Split type outlet sliding guide and guard device for wire twisted steel

Abstract

The split type outlet sliding guide and guard device comprises a guide pipe and a guide and guard box, the guide pipe and the guide and guard box are of a split type structure, positioning keys are symmetrically arranged on the side, close to a guide and guard tip, of the outer ring of the guide pipe in the vertical direction, and fixing faces are symmetrically formed in the middle of the outer ring of the guide pipe in the vertical direction; a positioning groove is longitudinally formed in one end of the guide and guard box and matched with the positioning key on the guide pipe, a fixing hole is further formed in the guide and guard box, and a fixing bolt penetrates through the fixing hole and the fixing face. The guide and guard box and the guide pipe are designed in a split mode, when the guide and guard tip or the guide pipe is partially damaged, only the damaged guide pipe needs to be replaced, the guide and guard box can be recycled on line for a long time, the number and consumption of spare parts are greatly reduced, rolling cost is saved, precision errors and thermal deformation during manual welding are avoided through the split design, and production efficiency is improved. And the guide pipe and the guide and guard box are more convenient to mount and dismount.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of rolling steel, specifically to a split type outlet sliding guide device for wire rod screw reinforcement. BACKGROUND

[0002] The outlet sliding guide is installed below the roller box base of the rolling mill, used to guide the rolling piece to smoothly separate from the roller ring and bite into the roller ring of the next rolling mill at the correct angle. This kind of sliding guide is widely used in the wire rod pre-finishing mill, finishing mill and reduction and sizing mill unit due to its simple structure and convenient maintenance.

[0003] The outlet guide is made of friction-resistant material, with a guide hole groove inside and a semicircular guide tip close to the roller ring, and a guide box and wear-resistant guide pipe welded outside to form an integrated guide. The integrated guide is prone to be scrapped as a whole due to local wear or breakage of the guide tip, especially the outlet guide close to the threaded roller ring of the finished product rack, which is more prominent in wear and breakage frequency of the guide tip, and prone to cause rolling accidents such as winding and punching. The only way to solve this problem is to replace it frequently, which makes the consumption of spare parts for the outlet guide device high, seriously affecting the rolling cost and economic benefit.

[0004] According to the search in the prior art, the patent with the patent authorization announcement No. CN 201140223Y proposes a split type guide outlet guide pipe, which includes a pipe body and a front port. The front port is sleeved on the outer wall of the pipe body, and the outer wall of the pipe body is provided with bolts for fixing the front port. The front port is provided with a tongue tip and a guard plate, and the tongue tip and the guard plate are made of wear-resistant alloy material to increase the service life and reduce the cost of replacing the front port when it is damaged. The patent only mentions that the guide tip can be replaced, but does not mention the positioning slot and the positioning pin, which cannot solve the problem of wear of the roller ring caused by the deflection of the rolling piece, affecting the surface quality of the semi-finished product and the finished product.

[0005] The patent with the patent authorization announcement No. CN 207463828 U proposes a split type recyclable guide device. By replacing and repairing the detachable guide plate and the guard plate in the guide box through the clamping groove, the guide plate and the guard plate in the guide box are replaced and repaired, which replaces the previous welding method of the guide plate and the guard plate in the guide box, and can realize long-term online circulation of the guide box body, greatly facilitating the on-site operation and production, and reducing the cost of spare parts. The invention relates to the field of steel processing auxiliary equipment, and emphasizes the cost saving of the guide box and the inner clamping groove, but does not involve the function of the guide tip and the fixing pin, and is not suitable for high-speed rotating rolling mills. UTILITY MODEL CONTENTS

[0006] The utility model discloses a purpose lies in providing a kind of for wire thread steel bar split type outlet sliding guide device, with Simple structure, it is easy to maintain, the advantages of low cost, through split type outlet sliding guide device, the stability and economy of wire thread steel bar production are significantly improved, the problem in prior art is solved.

[0007] To achieve the above object, the utility model provides the following technical scheme:

[0008] A kind of for wire thread steel bar split type outlet sliding guide device, including guide pipe and guide box, the outer ring of the guide pipe is symmetrically provided with positioning key on the side near guide tip, the middle position of the outer ring of the guide pipe is symmetrically provided with fixed surface;The one end of the guide box is longitudinally provided with positioning slot, positioning slot is matched with the positioning key on guide pipe, fixed hole is further provided on guide box, and fixed bolt is penetrated in fixed hole and fixed surface.

[0009] Preferably, the guide pipe and guide box are split type structure.

[0010] Preferably, the axial length of the positioning slot is 2.5mm longer than the axial length of the positioning key.

[0011] Preferably, the inner edge of the fixed surface along the guide pipe axis is provided with arc sawtooth.

[0012] Preferably, the radian of the arc sawtooth is same with the radian of the side wall of fixed bolt.

[0013] Compared with prior art, the utility model has the beneficial effects as follows:

[0014] 1, the guide box and guide pipe of the utility model are split type design, when guide tip or guide pipe part is damaged, only need to replace damaged guide pipe, and guide box can be long-term on-line circulation, which greatly reduces the number and consumption of spare parts, saves rolling cost.

[0015] 2, the split type design of the utility model avoids precision error and thermal deformation when manual welding, so that the installation and disassembly of guide pipe and guide box are more convenient, and maintenance personnel can adjust or replace damaged parts quickly by loosening fixed bolt, to improve maintenance efficiency.

[0016] 3, the guide pipe in the utility model is designed with positioning key and positioning slot, and is fastened through fixed hole and fixed bolt, to ensure the axial and front and back positioning of guide pipe and guide box, so that guide device can still operate stably under high-speed shaking, to avoid wear and breakage caused by rolling piece shaking.

[0017] 4, the utility model discloses if guide and guard tip wears or the artificial repair of section surface burrs can be adjusted guide pipe's position through the tight fixed bolt, and the forward distance is adjustable about 2.5mm, maximum limit reduces the loss and waste of guide pipe. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the guide pipe plan view of the utility model;

[0019] Figure 2 It is the guide and guard box of the utility model Figure 1 Enlarged view of A;

[0020] Figure 3 It is the guide pipe front view of the utility model;

[0021] Figure 4 It is the guide and guard box plan view of the utility model;

[0022] Figure 5 It is the first assembly drawing of guide and guard box and guide pipe of the utility model;

[0023] Figure 6 It is the second assembly drawing of guide and guard box and guide pipe of the utility model;

[0024] Figure 7 It is the third assembly drawing of guide and guard box and guide pipe of the utility model.

[0025] In the drawing: 1, guide and guard tip;2, positioning key;3, fixed surface;4, guide pipe;5, positioning groove;6, fixed hole;7, guide and guard box;8, fixed bolt;9, arc sawtooth. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0027] In order to solve the problems of guide pipe and guide and guard box needing to be scrapped as a whole, insufficient positioning accuracy and stability, inconvenient maintenance and high cost in the prior art, the following technical solutions are given, please refer to Figures 1-7 ;

[0028] A kind of wire thread steel split type outlet sliding guide device, by guide pipe 4 and guide box 7, for wire finishing mill, reducing fixed machine split type outlet guide, guide box 7 is installed on guide base, guide pipe 4 and guide box 7 are split type structure, only need to replace guide pipe 4 when guide tip 1 breaks or guide pipe 4 wears, and guide box 7 can be long-term on-line circulation, so as to save the cost of rolling.

[0029] Positioning key 2 is symmetrically arranged on the upper and lower sides of the outer ring of guide pipe 4 close to guide tip 1, one end of guide box 7 is longitudinally provided with positioning slot 5, positioning slot 5 is matched with positioning key 2 on guide pipe 4, to avoid the axial misplacement of guide pipe 4 and guide box 7 under the condition that the rolling piece of the unit shakes at high speed when impacting guide tip 1.

[0030] Fixed surface 3 is symmetrically arranged on the upper and lower sides of the middle position of the outer ring of guide pipe 4, guide box 7 is further provided with fixed hole 6, fixed bolt 8 is penetrated into fixed hole 6 and fixed surface 3, guide pipe 4 and guide box 7 are fastened and positioned by fixed bolt 8, to avoid the precision error and thermal deformation when artificial welding, facilitate maintenance and rapid calibration.

[0031] The axial length of positioning slot 5 is 2.5mm longer than the axial length of positioning key 2, positioning key 2 is inserted into the bottom of positioning slot 5 when initially installed, if guide tip 1 is worn or the cross section burr is artificially ground, guide pipe 4 can be displaced by loosening fixed bolt 8, the forward distance is adjustable by about 2.5mm, to minimize the loss and waste of guide pipe 4, while ensuring that the contact area and stress of positioning key 2 and positioning slot 5 remain unchanged, to improve the connection stability.

[0032] The inner edge of fixed surface 3 extending along the axis of guide pipe 4 is symmetrically provided with a plurality of arc sawteeth 9, the arc of arc sawteeth 9 is the same as the arc of the side wall of fixed bolt 8, and the apertures for accommodating and clamping fixed bolt 8 are formed between arc sawteeth 9, when guide tip 1 is worn and guide pipe 4 needs to be moved forward, fixed bolt 8 is extracted and inserted into the next aperture, to further ensure that guide pipe 4 will not move backward when guide tip 1 is impacted, to ensure the positioning accuracy and avoid the relative forward and backward sliding of guide pipe 4 and guide box 7.

[0033] The port of guide tip 1 is adapted to the clearance of 1-2mm between roll ring pass, so that the rolling piece can tightly adhere to the hole groove and guide the rolling piece to smoothly roll off.

[0034] Working principle: the guide box 7 is fixed on the outlet base of the finishing mill and the reducing mill, the guide tip 1 port is matched with the ring groove clearance of 1-2mm to avoid friction between the ring and the groove after the mill roll box is started, the guide pipe 4 is fastened with the guide box 7 through the fixing hole 6 and the fixing bolt 8, the axial and front and back positioning of the guide pipe 4 and the guide box 7 are ensured, if the guide tip 1 is worn or the cross section burr is artificially ground, the position of the guide pipe 4 can be adjusted by loosening the fixing bolt 8, the forward distance can be adjusted by about 2.5mm, the loss and waste of the guide pipe 4 are minimized, when the guide tip 1 or the guide pipe 4 is partially damaged, only the damaged guide pipe 4 needs to be replaced, and the guide box 7 can be used for long-term online circulation.

[0035] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action, without necessarily requiring or implying that there is any such relationship or order between such entities or actions. Also, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0036] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application.

Claims

1. A split outlet sliding guide device for wire threaded reinforcement, comprising a guide tube (4) and a guide box (7), characterized in that, The outer ring of the guide pipe (4) is symmetrically provided with positioning keys (2) on the side close to the guide tip (1), and the middle part of the outer ring of the guide pipe (4) is symmetrically provided with fixing surfaces (3); one end of the guide box (7) is longitudinally provided with a positioning groove (5), the positioning groove (5) is matched with the positioning keys (2) on the guide pipe (4), and the guide box (7) is further provided with a fixing hole (6), and the fixing hole (6) and the fixing surface (3) are penetrated by a fixing bolt (8).

2. A split outlet sliding guide device for wire threaded steel bars as claimed in claim 1 wherein, The guide pipe (4) and the guide box (7) are of a split structure.

3. A split outlet sliding guide device for wire threaded rebar as claimed in claim 2, wherein, The axial length of the positioning groove (5) is 2.5 mm longer than the axial length of the positioning key (2).

4. A split outlet sliding guide device for wire threaded rebar as claimed in claim 3, wherein, The inner edge of the fixing surface (3) extending along the axis of the guide pipe (4) is provided with an arc-shaped sawtooth (9).

5. A split outlet sliding guide device for wire threaded reinforcement according to claim 4, characterized in that, The arc of the arc-shaped sawtooth (9) is the same as the arc of the sidewall of the fixing bolt (8).

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