Extension mechanism of coiled material splitting machine

Abstract

The utility model discloses a stretching mechanism of a coiled material splitting machine. The spreading roller and the traction roller are mounted on the rack, and the spreading roller and the traction roller can be matched to convey paper; the spiral notches and the stretching roller are provided with the spiral notches extending from the position near the middle to the two sides, the spiral notches in the two sides of the stretching roller are opposite in rotating direction, tension stretching towards the two sides can be applied to paper in the advancing process, and the paper can be made to be free of wrinkles through stretching traction.

Description

Technical Field

[0001] This utility model belongs to the field of paper bag machine technology, and in particular relates to an unfolding mechanism for a roll material slitting machine. Background Technology

[0002] In the process of realizing this utility model, the inventors discovered that the prior art has at least the following problems:

[0003] During the processing of paper bag machines, the paper used as raw material needs to be cut and conveyed from the paper roll. In traditional technology, the paper is prone to wrinkles during the conveying process, which leads to poor subsequent paper bag forming and waste.

[0004] CN104260417B - Paper Bag Machine and Paper Folding Device, discloses a paper bag machine and a paper folding device, wherein the paper folding device includes a support assembly and a folding assembly. The support assembly includes a support rod, a guide plate, and a paper pad. The upper surface of the support rod is provided with a guide plate, the outer end of which protrudes from the outer side of the support rod. The rear side of the paper pad is tightly fitted with the inner end face of the support rod and the guide plate, and the upper surface of the paper pad is sloped downwards. The folding assembly includes a baffle and a curved piece. The baffle is fixed to the upper end of the baffle fixing rod, but this also fails to solve the above-mentioned technical problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a roll slitting machine stretching mechanism that can apply tension to stretch the paper to both sides during the forward process, so that the paper can be stretched and pulled without wrinkles.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a roll material slitting machine stretching mechanism, which has:

[0007] frame;

[0008] The stretching roller and the traction roller are mounted on the frame and are able to work together to convey paper.

[0009] The stretching roller has spiral grooves extending from near the center to both sides, with the spiral grooves on both sides of the stretching roller rotating in opposite directions.

[0010] The stretching roller is movably mounted on the frame via a clamping mechanism.

[0011] The pressing mechanism includes a swing block, the stretching roller is rotatably mounted near the middle of the swing block, the first end of the swing block is rotatably mounted on the frame, and the second end of the swing block is provided with a pressing power device.

[0012] The clamping power device is a clamping cylinder, which is mounted on the frame. The piston rod of the clamping cylinder is provided with a pressure rod at the second end of the clamping swing block.

[0013] The clamping mechanism also includes a lifting mechanism, which includes a support block mounted on the frame. The support block is provided with a support spring, which contacts the second end of the swing block.

[0014] The support spring is located below the second end of the swing block; the pressure rod is located above the second end of the swing block.

[0015] The traction roller is rotatably mounted on the frame and is connected to the power unit.

[0016] One of the above technical solutions has the following advantages or beneficial effects: it can apply tension to both sides of the paper during the forward movement, so that the paper can be stretched without wrinkles through stretching and traction. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the roll slitting machine stretching mechanism provided in the embodiments of this utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the unfolding mechanism of a roll material slitting machine;

[0019] Figure 3 for Figure 1 A schematic diagram of the unfolding mechanism of a roll material slitting machine;

[0020] Figure 4 for Figure 1 A schematic diagram of the unfolding mechanism of a roll material slitting machine;

[0021] The markings in the above figures are all: 16, rack;

[0022] 201. Stretch roller; 2011. Spiral groove; 202. Traction roller; 203. Swing block.

[0023] 204. Clamping mechanism; 2041. Support block; 2042. Support spring; 2043. Clamping cylinder; 2044. Pressure rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] See Figures 1-4 A roll slitting machine spreading mechanism includes: a frame 16; a spreading roller 201 and a traction roller 202 mounted on the frame 16, the spreading roller 201 and the traction roller 202 cooperating to convey paper; and spiral grooves 2011, the spreading roller 201 having spiral grooves 2011 extending from near the center to both sides, the spiral grooves 2011 on both sides of the spreading roller 201 rotating in opposite directions. During rotation, the spreading roller 201 has spiral grooves 2011 that diffuse from the center to both sides, the direction of which is along the paper's forward direction. During the forward movement, the paper is subjected to a stretching tension to both sides by the spiral groove structure, so that the paper passes through the spreading traction roller 202 without wrinkles.

[0026] The stretching roller 201 is movably mounted on the frame 16 via the pressing mechanism 204. The pressing mechanism 204 can press the stretching roller 201 onto the traction roller 202, and the paper is conveyed by the cooperation of the stretching roller 201 and the traction roller 202.

[0027] The pressing mechanism 204 includes a swing block 203, an expansion roller 201 rotatably mounted near the middle of the swing block 203, and a first end of the swing block 203 rotatably mounted on the frame 16. A pressing power device is provided at the second end of the swing block 203. The second end of the swing block 203 is pressed by the pressing power device, and the swing block 203 swings about the first end of the swing block 203 as the pivot, so that the expansion roller 201 and the traction roller 202 cooperate to press the paper.

[0028] The clamping power device is a clamping cylinder, which is mounted on the frame 16. The piston rod of the clamping cylinder is equipped with a pressure rod 20442043 that clamps the second end of the swing block 203. The clamping cylinder clamps the second end of the swing block 203. Other conventional clamping methods in the art can also be used, such as pressure blocks, hydraulic cylinders, etc.

[0029] The pressing mechanism 204 also includes a lifting mechanism, which includes a support block 2041 mounted on the frame 16. A support spring 2042 is provided on the support block 2041, and the support spring 2042 contacts the second end of the swing block 203. The support spring 2042 of the lifting mechanism supports the swing block 203. After the pressing cylinder releases its pressure, the support spring 2042 can also lift the swing block 203, increasing the distance between the spreading roller 201 and the traction roller 202, facilitating paper adjustment.

[0030] The support spring 2042 is located below the second end of the swing block 203; the pressure rod 20442043 is located above the second end of the swing block 203. The support spring 2042 supports the swing block 203 below, and the pressure rod 20442043 presses the swing block 203 above.

[0031] The traction roller 202 is rotatably mounted on the frame 16 and is connected to the power unit. The power unit can be a conventional means such as a belt mechanism, gear mechanism, or servo motor.

[0032] The lower traction roller is an iron roller that controls the traction speed, while the upper traction roller is a rubber roller with spiral grooves that spread outwards from the center to both sides, in the same direction as the paper's forward movement. As the paper moves forward, the spiral groove structure applies tension to both sides, allowing the paper to pass through the stretching traction roller without wrinkles.

[0033] With the above structure, the paper can be stretched to both sides during the forward movement, so that the paper can be stretched and pulled without wrinkles.

[0034] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A roll material slitting machine unwinding mechanism, characterized in that, have: frame; The stretching roller and the traction roller are mounted on the frame and are able to work together to convey paper. The stretching roller has spiral grooves extending from near the center to both sides, with the spiral grooves on both sides of the stretching roller rotating in opposite directions.

2. The roll slitting machine stretching mechanism as described in claim 1, characterized in that, The stretching roller is movably mounted on the frame via a clamping mechanism.

3. The roll slitting machine stretching mechanism as described in claim 2, characterized in that, The pressing mechanism includes a swing block, the stretching roller is rotatably mounted near the middle of the swing block, the first end of the swing block is rotatably mounted on the frame, and the second end of the swing block is provided with a pressing power device.

4. The roll slitting machine stretching mechanism as described in claim 3, characterized in that, The clamping power device is a clamping cylinder, which is mounted on the frame. The piston rod of the clamping cylinder is provided with a pressure rod at the second end of the clamping swing block.

5. The roll slitting machine stretching mechanism as described in claim 4, characterized in that, The clamping mechanism also includes a lifting mechanism, which includes a support block mounted on the frame. The support block is provided with a support spring, which contacts the second end of the swing block.

6. The roll slitting machine stretching mechanism as described in claim 5, characterized in that, The support spring is located below the second end of the swing block; the pressure rod is located above the second end of the swing block.

7. The roll slitting machine stretching mechanism as described in claim 6, characterized in that, The traction roller is rotatably mounted on the frame and is connected to the power unit.

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