Film cutting structure for cover film machine

Abstract

The utility model provides a film cutting structure for a cover film machine, which relates to the technical field of cover film machines and comprises a film main body, and a film cutting mechanism is arranged on the outer side of the film main body. The film cutting mechanism comprises a fixing plate, two fixing bases, two L-shaped blocks and a controller body are fixedly connected to the front face of the fixing plate, an eccentric cam body is connected to the inner wall of each fixing frame in a clamped mode, and a rotating shaft is fixedly connected to the inner wall of each eccentric cam body. The outer surface of each rotating shaft is rotationally connected with the inner wall of the fixing base and the inner wall of the fixing plate, the outer surface of each rotating shaft is fixedly connected with a gear, the outer surfaces of the two gears are jointly meshed with a toothed belt, and a servo motor is arranged on the outer side of the fixing plate. The power output end of the servo motor is fixedly connected with the end, close to the fixing plate, of one rotating shaft. According to the film cutting structure for the covering film machine, a film body can be driven to automatically move, automatic repeated transmission cutting is conducted on the film body, and the film body is regularly and modularly cut.

Description

Technical Field

[0001] This utility model relates to a film cutting structure for a covering film machine, specifically a film cutting structure for a covering film machine, and belongs to the technical field of covering film machines. Background Technology

[0002] In modern packaging equipment, covering film machines are widely used in product packaging, especially in the food and pharmaceutical industries. Covering film machines typically require a film cutting mechanism to precisely cut the film to ensure packaging quality.

[0003] However, existing film cutting structures generally use cylinders to drive the cutter. The reciprocating motion of the cylinders generally has disadvantages such as low precision, dependence on external power sources, large size, susceptibility to environmental influences, and high maintenance requirements. Moreover, the movement of the cylinders is usually relatively simple, making it difficult to achieve complex and precise trajectory control. Modular cutting is poor, and it requires air source support, which not only increases energy consumption but may also be affected by air source fluctuations. Ultimately, the use of the above-mentioned film cutting structures will not only affect the efficiency of automatic modular cutting of the film body but also affect the stability of the film cutting structure in use.

[0004] Therefore, a film cutting structure for a film covering machine is proposed here. Utility Model Content

[0005] This invention proposes a film cutting structure for a covering film machine to solve the problems of poor efficiency and instability in the existing film cutting structure, which cannot automatically feed and cut the film body and perform automatic modular cutting.

[0006] This utility model is achieved through the following technical solution: a film cutting structure for a covering film machine, comprising a film body, and a film cutting mechanism disposed on the outer side of the film body; the film cutting mechanism includes a fixing plate, on the front side of the fixing plate being fixedly connected to two fixing seats, two L-shaped blocks, and a controller body, respectively; two fixing frames are disposed on the outer side of the film body, each fixing frame having an eccentric cam body engaged on its inner wall, each eccentric cam body having a rotating shaft fixedly connected to its inner wall, and the outer surface of each rotating shaft being rotatably connected to the inner wall of the fixing seat and the inner wall of the fixing plate, respectively. Gears are fixedly connected to the outer surface of the shaft, and a toothed belt meshes with the outer surfaces of two gears. A servo motor is provided on the outer side of the fixed plate. The power output end of the servo motor is fixedly connected to one end of the rotating shaft near the fixed plate. A positioning post is snapped into the inside of each fixed frame. The outer surface of each positioning post is slidably connected to the inside of the L-shaped block. A cutting blade is fixedly connected to the outer surface of each fixed frame. Several identical rotary motors are fixedly connected to the front of the fixed plate. A roller is fixedly connected to the power output end of each rotary motor.

[0007] An L-shaped plate is fixedly connected to the outer surface of the servo motor, and the front of the L-shaped plate is fixedly connected to the back of the fixing plate.

[0008] The inner wall of the fixing plate is threaded with two sets of bolts, and the controller body is electrically connected to the servo motor and the rotary motor respectively through wires.

[0009] Each of the positioning posts has a buffer pad on its outer surface, and the outer surface of each buffer pad is fixedly connected to the outer surface of the L-shaped block.

[0010] Each controller body has a fixed frame fixedly connected to its outer surface, and the back of the fixed frame is fixedly connected to the front of the fixed plate.

[0011] Each bolt is fitted with an anti-slip pad on its outer surface, and the outer surface of each anti-slip pad is in contact with the front of the fixing plate.

[0012] This utility model provides a film cutting structure for a covering film machine, which has the following beneficial effects:

[0013] This film-cutting machine uses a film-cutting structure. The film-cutting mechanism automatically moves the film body and performs repeated automatic transmission cutting, systematically and modularly cutting the film body, thus improving the cutting efficiency of the device. A rotary motor drives a roller to rotate, which in turn moves the film body automatically, facilitating automatic cutting later and enabling automatic feeding of the film body, further improving the cutting efficiency. A servo motor, supported by a fixed plate and base, and driven by a transmission structure consisting of a toothed belt, gears, and a rotating shaft, drives an eccentric cam body in eccentric circular motion. This eccentric circular motion of the eccentric cam body, in turn, causes the fixed frame, positioning column, and cutting blades to slide up and down along the interior of an L-shaped block, allowing the cutting blades to move closer or separate, ultimately cutting the film body. This device enables modular automatic cutting of the film body, thereby improving the device's working efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the servo motor structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the main structure of the controller of this utility model;

[0017] Figure 4 This is a cross-sectional view of the fixing plate structure of this utility model;

[0018] Figure 5This is a schematic diagram of the positioning column structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the fixing frame structure of this utility model.

[0020] Explanation of reference numerals in the attached figures

[0021] 1. Membrane body;

[0022] 2. Film cutting mechanism; 201. Fixing plate; 202. Fixing base; 203. L-shaped block; 204. Positioning column; 205. Fixing frame; 206. Cutting blade; 207. Eccentric cam body; 208. Gear; 209. Rotating shaft; 210. Toothed belt; 211. Controller body; 212. Servo motor; 213. Rotary motor; 214. Roller;

[0023] 3. Anti-slip pads; 4. Bolts; 5. L-shaped plates; 6. Buffer pads; 7. Fixing frames. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0025] Please see Figures 1-6This utility model provides a film cutting structure for a covering film machine, including a film body 1, and a film cutting mechanism 2 disposed on the outer side of the film body 1. The film cutting mechanism 2 includes a fixing plate 201, and two fixing seats 202, two L-shaped blocks 203 and a controller body 211 are fixedly connected to the front side of the fixing plate 201. Two fixing brackets 205 are disposed on the outer side of the film body 1. An eccentric cam body 207 is snapped into the inner wall of each fixing bracket 205. A rotating shaft 209 is fixedly connected to the inner wall of each eccentric cam body 207. The outer surface of each rotating shaft 209 is rotatably connected to the inner wall of the fixing seat 202 and the inner wall of the fixing plate 201, respectively. A gear 208 is fixedly connected, and a toothed belt 210 meshes with the outer surfaces of the two gears 208. A servo motor 212 is provided on the outer side of the fixed plate 201. The power output end of the servo motor 212 is fixedly connected to one end of a rotating shaft 209 near the fixed plate 201. A positioning post 204 is snapped into the inside of each fixed bracket 205. The outer surface of each positioning post 204 is slidably connected to the inside of the L-shaped block 203. A cutting blade 206 is fixedly connected to the outer surface of each fixed bracket 205. Several identical rotary motors 213 are fixedly connected to the front of the fixed plate 201. A roller 214 is fixedly connected to the power output end of each rotary motor 213.

[0026] Please refer to this carefully. Figure 1 and Figure 2 An L-shaped plate 5 is fixedly connected to the outer surface of the servo motor 212. The front of the L-shaped plate 5 is fixedly connected to the back of the fixing plate 201. The L-shaped plate 5 can fix the servo motor 212 and prevent the servo motor 212 from falling off during use.

[0027] Please refer to this carefully. Figure 1 The inner wall of the fixing plate 201 is threaded with two sets of bolts 4. The controller body 211 is electrically connected to the servo motor 212 and the rotary motor 213 respectively through wires. The fixing plate 201 can be fixed by the two sets of bolts 4 to avoid the problem of the fixing plate 201 shaking during use.

[0028] Please refer to this carefully. Figure 1 Each positioning post 204 has a buffer pad 6 on its outer surface. The outer surface of each buffer pad 6 is fixedly connected to the outer surface of the L-shaped block 203. The buffer pad 6 can buffer and protect the fixing frame 205, preventing the fixing frame 205 from easily impacting the L-shaped block 203 during repeated movement, thereby affecting the stability of the L-shaped block 203.

[0029] Please refer to this carefully. Figure 3Each controller body 211 has a fixed frame 7 fixedly connected to its outer surface. The back of the fixed frame 7 is fixedly connected to the front of the fixed plate 201. The fixed frame 7 can fix the controller body 211 and prevent it from shaking during use. The controller consists of two parts: hardware and software. The hardware mainly includes a central processing unit (CPU) for calculation, input / output (I / O) interfaces for connecting sensors and actuators, memory for storing programs and data, as well as power supply and communication modules. The software includes control algorithm programs, real-time operating systems such as RTOS, and human-machine interfaces, all working together to ensure accuracy and efficiency. System control, widely used in industrial automation, smart homes, automotive electronics, and other fields, is a core device that regulates system operation by processing input signals in real time and generating control commands. Its working principle can be summarized as follows: First, it collects signals from sensors or external inputs such as temperature and speed, and compares them with preset target values ​​to calculate the deviation; then, it uses built-in algorithms such as PID control and logical judgment to analyze the deviation and generate adjustment commands; finally, it drives actuators such as motors and valves through the output interface to adjust the system state, while continuously monitoring the effect through closed-loop feedback to achieve dynamic stability. The controller can control the electrical components of this technical solution.

[0030] Please refer to this carefully. Figure 1 Each bolt 4 has an anti-slip pad 3 on its outer surface. The outer surface of each anti-slip pad 3 is in contact with the front of the fixing plate 201. The anti-slip pad 3 can increase the lubrication of the bolt 4 and prevent the bolt 4 from slipping during use.

[0031] In use, the servo motor 212 and rotary motor 213 are connected to a power source. When using the device, the operator connects the fixing plate 201 to the fixed entity using bolts 4. Then, the operator places one end of the film body 1 to be cut onto the surface of the first pair of rollers 214 on the right side of the fixing plate 201 from the right side. The controller 211 then controls the rotary motor 213 to operate, causing the rollers 214 to rotate. The rotation of the rollers 214 then moves the film body 1 automatically along the fixing plate 201 from the right side to the left side. During this process, the operator uses the controller 211 to control the servo motor 212, which drives one of the rotating shafts 209 to rotate. This rotating shaft 209 then drives a gear 208 to rotate. This gear 208, under the transmission of the toothed belt 210, drives another gear 208 to rotate. This other gear 208 then drives another rotating shaft 209 to rotate. The two rotating shafts 209... The rotation drives the two eccentric cam bodies 207 to rotate. Under the support of the fixed seat 202, the two eccentric cam bodies 207 perform eccentric circular motion. The movement of the eccentric cam bodies 207 drives the fixed frame 205 and the positioning column 204 to slide up and down along the inside of the L-shaped block 203. When the fixed frame 205 and the roller 214 move away from each other and reach the highest distance, the controller body 211 controls the servo motor 212 to stop moving and controls the rotary motor 213 to continue rotating. When the left side of the membrane body 1 is perpendicular to the left side of the blade of the roller 214, the operator uses the controller body 211 to control the servo motor 212 to work. The servo motor 212 drives the eccentric structure through the connecting structure to realize the reciprocating cyclic cutting of the membrane body 1. Through this device, the operator realizes automatic reciprocating cutting of the membrane body 1. At the same time, during the cutting process, the rotation frequency of the servo motor 212 can be adjusted according to the cutting needs to adjust the cutting length of the membrane body 1, thereby improving the applicability and effect of the device.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A film cutting structure for a covering film machine, comprising a film body (1), characterized in that: A film cutting mechanism (2) is provided on the outer side of the membrane body (1); the film cutting mechanism (2) includes a fixing plate (201), and two fixing seats (202), two L-shaped blocks (203) and a controller body (211) are fixedly connected to the front side of the fixing plate (201) respectively. Two fixing frames (205) are provided on the outer side of the membrane body (1). An eccentric cam body (207) is snapped into the inner wall of each fixing frame (205). A rotating shaft (209) is fixedly connected to the inner wall of each eccentric cam body (207). The outer surface of each rotating shaft (209) is rotatably connected to the inner wall of the fixing seat (202) and the inner wall of the fixing plate (201) respectively. A gear (208) is fixedly connected to the outer surface of each rotating shaft (209). The outer surfaces of the gears (208) are meshed with a toothed belt (210). A servo motor (212) is provided on the outer side of the fixed plate (201). The power output end of the servo motor (212) is fixedly connected to one end of a rotating shaft (209) near the fixed plate (201). A positioning post (204) is snapped into the inside of each fixed frame (205). The outer surface of each positioning post (204) is slidably connected to the inside of the L-shaped block (203). A cutting blade (206) is fixedly connected to the outer surface of each fixed frame (205). Several identical rotary motors (213) are fixedly connected to the front of the fixed plate (201). A roller (214) is fixedly connected to the power output end of each rotary motor (213).

2. The film cutting structure for a covering film machine according to claim 1, characterized in that: An L-shaped plate (5) is fixedly connected to the outer surface of the servo motor (212), and the front of the L-shaped plate (5) is fixedly connected to the back of the fixing plate (201).

3. The film cutting structure for a covering film machine according to claim 1, characterized in that: The inner wall of the fixing plate (201) is threaded with two sets of bolts (4), and the controller body (211) is electrically connected to the servo motor (212) and the rotary motor (213) respectively through wires.

4. The film cutting structure for a covering film machine according to claim 1, characterized in that: Each of the positioning posts (204) has a buffer pad (6) fitted on its outer surface, and the outer surface of each buffer pad (6) is fixedly connected to the outer surface of the L-shaped block (203).

5. The film cutting structure for a covering film machine according to claim 1, characterized in that: Each controller body (211) has a fixed frame (7) fixedly connected to its outer surface, and the back of the fixed frame (7) is fixedly connected to the front of the fixed plate (201).

6. The film cutting structure for a covering film machine according to claim 3, characterized in that: Each bolt (4) is fitted with an anti-slip pad (3) on its outer surface, and the outer surface of each anti-slip pad (3) is in contact with the front of the fixing plate (201).

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