Guide mechanism for blanking of roller hearth furnace

Abstract

The utility model relates to a guide mechanism, in particular to a guide mechanism for blanking of a roller hearth furnace. The utility model aims to solve the problem that a special-shaped workpiece is easy to deviate or roll during blanking after being subjected to heat treatment in a roller hearth furnace, so that inconvenience is brought to blanking work. The device is simple in structure and convenient to operate, the transmission lead screw can rotate along with the rotor of the driving motor, the rotation of the transmission lead screw drives the two internal thread blocks on the transmission lead screw to be close to or far away from each other, so that the angle between the connecting rod and the second guide plates is changed, and the two second guide plates are close to or far away from each other; the distance between the two second guide plates is changed according to the width or diameter of the workpiece, so that the workpiece is guided on the transmission roller, the workpiece is prevented from deviating or rolling, the workpiece discharging stability is improved, and convenience is brought to workpiece discharging. The utility model belongs to the technical field of blanking guiding of roller hearth furnaces.

Description

TECHNICAL FIELD

[0001] The utility model relates to a guide mechanism, concretely relates to a guide mechanism for roll bottom furnace blanking belongs to roll bottom furnace blanking guide technical field. BACKGROUND

[0002] Roll bottom furnace is a kind of high-efficiency heat treatment equipment widely used in steel metallurgy, non-ferrous metal and machinery industry, because it is fast, and the temperature uniformity in furnace is good, is widely used in solid solution, quenching, annealing, tempering and other heat treatment processes.

[0003] Roller way rack of roll bottom furnace is arranged with a transmission roller every certain length, and multiple transmission rollers form a roller way, and workpiece is in and out of furnace body on the roller way, but the roll bottom furnace is often used, and the workpiece with irregular shape or cylindrical shape is often used, and these workpieces are prone to deviation or rolling when blanking, which is inconvenient for blanking work.

[0004] Summarized above, how to aim at the above technical problem, proposes a guide mechanism, which also becomes the problem of the technical personnel in the present field. INVENTION CONTENTS

[0005] The utility model provides a guide mechanism for roll bottom furnace blanking in view of the insufficient of prior art.

[0006] The technical scheme of the utility model is: a guide mechanism for roll bottom furnace blanking, including two groups of mirror image arrangement on the guide unit of roller way rack.

[0007] Each guide unit includes a transmission unit, a first guide plate and a second guide plate.

[0008] Transmission unit includes drive motor, transmission screw, guide rod, two connecting rods, two support seats and two internal thread blocks.

[0009] Drive motor and two support seats are all installed on the roller way rack, and the two ends of the guide rod are fixedly connected with the support seat.

[0010] The rotor of drive motor is fixedly connected with the end of transmission screw, and transmission screw is rotatably connected with support seat.

[0011] The axis of transmission screw is perpendicular to the axis of transmission roller on the roller way rack, two thread segments with opposite rotation directions are arranged on transmission screw, the internal threads of two internal thread blocks are opposite in rotation direction, the internal thread block is installed on transmission screw, and the internal thread block is slidably connected with the guide rod.

[0012] The two ends of connecting rod are respectively hingedly connected with an internal thread block and a second guide plate.

[0013] The first guide plate is inserted into the second guide plate, and the bottom surface of the first guide plate abuts against the top surface of the second guide plate. A row of positioning grooves is provided on the first guide plate.

[0014] The length direction of the second guide plate is parallel to the axis of the transmission screw. A sliding pin and a compression spring are installed on the second guide plate. One end of the sliding pin facing the positioning groove is a hemispherical surface.

[0015] A blind hole is formed on the second guide plate. The sliding pin and the compression spring are coaxially arranged in the blind hole, and two ends of the compression spring respectively abut against the sliding pin and the bottom of the blind hole.

[0016] Compared with the prior art, the present invention has the following effects:

[0017] The utility model has a simple structure and is easy to operate. The transmission screw 303 can rotate together with the rotor of the driving motor 302. The rotation of the transmission screw 303 drives the two internal thread blocks 304 thereon to move closer to or away from each other, thereby causing the angle between the connecting rod 305 and the second guide plate 307 to change, so that the two second guide plates 307 are moved closer to or away from each other. The spacing between the two second guide plates 307 is changed according to the width or diameter of the workpiece to guide the workpiece on the transmission roller, thereby preventing the workpiece from deviating or rolling, improving the stability of workpiece unloading, and bringing convenience to workpiece unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the main view of the utility model;

[0019] Figure 2 It is a top view of the utility model;

[0020] Figure 3 This is a front view of the transmission unit 3 of the present utility model;

[0021] Figure 4 yes Figure 1 A partial enlarged view of point Ⅰ in the middle;

[0022] Figure 5 yes Figure 3 A partial enlarged view of point II in the middle.

[0023] In the figure: 1. furnace body; 2. roller frame; 3. transmission unit; 301. support base; 302. drive motor; 303. transmission screw; 304. internal thread block; 305. connecting rod; 308. coupling; 309. guide rod; 306. first guide plate; 307. second guide plate; 4. latch; 5. insertion hole; 6. ball; 7. positioning groove; 8. sliding pin; 9. compression spring. DETAILED DESCRIPTION

[0024] In order to make the utility model more obvious and easy to understand, the technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model.

[0025] Specific implementation one: in combination Figures 1 to 5 It is illustrated that the embodiment is a guiding mechanism for roller hearth furnace blanking, which comprises two groups of guiding units arranged in mirror image on a roller rack 2.

[0026] Each group of guiding units comprises a transmission unit 3, a first guiding plate 306 and a second guiding plate 307.

[0027] The transmission unit 3 comprises a driving motor 302, a transmission screw 303, a guiding rod 309, two connecting rods 305, two support seats 301 and two internal threaded blocks 304.

[0028] The driving motor 302 and the two support seats 301 are both mounted on the roller rack 2, and the two ends of the guiding rod 309 are fixedly connected with the support seats 301.

[0029] The rotor of the driving motor 302 is fixedly connected with the end of the transmission screw 303, and the transmission screw 303 is rotationally connected with the support seat 301.

[0030] The axis of the transmission screw 303 is perpendicular to the axis of the transmission roller on the roller rack 2, two thread segments with opposite rotation directions are arranged on the transmission screw 303, the internal threads of the two internal threaded blocks 304 are opposite in rotation direction, the internal threaded blocks 304 are mounted on the transmission screw 303, and the internal threaded blocks 304 are slidingly connected with the guiding rod 309.

[0031] The two ends of the connecting rod 305 are hingedly connected with one internal threaded block 304 and the second guiding plate 307 respectively.

[0032] The first guiding plate 306 is inserted into the second guiding plate 307, and the bottom surface of the first guiding plate 306 abuts against the top surface of the second guiding plate 307, and a row of positioning grooves 7 is formed in the first guiding plate 306.

[0033] The length direction of the second guiding plate 307 is parallel to the axis of the transmission screw 303, a sliding pin 8 and a compression spring 9 are mounted on the second guiding plate 307, and one end of the sliding pin 8 facing the positioning groove 7 is a hemispherical surface.

[0034] A blind hole is provided on the second guide plate 307, and the sliding pin 8 and the compression spring 9 are coaxially arranged in the blind hole, and the two ends of the compression spring 9 are respectively against the sliding pin 8 and the bottom of the blind hole; the positioning of the first guide plate 306 on the second guide plate 307 is achieved by the sliding pin 8 entering the positioning groove 7 on the first guide plate 306 under the elastic force of the compression spring 9. With such an arrangement, the distance between the first guide plate 306 and the second guide plate 307 is adjusted according to the height or diameter of the workpiece, so that the utility model can guide workpieces of different sizes, thereby further improving the practicality of the utility model.

[0035] Specific implementation method 2: Combination Figure 1 In this embodiment, a plurality of insertion holes 5 are formed on each of the first guide plate 306 and the second guide plate 307. A plurality of latches 4 are mounted on each of the first guide plate 306 and the second guide plate 307. The latches 4 are inserted into the insertion holes 5. Other components and connections are the same as those in the first embodiment.

[0036] Specific implementation method three: Combination Figure 1 、 Figure 3 and Figure 5 To illustrate this embodiment, this embodiment also includes a ball 6. A plurality of ball mounting holes are provided on the first guide plate 306 and the second guide plate 307. The cross-section of the ball mounting hole is C-shaped, and the opening of the C-shape faces the workpiece being cut. The ball 6 is installed in the ball mounting hole. With this arrangement, a portion of the outer spherical surface of the ball 6 is exposed from the C-shaped opening, which facilitates the contact between the ball 6 and the workpiece being cut, so as to reduce the contact area between the workpiece and each guide plate, reduce friction, and make the movement of the workpiece smoother.

[0037] Other components and connection relationships are the same as those in the first, second or third embodiment.

[0038] Specific implementation method four: Combination Figure 3 To illustrate this embodiment, this embodiment further includes a coupling 308 , through which the rotor of the driving motor 302 is connected to the transmission screw 303 .

[0039] Furthermore, the driving motor 302 is a stepping reduction motor.

[0040] Other components and connection relationships are the same as those in the first, second or third embodiment.

[0041] How it works

[0042] The two groups of guiding units are mirror arranged on the roller table frame 2, and one group of guiding units moves as follows: after the workpiece is heat treated in the furnace body 1, the workpiece is transported out by the transmission roller, then the driving motor 302 is started, the transmission screw rod 303 rotates with the rotor of the driving motor 302, the rotation of the transmission screw rod 303 drives the two inner threaded blocks 304 on the transmission screw rod 303 to move close to or away from each other, so that the angle between the connecting rod 305 and the second guiding plate 307 changes.

[0043] The two groups of guiding units move simultaneously to realize that the two second guiding plates 307 move close to or away from each other, the interval of the two second guiding plates 307 is changed according to the width or diameter of the workpiece, so that the workpiece is guided on the transmission roller, and the phenomenon that the workpiece deviates or rolls is prevented, the stability of workpiece discharging is improved, and the workpiece discharging is facilitated.

[0044] The utility model has disclosed above with preferable implementation, however not use to limit the utility model, any familiar professional technical personnel, do not leave the content of the utility model technical scheme, according to the technical essence of the utility model to the above implementation case of any simple modification, equivalent change and modification, still belong to the utility model technical scheme range.

Claims

1. A guide mechanism for unloading materials from a roller hearth furnace, characterized in that: It comprises two sets of guide units arranged in mirror image on a roller table frame (2); Each guide unit group includes a transmission unit (3), a first guide plate (306) and a second guide plate (307); The transmission unit (3) comprises a driving motor (302), a transmission screw (303), a guide rod (309), two connecting rods (305), two support seats (301) and two internal thread blocks (304); The driving motor (302) and the two support seats (301) are both mounted on the roller table frame (2), and both ends of the guide rod (309) are fixedly connected to the support seats (301); The rotor of the driving motor (302) is fixedly connected to the end of the transmission screw (303), and the transmission screw (303) is rotationally connected to the support base (301); The axis of the transmission screw (303) is perpendicular to the axis of the transmission roller on the roller table frame (2); the transmission screw (303) is provided with two thread segments with opposite rotation directions; the internal threads of the two internal thread blocks (304) are rotated in opposite directions; the internal thread blocks (304) are mounted on the transmission screw (303), and the internal thread blocks (304) are slidably connected to the guide rod (309); The two ends of the connecting rod (305) are respectively hinged to an internal thread block (304) and a second guide plate (307); The first guide plate (306) is inserted into the second guide plate (307), and the bottom surface of the first guide plate (306) abuts against the top surface of the second guide plate (307). The first guide plate (306) is provided with a row of positioning grooves (7); The length direction of the second guide plate (307) is parallel to the axis of the transmission screw (303), and a sliding pin (8) and a compression spring (9) are installed on the second guide plate (307), and the end of the sliding pin (8) facing the positioning groove (7) is a hemispherical surface; A blind hole is formed on the second guide plate (307), and the sliding pin (8) and the compression spring (9) are coaxially arranged in the blind hole, and the two ends of the compression spring (9) are respectively against the sliding pin (8) and the bottom of the blind hole.

2. The guide mechanism for unloading materials from a roller hearth furnace according to claim 1, characterized in that: The first guide plate (306) and the second guide plate (307) are both provided with a plurality of insertion holes (5), and the first guide plate (306) and the second guide plate (307) are both provided with a plurality of latches (4), which are inserted into the insertion holes (5).

3. The guide mechanism for unloading materials from a roller hearth furnace according to claim 2, characterized in that: Also includes a ball (6); A plurality of ball mounting holes are provided on the first guide plate (306) and the second guide plate (307). The cross-section of the ball mounting holes is C-shaped, and the balls (6) are mounted in the ball mounting holes.

4. The guide mechanism for unloading materials from a roller hearth furnace according to claim 3, characterized in that: The invention also includes a coupling (308), and the rotor of the driving motor (302) is connected to the transmission screw (303) through the coupling (308).

5. The guide mechanism for unloading materials from a roller hearth furnace according to claim 4, characterized in that: The driving motor (302) is a stepping reduction motor.

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