Film scratching mechanism

Abstract

The utility model relates to a film scratching mechanism which comprises a rack, an electromagnetic driving device fixed on the rack, a connecting plate connected with the output end of the electromagnetic driving device, a tool apron mounting plate connected with the connecting plate, a tool apron fixed on the tool apron mounting plate and an elastic telescopic tool bit fixed on the tool apron. The precise film cutting device with the electromagnetically-driven and elastically-telescopic tool bit is designed, the tool bit is accurately controlled to ascend and descend through electromagnetically driving, the precise film cutting device adapts to different film materials and thicknesses, and quick response and high-precision cutting are achieved. The elastic tool bit can retract in a self-adaptive mode according to fluctuation of the thin film, damage to the thin film and abrasion to equipment during cutting are reduced, and therefore the durability and working efficiency of the equipment are enhanced, and the cutting quality of products is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of film processing, in particular to a film scratching mechanism. Background Art

[0002] In the existing film processing and packaging industry, film cutting equipment is an indispensable and important component, which is often used to split continuous film rolls or cut films of specified lengths. However, traditional film cutting structures generally have some technical problems and limitations. For example, in existing film cutting equipment, the lifting and adjustment of the cutter is usually fixed, manually adjusted, or driven by an eccentric wheel. The lifting and lowering of the cutter cannot be accurately adjusted dynamically according to the slight changes in the film thickness, which will cause uneven pressure on the film during cutting, thereby affecting the cutting quality. Utility Model Content

[0003] In view of the deficiencies in the background technology, the utility model provides a film-scratching mechanism.

[0004] The technical solution adopted by the utility model is: a film-scraping mechanism, including a frame, an electromagnetic drive device fixed on the frame, a connecting plate connected to the output end of the electromagnetic drive device, a knife seat mounting plate connected to the connecting plate, a knife seat fixed on the knife seat mounting plate, and an elastic telescopic knife head fixed on the knife seat.

[0005] Furthermore, the rack includes a mounting base plate, side plates fixed on both sides of the mounting base plate, and a top plate fixed on the top of the side plates.

[0006] Furthermore, a buffer pull ring is connected between the connecting plate and the top plate.

[0007] Furthermore, the electromagnetic drive device includes an electromagnetic sleeve, a coil located in the electromagnetic sleeve, and an output mounting plate connected to the coil, and the output mounting plate is connected to the connecting plate.

[0008] Furthermore, it also includes a guide block and a guide column, wherein the guide column is fixed on the mounting base plate, the guide block is slidably mounted on the guide column through a guide hole on the guide block, one end of the guide block is connected to the connecting plate, and the other end is connected to the tool holder mounting plate.

[0009] Furthermore, it also includes a pressure plate, and an opening is provided on one side of the tool holder mounting plate. After the tool holder is installed in the above opening, it is pressed and fixed on the tool holder mounting plate by the pressure plate, and the pressure plate and the tool holder mounting plate are fixedly connected by bolts.

[0010] The beneficial effects of the utility model are as follows: the lifting and lowering of the cutter head of the utility model is driven by an electromagnetic drive device, which can realize precise control and rapid response of the cutter head, thereby adapting to the cutting needs of films of different thicknesses and materials, and improving the accuracy and consistency of cutting. In addition, the cutter head adopts an elastic telescopic cutter head, which can adaptively retract and adjust when encountering uneven films, and can better adapt to changes in film thickness, reduce damage to the film during cutting, and reduce the wear of the equipment itself due to hard contact, which is beneficial to improving the overall equipment performance and service life, and improving the cutting quality of the product.

[0011] In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages.

[0012] The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a side schematic diagram of the utility model.

[0015] Figure 1-Figure 2 In: 1. Frame; 2. Electromagnetic drive device; 3. Connecting plate; 4. Knife holder mounting plate; 5. Knife holder; 6. Elastic telescopic cutter head; 7. Mounting base plate; 8. Side plate; 9. Fixed plate; 10. Buffer pull ring; 11. Electromagnetic sleeve; 12. Coil; 13. Output mounting plate; 14. Guide block; 15. Guide column; 16. Press plate; 17. Opening. DETAILED DESCRIPTION

[0016] 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 of 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.

[0017] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0018] The utility model provides a film-scratching mechanism.

[0019] In this embodiment, refer to Figure 1-Figure 2 The film cutting mechanism includes a frame 1, an electromagnetic driving device 2 fixed on the frame 1, a connecting plate 3 connected to the output end of the electromagnetic driving device 2, a knife seat mounting plate 4 connected to the connecting plate 3, a knife seat 5 fixed on the knife seat mounting plate, and an elastic telescopic knife head 6 fixed on the knife seat.

[0020] The lifting of the cutter head of the utility model is driven by an electromagnetic drive device, which can realize precise control and rapid response of the cutter head, so as to adapt to the cutting needs of films of different thicknesses and materials and improve the cutting accuracy and consistency. In addition, the cutter head adopts an elastic telescopic cutter head, which can adaptively retract and adjust when encountering uneven films, and can better adapt to changes in film thickness, reduce damage to the film during cutting, and reduce the wear of the equipment itself due to hard contact, which is beneficial to improving the overall equipment performance and service life, and improving the cutting quality of the product.

[0021] Among them, the elastic telescopic cutter head is a conventional cutter in the die cutting field. It belongs to the existing technology and can be directly matched with the cutter holder and purchased externally. The design of this cutter head is mainly to adapt to films or soft materials of different thicknesses, to ensure that appropriate contact force can be provided during the cutting process, so as not to over-squeeze the film to cause its deformation, and to ensure effective cutting. The elastic telescopic cutter head can realize the telescopic function through built-in springs, airbags or other elastic elements, and can automatically adjust the contact pressure between the cutter head and the film according to the thickness of the film, thereby improving the cutting accuracy and product quality.

[0022] In addition, the electromagnetic drive coil is energized, the electromagnet is attracted, and the knife is lowered. When the reverse force on the knife tip is greater than the electromagnetic attraction pressure, the knife will be lifted, and the pressure of the knife will remain unchanged. Therefore, the electromagnetic drive can also lift the knife automatically according to the thickness to adapt to different working conditions.

[0023] Specifically, the frame includes a mounting base plate 7, side plates 8 fixed on both sides of the mounting base plate 7, and a top plate 9 fixed on the top of the side plates; a buffer pull ring 10 is connected between the connecting plate and the top plate.

[0024] As shown in the attached figure of the specification, the frame adopts a frame structure, and a buffer pull ring is connected between the connecting plate and the top plate, which can play a buffering role, absorb and disperse the vibration and impact force generated during the film stripping process, effectively protect the equipment, and improve its service life and stability.

[0025] Specifically, the electromagnetic drive device includes an electromagnetic sleeve 11, a coil 12 located in the electromagnetic sleeve, and an output mounting plate 13 connected to the coil, and the output mounting plate is connected to the connecting plate.

[0026] The core structure of the electromagnetic drive device includes an electromagnetic sleeve, and a coil is placed inside the electromagnetic sleeve. When the coil is energized, a magnetic field effect is generated, which in turn drives the output mounting plate connected to it to move. The output mounting plate is further connected to the connecting plate. The electromagnetic drive device can control the up and down movement of the connecting plate through the electromagnetic conversion effect of the coil, and finally realize the power transmission and control of the entire film-scraping mechanism.

[0027] Specifically, it also includes a guide block 14 and a guide column 15. The guide column is fixed on the mounting base plate. The guide block is slidably mounted on the guide column through a guide hole on the guide block. One end of the guide block is connected to the connecting plate, and the other end is connected to the tool holder mounting plate.

[0028] By setting up a guide structure consisting of a guide block and a guide column, it is ensured that the knife seat mounting plate and the connecting plate can move smoothly and accurately along the preset path when performing the film cutting action, avoiding cutting errors caused by offset and further improving the film cutting accuracy.

[0029] Specifically, it also includes a pressing plate 16. An opening 17 is provided on one side of the tool holder mounting plate. After the tool holder is installed in the above opening, it is pressed and fixed on the tool holder mounting plate by the pressing plate. The pressing plate and the tool holder mounting plate are fixedly connected by bolts.

[0030] The knife holder adopts a detachable installation method. The pressure plate cooperates with the opening of the knife holder mounting plate and is fastened by bolts, making the replacement and maintenance of the knife holder simple and quick. At the same time, it ensures the stability of the knife holder in the working state and avoids the loosening of the knife holder due to vibration and other reasons.

[0031] Technical personnel should note: Although the utility model has been described according to the above specific implementation methods, the concept of the utility model is not limited to this utility model. Any modification using the concept of the utility model will be included in the scope of protection of this patent right.

Claims

1. A film-scratching mechanism, characterized in that: It includes a frame, an electromagnetic drive device fixed on the frame, a connecting plate connected to the output end of the electromagnetic drive device, a knife seat mounting plate connected to the connecting plate, a knife seat fixed on the knife seat mounting plate, and an elastic telescopic knife head fixed on the knife seat.

2. The film-scratching mechanism according to claim 1, characterized in that: The frame comprises a mounting bottom plate, side plates fixed on both sides of the mounting bottom plate, and a top plate fixed on the top of the side plates.

3. The film-scratching mechanism according to claim 2, characterized in that: A buffer pull ring is connected between the connecting plate and the top plate.

4. The film-scratching mechanism according to claim 1, characterized in that: The electromagnetic drive device comprises an electromagnetic sleeve, a coil located in the electromagnetic sleeve, and an output mounting plate connected to the coil, wherein the output mounting plate is connected to the connecting plate.

5. The film-scratching mechanism according to claim 2 or 3, characterized in that: It also includes a guide block and a guide column, wherein the guide column is fixed on the mounting base plate, the guide block is slidably mounted on the guide column through a guide hole on the guide block, one end of the guide block is connected to the connecting plate, and the other end is connected to the tool holder mounting plate.

6. The film-scratching mechanism according to claim 1, characterized in that: It also includes a pressure plate, one side of the tool holder mounting plate is provided with an opening, after the tool holder is installed in the above opening, it is pressed and fixed on the tool holder mounting plate by the pressure plate, and the pressure plate and the tool holder mounting plate are fixedly connected by bolts.

Images