Tension buffering mechanism of laser die-cutting splitting machine

Abstract

The utility model relates to the field of tension adjustment, and discloses a tension buffering mechanism of a laser die cutting splitting machine, which comprises a connecting frame, tension rollers are rotatably connected to the upper end and the lower end of the connecting frame, a tension buffering device is arranged at the front end of the connecting frame, and a buffering adjusting device is arranged in the connecting frame. The tension buffering device comprises a motor, and an output shaft of the motor is fixedly connected with a sleeve. Through the motor, the rotating block, the connecting shaft, the sleeve and the limiting block, deflection force generated during vibration of materials in the laser die-cutting splitting machine can be buffered through the spring when the materials slightly vibrate, and at the moment, the interval angle between the rotating block and the limiting block forms a buffering adjusting interval; in other words, tension adjustment in the interval is maintained through the spring, and therefore the motor only needs to adjust tension fluctuation exceeding the buffering adjustment interval, and the time for the motor to be continuously in the braking process and the forward and reverse rotation process in the tension adjustment process is shortened.

Description

Technical Field

[0001] The utility model relates to the field of tension adjustment, in particular to a tension buffer mechanism of a laser die cutting and slitting machine. Background Art

[0002] The tension buffer mechanism is a device used to balance tension or reduce tension changes in a motion system. It is usually used in systems that require continuous motion, including inside laser die-cutting and slitting machines, to ensure that the material maintains a constant tension during motion, thereby achieving better processing results and product quality. In the prior art, people often connect the tension roller through a motor and control the swing amplitude of the tension roller according to the feedback data of the potentiometer, thereby controlling the overall tension of the material in the equipment to be stable.

[0003] However, in actual use, since the material is affected by the external environment during movement, its surface tension will always be in a changing state, so the motor will continue to maintain forward and reverse movement and braking state, thus affecting the overall service life of the motor. Therefore, a tension buffer mechanism of a laser die-cutting slitting machine is proposed to solve the above problem. Summary of the invention

[0004] In order to make up for the above shortcomings, the utility model provides a tension buffer mechanism for a laser die-cutting and slitting machine, which aims to improve the problem in the prior art that the motor will continue to be in forward, reverse and braking states when controlling the material tension through the motor.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a tension buffer mechanism of a laser die-cutting and slitting machine, comprising a connecting frame, the upper and lower ends of the connecting frame are rotatably connected with tension rollers, the front end of the connecting frame is provided with a tension buffer device, and the interior of the connecting frame is provided with a buffer adjustment device;

[0006] The tension buffer device comprises a motor, a sleeve is fixedly connected to the output shaft of the motor, a limiting block is fixedly connected to the inner arc surface of the sleeve, a connecting shaft is rotatably connected to the inner arc surface of the sleeve, and a rotating block is fixedly connected to the outer arc surface of the connecting shaft.

[0007] As a further description of the above technical solution:

[0008] The cache adjustment device comprises a cache roller, the front and rear ends of the cache roller are rotatably connected to a group of extension frames, the center of the inner surface of the connecting frame is slidably connected to an insertion rod, and the outer arc surface of the insertion rod is fixedly connected to a ring block.

[0009] As a further description of the above technical solution:

[0010] Both ends of the connecting frame are provided with through holes, the center of the inner surface of the connecting frame is provided with a rectangular sliding groove, and the center of the inner surface of the connecting frame is provided with a cylindrical sliding groove.

[0011] As a further description of the above technical solution:

[0012] A through hole is formed at one end of the sleeve away from the motor, and the inner arc surface of the sleeve is elastically connected to the connecting shaft via a volute spring.

[0013] As a further description of the above technical solution:

[0014] Two groups of limit blocks are arranged on the inner arc surface of the sleeve, and the two groups of limit blocks are symmetrically distributed with the center line of the sleeve as the symmetry axis. One end of the connecting shaft away from the sleeve is fixedly connected to the connecting frame.

[0015] As a further description of the above technical solution:

[0016] The outer surface of the extension frame is slidably connected to the connecting frame, and a through hole is formed at one end of the extension frame close to the buffer roller.

[0017] As a further description of the above technical solution:

[0018] The middle of the extension frame is provided with a plurality of groups of through-holes, and the diameter of the insertion rod is the same as the inner diameter of the insertion hole provided in the middle of the extension frame.

[0019] As a further description of the above technical solution:

[0020] The outer arc surface of the ring block is slidably connected to the connecting frame, and the outer surface of the ring block is elastically connected to the connecting frame through a spring.

[0021] The utility model has the following beneficial effects:

[0022] 1. The motor, rotating block, connecting shaft, sleeve and limit block provided in the utility model can buffer the deflection force generated by the vibration through the spring when the material inside the laser die-cutting and slitting machine vibrates slightly, and form a buffer adjustment interval through the interval angle between the rotating block and the limit block, that is, the tension adjustment in this interval will be maintained by the spring, so that the motor only needs to adjust the tension fluctuation exceeding the buffer adjustment interval, thereby reducing the time it is continuously in the braking and forward and reverse processes during the tension adjustment process.

[0023] 2. The utility model provides an insert rod, a ring block, a buffer roller and an extension frame, so as to quantitatively control the material buffer volume of the device according to actual use requirements, and cooperate with two sets of tension rollers driven by a motor and a "Z"-shaped angle formed by the connecting frame to accurately control the material buffer volume, thereby improving the stability of the material inside the device during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional schematic diagram of a tension buffer mechanism of a laser die-cutting and slitting machine proposed in the utility model;

[0025] Figure 2 This is a schematic diagram of a sleeve cross-section of a tension buffer mechanism of a laser die-cutting and slitting machine proposed by the utility model;

[0026] Figure 3 This is a schematic diagram of a cross section of a connecting frame of a tension buffer mechanism of a laser die-cutting and slitting machine proposed in the utility model.

[0027] Legend:

[0028] 1. Connecting frame; 2. Tension buffer device; 3. Cache adjustment device; 4. Tension roller; 201. Motor; 202. Rotating block; 203. Connecting shaft; 204. Sleeve; 205. Limiting block; 301. Insert rod; 302. Ring block; 303. Cache roller; 304. Extension frame. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1-Figure 2 The utility model provides an embodiment: a tension buffer mechanism of a laser die-cutting and slitting machine, comprising a connecting frame 1, the upper and lower ends of the connecting frame 1 are rotatably connected with tension rollers 4, the front end of the connecting frame 1 is provided with a tension buffer device 2, and the interior of the connecting frame 1 is provided with a buffer adjustment device 3;

[0031] The tension buffer device 2 includes a motor 201, a sleeve 204 is fixedly connected to the output shaft of the motor 201, a limit block 205 is fixedly connected to the inner arc surface of the sleeve 204, a connecting shaft 203 is rotatably connected to the inner arc surface of the sleeve 204, and a rotating block 202 is fixedly connected to the outer arc surface of the connecting shaft 203.

[0032] Through holes are provided at both ends of the connecting frame 1, so that the tension roller 4 can be accommodated inside it. A rectangular slide groove is provided at the center of the inner surface of the connecting frame 1, so that the extension frame 304 can slide here. A cylindrical slide groove is provided at the center of the inner surface of the connecting frame 1, so that the insertion rod 301 can slide inside it. A through hole is provided at the end of the sleeve 204 away from the motor 201, so that the connecting shaft 203 can pass through and be rotatably connected thereto. The inner arc surface of the sleeve 204 is elastically connected to the connecting shaft 203 by a volute spring, so during the rotation of the sleeve 204, the connecting shaft 203 can be driven to rotate by the volute spring. Two groups of limit blocks 205 are provided on the inner arc surface of the sleeve 204, and the two groups of limit blocks 205 are symmetrically distributed with the center line of the sleeve 204 as the symmetry axis. The end of the connecting shaft 203 away from the sleeve 204 is fixedly connected to the connecting frame 1.

[0033] Reference Figure 1 and Figure 3 The cache adjustment device 3 includes a cache roller 303, and the front and rear ends of the cache roller 303 are rotatably connected to a group of extension frames 304. The center of the inner surface of the connecting frame 1 is slidably connected to an insertion rod 301, and the outer arc surface of the insertion rod 301 is fixedly connected to a ring block 302.

[0034] The outer surface of the extension frame 304 is slidably connected to the connecting frame 1, and a through hole is provided at one end of the extension frame 304 close to the buffer roller 303, so that it can be connected to the buffer roller 303, and a plurality of through holes are provided in the middle of the extension frame 304, so that when the insertion rod 301 is inserted therein, the position of the entire extension frame 304 will be limited, and the diameter of the insertion rod 301 is the same as the inner diameter of the hole provided in the middle of the extension frame 304, and the outer arc surface of the ring block 302 is slidably connected to the connecting frame 1, and the diameter of the ring block 302 is larger than the diameter of the insertion rod 301, so that the insertion rod 301 can be restricted from escaping from the connecting frame 1, and the outer surface of the ring block 302 is elastically connected to the connecting frame 1 through a spring, so when people release the insertion rod 301, the spring can drive the insertion rod 301 to move toward the extension frame 304 through its own elastic force.

[0035] Working principle: When the device is in use, the material needs to be passed in a Z shape between the two sets of tension rollers 4 of the device, and the motor 201 is started to drive the sleeve 204 as a whole to start rotating for tension adjustment. At the same time, when the tension at the tension roller 4 changes instantaneously, the connecting shaft 203 will synchronously start to rotate inside the sleeve 204. At this time, the vortex spring will use its own elastic force to buffer the rotational force at the connecting shaft 203 and the connecting frame 1. When the rotational force is too large, the rotating block 202 will come into contact with the limit block 205 driven by the connecting shaft 203. At this time, the vortex spring will no longer be able to continue to provide buffering for the rotational force, and the motor 201 will drive the sleeve 204 and the limit block 205 to push the rotating block 202 to move and adjust the tension.

[0036] At the same time, before the device needs to transport the materials waiting for laser cutting, it is necessary to adjust the buffering capacity according to the different groups of materials. At this time, the insertion rods 301 on both sides can be pulled to make them move toward each other, and then push the extension frame 304. At this time, the extension frame 304 will drive the buffer roller 303 to move in the horizontal direction under the push. When the adjustment is completed, the insertion rod 301 can be loosened and the spring can drive the insertion rod 301 to move toward the extension frame 304 through its own elastic force, and insert it into its internal socket to locate its position. At this time, the material can be threaded, and the material between the upper and lower groups of tension rollers 4 is lifted up by the buffer roller 303, thereby forming a buffer space.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tension buffer mechanism for a laser die-cutting and slitting machine, comprising a connecting frame (1), characterized in that: The upper and lower ends of the connecting frame (1) are rotatably connected to tension rollers (4), the front end of the connecting frame (1) is provided with a tension buffer device (2), and the interior of the connecting frame (1) is provided with a buffer adjustment device (3); The tension buffer device (2) comprises a motor (201), a sleeve (204) fixedly connected to the output shaft of the motor (201), a limit block (205) fixedly connected to the inner arc surface of the sleeve (204), a connecting shaft (203) rotatably connected to the inner arc surface of the sleeve (204), and a rotating block (202) fixedly connected to the outer arc surface of the connecting shaft (203).

2. A tension buffer mechanism for a laser die-cutting and slitting machine according to claim 1, characterized in that: The cache adjustment device (3) comprises a cache roller (303), the front and rear ends of the cache roller (303) are rotatably connected to a group of extension frames (304), the center of the inner surface of the connecting frame (1) is slidably connected to an insertion rod (301), and the outer arc surface of the insertion rod (301) is fixedly connected to a ring block (302).

3. A tension buffer mechanism for a laser die-cutting and slitting machine according to claim 1, characterized in that: Through holes are provided at both ends of the connecting frame (1), a rectangular slide groove is provided at the center of the inner surface of the connecting frame (1), and a cylindrical slide groove is provided at the center of the inner surface of the connecting frame (1).

4. The tension buffer mechanism of a laser die-cutting and slitting machine according to claim 1, characterized in that: A through hole is provided at one end of the sleeve (204) away from the motor (201), and the inner arc surface of the sleeve (204) is elastically connected to the connecting shaft (203) via a spiral spring.

5. The tension buffer mechanism of a laser die-cutting and slitting machine according to claim 1, characterized in that: Two groups of limit blocks (205) are provided on the inner arc surface of the sleeve (204), and the two groups of limit blocks (205) are symmetrically distributed with the center line of the sleeve (204) as the symmetry axis. One end of the connecting shaft (203) away from the sleeve (204) is fixedly connected to the connecting frame (1).

6. A tension buffer mechanism for a laser die-cutting and slitting machine according to claim 2, characterized in that: The outer surface of the extension frame (304) is slidably connected to the connecting frame (1), and a through hole is provided at one end of the extension frame (304) close to the buffer roller (303).

7. The tension buffer mechanism of a laser die-cutting and slitting machine according to claim 2, characterized in that: The middle of the extension frame (304) is provided with a plurality of groups of through-holes, and the diameter of the insertion rod (301) is the same as the inner diameter of the holes provided in the middle of the extension frame (304).

8. The tension buffer mechanism of a laser die-cutting and slitting machine according to claim 2, characterized in that: The outer arc surface of the ring block (302) is slidably connected to the connecting frame (1), and the outer surface of the ring block (302) is elastically connected to the connecting frame (1) via a spring.

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