Film rolling tightness testing device
By designing a film tension testing device, which uses a tension gauge and servo motor to automatically measure the film tension, the problem of inaccurate manual judgment is solved, and accurate and objective evaluation of film winding is achieved.
Patent Information
- Application Number
- CN202422967916.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-03
AI Technical Summary
In existing technologies, the judgment of the tightness of the film roll relies on human experience, which leads to inaccurate and subjective results.
A film roll tension testing device was designed, including an operating table, a testing mechanism, a winding mechanism, and a leveling mechanism. The tension of the film roll is measured by a tension gauge, and the test is automated by using a label and a servo motor.
It enables accurate and objective measurement of the tightness of film winding, solves the problem of inaccurate manual judgment, and improves the reliability and consistency of testing.
Smart Images
Figure CN223624090U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging testing technology, and in particular to a film roll tightness testing device. Background Technology
[0002] Roll film refers to packaging films supplied in rolls. In the packaging materials industry, the tightness test of roll film is particularly important, as it is a crucial indicator of quality. It affects tension control during packaging, packaging effectiveness, and subsequent transportation and storage. During film winding, the tension of the winding machine is typically controlled by the tension of the film. Excessive tension in the winding machine results in a taut roll, which can easily tear the film. Conversely, insufficient tension results in a loose roll, which can easily become slack during transportation and unwinding.
[0003] Currently, after the film is wound, the tightness is usually judged by touch, relying on the experience of the workers. This method has problems such as inaccurate judgment and subjective test results. To address this, a film tension testing device is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a film roll tension testing device, which solves the technical problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a film tension testing device, comprising an operating table, a testing mechanism on the operating table, the testing mechanism including a sliding seat and a label, the top surface of the sliding seat being fixedly connected to the bottom surface of the operating table, a sliding frame being slidably connected to the inner wall of the sliding seat, the sliding frame being L-shaped, a mounting base being fixedly connected to the inner side wall of the sliding frame, a tension gauge being fixedly mounted on the mounting base, a reinforcing rib being fixedly connected to the bottom of the tension gauge, the outer wall of the reinforcing rib away from the tension gauge being fixedly connected to the inner side wall of the sliding frame, and a winding mechanism on the operating table.
[0006] Preferably, the winding mechanism includes a fixed plate and a belt symmetrically arranged on the top surface of the operating table. The inner wall of the fixed plate has a circular hole, and a bearing is fixedly connected to the inner wall of the circular hole. A rotating shaft is rotatably connected to the inner wall of the bearing. A locking key is fixedly connected to the right end of the rotating shaft. Limiting rings are fixedly connected to the side walls of the two fixed plates that are close to each other. A rotating rod is inserted between the two limiting rings. A paper tube is sleeved on the rotating rod. A limiting block is rotatably connected to the outer wall of the right limiting ring.
[0007] Preferably, the left end of the rotating rod is provided with a slot, the right end of the rotating shaft is fixedly connected with a key, the key engages with the slot, the top of the fixed plate is fixedly connected with a servo motor, the output end of the servo motor is fixedly connected with a drive wheel, the left end of the rotating shaft is fixedly connected with a driven wheel, and the driven wheel is connected to the drive wheel via a belt.
[0008] Preferably, a leveling mechanism is provided on the operating table. The leveling mechanism is located in front of the winding mechanism. The leveling mechanism includes two rear fixing blocks and two front fixing blocks. The two rear fixing blocks and the two front fixing blocks are symmetrically connected to the top surface of the operating table. A connecting rod is rotatably connected between the two rear fixing blocks and the two front fixing blocks. A leveling roller is fixedly connected to the outer wall of the connecting rod.
[0009] Preferably, a fixed base is fixedly connected to the bottom surface of the operating table, and a spring is fixedly connected to the left side wall of the fixed base. The end of the spring away from the fixed base is connected to the sliding frame.
[0010] Preferably, a limiting frame is fixedly connected to the top surface of the operating table, the limiting frame is located in front of the leveling mechanism, and a limiting groove is formed on the limiting frame.
[0011] Compared with related technologies, the film roll tension testing device provided by this utility model has the following advantages:
[0012] This invention provides a film roll tightness testing device. During the film winding process, a marked label is placed on the outside of the film, ensuring that the marked part of the label is flush with the edge of the film. After the film is wound up, the film is rotated to keep the label directly above it. Then, a tension gauge is used to hook the label and pull it outward with a constant force. The tightness of the film winding is judged by observing the change in the tension gauge value. The operation is simple and solves the problems of inaccuracy and lack of objectivity in manual judgment. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the structure of the limiting frame of this utility model;
[0015] Figure 3 This is a schematic diagram of the structure of the testing mechanism of this utility model;
[0016] Figure 4 This is a schematic diagram of the disassembled structure of the winding mechanism of this utility model. Figure 1 ;
[0017] Figure 5 This is a schematic diagram of the disassembled structure of the winding mechanism of this utility model. Figure 2 ;
[0018] Figure 6 This is a schematic diagram of the leveling mechanism of this utility model.
[0019] In the diagram: 1. Operating table; 2. Testing mechanism; 201. Sliding frame; 202. Sliding seat; 203. Fixed seat; 204. Spring; 205. Mounting seat; 206. Reinforcing rib; 207. Tensile gauge; 208. Label; 3. Winding mechanism; 301. Fixed plate; 302. Round hole; 303. Bearing; 304. Rotating shaft; 305. Locking key; 306. Rotating rod; 307. Limiting ring; 308. Limiting block; 309. Slot; 310. Servo motor; 311. Driving wheel; 312. Belt; 313. Driven wheel; 4. Paper tube; 5. Limiting frame; 501. Limiting groove; 6. Leveling mechanism; 601. Rear fixing block; 602. Front fixing block; 603. Connecting rod; 604. Leveling roller. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0021] Example:
[0022] Please see Figures 1-6This utility model provides a technical solution: a film roll tension testing device, including an operating table 1, on which a testing mechanism 2 is provided. The testing mechanism 2 includes a sliding seat 202 and a label 208. The top surface of the sliding seat 202 is fixedly connected to the bottom surface of the operating table 1. A sliding frame 201 is slidably connected to the inner wall of the sliding seat 202. The sliding frame 201 is L-shaped. A mounting base 205 is fixedly connected to the inner side wall of the sliding frame 201. A tension gauge 207 is fixedly mounted on the mounting base 205. A reinforcing rib 206 is fixedly connected to the bottom of the tension gauge 207. The outer wall of the reinforcing rib 206 away from the tension gauge 207 is fixedly connected to the inner side wall of the sliding frame 201. A fixed base 203 is fixedly connected to the bottom surface of the operating table 1. A spring 204 is fixedly connected to the left side wall of the fixed base 203. The end of the spring 204 away from the fixed base 203 is connected to the sliding frame 201. During the winding process, the marked label 208 is placed outside the film, and the marked part of the label 208 is flush with the edge of the film. When the tightness test is performed after the film is wound, the previous test value of the tension gauge 207 is reset to zero. Then the film is rotated so that the label 208 is kept directly above it. The tension gauge 207 is hooked onto the label 208, and the label 208 is pulled outward with a constant force. The tightness of the film winding is judged by observing the value of the tension gauge 207.
[0023] A winding mechanism 3 is provided on the operating table 1. The winding mechanism 3 includes a fixed plate 301 and a belt 312 symmetrically arranged on the top surface of the operating table 1. A circular hole 302 is opened on the inner wall of the fixed plate 301. A bearing 303 is fixedly connected to the inner wall of the circular hole 302. A rotating shaft 304 is rotatably connected to the inner wall of the bearing 303. A locking key 305 is fixedly connected to the right end of the rotating shaft 304. Limiting rings 307 are fixedly connected to the side walls of the two fixed plates 301 that are close to each other. A rotating rod 306 is inserted between the two limiting rings 307. A paper tube 4 is sleeved on the rotating rod 306. A limiting block 308 is rotatably connected to the outer wall of the right limiting ring 307. A slot 309 is opened on the left end of the rotating rod 306. A locking key 305 is fixedly connected to the right end of the rotating shaft 304. The locking key 305 and the slot 309 are connected to each other. A servo motor 310 is fixedly connected to the top of the fixed plate 301. The output end of the servo motor 310 is fixedly connected to the drive wheel 311. The left end of the rotating shaft 304 is fixedly connected to the driven wheel 313. The driven wheel 313 is connected to the drive wheel 311 through the belt 312. When winding the film, the limit block 308 is turned open, and then the rotating rod 306 is passed through the right circular hole 302. The paper tube 4 is put on the rotating rod 306, and then the rotating rod 306 is pushed to the left so that the slot 309 at the left end of the rotating rod 306 is engaged with the key 305 at the right end of the rotating shaft 304. When the servo motor 310 is started, the drive wheel 311 drives the driven wheel 313 to rotate through the belt 312, thereby driving the rotating rod 306 to rotate inside the limit ring 307 to wind the film.
[0024] A leveling mechanism 6 is provided on the operating table 1. The leveling mechanism 6 is located in front of the winding mechanism 3. The leveling mechanism 6 includes two rear fixing blocks 601 and two front fixing blocks 602. The two rear fixing blocks 601 and the two front fixing blocks 602 are symmetrically connected to the top surface of the operating table 1. A connecting rod 603 is rotatably connected between the two rear fixing blocks 601 and the two front fixing blocks 602. A leveling roller 604 is fixedly connected to the outer wall of the connecting rod 603. The leveling mechanism 6 can perform leveling work on the film before it is wound up to prevent the film from being wound up too tightly.
[0025] The top surface of the operating table 1 is fixedly connected to the limiting frame 5, which is located in front of the leveling mechanism 6. The limiting frame 5 has a limiting groove 501. When the film is being wound up, it needs to pass through the limiting groove 501 first. The width of the film can be limited by the limiting groove 501, which improves the flatness of the side when the film is being wound up.
[0026] Working principle: The leveling mechanism 6 first levels the film to prevent it from being uneven before winding. When winding the film, the limit block 308 is turned open, then the rotating rod 306 passes through the right circular hole 302, and the paper tube 4 is fitted onto the rotating rod 306. Then, the rotating rod 306 is pushed to the left, so that the slot 309 at the left end of the rotating rod 306 engages with the key 305 at the right end of the rotating shaft 304. When the servo motor 310 is started, the driving wheel 311 drives the driven wheel 313 to rotate through the belt 312, driving the rotating rod. 306 rotates inside the limiting ring 307 to wind up the adhesive film. During the winding process, the marked label 208 is placed on the outside of the adhesive film, ensuring that the marked part of the label 208 is flush with the edge of the adhesive film. When testing the tightness after the adhesive film is wound up, first reset the previous test value of the tension gauge 207 to zero, then rotate the adhesive film to keep the label 208 directly above it, hook the tension gauge 207 onto the label 208, and pull the label 208 outward with a constant force. The tightness of the adhesive film winding is judged by observing the value of the tension gauge 207.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A film roll tension testing device, comprising an operating table (1), characterized in that: The operating table (1) is provided with a testing mechanism (2), which includes a sliding seat (202) and a label (208). The top surface of the sliding seat (202) is fixedly connected to the bottom surface of the operating table (1). A sliding frame (201) is slidably connected to the inner wall of the sliding seat (202). The sliding frame (201) is L-shaped. A mounting base (205) is fixedly connected to the inner side wall of the sliding frame (201). A tension gauge (207) is fixedly installed on the mounting base (205). A reinforcing rib (206) is fixedly connected to the bottom of the tension gauge (207). The outer wall of the reinforcing rib (206) away from the tension gauge (207) is fixedly connected to the inner side wall of the sliding frame (201). The operating table (1) is provided with a winding mechanism (3).
2. The film roll tension testing device according to claim 1, characterized in that: The winding mechanism (3) includes a fixed plate (301) and a belt (312) symmetrically arranged on the top surface of the operating table (1). The inner wall of the fixed plate (301) is provided with a circular hole (302). A bearing (303) is fixedly connected to the inner wall of the circular hole (302). A rotating shaft (304) is rotatably connected to the inner wall of the bearing (303). A key (305) is fixedly connected to the right end of the rotating shaft (304). Limiting rings (307) are fixedly connected to the side walls of the two fixed plates (301) that are close to each other. A rotating rod (306) is inserted between the two limiting rings (307). A paper tube (4) is sleeved on the rotating rod (306). A limiting block (308) is rotatably connected to the outer wall of the right limiting ring (307).
3. The film roll tension testing device according to claim 2, characterized in that: The left end of the rotating rod (306) is provided with a slot (309), and the right end of the rotating shaft (304) is fixedly connected with a key (305). The key (305) engages with the slot (309). The top of the fixed plate (301) is fixedly connected with a servo motor (310). The output end of the servo motor (310) is fixedly connected with a drive wheel (311). The left end of the rotating shaft (304) is fixedly connected with a driven wheel (313). The driven wheel (313) is connected to the drive wheel (311) via a belt (312).
4. The film roll tension testing device according to claim 1, characterized in that: A leveling mechanism (6) is provided on the operating table (1). The leveling mechanism (6) is located in front of the winding mechanism (3). The leveling mechanism (6) includes two rear fixing blocks (601) and two front fixing blocks (602). The two rear fixing blocks (601) and the two front fixing blocks (602) are symmetrically connected to the top surface of the operating table (1). A connecting rod (603) is rotatably connected between the two rear fixing blocks (601) and the two front fixing blocks (602). A leveling roller (604) is fixedly connected to the outer wall of the connecting rod (603).
5. The film roll tension testing device according to claim 1, characterized in that: The bottom surface of the operating table (1) is fixedly connected to a fixed seat (203), and a spring (204) is fixedly connected to the left side wall of the fixed seat (203). The end of the spring (204) away from the fixed seat (203) is connected to the sliding frame (201).
6. The film roll tension testing device according to claim 1, characterized in that: The top surface of the operating table (1) is fixedly connected to a limiting frame (5), which is located in front of the leveling mechanism (6). A limiting groove (501) is provided on the limiting frame (5).