Cut-off device for co-extrusion film production

Abstract

The utility model discloses a co-extrusion film production cut-off device, and relates to the technical field of co-extrusion film production equipment, the co-extrusion film production cut-off device comprises a bottom plate, the upper end of the bottom plate is fixedly provided with a mounting rack, the inner side of the mounting rack is symmetrically provided with clamping mechanisms, and the upper end of the mounting rack is fixedly provided with a second electric push rod. By the adoption of the structure, the knife body is directly inserted into the limiting inserting groove in the front face of the knife rest, in the inserting process, the clamping block extending out of the inserting groove makes contact with the knife body, and the inclined face of the clamping block is squeezed in a sliding mode, so that the pulling plate connected with the clamping block compresses the second spring in the assembling groove in a sliding mode; the second spring resets to push the clamping block connected with the pulling plate to be clamped into the clamping groove in the upper end of the cutter body so that the cutter body can be fixed, only the pulling plate needs to be pulled when the cutter body is disassembled, the clamping block connected with the pulling plate is separated from the clamping groove of the cutter body, and therefore the cutter body can be conveniently and rapidly disassembled and replaced.

Description

Technical Field

[0001] The utility model belongs to the technical field of co-extrusion film production equipment, in particular to a co-extrusion film production cutting device. Background Art

[0002] In the film processing, one raw material is extruded onto another already made film or different types of films are bonded together to form a multi-layer film. This product is called a composite film. Compared with the composite film, the co-extruded film has most of the characteristics of the composite film, but all the layers of the co-extruded film are extruded at the same time, so there will be no other non-plastic materials such as aluminum foil and paper. The combination of product materials is relatively small and the scope of application is also small. However, since the layers are hot-melt bonded without adhesives, the hygienic safety of the co-extruded film for food packaging is relatively reliable. In the production process of co-extruded film, a cutting device is often required to cut it.

[0003] A Chinese patent with publication number CN218110895U discloses a cutting device for co-extrusion film production, including a frame, wherein electric push rods are respectively provided at the upper and lower ends of the frame, the output end of the electric push rod extends into the interior of the frame, a moving block is provided at the output end of the electric push rod, a sliding assembly is provided on the side wall of the moving block, a connecting mechanism is provided at one end of the moving block, a cutter is provided at one end of the moving block through the connecting mechanism, a support leg is provided on the outer side of the lower end of the frame, a support plate is provided at the lower end of the support leg, a bolt is rotatably connected to the outer side of the upper end of the support plate, and the lower end of the bolt passes through the support plate.

[0004] The co-extrusion film production cutting device in the above-mentioned prior art still has some shortcomings in actual use and operation. First, when the cutting tool is disassembled, it is only necessary to control the positioning component through the control component so that the positioning component no longer fixes the position of the connecting block, so that the connecting block of the tool can be separated from the connecting groove and removed, which is very inconvenient. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a co-extrusion film production cut-off device to solve the problems mentioned in the background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A co-extrusion film production and cutting device comprises a bottom plate, a mounting frame is fixedly mounted on the upper end of the bottom plate, a clamping mechanism is symmetrically arranged on the inner side of the mounting frame, a second electric push rod is fixedly mounted on the upper end of the mounting frame, an output end of the second electric push rod extends into the inner side of the mounting frame and a second shifting plate is fixedly mounted, a knife holder is arranged on the lower end of the second shifting plate, a slot is arranged on the front side of the knife holder, a knife body is inserted into the inner side of the slot, a fixing mechanism is arranged on the inner side of the knife holder, and the knife holder is clamped with the upper end of the knife body through the fixing mechanism;

[0008] The fixing mechanism comprises an assembly groove, the assembly groove is arranged on the front side of the tool holder, a sliding column is symmetrically fixedly installed on the inner side of the assembly groove, the outer side of the sliding column is slidably connected with the same pull plate, the outer side of the sliding column is sleeved with a second spring, a clamping block is fixedly connected on the side of the pull plate away from the second spring, the clamping end of the clamping block penetrates the wall of the assembly groove and is clamped with the upper end of the tool body, and the tool body can be quickly installed conveniently through the fixing mechanism;

[0009] The clamping mechanism includes a first electric push rod, which is symmetrically fixedly connected to the upper end of the mounting frame, and the output end of the first electric push rod extends into the inner side of the mounting frame and is fixedly installed with the same first moving plate, the first moving plate is slidably connected to the inner side of the mounting frame, and the inner side of the first moving plate is symmetrically slidably connected with a guide column, the upper end of the guide column is fixedly connected to a limiting block, the end of the guide column away from the limiting block is fixedly connected to the same clamping block, the end of the guide column close to the clamping block is sleeved with a first spring, the side of the clamping block away from the first spring is provided with a clamping groove, and a clamping roller is fixedly installed on the inner side of the mounting frame, and the clamping groove of the clamping block is arranged just above the clamping roller. Through the clamping mechanism, the co-extruded film can be conveniently clamped when cutting.

[0010] As a preferred technical solution, a card slot is provided at the upper end of the blade body, and the card-in end of the card block is card-engaged with the card slot. Through the card slot on the blade body, the card block can be conveniently carded and fixed to the blade body in the slot.

[0011] As a preferred technical solution, limiting grooves are symmetrically provided on the inner side of the assembly groove, and the end of the pull plate is slidably connected to the inner side of the limiting groove. The pull plate can be easily operated through the limiting groove on the assembly groove.

[0012] As an optimal technical solution, the lower end of the second movable plate is fixedly connected to a bracket, the inner side of the bracket is rotatably connected to a screw rod, a driving motor is fixedly installed on the front side of the bracket, one end of the screw rod penetrates the bracket wall and the output end of the driving motor and is fixedly installed, a sliding rod is symmetrically fixedly installed on the inner side of the bracket, the tool holder is threadedly connected to the outer side of the screw rod, and the tool holder is slidably connected to the inner side of the bracket, and the screw rod is driven to rotate in the bracket by the output end of the driving motor, so that the tool holder outside the screw rod can slide at the bracket, which can facilitate the tool body under the tool holder to cut the co-extruded film.

[0013] As a preferred technical solution, a screw sleeve is fixedly installed on the inner side of the tool holder, and the tool holder is threadedly connected to the outer side of the screw rod through the screw sleeve. A second sliding hole is opened on the inner side of the tool holder, and the tool holder is slidingly connected to the outer side of the slide rod through the second sliding hole. The tool holder with the screw sleeve is threadedly connected to the screw rod, so that the tool holder can slide on the slide rod.

[0014] As a preferred technical solution, a second shift groove is symmetrically opened on the inner side of the mounting frame, and the end of the second shift plate is slidably connected to the inner side of the second shift groove. The second shift plate can slide conveniently on the inner side of the mounting frame through the second shift groove on the mounting frame.

[0015] As a preferred technical solution, a first shift groove is symmetrically opened on the inner side of the mounting frame, the end of the first shift plate is slidably connected to the inner side of the first shift groove, a first sliding hole is opened on the inner side of the first shift plate, and the ends of the guide columns slide through the first sliding hole. Through the first shift groove on the mounting frame, the first shift plate can be easily slid on the mounting frame.

[0016] In summary, the utility model mainly has the following beneficial effects:

[0017] First, the knife body is directly inserted into the limiting slot on the front side of the knife holder. During the insertion process, the card block extending from the slot contacts the knife body, and the inclined surface of the card block is slid and squeezed, so that the pull plate connected to the card block slides at the assembly slot to compress the second spring. When the upper end of the knife body is inserted into the slot, the second spring resets and pushes the card block connected to the pull plate to be inserted into the card slot at the upper end of the knife body to be fixed. When disassembling the knife body, it is only necessary to pull the pull plate to separate the card block connected to the pull plate from the knife body card slot, so that the knife body can be quickly disassembled and replaced.

[0018] Second, the output ends of the first electric push rods on both sides of the mounting frame are used to push the first shift plate to slide, and the first shift plate is connected to the clamping block with the clamping groove through the guide column with the limit block, and the first spring is added outside the guide column between the clamping block and the first shift plate, so that after the first shift plate moves down, the clamping block and the clamping roller can cooperate to clamp the co-extruded film, thereby facilitating the cutting operation of the co-extruded film. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the clamping groove structure of the utility model;

[0021] Figure 3 The utility model Figure 1 Enlarged view of point A in the middle;

[0022] Figure 4 This is a schematic diagram of the connection between the tool holder and the tool body of the utility model;

[0023] Figure 5 The utility model Figure 4 Enlarged view of point B in the middle.

[0024] 1. Base plate; 2. Mounting frame; 3. Clamping mechanism; 301. First electric push rod; 302. Limiting block; 303. Guide column; 304. First shift plate; 305. First spring; 306. Clamping block; 307. Clamping roller; 308. Clamping groove; 4. First sliding hole; 5. First shifting groove; 6. Second shifting plate; 7. Second shifting groove; 8. Bracket; 9. Screw rod; 10. Sliding rod; 11. Driving motor; 12. Tool holder; 13. Second sliding hole; 14. Screw sleeve; 15. Tool body; 16. Slot; 17. Slotting slot; 18. Fixing mechanism; 181. Assembly groove; 182. Sliding column; 183. Second spring; 184. Pull plate; 185. Clamping block; 19. Limiting groove; 20. Second electric push rod. DETAILED DESCRIPTION

[0025] refer to Figures 1 to 5 The co-extrusion film production and cutting device described in this embodiment includes a bottom plate 1, a mounting frame 2 is fixedly installed on the upper end of the bottom plate 1, a clamping mechanism 3 is symmetrically arranged on the inner side of the mounting frame 2, a second electric push rod 20 is fixedly installed on the upper end of the mounting frame 2, the output end of the second electric push rod 20 extends into the inner side of the mounting frame 2 and a second shift plate 6 is fixedly installed, a tool holder 12 is arranged at the lower end of the second shift plate 6, a slot 17 is opened on the front side of the tool holder 12, a tool body 15 is inserted into the inner side of the slot 17, a fixing mechanism 18 is arranged on the inner side of the tool holder 12, and the tool holder 12 is clamped with the upper end of the tool body 15 through the fixing mechanism 18; a control module is also arranged on the back side of the mounting frame 2, which can facilitate the electrical control of the drive motor 11, the first electric push rod 301 and the second electric push rod 20;

[0026] The fixing mechanism 18 includes an assembly groove 181, which is provided on the front side of the tool holder 12. A slide post 182 is symmetrically fixedly installed on the inner side of the assembly groove 181. The outer side of the slide post 182 is slidably connected with the same pull plate 184. The outer side of the slide post 182 is sleeved with a second spring 183. The pull plate 184 is fixedly connected with a clamping block 185 on the side away from the second spring 183. The clamping end of the clamping block 185 penetrates the groove wall of the assembly groove 181 and is clamped with the upper end of the knife body 15. When the knife body 15 is fixed, the knife body 15 is directly inserted into the limiting slot 17 on the front side of the knife holder 12. During the insertion process, the clamping block 185 extending from the slot 17 contacts the knife body 15, and the clamping block 185 is inclined. The surface is subjected to sliding extrusion, so that the pull plate 184 connected to the card block 185 slides and compresses the second spring 183 at the assembly groove 181. When the upper end of the blade body 15 is inserted into the slot 17, the second spring 183 is reset to push the card block 185 connected to the pull plate 184 to be inserted into the card groove 16 at the upper end of the blade body 15 to be fixed. When disassembling the blade body 15, it is only necessary to pull the pull plate 184 to separate the card block 185 connected to the pull plate 184 from the card groove 16 of the blade body 15, so that the blade body 15 can be quickly disassembled and replaced; the shape of the pull plate 184 is convex, and the convex part of the pull plate 184 extends out of the assembly groove 181, so when disassembling, it is only necessary to operate the convex part of the pull plate 184;

[0027] The clamping mechanism 3 includes a first electric push rod 301, which is symmetrically fixedly connected to the upper end of the mounting frame 2. The output end of the first electric push rod 301 extends into the inner side of the mounting frame 2 and is fixedly installed with the same first shift plate 304. The first shift plate 304 is slidably connected to the inner side of the mounting frame 2. The inner side of the first shift plate 304 is symmetrically slidably connected with a guide column 303. The upper end of the guide column 303 is fixedly connected to a limit block 302. The end of the guide column 303 away from the limit block 302 is fixedly connected to the same clamping block 306. The end of the guide column 303 close to the clamping block 306 is sleeved with a first spring 305. The side of the clamping block 306 away from the first spring 305 is provided with a clamping groove 308. A clamping roller 307 is fixedly installed on the inner side of the mounting frame 2. The clamping block 306 The clamping groove 308 is arranged just above the clamping roller 307. When the co-extruded film is cut off, the output ends of the first electric push rods 301 on both sides of the mounting frame 2 are used to push the first shift plate 304 to slide, and the first shift plate 304 is connected to the clamping block 306 with the clamping groove 308 through the guide column 303 with the limit block 302, and the first spring 305 is added outside the guide column 303 between the clamping block 306 and the first shift plate 304, so that after the first shift plate 304 moves downward, the clamping block 306 and the clamping roller 307 can cooperate to clamp the co-extruded film, thereby facilitating the cutting operation of the co-extruded film; a rubber layer is also provided on the outer side of the clamping groove 308 and the clamping roller 307, and the rubber layer can increase friction to ensure the stability of the clamping block 306 and the clamping rod in clamping the co-extruded film.

[0028] refer to Figure 4 and Figure 5 A card slot 16 is provided at the upper end of the knife body 15, and the card-in end of the card block 185 is card-engaged with the card slot 16. A limiting slot 19 is symmetrically provided on the inner side of the assembly slot 181, and the end of the pull plate 184 is slidably connected to the inner side of the limiting slot 19. The card slot 16 on the knife body 15 can be conveniently card-engaged and fixed with the card block 185, and the limiting slot 19 in the assembly slot 181 can facilitate the limit of the pull plate 184 when operating the pull plate 184, which is convenient for disassembly of the knife body 15; a rectangular hole is also provided between the assembly slot 181 and the slot 17, which can facilitate the card-in end of the card block 185 to extend into the slot 17 to card and fix the knife body 15.

[0029] refer to Figure 3 The lower end of the second shift plate 6 is fixedly connected to a bracket 8, and a screw rod 9 is rotatably connected to the inner side of the bracket 8. A driving motor 11 is fixedly installed on the front side of the bracket 8. One end of the screw rod 9 passes through the bracket wall of the bracket 8 and the output end of the driving motor 11 and is fixedly installed. A sliding rod 10 is symmetrically fixedly installed on the inner side of the bracket 8. A tool holder 12 is threadedly connected to the outer side of the screw rod 9. The tool holder 12 is slidably connected to the inner side of the bracket 8. The output end of the driving motor 11 is used to drive the screw rod 9 to rotate at the bracket 8, so that the tool holder 12 threadedly connected to the outer side of the screw rod 9 slides, and the tool holder 12 is moved from one side of the bracket 8 to the other side through the tool body 15, so that the co-extruded film can be quickly cut off; the shape of the tool holder 12 is convex, which can facilitate the installation of the tool body 15 at the lower end of the tool holder 12 through the fixing mechanism 18.

[0030] refer to Figure 4 A screw sleeve 14 is fixedly installed on the inner side of the tool holder 12, and the tool holder 12 is threadedly connected to the outer side of the screw rod 9 through the screw sleeve 14. A second sliding hole 13 is opened on the inner side of the tool holder 12, and the tool holder 12 is slidably connected to the outer side of the slide rod 10 through the second sliding hole 13. The tool holder 12 with the screw sleeve 14 and the screw rod 9 are threadedly connected, so that the tool holder 12 slides on the slide rod 10 through the second sliding hole 13, which can facilitate the tool body 15 on the tool holder 12 to cut the co-extruded film once; an assembly hole is also provided in the middle of the tool holder 12, and the screw sleeve 14 is installed in the assembly hole in the middle of the tool holder 12.

[0031] refer to Figure 1 A second shift groove 7 is symmetrically provided on the inner side of the mounting frame 2, and the end of the second shift plate 6 is slidably connected to the inner side of the second shift groove 7. By sliding the second shift plate 6 at the second shift groove 7 on the inner side of the mounting frame 2, the stability of the second shift plate 6 can be improved; a second shift block that can slide in the second shift groove 7 is also provided on the outer side of the second shift plate 6, and the second shift block slides in the second shift groove 7.

[0032] refer to Figure 1A first shift groove 5 is symmetrically provided on the inner side of the mounting frame 2, and an end of the first shift plate 304 is slidably connected to the inner side of the first shift groove 5. A first sliding hole 4 is provided on the inner side of the first shift plate 304, and the ends of the guide pillars 303 all slide through the first sliding hole 4. By using the first shift plate 304 to slide in the first shift groove 5 on the inner side of the mounting frame 2, the stability of the first shift plate 304 can be improved, and one end of the guide pillar 303 slides through the first sliding hole 4 of the first shift plate 304, which can facilitate the guide pillar 303 to slide on the first shift plate 304; the first shift plate 304 is also provided with a first shift block that can slide in the first shift groove 5, and the first shift block is slidably connected to the first shift groove 5.

[0033] Principle and advantages of use: During use, when the co-extruded film is cut off, the output ends of the first electric push rods 301 on both sides of the mounting frame 2 are used to push the first moving plate 304 to slide, and the first moving plate 304 is connected to the clamping block 306 with the clamping groove 308 through the guide column 303 with the limit block 302, and the first spring 305 is added outside the guide column 303 between the clamping block 306 and the first moving plate 304, so that after the first moving plate 304 moves down, the clamping block 306 and the clamping roller 307 can cooperate to clamp the co-extruded film, and then the second electric push rod 20 pushes the second moving plate 6 to slide on the inner side of the mounting frame 2 until the specified cut-off point, and then the output end of the driving motor 11 is used to drive the screw rod 9 to rotate at the bracket 8, so that the tool holder 12 threadedly connected to the outer side of the screw rod 9 slides, and the tool holder 12 moves from one side of the bracket 8 to the other side through the tool body 15, so that the co-extruded film can be quickly cut off;

[0034] When fixing the knife body 15, the knife body 15 is directly inserted into the limiting slot 17 on the front side of the knife holder 12. During the insertion process, the block 185 extending from the slot 17 contacts the knife body 15, and the inclined surface of the block 185 is squeezed by sliding, so that the pull plate 184 connected to the block 185 slides and compresses the second spring 183 at the assembly groove 181. When the upper end of the knife body 15 is inserted into the slot 17, the second spring 183 resets and pushes the block 185 connected to the pull plate 184 to be inserted into the slot 16 at the upper end of the knife body 15 to fix it. When disassembling the knife body 15, you only need to pull the pull plate 184 to separate the block 185 connected to the pull plate 184 from the slot 16 of the knife body 15.

Claims

1. A co-extrusion film production cut-off device, comprising a bottom plate (1), characterized in that: A mounting frame (2) is fixedly mounted on the upper end of the base plate (1), a clamping mechanism (3) is symmetrically arranged on the inner side of the mounting frame (2), a second electric push rod (20) is fixedly mounted on the upper end of the mounting frame (2), an output end of the second electric push rod (20) extends into the inner side of the mounting frame (2) and a second shift plate (6) is fixedly mounted thereon, a tool holder (12) is arranged on the lower end of the second shift plate (6), a slot (17) is provided on the front side of the tool holder (12), a tool body (15) is inserted into the inner side of the slot (17), a fixing mechanism (18) is arranged on the inner side of the tool holder (12), and the tool holder (12) is clamped with the upper end of the tool body (15) via the fixing mechanism (18); The fixing mechanism (18) comprises an assembly groove (181), wherein the assembly groove (181) is provided on the front side of the tool holder (12), a sliding column (182) is symmetrically fixedly installed on the inner side of the assembly groove (181), a same pulling plate (184) is slidably connected to the outer side of the sliding column (182), a second spring (183) is sleeved on the outer side of the sliding column (182), a clamping block (185) is fixedly connected to the side of the pulling plate (184) away from the second spring (183), and the clamping end of the clamping block (185) penetrates the groove wall of the assembly groove (181) and is clamped to the upper end of the tool body (15); The clamping mechanism (3) comprises a first electric push rod (301), the first electric push rod (301) is symmetrically fixedly connected to the upper end of the mounting frame (2), the output end of the first electric push rod (301) extends into the inner side of the mounting frame (2) and is fixedly installed with the same first shift plate (304), the first shift plate (304) is slidably connected to the inner side of the mounting frame (2), the inner side of the first shift plate (304) is symmetrically slidably connected to a guide column (303), and the upper end of the guide column (303) is fixedly connected to a limited The guide column (303) is fixedly connected to a clamping block (306) at one end away from the limit block (302); a first spring (305) is sleeved on one end of the guide column (303) close to the clamping block (306); a clamping groove (308) is provided on a side of the clamping block (306) away from the first spring (305); a clamping roller (307) is fixedly installed on the inner side of the mounting frame (2); and the clamping groove (308) of the clamping block (306) is arranged directly above the clamping roller (307).

2. A co-extrusion film production cut-off device according to claim 1, characterized in that: A clamping groove (16) is provided at the upper end of the blade body (15), and the clamping end of the clamping block (185) is clamped in the clamping groove (16).

3. A co-extrusion film production and cutting device according to claim 1, characterized in that: A limiting groove (19) is symmetrically provided on the inner side of the assembly groove (181), and the end of the pull plate (184) is slidably connected to the inner side of the limiting groove (19).

4. A co-extrusion film production and cutting device according to claim 1, characterized in that: The lower end of the second shift plate (6) is fixedly connected to a bracket (8), the inner side of the bracket (8) is rotatably connected to a screw rod (9), a driving motor (11) is fixedly installed on the front side of the bracket (8), one end of the screw rod (9) passes through the bracket wall of the bracket (8) and the output end of the driving motor (11) and is fixedly installed, a sliding rod (10) is symmetrically fixedly installed on the inner side of the bracket (8), the tool holder (12) is threadedly connected to the outer side of the screw rod (9), and the tool holder (12) is slidably connected to the inner side of the bracket (8).

5. A co-extrusion film production and cutting device according to claim 4, characterized in that: A screw sleeve (14) is fixedly installed on the inner side of the tool holder (12), and the tool holder (12) is threadedly connected to the outer side of the screw rod (9) through the screw sleeve (14). A second sliding hole (13) is opened on the inner side of the tool holder (12), and the tool holder (12) is slidably connected to the outer side of the sliding rod (10) through the second sliding hole (13).

6. A co-extrusion film production and cutting device according to claim 1, characterized in that: A second shifting groove (7) is symmetrically provided on the inner side of the mounting frame (2), and the end of the second shifting plate (6) is slidably connected to the inner side of the second shifting groove (7).

7. A co-extrusion film production and cutting device according to claim 1, characterized in that: A first shifting groove (5) is symmetrically provided on the inner side of the mounting frame (2), the end of the first shifting plate (304) is slidably connected to the inner side of the first shifting groove (5), a first sliding hole (4) is provided on the inner side of the first shifting plate (304), and the ends of the guide pillars (303) both slide through the first sliding hole (4).

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