Saw blade sintering furnace with uniform sintering structure

Abstract

The utility model relates to sintering furnace technical field, the utility model provides a saw blade sintering with sintering furnace that possesses even sintering structure, it includes the peripheral structure for protecting and fixed sintering furnace, the bottom plate of fixed setting in the peripheral structure one end and set up in the peripheral structure and with bottom plate fixed connection's furnace body, the furnace body is inverted cylinder, heating element is provided in the furnace body, the rotating disc is provided in the furnace body. The utility model drives the rotating disc rotation through the rotation of first pivot, the rotating disc drives the rotation of second pivot, and then drives the loading mechanism of top around the rotation of first pivot the axis center, prevents the space heat of furnace body inside not enough even, leads to the heat that different loading mechanism received is different, through above technical scheme, the technical problem that the saw blade temperature of each position in the sintering furnace of prior art is difficult to keep evenness is solved.

Description

Technical Field

[0001] This utility model relates to the field of sintering furnace technology, specifically to a sintering furnace for sintering saw blades with a uniform sintering structure. Background Technology

[0002] In industrial fields such as stone processing and metal cutting, saw blades are core cutting tools, and their performance directly determines cutting efficiency, precision, and service life. During the saw blade forming process, the sintering process is crucial. Through high-temperature sintering, wear-resistant cutting tips such as diamond and cubic boron nitride are tightly bonded to the metal matrix, forming a stable cutting structure. The sintering furnace, as the core equipment in this process, directly affects the sintering quality of the saw blade due to the uniformity of its sintering temperature field, its heat preservation stability, and its heat transfer efficiency.

[0003] Currently, most mainstream saw blade sintering furnaces on the market adopt traditional box-type or tunnel-type structures. In practical applications, due to limitations in equipment design and thermal field control technology, they generally suffer from several technical challenges, making it difficult to meet the production requirements of high-precision saw blades. For example, uneven sintering temperature distribution leads to poor saw blade quality consistency. Traditional sintering furnaces often use sidewall heating or top-concentrated heating for heating elements, with heat transfer within the furnace cavity mainly occurring through air convection and furnace wall radiation. This design easily causes temperature differences in different areas within the furnace cavity, especially for larger saw blades (e.g., diameter exceeding 1 meter) or multi-layered stacked saw blades, where the temperature difference between the edge and center, and between the upper and lower layers, can reach 10-20℃. Uneven temperature leads to inconsistent sintering degrees between the saw blade tip and the substrate: some areas experience over-sintering, resulting in coarse grains and reduced wear resistance; other areas are under-sintered, causing low bonding strength between the tip and the substrate, making the tip prone to detachment during use and severely affecting the batch quality stability of the saw blades.

[0004] Therefore, this utility model provides a sintering furnace for sintering saw blades with a uniform sintering structure to solve the above problems. Utility Model Content

[0005] To overcome the above-mentioned defects, this utility model provides a sintering furnace for saw blade sintering with a uniform sintering structure, which solves the technical problem of temperature uniformity inside the sintering furnace in the prior art.

[0006] According to one aspect, at least one embodiment of the present invention provides a sintering furnace for sintering saw blades with a uniform sintering structure, comprising an outer structure for protecting and fixing the sintering furnace, a bottom plate fixedly disposed at one end of the outer structure, and a furnace body disposed within the outer structure and fixedly connected to the bottom plate. The furnace body is in the shape of an inverted cylinder, a heating element is disposed inside the furnace body, a rotating disk is disposed inside the furnace body, and a plurality of loading mechanisms for placing saw blade blanks are disposed on the rotating disk. The end of the rotating disk away from the loading mechanism passes through the bottom plate and is fixedly connected to a first rotating shaft. Both the rotating disk and the first rotating shaft are made of heat-insulating material.

[0007] For example, in a sintering furnace for saw blade sintering with a uniform sintering structure provided in at least one embodiment of the present invention, the furnace body is further provided with a first heat insulation layer covering the interior of the furnace body, the first heat insulation layer being in contact with the furnace body, and the heating element being fixedly disposed on the side of the first heat insulation layer away from the furnace body.

[0008] For example, in a sintering furnace for saw blade sintering with a uniform sintering structure provided in at least one embodiment of the present invention, the heating elements are respectively disposed at the top center of the furnace body and at the inner side wall of the furnace body, and the heating elements located at the inner side wall are distributed in a ring array.

[0009] For example, in a sintering furnace for saw blade sintering with a uniform sintering structure provided in at least one embodiment of the present invention, a second heat insulation layer is provided on the side of the bottom plate facing the furnace body, and the second heat insulation layer is fitted on the rotating disk.

[0010] For example, in a sintering furnace for sintering saw blades with a uniform sintering structure provided in at least one embodiment of the present invention, a notch is formed at the bottom position of the rotating disk sidewall and the first heat insulation layer, and the second heat insulation layer extends into the notch.

[0011] For example, in a sintering furnace for saw blade sintering with a uniform sintering structure provided in at least one embodiment of the present invention, a heat equalization cylinder in the shape of an inverted cylinder is provided between the first heat insulation layer and the loading mechanism, and the bottom edge of the heat equalization cylinder extends into the notch.

[0012] For example, in at least one embodiment of the present invention, a sintering furnace for saw blade sintering with a uniform sintering structure is provided, further comprising: a loading mechanism arranged in a ring array on the top of the rotating disk; the loading mechanism comprising two structural plates with circular cross-sections, a support rod disposed between the two structural plates, a plurality of fixed frames arranged in a ring array on the support rod, an inclined guide plate arranged in a vertical array within the fixed frames, and a vertical rod disposed around the support rod for inserting and fixing the saw blade; the lower structural plate is fixedly connected to the support rod and the vertical rod respectively; the upper structural plate is fitted onto the support rod and threadedly connected to the support rod; the vertical rod is disposed between the two fixed frames; and the support rod is coaxially arranged with the two structural plates.

[0013] For example, in a sintering furnace for sintering saw blades with a uniform sintering structure provided in at least one embodiment of the present invention, a plurality of placement plates for supporting saw blades are fitted on the vertical rod, and the placement plates are threadedly connected to the vertical rod.

[0014] For example, in a sintering furnace for saw blade sintering with a uniform sintering structure provided in at least one embodiment of the present invention, a fixing frame is fixedly provided on the side of the bottom plate away from the furnace body, a first motor is provided on the fixing frame, and one end of the first rotating shaft passes through the fixing frame and is fixedly connected to the output end of the first motor.

[0015] For example, in a sintering furnace for saw blade sintering with a uniform sintering structure provided in at least one embodiment of the present invention, a plurality of second rotating shafts are fixedly arranged at the bottom of the lower structural plate at the axial center position. The second rotating shafts are rotatably inserted into the rotating disk. A plurality of second motors are fixedly arranged on the side of the rotating disk away from the structural plate. The end of the second rotating shaft away from the structural plate extends out of the rotating disk and is fixedly connected to the output end of the second motor. The second rotating shaft is made of heat-insulating material.

[0016] The beneficial effects of the embodiments of this utility model are as follows: 1. This utility model incorporates a first motor that drives a first rotating shaft to rotate, which in turn drives a rotating disk to rotate. The rotating disk then drives a second rotating shaft to rotate, which in turn drives the top loading mechanism to rotate around the axis of the first rotating shaft. This prevents uneven heat distribution within the furnace body, which would result in different loading mechanisms receiving different amounts of heat. Simultaneously, the second motor rotates, driving a second rotating shaft, which in turn drives the structural plate, support rod, and vertical rod to rotate around the first rotating shaft. This prevents uneven heat distribution within the space enclosed by the loading mechanism, which would result in uneven heat distribution to the saw blades located inside and outside the same loading mechanism.

[0017] 2. By setting a fixed frame, during the rotation process, the guide plate on the fixed frame drives the airflow inside the heat equalizing cylinder to flow upward or downward in a uniform manner. At this time, the airflow at the center position inside the heat equalizing cylinder flows in the opposite direction. The airflow inside the heat equalizing cylinder circulates continuously, which can enhance the uniformity of heat in the space inside the heat equalizing cylinder. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0019] Figure 1 This is an overall elevation view of a sintering furnace for sintering saw blades with a uniform sintering structure in one embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the internal structure of a sintering furnace for sintering saw blades with a uniform sintering structure is shown in the embodiment. Figure 3 for Figure 1 A cross-sectional view of a sintering furnace for sintering saw blades with a uniform sintering structure in one embodiment; Figure 4 for Figure 1 A schematic diagram of the loading mechanism of a sintering furnace for sintering saw blades with a uniform sintering structure in one embodiment; Figure 5 for Figure 1 A cross-sectional view of the loading mechanism of a sintering furnace for sintering saw blades with a uniform sintering structure in one embodiment. In the diagram: 1. External structure; 2. Base plate; 3. Furnace body; 31. First insulation layer; 32. Heating element; 33. Second insulation layer; 331. Notch; 34. Heat equalizing cylinder; 4. Rotating disk; 41. First rotating shaft; 42. First motor; 43. Second rotating shaft; 44. Second motor; 5. Loading mechanism; 51. Structural plate; 52. Support rod; 53. Fixing frame; 54. Guide plate; 55. Vertical rod; 56. Placement plate; 6. Fixing frame. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0021] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0022] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] like Figures 1 to 5As shown, a sintering furnace for saw blade sintering with a uniform sintering structure is provided in one embodiment of the present invention. It includes an outer structure 1 for protecting and fixing the sintering furnace, a bottom plate 2 fixedly disposed at one end of the outer structure 1, and a furnace body 3 disposed inside the outer structure 1 and fixedly connected to the bottom plate 2. The furnace body 3 is in the shape of an inverted cylinder. A heating element 32 is disposed inside the furnace body 3. A rotating disk 4 is disposed inside the furnace body 3. A plurality of loading mechanisms 5 for placing saw blade blanks are disposed on the rotating disk 4. The end of the rotating disk 4 away from the loading mechanism 5 passes through the bottom plate 2 and is fixedly connected to a first rotating shaft 41. Both the rotating disk 4 and the first rotating shaft 41 are made of heat-insulating material. Specifically, the rotation of the first rotating shaft 41 drives the rotating disk 4 to rotate, the rotating disk 4 drives the second rotating shaft 43, and in turn drives the loading mechanism 5 at the top to rotate around the axis where the first rotating shaft 41 is located, so as to prevent the heat inside the furnace body 3 from being uneven, resulting in different loading mechanisms 5 receiving different amounts of heat.

[0027] In some examples, the furnace body 3 is covered with a first heat insulation layer 31, which is attached to the furnace body 3. The heating element 32 is fixedly disposed on the side of the first heat insulation layer 31 away from the furnace body 3. The first heat insulation layer 31 has a heat insulation effect to prevent heat from spreading and causing the furnace body 3 to fail to reach the specified operating temperature.

[0028] In some examples, the heating elements 32 are respectively located at the top center of the furnace body 3 and at the inner side wall of the furnace body 3. The heating elements 32 located at the inner side wall are arranged in a ring array, which can make the distance from the center of the furnace body 3 to each heating element 32 equal, so as to uniformly heat the objects inside the furnace body 3.

[0029] In some examples, the bottom plate 2 is provided with a second heat insulation layer 33 on the side facing the furnace body 3. The second heat insulation layer 33 is fitted onto the rotating disk 4 to prevent heat leakage at the bottom.

[0030] In some examples, a notch 331 is formed around the side wall of the rotating disk 4 and the bottom of the first heat insulation layer 31, and the second heat insulation layer 33 extends into the notch 331, which can increase the sealing of the device and prevent heat leakage.

[0031] In some examples, an inverted cylindrical heat-dissipating cylinder 34 is provided between the first heat insulation layer 31 and the loading mechanism 5. The bottom edge of the heat-dissipating cylinder 34 extends into the notch 331. The heat-dissipating cylinder 34 is made of metal material, which can effectively transfer heat and make the heat inside the heat-dissipating cylinder 34 more uniform.

[0032] In some examples, the loading mechanism 5 is arranged in a ring array on the top of the rotating disk 4. The loading mechanism 5 includes two circular cross-section structural plates 51, a support rod 52 disposed between the two structural plates 51, a plurality of fixed frames 53 arranged in a ring array on the support rod 52, inclined guide plates 54 arranged in a vertical array within the fixed frames 53, and vertical rods 55 disposed around the support rod 52 for inserting and fixing saw blades. The lower structural plate 51 is fixedly connected to the support rod 52 and the vertical rod 55 respectively, and the upper structural plate 51 is fitted onto the support rod 52 and threadedly connected to the support rod 52. The vertical rod 55 is disposed between the two fixed frames 53, and the support rod 52 is coaxially arranged with the two structural plates 51. Specifically, by rotating to loosen the threads, the structural plate 51 located above the support rod 52 is removed, and the saw blade blank is connected and fixed on the vertical rod 55. The rotation of the loading mechanism 5 itself can prevent uneven heat distribution in the inner and outer spaces enclosed by the loading mechanism 5, which would cause uneven heat distribution to the saw blades located in the same inner and outer positions of the loading mechanism 5. During the rotation, the guide plate 54 on the fixed frame 53 drives the airflow inside the heat equalization cylinder 34 to flow uniformly upward or downward. At this time, the airflow at the center position inside the heat equalization cylinder 34 flows in the opposite direction. The airflow inside the heat equalization cylinder 34 circulates continuously, which can enhance the uniformity of heat distribution in the space inside the heat equalization cylinder 34.

[0033] In some examples, the vertical rod 55 is fitted with a plurality of placement plates 56 for supporting the saw blade, and the placement plates 56 are threadedly connected to the vertical rod 55; Specifically, when using the sintering furnace, the structural plate 51 located above the support rod 52 and the placement plate 56 on the vertical rod 55 are removed by rotating to loosen the threads. The saw blade blanks are then placed on the placement plate 56 and connected to the vertical rod 55 one after another by threads. In order to increase the uniformity of sintering saw blades, the placement plate 56 can be arranged in an array on the vertical rod 55 during connection, so that the saw blade blanks on the placement plate 56 are arranged in an array on the vertical rod 55.

[0034] In some examples, a mounting frame 6 is fixedly installed on the side of the base plate 2 away from the furnace body 3. A first motor 42 is installed on the mounting frame 6. One end of the first rotating shaft 41 passes through the mounting frame 6 and is fixedly connected to the output end of the first motor 42. The first motor 42 drives the first rotating shaft 41 to rotate.

[0035] In some examples, a number of second rotating shafts 43 are fixedly installed at the bottom of the lower structural plate 51 at the axial center position. The second rotating shafts 43 are rotatably inserted into the rotating disk 4. A number of second motors 44 are fixedly installed on the side of the rotating disk 4 away from the structural plate 51. The end of the second rotating shaft 43 away from the structural plate 51 extends out of the rotating disk 4 and is fixedly connected to the output end of the second motor 44. The second rotating shaft 43 is made of heat-insulating material. The number of second motors 44 is the same as the number of second rotating shafts 43 and corresponds one-to-one. The second motors 44 drive the second rotating shafts 43 to rotate, thereby driving the lower structural plate 51 to rotate, and driving the entire loading mechanism 5 to rotate.

[0036] Working principle and usage process of this utility model: The outer structure 1 is used to fix the sintering furnace. When the sintering furnace is in use, the threads are loosened by rotating, and the structural plate 51 above the support rod 52 and the placement plate 56 on the vertical rod 55 are removed. The saw blade blanks are placed on the placement plate 56 and then successively connected to the vertical rod 55 by threads. To increase the uniformity of the sintered saw blades, the placement plates 56 can be arranged in an array on the vertical rod 55 during connection, so that the saw blade blanks on the placement plates 56 are arranged in an array on the vertical rod 55. After the upper structural plate 51 is threaded and all parts of the sintering furnace are fixed, the space inside the furnace body 3 is heated by the heating element 32. The first heat insulation layer 31 and the second heat insulation layer 33 can prevent heat diffusion and leakage. The second heat insulation layer 33 extends into the notch 331 to enhance the sealing. The heat equalization cylinder 34 is made of metal material, which can transfer heat well and make the heat inside the heat equalization cylinder 34 more uniform. At the same time, the first motor 42 The first rotating shaft 41 is driven to rotate, which in turn drives the rotating disk 4 to rotate. The rotating disk 4 drives the second rotating shaft 43, which in turn drives the top loading mechanism 5 to rotate around the axis of the first rotating shaft 41. This prevents uneven heat distribution inside the furnace body 3, which would result in different loading mechanisms 5 receiving different amounts of heat. At the same time, the second motor 44 is rotated, which drives the second rotating shaft 43, which in turn drives the structural plate 51, support rod 52, and vertical rod 55 to rotate around the first rotating shaft 41. This prevents uneven heat distribution within the space enclosed by the loading mechanisms 5, which would result in uneven heat distribution to the saw blades located inside and outside the same loading mechanism 5. During the rotation, the guide plate 54 on the fixed frame 53 drives the airflow inside the heat equalizing cylinder 34 to flow uniformly upward or downward. At this time, the airflow at the center of the heat equalizing cylinder 34 flows in the opposite direction. The airflow inside the heat equalizing cylinder 34 circulates continuously, which can enhance the uniformity of heat distribution within the heat equalizing cylinder 34.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A sintering furnace for sintering saw blades with a uniform sintering structure, characterized in that: The furnace includes an outer structure (1) for protecting and fixing the sintering furnace, a base plate (2) fixedly installed at one end of the outer structure (1), and a furnace body (3) installed inside the outer structure (1) and fixedly connected to the base plate (2). The furnace body (3) is in the shape of an inverted cylinder. A heating element (32) is installed inside the furnace body (3). A rotating disk (4) is installed inside the furnace body (3). Several loading mechanisms (5) for placing saw blade blanks are installed on the rotating disk (4). The end of the rotating disk (4) away from the loading mechanism (5) passes through the base plate (2) and is fixedly connected to a first rotating shaft (41). Both the rotating disk (4) and the first rotating shaft (41) are made of heat-insulating material.

2. The sintering furnace for sintering saw blades with a uniform sintering structure according to claim 1, characterized in that: The furnace body (3) is covered with a first heat insulation layer (31), which is attached to the furnace body (3). The heating element (32) is fixedly disposed on the side of the first heat insulation layer (31) away from the furnace body (3).

3. A sintering furnace for sintering saw blades with a uniform sintering structure according to claim 2, characterized in that: The heating elements (32) are respectively located at the top center of the furnace body (3) and on the inner side wall of the furnace body (3), and the heating elements (32) located on the inner side wall are arranged in a ring array.

4. A sintering furnace for sintering saw blades with a uniform sintering structure according to claim 2, characterized in that: The bottom plate (2) is provided with a second heat insulation layer (33) on the side facing the furnace body (3), and the second heat insulation layer (33) is fitted on the rotating disk (4).

5. A sintering furnace for sintering saw blades with a uniform sintering structure according to claim 4, characterized in that: A notch (331) is formed on the side wall of the rotating disk (4) and at the bottom of the first heat insulation layer (31), and the second heat insulation layer (33) extends into the notch (331).

6. A sintering furnace for sintering saw blades with a uniform sintering structure according to claim 5, characterized in that: A heat equalization cylinder (34) in the shape of an inverted cylinder is provided between the first heat insulation layer (31) and the loading mechanism (5), and the bottom edge of the heat equalization cylinder (34) extends into the notch (331).

7. A sintering furnace for sintering saw blades with a uniform sintering structure according to claim 1, characterized in that: The loading mechanism (5) is arranged in a ring array on the top of the rotating disk (4). The loading mechanism (5) includes two structural plates (51) with circular cross sections, a support rod (52) arranged between the two structural plates (51), a number of fixed frames (53) arranged in a ring array on the support rod (52), a guide plate (54) arranged in a vertical direction within the fixed frame (53) and a vertical rod (55) arranged around the support rod (52) for inserting and fixing the saw blade. The lower structural plate (51) is fixedly connected to the support rod (52) and the vertical rod (55) respectively. The upper structural plate (51) is fitted on the support rod (52) and threadedly connected to the support rod (52). The vertical rod (55) is arranged between the two fixed frames (53). The support rod (52) is coaxially arranged with the two structural plates (51).

8. A sintering furnace for sintering saw blades with a uniform sintering structure according to claim 7, characterized in that: The vertical rod (55) is fitted with several placement plates (56) for supporting the saw blade, and the placement plates (56) are threadedly connected to the vertical rod (55).

9. A sintering furnace for sintering saw blades with a uniform sintering structure according to claim 7, characterized in that: A fixed frame (6) is fixedly installed on the side of the base plate (2) away from the furnace body (3). A first motor (42) is installed on the fixed frame (6). One end of the first rotating shaft (41) passes through the fixed frame (6) and is fixedly connected to the output end of the first motor (42).

10. A sintering furnace for sintering saw blades with a uniform sintering structure according to claim 7, characterized in that: The bottom of the structure plate (51) located below is fixedly provided with several sets of second rotating shafts (43) at the axial position. The second rotating shafts (43) are rotatably inserted into the rotating disk (4). Several second motors (44) are fixedly provided on the side of the rotating disk (4) away from the structure plate (51). The end of the second rotating shaft (43) away from the structure plate (51) extends out of the rotating disk (4) and is fixedly connected to the output end of the second motor (44). The second rotating shaft (43) is made of heat insulation material.

Images