Cone pulley for wire drawing

Abstract

The utility model relates to a cone pulley for wire drawing, which comprises a central shaft, a rotatable structure is mounted on the central shaft, a cone pulley sheet assembly structure capable of being detached independently and integrally is mounted on the rotatable structure, and the cone pulley sheet assembly structure comprises a cone pulley die, cone pulley sheets, annular mounting sheets and fastening screws. A cone pulley mold is installed on the surface of a rotatable structure, the cross section of the cone pulley mold extends from top to bottom in a step shape, a cone pulley piece capable of being disassembled is installed on each step face of the cone pulley mold, and the cone pulley pieces comprise the first cone pulley piece, the second cone pulley piece, an annular installation piece and a fastening screw. Grooves are formed in the surface of a first cone pulley piece and the surface of a second cone pulley piece, annular installation pieces are installed in the grooves, and the first cone pulley piece and the second cone pulley piece are fixed through fastening screws. The utility model solves the problem that when the cone pulley in the middle is disassembled, the cone pulley outside the cone pulley sheet in the middle needs to be disassembled before being disassembled, so that the disassembly and replacement are more troublesome.

Description

Technical Field

[0001] The utility model relates to the technical field of metal wire drawing equipment, in particular to a step pulley for wire drawing. Background Art

[0002] The wire drawing machine is used to stretch metal into wire. The role of the pulley in the wire drawing machine is particularly critical. It can stabilize the speed of wire transmission and prevent the metal wire from S-bending, thereby ensuring the quality of wire drawing. The pulley in the existing wire drawing machine is very likely to cause wear on the surface of the pulley due to long-term friction with the metal wire during actual use. The higher the degree of wear, the greater the impact on the metal wire. Due to the high transmission speed of the metal wire, wear grooves appear on the surface of the pulley. At the high transmission speed of the metal wire, tensile marks may be generated on the surface of the metal wire, affecting the quality of the metal wire.

[0003] However, the existing tower pulleys are all stepped and integrated, and it is impossible to replace the tower pulley pieces on each step individually. Therefore, when the tower pulley surface is severely worn, it can only be replaced as a whole. This replacement method is costly. Therefore, in order to solve this problem, Chinese patent CN208976517U, a sliding tower pulley group, a water tank wire drawing machine using the sliding tower pulley group, and a water tank wire drawing machine point out that: even if a separate tower pulley piece is installed on the bearing by bolts, if the middle tower pulley piece is damaged, it is necessary to disassemble all pieces except the middle one before it can be removed. This method is more troublesome and cumbersome.

[0004] Therefore, in order to solve the above technical problems, when the middle tower wheel piece is disassembled, the tower wheels outside the middle cannot be disassembled and can be taken out. Hereby a tower wheel for wire drawing is proposed, which can overcome the above technical problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention provides a step pulley for wire drawing, which solves the problem that when disassembling the middle step pulley, the step pulleys other than the middle step pulley piece need to be removed first, which makes disassembly and replacement more troublesome.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tower pulley for wire drawing, comprising a central axis, a rotatable structure installed on the central axis, a tower pulley piece assembly structure that can be disassembled individually or as a whole installed on the rotatable structure, the tower pulley piece assembly structure comprising a tower pulley mold, a tower pulley piece, an annular mounting piece, and a fastening screw; the tower pulley mold is installed on the surface of the rotatable structure, the cross-section of the tower pulley mold is stepped and extends from top to bottom, and a disassembled tower pulley piece is installed on each step surface of the tower pulley mold, the tower pulley piece comprises a first tower pulley piece, a second tower pulley piece, an annular mounting piece, and a fastening screw; the surfaces of the first tower pulley piece and the second tower pulley piece are both provided with grooves, annular mounting pieces are installed in the grooves, and the first tower pulley piece and the second tower pulley piece are fixed by fastening screws, and a plug-in groove is provided on the inner side surface of the first tower pulley piece.

[0007] Through the above technical solution, further, an extension circular plate is provided on the stepped surface of the step pulley mold, and the extension circular plate can be inserted into the plug-in groove.

[0008] Furthermore, the rotatable structure includes a ball bearing and a mounting sleeve, wherein the inner ring of the ball bearing is mounted on the outer surface of the central shaft, the outer ring of the ball bearing is connected to the mounting sleeve, and the surface of the mounting sleeve is provided with a step pulley mold.

[0009] As a preferred technical solution, an opening is provided on the inner side of the step wheel mold, which is divided into vertical slots and horizontal slots. A sealing gasket is installed in the horizontal slot, and the surface of its mounting sleeve is provided with protrusions distributed in a circular array, and the protrusions can be inserted into the vertical slots.

[0010] Furthermore, a lower baffle is installed on the surface of the central shaft, and an upper baffle is installed on the end of the central shaft through bolts.

[0011] As a preferred technical solution, the curvature of the annular mounting plate is consistent with the curvature of the groove opened on the surface of the first step pulley, and the depth of the groove is consistent with the thickness of the annular mounting plate. A groove is also opened on the surface of the annular mounting plate, and its fastening screw connects the annular mounting plate to the surface of the first step pulley through the groove.

[0012] Compared with the prior art, the present invention provides a step pulley for wire drawing, which has the following beneficial effects:

[0013] 1. The present tower pulley is installed by dividing the tower pulley pieces into two parts, and can be disassembled separately by assembling the first and second tower pulley pieces. During disassembly, it is only necessary to remove the fastening screws to separate the first tower pulley piece from the second tower pulley piece, and due to the effect of the extended circular plate, the adjacent tower pulley pieces will not be affected. In this way, any group of tower pulley pieces can be disassembled and installed separately, and when disassembling the middle tower pulley piece, it is not necessary to remove the remaining tower pulley pieces before disassembling the middle tower pulley, thereby solving the problem that when disassembling the middle tower pulley, it is necessary to remove the tower pulleys other than the middle tower pulley piece before disassembling it, which makes disassembly and replacement more troublesome. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a step pulley for wire drawing in the utility model;

[0015] Figure 2 This utility model is a tower wheel for wire drawing Figure 2 AA cross-sectional structural diagram;

[0016] Figure 3 This is a schematic diagram of a structure of a step pulley installation sleeve for wire drawing according to the present invention;

[0017] Figure 4 This is a schematic cross-sectional view of a step pulley die for wire drawing according to the present invention;

[0018] Figure 5 This is a schematic diagram of the structure of a tower pulley and tower pulley piece for wire drawing in the utility model;

[0019] Figure 6 This utility model is a tower wheel for wire drawing Figure 5 Schematic diagram of the local enlarged structure at point A.

[0020] In the figure: 1. Center shaft; 2. Lower baffle; 3. Upper baffle; 4. Ball bearing; 5. Mounting sleeve; 6. Step pulley; 601. First step pulley; 602. Second step pulley; 7. Step pulley mold; 8. Protrusion; 9. Extended circular plate; 10. Connecting groove; 11. Annular mounting plate; 12. Fastening screw. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example

[0023] See also Figure 1-6 The utility model provides the following technical solutions: a step pulley for wire drawing, comprising a central shaft 1, a rotatable structure mounted on the central shaft 1, a step pulley piece assembly structure which can be detached individually or as a whole mounted on the rotatable structure, the step pulley piece assembly structure comprising a step pulley die 7, a step pulley piece 6, an annular mounting piece 11, and a fastening screw 12; the step pulley die 7 is mounted on the surface of the rotatable structure, and the cross section of the step pulley die 7 is stepped and extends from top to bottom, and each step surface of the step pulley die 7 (see Figure 4 Visible and combined Figure 2 It can be seen that a disassembled tower pulley 6 is installed on it, and the tower pulley 6 includes a first tower pulley 601, a second tower pulley 602, an annular mounting plate 11, and a fastening screw 12; the surfaces of the first tower pulley 601 and the second tower pulley 602 are both provided with grooves, and an annular mounting plate 11 is installed in the groove and the first tower pulley 601 and the second tower pulley 602 are fixed by the fastening screw 12, and a plug-in slot 10 is provided on the inner side surface of the first tower pulley 601.

[0024] In this embodiment, the specific working principle is: when disassembling the tower pulley 6, first remove the fastening screw 12 from the first tower pulley piece 601, so that the annular mounting plate 11 is removed from the groove, and then separate the first tower pulley piece 601 from the second tower pulley piece 602 to realize the disassembly of the tower pulley piece 6. In this way, the problem that when disassembling the tower pulley in the middle, the tower pulleys other than the tower pulley in the middle need to be removed first before disassembly can be carried out, which makes disassembly and replacement more troublesome, is solved.

[0025] In order to avoid affecting the adjacent step pulley pieces 6 when removing the step pulley piece 6, please refer to Figure 2 and Figure 4 It can be seen that an extended circular plate 9 is provided on the stepped surface of the step wheel mold 7, and the extended circular plate 9 can be inserted into the plug-in groove 10. The extended circular plate 9 can stabilize the step wheel piece 6 and prevent the problem of shaking. Secondly, the step wheel piece 6 can be more firmly connected when installed on the step wheel mold 7.

[0026] Since the metal wire is transmitted at a high speed, in order to reduce the friction between the step pulley 6 and the metal wire, please refer to Figure 2 and Figure 3 It can be seen that the rotatable structure includes a ball bearing 4 and a mounting sleeve 5. The inner ring of the ball bearing 4 is installed on the outer surface of the central shaft 1, and the outer ring of the ball bearing 4 is connected to the mounting sleeve 5. The surface of the mounting sleeve 5 is provided with a stepper mold 7. The ball bearing 4 can realize the rotation of the mounting sleeve 5, and then the rotation in the direction of the metal wire transmission can be realized, which can reduce the friction between the two.

[0027] In order to make the step pulley 7 better and more firmly installed on the installation sleeve 5, please refer to Figure 3 and Figure 4 It can be seen that an opening is provided on the inner side of the step pulley mold 7, which is divided into a vertical groove and a horizontal groove. A sealing gasket is installed in the horizontal groove. The surface of the mounting sleeve 5 is provided with protrusions 8 in a ring array. The protrusions 8 can be inserted into the vertical groove. The vertical groove in the step pulley mold 7 is aligned with the protrusion 8, and then the connection is achieved. Due to the action of the sealing gasket, the tightness between the two can be achieved, thereby ensuring that the connection between the two is stable.

[0028] In order to stabilize the step pulley 6 and prevent it from moving in the front and rear directions, please refer to Figure 1 It can be seen that a lower baffle 2 is installed on the surface of the central shaft 1, and an upper baffle 3 is installed on the end of the central shaft 1 through bolts. It should be noted that the lower baffle 2 and the upper baffle 3 are only in contact with the step pulley 6 and have no connection relationship.

[0029] In order to prevent the metal wire from rubbing against the groove or the annular mounting plate 11, please refer to Figure 5 and Figure 6 It can be seen that the curvature of the annular mounting plate 11 is consistent with the curvature of the groove opened on the surface of the first tower wheel 601, and the depth of the groove is consistent with the thickness of the annular mounting plate 11. A groove is also opened on the surface of the annular mounting plate 11, and its fastening screw 12 connects the annular mounting plate 11 to the surface of the first tower wheel 601 through the groove.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A step pulley for wire drawing, comprising a central shaft (1), on which a rotatable structure is mounted, characterized in that: The rotatable structure is provided with a tower pulley assembly structure that can be disassembled individually or as a whole, and the tower pulley assembly structure comprises a tower pulley mold (7), a tower pulley piece (6), an annular mounting piece (11), and a fastening screw (12); the tower pulley mold (7) is installed on the surface of the rotatable structure, and the cross section of the tower pulley mold (7) is stepped and extends from top to bottom, and a tower pulley piece (6) that can be disassembled is installed on each stepped surface of the tower pulley mold (7), and the tower pulley piece (6) comprises a first tower pulley piece (601), a second tower pulley piece (602), an annular mounting piece (11), and a fastening screw (12); the surfaces of the first tower pulley piece (601) and the second tower pulley piece (602) are both provided with grooves, the annular mounting piece (11) is installed in the grooves, and the first tower pulley piece (601) and the second tower pulley piece (602) are fixed by the fastening screw (12), and a plug-in slot (10) is provided on the inner side surface of the first tower pulley piece (601).

2. The step pulley for wire drawing according to claim 1, characterized in that: An extended circular plate (9) is provided on the stepped surface of the step wheel die (7), and the extended circular plate (9) can be inserted into the insertion groove (10).

3. The step pulley for wire drawing according to claim 1, characterized in that: The rotatable structure comprises a ball bearing (4) and a mounting sleeve (5), wherein the inner ring of the ball bearing (4) is mounted on the outer surface of the central shaft (1), the outer ring of the ball bearing (4) is connected to the mounting sleeve (5), and the surface of the mounting sleeve (5) is sleeved with a step pulley mold (7).

4. The step pulley for wire drawing according to claim 3, characterized in that: The inner side of the step wheel mold (7) is provided with an opening, which is divided into a vertical slot and a horizontal slot. A sealing gasket is installed in the horizontal slot. The surface of the mounting sleeve (5) is provided with protrusions (8) distributed in a ring array. The protrusions (8) can be inserted into the vertical slot.

5. The step pulley for wire drawing according to claim 1, characterized in that: A lower baffle (2) is installed on the surface of the central shaft (1), and an upper baffle (3) is installed on the end of the central shaft (1) via bolts.

6. The step pulley for wire drawing according to claim 1, characterized in that: The curvature of the annular mounting piece (11) is consistent with the curvature of the groove provided on the surface of the first tower wheel (601), and the depth of the groove is consistent with the thickness of the annular mounting piece (11). A groove is also provided on the surface of the annular mounting piece (11), and the fastening screw (12) connects the annular mounting piece (11) to the surface of the first tower wheel (601) through the groove.

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