Intelligent film winding tension adjusting mechanism of a co-extrusion film blowing machine

Abstract

The utility model relates to an intelligent film winding tension adjusting mechanism of co -extrusion blown film machine belongs to co -extrusion blown film machine technical field. The intelligent film winding tension adjusting mechanism of co -extrusion blown film machine, include: winding machine and tension sensor, anti -unscrewing mechanism, the anti -unscrewing mechanism includes the mounting block fixed connection in winding machine both sides, the top fixed connection of mounting block has the rubber block, the top fixed connection of rubber block has the damping block and rubber column, the top of damping block and rubber column all resist the bottom of tension sensor, the top fixed connection of rubber column has screw rod, through the mutual cooperation of rubber block, damping block and rubber column, are used for neutralizing the vibration force that dispersed on the transmission to tension sensor, and then avoided the internal part of tension sensor to produce the loosening, ensured the accurate detection of tension sensor to the film tension, thereby ensured the adjusting effect of film winding tension.

Description

Technical Field

[0001] This utility model relates to the field of co-extrusion blown film machine technology, and in particular to an intelligent film winding tension adjustment mechanism for a co-extrusion blown film machine. Background Technology

[0002] A co-extrusion blown film machine is an industrial device that simultaneously extrudes multiple plastic raw materials and combines them into single-layer or multi-layer films. It typically consists of an extrusion mechanism, a die head, a cooling mechanism, a traction mechanism, and a winding mechanism.

[0003] To ensure a uniform tension distribution during film winding, existing co-extrusion blown film machines are typically equipped with an intelligent film winding tension adjustment mechanism. This mechanism uses a tension sensor on the surface of the traction roller, which is in direct contact with the film to monitor the tension of the film during traction. The data is then transmitted to the control device, which adjusts the speed or torque of the traction roller based on the measurement results to regulate the tension during film winding.

[0004] However, the vibration force generated during the rotation of the traction roller can easily be transmitted to the tension sensor, which can cause the internal parts of the tension sensor to loosen, thereby affecting the accuracy of film tension detection and thus affecting the adjustment effect of film winding tension. Utility Model Content

[0005] Therefore, it is necessary to provide an intelligent film winding tension adjustment mechanism for a co-extrusion blown film machine to address the problem that the vibration force generated during the rotation of the traction roller can be easily transmitted to the tension sensor, which can easily lead to loosening of the internal parts of the tension sensor.

[0006] Includes: a winding machine and a tension sensor; an anti-loosening mechanism, the anti-loosening mechanism including mounting blocks fixedly connected to both sides of the winding machine, a rubber block fixedly connected to the top of the mounting block, a damping block and a rubber column fixedly connected to the top of the rubber block, the tops of the damping block and the rubber column both abutting against the bottom of the tension sensor, a screw fixedly connected to the top of the rubber column, and a nut threaded onto the surface of the screw.

[0007] In one embodiment, the inner wall of the screw is slidably connected to a pressure block and a limiting block, and the surface of the limiting block is slidably connected to the inner wall of the pressure block.

[0008] In one embodiment, magnetic blocks are fixedly connected to both sides of the limiting block, the screw is a pure iron component, and the surface of the magnetic blocks is magnetically attracted to the inner wall of the screw.

[0009] In one embodiment, a spring is fixedly connected to one side of the pressure block, and the other end of the spring is fixedly connected to the inner wall of the screw.

[0010] In one embodiment, two push rods are fixedly connected to the surface of the nut, with one end of each push rod bent into an arc shape. The push rods facilitate rotation of the nut, eliminating the need for additional tools such as wrenches. The tension sensor is fixed to a rubber post, simplifying operation and saving time and effort.

[0011] In one embodiment, the surface of the damping block is "X" shaped.

[0012] In one embodiment, a limiting groove is formed on the inner wall of the screw, and the surface of the magnetic block is slidably connected to the inner wall of the limiting groove.

[0013] In one embodiment, a movable rope is fixedly connected to one side of the pressure block, and the other end of the movable rope passes through and extends out of the inner wall of the screw.

[0014] Beneficial effects 1. The rubber blocks, damping blocks, and rubber columns work together to neutralize and disperse the vibration force transmitted to the tension sensor, thereby preventing the internal parts of the tension sensor from becoming loose and ensuring the accurate detection of the film tension by the tension sensor, thus ensuring the adjustment effect of the film winding tension. 2. The screw and nut work together to initially fix the tension sensor on the rubber column. The pressure block, limit block and magnetic block work together to lock the nut, thus ensuring that the bottom of the nut is stably in contact with the top of the rubber column and is stably installed on the screw surface. This improves the stability of the tension sensor on the rubber column, thereby ensuring the vibration reduction effect of the rubber column, damping block and rubber block on the tension sensor. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the anti-loosening mechanism of this utility model; Figure 3 This is a schematic diagram of the mounting block and nut structure of this utility model; Figure 4 This utility model Figure 3 Enlarged view of point A in the middle; Figure 5 This utility model Figure 3 Enlarged view of point B in the middle.

[0017] Figure label: 100. Winding machine; 200. Tension sensor; 300. Anti-loosening mechanism; 301. Mounting block; 302. Rubber block; 303. Damping block; 304. Rubber column; 305. Screw; 306. Nut; 307. Push rod; 308. Pressure block; 309. Limiting block; 310. Magnetic block; 311. Spring; 312. Movable rope; 313. Limiting groove. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] The following is combined with Figures 1-5 This invention describes an intelligent film winding tension adjustment mechanism for a co-extrusion blown film machine.

[0020] In one embodiment, an intelligent film winding tension adjustment mechanism for a co-extrusion blown film machine includes: a winding machine 100 and a tension sensor 200; an anti-loosening mechanism 300, the anti-loosening mechanism 300 including mounting blocks 301 fixedly connected to both sides of the winding machine 100, a rubber block 302 fixedly connected to the top of the mounting block 301, a damping block 303 and a rubber column 304 fixedly connected to the top of the rubber block 302, the tops of the damping block 303 and the rubber column 304 both abutting against the bottom of the tension sensor 200, a screw 305 fixedly connected to the top of the rubber column 304, a nut 306 threadedly connected to the surface of the screw 305, and the surface of the damping block 303 being "X" shaped.

[0021] It should be noted that the co-extrusion blown film machine model SJ-90 / 1200~3L can be selected. These are devices with relatively mature existing technology. The specific model can be selected according to actual needs.

[0022] In this embodiment, when tension adjustment of the film during winding is required, the film is conveyed to the winding mandrel via the traction roller. The winding mandrel is directly driven to rotate by a motor, winding the film layer by layer onto the mandrel. The tension sensor 200 directly contacts the film and monitors the tension of the film in real time, transmitting the signal to the PLC controller. The PLC controller compares the received tension signal with a preset tension value. If the tension is too high, the controller will reduce the speed of the traction roller or reduce the torque of the winding motor; if the tension is too low, the opposite operation will be performed.

[0023] The vibration force generated by the rotation of each roller on the winding machine 100 is transmitted to the outer shell of the winding machine 100. The vibration force on the outer shell of the winding machine 100 is transmitted to the mounting block 301. The vibration force on the mounting block 301 is transmitted to the rubber block 302, the damping block 303 and the rubber column 304. Since rubber is a viscoelastic material, when the rubber block 302, the damping block 303 and the rubber column 304 are subjected to vibration force, the rubber molecules will undergo relative motion and internal friction. This internal friction will convert the mechanical energy of the vibration into heat energy and dissipate it, thereby neutralizing and dispersing the vibration force on the tension sensor 200, ensuring that the tension sensor 200 accurately monitors the tension of the film.

[0024] like Figure 4-5 As shown, a pressure block 308 and a limiting block 309 are slidably connected to the inner wall of the screw 305. The surface of the limiting block 309 is slidably connected to the inner wall of the pressure block 308. Magnetic blocks 310 are fixedly connected to both sides of the limiting block 309. The screw 305 is a pure iron component. The surface of the magnetic block 310 is magnetically attracted to the inner wall of the screw 305. A spring 311 is fixedly connected to one side of the pressure block 308. The other end of the spring 311 is fixedly connected to the inner wall of the screw 305. Two push rods 307 are fixedly connected to the surface of the nut 306. One end of the push rod 307 is bent into an arc shape. A limiting groove 313 is opened in the inner wall of the screw 305. The surface of the magnetic block 310 is slidably connected to the inner wall of the limiting groove 313.

[0025] In this embodiment, the tension sensor 200 is sleeved on the surface of the screw 305, with the bottom of the tension sensor 200 abutting against the top of the rubber column 304. At this time, the pressure block 308 is pushed to fully retract into the screw 305. The nut 306 is sleeved on the surface of the screw 305 and rotated through the push rod 307, so that the bottom end of the nut 306 abuts against the top of the rubber column 304. The elastic force of the spring 311 pushes the pressure block 308 to move laterally within the screw 305, so that the bottom of the pressure block 308 abuts against the top of the nut 306. This pushes the limiting block 309 to move downward within the screw 305, so that the limiting block 309 moves down into the pressure block 308. This causes the magnetic block 310 to be magnetically attracted to the inner bottom wall of the screw 305, thereby increasing the resistance to the longitudinal movement of the limiting block 309 and making the limiting block 309 stably located within the pressure block 308, thus fixing the tension sensor 200 on the rubber column 304.

[0026] like Figure 4 As shown, a movable rope 312 is fixedly connected to one side of the pressure block 308, and the other end of the movable rope 312 passes through and extends out of the inner wall of the screw 305.

[0027] In this embodiment, when the tension sensor 200 on the rubber column 304 needs to be replaced, the limiting block 309 is pulled upward away from the pressure block 308, the movable rope 312 is pulled to make the pressure block 308 completely retract into the screw 305, and the push rod 307 is pushed to make the nut 306 rotate upward away from the surface of the screw 305, so that the tension sensor 200 on the rubber column 304 can be replaced.

[0028] Working principle: The tension sensor 200 is fitted onto the surface of the screw 305, with the bottom of the tension sensor 200 abutting against the top of the rubber column 304. Pulling the movable rope 312 causes the pressure block 308 to fully retract into the screw 305. The push rod 307 then fits the nut 306 onto the surface of the screw 305 and rotates it, causing the bottom of the nut 306 to abut against the top of the rubber column 304. The elastic force of the spring 311 pushes the pressure block 308 to move laterally within the screw 305, causing the bottom of the pressure block 308 to abut against the top of the nut 306, thus pushing the limit block 309... The screw 305 moves downward and into the pressure block 308, fixing the tension sensor 200 onto the rubber column 304. The vibration force generated by the rotation of each roller on the winding machine 100 is transmitted to the outer shell of the winding machine 100 and the mounting block 301. The vibration force received by the mounting block 301 is transmitted to the rubber block 302, the damping block 303 and the rubber column 304. The rubber block 302, the damping block 303 and the rubber column 304 then neutralize and disperse the vibration force received by the tension sensor 200, enabling the tension sensor 200 to accurately monitor the film tension.

[0029] It should be noted that the winding machine 100, tension sensor 200, mounting block 301, rubber block 302, damping block 303, rubber column 304, screw 305 and magnetic block 310 mentioned above are all devices with relatively mature existing technology. The specific models can be selected according to actual needs. At the same time, the winding machine 100 and tension sensor 200 can be powered by the built-in power supply or by the mains power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An intelligent film winding tension adjustment mechanism for a co-extrusion blown film machine, characterized in that, include: Winding machine (100) and tension sensor (200); The anti-loosening mechanism (300) includes mounting blocks (301) fixedly connected to both sides of the winding machine (100). A rubber block (302) is fixedly connected to the top of the mounting block (301). A damping block (303) and a rubber column (304) are fixedly connected to the top of the rubber block (302). The tops of the damping block (303) and the rubber column (304) abut against the bottom of the tension sensor (200). A screw (305) is fixedly connected to the top of the rubber column (304). A nut (306) is threaded onto the surface of the screw (305).

2. The intelligent film winding tension adjustment mechanism of the co-extrusion blown film machine according to claim 1, characterized in that, The inner wall of the screw (305) is slidably connected to a pressure block (308) and a limiting block (309), and the surface of the limiting block (309) is slidably connected to the inner wall of the pressure block (308).

3. The intelligent film winding tension adjustment mechanism of the co-extrusion blown film machine according to claim 2, characterized in that, Both sides of the limiting block (309) are fixedly connected with magnetic blocks (310), the screw (305) is a pure iron component, and the surface of the magnetic block (310) is magnetically attracted to the inner wall of the screw (305).

4. The intelligent film winding tension adjustment mechanism of the co-extrusion blown film machine according to claim 2, characterized in that, A spring (311) is fixedly connected to one side of the pressure block (308), and the other end of the spring (311) is fixedly connected to the inner wall of the screw (305).

5. The intelligent film winding tension adjustment mechanism of the co-extrusion blown film machine according to claim 1, characterized in that, Two push rods (307) are fixedly connected to the surface of the nut (306), and one end of the push rod (307) is bent into an arc shape.

6. The intelligent film winding tension adjustment mechanism of the co-extrusion blown film machine according to claim 1, characterized in that, The surface of the damping block (303) is "X" shaped.

7. The intelligent film winding tension adjustment mechanism of the co-extrusion blown film machine according to claim 3, characterized in that, The inner wall of the screw (305) has a limiting groove (313), and the surface of the magnetic block (310) is slidably connected to the inner wall of the limiting groove (313).

8. The intelligent film winding tension adjustment mechanism of the co-extrusion blown film machine according to claim 2, characterized in that, A movable rope (312) is fixedly connected to one side of the pressure block (308), and the other end of the movable rope (312) passes through and extends out of the inner wall of the screw (305).

Images