Chuck mechanism and uncoiler

Abstract

The utility model provides a chuck mechanism and an uncoiler, which comprise a cylinder barrel internally provided with a movable cavity, a movable barrel penetrating through the cylinder barrel along the axial direction, a rotating shaft coaxially and rotatably connected with the movable barrel, and a jacking head coaxially and fixedly connected with the rotating shaft, and the movable barrel is in sliding and sealing fit with the cylinder barrel. The movable barrel is fixedly connected with a piston piece which divides the movable cavity into two independent cavities, and the cylinder barrel is provided with two vent holes which are communicated with the movable cavity and located in the two sides of the piston piece respectively. According to the utility model, the reel can be quickly assembled and disassembled, and the stability of the reel during rotation is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a field of uncoiler technology especially relates to a chuck mechanism and uncoiler. BACKGROUND

[0002] The uncoiler chuck plays a vital role in the uncoiler, and it is mainly used for clamping and fixing the steel coil to ensure that the steel coil is stable and smooth during the uncoiling process.

[0003] The existing uncoiler chuck is generally connected with the reel by the fixed telescopic mechanism and the rotating mechanism, and when the reel is replaced, the reel and the rotating mechanism need to be disassembled, and the new reel is connected to the rotating mechanism again. In order to ensure the stability of the connection between the reel and the rotating mechanism, the connection mode of the reel and the rotating mechanism is relatively complex, which affects the installation and disassembly efficiency of the reel. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model provides a chuck mechanism and uncoiler, which is convenient to install and disassemble, and can improve the rotation stability of the reel.

[0005] According to the embodiment of the utility model, a chuck mechanism comprises a cylinder with a movable chamber, a movable cylinder penetrating the cylinder in the axial direction, a rotating shaft coaxially connected with the movable cylinder, and a jacking head fixedly connected with the rotating shaft. The movable cylinder and the cylinder are in sliding and sealing cooperation. The movable cylinder is fixedly connected with a piston sheet that divides the movable chamber into two independent chambers. The cylinder is provided with two air vents that are in communication with the movable chamber and are located on the two sides of the piston sheet respectively.

[0006] Preferably, the rotating shaft comprises a rotating part and a limiting part connected coaxially, the diameter of the limiting part is larger than that of the rotating part, both ends of the limiting part are coaxially connected with a rotating part respectively, two rotating seats are fixedly arranged on the inner side of the movable cylinder, the rotating part is rotationally connected with the rotating seat, the limiting part is located between the two rotating seats, and the jacking head is coaxially connected with the rotating part.

[0007] Further preferably, a plurality of guide grooves parallel to the axis of the movable chamber are arranged on the side wall of the movable chamber, and a sliding block in sliding and sealing cooperation with the guide grooves is arranged on the piston sheet.

[0008] Further preferably, a plurality of limiting teeth are uniformly distributed on the jacking head in the circumferential direction.

[0009] Still further preferably, the jacking head is in the structure of a conical frustum, and the diameter of one end of the jacking head close to the rotating part is larger.

[0010] According to the embodiment of the utility model, a decoiler is also provided, which comprises the chuck mechanism and the winding drum.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The utility model discloses a cylinder is equipped with the movable cylinder along the axial penetration, and the movable cylinder is equipped with the piston piece in the movable chamber of cylinder, and the piston piece is fixedly connected on the movable cylinder, and the movable chamber is divided into two independent chambers by the piston piece, and the movable cylinder is connected with the winding shaft through the rotation of the rotating shaft, and the winding shaft is connected with the top head that can cooperate with the winding shaft, and the winding shaft can be installed and disassembled only through the linear motion of the movable cylinder, and the stability of the winding shaft can be ensured after the top head is tightened, and the installation and disassembly work are more convenient and fast. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a chuck mechanism structure schematic view of the utility model.

[0014] In the above drawings, 1 is a cylinder, 101 is a movable chamber, 102 is a vent hole, 103 is a guide groove, 2 is a movable cylinder, 201 is a piston piece, 202 is a rotating seat, 203 is a sliding block, 3 is a rotating shaft, 301 is a rotating part, 302 is a limiting part, 4 is a top head, and 401 is a limiting tooth. DETAILED DESCRIPTION

[0015] The technical scheme in the utility model will be further described below in combination with the drawings and embodiments.

[0016] Embodiment one:

[0017] As shown in the drawings, Figure 1 A chuck mechanism comprises a cylinder 1 provided with a movable chamber 101, a movable cylinder 2 penetrating the cylinder 1 in the axial direction, a rotating shaft 3 coaxially connected with the movable cylinder 2, and a top head 4 fixedly connected with the rotating shaft 3, the movable cylinder 2 is in sliding and sealing cooperation with the cylinder 1, the movable cylinder 2 is fixedly connected with a piston piece 201 that divides the movable chamber 101 into two independent chambers, the cylinder 1 is provided with two vent holes 102 in communication with the movable chamber 101 and located on the two sides of the piston piece 201 respectively, and the vent holes 102 are connected with an air compressor.

[0018] The input and output of gas through the two air holes 102 can drive the movable cylinder 2 to move linearly along the cylinder 1, and when the installation of the reel is performed, the movable cylinder 2 can drive the jacking head 4 to clamp the reel, and after clamping, the reel can also rotate freely due to the rotation connection of the jacking head 4 and the movable cylinder 2 through the rotating shaft 3, which greatly improves the convenience of reel installation and removal and ensures that the reel can receive clamping effect and rotation is more stable;

[0019] In order to limit the axial movement of the rotating shaft 3, in a further embodiment, the rotating shaft 3 comprises a rotating part 301 and a limiting part 302 coaxially connected, the diameter of the limiting part 302 is larger than that of the rotating part 301, and one rotating part 301 is coaxially connected to each end of the limiting part 302, two rotating seats 202 are fixedly arranged on the inner side of the movable cylinder 2, the rotating part 301 is rotationally connected with the rotating seat 202, and the limiting part 302 is located between the two rotating seats 202, the ends of the limiting part 302 are gap-fitted with the rotating seats 202, and the fitting gap is zero, and the jacking head 4 is coaxially connected with the rotating part 301;

[0020] Limited by the two rotating seats 202, the rotating shaft 3 can rotate at a fixed position;

[0021] In order to limit the relative rotation between the movable cylinder 2 and the cylinder 1, in a further embodiment, a plurality of guide grooves 103 parallel to the axis of the movable chamber 101 are arranged on the side wall of the movable chamber 101, and a sliding and sealing fitting sliding block 203 is arranged on the piston sheet 201;

[0022] In order to ensure the stability between the jacking head 4 and the reel after the reel is installed, in a further embodiment, a limiting tooth 401 is uniformly distributed on the jacking head 4 along the circumference thereof;

[0023] In order to further improve the cooperation degree between the jacking head 4 and the reel, the jacking head 4 is a conical table structure, and the diameter of one end of the jacking head 4 close to the rotating part 301 is larger, and when the jacking head 4 and the reel can produce a stronger cooperation effect with the axial movement of the movable cylinder 2, the stability between the reel and the jacking head 4 is improved;

[0024] Example two:

[0025] A reel includes the chuck mechanism and the reel in example one, and the reel is provided with a matching hole at both ends, and a limiting groove matched with the limiting tooth 401 is arranged on the inner side of the matching hole.

[0026] Finally, it is explained that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the purpose and scope of the present application. The technical solutions of the present application should be covered in the scope of the claims of the present application.

Claims

1. A collet mechanism, characterized by, The application relates to a cylinder device, which comprises a cylinder barrel (1) internally provided with a movable chamber (101), a movable barrel (2) penetrating the cylinder barrel (1) in the axial direction, a rotating shaft (3) coaxially connected with the movable barrel (2), and a pressing head (4) fixedly connected with the rotating shaft (3), the movable barrel (2) is in sliding and sealing cooperation with the cylinder barrel (1), the movable barrel (2) is fixedly connected with a piston sheet (201) for separating the movable chamber (101) into two independent chambers, and the cylinder barrel (1) is provided with two air holes (102) in communication with the movable chamber (101) and respectively located on the two sides of the piston sheet (201).

2. A collet mechanism according to claim 1, wherein The rotating shaft (3) comprises a rotating part (301) and a limiting part (302), the diameter of the limiting part (302) is larger than that of the rotating part (301), two rotating parts (301) are coaxially connected with the two ends of the limiting part (302) respectively, two rotating seats (202) are fixedly arranged on the inner side of the movable barrel (2), the rotating part (301) is in rotating connection with the rotating seat (202), the limiting part (302) is located between the two rotating seats (202), and the pressing head (4) is coaxially connected with the rotating part (301).

3. The collet mechanism of claim 1, wherein, A plurality of guide grooves (103) parallel to the axis of the movable chamber (101) are arranged on the side wall of the movable chamber (101), and a sliding block (203) in sliding and sealing cooperation with the guide grooves (103) is arranged on the piston sheet (201).

4. The collet mechanism of claim 2, wherein, The pressing head (4) is provided with limiting teeth (401) uniformly distributed in the circumferential direction.

5. A collet mechanism according to claim 4, wherein The pressing head (4) is in a conical table type structure, and the diameter of one end of the pressing head (4) close to the rotating part (301) is larger.

6. An uncoiler, characterized by The application further relates to a clamp mechanism and a winding drum, the inner side of the two ends of the winding drum is provided with limiting grooves matched with the limiting teeth (401).

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