CN211110239U - A film slitting mechanism - Google Patents

Abstract

The utility model discloses a film slitting mechanism. The support is fixedly connected with a roller structure and a slitting structure capable of adjusting the height up and down. The slitting structure is arranged on the upper side of the roller structure. The structure includes a central shaft fixedly connected with the frame, a reference wheel sleeved on both ends of the central shaft and fixedly connected with the central shaft, several rolling wheels arranged between the two reference wheels and movably connected with the central shaft, set A slitting wheel that is movably connected to the central shaft between two adjacent rolling wheels. The pulling movable rod drives the tool holder to move up and down, so as to adjust the height of the tool, and the rotating indexing mechanism can adjust the angle of the tool inclination, so as to adjust the distance between the tool and the film to ensure that the film is completely cut. There is a pressure bar, so that the film is collided by the balls while being slit, so as to ensure that the film will not be offset during slitting due to unbalanced and uncoordinated film delivery.

Description

A film slitting mechanism

technical field

The utility model relates to a film slitting mechanism.

Background technique

In film production, a film slitting machine is a mechanical device that cuts a wide film into multiple narrow films. The commonly used slitting mechanism uses multiple slitting knives set above the film roll to cut the film. Cut films of different widths for use in different fields. Due to the different film materials, thickness and hardness, it is very important to control the distance between the blade and the film in the production and cutting process. The distance and angle between the blade and the film It determines whether the film can be completely cut. However, it is inconvenient to adjust the angle and height of commonly used knives, and when the raw materials are conveyed by the conveying device, the unbalanced and uncoordinated film conveying often occurs, which leads to the film offset phenomenon that occurs during cutting.

Utility model content

In order to overcome the deficiencies of the prior art, the utility model provides a film slitting mechanism.

The technical solution adopted by the utility model to solve the technical problem is as follows: a film slitting mechanism, comprising a frame, the frame is provided with two brackets, the bracket is provided with a hollow tube, and the bracket is fixedly connected with a rolling structure , A slitting structure that can adjust the height up and down, the slitting structure is arranged on the upper side of the rolling structure, and the rolling structure includes a central shaft fixedly connected with the bracket, sleeved on both ends of the central shaft and fixedly connected with the central shaft The reference wheel, several rolling wheels arranged between the two reference wheels and movably connected with the central axis, and a slitting wheel arranged between two adjacent rolling wheels and movably connected with the central axis, the reference wheels are The diameter is larger than the diameter of the rolling wheel, which is larger than the diameter of the slitting wheel.

Preferably, a spring mechanism is arranged in the bracket, and the spring mechanism includes a spring bracket fixedly connected with the bracket, a spring defined in the spring bracket, and a marble is arranged in the spring.

Preferably, the slitting structure includes a tool holder threadedly connected to the bracket, a slitting assembly fixed on the tool holder, and a pressing block mechanism fixed on the tool holder, and the slitting assembly is arranged on the upper side of the slitting wheel , the pressing block mechanism is arranged on the upper side of both ends of the rolling wheel.

Preferably, the tool holder includes a movable rod connected with the bracket and capable of adjusting the height up and down, a support rod connected with the movable rod, and an indexing mechanism connecting the support rod and the movable rod, and the movable rod is provided with a ring around the indexing mechanism. There are a plurality of through holes, the movable rod is further provided with a concave hole, and the indexing mechanism is sleeved on the outer side of the support rod and is threadedly connected with the support rod.

Preferably, the slitting assembly includes a fixing block that is sleeved on the outer side of the support rod and is threadedly connected to the support rod, and a cutter fixed on the lower side of the fixing block, and the pressing block mechanism includes a fixing block that is sleeved outside the support rod and is connected to the support rod. The second fixed block connected by the rod thread, and the pressure rod fixed on the lower side of the second fixed block, and the bottom of the pressure rod is provided with a ball.

Preferably, the slitting assembly and the pressing block mechanism are respectively sleeved on the outer side of the support rod and are respectively connected with the support rod by threads.

Preferably, the indexing mechanism includes an indexing body and a positioning protrusion fixedly connected with the indexing body, the positioning protrusion defines a through hole, and the end of the support rod is fixedly provided with a waist-shaped table, the The indexing body is sleeved on the outer side of the girdle table and is connected with the girdle table by screws.

The beneficial effects of the utility model are: the movable rod can be pulled to drive the tool holder to move up and down, thereby adjusting the height of the tool, and the rotating indexing mechanism can adjust the angle of the tool inclination, thereby adjusting the distance between the tool and the film to ensure that the film is completely Slitting, there is a pressure bar on the side of the cutter, so that the film is resisted by the balls while being slit, so as to ensure that the film will not be unbalanced and uncoordinated during the film conveying process. shift phenomenon.

The utility model has a simple structure and is convenient to use.

Description of drawings

Below in conjunction with accompanying drawing and embodiment, the utility model is further described:

Fig. 1 is the structural representation of the present utility model;

Fig. 2 is the enlarged structural representation of A district among Fig. 1;

Fig. 3 is the enlarged structural representation of B area among Fig. 1;

FIG. 4 is a schematic diagram of the internal structure of a part of the present utility model.

Detailed ways

1 to 4, the utility model is realized as follows: a film slitting mechanism, including a frame, the frame is provided with two brackets 1, the bracket 1 is provided with a hollow tube, and the bracket 1 is fixed A rolling structure 2 and a slitting structure 3 capable of adjusting the height up and down are connected. The slitting structure 3 is arranged on the upper side of the rolling structure 2. The two ends of the central shaft 21 and the reference wheels 22 fixedly connected with the central shaft 21, several rolling wheels 23 arranged between the two reference wheels 22 and movably connected with the central shaft 21, and two adjacent rolling wheels 23 The slitting wheel 24 is movably connected with the central shaft 21 therebetween, the diameter of the reference wheel 22 is larger than the diameter of the rolling wheel 23 , and the diameter of the rolling wheel 23 is larger than the diameter of the slitting wheel 24 . The rolling wheel 23 and the slitting wheel 24 are respectively sleeved on the outside of the central axis 21. During the conveying process, the film generates friction with the rolling wheel 23 to drive the rolling wheel 23 to rotate around the central axis 21. The film to be cut is set. Between the two reference wheels 22, the diameter of the reference wheel 22 is larger than that of the rolling wheel 23, and the film can be confined between the two reference wheels 22 to prevent the film from deviating during the conveying process. A groove is formed between the slitting wheel 24 and the rolling wheels 23 on both sides to facilitate slitting the film.

The bracket 1 is provided with a spring mechanism 11 , and the spring mechanism 11 includes a spring bracket 12 fixedly connected to the bracket 1 , a spring 13 defined in the spring bracket 12 , and a marble 14 is arranged in the spring 13 .

The slitting structure 3 includes a tool holder 31 threadedly connected to the bracket 1, a slitting assembly 32 fixed on the tool holder 31, and a pressing block mechanism 33 fixed on the tool holder 31, the slitting On the upper side of the cutting wheel 24 , the pressing block mechanism 33 is arranged on the upper side of both ends of the rolling wheel 23 .

The tool holder 31 includes a movable rod 311 that is sleeved in the bracket 1 and can be adjusted up and down in height, a support rod 312 hinged to the movable rod 311, and an indexing mechanism 313 that connects the support rod 312 and the movable rod 311. The rod 311 is provided with a plurality of through holes 3111 surrounding the indexing mechanism 313. The indexing mechanism 313 is sleeved on the outside of the support rod 312 and is threadedly connected with the support rod 312. The movable rod 311 is also provided with a vertical linear There are a plurality of concave holes 3112 arranged and corresponding to the marbles 14 . The movable rod 311 is connected with the bracket 1 by screws. When the movable rod 311 is fixed in the bracket 1 by screws, the marbles 14 enter the concave holes 3112 .

Loosen the screw, the gap between the movable rod 311 and the bracket 1 increases, the marble 14 exits the concave hole 3112, and the spring 13 is compressed when the movable rod 311 is moved up and down. When the side of the movable rod 311 close to the spring 13 is flat, the marble 14 is removed Confined in the spring 13, when the spring 13 is close to the concave hole 3112 of the movable rod 311, the spring 13 extends to the side of the movable rod 311 to drive the marble 14 to move to the side of the movable rod 311, so that the marble 14 enters the recessed hole 3112, Each time the marble 14 hits a concave hole 3112, it will make a sound, which means the first gear, so that the adjustment of the height of any gear can be realized. Tighten the screw to fix the movable rod 311 and the bracket 1 , and at the same time, the marble 14 enters the recessed hole 3112 to ensure that the movable rod 311 is limited to the required height position, so as to support the rod 312 and adjust the height of the slitting assembly 32 .

The slitting assembly 32 and the pressing block mechanism 33 are respectively sleeved on the outer side of the support rod 312 and are respectively connected with the support rod 312 by threads. The slitting assembly 32 includes a fixing block 321 sleeved on the outside of the support rod 312 and threadedly connected with the support rod 312, and a cutter 322 fixed on the lower side of the fixing block, and the top of the cutter 322 is located on the cutting wheel 24. A groove is formed between the slitting wheel 24 and the rolling wheels 23 on both sides to facilitate the slitting of the film. The cutter 322 slits the film in the groove to ensure the accuracy of slitting. The pressing block mechanism 33 It includes a second fixing block 331 sleeved on the outside of the support rod 312 and threadedly connected with the support rod 312 , and a pressing rod 332 fixed on the lower side of the second fixing block 331 . The bottom of the pressing rod 332 is provided with a ball 333 . The pressing block mechanism 33 is arranged on the upper side of the two end faces of the rolling wheel 23. When the film is being conveyed, the rolling balls 333 lightly touch the film. The pressing rod 332 is provided with a telescopic length sleeve rod. When adjusting, the length of the pressing rod 332 can be stretched to ensure that the balls 333 can interfere with the film, so as to ensure that the film will not be offset during slitting due to unbalanced and uncoordinated film conveying. The indexing mechanism 313 includes an indexing body 3131 and a positioning protrusion 3132 fixedly connected with the indexing body 3131 , the positioning protrusion 3132 defines a through hole 3111 , and the end of the support rod 312 is fixedly provided with a waist shape. The table 3121, the indexing body 3131 is sleeved on the outside of the waist-shaped table 3121 and is connected with the waist-shaped table 3121 by screws.

Loosen the screw, move the indexing mechanism 313 along the waist-shaped table 3121 to make the positioning protrusion 3132 exit the through hole 3111, then rotate the indexing body 3131 to drive the support rod 312 to rotate to the required angle, and then move the indexing body 3131 along the waist The shape table 3121 moves in the direction of the through hole 3111, so that the positioning convex hole enters the appropriate through hole 3111, and then tighten the screw to make the indexing mechanism 313 and the waist table 3121 fixedly connected to realize the slitting assembly 32 and the pressing block mechanism. 33 Adjustment of the tilt angle.

In the present invention, the tool holder 31 can be moved up and down by pulling the movable rod 311, thereby adjusting the height of the tool 322, and the rotating indexing mechanism 313 can adjust the inclination angle of the tool 322, thereby adjusting the distance between the tool 322 and the film. The distance ensures that the film is completely cut, and the side of the cutter 322 is provided with a pressure bar 332, so that the film is resisted by the balls 333 while being cut, so as to ensure that the film will not be unbalanced and uncoordinated during the film conveying process. Film offset phenomenon that occurs during slitting.

The utility model has a simple structure and is convenient to use.

Claims (7)

1. A film slitting mechanism, comprising a frame, the frame is provided with two supports (1), the support (1) is provided with a hollow tube, and it is characterized in that the support (1) is fixedly connected with a rolling structure (2) A slitting structure (3) capable of adjusting the height up and down, the slitting structure (3) is arranged on the upper side of the rolling structure (2), and the rolling structure (2) includes a fixed connection with the bracket (1) The central shaft (21), the reference wheel (22) sleeved on both ends of the central shaft (21) and fixedly connected with the central shaft (21), arranged between the two reference wheels (22) and connected to the central shaft (22). 21) Several rolling wheels (23) that are movably connected, a slitting wheel (24) that is arranged between two adjacent rolling wheels (23) and is movably connected to the central shaft (21), the reference wheel (22) The diameter of the rolling wheel (23) is larger than that of the rolling wheel (23), and the diameter of the rolling wheel (23) is larger than the diameter of the slitting wheel (24). 2. A film slitting mechanism according to claim 1, characterized in that a spring mechanism (11) is provided in the bracket (1), and the spring mechanism (11) comprises a fixed connection with the bracket (1). A spring bracket (12), a spring (13) defined in the spring bracket (12), and a marble (14) is arranged in the spring (13). 3. A film slitting mechanism according to claim 1, characterized in that the slitting structure (3) comprises a tool holder (31) threadedly connected with the bracket (1), fixed on the tool holder (31) The slitting assembly (32), the pressing block mechanism (33) fixed on the tool holder (31), the slitting assembly (32) is arranged on the upper side of the slitting wheel (24), the pressing block mechanism ( 33) are arranged on the upper sides of both ends of the scroll wheel (23). 4. A film slitting mechanism according to claim 3, characterized in that the tool holder (31) comprises a movable rod (311) which is connected with the bracket (1) and can adjust the height up and down, and the movable rod (311) ) connected support rod (312), the indexing mechanism (313) connecting the support rod (312) and the movable rod (311), the movable rod (311) is provided with a through hole (3111) surrounding the indexing mechanism (313) ), the movable rod (311) is further provided with a concave hole (3112), and the indexing mechanism (313) is sleeved on the outside of the support rod (312) and is threadedly connected with the support rod (312). 5. A film slitting mechanism according to claim 4, characterized in that the slitting assembly (32) comprises a fixing block sleeved on the outside of the support rod (312) and threadedly connected with the support rod (312). (321), a cutter (322) fixed on the lower side of the fixed block, the pressing block mechanism (33) includes a second fixed block (331) sleeved on the outside of the support rod (312) and threadedly connected with the support rod (312) , a pressure rod (332) fixed on the lower side of the second fixed block (331), and a ball (333) is arranged at the bottom of the pressure rod (332). 6. A film slitting mechanism according to claim 4, characterized in that the slitting assembly (32) and the pressing block mechanism (33) are respectively sleeved on the outside of the support rod (312) and are respectively connected with the support rod (312) Threaded connection. 7. A film slitting mechanism according to claim 4, characterized in that the indexing mechanism (313) comprises an indexing body (3131) and a positioning protrusion (3132) fixedly connected with the indexing body (3131). ), the positioning protrusion (3132) defines the through hole (3111), the end of the support rod (312) is fixed with a waist-shaped table (3121), and the indexing body (3131) is connected to the sleeve The outer side of the girdle table (3121) is screwed with the girdle table (3121) by screws.

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