CN220448743U

CN220448743U - Belt line

Info

Publication number: CN220448743U
Application number: CN202321987258.6U
Authority: CN
Inventors: 张勇; 卢其; 胡艳东; 周宏业; 许有财; 彭家乐
Original assignee: Shenzhen Headquarter SC New Energy Technology Corp
Current assignee: Shenzhen Headquarter SC New Energy Technology Corp
Priority date: 2023-07-26
Filing date: 2023-07-26
Publication date: 2024-02-06
Anticipated expiration: 2033-07-26

Abstract

The utility model discloses a belt line which comprises a section bar, a driving wheel assembly, a driven wheel assembly and a belt, wherein a limiting groove is formed in the upper surface of the section bar along the length direction, the driving wheel assembly comprises a driving wheel, the driving wheel is rotatably connected to one end of the section bar, a first guide bulge is arranged on the driving wheel, first tooth parts are arranged on two sides of the first guide bulge, the driven wheel assembly comprises a driven wheel, the driven wheel is rotatably connected to the other end of the section bar, a second guide bulge is arranged on the driven wheel, second tooth parts are arranged on two sides of the second guide bulge, the belt is sleeved on the driving wheel, the section bar and the driven wheel, the lower end of the belt above the section bar is slidably connected in the limiting groove, a guide groove is formed in the inner side of the belt, the first guide bulge and the second guide bulge extend into the guide groove, a third tooth part is arranged on two sides of the guide groove, and the third tooth part is meshed with the first tooth part and the second tooth part. The belt line of this application embodiment has dual direction function, and the belt transportation is difficult for rocking.

Description

Belt line

Technical Field

The utility model relates to the technical field of graphite boat transportation, in particular to a belt line.

Background

With the increasing development of the photovoltaic energy industry, the demand of solar cell production equipment for productivity is continuously rising, and the linear conveying belt line is an indispensable component on the solar cell production equipment. When the demand increases, ensuring the running precision and the manufacturing cost of the conveyor belt line is the most critical step in the production of solar cells, and is quite important for the cost and the productivity of equipment and the stability of the process. In the existing conveying belt line, the section bar supporting the belt line is biplane, the flange-free belts at two ends of the section bar are easy to shake, and the graphite boat trays conveyed on the belt are easy to collide.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a belt line, which solves the problems that in the existing conveying belt line, a section bar for supporting the belt line is double-plane, the two ends of the section bar are free of flange belts and easy to shake, and a graphite boat tray conveyed on the belt is easy to collide.

According to an embodiment of the present utility model, a belt line includes:

the upper surface of the profile is provided with a limit groove along the length direction of the profile;

the driving wheel assembly comprises a driving wheel, the driving wheel is rotationally connected to one end of the section bar, a first guide bulge is arranged in the middle of the outer side of the driving wheel along the circumferential direction, and first tooth parts are arranged on two sides of the first guide bulge;

the driven wheel assembly comprises a driven wheel, the driven wheel is rotatably connected to the other end of the section bar, a second guide protrusion is arranged in the middle of the outer side of the driven wheel along the circumferential direction, and second tooth parts are arranged on two sides of the second guide protrusion;

the belt, the cover is established the action wheel the section bar with on the follow driving wheel, be located the lower extreme sliding connection of belt of section bar top is in the spacing inslot, the belt inboard is followed the length direction of belt is provided with the guide way, first direction protruding with the second direction protruding all stretches into in the guide way, the guide way both sides are provided with third tooth portion, third tooth portion with first tooth portion with the second tooth portion all meshes.

The belt line provided by the embodiment of the utility model has at least the following beneficial effects:

the action wheel rotates and drives the belt and rotate, drive from the driving wheel and rotate, first direction protruding and the protruding guide way that all stretches into of second direction are protruding, first direction protruding and the guide way that can give the belt direction of second, the section bar top is provided with the spacing groove, the lower extreme sliding connection of the belt that is located the section bar top is in the spacing inslot, two lateral walls of spacing groove can give the belt direction, action wheel and follow the driving wheel can give the belt middle part direction, the section bar can give the belt both sides direction, dual direction for the belt transportation process is difficult for rocking, the graphite boat tray of transportation is difficult for colliding on the belt, the belt running accuracy is high, the operation is stable.

According to some embodiments of the utility model, the driving wheel assembly further comprises a driving bearing seat, a driving shaft and a driving bearing, wherein a first mounting hole is formed in the driving bearing seat, the driving bearing is installed in the first mounting hole, a connecting hole is formed in the driving wheel, the driving shaft penetrates through an inner ring of the driving bearing and the connecting hole, and the driving bearing seat is detachably connected to one end of the section bar.

According to some embodiments of the utility model, the drive wheel assembly further comprises a motor connection plate integrally formed with the drive bearing housing.

According to some embodiments of the utility model, the driven wheel assembly further comprises a driven shaft, a driven bearing and a driven connecting plate, wherein a second mounting hole is formed in the driven wheel, the driven bearing is mounted in the second mounting hole, the driven shaft penetrates through the inner ring of the driven bearing, the driven connecting plate is detachably connected to one end of the section bar, an adjusting assembly is arranged on the driven connecting plate and connected with the driven shaft, and the adjusting assembly is used for adjusting the distance between the driven shaft and the driving wheel assembly.

According to some embodiments of the utility model, the driven connecting plate is provided with a long slot hole, the driven shaft penetrates through the long slot hole, one end, far away from the driving wheel assembly, of the driven connecting plate is provided with a first threaded hole communicated with one end of the long slot hole, the other end, close to the long slot hole, of the driven connecting plate is provided with a connecting protrusion, the connecting protrusion is provided with a second threaded hole, the adjusting assembly comprises a first adjusting screw and a second adjusting screw, the first adjusting screw is in threaded connection with the first threaded hole, the second adjusting screw is in threaded connection with the second threaded hole, and the first adjusting screw and the second adjusting screw are abutted against two opposite sides of the driven shaft.

According to some embodiments of the utility model, a first clamping groove is formed in the middle of the outer side of the driving wheel in the circumferential direction, a first hoop is detachably arranged in the first clamping groove, the first hoop is sleeved on the driving wheel to form the first guide protrusion, a second clamping groove is formed in the middle of the outer side of the driven wheel in the circumferential direction, a second hoop is detachably arranged in the second clamping groove, and the second hoop is sleeved on the driven wheel to form the second guide protrusion.

According to some embodiments of the utility model, the drive wheel assembly further comprises a drive powder receiving box, the drive powder receiving box comprises a drive powder receiving groove with an upward opening, the drive powder receiving box is arranged below the drive wheel, the driven wheel assembly further comprises a driven powder receiving box, the driven powder receiving box comprises a driven powder receiving groove with an upward opening, and the driven powder receiving box is arranged below the driven wheel.

According to some embodiments of the utility model, the limit groove is T-shaped, and a supporting strip is arranged in the limit groove and abuts against the belt.

According to some embodiments of the utility model, T-shaped grooves are formed in two opposite sides of the profile, a plurality of T-shaped sliding blocks are slidably arranged in the T-shaped grooves, third threaded holes are formed in the T-shaped sliding blocks, and the driving wheel assembly and the driven wheel assembly are connected with the T-shaped sliding blocks through screws.

According to some embodiments of the present utility model, two fixing bases and blocking installation bases are connected between the two profiles, the fixing bases comprise an integrally formed fixing base plate, two fixing vertical plates and two fixing rib plates, the two fixing vertical plates are respectively and vertically connected to two ends of the fixing base plate, the fixing rib plates are vertically connected with the fixing vertical plates and the fixing base plate, the fixing vertical plates are detachably connected with the profiles, the blocking installation bases comprise an integrally formed blocking base plate and two blocking vertical plates, the two blocking vertical plates are respectively and vertically connected to two ends of the blocking base plate, and the blocking vertical plates are detachably connected with the profiles.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic diagram of a belt line according to an embodiment of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1A;

FIG. 3 is a schematic view of an exploded view of a belt line according to an embodiment of the present utility model;

FIG. 4 is an enlarged view of a portion of B in FIG. 3;

FIG. 5 is a schematic view of a belt line profile according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a driven connection plate of a belt line according to an embodiment of the present utility model;

FIG. 7 is a schematic diagram of a belt line drive pulley according to an embodiment of the present utility model;

FIG. 8 is a schematic diagram of an exploded view of a drive pulley of a belt line according to an embodiment of the present utility model;

fig. 9 is a schematic view of the structure of the driven pulley of the belt line according to an embodiment of the present utility model.

Fig. 10 is an exploded view of a driven pulley of a belt line according to an embodiment of the present utility model.

Reference numerals:

100. a section bar; 110. a limit groove; 111. a support bar; 120. a T-shaped groove; 130. a T-shaped slider;

200. a drive wheel assembly; 210. a driving wheel; 211. a first guide projection; 212. a first tooth portion; 213. a first clamping groove; 214. the first hoop; 215. a connection hole; 220 active bearing blocks; 221. a first mounting hole; 222. a motor connecting plate; 230. a driving shaft; 240, a step of; a drive bearing; 250. an active powder receiving box;

300. a driven wheel assembly; 310. driven wheel; 311. a second guide projection; 312. a second tooth portion; 313. a second clamping groove; 314. the second hoop; 315. a second mounting hole; 320. a driven connecting plate; 321. an adjustment assembly; 3211. a first adjusting screw; 3212. a second adjusting screw; 322. a long slot; 323. a first threaded hole; 324. a connection protrusion; 3241. a second threaded hole; 330. a driven shaft; 340. a driven bearing; 350. a driven powder receiving box;

400. a belt; 410. a guide groove; 420. a third tooth portion;

500. fixing the foot stand; 510. a fixed bottom plate; 520. fixing a vertical plate; 530. fixing the rib plates;

600. blocking the mounting seat; 610. a blocking bottom plate; 620. blocking the riser.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1, 3, 4, 5, 7 and 9, a belt line according to an embodiment of the present utility model includes a profile 100, a driving wheel assembly 200, a driven wheel assembly 300 and a belt 400. The upper surface of the section bar 100 is provided with a limit groove 110, and the limit groove 110 is arranged along the length direction of the section bar 100. The driving wheel assembly 200 comprises a driving wheel 210, the driving wheel 210 is rotatably connected to one end of the profile 100, a first guiding protrusion 211 is arranged on the driving wheel 210, the first guiding protrusion 211 is arranged in the middle of the outer side of the driving wheel 210, the first guiding protrusion 211 is arranged along the circumferential direction of the driving wheel 210, and first tooth parts 212 are arranged on two sides of the first guiding protrusion 211. The driven wheel assembly 300 comprises a driven wheel 310, the driven wheel 310 is rotatably connected to the other end of the profile 100, a second guide protrusion 311 is arranged on the driven wheel 310, the second guide protrusion 311 is arranged in the middle of the outer side of the driven wheel 310 and circumferentially arranged along the driven wheel 310, and second tooth parts 312 are arranged on two sides of the second guide protrusion 311. The belt 400 is sleeved on the driving wheel 210, the section bar 100 and the driven wheel 310, and the lower end of the belt 400 above the section bar 100 is slidingly connected in the limit groove 110. The belt 400 is provided inside with a guide groove 410, the guide groove 410 is provided along the length direction of the belt 400, both sides of the guide groove 410 are provided with a third tooth part 420, and the third tooth part 420 is engaged with both the first tooth part 212 and the second tooth part 312.

The driving wheel 210 rotates to drive the belt 400 to rotate, the driven wheel 310 is driven to rotate, the first guide protrusion 211 and the second guide protrusion 311 extend into the guide groove 410, and the first guide protrusion 211 and the second guide protrusion 311 can guide the belt 400. A limit groove 110 is arranged above the section bar 100, the lower end of the belt 400 above the section bar 100 is slidably connected in the limit groove 110, and two side walls of the limit groove 110 can guide the belt 400. The driving wheel 210 and the driven wheel 310 can guide the middle part of the belt 400, the section bar 100 can guide the two sides of the belt 400, and double guide is performed, so that the belt 400 is not easy to shake in the transportation process, and the graphite boat trays transported on the belt 400 are not easy to collide.

In some embodiments, referring to fig. 1, 3 and 7, the driving wheel assembly 200 further includes a driving bearing seat 220, a driving shaft 230 and a driving bearing 240, wherein a first mounting hole 221 is provided on the driving bearing seat 220, and the driving bearing 240 is mounted in the first mounting hole 221. The driving wheel 210 is provided with a connecting hole 215, the driving shaft 230 is penetrated through the inner ring of the driving bearing 240 and the connecting hole 215, and the driving shaft bearing seat 220 is detachably connected to one end of the section bar 100. The driving wheel 210 is rotatably connected to one end of the profile 100 through the driving shaft 230, the driving bearing 240 and the driving bearing seat 220, the driving bearing 240 is installed in the first installation hole 221, and the driving shaft 230 is arranged through the inner ring of the driving bearing 240 and the connection hole 215 of the driving wheel 210 in a penetrating manner, so that the driving wheel 210 is ensured to rotate smoothly and stably. The driving shaft 230 is externally connected with a motor, and the motor rotates to drive the driving shaft 230 to rotate and drive the driving wheel 210 to rotate.

In some embodiments, referring to fig. 1, 3 and 7, the drive wheel assembly 200 further includes a motor connection plate 222, the motor connection plate 222 being integrally formed with the drive bearing housing 220. The motor connecting plate 222 and the driving bearing seat 220 are integrally cast and formed in a mold opening mode, so that machining cost and manual assembly cost can be reduced.

In some embodiments, referring to fig. 1, 2, 3, 6 and 9, the driven wheel assembly 300 further includes a driven shaft 330, a driven bearing 340 and a driven connection plate 320, the driven wheel 310 is provided with a second mounting hole 315, the driven bearing 340 is mounted in the second mounting hole 315, and the driven shaft 330 is disposed through an inner ring of the driven bearing 340. The driven connecting plate 320 is detachably connected to one end of the section bar 100, an adjusting component 321 is arranged on the driven connecting plate 320, the adjusting component 321 is connected with the driven shaft 330, and the adjusting component 321 is used for adjusting the distance between the driven shaft 330 and the driving wheel component 200. Driven wheel 310 is rotatably connected to driven shaft 330 by driven bearing 340, driven shaft 330 is connected to driven connection plate 320 by adjusting assembly 321, and driven connection plate 320 is connected to one end of profile 100, such that driven wheel 310 is rotatably connected to one end of profile 100. The distance between the driven shaft 330 and the driving wheel assembly 200 can be adjusted by arranging the adjusting assembly 321, so that the distance between the driven wheel 310 and the driving wheel assembly 200 can be adjusted, the belt 400 connected to the driven wheel 310 can be tightened, and the conveying process of the belt 400 is ensured to be more stable.

In some embodiments, referring to fig. 1, 2, 3, 6 and 9, the driven connecting plate 320 is provided with a long slot hole 322 and a first threaded hole 323, the driven shaft 330 is disposed through the long slot hole 322, the first threaded hole 323 is disposed along one end of the driven connecting plate 320 away from the driving wheel assembly 200, the first threaded hole 323 is communicated with the long slot hole 322, and the length direction of the long slot hole 322, the length direction of the driven connecting plate 320 and the axial direction of the first threaded hole 323 are all consistent. The driven connecting plate 320 is provided with a connecting protrusion 324 at the other end near the long slot 322, the connecting protrusion 324 is provided with a second threaded hole 3241, and the axial direction of the first threaded hole 323 is parallel to the axial direction of the second threaded hole 3241. The adjusting assembly 321 comprises a first adjusting screw 3211 and a second adjusting screw 3212, the first adjusting screw 3211 is in threaded connection with the first threaded hole 323, the second adjusting screw 3212 is in threaded connection with the second threaded hole 3241, and the first adjusting screw 3211 and the second adjusting screw 3212 are abutted against two opposite sides of the driven shaft 330. The driven shaft 330 is limited on the driven connecting plate 320 through the first adjusting screw 3211 and the second adjusting screw 3212, the length of the first adjusting screw 3211 extending out of the first threaded hole 323 and the length of the second adjusting screw 3212 extending out of the second threaded hole 3241 are adjusted, the position of the driven shaft 330 in the long groove hole 322 is changed, and then the distance between the driven shaft 330 and the driving wheel assembly 200 is adjusted.

The middle part of the driven shaft 330 is cylindrical, two ends of the driven shaft 330 are cuboid, surfaces of two ends of the driven shaft 330 are flat, and the first adjusting screw 3211 and the second adjusting screw 3212 are conveniently abutted to the end part of the driven shaft 330, so that the driven wheel 310 is prevented from slipping.

In some embodiments, referring to fig. 1, 3, 7, 8, 9 and 10, a first clamping groove 213 is circumferentially disposed in the middle of the outer side of the driving wheel 210, a first hoop 214 is detachably disposed in the first clamping groove 213, and the first hoop 214 is sleeved on the driving wheel 210 to form a first guiding protrusion 211. A second clamping groove 313 is formed in the middle of the outer side of the driven wheel 310 along the circumferential direction, a second hoop 314 is detachably arranged in the second clamping groove 313, and the second hoop 314 is sleeved on the driven wheel 310 to form a second guide protrusion 311. The first anchor ear 214 and the second anchor ear 314 are rubber ring anchor ears, and the rubber ring anchor ears are installed in a pressing buckle mode and can be replaced for a plurality of times. The first anchor ear 214 and the second anchor ear 314 stretch into the guide groove 410, and the first anchor ear 214 and the second anchor ear 314 can guide the belt 400, so that the belt 400 has high operation precision and stable operation.

In some embodiments, referring to fig. 1 and 3, the drive wheel assembly 200 further includes an active powder receiving box 250, the active powder receiving box 250 includes an active powder receiving slot, the active powder receiving slot is open and facing upwards, and the active powder receiving box 250 is mounted under the drive wheel 210. Driven wheel assembly 300 also includes a driven powder receiving box 350, driven powder receiving box 350 includes a driven powder receiving slot, the driven powder receiving slot opening upward, and driven powder receiving box 350 is mounted below driven wheel 310. The active powder receiving box 250 and the passive powder receiving box 350 are arranged, so that dust falling due to abrasion in the transportation process of the belt 400 can be received.

In some embodiments, referring to fig. 1, 3 and 5, the limit groove 110 is T-shaped, and a supporting strip 111 is disposed in the limit groove 110, and the supporting strip 111 abuts against the belt 400. The T-shaped limiting groove 110 can fix the supporting strip 111 on the section bar 100, the supporting strip 111 can avoid direct contact friction between the belt 400 and the section bar 100, and abrasion of the belt 400 is reduced.

In some embodiments, referring to fig. 1, 3 and 5, the profile 100 is provided with a T-shaped slot 120 on opposite sides, and a plurality of T-shaped slides 130 are slidably disposed in the T-shaped slot 120. The T-shaped slider 130 is provided with a third threaded hole, and the driving wheel assembly 200 and the driven wheel assembly 300 are connected with the T-shaped slider 130 through screws. The screw is in threaded connection with the third threaded hole, and the driving bearing seat 220 and the driven connecting plate 320 are connected with the T-shaped sliding block 130 through the screw, and then are connected to the profile 100. The T-shaped sliding block 130 is matched and connected with the T-shaped groove 120, the T-shaped sliding block 130 is not easy to fall off from the section bar 100, and further the driving bearing seat 220 and the driven connecting plate 320 connected with the T-shaped sliding block 130 are guaranteed not to fall off from the section bar 100.

In some embodiments, referring to fig. 1, 3 and 5, the profile 100 is provided in two, with a fixed foot 500 and a blocking mount 600 connected between the two profiles 100. The fixing foot stand 500 comprises a fixing bottom plate 510, two fixing vertical plates 520 and two fixing rib plates 530, wherein the fixing bottom plate 510, the two fixing vertical plates 520 and the two fixing rib plates 530 are integrally formed. Two fixed risers 520 are respectively and vertically connected to two ends of the fixed bottom plate 510, and the fixed rib plates 530 are vertically connected with the fixed risers 520 and the fixed bottom plate 510, and the fixed risers 520 are detachably connected with the profile 100. The blocking mount 600 includes a blocking floor 610 and two blocking risers 620, the floor and the two blocking risers 620 being integrally formed. Two blocking risers 620 are vertically connected to both ends of the blocking base 610, respectively, and the blocking risers 620 are detachably connected to the profile 100. The two profiles 100 are connected into a frame through the fixing foot stand 500, the blocking mounting stand 600 is used for mounting the blocking cylinder, and the blocking cylinder works to limit the graphite boat transported on the belt 400 to one end of the belt line.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A belt line, comprising:

2. The belt line of claim 1, wherein the drive wheel assembly further comprises a drive bearing seat, a drive shaft and a drive bearing, the drive bearing seat is provided with a first mounting hole, the drive bearing is mounted in the first mounting hole, the drive wheel is provided with a connecting hole, the drive shaft is arranged through an inner ring of the drive bearing and the connecting hole, and the drive bearing seat is detachably connected to one end of the profile.

3. The belt line of claim 2, wherein the drive wheel assembly further comprises a motor connection plate integrally formed with the drive bearing housing.

4. The belt line as in claim 1, wherein the driven pulley assembly further comprises a driven shaft, a driven bearing and a driven connection plate, a second mounting hole is formed in the driven pulley, the driven bearing is mounted in the second mounting hole, the driven shaft is arranged in an inner ring of the driven bearing in a penetrating mode, the driven connection plate is detachably connected to one end of the section bar, an adjusting assembly is arranged on the driven connection plate, the adjusting assembly is connected with the driven shaft, and the adjusting assembly is used for adjusting the distance between the driven shaft and the driving wheel assembly.

5. The belt line of claim 4, wherein the driven connection plate is provided with a long slot hole, the driven shaft is arranged in the long slot hole in a penetrating mode, one end, away from the driving wheel assembly, of the driven connection plate is provided with a first threaded hole communicated to one end of the long slot hole, the other end, close to the long slot hole, of the driven connection plate is provided with a connecting protrusion, the connecting protrusion is provided with a second threaded hole, the adjusting assembly comprises a first adjusting screw and a second adjusting screw, the first adjusting screw is in threaded connection with the first threaded hole, the second adjusting screw is in threaded connection with the second threaded hole, and the first adjusting screw and the second adjusting screw are in abutting connection with two opposite sides of the driven shaft.

6. The belt line according to claim 1, wherein a first clamping groove is formed in the middle of the outer side of the driving wheel in the circumferential direction, a first hoop is detachably arranged in the first clamping groove, the first hoop is sleeved on the driving wheel to form the first guide protrusion, a second clamping groove is formed in the middle of the outer side of the driven wheel in the circumferential direction, a second hoop is detachably arranged in the second clamping groove, and the second hoop is sleeved on the driven wheel to form the second guide protrusion.

7. The belt line of claim 1, wherein the drive wheel assembly further comprises a drive powder receiving box comprising a drive powder receiving slot with an opening facing upward, the drive powder receiving box being mounted below the drive wheel, and the driven wheel assembly further comprises a driven powder receiving box comprising a driven powder receiving slot with an opening facing upward, the driven powder receiving box being mounted below the driven wheel.

8. The belt line of claim 1, wherein the limit groove is T-shaped, and a supporting strip is disposed in the limit groove, and the supporting strip abuts against the belt.

9. The belt line as in claim 1, wherein the profile is provided with T-shaped grooves on opposite sides thereof, a plurality of T-shaped sliders are slidably disposed in the T-shaped grooves, third threaded holes are formed in the T-shaped sliders, and the driving wheel assembly and the driven wheel assembly are connected to the T-shaped sliders by screws.

10. The belt line according to claim 1, wherein two profiles are provided, a fixing base and a blocking mounting base are connected between the two profiles, the fixing base comprises a fixing base plate, two fixing risers and two fixing rib plates which are integrally formed, the two fixing risers are respectively and vertically connected to two ends of the fixing base plate, the fixing rib plates are vertically connected with the fixing risers and the fixing base plate, the fixing risers are detachably connected with the profiles, the blocking mounting base comprises a blocking base plate and two blocking risers which are integrally formed, the two blocking risers are respectively and vertically connected to two ends of the blocking base plate, and the blocking risers are detachably connected with the profiles.