Inner and outer double-track device of transverse drawing machine

Abstract

The utility model relates to the technical field of film feeding rails, and discloses an inner and outer double-rail device of a transverse drawing machine, which comprises a mounting frame, a fixing shaft is sleeved on the bottom end face of the mounting frame, a transition chain wheel is fixedly connected on the side wall of the fixing shaft, and an adjusting component is arranged on the bottom end face of the mounting frame. According to the inner and outer double-track device of the transverse stretching machine, dynamic adjustment of the distance between film clamps is achieved by changing the gap between the adjusting chain wheels, the stretching multiple of a film can be flexibly controlled, and therefore the production requirements of different film specifications are met, the adaptability of equipment is improved, and the limiting chain wheels and the adjusting chain wheels move oppositely, so that the chain is always kept in a tightened state; the chain can be prevented from slipping in the operation process, the stability and the transmission precision of a transmission system are ensured, and therefore stable operation of a film in the stretching process is ensured, and uneven stretching or deviation caused by chain looseness in the stretching process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to film feeding track technical field, concretely to a kind of horizontal puller inner and outer double track device. BACKGROUND

[0002] In the field of special film preparation, the preparation of ultra-thin film is generally obtained by stretching the film after being clamped and transmitted through the track. The track is generally divided into inner track and outer track. The film clamp is transmitted through the inner track for drawing, and is sent back to the starting position through the outer track for film feeding.

[0003] The prior art is divided into two types. One type has inner and outer tracks arranged in the drying room. After the film is collected, the temperature of the film clamp is still high when it returns to the film feeding track from the outer track. When the film clamp clamps the film again, the edge of the film, i.e. the clamped part, is easily scalded, which seriously affects the quality of the product. The other type has inner and outer tracks arranged inside and outside the drying room, respectively, which can reduce the temperature of the chain on the outer track and the film clamp arranged on the chain, preventing the film clamp from scalding the film at the film feeding position.

[0004] However, both the above-mentioned inner and outer double tracks arranged in the drying room or arranged separately inside and outside the drying room do not have the function of adjusting the stretching length. The inability to adjust the stretching length means that the stretching ratio is fixed, which limits the adjustment space of the film thickness and physical properties, making it difficult to produce films of different specifications and limiting the diversity and application range of the product. In view of this, we propose a horizontal puller inner and outer double track device. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a horizontal puller inner and outer double track device to solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a horizontal puller inner and outer double track device, comprising a mounting frame, a fixed shaft is sleeved on the bottom end face of the mounting frame, a transition sprocket is fixedly connected to the side wall of the fixed shaft, a chain is arranged on the outer wall of the transition sprocket, an adjusting assembly is arranged on the bottom end face of the mounting frame, and the adjusting assembly comprises:

[0007] A driving sprocket is fixedly connected to the outer wall of the first rotating shaft.

[0008] An adjusting sprocket is fixedly connected to the side wall of the second rotating shaft.

[0009] A hydraulic cylinder is fixedly connected to the bottom end surface of the mounting frame, and an output end of the hydraulic cylinder is fixedly connected to a limiting block.

[0010] A limiting sprocket is fixedly connected to the side wall of the third rotating shaft, the side wall of the third rotating shaft is sleeved with an extension rod, one end of the extension rod away from the third rotating shaft is sleeved with the second rotating shaft, and the side wall of the extension rod is sleeved with a spring.

[0011] Preferably, a horizontal groove is formed in the bottom end surface of the mounting frame, the horizontal groove is in sliding connection with the first rotating shaft, the side wall of the first rotating shaft is sleeved with a linkage rod, and one end of the linkage rod away from the first rotating shaft is sleeved in the side wall of the second rotating shaft.

[0012] Preferably, a plurality of groups of the transition sprockets are arranged on the bottom end surface of the mounting frame, and the transition sprockets are in engagement with the chain.

[0013] Preferably, the chain is in engagement with the driving sprocket, the adjusting sprocket and the limiting sprocket, the adjusting sprocket is arranged in the drying room, and the limiting sprocket is arranged outside the drying room.

[0014] Preferably, the two ends of the spring are fixedly connected to the side wall of the extension rod, the limiting block is in abutment with the side wall of the movable block, the spring pulls the extension rod to contract, further pulls the second rotating shaft and the third rotating shaft to move towards each other, and the limiting block limits the rotating angle of the movable block, thereby adjusting the distance between the second rotating shaft and the third rotating shaft.

[0015] Preferably, the movable block and the linkage rods are arranged in two groups, one group of the linkage rods is sleeved with the second rotating shaft, and the other group of the linkage rods is sleeved with the third rotating shaft.

[0016] Compared with the prior art, the horizontal pulling machine inner-outer double-track device has the following beneficial effects:

[0017] 1. The horizontal pulling machine inner-outer double-track device changes the gap of the adjusting sprocket to realize dynamic adjustment of the distance between the film clamps, can flexibly control the stretching multiple of the film, thereby adapting to the production requirements of different film specifications, is particularly important for producing films with different thicknesses and different materials, improves the adaptability of the equipment, the limiting sprocket and the adjusting sprocket move towards each other, thereby keeping the chain in a tight state at all times, can prevent the chain from slipping during operation, ensures the stability and transmission accuracy of the transmission system, thereby ensuring the smooth operation of the film during stretching and avoiding uneven stretching or deviation caused by chain relaxation during stretching.

[0018] 2. The horizontal stretching machine has an internal and external double track device. Through the linkage rod and the horizontal groove, the distance between the two sets of adjusting sprockets is consistent with the distance between the two sets of driving sprockets. This ensures that the film maintains a stretched state for a certain period of time after stretching. Maintaining a tension state for a certain period of time after the film is stretched helps to shape the film and avoids the rebound of thickness or shape caused by rapid shrinkage after stretching. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0020] Figure 2 This is a bottom view of the adjustment component of this utility model;

[0021] Figure 3 This is a schematic diagram of the hydraulic cylinder structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the linkage structure of this utility model.

[0023] In the diagram: 1. Mounting bracket; 2. Fixed shaft; 3. Transition sprocket; 4. Chain; 5. Adjustment assembly; 501. Shaft 1; 502. Drive sprocket; 503. Groove; 504. Shaft 2; 505. Adjustment sprocket; 506. Movable block; 507. Connecting rod; 508. Hydraulic cylinder; 509. Limit block; 510. Shaft 3; 511. Limit sprocket; 512. Telescopic rod; 513. Spring; 6. Horizontal groove; 7. Linkage rod. Detailed Implementation

[0024] like Figures 1-4 As shown, this utility model provides a technical solution: a double-track device for a horizontal stretching machine, including a mounting frame 1, a fixed shaft 2 sleeved on the bottom end face of the mounting frame 1, a transition sprocket 3 fixedly connected to the side wall of the fixed shaft 2, a chain 4 provided on the outer wall of the transition sprocket 3, and several sets of transition sprockets 3 arranged on the bottom end face of the mounting frame 1, the transition sprockets 3 meshing with the chain 4, and an adjustment component 5 provided on the bottom end face of the mounting frame 1, the adjustment component 5 including:

[0025] The drive sprocket 502 is mounted on the bottom of the mounting bracket 1, and the drive sprocket 502 is fixedly connected to the outer wall of the drive sprocket 501. The drive sprocket 502, the slot 503, the second drive sprocket 504, the adjusting sprocket 505, the movable block 506, the connecting rod 507, the hydraulic cylinder 508, the limit block 509, the third drive sprocket 510, the limit sprocket 511, the telescopic rod 512, and the spring 513 are also included.

[0026] In an embodiment of the utility model, the bottom of mounting frame 1 is provided with a notch 503, the notch 503 is movably connected with a rotating shaft two 504, an adjusting sprocket 505 is fixedly connected with the side wall of rotating shaft two 504, a chain 4 is engaged with driving sprocket 502, the chain 4 is engaged with adjusting sprocket 505, the chain 4 is engaged with limiting sprocket 511, adjusting sprocket 505 is located in the drying room, limiting sprocket 511 is located outside the drying room, the bottom of mounting frame 1 is rotatably connected with a movable block 506, the end surface of movable block 506 is sleeved with a connecting rod 507, the connecting rod 507 is rotatably connected with rotating shaft two 504, a hydraulic cylinder 508 is fixedly connected with the bottom end surface of mounting frame 1, the output end of hydraulic cylinder 508 is fixedly connected with a limiting block 509.

[0027] The notch 503 is movably connected with a rotating shaft three 510, the limiting sprocket 511 is fixedly connected with the side wall of rotating shaft three 510, the side wall of rotating shaft three 510 is sleeved with a telescopic rod 512, one end of telescopic rod 512 away from rotating shaft three 510 is sleeved with rotating shaft two 504, the side wall of telescopic rod 512 is sleeved with a spring 513, the both ends of spring 513 are fixedly connected with the side wall of telescopic rod 512 respectively, the limiting block 509 is abutted with the side wall of movable block 506, spring 513 pulls telescopic rod 512 to contract, further pulls rotating shaft two 504 and rotating shaft three 510 to move towards each other, and the limiting block 509 limits the rotation angle of movable block 506, thereby adjusting the distance between rotating shaft two 504 and rotating shaft three 510.

[0028] The working principle of the double-track device is consistent with the inner and outer double-track circulation system mentioned in "an inner and outer double-track circulation system" (the announcement number is CN206254490U), so it is not repeated here.

[0029] The hydraulic cylinder 508 drives the connecting rod 507 to move away from the output shaft of the hydraulic cylinder 508, so that the movable block 506 can move towards the output shaft of the hydraulic cylinder 508, the spring 513 pulls the rotating shaft two 504 towards the output shaft of the hydraulic cylinder 508, thereby the gap between the two adjusting sprockets 505 becomes smaller, further the gap between the two film clamps becomes narrower, the reverse movement of the hydraulic cylinder 508 makes the gap between the two adjusting sprockets 505 larger, further the gap between the two film clamps becomes wider, through changing the gap between the adjusting sprockets 505 to realize the dynamic adjustment of the film clamp spacing, the stretching multiple of the film can be flexibly controlled, thereby adapting to the production needs of different film specifications, which is particularly important for producing films of different thicknesses and different materials, and improves the adaptability of the equipment.

[0030] When the adjusting sprocket 505 moves towards the output shaft of the hydraulic cylinder 508, the telescopic rod 512 pulls the limiting sprocket 511 to move, and the limiting sprocket 511 moves towards the adjusting sprocket 505, so that the chain 4 is always kept in a tight state, the chain 4 can be prevented from slipping during operation, and the stability and transmission accuracy of the transmission system are ensured, so that the smooth operation of the film during stretching is ensured, and uneven stretching or deviation caused by relaxation of the chain 4 during stretching is avoided.

[0031] In addition, the bottom end face of the mounting frame 1 is provided with a horizontal groove 6, the horizontal groove 6 is in sliding connection with the rotating shaft one 501, the side wall of the rotating shaft two 504 is sleeved with a linkage rod 7, one end of the linkage rod 7 away from the rotating shaft one 501 is sleeved in the side wall of the rotating shaft two 504, when the adjusting sprocket 505 moves towards the output shaft of the hydraulic cylinder 508, the rotating shaft two 504 drives the rotating shaft one 501 to move synchronously in the horizontal groove 6 through the transmission of the linkage rod 7, the distance between the two adjusting sprockets 505 is consistent with the distance between the two driving sprockets 502, so that the film can keep a certain stretching state after stretching, and the film can be shaped after stretching, the rebound of thickness or shape caused by rapid retraction after stretching is avoided, the synchronous driving sprockets 502 ensure the continuous tension of the film after stretching, so that the film structure is more uniform and the surface is smoother, and the film quality is improved.

[0032] In the utility model, the movable block 506 moves towards the output shaft of the hydraulic cylinder 508, the spring 513 pulls the rotating shaft two 504 towards the output shaft of the hydraulic cylinder 508, the gap between the two adjusting sprockets 505 is small, the gap between the two film clamps is narrow, the telescopic rod 512 pulls the limiting sprocket 511 to move at the same time, the limiting sprocket 511 moves towards the adjusting sprocket 505, so that the chain 4 is always kept in a tight state, the rotating shaft two 504 drives the rotating shaft one 501 to move synchronously in the horizontal groove 6 through the transmission of the linkage rod 7, the distance between the two adjusting sprockets 505 is consistent with the distance between the two driving sprockets 502, so that the film can keep a certain stretching state after stretching.

[0033] The above general description of the utility model is made in detail, but some modifications or improvements can be made on the basis of the utility model, which is obvious to the general technical personnel in the technical field, therefore, the modifications or improvements without departing from the utility model idea spirit are within the protection scope of the utility model.

Claims

1. A double-track device for a horizontal stretching machine, comprising a mounting frame (1), wherein a fixed shaft (2) is sleeved on the bottom end face of the mounting frame (1), a transition sprocket (3) is fixedly connected to the side wall of the fixed shaft (2), and a chain (4) is provided on the outer wall of the transition sprocket (3), characterized in that: The bottom end face of the mounting frame (1) is provided with an adjusting assembly (5), the adjusting assembly (5) comprises: A driving sprocket (502), the bottom of the mounting frame (1) is provided with a rotating shaft (501), the driving sprocket (502) is fixedly connected to the outer wall of the rotating shaft (501); An adjusting sprocket (505), the bottom of the mounting frame (1) is provided with a notch (503), the notch (503) is movably connected with a rotating shaft (504), the adjusting sprocket (505) is fixedly connected to the side wall of the rotating shaft (504); A hydraulic cylinder (508), the bottom of the mounting frame (1) is movably connected with a movable block (506), the end face of the movable block (506) is sleeved with a connecting rod (507), the connecting rod (507) is movably connected with the rotating shaft (504), the hydraulic cylinder (508) is fixedly connected to the bottom end face of the mounting frame (1), the output end of the hydraulic cylinder (508) is fixedly connected with a limiting block (509); A limiting sprocket (511), the notch (503) is movably connected with a rotating shaft (510), the limiting sprocket (511) is fixedly connected to the side wall of the rotating shaft (510), the side wall of the rotating shaft (510) is sleeved with a telescopic rod (512), one end of the telescopic rod (512) away from the rotating shaft (510) is sleeved with the rotating shaft (504), the side wall of the telescopic rod (512) is sleeved with a spring (513).

2. A dual track system for a horizontal draw machine according to claim 1, wherein: The bottom end face of the mounting frame (1) is provided with a horizontal groove (6), the horizontal groove (6) is movably connected with the rotating shaft (501), the side wall of the rotating shaft (501) is sleeved with a linkage rod (7), one end of the linkage rod (7) away from the rotating shaft (501) is sleeved with the side wall of the rotating shaft (504).

3. A dual track system for a horizontal draw machine according to claim 1, wherein: The number of the transition sprockets (3) is provided with several groups, the several groups of transition sprockets (3) are arranged on the bottom end face of the mounting frame (1), the transition sprockets (3) are engaged with the chain (4).

4. The dual track system for a horizontal draw machine of claim 1, wherein: The chain (4) is engaged with the driving sprocket (502), the chain (4) is engaged with the adjusting sprocket (505), the chain (4) is engaged with the limiting sprocket (511), the adjusting sprocket (505) is located in the drying room, and the limiting sprocket (511) is located outside the drying room.

5. The dual track system for a horizontal draw machine of claim 1, wherein: The two ends of the spring (513) are fixedly connected with the side wall of the telescopic rod (512), and the limiting block (509) abuts against the side wall of the movable block (506).

6. A dual track system for a horizontal draw machine according to claim 1, wherein: The number of the movable block (506) and the connecting rod (507) is provided with two groups, one group of the connecting rod (507) is sleeved with the rotating shaft (504), and the other group of the connecting rod (507) is sleeved with the rotating shaft (510).

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