is mainly to place the knife holder 100, the cutting knife 3 and the electric push rod 4 in the cutting chamber 5 during the wrapping process, thereby avoiding unnecessary contact between these sharp objects and the outside world or other components during the operation of the machine.
[0026] The inner wall of the cutting chamber 5 is provided with a fitting component 6 for fitting the cut PE film. The fitting component 6 includes a support frame 601, a rotating bar 602, an arc frame 603, an arc groove 604, a round tube 605, a sliding rod 606, a fitting plate 607 and a spring 608. The support frame 601 is arranged on the inner wall of the cutting chamber 5. The rotating bar 602 is rotatably arranged on the inner wall of the support frame 601 through a bearing. The arc frame 603 is arranged on the inner wall of the cutting chamber 5 on one side of the rotating bar 602. The arc groove 604 is opened on one side of the arc frame 603. The round tube 605 has a plurality of equidistantly slidably arranged on the inner wall of the arc groove 604. One end of the rotating bar 602 close to the arc groove 604 is rotatably arranged on the inner wall of the round tube 605. The circular tube 605 is in contact with the sliding rod 606, and the sliding rod 606 is slidably set on the inner wall of the arc groove 604. The side of the sliding rod 606 close to the circular tube 605 is in contact with the circular tube 605. The fitting plate 607 is set at both ends of the sliding rod 606. The side of the fitting plate 607 away from the rotating bar 602 is provided with anti-skid cotton 10. The introduction of the anti-skid cotton 10 significantly enhances the friction between the fitting plate 607 and the PE film, thereby ensuring that the PE film can be more tightly and stably fitted on the fitting plate 607, and the anti-skid cotton 10 is made of soft material and will not cause damage to the PE film. A spring 608 is set at one end of the rotating bar 602 away from the arc groove 604, and one end of the spring 608 is fixed to the inner wall of the cutting chamber 5.
[0027] Positioning rods 8 are equidistantly arranged on the surface of the rotating seat 2, which play a role in precise positioning when placing objects. The presence of the positioning rods 8 allows the objects to be stably placed on the rotating seat 2, avoiding displacement during rotation or movement.
[0028] The inner wall of the cutting chamber 5 is provided with an auxiliary component 7 for fitting the film with an auxiliary fitting plate 607. The auxiliary component 7 is mainly used for: before the fitting plate 607 fits the cut PE film, the cutting knife 3 will first drive the auxiliary component 7 to spray water on the outside of the wound PE film, which can wet the surface of the PE film and reduce its surface tension, and then cooperate with the fitting plate 607 to fit the hanging PE film, so that the hanging PE film segment can be more easily fitted to the outside of the wound PE film.
[0029] The auxiliary component 7 includes an airbag pump 701, an input end 702, an output end 703, a water storage tank 704, a pneumatic telescopic rod 705, a push plate 706 and a water outlet pipe 707. The airbag pump 701 is arranged on the inner wall of the cutting chamber 5 near the spring 608, and the input end 702 and the output end 703 are respectively arranged on both sides of the airbag pump 701. The input end 702 and the output end 703 are both provided with a one-way air inlet valve. 04 is arranged on the inner wall of the cutting room 5 near the side of the airbag pump 701, the pneumatic telescopic rod 705 is arranged on the inner wall of the water tank 704, the push plate 706 is arranged at the protruding end of the pneumatic telescopic rod 705, the push plate 706 is slidingly connected to the inner wall of the water tank 704, the input end 702 is connected to the pneumatic telescopic rod 705, the water outlet pipe 707 is arranged on the top of the water tank 704, and the water outlet pipe 707 is connected to the water tank 704.
[0030] An avoidance groove 9 is provided on the top of the cutting chamber 5 , and the avoidance groove 9 is used to avoid the cutting knife 3 , the compliant plate 607 and the plug 708 .
[0031] It should be noted that the pneumatic telescopic rod 705 is provided with a spring for returning the push plate 706 , which is not shown in the figure and will not be described in detail here.
[0032] Working principle: When the wrapping machine 1 wraps the PE film around the outside of the object and needs to cut the PE film, the extended end of the electric push rod 4 is driven to extend to push the cutting knife 3 to cut the PE film. When the extended end of the electric push rod 4 extends, it pushes the cutting knife 3 to rotate. When the cutting knife 3 rotates to 90° or more than 90°, the PE film is cut off. At this time, the cutting knife 3 continues to rotate under the push of the extended end of the electric push rod 4. When the cutting knife 3 rotates and causes the knife seat 100 to contact the airbag pump 701, the airbag pump 701 is compressed. At this time, the output end 703 discharges the gas into the pneumatic telescopic rod 705. The pneumatic telescopic rod 70 The extended end of the push plate 706 extends out to push the push plate 706 to slide upwards, and the water in the water tank 704 is sprayed from the water outlet pipe 707 to the outside of the wound PE film. At this time, the electric push rod 4 continues to push to make the cutting knife 3 continue to rotate. When the knife seat 100 contacts the rotating bar 602 and presses the rotating bar 602 downward, the spring 608 is compressed and the other end of the rotating bar 602 is lifted to make the round tube 605 slide upwards along the arc groove 604. While the round tube 605 slides upwards, it pushes the sliding rod 606 and the tamping plate 607 to slide upwards along the arc groove 604, so that the tamping plate 607 tames the PE film that falls after cutting.
[0033] After the hanging PE film is attached, the extended end of the electric push rod 4 is driven to retract. At this time, the cutting knife 3 rotates in the opposite direction and releases the limit on the rotating bar 602. At this time, the spring 608 is reset to drive the rotating bar 602 to reset, so that the round tube 605 and the sliding rod 606 are reset successively to avoid obstruction of the object when the PE film is wrapped around the object again. When the cutting knife 3 rotates and does not contact the airbag pump 701, the airbag pump 701 is reset. At this time, the airbag pump 701 is reset and inflated through the input end 702 while the airbag pump 701 is reset. When the extended end of the electric push rod 4 is completely retracted, the cutting knife 3 is reset.
Claims
1. A PE wrapping film cutting device, comprising a wrapping machine (1), a rotating seat (2), a knife seat (100), a cutting knife (3) and an electric push rod (4) for driving the cutting knife (3), characterized in that: The surface of the rotating seat (2) is provided with a cutting chamber (5), and the inner wall of the cutting chamber (5) is provided with a fitting component (6) for fitting the cut PE film; The compliant component (6) comprises a support frame (601), a rotating bar (602), an arc frame (603), an arc groove (604), a round tube (605), a sliding rod (606), a compliant plate (607) and a spring (608); the support frame (601) is arranged on the inner wall of the cutting chamber (5); the rotating bar (602) is rotatably arranged on the inner wall of the support frame (601) through a bearing; the arc frame (603) is arranged on the inner wall of the cutting chamber (5) on one side of the rotating bar (602); the arc groove (604) is opened on one side of the arc frame (603); the round tube (60 5) There are multiple and equidistant sliding arrangements on the inner wall of the arc groove (604), the end of the rotating bar (602) close to the arc groove (604) contacts the circular tube (605), the sliding rod (606) is slidingly arranged on the inner wall of the arc groove (604), the side of the sliding rod (606) close to the circular tube (605) contacts the circular tube (605), the compliant plates (607) are arranged at both ends of the sliding rod (606), and a spring (608) is arranged on the end of the rotating bar (602) away from the arc groove (604), and one end of the spring (608) is fixed to the inner wall of the cutting chamber (5).
2. A PE stretch film cutting device according to claim 1, characterized in that: The inner wall of the cutting chamber (5) is provided with an auxiliary component (7) for applying an auxiliary applying plate (607) to apply the film to the film. The auxiliary component (7) comprises an airbag pump (701), an input end (702), an output end (703), a water storage tank (704), a pneumatic telescopic rod (705), a push plate (706) and a water outlet pipe (707). The airbag pump (701) is arranged on the inner wall of the cutting chamber (5) on a side close to the spring (608). The input end (702) and the output end (703) are respectively arranged on both sides of the airbag pump (701). The end (703) is provided with a one-way air inlet valve, the water storage tank (704) is arranged on the inner wall of the cutting chamber (5) close to the side of the airbag inflator (701), the pneumatic telescopic rod (705) is arranged on the inner wall of the water storage tank (704), the push plate (706) is arranged at the protruding end of the pneumatic telescopic rod (705), the push plate (706) is slidably connected to the inner wall of the water storage tank (704), the input end (702) is connected to the pneumatic telescopic rod (705), the water outlet pipe (707) is arranged at the top of the water storage tank (704), and the water outlet pipe (707) is connected to the water storage tank (704).
3. The PE stretch film cutting device according to claim 1, characterized in that: Positioning rods (8) are arranged at equal intervals on the surface of the rotating seat (2).
4. The PE stretch film cutting device according to claim 2, characterized in that: The top of the cutting chamber (5) is provided with an avoidance groove (9).
5. The PE stretch film cutting device according to claim 2, characterized in that: The side of the compliant plate (607) away from the rotating bar (602) is provided with anti-slip cotton (10).
6. The PE stretch film cutting device according to claim 2, characterized in that: The water outlet pipe (707) is arranged in an inclined shape.