Adjustable paper tube cutting machine
By designing an adjustable paper tube cutting machine, and utilizing a slide bar, drive arm, and limiting device, the problem of fixing paper tubes with different inner diameters during cutting was solved, achieving a flat cutting surface and precise cutting.
Patent Information
- Application Number
- CN202520198037.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-08
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-08
AI Technical Summary
Existing paper tube cutting machines cannot effectively fix paper tubes of different inner diameters, resulting in uneven cut surfaces.
An adjustable paper tube cutting machine was designed. Through the combination of slide bar, drive arm, cutting seat, limiting device and cutting blade, it can achieve stable fixation and precise cutting of paper tubes with different inner diameters.
It achieves automatic limit adjustment based on the inner diameter of the paper tube, ensuring a flat cutting surface and improving cutting accuracy and stability.
Smart Images

Figure CN223763337U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of paper tube cutting machine technology, specifically an adjustable paper tube cutting machine. Background Technology
[0002] Paper tubes are tubular objects made from paper. Most paper tubes are spiral paper tubes or seamless paper tubes, and they are widely used. After the paper tubes are manufactured, they need to be cut to the required length, so a paper tube cutting machine is required.
[0003] However, some paper tube cutting machines are not convenient to fix according to paper tubes of different inner diameters, which can easily cause the paper tube to shake during cutting, resulting in an uneven cut surface. Therefore, they do not meet the existing needs. In response, we have proposed an adjustable paper tube cutting machine. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide an adjustable paper tube cutting machine. The technical solution of this utility model is as follows:
[0005] An adjustable paper tube cutting machine includes a worktable and a cutting seat. A support platform is fixedly provided on the upper end of the worktable. Slide rods are fixedly connected to both sides of the upper end of the support platform. Both sides of the bottom end of the cutting seat are slidably connected to the outer surface of the slide rods by sliders. One side of the cutting seat is driven by a drive arm. A through hole is provided on the side of the cutting seat near the bottom end. A support plate is fixedly connected to the upper end of the worktable and on the side of the support platform. A limiting device is movably provided on the side of the support plate near the cutting seat.
[0006] Preferably, a connecting seat is connected to one side of the cutting seat and above the through hole via a cylinder drive, and a cutting blade is connected to the bottom of the connecting seat via a motor drive.
[0007] Preferably, the limiting device includes a fixed base, which is fixedly connected to one side of the support plate and is circular in shape. The outer surface of the fixed base is provided with four sets of storage slots, and each set of storage slots is slidably connected to an inner clamping plate that extends through to the outside of the storage slot.
[0008] Preferably, a disc is rotatably connected to the side of the fixed base away from the support plate via a rotating shaft. The surface of the disc is provided with four sets of limiting grooves, and the limiting grooves are all inclined outwards. The side of the four sets of inner clamping plates near the inside is fixedly connected with a limiting rod, and the limiting rod is slidably connected through the inside of the limiting groove.
[0009] Preferably, the rotating shaft on one side of the disk passes through the fixed base and the support plate in sequence, extends to the outside of the support plate, and is fixedly connected to a gear. Above the gear and on the outer surface of the support plate, a fixed block is fixedly connected.
[0010] Preferably, a movable groove is provided inside the bottom end of the fixed block, and a connecting rod extending through to the outside of the fixed block is movably connected inside the movable groove. A limiting plate is fixedly connected to the outer surface of one end of the connecting rod inside the movable groove. A spring is fixedly connected between one side of the limiting plate and the top end inside the movable groove, and the spring is wrapped around the outer surface of the connecting rod.
[0011] Preferably, a limiting block is fixedly connected to the bottom end of the connecting rod, and the limiting block is movably engaged with the outer surface of the gear.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This utility model involves starting the drive arm according to the length of the paper tube, causing the cutting seat to slide along the outer surface of the slide bar, then passing one end of the paper tube through the through hole and clamping one end of the paper tube onto the outer surface of the fixed seat, and then rotating the gear. As the gear rotates, it drives the disc to rotate through the rotating shaft. When the disc rotates, the limiting rod slides outward along the limiting groove, thereby causing the inner clamping plate to expand outward, thus clamping and fixing one end of the paper tube according to the inner diameter of the paper tube.
[0014] 2. This utility model involves pulling the connecting rod, causing the connecting rod to slide the limiting plate along the inside of the movable groove, compressing the spring, and thus causing the limiting block to disengage from the gear, thereby releasing the gear from its limiting position. Subsequently, the gear can be rotated to move the limiting device, releasing the pulling of the connecting rod, causing the spring to release its elastic force, and pushing the limiting block to engage with the gear's tooth groove, thereby restricting the gear from rotating the limiting device. Then, the cylinder is activated to push the connecting seat and the cutting blade downwards, while the motor is activated to drive the cutting blade to rotate, thereby cutting the paper tube. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a side view of the entire utility model;
[0017] Figure 3 This is a schematic diagram of the limiting device of this utility model;
[0018] Figure 4 This utility model Figure 2 A schematic diagram of the structure at point A in the middle.
[0019] In the diagram: 1. Workbench; 2. Support platform; 3. Slide rod; 4. Cutting seat; 401. Through hole; 5. Drive arm; 6. Cylinder; 7. Connecting seat; 8. Motor; 9. Cutting blade; 10. Support plate; 11. Limiting device; 1101. Fixed seat; 110101. Storage slot; 1102. Disc; 110201. Limiting slot; 1103. Inner clamping plate; 1104. Limiting rod; 12. Gear; 13. Fixed block; 1301. Movable slot; 14. Connecting rod; 15. Limiting plate; 16. Spring; 17. Limiting block. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] like Figure 1 As shown, one embodiment of this utility model is an adjustable paper tube cutting machine, including a worktable 1 and a cutting seat 4. A support platform 2 is fixedly provided on the upper end of the worktable 1. Slide rods 3 are fixedly connected to both sides of the upper end of the support platform 2. Both sides of the bottom end of the cutting seat 4 are slidably connected to the outer surface of the slide rods 3 by sliders. One side of the cutting seat 4 is driven and connected by a drive arm 5. A through hole 401 is opened on the side of the cutting seat 4 near the bottom end. A support plate 10 is fixedly connected to the upper end of the worktable 1 and on the side of the support platform 2. A limiting device 11 is movably provided on the side of the support plate 10 near the cutting seat 4.
[0022] As a preferred technical solution in this embodiment, such as Figure 1 and Figure 3 As shown, the limiting device 11 includes a fixed base 1101, which is fixedly connected to one side of the support plate 10. The fixed base 1101 is circular, and four sets of storage slots 110101 are formed on the outer surface of the fixed base 1101. Each set of storage slots 110101 has an inner clamping plate 1103 that extends through to the outside of the storage slot 110101 and is slidably connected to the inside of the storage slot 110101. A disc 1102 is rotatably connected to the side of the fixed base 1101 away from the support plate 10 via a rotating shaft. Four sets of storage slots 1102 are formed on the surface of the disc 1102. The limiting groove 110201 is inclined outward. The four sets of inner clamping plates 1103 are fixedly connected to the limiting rod 1104 on the side near the inside. The limiting rod 1104 is slidably connected through the inside of the limiting groove 110201. The rotating shaft on one side of the disc 1102 passes through the fixed seat 1101 and the support plate 10 in sequence, and extends to the outside of the support plate 10. A gear 12 is fixedly connected thereto. A fixing block 13 is fixedly connected above the gear 12 and on the outer surface of the support plate 10.
[0023] In this embodiment, one end of the paper tube is passed through the through hole 401 and the other end of the paper tube is clamped to the outer surface of the fixing base 1101. Then, the gear 12 is rotated. While the gear 12 is rotating, it drives the disc 1102 to rotate through the rotating shaft. When the disc 1102 rotates, the limiting rod 1104 slides outward along the limiting groove 110101, thereby driving the inner clamping plate 1103 to expand outward, thereby clamping and fixing one end of the paper tube according to the inner diameter of the paper tube.
[0024] As a preferred technical solution in this embodiment, such as Figure 2 and Figure 4 As shown, a movable groove 1301 is provided inside the bottom end of the fixed block 13. A connecting rod 14 extending through to the outside of the fixed block 13 is movably connected inside the movable groove 1301. A limiting plate 15 is fixedly connected to the outer surface of one end of the connecting rod 14 inside the movable groove 1301. A spring 16 is fixedly connected between one side of the limiting plate 15 and the top end inside the movable groove 1301. The spring 16 is wrapped around the outer surface of the connecting rod 14. A limiting block 17 is fixedly connected to the bottom end of the connecting rod 14. The limiting block 17 is movably engaged with the outer surface of the gear 12.
[0025] In this embodiment, pulling the connecting rod 14 causes the limiting plate 15 to slide along the inside of the movable groove 1301, compressing the spring 16 and causing the limiting block 17 to disengage from the gear 12, thereby releasing the limitation on the gear 12. Subsequently, the rotatable gear 12 drives the limiting device to move, releasing the pull on the connecting rod 14, causing the spring 16 to release its elastic force, and pushing the limiting block 17 to engage with the tooth groove of the gear 12, thereby restricting the rotation of the gear 12.
[0026] As a preferred technical solution in this embodiment, such as Figure 1 As shown, a connecting seat 7 is connected to one side of the cutting seat 4 and above the through hole 401 via a cylinder 6. The bottom of the connecting seat 7 is connected to a cutting blade 9 via a motor 8. The cylinder 6 pushes the connecting seat 7 and the cutting blade 9 downward, while the motor 8 is started to drive the cutting blade 9 to rotate, thereby cutting the paper tube.
[0027] Working principle: Based on the length of the paper tube, the drive arm 5 is activated to drive the cutting seat 4 to slide along the outer surface of the slide bar 3. Then, one end of the paper tube passes through the through hole 401 and is clamped to the outer surface of the fixed seat 1101. At this time, the connecting rod 14 is pulled, causing the connecting rod 14 to drive the limiting plate 15 to slide along the inside of the movable groove 1301 and compress the spring 16, thereby driving the limiting block 17 to disengage from the gear 12, thus releasing the limitation on the gear 12. Subsequently, the gear 12 can be driven to rotate. While the gear 12 is rotating, the disc 1102 is driven to rotate through the rotating shaft. When the disc 1102 rotates, the limiting rod 1104 slides outward along the limiting groove 110101, thereby driving the inner clamping plate 1103 to expand outward, thus clamping and fixing one end of the paper tube according to the inner diameter of the paper tube.
[0028] After the paper tube is clamped and fixed, the pull on the connecting rod 14 is released, so that the spring 16 releases its elastic force and pushes the limiting block 17 to engage with the tooth groove of the gear 12, thereby restricting the rotation of the gear 12. Then, the cylinder 6 is started to push the connecting seat 7 and the cutting blade 9 to move down, and at the same time, the motor 8 is started to drive the cutting blade 9 to rotate, thereby cutting the paper tube.
[0029] 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 paper tube cutting machine comprising a worktable (1) and a cutting seat (4), characterized in that: The upper end of the workbench (1) is fixedly provided with a supporting table (2), both sides of the upper end of the supporting table (2) are fixedly connected with sliding rods (3), both sides of the bottom end of the cutting seat (4) are slidably connected to the outer surfaces of the sliding rods (3), and one side of the cutting seat (4) is drivenly connected through a driving arm (5); a through hole (401) is formed in the side of the cutting seat (4) close to the bottom end; and the upper end of the workbench (1) and one side of the supporting table (2) are fixedly connected with a supporting plate (10).
2. An adjustable paper tube cutting machine according to claim 1, characterized in that: One side of the cutting seat (4) and above the through hole (401) are drivenly connected with a connecting seat (7) through a gas cylinder (6); and the cutting knife (9) is drivenly connected to the bottom end of the inner part of the connecting seat (7) through a motor (8).
3. An adjustable paper tube cutting machine according to claim 1, characterized in that: The limiting device (11) comprises a fixed seat (1101), which is fixedly connected to one side of the supporting plate (10) and circularly arranged; four groups of receiving grooves (110101) are formed in the outer surface of the fixed seat (1101); and the inner clamping plates (1103) are slidably connected to the inner part of each group of the receiving grooves (110101) and extend to the outside of the receiving grooves (110101).
4. An adjustable paper tube cutting machine according to claim 3, characterized in that: A disc (1102) is rotatably connected to the side of the fixed seat (1101) away from the supporting plate (10) through a rotating shaft; four groups of limiting grooves (110201) are formed in the surface of the disc (1102) and are outwardly and obliquely arranged; the limiting rods (1104) are fixedly connected to the inner sides of the four groups of the inner clamping plates (1103); and the limiting rods (1104) extend to the inner part of the limiting grooves (110201) through sliding connection.
5. An adjustable paper tube cutting machine according to claim 4, characterized in that: The rotating shaft of the side of the disc (1102) extends to the outside of the supporting plate (10) through the fixed seat (1101) and the supporting plate (10) in sequence and is fixedly connected with a gear (12); and a fixed block (13) is fixedly connected to the upper part of the gear (12) and the outer surface of the supporting plate (10).
6. An adjustable paper tube cutting machine according to claim 5, characterized in that: An active groove (1301) is formed in the inner part of the bottom end of the fixed block (13); the connecting rod (14) is movably connected to the inner part of the active groove (1301) and extends to the outside of the fixed block (13); the limiting plate (15) is fixedly connected to the outer surface of one end of the connecting rod (14) in the inner part of the active groove (1301); the spring (16) is fixedly connected between the top end of the inner part of the active groove (1301) and the side above the limiting plate (15) and is wound on the outer surface of the connecting rod (14).
7. An adjustable paper tube cutting machine according to claim 6, characterized in that: The limiting block (17) is fixedly connected to the bottom end of the connecting rod (14) and is movably connected to the outer surface of the gear (12).