Tension-adjustable unwinding device for die-cutting machine

Abstract

The utility model discloses a tension-adjustable unreeling device for a die-cutting machine, which relates to the technical field of die-cutting machines and comprises a base, an unreeling mechanism is arranged on one side of the top of the base, a protective frame is arranged on the top of the base, a baffle is arranged in the protective frame, an adjusting structure is arranged between the protective frame and the baffle, and the adjusting structure is arranged on the base. A second worm is meshed with a second worm gear, the second worm gear drives a sliding column to rotate, the two ends of the sliding column slide in two sliding grooves correspondingly, so that two convex plates are driven to slide on a protection frame, the vertical position of an adjusting roller can be adjusted through sliding of the two convex plates, and then the material tension adjusting effect is achieved. The up-down position of the adjusting roller is adjusted without adopting a screw rod mode, and the problems that dust and impurities fall onto the surface of the screw rod through a threaded groove and even fall into the bottom end of a connecting groove, so that the screw rod, a driving gear and a driven gear are abraded, and the service life of the device is affected are solved.

Description

Technical Field

[0001] This utility model relates to the field of die-cutting machine technology, specifically an adjustable tension unwinding device for a die-cutting machine. Background Technology

[0002] In the production process of a die-cutting machine, the unwinding device plays a crucial role in controlling the tension of the material.

[0003] In the prior art, the authorized announcement number CN222794789U discloses an automatic tension-adjusting unwinding device, which includes a base plate, an unwinding mechanism and a guiding mechanism on the upper side of the base plate, and an adjustment mechanism on the upper side of the base plate. The adjustment mechanism includes an adjustment roller, and a right frame plate and a left frame plate are respectively arranged on both sides of the adjustment roller. The bottom ends of the right frame plate and the left frame plate are fixedly connected to the top end of the base plate. A screw groove is opened on the side of the right frame plate near the adjustment roller, and a screw is rotatably arranged inside the screw groove.

[0004] In the above scheme, the screw sleeve rises or falls by rotating the screw, while the sliding of the slide sleeve on the slide bar keeps the adjusting roller horizontal during its up-and-down movement, thereby achieving tension adjustment. However, this screw adjustment method has obvious drawbacks: dust and impurities can easily fall onto the screw surface through the thread groove, and may even fall into the bottom of the connecting groove, leading to wear on the screw, driving gear, and driven gear, thus affecting the service life of the device. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable tension unwinding device for a die-cutting machine, in order to solve the problem in the prior art that dust and impurities can easily fall onto the screw surface through the threaded groove, and may even fall into the bottom of the connecting groove, thereby causing wear on the screw, driving gear and driven gear, and affecting the service life of the device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable tension unwinding device for a die-cutting machine, comprising a base, an unwinding mechanism on one side of the top of the base, a protective frame on the top of the base, a baffle inside the protective frame, an adjustment structure between the protective frame and the baffle, a sliding column inside the protective frame, a worm gear II fixedly connected to the outside of the sliding column, a support structure between the worm gear II and the protective frame, a worm shaft II meshing with the outside of the worm gear II, convex plates at both ends of the sliding column, a sliding groove on the outer bottom end of the convex plate, both ends of the sliding column respectively disposed inside the two sliding grooves and slidably connected to the convex plates, the top ends of the two convex plates passing through the top end inside the protective frame and slidably connected to the protective frame, and an adjustment roller rotatably connected between the two convex plates.

[0007] Preferably, the base has multiple guide rollers on its top, each guide roller having a guide plate rotatably connected to both ends, and each guide plate being fixedly connected to the base.

[0008] Preferably, the base has a mounting groove on its top, the protective frame is disposed inside the mounting groove, and the protective frame is fixedly connected to the base.

[0009] Preferably, the adjustment structure includes a long groove and a connecting block. The long groove is opened at the top of the protective frame and communicates with the interior of the protective frame. The top of the baffle is disposed inside the long groove and is slidably connected to the protective frame. The connecting block is fixedly connected to one side of the baffle, and a threaded rod is fixedly connected to the top of the connecting block.

[0010] Preferably, the adjustment structure further includes an internally threaded cylinder, which is threaded to the outer side of the top of the threaded rod. The top of the internally threaded cylinder passes through the inner top of the protective frame and is rotatably connected to the protective frame. A dustproof box is rotatably connected to the outer side of the internally threaded cylinder, and the dustproof box is fixedly connected to the top of the protective frame.

[0011] Preferably, the dustproof box is provided with a worm gear and a worm. The worm gear is fixedly connected to the outside of the internal threaded cylinder, and the worm is meshed with the outside of the worm gear. Both ends of the worm pass through the inside of the dustproof box and are rotatably connected to the dustproof box. A throttle is installed at one end of the worm. The dustproof box can protect the worm gear and the worm.

[0012] Preferably, the support structure includes two annular rotating cylinders, which are respectively fixedly connected to both sides of the worm gear. Support plates are rotatably connected to the outer sides of the two annular rotating cylinders, and the top ends of the two support plates are fixedly connected to the protective frame. The arrangement of the two annular rotating cylinders and the two support plates provides rotational support for the worm gear.

[0013] Preferably, a support block is rotatably connected to the outer side of one end of the second worm gear, and the support block is fixedly connected to the top of the inner side of the protective frame. The other end of the second worm gear passes through the inner side of the protective frame and is rotatably connected to the protective frame. A motor is provided at one end of the second worm gear, and the motor is fixedly connected to the outer side of the protective frame. The output end of the motor is fixedly connected to the other end of the second worm gear.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This application utilizes a worm gear two meshing with a worm wheel two, which drives the sliding column to rotate. The two ends of the sliding column slide in two sliding grooves respectively, thereby driving two convex plates to slide on the protective frame. By sliding the two convex plates, the up and down position of the adjusting roller can be adjusted, thereby achieving the effect of adjusting the material tension. This structural design eliminates the need to use a screw to adjust the up and down position of the adjusting roller, avoiding the problem of dust and impurities falling onto the screw surface through the thread groove, or even falling into the bottom of the connecting groove, which would lead to wear on the screw, driving gear, and driven gear, affecting the service life of the device.

[0016] 2. This application uses a worm gear to drive the internal threaded cylinder to rotate on the dust box and protective frame. The internal threaded cylinder is threadedly connected to the threaded rod. The threaded rod moves upward through the connecting block and the baffle. The baffle slides upward in the long groove, thereby opening the protective frame so that personnel can maintain and repair its internal parts. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an adjustable tension unwinding device for a die-cutting machine according to the present invention.

[0018] Figure 2 This is a cross-sectional view of the protective frame of an adjustable tension unwinding device for a die-cutting machine according to the present invention.

[0019] Figure 3 This is a cross-sectional view of the dustproof box of an adjustable tension unwinding device for a die-cutting machine according to the present invention;

[0020] Figure 4 This is a schematic diagram of the worm gear structure of an adjustable tension unwinding device for a die-cutting machine according to the present invention.

[0021] The following are the labeling elements in the diagram: 1. Base; 100. Mounting groove; 2. Unwinding mechanism; 3. Guide roller; 4. Guide plate; 5. Protective frame; 500. Long groove; 6. Baffle; 7. Connecting block; 8. Threaded rod; 9. Internal threaded cylinder; 10. Dustproof box; 11. Worm gear one; 12. Worm one; 13. Worm gear two; 14. Annular rotating drum; 15. Support plate; 16. Worm two; 17. Support block; 18. Motor; 19. Sliding column; 20. Convex plate; 200. Sliding groove; 21. Adjusting roller. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: Figure 1 - Figure 4 As shown, this utility model provides a technical solution for an adjustable tension unwinding device for a die-cutting machine, including a base 1, an unwinding mechanism 2 on one side of the top of the base 1, multiple guide rollers 3 on the top of the base 1, guide plates 4 rotatably connected to both ends of the multiple guide rollers 3, multiple guide plates 4 fixedly connected to the base 1, a protective frame 5 on the top of the base 1, an installation groove 100 on the top of the base 1, the protective frame 5 being disposed inside the installation groove 100, the protective frame 5 being fixedly connected to the base 1, a baffle 6 inside the protective frame 5, an adjustment structure between the protective frame 5 and the baffle 6, a sliding column 19 inside the protective frame 5, a worm gear 13 fixedly connected to the outside of the sliding column 19, a support structure between the worm gear 13 and the protective frame 5, the support structure including two annular rotating cylinders 14, the two annular rotating cylinders 14 being fixedly connected to both sides of the worm gear 13, and a support plate 15 rotatably connected to the outside of the two annular rotating cylinders 14, the top ends of the two support plates 15 being fixedly connected to the protective frame 5;

[0024] Worm gear 13 is meshed with worm 16 on its outer side. One end of worm 16 is rotatably connected to a support block 17, which is fixedly connected to the top of the inner side of the protective frame 5. The other end of worm 16 passes through the inner side of the protective frame 5 and is rotatably connected to the protective frame 5. One end of worm 16 is equipped with a motor 18, which is fixedly connected to the outer side of the protective frame 5. The output end of motor 18 is fixedly connected to the other end of worm 16. Both ends of sliding column 19 are provided with convex plates 20. The outer bottom end of the convex plate 20 is provided with a sliding groove 200. Both ends of sliding column 19 are respectively set inside the two sliding grooves 200 and are slidably connected to the convex plates 20. The top ends of the two convex plates 20 pass through the top of the inner side of the protective frame 5 and are slidably connected to the protective frame 5. An adjusting roller 21 is rotatably connected between the two convex plates 20.

[0025] Specifically, the motor 18 is started. The specific model of the motor 18 is not limited, but depends on the compatible equipment. The output end of the motor 18 drives the worm gear 16 to rotate on the protective frame 5 and the support block 17. The worm gear 16 meshes with the worm wheel 13, which drives the sliding column 19 to rotate. The two ends of the sliding column 19 slide in the two sliding grooves 200, thereby driving the two convex plates 20 to slide on the protective frame 5. By sliding the two convex plates 20, the up and down position of the adjusting roller 21 can be adjusted, thereby achieving the effect of adjusting the material tension. This structural design eliminates the need to use a screw to adjust the up and down position of the adjusting roller 21, avoiding the problem of dust and impurities falling onto the screw surface through the thread groove, or even falling into the bottom of the connecting groove, which would lead to wear on the screw, the driving gear, and the driven gear, affecting the service life of the device.

[0026] Example: Figure 2 - Figure 3As shown, the adjustment structure includes a long groove 500 and a connecting block 7. The long groove 500 is located at the top of the protective frame 5 and communicates with the interior of the protective frame 5. The top of the baffle 6 is located inside the long groove 500 and is slidably connected to the protective frame 5. The connecting block 7 is fixedly connected to one side of the baffle 6, and a threaded rod 8 is fixedly connected to the top of the connecting block 7. The adjustment structure also includes an internal threaded cylinder 9, which is threadedly connected to the outside of the top of the threaded rod 8. The top of the internal threaded cylinder 9 passes through the top of the interior of the protective frame 5 and is rotatably connected to the protective frame 5. A dustproof box 10 is rotatably connected to the outside of the internal threaded cylinder 9. The dustproof box 10 is fixedly connected to the top of the protective frame 5. The dustproof box 10 is equipped with a worm gear 11 and a worm 12 inside. The worm gear 11 is fixedly connected to the outside of the internal threaded cylinder 9, and the worm 12 is meshed with the outside of the worm gear 11. Both ends of the worm 12 pass through the inside of the dustproof box 10 and are rotatably connected to the dustproof box 10. A handle is installed at one end of the worm 12.

[0027] Specifically, when the throttle is turned, the worm gear 12 rotates on the dust box 10. Since the worm gear 12 meshes with the worm wheel 11, the worm wheel 11 drives the internal threaded cylinder 9 to rotate on the dust box 10 and the protective frame 5. The internal threaded cylinder 9 is threadedly connected to the threaded rod 8. The threaded rod 8 moves upward through the connecting block 7 and the baffle 6. The baffle 6 slides upward in the long groove 500, thereby opening the protective frame 5 so that personnel can maintain and repair its internal parts. The dust box 10 can effectively prevent dust and impurities from entering the transmission components and extend the service life of the device.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An adjustable tension unwinding device for a die-cutting machine, characterized in that: Includes a base (1), a winding mechanism (2) is provided on one side of the top of the base (1), a protective frame (5) is provided on the top of the base (1), a baffle (6) is provided inside the protective frame (5), an adjustment structure is provided between the protective frame (5) and the baffle (6), a sliding column (19) is provided inside the protective frame (5), a worm gear (13) is fixedly connected to the outside of the sliding column (19), a support structure is provided between the worm gear (13) and the protective frame (5), and the outside of the worm gear (13) The worm gear (16) is meshed with the sliding column (19). Both ends of the sliding column (19) are provided with convex plates (20). The outer bottom end of the convex plate (20) is provided with a sliding groove (200). Both ends of the sliding column (19) are respectively located inside the two sliding grooves (200) and are slidably connected to the convex plates (20). The top ends of the two convex plates (20) pass through the top end of the inner part of the protective frame (5) and are slidably connected to the protective frame (5). An adjusting roller (21) is rotatably connected between the two convex plates (20).

2. The adjustable tension unwinding device for a die-cutting machine according to claim 1, characterized in that: The base (1) is provided with multiple guide rollers (3) at the top. Both ends of the multiple guide rollers (3) are rotatably connected to guide plates (4). The multiple guide plates (4) are fixedly connected to the base (1).

3. The adjustable tension unwinding device for a die-cutting machine according to claim 1, characterized in that: The base (1) has an installation groove (100) on its top, and the protective frame (5) is located inside the installation groove (100). The protective frame (5) is fixedly connected to the base (1).

4. The adjustable tension unwinding device for a die-cutting machine according to claim 1, characterized in that: The adjustment structure includes a long groove (500) and a connecting block (7). The long groove (500) is opened on the top of the protective frame (5) and communicates with the interior of the protective frame (5). The top of the baffle (6) is located inside the long groove (500) and is slidably connected to the protective frame (5). The connecting block (7) is fixedly connected to one side of the baffle (6), and a threaded rod (8) is fixedly connected to the top of the connecting block (7).

5. The adjustable tension unwinding device for a die-cutting machine according to claim 4, characterized in that: The adjustment structure also includes an internal threaded cylinder (9), which is threaded to the outside of the top of the threaded rod (8). The top of the internal threaded cylinder (9) passes through the inside top of the protective frame (5) and is rotatably connected to the protective frame (5). A dustproof box (10) is rotatably connected to the outside of the internal threaded cylinder (9), and the dustproof box (10) is fixedly connected to the top of the protective frame (5).

6. The adjustable tension unwinding device for a die-cutting machine according to claim 5, characterized in that: The dust box (10) is provided with a worm gear (11) and a worm (12) inside. The worm gear (11) is fixedly connected to the outside of the internal threaded cylinder (9). The worm (12) is meshed with the outside of the worm gear (11). Both ends of the worm (12) pass through the inside of the dust box (10) and are rotatably connected to the dust box (10). A throttle is installed at one end of the worm (12).

7. The adjustable tension unwinding device for a die-cutting machine according to claim 1, characterized in that: The support structure includes two annular rotating cylinders (14), which are fixedly connected to both sides of the worm gear (13). Support plates (15) are rotatably connected to the outer sides of the two annular rotating cylinders (14), and the tops of the two support plates (15) are fixedly connected to the protective frame (5).

8. The adjustable tension unwinding device for a die-cutting machine according to claim 1, characterized in that: One end of the second worm gear (16) is rotatably connected to a support block (17), which is fixedly connected to the top of the inside of the protective frame (5). The other end of the second worm gear (16) passes through the inside of the protective frame (5) and is rotatably connected to the protective frame (5). One end of the second worm gear (16) is provided with a motor (18), which is fixedly connected to the outside of the protective frame (5). The output end of the motor (18) is fixedly connected to the other end of the second worm gear (16).

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