Anti-return mechanism of bobbin paper rewinding machine

Abstract

The utility model discloses an anti-return mechanism of a bobbin paper rewinding machine, which relates to the field of rewinding machines and comprises a rewinding machine shell, a movable shaft, a compression roller and a driving component, the rear end of the movable shaft is rotatably mounted on the rewinding machine shell, a roller body and two supporting arms are sleeved on the movable shaft, and the two supporting arms are respectively arranged on the front side and the rear side of the roller body; the back faces of the two supporting arms are respectively provided with a detachable sealing cover, the sealing covers are arranged on the movable shaft in a sleeved mode, the bottom of any sealing cover is provided with a swing rod, and the upper end of each supporting arm is provided with a sliding groove. And the paper is clamped between the paper guide roller and the pressing roller, so that the paper is prevented from returning while the tension of the paper is ensured.

Description

Technical Field

[0001] The utility model belongs to the field of rewinding machines, and in particular relates to an anti-backward mechanism of a coil paper rewinding machine. Background Art

[0002] During the cigarette manufacturing process, rewinding machines are used to cut and rewind large rolls of paper (often called parent rolls) into smaller rolls.

[0003] After the rewinder completes the paper slitting, paper retraction is a common problem. Therefore, after the paper is cut, a worker is required to pull the paper to ensure the tension of the paper and prevent the paper from retracting, so as to facilitate the subsequent rewinding of the paper.

[0004] Manually pulling the paper not only makes it difficult to control the tension of the paper (too little tension may cause the paper to loosen, while too much tension may cause the paper to overstretch), but also increases the use of labor.

[0005] Therefore, we propose an anti-backward mechanism for a paper rewinder to solve the above problems. Utility Model Content

[0006] Aiming at the problem that it is not only difficult to control the tension of the paper when pulling the paper manually, but also the use of labor is increased, the utility model provides an anti-backward mechanism for a paper rewinding machine.

[0007] The utility model solves the technical problem by adopting a solution: a paper rewinding machine anti-backward mechanism, comprising a rewinding machine housing, a movable shaft, a pressure roller and a driving assembly, wherein the rear end of the movable shaft is rotatably mounted on the rewinding machine housing, and a roller body and two support arms are mounted on the movable shaft, and the two support arms are respectively arranged on the front and rear sides of the roller body;

[0008] Removable covers are respectively installed on the opposite backs of the two support arms, and the covers are sleeved on the movable shafts. A swing rod is installed at the bottom of any of the covers;

[0009] A slide groove is provided at the upper end of the support arm;

[0010] The pressure roller is arranged between the two support arms, and threaded shafts are respectively installed at the front and rear ends of the pressure roller, and the threaded ends of the threaded shafts pass through the slide grooves and are threadedly connected with nuts;

[0011] The driving assembly is installed between the rewinding machine housing and the swing rod, and can drive the swing rod to swing.

[0012] Preferably, a mounting rod is welded on the rewinder housing, and a connecting rod is welded on the rocker arm.

[0013] Preferably, the driving assembly is a spring installed between the connecting rod and the mounting rod.

[0014] Preferably, the driving assembly is a hydraulic rod or an electric cylinder hingedly mounted between the connecting rod and the mounting rod.

[0015] Preferably, it also includes a fixing ring, a pull rope and a fixing rod welded on the rewinding machine housing, the front end of the fixing rod is welded with a hanging ring, the fixing ring is installed on the upper end of any one of the support arms, one end of the pull rope is connected to the fixing ring, and the other end is connected to a spring buckle, and the spring buckle is adapted to the hanging ring.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model drives the swing rod through the driving assembly, and then makes the two support arms swing upward, and makes the pressure roller contact with the paper, clamping the paper between the paper guide roller and the pressure roller, while ensuring the tension of the paper, preventing the paper from retreating.

[0018] 2. The utility model separates the nut from the threaded shaft by rotating the nut in the reverse direction, and then can adjust the pressure roller to a suitable position according to the position of the paper guide roller, so that the pressure roller and the paper guide roller are adapted to clamp the paper.

[0019] 3. The utility model connects the spring buckle with the hanging ring, and then the pull rope continuously pulls the support arm, so that the pressure roller is away from the paper guide roller, so that the rewinder can rewind the paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0021] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0022] Figure 3 It is a schematic diagram of the enlarged structure of the pressure roller of the utility model when viewed from top.

[0023] In the figure: 1 rewinder housing, 21 cover, 22 support arm, 23 pressure roller, 24 threaded shaft, 25 nut, 26 roller body, 27 movable shaft, 31 swing rod, 32 connecting rod, 33 spring, 34 mounting rod, 41 fixing ring, 42 pull rope, 43 spring buckle, 44 fixing rod, 45 hanging ring. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] See also Figure 1-3 The utility model provides a technical solution for an anti-retraction mechanism of a paper rewinding machine:

[0026] Embodiment 1:

[0027] according to Figure 1-3As shown, it includes a rewinder housing 1, a movable shaft 27, a pressure roller 23 and a driving assembly. A mounting rod 34 is welded on the rewinder housing 1, and the rear end of the movable shaft 27 is rotatably mounted on the rewinder housing 1, so that the movable shaft 27 can rotate stably.

[0028] A roller body 26 and two support arms 22 are mounted on the movable shaft 27 . The two support arms 22 are respectively arranged on the front and rear sides of the roller body 26 .

[0029] Removable covers 21 are respectively installed on the opposite back sides of the two support arms 22 . The covers 21 are sleeved on the movable shaft 27 . A swing rod 31 is installed at the bottom of any of the covers 21 , and a connecting rod 32 is welded on the swing rod 31 .

[0030] A slide groove is provided at the upper end of the support arm 22, and the pressure roller 23 is arranged between the two support arms 22. A threaded shaft 24 is installed at the front and rear ends thereof respectively. The threaded end of the threaded shaft 24 passes through the slide groove and is threadedly connected with a nut 25. By rotating the nut 25 in the opposite direction, the nut 25 is separated from the threaded shaft 24, and then the pressure roller 23 can be adjusted to a suitable position according to the position of the paper guide roller, so that the pressure roller 23 is adapted to the paper guide roller to facilitate clamping of the paper.

[0031] The driving component is a spring 33 installed between the connecting rod 32 and the mounting rod 34. Relying on the elastic force of the spring 33, the swing rod 31 is driven, and then the two support arms 22 are swung upward, and the pressure roller 23 is brought into contact with the paper, and the paper is clamped between the paper guide roller and the pressure roller 23, while ensuring the tension of the paper, preventing the paper from retreating.

[0032] It also includes a fixing ring 41, a pull rope 42 and a fixing rod 44 welded on the rewinder housing 1, a hanging ring 45 is welded on the front end of the fixing rod 44, the fixing ring 41 is installed on the upper end of any support arm 22, one end of the pull rope 42 is connected to the fixing ring 41, and the other end is connected to a spring buckle 43, the spring buckle 43 is adapted to the hanging ring 45, by connecting the spring buckle 43 to the hanging ring 45, the pull rope 42 continues to pull the support arm 22, so that the pressure roller 23 is away from the paper guide roller, so that the rewinder can rewind the paper.

[0033] When used specifically, the utility model is a paper rewinding machine anti-backward mechanism. First, the spring buckle 43 is connected to the hanging ring 45, so that the pull rope 42 continuously pulls the support arm 22, so that the pressure roller 23 is away from the paper guide roller, so that the rewinding machine can rewind the paper;

[0034] After the rewinder rewinds the paper, the worker separates the spring buckle 43 from the hanging ring 45, and relies on the elastic force of the spring 33 to drive the rocker 31, thereby swinging the two support arms 22 upward and making the pressure roller 23 contact with the paper, clamping the paper between the paper guide roller and the pressure roller 23, so that the paper will not fall back after being cut.

[0035] Embodiment 2:

[0036] Based on the first embodiment, the difference is as follows: the driving component is a hydraulic rod or an electric cylinder hingedly installed between the connecting rod 32 and the mounting rod 34, and the swing arm 31 is driven to swing by controlling the contraction of the hydraulic rod or the electric cylinder.

Claims

1. A paper rewinding machine anti-backward mechanism, comprising a rewinding machine housing, a movable shaft, a pressure roller and a driving assembly, characterized in that: The rear end of the movable shaft is rotatably mounted on the rewinder housing, and a roller body and two support arms are mounted on the movable shaft, and the two support arms are respectively arranged on the front and rear sides of the roller body; Removable covers are respectively installed on the opposite backs of the two support arms, and the covers are sleeved on the movable shafts. A swing rod is installed at the bottom of any of the covers; A slide groove is provided at the upper end of the support arm; The pressure roller is arranged between the two support arms, and threaded shafts are respectively installed at the front and rear ends of the pressure roller, and the threaded ends of the threaded shafts pass through the slide grooves and are threadedly connected with nuts; The driving assembly is installed between the rewinding machine housing and the swing rod, and can drive the swing rod to swing.

2. The anti-backward mechanism of the paper rewinding machine according to claim 1, characterized in that: A mounting rod is welded on the rewinder housing, and a connecting rod is welded on the swing arm.

3. The anti-backward mechanism of the paper rewinding machine according to claim 2, characterized in that: The driving assembly is a spring installed between the connecting rod and the mounting rod.

4. The anti-backward mechanism of the paper rewinding machine according to claim 1, characterized in that: The driving assembly is a hydraulic rod or an electric cylinder hingedly mounted between a connecting rod and a mounting rod.

5. The anti-backward mechanism of the paper rewinding machine according to claim 3, characterized in that: It also includes a fixing ring, a pull rope and a fixing rod welded on the rewinding machine housing, a hanging ring is welded on the front end of the fixing rod, the fixing ring is installed on the upper end of any one of the support arms, one end of the pull rope is connected to the fixing ring, and the other end is connected to a spring buckle, which is adapted to the hanging ring.

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