Coiled material clamping device

Abstract

The utility model provides a coiled material clamping device. The coiled material clamping device comprises a first roll shaft and a second roll shaft, the central axes of the first roll shaft and the second roll shaft are collinear, the first roll shaft can move relative to the second roll shaft, the first roll shaft and the second roll shaft are sleeved with the two ends of a coiled material respectively, a lining plate is arranged on the first roll shaft, and fixing teeth making contact with the end face of the coiled material are arranged on the end face of the lining plate. The fixing teeth protrude out of the end face of the lining plate and extend in the radial direction of the coiled material. An original clamping device is improved, the lining plate is additionally arranged, the coiled material is fixed through the fixing teeth on the lining plate, the fixing teeth extend in the radial direction of the coiled material, the coiled material can be effectively fixed, and slipping between the coiled material and the clamping device is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette packaging equipment, in particular to a coil clamping device. Background Art

[0002] The transparent packaging paper used in tobacco factories is usually a roll. The transparent paper is wound on a roller, and the roll is supported and fixed by a clamping device. When in use, the movable end of the transparent paper is pulled, and the roller rotates to continuously transport the transparent paper into the packaging machine. In actual use, there are sleeves at both ends of the clamping device, and the two ends of the roll are sleeved on the sleeves. The sleeves can move close to each other to clamp the roll. The sleeve is provided with sharp teeth that contact the end face of the roll. The sharp teeth sink into the end face of the roll to fix the roll relative to the sleeve. However, in actual use, it is found that the roll will rotate relative to the sharp teeth during use, and the sharp teeth cannot effectively fix the roll. Moreover, after slipping, the sharp teeth will leave an annular depression on the end face of the roll, affecting the quality of the transparent packaging paper. Utility Model Content

[0003] The purpose of the utility model is to propose a coil clamping device to address the deficiencies of the above-mentioned prior art, improve the original clamping device, add a lining plate, and use the fixing teeth on the lining plate to fix the coil. The fixing teeth extend radially along the coil, which can effectively fix the coil and prevent slipping between the coil and the clamping device.

[0004] The utility model proposes a coil clamping device, comprising a first roller and a second roller whose central axes are colinear, the first roller can move relative to the second roller, two ends of the coil are respectively sleeved on the first roller and the second roller, a lining plate is arranged on the first roller, and a fixing tooth in contact with the end surface of the coil is arranged on the end surface of the lining plate, the fixing tooth protrudes from the end surface of the lining plate, and the fixing tooth extends radially along the coil.

[0005] A better technical solution of the utility model: the first roller includes a connected fixed end and a supporting end, the radial dimension of the supporting end is smaller than the radial dimension of the fixed end, the radial dimension of the fixed end is larger than the radial dimension of the coil, and the lining plate is arranged at the connection between the fixed end and the supporting end.

[0006] A better technical solution of the utility model is as follows: the end surface of the fixed end is provided with sharp teeth, the lining plate is provided with a fixing hole, and the sharp teeth are inserted into the fixing hole.

[0007] A better technical solution of the utility model: a conical surface is arranged on the side of the second roller shaft facing the first roller shaft.

[0008] A more optimal technical solution of the utility model is as follows: a plurality of the fixing teeth are evenly spaced and arranged on the end surface of the lining plate around the circumference of the first roller shaft.

[0009] The preferred technical solution of the utility model also includes a base, on which a support rod is arranged, and the first roller shaft and the second roller shaft are respectively mounted above the base through the support rod.

[0010] A better technical solution of the utility model is as follows: a slide rail is arranged on the base, the slide rail extends from the first roller axis to the second roller axis, and the two support rods are movably arranged on the slide rail.

[0011] A better technical solution of the utility model is as follows: the support rod is externally connected to a cylinder, and the cylinder drives the support rod to move along the slide rail.

[0012] A better technical solution of the utility model: an adjusting rod is arranged on the first roller shaft, and the adjusting rod is arranged on a side of the first roller shaft facing away from the second roller shaft.

[0013] A better technical solution of the utility model is as follows: the adjusting rod is provided with an external thread, the supporting rod is provided with an adjusting hole, the adjusting rod is inserted into the adjusting hole, and the length direction of the adjusting rod is consistent with the length direction of the slide rail.

[0014] The coil clamping device of the utility model has the following beneficial effects:

[0015] 1. Compared with the original clamping device, the contact area between the fixed teeth and the coil is larger, and because the fixed teeth extend radially along the coil, it is not easy for the fixed teeth and the coil to move relative to each other when the coil rotates. The first roller and the second roller have a good fixing and clamping effect on the coil;

[0016] 2. The present application improves the original clamping device by adding a lining plate, on which a fixing hole is provided, and the sharp teeth on the original device are used to insert the sharp teeth into the fixing hole, so that the lining plate is fixed relative to the first roller;

[0017] 3. An adjusting rod is provided at the fixed end of the first roller, and the position of the first roller and the coiled material thereon is adjusted by using the adjusting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated into the specification and constitute a part of the specification, illustrate embodiments of the utility model and are used together with the description to explain the principles of the utility model. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the utility model, rather than all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic structural diagram of an embodiment of the utility model.

[0020] Figure 2 It is a schematic diagram of the structure of the liner in the embodiment of the utility model.

[0021] In the figure: 10, first roller; 11, supporting end; 12, fixed end; 20, second roller; 21, conical surface; 30, lining plate; 31, fixing teeth; 32, fixing hole; 40, adjusting rod; 51, base; 511, slide rail; 52, support rod. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other arbitrarily without conflict.

[0023] See also Figure 1 A coil clamping device includes a first roller 10 and a second roller 20, the central axes of the first roller 10 and the second roller 20 are collinear, the two ends of the coil are respectively placed on the first roller 10 and the second roller 20, and the first roller 10 can move toward the second roller 20 to clamp the coil between the first roller 10 and the second roller 20. The coil rotates to discharge the material, and the first roller 10 and the second roller 20 rotate synchronously when the coil rotates. In order to fix the coil between the first roller 10 and the second roller 20, a lining plate 30 is arranged on the first roller 10. When the first roller 10 and the second roller 20 clamp the coil, the lining plate 30 contacts the end surface of the coil, and the end surface of the lining plate 30 is provided with a fixing tooth 31, and the fixing tooth 31 extends in the radial direction of the coil; when clamping the coil, the fixing tooth 31 sinks into the end surface of the coil, and the fixing tooth 31 contacts the surface of the coil, and the first roller 10 rotates with the coil to discharge the material.

[0024] The first roller 10 includes a supporting end 11 and a fixed end 12. The radial dimension of the supporting end 11 is smaller than that of the fixed end 12. The radial dimension of the fixed end 12 is larger than that of the coil. The first roller 10 is stepped, and the two ends of the coil are respectively placed on the first roller 10 and the second roller 20. Specifically, one end of the roll at the center of the coil is inserted on the supporting end 11, and the other end is inserted on the second roller 20.

[0025] The first roller 10 can move relative to the second roller 20 to change the distance between the first roller 10 and the second roller 20; when the first roller 10 moves toward the second roller 20, the first roller 10 and the second roller 20 work together to clamp the coil. Furthermore, a conical surface 21 is provided at one end of the second roller 20 facing the first roller 10, and the radius corresponding to the end of the conical surface 21 close to the first roller 10 is smaller. When clamping the coil, the roll at the center of the coil is placed on the conical surface 21, and since the conicity of the conical surface 21 is a fixed value, when changing coils of different sizes, rolls of any diameter can be placed on the conical surface 21; in conjunction with the first roller 10, coils of different sizes can be clamped.

[0026] The movable end is connected to the fixed end 12 through a bearing. When the coil material is unloaded and rotated, the coil material drives the movable end to rotate together. The coil material drives the movable end to rotate together, and through the friction force, the rotation speed of the coil material is reduced during unloading, so as to avoid the coil material unloading speed being too fast, resulting in excessive unloading and affecting the packaging quality of subsequent links.

[0027] See also Figure 1 and Figure 2 The lining plate 30 is arranged at the junction of the fixed end 12 and the supporting end 11, and a fixing tooth 31 is arranged on the end face of the lining plate 30 facing the second roller 20, and the fixing tooth 31 protrudes from the end face of the lining plate 30; during the movement of the first roller 10 toward the second roller 20, the lining plate 30 contacts the end face of the coil and gradually squeezes the end face of the coil, so that the coil and the first roller 10 remain relatively fixed.

[0028] Furthermore, the length direction of the fixing teeth 31 is the same as the radial direction of the coil. When the coil rotates, its rotation direction is tangent to the length direction of the fixing teeth 31, and the liner 30 is more easily driven and rotates synchronously with the coil. Preferably, the top of the fixing teeth 31 is a pointed tip, so that the fixing teeth 31 are more easily inserted into the end surface of the coil when clamping the coil.

[0029] The present application is an improvement on the existing device. In the existing device, the coil is fixed by the sharp teeth on the first roller 10, while in the present application, it is fixed by the fixing teeth 31; further, a fixing hole 32 is provided on the lining plate 30. When the lining plate 30 is installed, the sharp teeth are inserted into the fixing hole 32, and the first roller 10 fixes the coil through the lining plate 30. At the same time, the lining plate 30 is fixed relative to the first roller 10. When the coil is unloaded, the first roller 10 is driven to rotate by the lining plate 30; specifically, the position and number of the fixing holes 32 correspond to the position and number of the sharp teeth on the original device.

[0030] Preferably, in order to increase the connection stability between the lining plate 30 and the coil, a plurality of fixing teeth 31 are evenly spaced along the circumference of the lining plate 30 , and a plurality of fixing plates act on the coil at the same time to fix the coil relative to the lining plate 30 .

[0031] It also includes a base 51 and a support rod 52. The first roller 10 and the second roller 20 are respectively mounted on the base 51 through a bracket. A slide rail 511 is provided on the base 51. The slide rail 511 connects the two support rods 52. The length direction of the slide rail 511 is parallel to the axis direction of the first roller 10. The support rod 52 is movably provided on the slide rail 511 so that the first roller 10 can move toward the second roller 20. Specifically, the second roller 20 is fixedly provided on the base 51, and the support rod 52 below the first roller 10 is inserted into the slide rail 511. The first roller 10 is externally connected to a cylinder, and the cylinder drives the support rod 52 to move along the slide rail 511, so that the first roller 10 approaches the second roller 20 to clamp the coil.

[0032] Furthermore, an adjustment rod 40 is provided on the side of the fixed end 12 of the first roller 10 facing away from the second roller 20, and the position of the first roller 10 is adjusted by the adjustment rod 40. Specifically, the adjustment rod 40 is a screw rod, and an adjustment hole is provided on the support rod 52, and an internal thread is provided in the adjustment hole. The adjustment rod 40 is inserted into the adjustment hole, and the first roller 10 is moved by rotating the adjustment rod 40.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A coil clamping device, characterized in that: The invention comprises a first roller (10) and a second roller (20) whose central axes are colinear, the first roller (10) being movable relative to the second roller (20), the two ends of the coil being respectively sleeved on the first roller (10) and the second roller (20), the first roller (10) being provided with a lining plate (30), the end surface of the lining plate (30) being provided with a fixing tooth (31) in contact with the end surface of the coil, the fixing tooth (31) protruding from the end surface of the lining plate (30), and the fixing tooth (31) extending in the radial direction of the coil.

2. A coil clamping device according to claim 1, characterized in that: The first roller (10) comprises a connected fixed end (12) and a supporting end (11), the radial dimension of the supporting end (11) being smaller than the radial dimension of the fixed end (12), the radial dimension of the fixed end (12) being larger than the radial dimension of the coil, and the lining plate (30) being arranged at the connection between the fixed end (12) and the supporting end (11).

3. A coil clamping device according to claim 2, characterized in that: The end surface of the fixed end (12) is provided with a sharp tooth, the lining plate (30) is provided with a fixing hole (32), and the sharp tooth is inserted into the fixing hole (32).

4. A coil clamping device according to claim 2, characterized in that: A conical surface (21) is provided on the side of the second roller (20) facing the first roller (10).

5. The coil clamping device according to claim 1, characterized in that: A plurality of the fixing teeth (31) are evenly spaced and arranged on the end surface of the lining plate (30) in a circumferential direction around the first roller shaft (10).

6. A coil clamping device according to claim 1, characterized in that: It also comprises a base (51), a support rod (52) being arranged on the base (51), and the first roller (10) and the second roller (20) are respectively mounted above the base (51) via the support rod (52).

7. A coil clamping device according to claim 6, characterized in that: A slide rail (511) is provided on the base (51), the slide rail (511) extending from the first roller shaft (10) in the direction of the second roller shaft (20), and the two support rods (52) are movably arranged on the slide rail (511).

8. A coil clamping device according to claim 7, characterized in that: The support rod (52) is externally connected to a cylinder, and the cylinder drives the support rod (52) to move along the slide rail (511).

9. A coil clamping device according to claim 7, characterized in that: An adjustment rod (40) is provided on the first roller shaft (10), and the adjustment rod (40) is arranged on a side of the first roller shaft (10) facing away from the second roller shaft (20).

10. A coil clamping device according to claim 9, characterized in that: The adjusting rod (40) is provided with an external thread, the supporting rod (52) is provided with an adjusting hole, the adjusting rod (40) is inserted into the adjusting hole, and the length direction of the adjusting rod (40) is consistent with the length direction of the slide rail (511).

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