Conveyor line

Abstract

A conveyor line, comprising a conveying module (2), the conveying module (2) comprising a profile support frame (21) extending in the front-back direction, a driving end support member (22) and a driven end support member (23) respectively arranged at two ends of the profile support frame (21), a driving belt pulley assembly (24) mounted on the driving end support member (22), a driven belt pulley assembly (25) mounted on the driven end support member (23), and a synchronous belt (26) wound between the driving belt pulley assembly (24) and the driven belt pulley assembly (25). The driving end support member (22) and the driven end support member (23) are each an injection molded piece. The profile support frame (21) is provided with a cavity (2115) for a lower belt body of the synchronous belt (26) to pass through. At least four first threaded holes (2119) are formed on end surfaces of two ends of the profile support frame (21). By means of threading screws into the first threaded holes (2119), the driving end support member (22) and the driven end support member (23) are fixedly mounted on the profile support frame (21).

Description

conveyor line

[0001] This application claims priority to Chinese Patent Application No. 202410685315.8, filed with the Chinese Patent Office on May 30, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application belongs to the field of conveying device technology, and for example relates to a cost-reducing and efficiency-enhancing conveyor line. Background Technology

[0003] In automated manufacturing, conveyor lines are essential material handling devices. A conveyor line typically includes a support frame, a drive mechanism, and a transmission mechanism. The drive mechanism is mostly powered by a motor, while transmission mechanisms vary, such as synchronous pulleys with synchronous belts, or sprockets with chains. In synchronous belt conveyor lines, synchronous pulleys are generally installed at both ends of the profile. The ends of the profile have separate support structures for the synchronous pulleys. The synchronous belt is wound around the two pulleys. One pulley is driven to rotate actively, while the other rotates passively under the transmission of the synchronous belt. The synchronous belt conveys the material.

[0004] Patent publication number CN204938164U discloses an adjustable belt conveyor device. The support structure for supporting the pulley assembly is made of sheet metal. It is fixed to the profile bracket by four screws on each of the two side plates. Sheet metal parts are expensive. The driven end support structure on a single profile bracket requires eight screws for installation, resulting in high installation cost, many installation steps, and low installation efficiency.

[0005] A conveyor line disclosed in patent publication number CN220316188U has the following problems:

[0006] (1) The driven wheel seat is a sheet metal integral molding structure, which is a metal part and has high manufacturing cost;

[0007] (2) When installing the driven wheel, it is necessary to first put it into the inner cavity of the driven wheel seat, then insert the driven wheel disconnect shaft on both sides to support the driven wheel, and finally use the broken shaft bolt to lock the driven wheel disconnect shaft so that the driven wheel can rotate stably. The installation steps of the driven wheel are complicated and the position is not adjustable, so the tension of the main conveyor belt cannot be adjusted.

[0008] (3) Although the drive wheel seat is injection molded as a whole, which reduces the cost compared to sheet metal parts, the drive wheel side plate is a solid plate structure that cannot be passed through by the main shaft.

[0009] Summary of the Invention

[0010] This application provides a conveyor line that reduces manufacturing costs and improves installation efficiency.

[0011] This application provides a conveyor line, including multiple conveyor modules. Each conveyor module includes a profile support, an active end support and a passive end support respectively disposed at both ends of the profile support, an active pulley assembly mounted on the active end support, a passive pulley assembly mounted on the passive end support, and a synchronous belt wound between the active pulley assembly and the passive pulley assembly.

[0012] The profile bracket has a cavity for the lower belt body of the timing belt to pass through, and multiple first threaded holes are provided on both end faces of the profile bracket.

[0013] Both the active end support and the driven end support are injection molded parts; the driven end support includes a second front side plate, a second left side plate, a second right side plate, and a second lower connecting plate that together surround a second receiving cavity; a support groove is provided on the inner surface of the second left side plate and the second right side plate, the support groove extends forward from the rear edge of the second left side plate or the second right side plate by a predetermined length, and an inlet and outlet are formed on the rear side of the second left side plate or the second right side plate; the side of the support groove facing the second receiving cavity is an open structure, communicating with the second receiving cavity;

[0014] The driven pulley assembly includes a support shaft, a driven pulley rotatably mounted on the support shaft, and an adjustment component that adjusts the distance between the driven pulley and the driving pulley assembly to adjust the tension of the synchronous belt; the driven pulley assembly as a whole is pushed horizontally into the second receiving cavity from the inlet and outlet along the support groove to be installed on the driven end support.

[0015] Optionally, the profile support includes a main profile and a side sealing plate; the cavity is formed on the main profile, and the cavity has an open notch on the left or right surface of the main profile; the side sealing plate and the main profile are detachably connected together by a slot and clip fastening structure and cover the open notch.

[0016] Optionally, the top of the main profile is provided with a groove structure extending along the extension direction of the main profile. The groove structure includes a first slot and a timing belt limiting groove located above the first slot. The width of the first slot is greater than the width of the timing belt limiting groove. A wear-resistant metal belt is provided in the first slot. The timing belt is located in the timing belt limiting groove and the lower surface of the timing belt is in contact with the surface of the wear-resistant metal belt. The upper surface of the timing belt protrudes from the timing belt limiting groove.

[0017] Optionally, the end of the wear-resistant metal strip near the driven end support is bent to form a first bend, and the end of the wear-resistant metal strip near the active end support is bent to form a second bend; the first bend is pressed between the end face of the driven end support and the end face of the profile bracket; the second bend is pressed under a pair of pressing blocks inside the active end support.

[0018] Optionally, the active end support has a first left side plate, a first right side plate, and a first lower connecting plate. The first left side plate and the first right side plate are arranged opposite each other. The first lower connecting plate is located at the bottom and between the first left side plate and the first right side plate. The space between the first left side plate and the second right side plate forms a first receiving cavity for accommodating the active pulley assembly. The first receiving cavity has a first opening that extends from the top of the active end support to the rear and lower position along the outer periphery of the active end support. Both the first left side plate and the first right side plate have spindle through holes.

[0019] Optionally, the spindle perforation includes a hole seat and an inlet slot; the hole seat is configured to support the spindle; the inlet slot is recessed downwards from the top of the first left side plate or the first right side plate to the hole seat; the slot width of the inlet slot is greater than the diameter of the spindle; a snap-fit ​​plug is installed in the inlet slot; the inlet slot has a first section and a second section sequentially along the slot depth direction, the slot width of the first section is greater than the slot width of the second section, forming a stepped structure; the snap-fit ​​plug has a plug head and a blocking part, the plug head fills the space of the first section, the blocking part fills the space of the second section, and the plug head sits on the stepped structure to achieve insertion depth positioning.

[0020] Optionally, a vertically extending first limiting groove is provided on the inner wall of the second section of the inlet groove, and a first limiting protrusion that cooperates with the first limiting groove is provided on the blocking part.

[0021] Optionally, the active end support has a first front side plate, the left side of the first front side plate is adjacent to the first left side plate, and the right side of the first front side plate is adjacent to the first right side plate; the first front side plate is provided with a plurality of first mounting holes corresponding to the positions of the plurality of first threaded holes.

[0022] Optionally, the lower surface of the profile bracket is provided with a first strip groove for embedding fasteners, and the left and right sides of the profile bracket are provided with second strip grooves for embedding fasteners; the first front side plate is provided with a plurality of first positioning protrusions that cooperate with the inner walls of the first strip groove and the second strip groove for positioning.

[0023] Optionally, the active end support member has a support plate portion formed at the front end of the first opening, and a pair of pressing blocks are provided on the inner wall surfaces of the first left side plate portion and the first right side plate portion near the rear side of the support plate portion; a wear-resistant metal strip is embedded in the top of the profile bracket, the lower surface of the synchronous belt is in contact with the upper surface of the wear-resistant metal strip, and one end of the wear-resistant metal strip extends to cover the support plate portion and is pressed downward by the pressing blocks.

[0024] Optionally, the structure of the active end support member can be one of the following three cases:

[0025] Case a): The active end support is an integral injection-molded structure;

[0026] Scenario b): The active end support includes a first plastic part and a second plastic part. The first plastic part is integrally injection molded from the first right side plate, the first front side plate, and the first lower connecting plate. The second plastic part is formed from the first left side plate. The first plastic part is provided with a plurality of second threaded holes. The second plastic part is assembled with the first plastic part by screwing screws into the second threaded holes to form the active end support.

[0027] Case c): The active end support includes a third plastic part and a fourth plastic part. The first left side plate, the first front side plate, and the first lower connecting plate are integrally injection molded to form the third plastic part, and the first right side plate forms the fourth plastic part. The third plastic part is provided with a plurality of third threaded holes. The fourth plastic part is assembled with the third plastic part by screwing screws into the third threaded holes to form the active end support.

[0028] Optionally, the first front side plate is provided with a second opening that connects the first receiving cavity and the cavity.

[0029] Optionally, when the structure of the active end support is as described in case a), the second opening faces upward;

[0030] When the structure of the active end support is as described in case b), the opening of the second opening faces to the left;

[0031] When the structure of the active end support is as described in case c), the second opening faces to the right.

[0032] Optionally, the structure of the driven end support member can be one of the following four cases:

[0033] Case a): The driven end support is a single injection-molded structure;

[0034] Scenario b): The driven end support includes a fifth plastic part and a sixth plastic part symmetrically assembled from left and right sides; the fifth plastic part includes a second left side plate portion, half of a second lower connecting plate portion, and half of a second front side plate portion; the sixth plastic part includes a second right side plate portion, half of a second lower connecting plate portion, and half of a second front side plate portion; the fifth plastic part and the sixth plastic part are provided with a third mounting hole at the second lower connecting plate portion, and the fifth plastic part and the sixth plastic part are fastened together by bolts, nuts, or screw thread holes;

[0035] Case c): The driven end support includes a seventh plastic part and an eighth plastic part; the second left side plate, the second front side plate, and the second lower connecting plate are integrally injection molded to form the seventh plastic part, and the second right side plate forms the eighth plastic part; the seventh plastic part is provided with a plurality of fourth threaded holes, and the eighth plastic part is fastened to the seventh plastic part by screwing screws into the fourth threaded holes to form the driven end support;

[0036] Case d): The driven end support includes a ninth plastic part and a tenth plastic part; the second right side plate, the second front side plate, and the second lower connecting plate are integrally injection molded to form the ninth plastic part, and the second left side plate forms the tenth plastic part; the ninth plastic part is provided with a plurality of fifth threaded holes, and the tenth plastic part is fastened to the ninth plastic part by screwing screws into the fifth threaded holes to form the driven end support.

[0037] Optionally, the outer peripheral surface of the section of the support shaft extending into the support groove is partially removed to form a shaft end structure having a lower horizontal surface and an upper horizontal surface, and the lower horizontal surface sits on the bottom of the support groove.

[0038] Optionally, both the second left side plate and the second right side plate are provided with limiting baffles to restrict the axial position of both ends of the support shaft.

[0039] Optionally, the adjusting assembly includes a pair of adjusting screws and a support block movably sleeved on the adjusting screws; a horizontal and radially penetrating sixth threaded hole is provided on the section of the support shaft that extends into the support groove, the adjusting screws pass horizontally through the sixth threaded hole and are threadedly engaged with the sixth threaded hole, and the support block blocks the inlet and outlet.

[0040] Optionally, the support block is provided with a through hole for the adjusting screw to pass through and a plug body that is adapted to the height of the support slide and blocks the inlet and outlet; the support slide is provided with a limiting groove on both the bottom surface and the top surface near the inlet and outlet; the upper surface and lower surface of the plug body are provided with a limiting protrusion that cooperates with the limiting groove to limit the movement.

[0041] Optionally, the second receiving cavity has a third opening that extends backward and downward along the outer periphery of the driven end support from the top of the driven end support to a lower rear position; the rear side of the driven end support is provided with a second baffle portion that reduces the gap between the third opening and the driven pulley assembly.

[0042] Optionally, a pair of latching parts are provided on the inner side of the second enclosure panel, and the second enclosure panel is fastened to the second left side panel and the second right side panel respectively by the pair of latching parts.

[0043] Optionally, the lower surface of the profile bracket is provided with a first strip groove for embedding fasteners, and the left and right sides of the profile bracket are provided with second strip grooves for embedding fasteners; the second front side plate is provided with a plurality of second positioning protrusions that cooperate with the inner walls of the first strip groove and the second strip groove for positioning.

[0044] Optionally, the second front side plate is provided with a fourth opening that connects the second receiving cavity and the cavity.

[0045] Optionally, in case a) or case b), the fourth opening faces upward;

[0046] In scenario c), the fourth opening faces upwards or to the right;

[0047] In scenario d), the fourth opening faces upward or to the left.

[0048] Optionally, the driven end support is provided with a supporting sheet metal part for supporting the timing belt.

[0049] Optionally, the left and right sides of the supporting sheet metal part have a pair of first folded plate portions that fold downward and fit the surface of the second left side plate portion or the second right side plate portion; the middle part of the supporting sheet metal part has a downwardly recessed limiting groove; the front ends of the two first folded plate portions are folded to the left and right respectively to form a pair of second folded plate portions that fit the surface of the second front side plate portion; the rear side of the limiting groove has a transition extension plate that extends obliquely backward and downward.

[0050] Optionally, it also includes a frame and a drive module fixed on the frame, wherein the plurality of conveying modules are arranged parallel to each other in the left-right direction on the frame; the drive module includes a motor and a main shaft driven by the motor to rotate; the drive pulley assembly is fixedly mounted on the main shaft and rotates together with the main shaft.

[0051] Optionally, a bearing housing is provided on the main shaft near each of the active pulley assemblies; a nut is embedded in the active end support, and the bearing housing is fixedly installed on the active end support by screwing screws into the nut. Attached Figure Description

[0052] Figure 1 is a three-dimensional structural diagram of the conveyor line in an embodiment of this application;

[0053] Figure 2 is a schematic diagram of the conveying module in an embodiment of this application;

[0054] Figure 3 is a schematic diagram of the cross-sectional structure of the main profile in the embodiment of this application;

[0055] Figure 4 is a schematic diagram of the cross-sectional structure of the profile bracket in the embodiment of this application;

[0056] Figure 5 is a schematic diagram of the top partial structure of the main profile section in an embodiment of this application;

[0057] Figure 6 is a schematic diagram of the wear-resistant metal strip in an embodiment of this application;

[0058] Figure 7 is a structural schematic diagram of the active end support member in an embodiment of this application;

[0059] Figure 8 is a schematic diagram of the active end support member from another angle in an embodiment of this application;

[0060] Figure 9 is a schematic diagram of the structure of the first plastic part in the embodiment of this application;

[0061] Figure 10 is a structural schematic diagram of the second plastic part in an embodiment of this application;

[0062] Figure 11 is a schematic diagram of the structure in which the two ends of the wear-resistant metal strip are pressed in an embodiment of this application;

[0063] Figure 12 is a partial enlarged structural diagram of point D in Figure 1;

[0064] Figure 13 is a schematic diagram of the snap plug in an embodiment of this application;

[0065] Figure 14 is a structural schematic diagram of the driven end support and the driven pulley assembly in an embodiment of this application;

[0066] Figure 15 is a structural schematic diagram of the driven end support member in an embodiment of this application;

[0067] Figure 16 is a schematic diagram of the driven end support member from another angle in an embodiment of this application;

[0068] Figure 17 is a horizontal cross-sectional view of the structure at the height of the support shaft in Figure 14;

[0069] Figure 18 is a schematic diagram of the vertical cross-sectional structure of Figure 14 at the support axis;

[0070] Figure 19 is a schematic diagram of the cooperation between the driven pulley and the support shaft in an embodiment of this application;

[0071] Figure 20 is a schematic diagram of the support block in an embodiment of this application;

[0072] Figure 21 is a structural schematic diagram of the second enclosure plate in an embodiment of this application;

[0073] Figure 22 is a structural schematic diagram of the supporting sheet metal part in an embodiment of this application;

[0074] Figure 23 is a partial enlarged structural diagram of point E in Figure 1;

[0075] Figure 24 is a schematic diagram of the structure of the drive module and the active pulley assembly in the embodiment of this application.

[0076] The numbers in the diagram represent: 100 - Cost-reducing and efficiency-enhancing conveyor line; 1 - Frame; 2 - Conveying module; 21 - Profile support; 211 - Main profile; 2111 - First strip groove; 2112 - Second strip groove; 2113 - First slot; 2114 - Synchronous belt limiting groove; 2115 - Cavity; 2116 - Open notch; 2117 - First locking strip; 2118 - Second locking strip; 2119 - First threaded hole; 212 - Side sealing plate; 2121 - Clip strip; 2122 - Second slot; 22 - Active end support; 221 - First left side plate; 2211 - Main shaft through hole; 22111 - Hole seat; 22112 - ... 22113 - First limiting groove, 2212 - Nut embedding groove, 2213 - Nut, 2214 - Second threaded hole, 222 - First right side plate, 223 - Snap plug, 2231 - Plug head, 2232 - Plug part, 2233 - First limiting protrusion, 224 - First front side plate, 2241 - First mounting hole, 2242 - First positioning protrusion, 2243 - Second opening, 225 - First receiving cavity, 2251 - First opening, 226 - Support plate, 227 - First enclosure plate, 228 - Holding block, 229 - First lower connecting plate, 23 - Driven end support, 231 - Second left side plate, 2311 - Support slide, 2312 - Inlet / outlet, 2313 - Limiting baffle, 2314-Second limiting groove, 232-Second right side plate, 233-Second front side plate, 2331-Second mounting hole, 2332-Second positioning protrusion, 2333-Fourth opening, 234-Second receiving cavity, 2341-Third opening, 235-Second enclosure plate, 2351-Snap-on part, 236-Second lower connecting plate, 24-Driving pulley assembly, 25-Driven pulley assembly, 251-Support shaft, 2511-Sixth threaded hole, 2512-Shaft end structure, 252-Driven pulley, 253-Adjusting screw, 254-Supporting block, 2541-Through hole, 2542-Plug body, 2543-Second limiting protrusion, 26-Synchronous belt, 27-Wear-resistant metal belt, 271-First bending part, 272-Second bending part 28-Support sheet metal part, 281-First folding plate part, 282-Limiting bracket, 283-Second folding plate part, 284-Transition extension plate; 3-Drive module, 31-Motor, 32-Main spindle, 33-Bearing seat. Detailed Implementation

[0077] Example 1:

[0078] Please refer to Figures 1-24. This embodiment is a cost-reducing and efficiency-enhancing conveyor line 100, which includes a frame 1, conveyor modules 2 arranged parallel to each other in the left-right direction on the frame 1, and a drive module 3 that drives the conveyor modules 2 to realize the conveying function.

[0079] The conveying module 2 includes a profile support 21 extending in the front-to-back direction, an active end support 22 and a driven end support 23 respectively disposed at both ends of the profile support 21, an active pulley assembly 24 mounted on the active end support 22, a driven pulley assembly 25 mounted on the driven end support 23, and a synchronous belt 26 wound between the active pulley assembly 24 and the driven pulley assembly 25. The number of conveying modules 2 can be flexibly designed according to the width of the material being conveyed. In this embodiment, four conveying modules 2 are provided, which are equally spaced along the width direction of the material being conveyed.

[0080] The profile bracket 21 includes a main profile 211 and a side sealing plate 212.

[0081] The bottom of the main profile 211 is provided with a first strip groove 2111 for embedding fasteners, and the upper part of both the left and right sides is provided with a second strip groove 2112 for embedding fasteners. The fasteners include, but are not limited to, bolts, nuts, corner pieces, connectors, end face connecting plates, spacer connecting blocks, elastic fasteners, movable hinges, shoe horns, and casters. By embedding the fasteners in the first strip groove 2111 and the second strip groove 2112, the main profile 211 is securely connected to the frame 1, the active end support 22, the driven end support 23, and other structural components.

[0082] The top of the main profile 211 is provided with a groove structure extending along the extension direction of the main profile 211. The groove structure includes a first slot 2113 and a timing belt limiting groove 2114 located above the first slot 2113. The width of the first slot 2113 is greater than the width of the timing belt limiting groove 2114. A wear-resistant metal belt 27 is disposed in the first slot 2113. The long sides of the wear-resistant metal belt 27 are limited in vertical position and horizontal width position by the first slot 2113. The wear-resistant metal belt 27 is made of a metal material with high wear resistance and low coefficient of friction, such as stainless steel, with a thickness of 0.1-1mm. The timing belt 26 is located in the timing belt limiting groove 2114 with its lower surface in contact with the surface of the wear-resistant metal belt 27. The upper surface of the timing belt 26 protrudes from the timing belt limiting groove 2114. The timing belt limiting groove 2114 limits the horizontal width position of the timing belt 26, ensuring the conveying path of the timing belt 26 and preventing it from deviating. In this embodiment, by replacing the original plastic pad with a wear-resistant metal strip 27, the wear resistance of the wear-resistant metal strip 27 is improved, and the surface friction coefficient is reduced. The surface of the wear-resistant metal strip 27 can be made smoother, which effectively reduces the wear on the synchronous belt 26 and thus improves the service life of the synchronous belt 26.

[0083] The main profile 211 has a cavity 2115 in its cross-sectional structure for the lower belt of the synchronous belt 26 to pass through. An open notch 2116 is formed on the left or right surface of the main profile 2115. The lower belt of the synchronous belt 26 is passed through the cavity 2115 to achieve a return stroke, preventing the synchronous belt 26 from being exposed and improving the safety of the conveyor line. The side sealing plate 212 is detachably connected to the main profile 211 via a slot and strip fastening structure, and covers the open notch 2116. The slot and strip fastening structure consists of a first strip 2117 and a second strip 2118 formed at the top and bottom of the open notch 2116, respectively. A fastening strip 2121 that hooks onto the second strip 2118 is provided on the inner surface of the side sealing plate 212. A second slot 2122 with an upward opening and penetrating through the side sealing plate 212 is provided at the top. When the side sealing plate 212 is assembled with the main profile 211, Align the second slot 2122 with the first clip 2117 and lift the side sealing plate 212 to a certain height so that the lower clip 2121 can extend from the outside into the cavity 2115 and hook onto the second clip 2118. Then lower the side sealing plate 212, with the bottom of the side sealing plate 212 resting on the stepped surface outside the open notch 2116 and hooked onto the second clip 2118 by the clip 2121 to achieve a limiting position. After lowering the side sealing plate 212 and hooking the clip 2121 onto the second clip 2118, the first clip 2117 at the top of the open notch 2116 extends into the second slot 2122 so that the side sealing plate 212 cannot be removed from the main profile 211. The position of the upper part of the side sealing plate 212 is limited by the cooperation of the first clip 2117 and the second slot 2122, and the connection between the first clip 2117 and the second slot 2122 is achieved. When the side sealing plate 212 is installed on the main profile 211, the first locking strip 2117 extends into the second locking groove 2122, and there is a height space between the bottom of the second locking groove 2112 and the bottom of the first locking strip 2117. The height space is sufficient for the side sealing plate 212 to be lifted upward to a certain height. At this height, the locking strip 2121 can be disengaged from the second locking strip 2118, and the side sealing plate 212 can be removed from the main profile 211 by moving outward.

[0084] The open notch 2116 facilitates the insertion of the timing belt 26 into the profile bracket 21. Without the open notch 2116, the timing belt 26, which forms a loop, needs to be inserted into the cavity 2115 from one end of the main profile 211 and then pulled out from the cavity 2115 from the other end of the main profile 211. However, since the main profile 211 is relatively long and the timing belt 26 is made of flexible material, there is a problem of difficulty in threading the belt through the cavity 2115, making installation inconvenient. By setting the open notch 2116, the lower part of the timing belt 26 can be directly inserted into the cavity 2115 from the open notch 2116, while the upper part of the timing belt 26 is installed in the timing belt limiting groove 2114.

[0085] At least four first threaded holes 2119 arranged in a rectangular pattern are provided on both end faces of the main profile 211, which are configured to install the active end support 22 and the driven end support 23.

[0086] In order to reduce the manufacturing cost of the conveyor line and improve the installation efficiency of the conveyor module 2, the structure of both the active end support 22 and the driven end support 23 has been optimized in this embodiment.

[0087] For example, one or both of the active end support 22 and the driven end support 23 are injection molded parts, which have lower manufacturing costs compared to metal sheet parts, thus reducing costs.

[0088] The active end support member 22 has a first front side plate portion 224, a first left side plate portion 221, a first right side plate portion 222, and a first lower connecting plate portion 229. The first left side plate portion 221 and the first right side plate portion 222 are arranged opposite each other, and the first front side plate portion 224 is adjacent to the first left side plate portion 221 on the left and the first right side plate portion 222 on the right. The first lower connecting plate portion 229 is disposed at the bottom and located between the first left side plate portion 221 and the first right side plate portion 222.

[0089] Both the first left side plate 221 and the first right side plate 222 are provided with spindle through holes 2211. The spindle through hole 2211 includes a hole seat 22111 and an inlet slot 22112. The hole seat 22111 is configured to support the spindle. The inlet slot 22112 is recessed from the top of the side plate downward to the hole seat 22111. The slot width of the inlet slot 22112 is greater than the diameter of the spindle so that the spindle can be inserted into the hole seat 22111 from above through the inlet slot 22112, which facilitates the installation of the drive module 3.

[0090] After the spindle is installed into the hole seat 22111, in order to assist in the vertical positioning of the spindle and improve the aesthetics of the active end support 22, the active end support 22 also has two snap plugs 223, which are installed in the guide slot 22112. To improve the positional stability of the snap-fit ​​plug 223 within the inlet slot 22112, on one hand, the inlet slot 22112 has a first section and a second section sequentially along the depth direction of the slot, with the width of the first section being greater than that of the second section, forming a stepped structure; the snap-fit ​​plug 223 has a plug head 2231 and a blocking part 2232 that cooperate with it. After the snap-fit ​​plug 223 is inserted into the inlet slot 22112, the plug head 2231 fills the space of the first section, and the blocking part 2232 fills the space of the second section. The plug head 2231 sits on the stepped structure to achieve insertion depth positioning; on the other hand, the inlet slot 22112 has a vertically extending first limiting groove 22113 on the inner wall of the second section, and the blocking part 2232 of the snap-fit ​​plug 223 is provided with a first limiting protrusion 2233 that cooperates with the first limiting groove 22113. Two first limiting grooves 22113 are provided, located on the two groove wall surfaces of the inlet groove 22112 respectively, and two corresponding first limiting protrusions 2233 are provided, located on the front and rear surfaces of the blocking part 2232 respectively.

[0091] The first front side panel 224 has at least four first mounting holes 2241, which correspond to the first threaded holes 2119 at the ends of the profile bracket 21. Screws are passed through the first mounting holes 2241 and screwed into the first threaded holes 2119 to lock and fix the active end support 22 onto the profile bracket 21. The active end support 22 can be installed and fixed onto the profile bracket 21 using only four screws, which reduces the number of screws compared to the original eight screws required for assembling and fixing the two side panels, thus improving installation efficiency.

[0092] To improve the installation efficiency of the active end support 22 and the profile bracket 21, the first front side plate 224 is provided with a plurality of first positioning protrusions 2242 that cooperate with the internal strip grooves of the profile bracket 21 to achieve rapid positioning. In this embodiment, three first positioning protrusions 2242 are provided. One first positioning protrusion is located between the two bottom first mounting holes 2241 and conforms to the inner wall of the first strip groove 2111 on the profile bracket 21 to constrain and position the active end support 22 in the downward and left-right directions. The other two first positioning protrusions are respectively located near the two upper first mounting holes 2241 and respectively cooperate with the inner walls of the two second strip grooves 2112 on the profile bracket 21 to constrain and position the active end support 22 in the downward and left-right directions.

[0093] A nut embedding groove 2212 is also provided on the inner surface of the first left side plate 221 or the first right side plate 222. A nut 2213 is embedded in the nut embedding groove 2212, which is used as an auxiliary fixing bearing seat in the drive module 3.

[0094] The space between the first left side plate portion 221 and the first right side plate portion 222 forms a first receiving cavity 225 for accommodating the drive pulley assembly 24 and allowing it to rotate. The first lower connecting plate portion 229 forms a bottom enclosure for the first receiving cavity 225, which can prevent the bottom of the synchronous belt 26 wrapped around the drive pulley assembly 24 from being exposed, thus improving safety. A first opening 2251 is formed on the surface of the drive end support member 22 to facilitate the entry of the drive pulley assembly 24 into the first receiving cavity 225. The first opening 2251 extends rearward from the top surface of the drive end support member 22 near the first front side plate portion 224 to the rear surface of the drive end support member 22.

[0095] The active end support member 22 has a support plate portion 226 at the front end of the first opening 2251 and a first baffle plate portion 227 at the rear end. On the inner wall surfaces of the first left side plate portion 221 and the first right side plate portion 222, near the rear side of the support plate portion 226, pressing blocks 228 are provided. One end of the wear-resistant metal belt 27 extends to cover the support plate portion 226 and is pressed down by the pressing blocks 228 to maintain a downward bent state. The support plate portion 226 mainly provides bottom support for the section of the wear-resistant metal belt 27 extending from the profile bracket 21 to the active end support member 22. This allows the wear-resistant metal belt 27 to be made longer, providing the longest possible support for the effective conveying section of the synchronous belt 26; it also facilitates the installation of the wear-resistant metal belt 27.

[0096] The wear-resistant metal strip 27 has a first bend 271 at the end near the driven end support 23 and a second bend 272 at the end near the driven end support 22. The first bend 271 is bent vertically downward and pressed between the end face of the driven end support 23 and the end face of the profile bracket 21. The second bend 272 is bent obliquely downward and pressed under the pressing stop 228.

[0097] Since the wear-resistant metal strip 27 is a thin metal strip structure with a certain thickness and has a certain hardness, bending the wear-resistant metal strip 27 is relatively laborious. The wear-resistant metal strip 27 is supplied in a narrow reel structure. Based on the length of the profile bracket 21, a set length of wear-resistant metal strip 27 can be cut from the reel. Then, using a bending tool (such as pliers), one end is bent into a vertical state to form a first bend 271. The first bend 271 is pressed between the driven end support 23 and the profile bracket 21 by the end face of the driven end support 23. At this time, the other end of the wear-resistant metal strip 27 is in a flat state. It is inserted into the first slot 2113 from one end of the profile bracket 21 and continues to the other end of the profile bracket 21. The installer bends the part of the wear-resistant metal strip 27 that extends out of the profile bracket 21 by hand or with a tool at an angle downward to form a second bend 272, and presses it under the holding block 228. The holding block 228 presses and positions the other end of the wear-resistant metal strip 27.

[0098] To facilitate the insertion of the active pulley assembly 24 into the first receiving cavity 225, this embodiment forms a first opening 2251 on the active end support 22. However, due to the presence of this first opening 2251, a safety hazard exists on the lower outer side of the active pulley assembly 24 when the synchronous belt 26 returns after bypassing the active pulley assembly 24. There is a possibility that an operator might accidentally get their fingers caught in the driven end support 23 from the bottom of the first opening 2251 along with the synchronous belt 26, causing injury. Therefore, to address this safety hazard, this embodiment includes a first baffle 227. This baffle 227 reduces the size of the opening on the lower rear side of the active pulley assembly 24, preventing the operator's fingers from being caught.

[0099] In order to facilitate the return belt of the synchronous belt 26 to enter the profile bracket 21 from the first receiving cavity 225, a second opening 2243 is provided on the first front side plate 224 to facilitate the passage of the synchronous belt 26. The second opening 2243 connects the first receiving cavity 225 with the cavity 2115 of the main profile 211.

[0100] In one embodiment, the active end support 22 is an integral injection-molded structure.

[0101] In another embodiment, the active end support 22 can also be composed of two plastic parts assembled into a plastic assembly structure. For example, it includes a first plastic part and a second plastic part. The first right side plate 222, the first front side plate 224, the support plate 226, and the first enclosure plate 227 are designed as an integrally molded plastic part structure to constitute the first plastic part; the first left side plate 221 constitutes the second plastic part; the first plastic part is provided with a plurality of second threaded holes 2214, and the second plastic part is assembled with the first plastic part by screwing screws into the second threaded holes 2214 to form the active end support 22. For example, including a third plastic part and a fourth plastic part, the first left side plate 221, the first front side plate 224, the support plate 226, and the first enclosure plate 227 are designed as an integrally molded plastic part structure to constitute the third plastic part; the first right side plate 222 constitutes the fourth plastic part; the third plastic part is provided with a plurality of third threaded holes (not shown in the figure), and the fourth plastic part is assembled with the third plastic part by screwing screws into the third threaded holes to form the active end support 22.

[0102] When the active end support 22 is an integral injection molded structure, the opening of the second opening 2243 faces upward. The return belt of the synchronous belt 26 can be inserted downward into the range of the second opening 2243 from the opening of the second opening 2243. Then, one end of the synchronous belt 26 is wrapped around the active pulley assembly 24, and the return belt passes through the second opening 2243 and the cavity 2115 to return to the driven pulley assembly 25.

[0103] When the active end support 22 is a plastic assembly structure, the second opening 2243 on the first front side plate 224 is a U-shaped opening structure with the opening facing the first right side plate 222 (when the first right side plate 222 is the fourth plastic part) or a U-shaped opening structure with the opening facing the first left side plate 221 (when the first left side plate 221 is the second plastic part). The return belt of the synchronous belt 26 can move laterally from the opening of the second opening 2243 to the range of the second opening 2243, and then longitudinally pass through the second opening 2243; when one end of the synchronous belt 26 is wrapped around the active pulley assembly 24, its return belt can pass through the second opening 2243 and the cavity 2115 to return to the driven pulley assembly 25 end.

[0104] The driven end support member 23 has a second front side plate portion 233, a second left side plate portion 231 and a second right side plate portion 232 disposed opposite to each other, and a second lower connecting plate portion 236 connecting the second left side plate portion 231 and the second right side plate portion 232 together at the bottom. The second front side plate portion 233 is adjacent to the second left side plate portion 231 on the left and to the second right side plate portion 232 on the right. A support groove 2311 is provided on the inner surface of both the second left side plate portion 231 and the second right side plate portion 232. The support groove 2311 extends forward by a predetermined length from the rear edge of the second left side plate portion 231 or the second right side plate portion 232, and an inlet and outlet 2312 is formed on the rear side of the second left side plate portion 231 or the second right side plate portion 232. The support groove 2311 is configured to support the driven pulley assembly 25 on one hand, and to provide space for the position adjustment of the driven pulley assembly 25 on the other hand.

[0105] The driven pulley assembly 25 includes a support shaft 251, a driven pulley 252 rotatably mounted on the support shaft 251 via bearings, a pair of adjusting screws 253 horizontally and radially passing through both ends of the support shaft 251, and a support block 254 sleeved on the adjusting screws 253. The two ends of the support shaft 251 are provided with a sixth threaded hole 2511 horizontally and radially passing through them. The adjusting screws 253 are threaded through the sixth threaded hole 2511 and have rotational freedom relative to the support block 254.

[0106] The driven pulley assembly 25 is installed by being pushed into the support groove 2311 from the rear side of the driven end support member 23. The two ends of the support shaft 251 extend into the support grooves 2311 of the second left side plate portion 231 and the second right side plate portion 232, respectively, and the support grooves 2311 provide support for the support shaft 251, thereby supporting the driven pulley 252.

[0107] The section of the support shaft 251 that extends into the support groove 2311 has its outer circumferential surface partially removed to form a shaft end structure 2512 with a lower horizontal surface and an upper horizontal surface. A sixth threaded hole 2511 is provided on the shaft end structure 2512. To limit the vertical stability of the support shaft 251 and prevent vertical jumping, the height of the support groove 2311 is greater than the height between the upper and lower horizontal surfaces of the shaft end structure 2512, and the height difference between the support groove 2311 and the height between the upper and lower horizontal surfaces of the shaft end structure 2512 is within a set range. This set range allows the shaft end structure 2512 to slide into the support groove 2311 from one end without causing significant or unacceptable vertical jumping. When the driven pulley assembly 25 is mounted on the driven end support 23, the lower horizontal surface of the shaft end structure 2512 rests on the bottom surface of the support groove 2311. In order to ensure that the axial position of the support shaft 251 does not shift within the support groove 2311, the second left side plate 231 and the second right side plate 232 are provided with limiting baffles 2313 to restrict the axial position of the support shaft 251 at both ends.

[0108] By limiting the size of the support groove 2311 and designing the shaft end structure 2512 of the support shaft 251, the multi-dimensional freedom of the support shaft 251 can be effectively limited, ensuring the stability of the installation position of the driven pulley assembly 25.

[0109] When the driven pulley assembly 25 is installed on the driven end support 23, the support block 254 blocks the inlet and outlet 2312 of the support slide 2311. The support slide 2311 has a second limiting groove 2314 on both the bottom surface and the top surface near the inlet and outlet 2312. The support block 254 is provided with a through hole 2541 for the adjusting screw 253 to pass through. The support block 254 has a plug body 2542 that is height-matched to the support slide 2311 and blocks the inlet and outlet 2312. The upper and lower surfaces of the plug body 2542 are provided with second limiting protrusions 2543 that cooperate with the second limiting groove 2314 to limit the movement. When the support block 254 is installed at the inlet and outlet 2312 of the support slide 2311, the second limiting protrusions 2543 extend into the second limiting groove 2314, restricting the freedom of movement of the support block 254 in the up, down, left, right and forward directions. Since the synchronous belt 26 applies a forward pulling force to the driven pulley assembly 25 when it is wound around the driven pulley assembly 25, the support block 254 does not need to worry about sliding backward and disengaging from the support slide 2311.

[0110] The adjusting screw 253 and the support block 254 constitute an adjusting assembly. By rotating the adjusting screw 253, the position of the support shaft 251 in the support groove 2311 is adjusted under the transmission cooperation between the adjusting screw 253 and the sixth threaded hole 2511, thereby adjusting the front and rear position of the driven pulley 252 and thus adjusting the tension of the synchronous belt 26.

[0111] The second side plate 233 has at least four second mounting holes 2331, which correspond to the first threaded holes 2119 at the end of the profile bracket 21. By screwing screws through the second mounting holes 2331 into the first threaded holes 2119, the driven end support 23 is locked and fixed to the profile bracket 21. The driven end support 23 can also be installed and fixed to the profile bracket 21 with only four screws. Compared with the original assembly and fixing of the two side plates, which required a total of eight screws, the number of screws is reduced, and the installation efficiency is improved.

[0112] The space between the second left side plate 231 and the second right side plate 232 forms a second receiving cavity 234 for accommodating the driven pulley assembly 25. The second receiving cavity 234 has a third opening 2341 for the driven pulley assembly 25 to enter and exit. The third opening 2341 extends from the top to the rear and downward along the outer periphery of the driven end support 23. To improve safety, a second baffle plate 235 is provided on the rear side of the driven end support 23 to reduce the gap between the third opening 2341 and the driven pulley assembly 25. A pair of latching parts 2351 are provided on the inner side of the second baffle plate 235, and the second baffle plate 235 is fastened to the second left side plate 231 and the second right side plate 232 respectively by the pair of latching parts 2351.

[0113] Similar to the structure of the first front side plate 224 of the active end support member 22, the second front side plate 233 is also provided with a plurality of second positioning protrusions 2332 that cooperate with the first strip groove 2111 and the second strip groove 2112 on the profile bracket 21 to achieve rapid positioning.

[0114] The structure of the driven end support member 23 can be one of the following four cases:

[0115] Case a): The driven end support 23 is an integral injection-molded structure;

[0116] Case b): The driven end support 23 includes a fifth plastic part and a sixth plastic part symmetrically assembled on the left and right sides; the fifth plastic part includes a second left side plate portion 231, half of a second lower connecting plate portion 236 and half of a second front side plate portion 233; the sixth plastic part includes a second right side plate portion 232, half of a second lower connecting plate portion 236 and half of a second front side plate portion 233; the fifth plastic part and the sixth plastic part are provided with a third mounting hole at the second lower connecting plate portion 236, and are fastened together by bolts, nuts or screws threaded holes;

[0117] Case c): The driven end support 23 includes a seventh plastic part and an eighth plastic part; the second left side plate 231, the second front side plate 233 and the second lower connecting plate 236 are integrally injection molded to form the seventh plastic part, and the second right side plate 232 forms the eighth plastic part; the seventh plastic part is provided with a plurality of fourth threaded holes, and the eighth plastic part is fastened to the seventh plastic part by screwing screws into the fourth threaded holes to form the driven end support 23;

[0118] Case d): The driven end support 23 includes a ninth plastic part and a tenth plastic part; the second right side plate 232, the second front side plate 233 and the second lower connecting plate 236 are integrally injection molded to form the ninth plastic part, and the second left side plate 231 forms the tenth plastic part; the ninth plastic part is provided with a plurality of fifth threaded holes, and the tenth plastic part is fastened to the ninth plastic part by screwing screws into the fifth threaded holes to form the driven end support 23.

[0119] The second front side plate 233 is also provided with a fourth opening 2333 to facilitate the entry of the timing belt 26 from the cavity 2115 into the second receiving cavity 234. The fourth opening 2333 connects the cavity 2115 and the second receiving cavity 234. In case a) or case b) above, the opening of the fourth opening 2333 faces upward; in case c) above, the opening of the fourth opening 2333 faces upward or to the right; in case d) above, the opening of the fourth opening 2333 faces upward or to the left.

[0120] When the driven pulley assembly 25 is mounted on the driven end support 23, the front section of the top of the driven end support 23 has a section without support below the synchronous belt 26. To compensate for the support gap in this section, a support sheet metal part 28 is also provided on the driven end support 23. One end of the support sheet metal part 28 is connected to the wear-resistant metal belt 27 and the other end is close to the driven pulley 252. The left and right sides of the support sheet metal part 28 have a pair of first folded plate portions 281 that are folded downward and fit the surface of the second left side plate portion 231 or the second right side plate portion 232, and the middle has a downwardly recessed limiting groove 282; the front ends of the pair of first folded plate portions 281 are folded to the left or right to form a pair of second folded plate portions 283 that fit the surface of the second front side plate portion 233; the rear side of the limiting groove 282 has a transition extension plate 284 that extends obliquely backward and downward. The first folding plate portion 281 and the second folding plate portion 283 restrict the left, right, and rearward freedom of the supporting sheet metal part 28 on the driven end support member 23. Since the front end of the driven end support member 23 is locked and fixed to the profile bracket 21, the second folding plate portion 283 is pressed between the driven end support member 23 and the profile bracket 21, restricting the forward freedom of the supporting sheet metal part 28. The timing belt 26 is supported by the limiting groove 282, and the two sides of the timing belt 26 are limited to prevent deviation. In addition, the setting of the transition extension plate 284 makes the rear end of the limiting groove 282 have an arc transition edge, which will not cause too much wear to the timing belt 26. Furthermore, the transition extension plate 284 is set at an angle downward, so even if the timing belt 26 is reversed, the transition extension plate 284 will not be lifted upward.

[0121] The drive module 3 includes a motor 31 and a main shaft 32 driven by the motor 31. The drive pulley assembly 24 is fixedly mounted on the main shaft 32 and rotates together with it, then drives the driven pulley assembly 25 to rotate synchronously via a synchronous belt 26. A bearing seat 33 is provided on the main shaft 32 near each drive pulley assembly 24. The bearing seat 33 is fixedly mounted on the drive end support 22 and can be locked in place by screwing screws into nuts 2213 embedded in grooves 2212. The bearing seat 33 can be a self-aligning bearing seat to ensure the horizontality of the main shaft 32 axis, reduce wear on the main shaft 32, and improve its service life.

[0122] The beneficial effects of this cost-reducing and efficiency-enhancing conveyor line are: reduced manufacturing costs and improved installation efficiency. Specifically:

[0123] (1) The active end support at one end of the conveyor profile bracket and the driven end support at the other end are all replaced with plastic parts instead of metal sheet metal parts, which reduces the manufacturing cost of the conveyor line.

[0124] (2) A support groove is provided on the inner side of the left and right side plates of the driven end support member. The outer side of the support groove has a limiting baffle to form a non-open structure. It is only open on the other opposite side to the receiving cavity. When assembling the driven pulley assembly, the driven pulley assembly is first assembled to form a module. During assembly, the timing belt is put on the driven pulley, and then the module is directly pushed into the receiving cavity from the inlet and outlet of the support groove along the support groove to complete the assembly. The assembly is convenient and quick.

[0125] (3) On both sides of the active end support, there are main shaft through holes with the opening facing upward. Before assembly, the drive module and the active pulley assembly are assembled into a module. Then, the module is put into the main shaft through hole from top to bottom. Finally, the guide slot of the upper section of the main shaft through hole is sealed with a snap plug, which improves the aesthetics and safety. Based on the above (2) and (3), the modular quick installation method of the conveyor line is realized, which greatly improves the installation efficiency.

[0126] (4) A nut is embedded in one of the side plates of the active end support to facilitate the installation of the bearing housing supporting the main shaft;

[0127] (5) Both the active end support and the driven end support are equipped with a baffle plate on the rear side to reduce the gap between the opening and the pulley assembly, which effectively prevents the operator's fingers from being caught in the receiving cavity and injured; in conjunction with the cavity structure in the profile bracket, the return belt of the synchronous belt is hidden inside, which greatly improves the safety of the conveyor line so as to meet the requirements of higher safety level.

[0128] (6) The two support members are also provided with openings on the side surface near the profile bracket to facilitate the passage of the synchronous belt body, so that the return belt body of the synchronous belt can pass from the receiving cavity into the cavity inside the profile bracket, or from the cavity inside the profile bracket into the receiving cavity, which improves the convenience of assembling the conveyor line.

[0129] (7) By setting a wear-resistant metal belt as a support contact under the synchronous belt, which can be a steel belt, the friction force on the synchronous belt is reduced by utilizing the smooth surface, strong hardness and excellent wear resistance of the steel belt, thus reducing the wear on the synchronous belt and improving its service life. In addition, the two ends of the wear-resistant metal belt are positioned by a bending structure. One end is pressed with the end face of the driven end support, and the other end is pressed by the pressing block in the active end support. Compared with the method of fixing the pad with multiple screws, the installation convenience and installation efficiency are improved.

Claims

1. A conveying line comprising a plurality of conveying modules, each of the conveying modules comprising a profile support, a driving end support and a driven end support respectively arranged at two ends of the profile support, a driving pulley assembly mounted on the driving end support, a driven pulley assembly mounted on the driven end support, and a synchronous belt wound between the driving pulley assembly and the driven pulley assembly; a cavity is arranged in the profile support for the lower belt body of the synchronous belt to pass through, and a plurality of first threaded holes are arranged on the end faces of the two ends of the profile support; the driving end support and the driven end support are both injection molded parts; the driven end support comprises a second front side plate portion, a second left side plate portion, a second right side plate portion and a second lower connecting plate portion which jointly surround a second accommodating cavity; the inner side surfaces of the second left side plate portion and the second right side plate portion opposite to each other are both provided with a support sliding groove which extends forward from the rear edge of the second left side plate portion or the second right side plate portion by a certain length, and an inlet and outlet is formed at the rear side of the second left side plate portion or the second right side plate portion, and the side of the support sliding groove facing the second accommodating cavity is of an open structure and communicates with the second accommodating cavity; the driven pulley assembly comprises a support shaft, a driven pulley rotatably arranged on the support shaft, and an adjusting assembly for adjusting the distance between the driven pulley and the driving pulley assembly and thereby adjusting the tension of the synchronous belt; the driven pulley assembly as a whole is pushed into the second accommodating cavity along the support sliding groove from the inlet and outlet to be mounted on the driven end support.

2. The conveyor line of claim 1, wherein, the profile support comprises a main profile and a side sealing plate; the cavity is formed on the main profile, and the cavity is provided with an open gap on the left side surface or the right side surface of the main profile; the side sealing plate and the main profile are detachably connected together by a clamping groove and clamping strip buckling structure and cover the open gap.

3. The conveyor line of claim 2, wherein, a groove structure is arranged on the top of the main profile and extends through the main profile in the extending direction of the main profile, the groove structure comprises a first clamping groove and a synchronous belt limiting groove above the first clamping groove, and the width of the first clamping groove is greater than the width of the synchronous belt limiting groove; a wear-resistant metal belt is arranged in the first clamping groove, the synchronous belt is located in the synchronous belt limiting groove, and the lower surface of the synchronous belt is attached to the surface of the wear-resistant metal belt, and the upper surface of the synchronous belt protrudes out of the synchronous belt limiting groove.

4. The conveyor line of claim 3, wherein, one end of the wear-resistant metal belt close to the driven end support is bent to form a first bending portion, and the other end of the wear-resistant metal belt close to the driving end support is bent to form a second bending portion; the first bending portion is pressed between the end face of the driven end support and the end face of the profile support; and the second bending portion is held under a pair of holding blocks in the driving end support.

5. The conveyor line of claim 1, wherein, The main drive end support has a first left side plate part, a first right side plate part, and a first lower connecting plate part. The first left side plate part and the first right side plate part are arranged in left and right opposition. The first lower connecting plate part is arranged at the bottom and between the first left side plate part and the first right side plate part. A space between the first left side plate part and the first right side plate part forms a first accommodating cavity for accommodating the main drive pulley assembly. The first accommodating cavity has a first opening extending from the top of the main drive end support to a lower position on the rear side along the outer peripheral contour of the main drive end support. A main shaft through hole is formed in the first left side plate part and the first right side plate part.

6. The conveyor line of claim 5, wherein, The main shaft through hole includes a hole seat and a guide-in slot. The hole seat is arranged to bear the main shaft. The guide-in slot is recessed from the top of the first left side plate part or the first right side plate part to the hole seat. The slot width of the guide-in slot is greater than the diameter of the main shaft. A buckle plug is installed in the guide-in slot. The guide-in slot has a first section and a second section in sequence along the slot depth direction. The slot width of the first section is greater than that of the second section, forming a step structure. The buckle plug has a plug head and a plug part. The plug head fills the space of the first section. The plug part fills the space of the second section. The plug head is seated on the step structure to achieve depth positioning.

7. The conveyor line of claim 6, wherein, A first limiting groove vertically extending is formed in the inner wall of the second section of the guide-in slot. A first limiting protrusion is arranged on the plug part to cooperate with the first limiting groove.

8. The conveyor line of claim 5, wherein, The main drive end support has a first front side plate part. The left side of the first front side plate part is adjacent to the first left side plate part. The right side of the first front side plate part is adjacent to the first right side plate part. A plurality of first mounting holes are arranged on the first front side plate part corresponding to the positions of the plurality of first threaded holes.

9. The conveyor line of claim 8, wherein, A first strip-shaped groove is arranged on the lower surface of the profile bracket to be embedded in the fastening fittings. Second strip-shaped grooves are arranged on the left and right sides of the profile bracket to be embedded in the fastening fittings. A plurality of first positioning protrusions are arranged on the first front side plate part to cooperate with the inner walls of the first strip-shaped groove and the second strip-shaped groove for positioning.

10. The conveyor line as claimed in claim 6, wherein, A support plate part is formed at the front end of the main drive end support. A pair of pressing stop blocks are arranged on the inner wall surfaces of the first left side plate part and the first right side plate part close to the rear side of the support plate part. A wear-resistant metal strip is embedded on the top of the profile bracket. The lower surface of the synchronous belt is attached to the upper surface of the wear-resistant metal strip. One end of the wear-resistant metal strip extends to cover the support plate part and is pressed downward by the pressing stop blocks.

11. The conveyor line of claim 6, wherein, The structure of the main drive end support is one of the following three cases: Case a): The main drive end support is an integral injection molding structure. Case b): the active end support includes a first plastic part and a second plastic part, the first right side plate part, the first front side plate part and the first lower connecting plate part are integrally injection molded to form the first plastic part, and the first left side plate part forms the second plastic part; a plurality of second threaded holes are arranged on the first plastic part, and the second plastic part is assembled with the first plastic part by screwing screws into the second threaded holes to form the active end support; Case c): the active end support includes a third plastic part and a fourth plastic part, the first left side plate part, the first front side plate part and the first lower connecting plate part are integrally injection molded to form the third plastic part, and the first right side plate part forms the fourth plastic part; a plurality of third threaded holes are arranged on the third plastic part, and the fourth plastic part is assembled with the third plastic part by screwing screws into the third threaded holes to form the active end support.

12. The delivery line of claim 11, wherein, The first front side plate part is provided with a second opening communicating with the first accommodating cavity and the cavity.

13. The conveying line of claim 12, wherein, when the structure of the active end support is the case a), the opening of the second opening is upward; when the structure of the active end support is the case b), the opening of the second opening is leftward; when the structure of the active end support is the case c), the opening of the second opening is rightward.

14. The delivery line of claim 1, wherein, The structure of the driven end support is one of the following four cases: Case a): the driven end support is integrally injection molded as a whole; Case b): the driven end support includes a fifth plastic part and a sixth plastic part which are symmetrically split together; the fifth plastic part includes the second left side plate part, half of the second lower connecting plate part and half of the second front side plate part; the sixth plastic part includes the second right side plate part, half of the second lower connecting plate part and half of the second front side plate part; the fifth plastic part and the sixth plastic part are provided with a third mounting hole at the second lower connecting plate part, and the fifth plastic part and the sixth plastic part are fastened and connected through bolt-nut or screw-thread hole cooperation; Case c): the driven end support includes a seventh plastic part and an eighth plastic part; the second left side plate part, the second front side plate part and the second lower connecting plate part are integrally injection molded to form the seventh plastic part, and the second right side plate part forms the eighth plastic part; a plurality of fourth threaded holes are arranged in the seventh plastic part, and the eighth plastic part is fastened and connected with the seventh plastic part by screwing screws into the fourth threaded holes to form the driven end support; Case d): the driven end support includes a ninth plastic part and a tenth plastic part; the second right side The plate part, the second front side plate part and the second lower connecting plate part are integrally injection molded to form the ninth plastic part, and the second left side plate part forms the tenth plastic part; the ninth plastic part is provided with a plurality of fifth threaded holes, and the tenth plastic part is fastened and connected with the ninth plastic part by screwing screws into the fifth threaded holes to form the driven end support.

15. The delivery line of claim 1, wherein, The outer peripheral surface of the section of the support shaft extending into the support sliding groove is partially removed to form an axial end structure having a lower horizontal surface and an upper horizontal surface, and the lower horizontal surface is located on the groove bottom of the support sliding groove.

16. The delivery line of claim 1, wherein, The second left side plate part and the second right side plate part are both provided with a limiting baffle limiting the axial end positions of the support shaft.

17. The delivery line of claim 1, wherein, The adjusting assembly comprises a pair of adjusting screws and a support clamping block movably sleeved on the adjusting screws; the section of the support shaft extending into the support sliding groove is provided with a horizontal and radially penetrating sixth threaded hole, the adjusting screws horizontally pass through the sixth threaded hole and are threadedly connected with the sixth threaded hole, and the support clamping block is blocked at the inlet and outlet.

18. The delivery line of claim 17, wherein, The support clamping block is provided with a through hole through which the adjusting screw passes and a plug body adapted to the height of the support sliding groove and blocking the inlet and outlet; the groove bottom surface and the groove top surface of the support sliding groove near the inlet and outlet are both provided with a limiting groove; the upper surface and the lower surface of the plug body are both provided with a limiting convex strip matched with the limiting groove to limit the position.

19. The delivery line of claim 1, wherein, The second accommodating cavity has a third opening extending from the top of the driven end support to a rear lower position along the outer peripheral contour of the driven end support; the rear side of the driven end support is provided with a second enclosing baffle part reducing the gap between the third opening and the driven pulley assembly.

20. The delivery line of claim 19, wherein, The inner side of the second enclosing baffle part is provided with a pair of clamping parts, and the second enclosing baffle part is clamped on the second left side plate part and the second right side plate part respectively through the pair of clamping parts.

21. The delivery line of claim 1, wherein, The lower surface of the profile bracket is provided with a first strip-shaped groove embedded with a fastening fitting, and the left and right sides of the profile bracket are provided with second strip-shaped grooves embedded with fastening fittings; the second front side plate part is provided with a plurality of second positioning protrusions matched with the inner walls of the first strip-shaped groove and the second strip-shaped groove.

22. The delivery line of claim 14, wherein, The second front side plate part is provided with a fourth opening communicating the second accommodating cavity and the cavity.

23. The conveyor line of claim 22, wherein, in the case a) or the case b), the fourth opening opens upward; in the case c), the fourth opening opens upward or to the right; in the case d), the fourth opening opens upward or to the left.

24. The delivery line of claim 1, wherein, The driven end support is provided with a support metal part supporting a synchronous belt. The plate part, the second front side plate part and the second lower connecting plate part are integrally injection molded to form the ninth plastic part, and the second left side plate part forms the tenth plastic part; the ninth plastic part is provided with a plurality of fifth threaded holes, and the tenth plastic part is fastened and connected with the ninth plastic part by screwing screws into the fifth threaded holes to form the driven end support.

25. The delivery line of claim 24, wherein, The left and right edges of the support sheet metal part have a pair of first folded plate parts which are folded downward and fit the surface of the second left side plate part or the second right side plate part, and the middle part of the support sheet metal part has a limiting support groove which is recessed downward; the front ends of the two first folded plate parts are folded leftward and rightward respectively to form a pair of second folded plate parts which fit the surface of the second front side plate part; the rear side of the limiting support groove has a transition extension plate which extends rearward and downward obliquely.

26. The conveying line of claim 1, further comprising a frame and a driving module fixed on the frame, the plurality of conveying modules are arranged in parallel on the frame in a left-right direction; the driving module comprises a motor and a main shaft driven to rotate by the motor; the driving pulley assembly is fixedly installed on the main shaft and rotates with the main shaft.

27. The delivery line of claim 26, wherein, A bearing seat is arranged on the main shaft near the position of each driving pulley assembly; a nut is embedded in the driving end support, and the bearing seat is fixedly installed on the driving end support by screwing into the nut.

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