Feeding device of continuous mesh belt furnace and continuous mesh belt furnace

Abstract

The utility model belongs to the technical field of heat treatment devices, and particularly discloses a feeding device of a continuous mesh belt furnace and the continuous mesh belt furnace. The conveying mesh belt is used for conveying materials, a scraper is arranged above the conveying mesh belt, the adjusting mechanism enables the scraper to rotate, an included angle is formed between the scraper and the conveying mesh belt, the distance between the edge, facing the conveying mesh belt, of the scraper and the conveying mesh belt is achieved, and then the thickness of the materials on the conveying mesh belt is controlled. The materials make contact with the scraping plate, the conveying mesh belt drives the materials to move, the materials apply force to the scraping plate, but the scraping plate is locked in the second rotating direction, the materials cannot push the scraping plate to rotate around the second rotating direction, part of the materials continue to move through the gap between the scraping plate and the conveying mesh belt, and part of the materials are stopped by the scraping plate. The thickness of materials on the conveying mesh belt is uniform, the materials are heated uniformly, and the quality of products subjected to heat treatment of the continuous mesh belt furnace is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat treatment device technical field especially relates to a kind of feeding device and continuous mesh belt furnace of continuous mesh belt furnace. BACKGROUND

[0002] In industrial production, the difference between using continuous mesh belt furnace to carry out batch product heat treatment processing and using periodic heat treatment equipment to carry out batch product heat treatment processing is that continuous mesh belt furnace cannot arrange the material to be processed in advance, and the heat treatment effect of continuous mesh belt furnace on the material is consistent and stable through the reasonable placement of the material. Especially when using continuous mesh belt furnace to carry out product heat treatment processing, the thickness of the material to be processed is a key factor affecting the stability of product quality, and the following problems mainly exist:

[0003] 1. The size, shape and chemical composition of the material processed by the continuous mesh belt furnace are different, and the thickness of the material laid on the conveying mesh belt is inconsistent. Over-thickness or over-thin will lead to uneven heating of the material at different positions, over-thickness will lead to incomplete austenitization of part of the material, affecting the phase transformation of its cooling process, leading to unstable product quality; over-thin will reduce the utilization rate of continuous mesh belt furnace, increase production cost, and over-thin laying will lead to accelerated heating of the material, which may cause local overheating of the material due to rapid heating, and thus lead to uneven transformation of the material organization, generate large thermal stress, make the product prone to deformation or even cracking.

[0004] 2. Over-thickness of the material laid on the conveying mesh belt will lead to blocked heat transfer, the outer layer of the material may be overheated, while the inside may not reach the required heat treatment temperature, the product may be brittle due to excessive quenching of the outer layer, and the inside may not be hard enough due to incomplete quenching.

[0005] Therefore, it is necessary to solve the problem of making the thickness of the material entering the continuous mesh belt furnace consistent. INVENTION CONTENTS

[0006] The utility model aims at providing a kind of feeding device and continuous mesh belt furnace of continuous mesh belt furnace, make the thickness of the material entering the continuous mesh belt furnace consistent, improve the quality of product after heat treatment by continuous mesh belt furnace.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] In the first aspect, a kind of feeding device of continuous mesh belt furnace is provided, comprising:

[0009] Conveying mechanism, comprising conveying frame and conveying mesh belt arranged on the conveying frame;

[0010] A scraper is arranged above the conveying mesh belt, the scraper extends along the width direction of the conveying mesh belt, and both ends of the scraper are rotationally connected with the conveying frame;

[0011] An adjusting mechanism is connected with the scraper, the adjusting mechanism is used for rotating the scraper in a first rotation direction and locking the scraper in a second rotation direction, so as to adjust the distance between the edge of the conveying mesh belt and the scraper, and when the material conveyed by the conveying mesh belt contacts the scraper, the material has a tendency to rotate the scraper in the second rotation direction;

[0012] The first rotation direction is opposite to the second rotation direction.

[0013] As an optional technical solution of the above-mentioned continuous mesh belt furnace feeding device, the adjusting mechanism comprises:

[0014] A ratchet wheel is fixedly connected with one end of the scraper;

[0015] A pawl is rotationally connected with the conveying frame, and the pawl is engaged with the ratchet wheel;

[0016] A driving member is connected with the ratchet wheel at one end, and the driving member is used for driving the ratchet wheel to rotate, so as to drive the scraper to rotate in the first rotation direction, and the pawl is used for stopping the ratchet wheel in the second rotation direction.

[0017] As an optional technical solution of the above-mentioned continuous mesh belt furnace feeding device, two supporting plates are arranged on the conveying frame, the two supporting plates are oppositely arranged along the width direction of the conveying mesh belt, the scraper is arranged between the two supporting plates, both ends of the scraper are respectively provided with rotating shafts, one of the rotating shafts is rotationally connected with the supporting plate, the other rotating shaft penetrates through the supporting plate and is connected with the ratchet wheel, and the pawl is rotationally arranged on the supporting plate.

[0018] As an optional technical solution of the above-mentioned continuous mesh belt furnace feeding device, the driving member comprises a rocker, one end of the rocker is connected with the ratchet wheel, and the position where the rocker is connected with the ratchet wheel is coaxial with the position where the rotating shaft is connected with the ratchet wheel.

[0019] As an optional technical solution of the above-mentioned continuous mesh belt furnace feeding device, the rocker is in a Z-shaped structure; and / or,

[0020] The other end of the rocker is sleeved with a heat insulation sheath.

[0021] As an optional technical solution of the above-mentioned continuous mesh belt furnace feeding device, the pawl is provided with at least two, and the at least two pawls are arranged at intervals along the circumferential direction of the ratchet wheel.

[0022] As an optional technical scheme of the feeding device of the continuous mesh belt furnace, a scale is arranged on the conveying frame, and the scale is used to measure the distance between the edge of the scraper towards the conveying mesh belt and the conveying mesh belt.

[0023] As an optional technical scheme of the feeding device of the continuous mesh belt furnace, two guard plates are arranged on the conveying frame along the width direction of the conveying mesh belt, and the two guard plates are arranged on opposite sides of the conveying mesh belt, and the guard plates are arranged higher than the conveying mesh belt.

[0024] As an optional technical scheme of the feeding device of the continuous mesh belt furnace, two transmission rollers are arranged on the conveying frame along the length direction of the conveying mesh belt at intervals, the two ends of the transmission rollers are rotatably connected with the conveying frame, and the conveying mesh belt is connected with the two transmission rollers, and one of the transmission rollers is connected with a transmission driving member, and the transmission driving member is used to drive the transmission roller to rotate.

[0025] In the second aspect, a continuous mesh belt furnace is provided, which comprises a heating furnace body and the feeding device of the continuous mesh belt furnace, and the heating furnace body is used to heat the material conveyed on the conveying mesh belt.

[0026] The feeding device of the continuous mesh belt furnace has the following beneficial effects:

[0027] The conveying mesh belt of the feeding device of the continuous mesh belt furnace is used to convey the material, the scraper is arranged above the conveying mesh belt, the adjusting mechanism drives the scraper to rotate, the scraper is arranged at an angle with the conveying mesh belt, the distance between the edge of the scraper towards the conveying mesh belt and the conveying mesh belt is realized, and then the thickness of the material on the conveying mesh belt is controlled, when the thickness of the material is greater than the distance between the scraper and the conveying mesh belt, the material contacts with the scraper, the material is moved along with the conveying mesh belt, the material applies force to the scraper, but the scraper is locked in the second rotating direction, the material cannot drive the scraper to rotate in the second rotating direction, part of the material can continue to move through the gap between the scraper and the conveying mesh belt, and part of the material is blocked by the scraper, the material with the thickness less than the distance between the scraper and the conveying mesh belt can be filled, the thickness of the material on the conveying mesh belt is uniform, the material is uniformly heated, and then the quality of the product after the heat treatment of the continuous mesh belt furnace is improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a structural schematic view of the feeding device of the continuous mesh belt furnace provided by the utility model embodiment;

[0029] Figure 2 is Figure 1 the A structure enlarged schematic view of.

[0030] In the drawings:

[0031] 1, conveying mechanism; 2, scraper; 3, adjusting mechanism; 4, scale;

[0032] 11, conveying frame; 12, conveying mesh belt; 13, support plate; 14, guard plate;

[0033] 31, ratchet wheel; 32, pawl; 33, driving member; 331, rocker; 332, heat insulation sheath. DETAILED DESCRIPTION

[0034] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for convenience of description, not all the structures.

[0035] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0036] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0037] In the description of the embodiment, the terms "up", "down", "right", etc. orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in description, and have no special meaning.

[0038] The embodiment provides a continuous mesh belt furnace, which comprises a heating furnace body and a feeding device of the continuous mesh belt furnace, and the heating furnace body is used for heating materials transported by the feeding device of the continuous mesh belt furnace, and the materials can be fastening parts such as screws, terminal blocks and the like or other small components of other shapes, which are not specifically limited here.

[0039] As shown in Figure 1 and Figure 2 , the feeding device of the continuous mesh belt furnace comprises a conveying mechanism 1, a scraper 2 and an adjusting mechanism 3. The conveying mechanism 1 comprises a conveying frame 11 and a conveying mesh belt 12 arranged on the conveying frame 11. The scraper 2 is arranged above the conveying mesh belt 12, extends along the width direction of the conveying mesh belt 12, and both ends of the scraper 2 are rotationally connected with the conveying frame 11. The adjusting mechanism 3 is connected with the scraper 2, and is used for rotating the scraper 2 in a first rotation direction and locking the scraper 2 in a second rotation direction, so as to adjust the distance between the edge of the conveying mesh belt 12 and the scraper 2 extending towards the edge of the conveying mesh belt 12. When the materials transported by the conveying mesh belt 12 contact the scraper 2, the materials have a tendency to rotate the scraper 2 in the second rotation direction. The first rotation direction is opposite to the second rotation direction. The heating furnace body is used for heating the materials transported on the conveying mesh belt 12.

[0040] The conveying mesh belt 12 of the feeding device of the continuous mesh belt furnace provided by the embodiment is used for transporting materials, the conveying mesh belt 12 is provided with the scraper 2 above, the adjusting mechanism 3 rotates the scraper 2, so that the scraper 2 is arranged at an angle with the conveying mesh belt 12, the distance between the edge of the conveying mesh belt 12 and the scraper 2 extending towards the edge of the conveying mesh belt 12 is adjusted, and then the thickness of the materials on the conveying mesh belt 12 is controlled. When the thickness of the materials is greater than the distance between the scraper 2 and the conveying mesh belt 12, the materials contact the scraper 2, and the materials apply force to the scraper 2 as the materials are moved by the conveying mesh belt 12. However, the scraper 2 is locked in the second rotation direction, so the materials cannot push the scraper 2 to rotate in the second rotation direction. Part of the materials will continue to move through the gap between the scraper 2 and the conveying mesh belt 12, and part of the materials are blocked by the scraper 2. The materials with a thickness less than the distance between the scraper 2 and the conveying mesh belt 12 can be filled, the thickness of the materials on the conveying mesh belt 12 is uniform, the materials are uniformly heated, and then the quality of products after heat treatment by the continuous mesh belt furnace is improved.

[0041] In some embodiments, two transmission rollers are arranged on the conveying frame 11 at intervals along the length direction of the conveying mesh belt 12, both ends of the transmission rollers are rotationally connected with the conveying frame 11, and the conveying mesh belt 12 is connected with the two transmission rollers. One of the transmission rollers is connected with a transmission driving member, and the transmission driving member is used for driving the transmission roller to rotate (neither the transmission roller nor the transmission driving member is shown in the figure). The rotation of the transmission roller drives the conveying mesh belt 12 to transmit the materials. The transmission driving member can be a motor, which is not specifically limited here.

[0042] The conveying frame 11 is provided with a guard plate 14 along the width direction of the conveying mesh belt 12, and two guard plates 14 are arranged on the opposite sides of the conveying mesh belt 12. The guard plate 14 is higher than the conveying mesh belt 12, so as to avoid the material from moving out of the conveying mesh belt 12 during the conveying process.

[0043] In some embodiments, considering that the feeding device is close to the heating furnace body and the working environment temperature of the feeding device is high, the scraper 2 is made of a high-temperature-resistant metal material, for example, the scraper 2 is made of stainless steel, so as to ensure that the scraper 2 is reliable in operation and has better thermal stability and corrosion resistance in a high-temperature environment. The scraper 2 will not be deformed due to heating, and the use safety of the feeding device is ensured, and the replacement frequency of the scraper 2 is low.

[0044] The size of the scraper 2 can be set according to the size of the conveying mesh belt 12, and the thickness of the scraper 2 is 2mm-20mm. The scraper 2 rotates around the first rotation direction, and the spacing between the scraper 2 and the conveying mesh belt 12 is adjusted in the range of 3mm-100mm.

[0045] In some embodiments, the adjusting mechanism 3 includes a ratchet wheel 31, a stop pawl 32 and a driving member 33. The ratchet wheel 31 is fixedly connected to one end of the scraper 2, the stop pawl 32 is rotationally connected to the conveying frame 11, and the stop pawl 32 is engaged with the ratchet wheel 31. One end of the driving member 33 is connected to the ratchet wheel 31, and the driving member 33 is used to drive the ratchet wheel 31 to rotate, so as to drive the scraper 2 to rotate around the first rotation direction. The stop pawl 32 is used to stop the ratchet wheel 31 in the second rotation direction. The driving member 33 drives the ratchet wheel 31 to rotate, and then drives the scraper 2 to rotate around the first rotation direction, so as to adjust the spacing between the scraper 2 and the conveying mesh belt 12, so that the spacing is suitable for the thickness of the material conveyed on the conveying mesh belt 12. When the thickness of the material on the conveying mesh belt 12 is less than the spacing between the scraper 2 and the conveying mesh belt 12, the stop pawl 32 is in a loose state. When the thickness of the material on the conveying mesh belt 12 is greater than the spacing between the scraper 2 and the conveying mesh belt 12, the material will contact the scraper 2, and the scraper 2 will be subjected to a force that makes the scraper 2 rotate around the second rotation direction. At this time, the stop pawl 32 locks the ratchet wheel 31, and the ratchet wheel 31 cannot rotate around the second rotation direction, so that the scraper 2 realizes the scraping of the material, and ensures that the thickness of the material on the conveying mesh belt 12 meets the heating requirement. In addition, the cooperation of the stop pawl 32 and the ratchet wheel 31 enables the scraper 2 to have a certain space for movement in the second rotation direction, so as to prevent the scraper 2 from being deformed due to impact during the process of hard contact between the material and the scraper 2. The adjusting mechanism 3 is simple to operate, has high reliability, is simple to maintain in later period, and has wide applicability.

[0046] Further, the conveying frame 11 is provided with two support plates 13, the two support plates 13 are oppositely arranged along the width direction of the conveying mesh belt 12, the scraper 2 is arranged between the two support plates 13, both ends of the scraper 2 are provided with rotating shafts, one rotating shaft is rotationally connected with the support plate 13, the other rotating shaft penetrates the support plate 13 and is connected with the ratchet wheel 31, and the stop pawl 32 is rotationally arranged on the support plate 13. The support plate 13 plays a supporting role in the installation of the scraper 2 and the stop pawl 32, facilitates the fixation of the scraper 2, and facilitates the assembly of the adjusting mechanism 3.

[0047] The driving member 33 comprises a rocker 331, one end of the rocker 331 is connected with the ratchet wheel 31, and the position where the rocker 331 is connected with the ratchet wheel 31 is coaxial with the position where the rotating shaft is connected with the ratchet wheel 31, and manual rocking of the rocker 331 drives the ratchet wheel 31 to rotate. The working environment temperature of the feeding device of the continuous mesh belt furnace is high, the adjusting mechanism 3 is a mechanical structure and does not involve electronic products, is resistant to high temperature, and reduces the cost of later maintenance and use.

[0048] Optionally, the rocker 331 is in a Z-shaped structure, and the leverage principle is used to reduce the resistance in the process of rocking the rocker 331.

[0049] The other end of the rocker 331 is sleeved with a heat insulation sleeve 332, so that the operator is prevented from being scalded during the debugging process. The heat insulation sleeve 332 can be made of rubber, which is not limited in detail here.

[0050] In other some implementable manners, the driving member 33 comprises a driving motor, and the driving motor and the ratchet wheel 31 can be connected through a gear set structure, a synchronous belt structure or a chain wheel and chain structure, so as to increase the distance between the driving motor and the ratchet wheel 31 and reduce the working environment temperature of the driving motor.

[0051] The stop pawl 32 is provided with at least two, and the at least two stop pawls 32 are arranged at intervals along the circumferential direction of the ratchet wheel 31, so as to improve the stability of the working of the adjusting mechanism 3.

[0052] The adjusting mechanism 3 can also be other structures, for example, the adjusting mechanism 3 comprises a rotating wheel, one end of the scraper 2 is connected with the rotating wheel, the rotating wheel is rotationally connected with the conveying frame 11, the rotating wheel is connected with a driving member for driving the rotating wheel to rotate, the rotating wheel is provided with a first positioning hole, the conveying frame 11 is provided with a plurality of second positioning holes, the plurality of second positioning holes are arranged at intervals along the circumferential direction of the rotating wheel, and the rotating wheel is provided with a latch, the latch can penetrate the first positioning hole and be inserted into the second positioning hole. The driving member can drive the rotating wheel to rotate by a certain angle in a first rotation direction, then the rotating wheel cannot rotate through the insertion of the latch into the second positioning hole, and the positioning of the scraper 2 is realized.

[0053] In some embodiments, in order to improve the accuracy of adjusting the distance between the scraper 2 and the conveying mesh belt 12, a scale 4 is arranged on the conveying frame 11, which is used to measure the distance between the edge of the scraper 2 towards the conveying mesh belt 12 and the conveying mesh belt 12. Optionally, the scale 4 is arranged on the support plate 13.

[0054] When the feeding device of the continuous mesh belt furnace provided by the present application is used, the rocker 331 is operated to rotate the ratchet wheel 31 in the first rotation direction. When the distance between the scraper 2 and the conveying mesh belt 12 meets the production requirements, the ratchet wheel 31 is no longer rotated, the pawl 32 is clamped on the teeth of the ratchet wheel 31, the rotation of the ratchet wheel 31 in the second rotation direction is limited, the rotation of the scraper 2 in the second rotation direction is avoided, and the distance between the scraper 2 and the conveying mesh belt 12 is unchanged.

[0055] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A feed arrangement for a continuous mesh belt furnace, characterized in that The utility model relates to a kind of conveying mechanism and the adjusting mechanism of scraper, comprising: Conveying mechanism (1), including conveying frame (11) and the conveying mesh belt (12) being arranged on the conveying frame (11); Scraper (2), is arranged above the conveying mesh belt (12), the scraper (2) extends along the width direction of the conveying mesh belt (12), and both ends of the scraper (2) are rotatably connected with the conveying frame (11); Adjusting mechanism (3) is connected with the scraper (2), and the adjusting mechanism (3) is used for rotating the scraper (2) around the first rotation direction and locking the scraper (2) in the second rotation direction, to adjust the distance between the edge of the conveying mesh belt (12) and the scraper (2) towards the conveying mesh belt (12), when the material conveyed by the conveying mesh belt (12) contacts with the scraper (2), the material has the tendency to rotate the scraper (2) around the second rotation direction; Wherein, the first rotation direction is opposite to the second rotation direction.

2. The feed arrangement for a continuous mesh belt furnace of claim 1, wherein, The adjusting mechanism (3) comprises: Ratchet wheel (31), one end of the ratchet wheel (31) is fixedly connected with the scraper (2); Stop pawl (32), rotatably connected with the conveying frame (11), the stop pawl (32) is engaged with the ratchet wheel (31); Driving member (33), one end of the driving member (33) is connected with the ratchet wheel (31), and the driving member (33) is used to drive the ratchet wheel (31) to rotate, so as to drive the scraper (2) to rotate around the first rotation direction, and the stop pawl (32) is used to stop the ratchet wheel (31) in the second rotation direction.

3. The feed arrangement for a continuous mesh belt furnace of claim 2, wherein, Two support plates (13) are provided on the conveying frame (11), the two support plates (13) are oppositely arranged along the width direction of the conveying mesh belt (12), the scraper (2) is arranged between the two support plates (13), both ends of the scraper (2) are respectively provided with rotating shafts, one of the rotating shafts is rotatably connected with the support plate (13), the other rotating shaft penetrates the support plate (13) and is connected with the ratchet wheel (31), and the stop pawl (32) is rotatably arranged on the support plate (13).

4. The feed arrangement for a continuous mesh belt furnace of claim 3, wherein, The driving member (33) comprises a rocker (331), one end of the rocker (331) is connected with the ratchet wheel (31), and the position where the rocker (331) is connected with the ratchet wheel (31) is coaxial with the position where the rotating shaft is connected with the ratchet wheel (31).

5. The feed arrangement for a continuous mesh belt furnace of claim 4, wherein, The rocker (331) is Z-shaped structure;And / or, The other end of the rocker (331) is sleeved with a heat insulation sheath (332).

6. The continuous web belt furnace feed apparatus of claim 2, wherein, The stop pawl (32) is provided with at least two, and the at least two stop pawls (32) are arranged at intervals along the circumference of the ratchet wheel (31).

7. The feed arrangement for a continuous web belt furnace of claim 1, wherein, A scale (4) is provided on the conveying frame (11), and the scale (4) is used to measure the distance between the edge of the conveying mesh belt (12) and the scraper (2) towards the conveying mesh belt (12).

8. The feed arrangement for a continuous web belt furnace of claim 1, wherein, Two guard plates (14) are respectively provided on the conveying frame (11) along the width direction of the conveying mesh belt (12), the two guard plates (14) are arranged on opposite sides of the conveying mesh belt (12), and the guard plate (14) is higher than the conveying mesh belt (12).

9. The feed arrangement for a continuous web belt furnace of claim 1, wherein, Two transmission rollers are arranged on the conveying frame (11) along the length direction of the conveying mesh belt (12) at intervals, both ends of the transmission rollers are respectively rotatably connected with the conveying frame (11), and the conveying mesh belt (12) is connected with the two transmission rollers, and one of the transmission rollers is connected with a transmission driving member, and the transmission driving member is used for driving the transmission roller to rotate.

10. A continuous mesh belt furnace characterized by, The feeding device comprises a heating furnace body and the continuous mesh belt furnace according to any one of claims 1-9, and the heating furnace body is used for heating the material conveyed on the conveying mesh belt (12).

Images