Inner and outer clamping and supporting structure for paper tube cutting

Abstract

The utility model discloses an internal and external clamping support structure for paper tube cutting, which comprises a base and a support shaft transversely rotatable above the base, the inside of the support shaft is hollow, inner support plates arranged in a mirror image manner are respectively embedded at the top and the bottom of the support shaft, and the inside of the support shaft is coaxially and rotatably connected with a rotating shaft. When the rotating shaft rotates forwards and backwards, the two inner supporting plates can move oppositely or oppositely, the outer faces of the two inner supporting plates are in an arc shape, the radian of the outer faces of the two inner supporting plates is consistent with that of the supporting shaft, frosted faces are arranged on the outer arc faces, and two supporting rollers capable of ascending and descending are further arranged below the supporting shaft.

Description

Technical Field

[0001] The utility model relates to the field of paper tube cutting, in particular to an inner and outer clamping support structure for paper tube cutting. Background Art

[0002] Paper tubes are tubular objects made of paper. Most paper tubes are spiral paper tubes and seamless paper tubes. Paper tubes are widely used in many fields, including chemical fiber, film, printing, papermaking, metallurgy and other industries. During the processing of paper tubes, paper tube cutting equipment is needed to cut the longer paper tubes into sections and cut them into the required specifications.

[0003] After searching, the utility model publication number is: CN210616690U, which is an internal and external clamping support device for manual cutting of paper tubes. Its structure includes a base, and a fixed clamp and a vertical frame are arranged on the base. The fixed clamp is connected to the upper surface of the base by rivets, and the vertical frame is connected to the right side of the upper surface of the base by welding; a telescopic mechanism is arranged on the left surface of the vertical frame, and a connecting plate is arranged at the left end of the telescopic mechanism, and a hollow column is arranged on the connecting plate, and a telescopic spring is arranged inside the hollow column, and an inner clamp is arranged at the upper end of the telescopic spring; an adjusting screw and a through hole are arranged on the fixed clamp. The utility model can effectively fix paper tubes according to different diameters, increase the range of the clamping support device, avoid the inability of the clamping support device to fix the paper tube due to the diameter being too large or too small, and improve the flexibility of the clamping support device when using;

[0004] However, the several inner clamping plates of this utility model are extended and retracted by telescopic springs to adapt to paper tubes with different inner diameters. In the existing paper tube cutting technology, the blade is stationary and the paper tube rotates at high speed during the support process. However, this utility model only uses several telescopic springs to squeeze the several inner clamping plates inside the paper tube. There is not enough friction and supporting force between the inner clamping plates and the inner wall surface of the paper tube. During the high-speed rotation of the paper tube, the contact surface between the paper tube and the inner clamping plates will slip, which greatly reduces the stability of the paper tube support. Utility Model Content

[0005] In order to overcome the deficiencies of the above-mentioned prior art, the utility model provides an inner and outer clamping support structure for paper tube cutting, so as to solve the problem that in the existing paper tube cutting technology proposed in the background technology, the blade is stationary and the paper tube rotates at high speed during the support process, but the utility model only uses a plurality of telescopic springs to squeeze a plurality of inner clamping plates to support the inside of the paper tube, and the inner clamping plates and the inner wall surface of the paper tube do not have sufficient friction and supporting force. During the high-speed rotation of the paper tube, the contact surface between the paper tube and the inner clamping plates will slip, thereby greatly reducing the stability of the paper tube support.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: an internal and external clamping support structure for paper tube cutting, comprising a base and a laterally rotatable support shaft above the base, the support shaft is hollow inside and has mirror-imaged inner support plates embedded at the top and bottom respectively, the support shaft is coaxially connected with a rotating shaft inside, the two inner support plates can be displaced relative and oppositely when the rotating shaft rotates forward and reversely, the two inner support plates are arc-shaped on the outside and the curvature is consistent with the support shaft, and a frosted surface is provided on the outer arc surface, and two liftable support rollers are also provided below the support shaft.

[0007] Preferably, a vertical support seat is fixed on one side of the top of the base, the support shaft is connected to the support seat bearing through one end, and a motor transmission-connected to the support shaft is fixed on the other side of the base.

[0008] Preferably, two relatively arranged fixing frames are fixed inside the support shaft, and the two fixing frames are located between two inner support plates. Both inner support plates are fixed with a plurality of guide rods inside, and each is plugged with the corresponding fixing frame through the plurality of guide rods.

[0009] Preferably, the two inner support plates are fixed with screw rods on opposite sides, the two screw rods are coaxial and respectively threadedly connected with threaded cylinders, the two threaded cylinders are respectively rotatably connected with two fixed frames, and driven bevel gears are coaxially fixed at opposite ends, a driving bevel gear is fixed on the periphery of the rotating shaft, and the driving bevel gear is meshed with the two driven bevel gears.

[0010] Preferably, one end of the support shaft away from the motor is rotatably connected to a knob, and the knob is coaxially fixed to the rotating shaft.

[0011] Preferably, a slide groove parallel to the support axis is provided on the top of the base, a sliding seat is provided above the base, a slider slidably connected to the slide groove is fixed to the bottom of the sliding seat, a lifting seat is connected to the top of the sliding seat via a number of springs, two U-shaped support rods are fixed on both sides of the lifting seat, and every two opposite U-shaped support rods are rotatably connected to a support roller.

[0012] Compared with the prior art, the beneficial effects that the utility model can achieve are: the utility model is provided with a rotatable support shaft, the interior of the support shaft is hollow and inner support plates are respectively embedded in the upper and lower parts, a coaxial rotating shaft is rotatably connected inside the support shaft, the rotating shaft is connected to a driving bevel gear, the upper and lower inner support plates are both fixed with screws on the inner surface, and are both connected to a threaded cylinder through a screw thread, the threaded cylinder is fixed with a driven bevel gear meshing with the driving bevel gear, when the rotating shaft rotates, the driving bevel gear rotates to drive the two meshing driven bevel gears to rotate, drive the two threaded cylinders to rotate, and then cause the two screws to move outward, so that the upper and lower inner support plates are displaced outward, to adapt to paper tubes with different inner diameters, compared with the spring support adaptation of the prior art, the inner support plate and the inner wall supporting force of the paper tube are greater, so that the installation stability of the paper tube is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a side schematic diagram of the utility model;

[0014] Figure 2 This is a cross-sectional view of the support shaft of the utility model;

[0015] Figure 3 It is a front schematic diagram of the utility model;

[0016] Among them: 1. Base; 2. Support seat; 3. Support shaft; 4. Motor; 5. Inner support plate; 6. Screw; 7. Guide rod; 8. Fixed frame; 9. Threaded cylinder; 10. Driven bevel gear; 11. Active bevel gear; 12. Rotating shaft; 13. Knob; 14. Slide groove; 15. Sliding block; 16. Sliding seat; 17. Spring; 18. Support roller; 19. Support rod; 20. Frosted surface; 21. Lifting seat. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model. The experimental methods in the following embodiments are conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified.

[0018] Embodiment:

[0019] like Figure 1-3As shown, the utility model provides an inner and outer clamping support structure for paper tube cutting, comprising a base 1 and a laterally rotatable support shaft 3 above the base 1, wherein the support shaft 3 is hollow inside and has mirror-image-arranged inner support plates 5 embedded at the top and bottom, respectively, and the support shaft 3 is coaxially rotatably connected with a rotating shaft 12 inside, and the rotating shaft 12 can make the two inner support plates 5 move relative and oppositely when rotating forward and reversely, and the outer surfaces of the two inner support plates 5 are arc-shaped and the arc is consistent with the support shaft 3, and a frosted surface 20 is provided on the outer arc surface, and two liftable support rollers 18 are also provided below the support shaft 3;

[0020] Among them, two inner support plates 5 can be picked out from the support shaft 3, and the inner and outer surfaces of the two inner support plates 5 are both arc-shaped surfaces. When the two inner support plates 5 are displaced in opposite directions, the outer diameter of the entire support shaft 3 can be increased. After restoration, they are integrated with the support shaft 3. The friction between the inner support plates 5 and the inner wall of the paper tube can be further increased through the frosted surface 20.

[0021] In this embodiment, specifically, a vertical support seat 2 is fixed to one side of the top of the base 1, the support shaft 3 is connected to the bearing of the support seat 2 through one end, and a motor 4 transmission-connected to the support shaft 3 is fixed to the other side of the base 1.

[0022] In this embodiment, specifically, two oppositely arranged fixing frames 8 are fixed inside the support shaft 3, and the two fixing frames 8 are located between the two inner support plates 5. The two inner support plates 5 are both fixed with a plurality of guide rods 7 inside, and each is plugged with the corresponding fixing frame 8 through the plurality of guide rods 7;

[0023] Among them, a plurality of guide rods 7 are used to ensure the displacement stability of the inner support plate 5 and to ensure that the screw rod 6 and the inner support plate 5 will not be driven to rotate when the threaded barrel 9 rotates.

[0024] In the present embodiment, specifically, the two inner support plates 5 are fixed with screw rods 6 on opposite sides, the two screw rods 6 are coaxial, and are respectively threadedly connected with threaded cylinders 9, the two threaded cylinders 9 are respectively rotatably connected with two fixed frames 8, and are coaxially fixed with driven bevel gears 10 at opposite ends, and a driving bevel gear 11 is fixed to the periphery of the rotating shaft 12, and the driving bevel gear 11 is meshed with the two driven bevel gears 10.

[0025] In this embodiment, specifically, the end of the support shaft 3 away from the motor 4 is rotatably connected to a knob 13, and the knob 13 is coaxially fixed with the rotating shaft 12;

[0026] The rotating shaft 12 can be directly rotated by the knob 13 to adjust the relative or opposite displacement of the two inner support plates 5 so that the two inner support plates 5 are firmly supported on the inner wall of the paper tube.

[0027] In this embodiment, specifically, a slide groove 14 parallel to the support shaft 3 is opened on the top of the base 1, a sliding seat 16 is provided above the base 1, a slider 15 slidably connected to the slide groove 14 is fixed at the bottom of the sliding seat 16, a lifting seat 21 is connected to the top of the sliding seat 16 through a plurality of springs 17, two U-shaped support rods 19 are fixed on both sides of the lifting seat 21, and every two opposite U-shaped support rods 19 are rotatably connected to a support roller 18;

[0028] The spring 17 between the sliding seat 16 and the lifting seat 21 is self-guided to ensure the lifting stability of the lifting seat 21 .

[0029] Working principle: When using, hold the paper tube, press down one end of the paper tube on the two support rollers 18, and put it on the surface of the support shaft 3, turn the knob 13, the knob 13 drives the rotating shaft 12 to rotate, the rotating shaft 12 drives the active bevel gear 11 to rotate, the active bevel gear 11 drives the two driven bevel gears 10 to rotate, the two driven bevel gears 10 drive the two threaded cylinders 9 to rotate, the two threaded cylinders 9 drive the two threaded screws 6 to rotate, the two screws 6 move in opposite directions and drive the two inner support plates 5 to move in opposite directions under the guidance of the guide rod 7, after the two inner support plates 5 move in opposite directions, the outer diameter of the support shaft 3 can be increased until the two inner The support plate 5 is stably supported on the inner wall surface of the paper tube. At this time, the two inner support plates 5 support the inside of the paper tube, and the two support rollers 18 support the outside of the paper tube, so as to achieve the effect of internal and external clamping, and the two support rollers 18 are located above the lifting seat 21. The spring 17 below the lifting seat 21 can be extended and retracted according to the thickness and diameter of the paper tube to change the height of the support roller 18. The position of the support roller 18 can be changed by sliding the sliding seat 16. When supporting, try to keep the support roller 18 at the center of the outside of the paper tube. Start the motor 4 to drive the support shaft 3 to rotate. After the paper tube is driven to rotate, the paper tube can be cut by a stationary blade.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An inner and outer clamping support structure for paper tube cutting, comprising a base (1) and a support shaft (3) above the base (1) which can rotate laterally, characterized in that: The support shaft (3) is hollow inside and has mirror-image inner support plates (5) embedded at the top and bottom respectively. The support shaft (3) is coaxially rotatably connected with a rotating shaft (12). When the rotating shaft (12) rotates forward and reversely, the two inner support plates (5) can be displaced relative to and in opposite directions. The outer surfaces of the two inner support plates (5) are arc-shaped and the arc is consistent with that of the support shaft (3). A frosted surface (20) is provided on the outer arc surface. Two liftable support rollers (18) are also provided below the support shaft (3).

2. The inner and outer clamping support structure for paper tube cutting according to claim 1, characterized in that: A vertical support seat (2) is fixed on one side of the top of the base (1); the support shaft (3) is connected to the bearing of the support seat (2) via one end; and a motor (4) drivingly connected to the support shaft (3) is fixed on the other side of the base (1).

3. The inner and outer clamping support structure for paper tube cutting according to claim 1, characterized in that: Two oppositely arranged fixing frames (8) are fixed inside the support shaft (3), and the two fixing frames (8) are located between the two inner support plates (5). A plurality of guide rods (7) are fixed inside the two inner support plates (5), and each of the two inner support plates (5) is plugged into the corresponding fixing frame (8) through the plurality of guide rods (7).

4. The inner and outer clamping support structure for paper tube cutting according to claim 1, characterized in that: The two inner support plates (5) are both fixed with screw rods (6) on opposite sides, the two screw rods (6) are coaxial and respectively threadedly connected with threaded cylinders (9), the two threaded cylinders (9) are respectively rotatably connected with two fixing frames (8), and are coaxially fixed with driven bevel gears (10) on opposite ends, and a driving bevel gear (11) is fixed on the periphery of the rotating shaft (12), and the driving bevel gear (11) is meshed with the two driven bevel gears (10).

5. The inner and outer clamping support structure for paper tube cutting according to claim 1, characterized in that: One end of the support shaft (3) away from the motor (4) is rotatably connected to a knob (13), and the knob (13) is coaxially fixed to the rotating shaft (12).

6. The inner and outer clamping support structure for paper tube cutting according to claim 1, characterized in that: The top of the base (1) is provided with a slide groove (14) parallel to the support shaft (3); a sliding seat (16) is provided above the base (1); a slider (15) slidably connected to the slide groove (14) is fixed at the bottom of the sliding seat (16); the top of the sliding seat (16) is connected to a lifting seat (21) via a plurality of springs (17); two U-shaped support rods (19) are fixed on both sides of the lifting seat (21), and each two opposite U-shaped support rods (19) are rotatably connected to a support roller (18).

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