TWI861378B - Processing component conveying device - Google Patents

Abstract

This case provides a processing component conveying device for a sintering furnace, which includes a conveyor belt and a plurality of supporting bridges. The conveyor belt is a mesh structure and has a conveyor surface. The conveyor belt has a first area and a second area extending along the length direction of the conveyor belt. The plurality of supporting bridges include a first group of supporting bridges arranged in the first area of the conveyor surface, and a second group of supporting bridges arranged in the second area of the conveyor surface. The first group of supporting bridges and the second group of supporting bridges are arranged along the length direction of the conveyor belt, respectively. Each of the plurality of supporting bridges includes an outer leg, an inner leg and a beam. The outer leg and the inner leg extend from the conveyor belt to a direction away from the conveyor surface, respectively. The beam spans the outer leg and the inner leg, and the beam is inclined from the inside to the outside toward a direction away from the conveyor surface. The conveying device in this case can be applied to processing parts of different sizes.

Description

Processing parts conveyor

The present invention relates to a processing component conveying device, in particular to a processing component conveying device used in a sintering furnace.

The sintering furnace is used to sinter and photoprocess the processing parts, such as processing the wafers of PERC solar cells. The sintering furnace is equipped with a conveying device, a sintering processing device and a photoprocessing device. The conveying device is used to send the processing parts to be processed into the sintering furnace, and then send the processing parts out after the sintering furnace processing. During the processing procedure, the processing parts are always on the conveying device, and the sintering processing device and the photoprocessing device process the processing parts on the conveying device. When the processing parts leave the sintering furnace, the processing procedure is completed.

The present invention provides a conveying device for conveying processing parts in a sintering furnace, which can adapt to processing parts of different sizes. The processing part conveying device includes: a conveyor belt and a plurality of supporting bridges; the conveyor belt is a mesh structure and has a conveying surface, the conveyor belt has a first side edge and a second side edge that are relatively arranged and extend along the length direction of the conveyor belt, the conveying surface has a first area and a second area that are respectively close to the first side edge and the second side edge and extend along the length direction of the conveyor belt, and a central area located between the first area and the second area; the plurality of supporting bridges include a first group of supporting bridges arranged in the first area of the conveying surface, and a first group of supporting bridges arranged in the second area of the conveying surface. Two groups of supporting bridges, wherein the first group of supporting bridges and the second group of supporting bridges are arranged along the length direction of the conveyor belt respectively, each of the plurality of supporting bridges comprises a beam portion and an outer leg, the beam portion comprises an inner end close to the central area and an outer end far from the central area, the outer leg connects the outer end to the conveyor belt, and the beam portion is inclined from the inner end to the outer end toward a direction far from the conveying surface; wherein the beam portion of each supporting bridge of the first group of supporting bridges and the beam portion of each supporting bridge of the second group of supporting bridges are configured to jointly support processing components with a width within a certain range.

As in the aforementioned conveying device, the outer ends of the beams of each supporting bridge of the first group of supporting bridges jointly form a first outer edge portion, and the outer ends of the beams of each supporting bridge of the second group of supporting bridges jointly form a second outer edge portion, and the distance between the first outer edge portion and the second outer edge portion accounts for more than 90% of the width of the conveyor belt.

As in the aforementioned conveying device, the beam portion includes at least one step portion, and the at least one step portion includes a working section and a connecting section, the connecting section is connected to the top of the working section, and the inclination angle of the connecting section relative to the conveying surface is greater than the inclination angle of the working section relative to the conveying surface, so as to form a bending portion between the connecting section and the working section.

As in the aforementioned conveying device, the inclination angle of the connecting section relative to the conveying surface is between 80° and 90°.

As in the aforementioned conveying device, the bent portion of at least one step of each supporting bridge of the first group of supporting bridges jointly forms a first side supporting portion, and the bent portion of at least one step of each supporting bridge of the second group of supporting bridges jointly forms a second side supporting portion, the first side supporting portion and the second side supporting portion are symmetrically arranged relative to the middle area, and the first side supporting portion and the second side supporting portion are configured to jointly support a processing component.

As in the aforementioned conveying device, the at least one step comprises an upper step, a middle step and a lower step connected in sequence, so that the bottom of the working section of the upper step is connected to the top of the connecting section of the middle step, and the bottom of the working section of the middle step is connected to the top of the connecting section of the lower step; the bend of the upper step of the first group of supporting bridges forms a first side upper supporting portion, the bend of the middle step of the first group of supporting bridges forms a first side middle supporting portion, and the bend of the lower step of the first group of supporting bridges forms a first side The lower supporting portion, the bending portion of the upper step of the second group of supporting bridges forms a second upper side supporting portion, the bending portion of the middle step of the second group of supporting bridges forms a second middle side supporting portion, the bending portion of the lower step of the first group of supporting bridges forms a second lower side supporting portion, the first upper side supporting portion and the second upper side supporting portion are symmetrically arranged relative to the central area, the first middle side supporting portion and the second middle side supporting portion are symmetrically arranged relative to the central area, and the first lower side supporting portion and the second lower side supporting portion are symmetrically arranged relative to the central area.

As in the aforementioned conveying device, the working section of the upper step and the working section of the middle step are inclined at a first inclination angle relative to the conveying surface, and the working section of the lower step is inclined at a second inclination angle relative to the conveying surface, and the second inclination angle is greater than the first inclination angle.

As in the aforementioned conveying device, the height of the connecting section extending in a direction perpendicular to the conveying surface is not less than the first height.

As in the aforementioned processing component conveying device, the distance from the top of the working section of the lower step to the conveying surface is not less than the first predetermined distance, and the distance from the top of the working section of the upper step to the conveying surface is not more than the second predetermined distance.

As in the aforementioned processing component conveying device, the first upper side support portion and the second upper side support portion are configured to jointly support processing components with a width within a first range, the first middle side support portion and the second middle side support portion are configured to jointly support processing components with a width within a second range, and the first lower side support portion and the second lower side support portion are configured to jointly support processing components with a width within a third range.

As in the aforementioned processing component conveying device, each of the plurality of supporting bridges further includes an inner leg, the inner leg connects the inner end to the conveyor belt, and the beam portion spans over the outer leg and the inner leg.

As in the aforementioned processing component conveying device, the beam portion of each supporting bridge of the first group of supporting bridges jointly forms a first side supporting surface, and the beam portion of each supporting bridge of the second group of supporting bridges jointly forms a second side supporting surface, and the first side supporting surface and the second side supporting surface can jointly support the processing component.

As in the aforementioned processing component conveying device, the first side supporting surface has a first inner side portion, the second side supporting surface has a second inner side portion, and the distance between the first inner side portion and the second inner side portion is less than a third predetermined distance.

As in the aforementioned processing component conveying device, the distance between the first inner side portion and the second inner side portion and the conveying surface is greater than a fourth predetermined distance.

As in the aforementioned processing component conveying device, the outer leg forms a sharp angle with the conveying surface; the inner leg forms a sharp angle with the conveying surface.

As in the aforementioned processing component conveying device, in the length direction of the conveyor belt, each supporting bridge in the first group of supporting bridges and each supporting bridge in the second group of supporting bridges are arranged alternately.

As in the aforementioned processing component conveying device, the projection of the beam portion on the conveying surface of the conveyor belt forms an angle with the width direction of the conveyor belt.

As in the aforementioned processing component conveying device, in the conveying direction of the conveyor belt, the outer end of each of the plurality of supporting bridges is located in front of the inner end.

As in the aforementioned processing component conveying device, each of the plurality of supporting bridges is integrally formed of metal wire, the conveyor belt is made of metal mesh, and each of the plurality of supporting bridges is welded to the conveyor belt.

As in the aforementioned processing component conveying device, the distance between adjacent supporting bridges in each of the first group of supporting bridges and the second group of supporting bridges is greater than the fifth predetermined distance.

The conveying device provided in this case includes a conveying belt element, wherein the conveying belt element has two sets of supporting bridges, and the two sets of supporting bridges form two sets of supporting surfaces, which can convey processing parts of different sizes. The sintering furnace using the conveying device provided in this case can process processing parts of different sizes.

Various specific embodiments of the present invention will be described below with reference to the accompanying drawings which form part of this specification. It should be understood that although directional terms such as "front", "back", "up", "down", "left", "right" and the like are used in the present invention to describe various exemplary structural parts and components, these terms are used here only for the purpose of convenience of explanation and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be set in different directions, these directional terms are only used as an illustration and should not be regarded as limiting.

FIG. 1A is a three-dimensional diagram of a sintering furnace 100, FIG. 1B is a cross-sectional diagram of the sintering furnace in FIG. 1A, and FIG. 1C is an exploded diagram of the sintering furnace 100 in FIG. 1A, illustrating the structure of the sintering furnace 100. The sintering furnace 100 is used to complete the sintering, light treatment and other processes of processing parts (such as solar cell wafers). FIG. 1A-FIG. 1B are used to illustrate the conveying device of the sintering furnace, and other internal components are omitted. As shown in FIG. 1A and FIG. 1B, the sintering furnace 100 includes a shell 102 and a conveying device 103. The housing 103 includes an upper portion 131, a lower portion 132, a first side portion 133, and a second side portion 134, wherein the upper portion 131, the first side portion 133, the lower portion 132, and the second side portion 134 are sequentially connected to form a box body with two openings at both ends, so that the housing 102 has a front opening 141 and a rear opening 142. The conveying device 103 passes through the front opening 141 and the rear opening 142 of the housing 103, and has a certain distance from the upper portion 131, so that a conveying channel 105 can be formed between the conveying device 103 and the upper portion 131 of the housing. The conveying channel 105 has a conveying channel inlet 151 and a conveying channel outlet 152. The processed parts can be transported by the transport device 103 , thereby entering the sintering furnace 100 from the transport channel inlet 151 , and then leaving the sintering furnace 100 from the transport channel outlet 152 .

The conveying device 103 includes a conveyor belt element 125, a tensioning wheel 126, and a plurality of rollers 128. The conveyor belt assembly 125 is in a flat belt shape and forms a closed ring. The conveyor belt element 125 has an inner surface 155 and an outer surface 156. The plurality of rollers 128 are arranged on the inner side of the conveyor belt element 125 and contact the inner surface 155 of the conveyor belt element, so as to support the conveyor belt element 125 and guide the conveying direction of the conveyor belt assembly 125. The tensioning wheel 126 is arranged on the outer side of the conveyor belt element 125 and contact the outer surface 156, and the tensioning wheel 126 can move to adjust the tension of the conveyor belt assembly 125. The two conveyor belt elements 125 arranged side by side in the sintering furnace 100 shown in the present case are used to transport two processing parts simultaneously to improve production efficiency. In some embodiments, one or more conveyor belt elements 125 may also be arranged in the sintering furnace 100.

FIG. 2 is a perspective view of a conveyor belt element 125 in FIG. 1C , illustrating the structure of the conveyor belt element 125. The conveyor belt assembly 125 is supported by a plurality of rollers 128 to form an irregular ring, and the conveyor belt element 125 includes a conveyor belt element upper portion 208, a conveyor belt assembly lower portion 209, and a pair of conveyor belt assembly side portions 211 and 212. The conveyor belt element upper portion 208 extends in a horizontal direction, so that the outer surface 156 of the conveyor belt element upper portion 208 can carry and transport processing components. The conveyor belt element 125 has a conveying surface 205, and the conveying surface 205 has an inlet end 231 near the conveying channel inlet 151 and an outlet end 232 near the conveying channel outlet 152. The conveyor belt assembly 125 can be driven by the roller 128 to rotate in the clockwise direction as shown in FIG. 2 , so that the processing parts placed on the conveying surface 205 can enter the sintering furnace 100 from the conveying channel inlet 151 and then be sent out from the conveying channel outlet 152 .

The conveyor belt element 125 is formed of a mesh structure with a plurality of meshes. In the shell 103 of the sintering furnace 100, processing devices are provided above and below the conveying surface 205 for processing the processing parts, such as a heat treatment device, a light treatment device, etc. The processing parts are processed in the process of being transmitted by the conveying device 103 and passing through the sintering furnace 100. In the process of light treatment of the processing parts, both the upper surface and the lower surface of the processing parts are irradiated by the light source to complete the surface treatment of the processing parts. The upper surface of the processing parts directly receives the irradiation from the light source from the upper part, while the lower surface of the processing parts receives the irradiation from the light source through the mesh of the conveyor belt element 125. Therefore, the structural design of the conveyor belt element 125 takes into account both strength and light transmittance.

The conveyor belt assembly 125 includes a conveyor belt 228 and a plurality of supporting bridges 250, wherein the conveyor belt 228 is in the shape of a flat strip, and the upper surface of the conveyor belt 228 constitutes a conveying surface 205. The conveyor belt 228 has a first side edge 241 and a second side edge 242 extending along the length direction of the conveyor belt 228. A first region 251 extending along the length direction of the conveyor belt 228 is provided near the first side edge 241, and a second region 252 extending along the length direction of the conveyor belt 228 is provided near the second side edge 242, and a central region 253 is provided between the first region 251 and the second region 252. The first area 251 and the second area 252 are respectively provided with a plurality of supporting bridges 250. The plurality of supporting bridges in the first area 251 form a first group of supporting bridges 261, and the plurality of supporting bridges 250 in the second area 252 form a second group of supporting bridges 262. The first group of supporting bridges 261 are arranged at intervals along the length direction of the conveyor belt 228. Similarly, the second group of supporting bridges 262 are arranged along the length direction of the conveyor belt 228.

Fig. 3 is a schematic diagram of a first embodiment of a supporting bridge of the conveyor belt 228 in Fig. 2, illustrating the structure of the supporting bridge. As shown in Fig. 3, the supporting bridge 250 includes an outer leg 311, an inner leg 312, and a beam 313. The beam 313 has an inner end 331 and an outer end 332, and the outer leg 311 and the inner leg 312 extend from the conveyor belt 228 in a direction away from the conveying surface 205, respectively. The beam 313 straddles the outer leg 311 and the inner leg 312, that is, the outer end 332 and the inner end 331 of the beam 313 are connected to the top of the outer leg 311 and the inner leg 312, respectively. In the first group of supporting bridges 261, the outer leg 311 of each supporting bridge is closer to the first side edge 241 of the conveyor belt 228 than the inner leg 312. In the second group of supporting bridges 262, the outer leg 311 of each supporting bridge is closer to the second side edge 242 of the conveyor belt 228 than the inner leg 312. The height of the outer leg 311 relative to the conveying surface 205 is greater than the height of the inner leg 312 relative to the conveying surface 205, that is, the height of the connection point between the outer leg 311 and the beam 313 relative to the conveying surface 205 is greater than the height of the connection point between the inner leg 312 and the beam 313 relative to the conveying surface 205, so that the beam 313 tilts from the inside to the outside toward a direction away from the conveying surface 205.

As shown in FIG3 , the outer leg 311 and the inner leg 312 extend obliquely from the conveying surface 205 toward the beam 313. That is, the outer leg 311 and the inner leg 312 form a sharp angle with the conveying surface 205 directly below the beam 313, which is beneficial to the forming of the supporting bridge and the stability of the supporting bridge structure. In some embodiments of the present case, only the beam and the outer leg may be included, and the inner end of the beam extends to connect with the conveyor belt 228. In the embodiment without the inner leg, the first inner part and the second inner part are formed by the beam of the corresponding supporting bridge.

As shown in FIG3 , the supporting bridge 250 further includes an outer leg extension 321 and an inner leg extension 322, wherein the outer leg extension 321 extends from the bottom of the outer leg 311 toward a direction away from the inner leg 312, and the inner leg extension 322 extends from the bottom of the inner leg 312 toward a direction away from the outer leg 312. The outer leg extension 321 and the inner leg extension 322 are respectively used to connect to the conveyor belt 228.

In this embodiment, the supporting bridge 250 is made of metal wire in one piece, the conveyor belt 228 is made of metal mesh, and the supporting bridge 250 is connected to the conveyor belt 228 by welding.

It should be noted that, in the embodiment of the present case, the height of the outer leg 311 of each supporting bridge 250 and the height of the inner leg 312 of each supporting bridge 250 can be set to be different. This is because the outer leg extension 321 and the inner leg extension 322 can be welded at different positions of the conveyor belt 228. For example, in the present embodiment, the height of the outer leg 311 and the height of the inner leg 312 of each supporting bridge of the first group of supporting bridges 261 are respectively smaller than the height of the outer leg 311 and the height of the inner leg 312 of each supporting bridge of the second group of supporting bridges 262. This is because the connection point between the outer leg extension 321 and the inner leg extension 322 of each supporting bridge of the first group of supporting bridges 261 and the conveyor belt 228 is located on the upper surface of the conveyor belt 228, while the connection point between the outer leg extension 321 and the inner leg extension 322 of each supporting bridge of the second group of supporting bridges 262 and the conveyor belt 228 is located on the lower surface of the conveyor belt 228; when the first group of supporting bridges 261 and the second group of supporting bridges 262 are both connected to the conveyor belt 228, the outer legs 311 and the inner legs 312 of the first group of supporting bridges 261 and the second group of supporting bridges 262 are at the same height relative to the conveyor surface 205.

The distance between adjacent supporting bridges in each of the first group of supporting bridges 261 and the second group of supporting bridges 262 is greater than a predetermined distance. In one embodiment, the predetermined distance is in the range of 50-55 mm. In another embodiment, the predetermined distance is 53.4 mm. The predetermined distance is set to ensure that the distance between adjacent supporting bridges is as large as possible under the premise of ensuring that the processing parts will not fall from the supporting bridges 250, that is, the arrangement of the supporting bridges is as sparse as possible to reduce the obstruction of the light from below the conveying surface 205.

FIG4 is a cross-sectional view of the conveyor belt assembly of the first embodiment of the present invention in FIG2 in the width direction, illustrating the structure of the conveyor belt element. Combining FIG2 and FIG4, the beam portion 313 of each supporting bridge of the first group of supporting bridges 261 together forms a first side supporting surface 411, and the beam portion 313 of each supporting bridge of the second group of supporting bridges 262 together forms a second side supporting surface 412. The processing component is supported by the first side supporting surface 411 and the second side supporting surface 412, that is, the two side edges of the processing component are in contact with the first side supporting surface 411 and the second side supporting surface 412, respectively, so that a certain distance is formed between the processing component and the conveying surface 205 to prevent the lower surface of the processing component from contacting the conveying surface 205 and affecting the smoothness of the lower surface of the processing component. The first side supporting surface 411 and the second side supporting surface 412 are gradually raised from the inside to the outside relative to the conveying surface 205. The portion of the first side supporting surface 411 farthest from the conveying surface 205 is a first outer edge portion 421, and the first outer edge portion 421 is formed by the outer end 332 of the beam portion 313 of each supporting bridge of the first group of supporting bridges 261; the portion of the first side supporting surface 411 closest to the conveying surface 205 is a first inner portion 431, and the first inner portion 431 is formed by the inner end 331 of each supporting bridge of the first group of supporting bridges 261. The portion of the second side supporting surface 412 farthest from the conveying surface 205 is the second outer edge portion 422, which is formed by the outer end 332 of the beam portion 313 of each supporting bridge of the second group of supporting bridges 262; the portion of the second side supporting surface 412 closest to the conveying surface 205 is the second inner portion 432, which is formed by the inner end 331 of each supporting bridge of the first group of supporting bridges 262.

The distance between the first outer edge portion 421 and the second outer edge portion 422 accounts for more than 90% of the width of the conveyor belt 228. In some embodiments, the distance between the first outer edge portion 421 and the second outer edge portion 422 is substantially equal to the width of the conveyor belt 228. In this embodiment, the distance between the first outer edge portion 421 and the second outer edge portion 422 is greater than 230 mm, so that the conveyor belt element 125 can be applied to processing parts with a width of 230 mm and less.

The distance between the first inner portion 431 and the second inner portion 432 is less than a predetermined distance. In one embodiment of the present invention, the predetermined distance is 150 mm. In another embodiment of the present invention, the predetermined distance is 145 mm. The setting of the predetermined distance enables the conveyor belt assembly 125 to be applicable to processing parts with a width of 156 mm or more.

The arrangement of the first side supporting surface 411 and the second side supporting surface 412 of the conveying device 103 provided in the present case enables the conveyor belt element 125 to convey processing components of any size with a width between 156 mm and 230 mm, such as solar cell wafers.

The distance between the first inner portion 431 and the second inner portion 432 and the conveying surface 205 is greater than a predetermined distance. In an embodiment of the present case, the predetermined distance is 8 mm. The setting of the predetermined distance enables a certain distance to be formed between the processing component and the conveying surface 205, thereby avoiding the lower surface of the processing component from contacting the conveying surface 205 as much as possible, and allowing the lower surface of the processing component to receive light more evenly.

FIG5 is a partial bottom view of the upper portion 208 of the conveyor belt element in FIG2, illustrating the positional relationship between adjacent supporting bridges. As shown in FIG5, the conveying direction of the conveyor belt assembly 125 is from top to bottom. The conveyor belt 228 has a plurality of meshes 301, so that the light source below the conveyor belt 228 can pass through the meshes 301 to illuminate the lower surface of the processing part. In the length direction of the conveyor belt element 125, each supporting bridge in the first group of supporting bridges 261 and each supporting bridge in the second group of supporting bridges 262 are arranged alternately. The projection of the beam portion 313 of each supporting bridge 250 on the conveying surface 205 of the conveyor belt 228 forms an angle with the width direction of the conveyor belt 228, that is, the projection of the beam portion 313 of each supporting bridge 250 on the conveying surface 205 of the conveyor belt 228 is not perpendicular to the length direction of the conveyor belt 228. In the conveying direction of the conveyor belt 228, the outer leg 311 of each supporting bridge 250 is located in front of the corresponding inner leg 312. In other words, looking vertically downward from the upper surface of the conveyor belt element 125, the upper projection of the beam portion 313 of each supporting bridge 250 on the conveying surface 205 extends obliquely from the inside to the outside toward the conveying direction of the conveyor belt 228. Such a configuration can make the contact area between the supporting bridge 250 and the processing component larger, so that the processing component is more stable during the transmission process and is not easy to shift or fall.

Fig. 6 is a three-dimensional view of the tension wheel 126 of the sintering furnace in Fig. 1B. As shown in Fig. 6, the tension wheel 126 is generally cylindrical in appearance and has a head 604, a body 603 and a tail 602, and the head 604 and the tail 602 are respectively connected to the two ends of the body 603. The diameter of the head 604 is the same as the diameter of the tail 602, and the diameter of the body 603 is larger than the diameter of the head 604 and the diameter of the tail 602. Combined with Fig. 1B, the tension wheel contacts the outer side of the conveyor belt element 125, so that the body 603 contacts the conveying surface 205 between the first group of supporting bridges 261 and the second group of supporting bridges 262. The head portion 604 and the tail portion 602 are in contact with the first set of supporting bridges 261 and the second set of supporting bridges 262 respectively.

The tension wheel 126 has a hollow channel 607 for mounting a shaft, and the tension wheel 126 can rotate around the shaft. And the tension wheel 126 can be driven by the shaft to move in a certain direction, thereby adjusting the tension of the conveyor belt element 125.

FIG. 7 is a cross-sectional view of the sintering furnace in the present case. As shown in FIG. 7 , a pair of support bars 701 and 702 are respectively provided below each of the two conveyor belt elements 125, and the support bars 701 and 702 extend along the conveying direction of the conveyor belt assembly 125. The two sides of the support bar 701 in the vertical direction are in contact with the lower portion 132 of the housing 102 and the outer side of the conveyor belt element 125, respectively, so as to support the conveyor belt element 125. In the horizontal direction, the distance between the pair of support bars 701 and 702 is not more than a predetermined distance, so that the pair of support bars 701 and 702 are in contact with the conveying surface 205 between the first group of support bridges 261 and the second group of support bridges 262. The predetermined distance ranges from 90 to 140 mm. In one embodiment of the present invention, the predetermined distance is 100 mm. The predetermined distance is set so that the contact point between the pair of support bars 701 and 702 and the conveyor belt element 125 is located between the first set of support bridges 261 and the second set of support bridges 262, but does not directly contact the first set of support bridges 261 and the second set of support bridges 262.

FIG8 is a schematic diagram of a second embodiment of a supporting bridge 850 for the conveyor belt 228 in FIG2. The shape of the supporting bridge 850 shown in FIG8 is different from the shape of the supporting bridge 250 shown in FIG3. As shown in FIG8, the supporting bridge 850 has an outer leg 811 and a beam 813, and the outer leg 811 extends from the conveyor belt 228 in a direction away from the conveying surface 205. The beam 813 has an outer end 832 and an inner end 831, wherein the outer end 832 is connected to the outer leg 811 through the transition portion 823, and the inner end 831 is connected to the conveyor belt 228. The inner end 831 is substantially flush with the conveying surface 205, and the outer end 832 is higher than the conveying surface 205, so that the beam portion 813 extends from the inner end 831 to the outer end 832 in a direction away from the conveying surface 205. In one embodiment of the present case, the supporting bridge 850 may also include an inner leg of the supporting bridge in the embodiment shown in FIG. 3.

The beam portion 813 includes an upper step portion 851, a middle step portion 852 and a lower step portion 853, and the upper step portion 851, the middle step portion 852 and the lower step portion 853 are sequentially connected from top to bottom. The upper step portion 851 includes a connecting section 841 and a working section 842, the middle step portion 852 includes a connecting section 843 and a working section 844, and the lower connecting section includes a connecting section 845 and a working section 846. The top of the connecting section 841 of the upper step 851 is connected to the transition section 823, the bottom of the connecting section 841 of the upper step 851 is connected to the top of the working section 842 of the upper step 851, the bottom of the working section 842 of the upper step 851 is connected to the top of the connecting section 843 of the middle step 852; the bottom of the connecting section 843 of the middle step 852 is connected to the middle step 852. The top of the working section 846 of the upper step 846 is connected, the bottom of the working section 844 of the middle step 852 is connected to the top of the connecting section 845 of the lower step 853; the bottom of the connecting section 845 of the lower step 853 is connected to the top of the working section 846 of the lower step 853, and the bottom of the working section 846 of the lower step 853 is connected to the conveyor belt 228. In other words, each step includes a connecting section and a working section, and the connecting section of each step is connected to the working section of the adjacent step. In other embodiments of the present case, the beam portion may also include other numbers of steps to accommodate different types of processing components. The working section of each step is used to support the processing parts, and the connecting section is used to prevent the processing parts from tilting.

The connecting section 841, the connecting section 843 and the connecting section 845 all extend in a direction substantially perpendicular to the conveying surface 205, and the angle β between the connecting section 841, the connecting section 843 and the connecting section 845 and the conveying surface 205 is 80°-90°. In an embodiment of the present case, the angle β is 90°. The working section 842, the working section 844 and the working section 846 all extend obliquely relative to the conveying surface 205, wherein the angle α1 between the working section 842 and the conveying surface 205 and the angle α2 between the working section 844 and the conveying surface 205 are both between 13°-20°, and the angle α3 between the working section 846 and the conveying surface 205 is between 15°-25°. In an embodiment of the present case, the angle α1 and the angle α2 are both 15°, and the angle α3 is 20°. In the upper step 851, the connecting section 841 and the working section 842 have different inclination angles, so that a bend 871 is formed between the connecting section 841 and the working section 842, and the bend 871 is recessed toward the conveying surface 205 and the outer leg 811, so that the side of the bend 871 away from the conveying surface 205 forms a recess 863. Similarly, the middle step 852 has a bend 872, which forms a recess 864, and the lower step 853 has a bend 873, which forms a recess 865.

In the present case, the height of the connecting section 841, the connecting section 843 and the connecting section 845 in the direction perpendicular to the conveying surface 205 is not less than 2.5 mm. In an embodiment of the present case, the height of the connecting section 841, the connecting section 843 and the connecting section 845 is 3 mm. The setting of the distance makes it difficult for the processing part to slide relative to the connecting section 841, the connecting section 843 and the connecting section 845 to reach the top of each of the connecting section 841, the connecting section 843 and the connecting section 845. The distance from the top of the working section 846 of the lower step 853 to the conveying surface 205 is not less than 7 mm. In an embodiment of the present case, the distance from the top of the working section 846 of the lower step 853 to the conveying surface 205 is 8 mm. The setting of the predetermined distance enables a certain distance to be formed between the processing component and the conveying surface 205, thereby avoiding the lower surface of the processing component from contacting the conveying surface 205 as much as possible, and allowing the lower surface of the processing component to receive light more evenly. The distance from the top of the working section 842 of the upper step 851 to the conveying surface 205 is no more than 30 mm. In an embodiment of the present case, the distance from the top of the working section 842 of the upper step 851 to the conveying surface 205 is 21 mm-23 mm. The setting of the distance keeps the distance between the processing component and the conveying surface 205 within a certain range, avoiding the distance between the processing component and the conveying surface 205 being too far.

As shown in FIG8 , the supporting bridge 850 further includes an outer leg extension 821 and a beam extension 822, wherein the outer leg extension 821 extends from the bottom of the outer leg 811 toward a direction away from the beam 813, and the beam extension 822 extends from the inner end of the beam 813 toward a direction away from the outer leg 811. The outer leg extension 821 and the beam extension 822 are respectively used to connect to the conveyor belt 228.

In this embodiment, the supporting bridge 850 is made of metal wire in one piece, the conveyor belt 228 is made of metal mesh, and the supporting bridge 850 is connected to the conveyor belt 228 by welding.

FIG9 is a cross-sectional view of the conveyor belt element of the second embodiment of the present case in FIG8 in the width direction. In combination with FIG8 and FIG9, the bent portion 871 of the upper step portion 851 of each supporting bridge of the first group of supporting bridges 961 forms a first side upper supporting portion 912, the bent portion 872 of the middle step portion 852 of each supporting bridge of the first group of supporting bridges 961 forms a first side middle supporting portion 913, and the bent portion 873 of the lower step portion 853 of each supporting bridge of the first group of supporting bridges 961 forms a first side upper supporting portion 914. Similarly, the bent portion 871 of the upper step portion 851 of each supporting bridge of the second group of supporting bridges 962 forms a second side upper supporting portion 916, the bent portion 872 of the middle step portion 852 of each supporting bridge of the second group of supporting bridges 962 forms a second side middle supporting portion 917, and the bent portion 873 of the lower step portion 853 of each supporting bridge of the second group of supporting bridges 962 forms a second side upper supporting portion 918. The first side upper support part 912 and the second side upper support part 916 are symmetrical structures, which can jointly support processing parts with a width of 200mm-210mm. The first side middle support part 913 and the second side middle support part 917 are symmetrical structures, which are configured to jointly support processing parts with a width of 180-190mm. The first side lower support part 914 and the second side lower support part 918 are symmetrical structures, which are configured to jointly support processing parts with a width of 160-170mm. In an embodiment of the present case, the conveying assembly shown in FIG. 9 can support processing parts with a width of 166mm, 182mm and 210mm.

In this case, the distance between the first support bridge 961 and the second support bridge 962 can be adjusted according to the width of the processing part. For example, in another embodiment of this case, the first side upper support part 912 and the second side upper support part can jointly support the processing part with a width between 220mm-240mm, the first side middle support part 913 and the second side middle support part 917 are symmetrical structures, and are configured to jointly support the processing part with a width between 200-210mm, and the first side lower support part 914 and the second side lower support part 918 are symmetrical structures, and are configured to jointly support the processing part with a width between 180-190mm.

As shown in FIG. 9 , the outer end 832 of the beam 813 of each supporting bridge of the first group of supporting bridges 961 forms a first side outer edge 921, and the outer end 832 of the beam 813 of each supporting bridge of the second group of supporting bridges 962 forms a second side outer edge 922, and the distance between the first side outer edge 921 and the second side outer edge 922 accounts for more than 90% of the width of the conveyor belt 228. In some embodiments, the distance between the first side outer edge 921 and the second side outer edge 922 is approximately equal to the width of the conveyor belt 228. In one embodiment of the present invention, the distance between the first side outer edge portion 921 and the second side outer edge portion 922 is greater than 210 mm. In another embodiment of the present invention, the distance between the first side outer edge portion 921 and the second side outer edge portion 922 is greater than 230 mm.

In this embodiment, the two sides of the processing component in the width direction abut against the respective corresponding supporting parts of the first supporting bridge 961 and the second supporting bridge 962, and a gap is formed between the lower surface of the processing component and the conveying surface to prevent the lower surface of the processing component from contacting the conveying surface 205 and affecting the smoothness of the lower surface of the processing component. The width of the processing component matches the width between the corresponding supporting parts of the first supporting bridge 961 and the second supporting bridge 962, so that the processing component is not easy to tilt on the first supporting bridge 961 and the second supporting bridge 962.

FIG10 is a cross-sectional view of the conveyor belt element and the processing component located on the conveyor belt element of the second embodiment in the width direction. FIG10 introduces the technical effect of this embodiment with a processing component 1001 matching the width between the first side lower support portion 914 and the second side lower support portion 918. As shown in FIG10, the processing component 1001 is located between the first side lower support portion 914 and the second side lower support portion 918, so that there is a certain distance between the lower surface of the processing component and the conveying surface 205. The first side lower support portion 914 includes a first side lower limit portion 1025 and a first side lower working portion 1027, and the first side lower limit portion 1025 and the first side lower working portion 1027 are respectively formed by the connecting section 845 and the working section 846 of the lower step portion 853 of the plurality of support bridges 850 of the first group of support bridges 961. The second side lower support portion 916 includes a second side lower limit portion 1026 and a second side lower working portion 1028, and the second side lower limit portion 1026 and the second side lower working portion 1028 are respectively formed by the connecting section 845 and the working section 846 of the lower step portion 853 of the plurality of support bridges 850 of the second group of support bridges 962. The width of the processing component 1001 is slightly smaller than the distance between the first side limit portion 1025 and the second side limit portion 1026. When the processing component 1001 is transported on the conveyor belt 228, the first end 1011 and the second end 1012 of the processing component 1001 in the width direction abut against the first side lower working portion 1027 and the second side lower working portion 1028 respectively, and the processing component 1001 is substantially parallel to the conveying surface 205. During the transportation process of the processing component 1001 on the conveyor belt 228, the first end 1011 and the second end 1012 of the processing component 1001 in the width direction are restricted by the first side limiter 1025 and the second side limiter 1026 and cannot tilt significantly, so that the distance between the lower surface of the processing component 1001 and the conveying surface 205 is roughly equal during the transportation process, so that the lower surface of the processing component 1001 can be evenly illuminated. Similarly, the first side upper support portion 912 and the second side upper support portion 916 can support processing components within a certain width range and prevent the processing components from tilting during the transportation process. The first side middle support portion 913 and the second side upper support portion 917 can support processing parts within a certain width range and prevent the processing parts from tilting during the transportation process.

In the embodiment shown in FIG8-9, the distance between adjacent supporting bridges in each of the first group of supporting bridges 961 and the second group of supporting bridges 962 ranges from 30 to 70 mm. In another embodiment, the predetermined distance is 35 mm.

The supporting bridge of the conveying device in this case only contacts the edge of the processing part, so that the processing part forms a smooth lower surface. The conveying device provided in this case can convey processing parts of different sizes, so that the sintering furnace can process processing parts of different sizes. The structural design of the supporting bridge of the conveying device can ensure that processing parts of different sizes can form a reasonable distance with the conveying surface to ensure that the lower surface of the processing part receives sufficient light. And during the conveying process, the processing part is not easy to slide relative to the conveying device. The conveyor belt in this case is suitable for processing parts within a certain width range to prevent the processing parts from tilting during the conveying process.

Although only some features of the present invention are illustrated and described herein, many modifications and changes are possible for those skilled in the art. It should be understood that the attached claims are intended to cover all such modifications and changes that fall within the spirit of the present invention.

100: Sintering furnace

102: Shell

103: Transport device

105:Transmission channel

125: Conveyor belt element

126: Tensioner wheel

128: Roller

131: Upper part

132: Lower part

133: First side 134: Second side 141: Front opening 142: Rear opening 151: Conveyor channel entrance 152: Conveyor channel exit 155: Inner surface 156: Outer surface 1 205: Conveyor surface 208: Upper part of conveyor belt element 209: Lower part of conveyor belt assembly 211: Conveyor belt assembly side 212: Conveyor belt assembly side 228: Conveyor belt 231: Inlet end 232: Exit end 241: First side edge 242: Second side edge 250: Support bridge 251: First area 252: Second area 253: Central area 261: First set of support bridges 262: Second set of support bridges 301: Mesh 311: Outer leg 312: Inner leg 313: Beam 321: Outer leg extension 322: Inner leg extension 331: Inner end 332: Outer end 411: First side support surface 412: Second side support surface 421: First outer edge =Part 422: Second outer edge 431: First inner side 432: Second inner side 602: Tail 603: Body 604: Head 607: Channel 701: Support bar 702: Support bar 811: Outer leg 813: Beam 821: Outer leg extension 822: Beam extension 823: Transition 831: Inner end 832: Outer end 841: Connecting section 842: Working section 843: Connecting section 844: Working section Section 845: Connecting section 846: Working section 850: Support bridge 851: Upper step section 852: Middle step section 853: Lower step section 863: Recess 864: Recess 865: Recess 871: Bend section 872: Bend section 873: Bend section 912: Upper support section on the first side 913: Middle support section on the first side 914: Lower support section on the first side 916: Upper support section on the second side 917: Middle support section on the second side

918: Second lower side support

921: First side outer edge

922: Second side outer edge

961: The first set of supporting bridges

962: The second set of supporting bridges

1001: Processing parts

1011: First end

1012: Second end

1025: Lower limit portion on the first side

1026: Second side lower limiter

1027: First side lower working part

1028: Second side lower working part

α1: Angle of intersection

α2: Angle of intersection

α3: Angle of intersection

β: Angle of intersection

FIG. 1A is a three-dimensional view of a sintering furnace; FIG. 1B is a cross-sectional view of the sintering furnace in FIG. 1A; FIG. 1C is an exploded view of the sintering furnace in FIG. 1A; FIG. 2 is a three-dimensional view of a conveyor belt assembly in FIG. 1C; FIG. 3 is a schematic view of a first embodiment of a supporting bridge of the conveyor belt in FIG. 2; FIG. 4 is a cross-sectional view of the conveyor belt assembly in FIG. 2 in the width direction; and FIG. 5 is a bottom view of a portion of the upper portion of the conveyor belt element in FIG. 2 ; FIG. 6 is a three-dimensional view of the tensioning wheel of the sintering furnace in FIG. 1B; FIG. 7 is a cross-sectional view of the sintering furnace in FIG. 1A; FIG. 8 is a schematic view of a second embodiment of a supporting bridge of the conveyor belt in FIG. 2; FIG. 9 is a cross-sectional view of the conveyor belt element in the second embodiment of the present case in the width direction; FIG. 10 is a cross-sectional view of the conveyor belt element and the processing parts located on the conveyor belt element in the second embodiment in the width direction.

Domestic storage information (please note in the order of storage institution, date, and number) None Foreign storage information (please note in the order of storage country, institution, date, and number) None

832: Outer end

871: Bend

872: Bend

873: Bend

912: First side upper support part

913: First side middle support

914: First side lower support part

916: Second upper side support

917: Second side middle support

918: Second lower side support

921: First side outer edge

922: Second side outer edge

961: The first set of supporting bridges

962: The second set of supporting bridges

Claims (19)

A conveying device for conveying a processed component in a sintering furnace, characterized in that it comprises: a conveyor belt, the conveyor belt is a mesh structure and has a conveying surface, the conveyor belt has a first side edge and a second side edge that are oppositely arranged and extend along the length direction of the conveyor belt, and the conveying surface has a first area that is respectively close to the first side edge and the second side edge and extends along the length direction of the conveyor belt and a second area, and a central area between the first area and the second area; and a plurality of supporting bridges, the plurality of supporting bridges comprising a first group of supporting bridges arranged in the first area of the conveying surface, and a second group of supporting bridges arranged in the second area of the conveying surface, the first group of supporting bridges and the second group of supporting bridges being arranged along the length direction of the conveying belt, respectively, and each of the plurality of supporting bridges The invention relates to a bridge system comprising a beam portion and an outer leg, wherein the beam portion comprises an inner end close to the central region and an outer end far from the central region, the outer leg connects the outer end to the conveyor belt, and the beam portion is inclined from the inner end to the outer end in a direction away from the conveyor surface; wherein the beam portion of each supporting bridge of the first group of supporting bridges and the beam portion of each supporting bridge of the second group of supporting bridges are configured as follows: Commonly support processing parts with a width within a certain range, wherein the beam portion includes at least one step portion, the at least one step portion includes a working section and a connecting section, the connecting section is connected to the top of the working section, and the inclination angle of the connecting section relative to the conveying surface is greater than the inclination angle of the working section relative to the conveying surface, so as to form a bend between the connecting section and the working section. The conveying device of claim 1, wherein: the outer ends of the beams of each supporting bridge of the first group of supporting bridges jointly form a first outer edge, and the outer ends of the beams of each supporting bridge of the second group of supporting bridges jointly form a second outer edge, and the distance between the first outer edge and the second outer edge accounts for more than 90% of the width of the conveyor belt. A conveying device as claimed in claim 1, wherein: the inclination angle of the connecting section relative to the conveying surface is between 80° and 90°. The conveying device of claim 1, wherein: the bend of at least one step of each supporting bridge of the first group of supporting bridges jointly forms a first side supporting portion, the bend of at least one step of each supporting bridge of the second group of supporting bridges jointly forms a second side supporting portion, the first side supporting portion and the second side supporting portion are symmetrically arranged relative to the middle area, and the first side supporting portion and the second side supporting portion are configured to jointly support the processing component. The conveying device of claim 4, wherein: the at least one step comprises an upper step, a middle step and a lower step connected in sequence, so that the bottom of the working section of the upper step is connected to the top of the connecting section of the middle step, and the bottom of the working section of the middle step is connected to the top of the connecting section of the lower step; the bend of the upper step of the first group of supporting bridges forms a first side upper support, the bend of the middle step of the first group of supporting bridges forms a first side middle support, and the bend of the lower step of the first group of supporting bridges forms a first side middle support. A side lower support portion, the bend of the upper step of the second group of supporting bridges forms a second side upper support portion, the bend of the middle step of the second group of supporting bridges forms a second side middle support portion, and the bend of the lower step of the first group of supporting bridges forms a second side lower support portion; the first side upper support portion and the second side upper support portion are symmetrically arranged relative to the central area, the first side middle support portion and the second side middle support portion are symmetrically arranged relative to the central area, and the first side lower support portion and the second side lower support portion are symmetrically arranged relative to the central area. A conveying device as claimed in claim 5, wherein: the working section of the upper step and the working section of the middle step are inclined at a first inclination angle relative to the conveying surface, and the working section of the lower step is inclined at a second inclination angle relative to the conveying surface, and the second inclination angle is greater than the first inclination angle. A conveying device as claimed in claim 4, wherein: the height of the connecting section extending in a direction perpendicular to the conveying surface is not less than the first height. As in claim 5, the processing component conveying device, wherein: the distance from the top of the working section of the lower step to the conveying surface is not less than the first predetermined distance, and the distance from the top of the working section of the upper step to the conveying surface is not more than the second predetermined distance. The processing component conveying device of claim 5, wherein: the first upper side support portion and the second upper side support portion are configured to jointly support processing components with a width within a first range, the first middle side support portion and the second middle side support portion are configured to jointly support processing components with a width within a second range, and the first lower side support portion and the second lower side support portion are configured to jointly support processing components with a width within a third range. As in claim 1, the processing component conveying device, wherein: each of the plurality of supporting bridges further comprises an inner leg, the inner leg connects the inner end to the conveyor belt, and the beam portion spans over the outer leg and the inner leg. As in claim 1, the processing component conveying device, wherein: the beam portion of each supporting bridge of the first group of supporting bridges jointly forms a first side supporting surface, and the beam portion of each supporting bridge of the second group of supporting bridges jointly forms a second side supporting surface, and the first side supporting surface and the second side supporting surface can jointly support the processing component. As in claim 11, the processing component conveying device, wherein: the first side support surface has a first inner side portion, the second side support surface has a second inner side portion, and the distance between the first inner side portion and the second inner side portion is less than a third predetermined distance. A processing component conveying device as claimed in claim 12, wherein: the distance between the first inner side portion and the second inner side portion and the conveying surface is greater than a fourth predetermined distance. As in claim 1, the processing component conveying device, wherein: The outer leg and the conveying surface form a sharp angle; the inner leg and the conveying surface form a sharp angle. As in claim 1, the processing component conveying device, wherein: in the length direction of the conveyor belt, each supporting bridge in the first group of supporting bridges and each supporting bridge in the second group of supporting bridges are arranged alternately. As in claim 1, the processing component conveying device, wherein: the projection of the beam portion on the conveying surface of the conveyor belt forms an angle with the width direction of the conveyor belt. As in claim 1, the processing component conveying device, wherein: in the conveying direction of the conveyor belt, the outer end of each of the plurality of supporting bridges is located in front of the inner end. As in claim 1, the processing component conveying device, wherein: each of the plurality of supporting bridges is integrally formed of metal wire, the conveyor belt is made of metal mesh, and each of the plurality of supporting bridges is welded to the conveyor belt. The processing component conveying device of claim 1, wherein: the distance between adjacent supporting bridges in each of the first group of supporting bridges and the second group of supporting bridges is greater than the fifth predetermined distance.

Images