Paper unloading stand of a slitting machine

Abstract

The utility model discloses a paper unwinding rack of a slitting machine, comprising two mounting seats arranged opposite to each other, a main shaft being mounted between the two mounting seats, two paper clamping arms being slidably mounted on the main shaft, the two paper clamping arms being respectively connected to two first driving mechanisms for driving the two paper clamping arms to slide on the main shaft, paper clamping blocks being rotatably mounted on opposite sides of upper ends of the two paper clamping arms, a middle clamping arm being mounted on the main shaft between the two paper clamping arms, middle clamping blocks being rotatably mounted on both sides of the upper end of the middle clamping arm opposite to the two paper clamping blocks, by mounting the middle clamping arm between the two paper clamping arms when the main shaft is positioned, and middle clamping blocks being rotatably mounted on both sides of the upper end of the middle clamping arm opposite to the two paper clamping blocks, paper rolls can be clamped and fixed between the middle clamping arm and the two paper clamping arms, and compared with a traditional paper unwinding rack, one or two paper rolls can be clamped and fixed between the two paper clamping arms, so the scope of application is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of slitting machines, in particular to a paper unwinding rack of a slitting machine. Background Art

[0002] An existing roll paper cutter is usually provided with a paper unwinding rack, which is used to lift the paper roll to be cut to a required height for unwinding the paper roll. However, the two paper clamping arms on the existing paper unwinding rack can only clamp and fix one paper roll, so the scope of application is limited. Utility Model Content

[0003] The purpose of the utility model is to overcome the above technical deficiencies, provide a paper pusher for a slitting machine, and solve the technical problems in the background technology.

[0004] In order to achieve the above-mentioned technical purpose, the technical solution of the utility model provides a paper unwinding rack of a slitting machine, comprising two mounting seats arranged opposite to each other, a main shaft is installed between the two mounting seats, two paper clamping arms are slidably provided on the main shaft, the two paper clamping arms are respectively connected to two first driving mechanisms for driving the two paper clamping arms to slide on the main shaft, and paper clamping blocks are rotatably installed on the opposite sides of the upper ends of the two paper clamping arms. It is characterized in that the main shaft is located between the two paper clamping arms and an intermediate clamping arm is installed, and intermediate clamping blocks are rotatably installed on both sides of the upper ends of the intermediate clamping arms opposite to the two paper clamping blocks.

[0005] Furthermore, a first sliding groove matching the main shaft is provided at the bottom of the paper clamping arm, and the paper clamping arm is slidably arranged on the main shaft through the first sliding groove.

[0006] Furthermore, a second sliding groove matching the main shaft is provided at the bottom of the middle clamping arm, and the middle clamping arm is slidably arranged on the main shaft through the second sliding groove.

[0007] Furthermore, the first driving mechanism includes a first telescopic device, one end of which is connected to the paper clamping arm, and the other end of which is connected to the main shaft.

[0008] Furthermore, two ends of the main shaft are rotatably mounted on two mounting seats respectively, and one end of the main shaft is connected to a second driving mechanism for driving the main shaft to rotate.

[0009] Furthermore, the second driving mechanism includes a second telescopic device, one end of the second telescopic device is hinged to one end of the main shaft, and the other end of the second telescopic device is hinged to the mounting seat.

[0010] Furthermore, a connecting frame is installed between the two mounting seats.

[0011] The beneficial effects of the utility model include: the utility model provides a paper unwinding rack of a slitting machine, by installing a middle clamping arm between two paper clamping arms on a main shaft, and rotatably installing middle clamping blocks on both sides of the upper end of the middle clamping arm opposite to the two paper clamping blocks, so that paper rolls can be clamped and fixed between the middle clamping arm and the two paper clamping arms. Compared with traditional paper unwinding racks, one or two paper rolls can be clamped and fixed between the two paper clamping arms, so the scope of application is wider. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of a paper unwinding frame of a slitting machine according to an embodiment of the utility model;

[0013] Figure 2 This is another state diagram of a paper unwinding rack of a slitting machine according to an embodiment of the utility model;

[0014] In the figure: 1, mounting seat; 2, main shaft; 3, paper clamping arm; 31, first slide slot; 4, first driving mechanism; 5, paper clamping block; 6, middle clamping arm; 7, middle clamping block; 8, second driving mechanism. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0016] The utility model embodiment provides a paper unwinding frame of a slitting machine, such as Figure 1-2 As shown, it includes two mounting seats 1 arranged opposite to each other, a main shaft 2 is installed between the two mounting seats, two paper clamping arms 3 are slidably provided on the main shaft 2, and the two paper clamping arms 3 can slide along the central axis direction of the main shaft 2. The two paper clamping arms 3 are respectively connected to two first driving mechanisms 4 for driving the two paper clamping arms 3 to slide on the main shaft 2, and paper clamping blocks 5 are rotatably installed on the opposite sides of the upper ends of the two paper clamping arms 3. The two paper clamping blocks 5 are both conical structures. The main shaft 2 is located between the two paper clamping arms 3 and an intermediate clamping arm 6 is installed. The upper end of the intermediate clamping arm 6 is connected to the The two opposite sides of the two paper clamping blocks 5 are rotatably installed with middle clamping blocks 7, and the middle clamping block 7 includes a cylindrical block and a retaining ring arranged at one end of the cylindrical block. By installing the middle clamping arm 6 on the main shaft 2 between the two paper clamping arms 3, and rotatably installing the middle clamping blocks 7 on both sides of the upper end of the middle clamping arm 6 opposite to the two paper clamping blocks 5, the paper roll can be clamped and fixed between the middle clamping arm 6 and the two paper clamping arms 3. Compared with the traditional paper unwinding rack, one or two paper rolls can be clamped and fixed between the two paper clamping arms 3, so the application range is wider.

[0017] It should be noted that a bearing is installed on the upper end of the paper clamping arm 3, and a rotating shaft is installed at the central axis of the paper clamping block 5. The rotating shaft at the central axis of the paper clamping block 5 is arranged inside the bearing at the upper end of the paper clamping arm 3, so that the paper clamping block 5 can be rotatably installed on the upper end of the paper clamping arm 3. Two bearings are installed on the upper end of the middle clamping arm 6, and rotating shafts are installed at the central axes of the two middle clamping blocks 7. The rotating shafts at the central axes of the two middle clamping blocks 7 are respectively arranged on the inner walls of the two bearings at the upper end of the middle clamping arm 6, so that the two middle clamping blocks 7 can be rotatably installed on the upper end of the middle clamping arm 6.

[0018] In this embodiment, a first sliding groove 31 matching the main shaft 2 is provided at the bottom of the paper clamping arm 3 , and the paper clamping arm 3 is slidably disposed on the main shaft 2 through the first sliding groove 31 .

[0019] In this embodiment, the first driving mechanism 4 includes a first telescopic device, which is a cylinder, a hydraulic cylinder or an electric telescopic rod. One end of the first telescopic device is connected to the paper clamping arm 3, and the other end of the first telescopic device is connected to the main shaft 2. The automatic extension and retraction of the first telescopic device can drive the paper clamping arm 3 to slide on the main shaft 2.

[0020] In this embodiment, both ends of the main shaft 2 are rotatably mounted on two mounting seats 1 respectively, and one end of the main shaft 2 is connected to a second driving mechanism 8 for driving the main shaft 2 to rotate. The second driving mechanism 8 can drive the main shaft 2 to rotate, and the main shaft 2 can drive the paper clamping arm 3 and the middle clamping arm 6 to swing, so that the paper roll clamped and fixed between the middle clamping arm 6 and the paper clamping arm 3 can be lifted to the required height according to the actual needs of the slitting machine for the paper roll unwinding operation.

[0021] It should be noted that bearings are installed on both mounting seats 1 , and both ends of the main shaft 2 are respectively arranged inside the bearings of the two mounting seats 1 , so that both ends of the main shaft 2 can be rotatably installed on the two mounting seats 1 .

[0022] It should be noted that the second driving mechanism 8 includes a second telescopic device, one end of the second telescopic device is hinged to one end of the main shaft 2, and the other end of the second telescopic device is hinged to the mounting base 1. The second telescopic device is one of a cylinder, a hydraulic cylinder or an electric telescopic rod, and the main shaft 2 can be driven to rotate through the automatic extension and retraction of the second telescopic device 9.

[0023] In this embodiment, a connecting frame 9 is installed between the two mounting seats 1. The connecting frame 9 is a square frame to fixedly connect the two mounting seats 1, so that the structure of the entire paper unwinding rack can be stable.

[0024] Specific principle: before paper cutting, the main shaft 2 is driven to rotate by the second driving mechanism 8, and the main shaft 2 drives the paper clamping arm 3 and the middle clamping arm 6 to swing, so that the paper clamping block 5 and the middle clamping block 7 are lowered. When the paper clamping block 5 and the middle clamping block 7 are lowered to a certain height, the paper clamping arm 3 is driven to slide on the main shaft 2 by the first driving mechanism 4, so that the distance between the paper clamping arm 3 and the middle clamping arm 6 becomes larger. After the adjustment is completed, the paper roll is clamped and fixed between the middle clamping arm 6 and the paper clamping arm 3 by the paper clamping block 5 and the middle clamping block 7. After the clamping and fixing is completed, the main shaft 2 is driven to rotate by the second driving mechanism 8, and the main shaft 2 drives the paper clamping arm 3 and the middle clamping arm 6 to swing, and the paper roll clamped and fixed between the middle clamping arm 6 and the paper clamping arm 3 is lifted to the required height. When cutting paper, the paper roll clamped and fixed between the paper clamping arm 3 and the middle clamping arm 6 can be unwound and transported to the slitting machine.

[0025] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A paper unwinding rack of a slitting machine, comprising two mounting seats (1) arranged opposite to each other, a main shaft (2) being mounted between the two mounting seats, two paper clamping arms (3) being slidably mounted on the main shaft (2), the two paper clamping arms (3) being respectively connected to two first driving mechanisms (4) for driving the two paper clamping arms (3) to slide on the main shaft (2), and paper clamping blocks (5) being rotatably mounted on opposite sides of the upper ends of the two paper clamping arms (3), characterized in that: The main shaft (2) is located between the two paper clamping arms (3) and is provided with a middle clamping arm (6). The upper ends of the middle clamping arms (6) are provided with middle clamping blocks (7) rotatably mounted on both sides opposite to the two paper clamping blocks (5).

2. A paper unloading stand for a slitting machine according to claim 1, characterized in that: A first sliding groove (31) matching the main shaft (2) is provided at the bottom of the paper clamping arm (3), and the paper clamping arm (3) is slidably arranged on the main shaft (2) through the first sliding groove (31).

3. A paper unloading stand for a slitting machine according to claim 1, characterized in that: The first driving mechanism (4) comprises a first telescopic device, one end of which is connected to the paper clamping arm (3), and the other end of which is connected to the main shaft (2).

4. A paper unloading stand for a slitting machine according to claim 1, characterized in that: Both ends of the main shaft (2) are rotatably mounted on two mounting seats (1) respectively, and one end of the main shaft (2) is connected to a second driving mechanism (8) for driving the main shaft (2) to rotate.

5. A paper unloading stand for a slitting machine according to claim 4, characterized in that: The second driving mechanism (8) comprises a second telescopic device, one end of the second telescopic device is hinged to one end of the main shaft (2), and the other end of the second telescopic device is hinged to the mounting seat (1).

6. The paper unloading stand of a slitting machine according to claim 1, characterized in that: A connecting frame (9) is installed between the two mounting seats (1).

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