A core fixing device for a rodless paper tube cutting machine

Abstract

The application relates to the technical field and discloses a core fixing device of a rodless paper tube cutting machine, which comprises a mounting pipe, the inside of the mounting pipe is filled with a coil, the inside of the mounting pipe is suspended with an iron core, and an inner support is fixedly arranged outside the iron core. Compared with a traditional rod paper tube inner support, the core fixing device of the rodless paper tube cutting machine replaces the rod support inner support by a magnetic suspension mode, thereby avoiding the limitation of the length of the inner support rod, further saving a large amount of processing space, making the cutting operation more convenient, and making the overall length of the paper tube cutting machine almost halved, reducing the length of the equipment occupying the factory building, through the setting of a pre-fixed clamping seat and a mounting plate outside the fixing device, corresponding inlaying is realized, meanwhile, the extension of the clamping rods in four directions of the mounting plate is driven by rotating rods, single-point driving multi-point fixing can be realized, the workload caused by the dismounting after the mounting of multiple bolts is saved, and the mounting and dismounting of the fixing device are convenient.

Description

Technical Field

[0001] This invention relates to the field of rodless paper tube processing technology, specifically to a core-cutting fixing device for a rodless paper tube cutting machine. Background Technology

[0002] Rodless paper tubes are tubular objects made from paper. Most paper tubes are spiral paper tubes or seamless paper tubes.

[0003] Because paper tubes are relatively soft, cutting them with a blade can cause the tube wall to dent inwards, resulting in rough edges and defective products. Therefore, a metal inner support needs to be placed inside the paper tube at the cutting point to prevent the tube wall from denting inwards. Traditional inner supports have a handle for support. If cutting longer paper tubes, the handle needs to be made very long and built into the paper tube, which makes operation inconvenient and the overall cutting equipment longer. For the above reasons, a long factory is needed to process long paper tubes, which is very inconvenient. Based on the above problems, a rodless paper tube cutting core fixing device is proposed to solve the above problems. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a core-fixing device for a rodless paper tube cutter, which is convenient to use, reduces the space requirements of the processing area, and is easy to operate. It solves the problem that traditional rod-supported paper tube cutting requires a large processing space, which complicates the cutting operation.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a core fixing device for a rodless paper tube cutter, comprising an installation tube, wherein the interior of the installation tube is filled with a coil wound thereon, an iron core is suspended inside the installation tube, an inner support is fixedly installed outside the iron core, a fixing bracket is fixedly installed outside the installation tube, and a fixing component is provided at the bottom end of the fixing bracket;

[0008] The fixing assembly includes a mounting plate fixedly installed at the bottom of the fixing bracket. A rotating rod extending through and above the fixing bracket is rotatably installed inside the mounting plate. A guide cylinder is fixedly installed inside the mounting plate. A locking rod is slidably installed inside the guide cylinder. A turntable located inside the mounting plate is fixedly installed outside the rotating rod. A traction ear is fixedly installed outside the turntable. A sliding rod is fixedly installed on the locking rod and is movably connected to the traction ear. A locking seat is snapped onto the outside of the mounting plate. An insertion hole corresponding to the guide cylinder is opened on the inner side wall of the locking seat.

[0009] Preferably, the mounting tube is annular and hollow inside, and the diameter of the iron core is the same as the diameter of the inner support.

[0010] Preferably, the fixing bracket is fixedly installed on the outside of the mounting tube in a U-shaped thread, and a gap is left between the inner wall of the fixing bracket and the mounting tube.

[0011] Preferably, the rotating rod is externally fixed with a nut that facilitates rotation and adjustment.

[0012] Preferably, the end of the traction ear is provided with a capsule-shaped groove, and the slide rod is slidably connected to the groove.

[0013] Preferably, there are four traction ears and four guide cylinders, which are arranged inside the mounting plate in a continuous 90-degree rotation with the rotating rod as the center point.

[0014] Preferably, the outer wall of the mounting plate has a through hole corresponding to the insertion hole, and the locking rod is slidably connected to the through hole and locked into the insertion hole.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a core fixing device for a rodless paper tube cutter, which has the following beneficial effects:

[0017] 1. Compared with the traditional rod-supported paper tube internal support, the rodless paper tube cutting core fixing device replaces the rod-supported internal support with magnetic levitation, thereby eliminating the limitation on the length of the internal support rod, further saving a lot of processing space, making the cutting operation more convenient, and reducing the overall length of the paper tube cutting machine by almost half, reducing the length of the factory space occupied by the equipment.

[0018] 2. The core-cutting fixing device of this rodless paper tube cutter uses a pre-fixed bracket and an external mounting plate that are correspondingly embedded. At the same time, the rotating rod drives the extension of the brackets in four directions of the mounting plate, which can achieve multi-point fixing from a single point. This saves the workload of disassembling after installing and fixing with multiple bolts, making the installation and disassembly of the fixing device convenient. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the core-fixing device for a rodless paper tube cutter proposed in this invention;

[0020] Figure 2 This is a front view of a core-fixing device for a rodless paper tube cutter proposed in this invention;

[0021] Figure 3 This is a top view of the mounting plate in the core-cutting fixing device of a rodless paper tube cutter proposed in this invention.

[0022] In the diagram: 1. Mounting tube; 2. Fixing bracket; 3. Coil; 4. Iron core; 5. Inner support; 6. Mounting plate; 7. Rotating rod; 8. Nut; 9. Turntable; 10. Traction ear; 11. Guide tube; 12. Locking rod; 13. Sliding rod; 14. Sliding groove; 15. Through hole; 16. Locking seat; 17. Insertion hole. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figure 1 A core-fixing device for a rodless paper tube cutter includes an installation tube 1, which is circular and hollow inside. The inside of the installation tube 1 is filled with a coil 3, and an iron core 4 is suspended inside the installation tube 1. An inner support 5 is fixedly installed on the outside of the iron core 4.

[0025] The diameter of the iron core 4 is the same as the diameter of the inner support 5. The iron core 4 is used to provide suspension support for the paper tube. At the same time, the inner support 5, which is fixedly installed on the iron core 4 and extends to one side, can provide the cutting point of the paper tube and avoid the paper tube from being recessed inward when it is cut.

[0026] In one embodiment, the core offset distance d and the core restoring force data are:

[0027] d(mm) Force on the iron core (N) 0 0 5 34 10 61 15 78 20 86

[0028] The table above shows the force data when the current is 4A and the power is 120W.

[0029] Please see Figure 2-3 A fixing bracket 2 is fixedly installed on the outside of the mounting pipe 1. The fixing bracket 2 is fixedly installed on the outside of the mounting pipe 1 in a U-shaped thread to provide installation support for the mounting pipe 1 on the equipment. There is a gap between the inner wall of the fixing bracket 2 and the mounting pipe 1 to provide a stable adjustment space for the fixing bracket 2. A fixing component is provided at the bottom of the fixing bracket 2, which can reduce the number of bolts used for the fixing bracket 2, thereby facilitating the installation and disassembly of the fixing bracket 2.

[0030] In this embodiment, the fixing component includes a mounting plate 6 fixedly installed at the bottom of the fixing bracket 2. A rotating rod 7 extending through and above the fixing bracket 2 is rotatably installed inside the mounting plate 6. A nut 8 for easy rotation and adjustment is fixedly installed outside the rotating rod 7. A guide cylinder 11 is fixedly installed inside the mounting plate 6. A locking rod 12 is slidably installed inside the guide cylinder 11. A turntable 9 located inside the mounting plate 6 is fixedly installed outside the rotating rod 7. A traction ear 10 is fixedly installed outside the turntable 9. A sliding rod 13 is fixedly installed on the locking rod 12 and is movably connected to the traction ear 10.

[0031] It should be noted that the end of the traction ear 10 is provided with a capsule-shaped groove 14, and the slide rod 13 is slidably connected to the groove 14, which can provide traction for the slide rod 13 to move and push the locking rod 12 to slide.

[0032] In addition, there are four traction ears 10 and four guide cylinders 11. The four guide cylinders 11 are arranged inside the mounting plate 6 with the rotating rod 7 as the center point and rotated continuously by ninety degrees. They are used to provide sliding guidance for the clamping rod 12 facing different directions.

[0033] The mounting plate 6 is externally attached to a mounting base 16. The inner side wall of the mounting base 16 is provided with an insertion hole 17 corresponding to the guide cylinder 11. The outer side wall of the mounting plate 6 is provided with a through hole 15 corresponding to the insertion hole 17. The locking rod 12 is slidably connected to the through hole 15 and locked in the insertion hole 17. The through hole 15 can provide support for the sliding extension of the locking rod 12, so that the locking rod 12 can extend to the outside of the mounting plate 6 and lock in the insertion hole 17.

[0034] In use, energizing the coil 3 inside the mounting tube 1 generates a magnetic field. The iron core 4, under electromagnetic force, is bound to the center of the coil, located in the middle of the annular mounting tube 1. At this time, the inner support 5 is supported by the iron core 4, allowing the paper tube to pass through both the iron core 4 and the inner support 5. This eliminates the need for a long rod to support the inner support 5, and multiple sets of this device can be used to provide multi-point support for long paper tubes. Furthermore, when a fixing device is needed, the fixing bracket 2 at the bottom of the mounting tube 1 aligns with the pre-fixed clamp 16, allowing the fixing bracket 2... The mounting plate 6 at the bottom is placed inside the card holder 16. The nut 8 is rotated by the side of the fixed bracket 2, which causes the nut 8 to drive the rotating rod 7 to rotate. The rotating rod 7 drives the turntable 9 to rotate. Under the rotation of the turntable 9, the four traction ears 10 rotate. Through the rotation of the slide groove 14, the slide rod 13 located inside the slide groove 14 is pulled. Under the guidance of the guide cylinder 11, it extends in four directions to the outside of the mounting plate 6 and is locked into the insertion hole 17. This completes the installation method of single-point drive and multi-point fixation, reducing the amount of bolts used and making disassembly more convenient.

[0035] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A core fixing device for a coreless paper tube cutting machine, comprising a mounting tube (1), characterized in that: The inside of the installation pipe (1) is filled with coils (3) and suspends an iron core (4), the outside of the iron core (4) is fixedly installed with an inner support (5), the outside of the installation pipe (1) is fixedly installed with a fixed support (2), and the bottom end of the fixed support (2) is provided with a fixed assembly; The fixed assembly comprises an installation plate (6) fixedly installed at the bottom of the fixed support (2), a rotating rod (7) rotatably installed in the inside of the installation plate (6) and extending through to above the fixed support (2), a guide cylinder (11) fixedly installed in the inside of the installation plate (6), a clamping rod (12) slidably installed in the inside of the guide cylinder (11), a rotating disc (9) fixedly installed outside the rotating rod (7) and located in the inside of the installation plate (6), a traction lug (10) fixedly installed outside the rotating disc (9), a sliding rod (13) fixedly installed on the clamping rod (12) and movably connected to the traction lug (10), and a clamping seat (16) clamped outside the installation plate (6), wherein an insertion hole (17) corresponding to the guide cylinder (11) is formed in the inner side wall of the clamping seat (16). An end of the traction lug (10) is provided with a capsule-shaped sliding groove (14), the sliding rod (13) is slidably connected to the sliding groove (14), a through hole (15) corresponding to the insertion hole (17) is formed in the outer side wall of the installation plate (6), and the clamping rod (12) is slidably connected to the through hole (15) and clamped in the insertion hole (17).

2. A core holding device for a coreless tube cutting machine as defined in claim 1, characterized in that: The installation pipe (1) is circular and hollow, and the diameter of the iron core (4) is the same as that of the inner support (5).

3. A core holding device for a coreless tube cutting machine as defined in claim 1, wherein: The fixed support (2) is U-shaped and screw-fixedly installed outside the installation pipe (1), and a spacing is left between the inner wall of the fixed support (2) and the installation pipe (1).

4. A core holding device for a coreless tube cutting machine as defined in claim 1, wherein: A nut (8) facilitating rotation adjustment is fixedly installed outside the rotating rod (7).

5. A core holding device for a coreless tube cutting machine as defined in claim 1, wherein: The number of the traction lug (10) and the guide cylinder (11) is four, and the four guide cylinders (11) are rotationally arranged in the inside of the installation plate (6) at a central point of the rotating rod (7) and by 90 degrees.

Images