Material conveying device in a drying chamber

Abstract

The application relates to a material conveying device in a drying room and belongs to the technical field of conveying devices. The material conveying device in the drying room comprises a conveying mesh belt and a connecting assembly. The conveying mesh belt comprises a plurality of belt sections connected in sequence, two adjacent belt sections are a first belt section and a second belt section respectively, the connecting assembly comprises a shaft sleeve, a shaft body and a cover body, the shaft sleeve is connected to the first belt section, the peripheral wall of the shaft sleeve is provided with a gap, and the peripheral wall of the shaft sleeve is provided with a ventilation opening. The shaft body is connected to the second belt section, the shaft body is accommodated in the shaft sleeve, the shaft body is hollow, and the peripheral wall of the shaft body is provided with an opening. The cover body comprises a first state and a second state, in the first state, the cover body is arranged on the opening, and in the second state, the cover body and the opening are arranged in a spaced mode along the radial direction of the shaft body. The spacing between the cover body and the shaft body is increased, and the cover body abuts against the inner wall of the shaft sleeve, so that the matching gap between the shaft body and the shaft sleeve is reduced, and the moving precision of the conveying mesh belt when being driven to move by a chain is improved.

Description

Technical Field

[0001] This invention belongs to the field of conveying device technology, and specifically relates to a material conveying device in a drying room. Background Technology

[0002] Conveyor belts are a common type of conveying device. They are typically made from metal wires (such as stainless steel or carbon steel wire) through precision weaving, stamping, and welding processes, forming a belt with a specific mesh structure. Due to their advantages of high temperature resistance, high structural strength, and good air permeability, conveyor belts are frequently used in food drying, ore conveying, and glass annealing. For example, in the food drying industry, conveyor belts are used to transport materials within the drying chamber, allowing the materials to flow freely within the chamber.

[0003] Conveyor belts typically employ a chain drive structure. In general, a chain drive structure includes a guide rod and a chain. A portion of the conveyor belt is woven from metal wires to form a sleeve-like structure. The guide rod passes through this sleeve, and its ends connect to chain links. When the chain moves under the drive of the sprocket, the chain moves the guide rod, which in turn moves the conveyor belt. The disadvantages of this structure are twofold. First, the gap between the guide rod and the woven sleeve is relatively large, resulting in low movement accuracy for conventional conveyor belts. Second, the guide rod acts directly on the sleeve, and over time, the sleeve may deform due to stress. This firstly changes the mesh size of the conveyor belt, causing localized sinking or jamming of material during transport, especially small particles or powdery materials that are prone to leakage or getting stuck in the deformed area. Secondly, the length of the conveyor belt changes, further reducing its movement accuracy. Summary of the Invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a material conveying device in a drying room, which can reduce the risk of deformation of the conveyor belt during the driving movement.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows: This application provides a material conveying device for a drying oven, including a conveyor belt and a connecting assembly. The conveyor belt includes multiple belt segments connected sequentially. The connecting assembly connects two adjacent belt segments, which are respectively a first belt segment and a second belt segment. The connecting assembly includes a bushing, a shaft, and a cover. The bushing is connected to the first belt segment, and its peripheral wall has a notch and a ventilation opening. The shaft is connected to the second belt segment and is housed within the bushing. The shaft is hollow, and its peripheral wall has an opening. The cover is movably connected to the shaft, and the cover has a first state and a second state. In the first state, the cover covers the opening; in the second state, the cover and the opening are spaced apart along the radial direction of the shaft.

[0006] In some embodiments, a limiting groove is provided around the circumference of the bushing, and an insertion part is movably provided on the shaft body along the radial direction of the shaft body, the insertion part being inserted into the limiting groove.

[0007] In some embodiments, the connecting assembly further includes a winding roller, a rotating arm, and a steel cable. The winding roller is rotatably connected to the shaft, the rotating arm is rotatably connected to the shaft, the axis of rotation of the rotating arm is perpendicular to the axial direction of the shaft, and the cover is connected to the rotating arm via a ball joint. The steel cable connects to the rotating arm and is wound around the winding roller.

[0008] In some embodiments, the shaft is provided with an abutment portion, and the rotating arm is configured such that the abutment portion abuts against the rotating arm when the distance between the cover and the shaft reaches its maximum value.

[0009] In some embodiments, the winding roller includes a roller body and a flexible sleeve. The roller body is rotatably connected to a shaft, and a movable retaining ring is movably provided on the roller body along its axial direction. An annular groove is provided on the peripheral wall of the roller body. The flexible sleeve is sleeved on the roller body, and one end of the flexible sleeve is connected to the roller body and the other end is connected to the movable retaining ring along its axial direction.

[0010] In some embodiments, the rotation axis of the winding roller is perpendicular to the axial direction of the shaft body. A limiting groove is provided around the circumference of the bushing. An insertion portion is movably provided on the shaft body along its radial direction, and the insertion portion is inserted into the limiting groove. The connecting assembly further includes a guide post, a movable portion, a rack portion, and a guide ramp. The guide post is connected to the shaft body, and its length direction is parallel to the axial direction of the shaft body. The movable portion is movably connected to the guide post, and the roller body is rotatably connected to the movable portion. The rack portion is connected to the insertion portion, and the peripheral wall of the movable retaining ring is provided with multiple teeth that mesh with the rack portion. The guide ramp is connected to the insertion portion, and the peripheral wall of the roller body abuts against the guide ramp.

[0011] In some embodiments, an elastic element is provided between the guide post and the movable part, the elastic element being used to provide an elastic force that causes the movable part to move toward the shaft.

[0012] In some embodiments, the elastic element includes a spring, the movable part is provided with a guide rod, the guide post is provided with a guide hole, the guide rod passes through the guide hole, and the spring is sleeved on the guide rod.

[0013] In some embodiments, the roller body is provided with a limiting portion, the cross-section of which is a regular polygon. Two arms are spaced apart on the side of the guide post away from the shaft body, and the two arms are arranged opposite each other along a first direction perpendicular to the shaft axis. The roller body is configured such that when the limiting portion moves between the two arms, the roller body cannot rotate.

[0014] In some embodiments, one of the two arms is a deflecting arm, and a receiving recess is provided on the opposite side of the deflecting arm and the other arm. The receiving recess is provided with a deflecting part, which is movably connected to the receiving recess along a first direction. Along the first direction, the deflecting part protrudes from the deflecting arm and the axial direction of the shaft. The deflecting part protrudes from the side of the deflecting arm near the shaft and is configured to deflect the unwinding of the steel cable by the roller.

[0015] The present invention has the following beneficial effects:

[0016] 1. Traditional through rods are mostly solid structures with no openings on the circumferential wall. The openings on the circumferential wall of the shaft increase the air permeability of the shaft. The openings of the shaft and the air vents of the bushing cooperate to effectively increase the air permeability of the connecting components compared to traditional structures.

[0017] 2. This device ensures that the conveyor belt is not directly subjected to force when the chain drives the conveyor belt to move, thus reducing the risk of deformation of the conveyor belt.

[0018] 3. The increased spacing between the cover and the shaft, with the cover resting against the inner wall of the bushing, effectively reduces the clearance between the shaft and the bushing, thus improving the movement accuracy of the conveyor belt when driven by the chain. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the material conveying device inside the drying room according to the present invention;

[0020] Figure 2 for Figure 1 Enlarged view of point A;

[0021] Figure 3 This is a schematic diagram of the material conveying device in the drying room of the present invention (section view of the shaft, with the second belt section disassembled);

[0022] Figure 4 for Figure 3 Enlarged view of point B;

[0023] Figure 5 for Figure 3 Enlarged view of point C;

[0024] Figure 6 This is a schematic diagram of the structure of the shaft of the present invention;

[0025] Figure 7 for Figure 6 Enlarged view of point D;

[0026] Figure 8 This is a schematic diagram of the connecting assembly (disassembly mating shaft) of the present invention;

[0027] Figure 9This is a schematic diagram of the connection assembly (disassembly mating shaft and flexible sleeve) of the present invention;

[0028] Figure 10 for Figure 9 Enlarged view of point E.

[0029] Reference numerals: 1-First belt section, 2-Second belt section, 3-Connecting assembly, 31-Ventilator, 32-Sleeve, 33-Matching shaft, 34-Limiting groove, 35-Insertion part, 36-Shaft body, 37-Cover body, 38-Rotating arm, 39-Connecting ring, 310-Abutting part, 311-Screw rod, 312-Roller body, 313-Flexible sleeve, 314-Modible retaining ring, 315-Gear, 316-Opening, 317-Guide inclined surface, 318-Rack part, 319-Elastic element, 320-Guide post, 321-Modible part, 322-Ring groove, 323-Guide rod, 324-Arm part, 325-Limiting part, 326-Actuating part. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0031] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0032] See Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7This application provides a material conveying device for a drying oven, including a conveyor belt and a connecting assembly 3. The conveyor belt includes multiple belt segments connected in sequence. The connecting assembly 3 is used to connect two adjacent belt segments, which are a first belt segment 1 and a second belt segment 2. The connecting assembly 3 includes a bushing 32, a shaft 36, and a cover 37. The bushing 32 is connected to the first belt segment 1, and a notch and a vent 31 are provided on the peripheral wall of the bushing 32. The shaft 36 is connected to the second belt segment 2 and is housed within the bushing 32. The shaft 36 is hollow, and an opening 316 is provided on the peripheral wall of the shaft 36. The cover 37 is movably connected to the shaft 36 and has a first state and a second state. In the first state, the cover 37 covers the opening 316. In the second state, the cover 37 and the opening 316 are spaced apart along the radial direction of the shaft 36.

[0033] Multiple segments are connected in sequence to form a ring structure.

[0034] Between any two adjacent segments, either one can be the first segment 1, and the other is the second segment 2.

[0035] The notch in the peripheral wall of the bushing 32 allows the second belt joint 2 to extend into the bushing 32, enabling the second belt joint 2 to connect with the shaft 36 within the bushing 32. Simultaneously, the notch increases the air permeability of the bushing 32.

[0036] The air vent 31 of the bushing 32 increases the air permeability of the bushing 32. When this device is applied to the drying room, the high-temperature airflow in the drying room can pass through the bushing 32, which increases the airflow effect and thus increases the drying effect.

[0037] The specific connection structure between the first belt section 1 and the bushing 32, and the specific connection structure between the second belt section 2 and the shaft 36 can be selected from the existing structures, and will not be described in detail here.

[0038] Shaft 36 is used for rotatable connection with the chain links.

[0039] Traditional through rods are mostly solid with no openings 316 on the circumferential wall. The openings 316 on the circumferential wall of the shaft 36 increase the ventilation of the shaft 36. The openings 316 on the shaft 36 and the ventilation openings 31 on the bushing 32 cooperate, which effectively increases the ventilation of the connecting component 3 compared to the traditional structure.

[0040] In the first state, the cover 37 covers the opening 316, and the overall volume of the shaft 36 is small, making it easy to put the shaft 36 into the bushing 32.

[0041] In the second state, the cover 37 opens the opening 316 of the shaft 36, increasing the ventilation of the shaft 36. On the other hand, the distance between the cover 37 and the shaft 36 increases, and the cover 37 abuts against the inner wall of the bushing 32. This is equivalent to reducing the fitting clearance between the shaft 36 and the bushing 32, improving the movement accuracy of the conveyor belt when it is driven by the chain.

[0042] The distance between the cover 37 and the shaft 36 is adjustable, so that the fit clearance between the shaft 36 and the bushing 32 can also be adjusted as needed.

[0043] This device ensures that the conveyor belt is not directly subjected to force when the chain drives the conveyor belt to move, thus reducing the risk of deformation of the conveyor belt.

[0044] In this embodiment of the application, the shaft 36 may be connected to a mating shaft 33, which is used to connect with the chain. The specific way in which the mating shaft 33 and the chain are connected can refer to existing methods.

[0045] See Figure 4 In some embodiments, the bushing 32 is provided with a limiting groove 34 around the circumference of the bushing 32, and the shaft 36 is provided with an insertion part 35 movably along the radial direction of the shaft body 36, the insertion part 35 being inserted into the limiting groove 34.

[0046] The specific structure in which the insertion part 35 is movably connected to the shaft 36 can be selected from the prior art. For example, the shaft 36 can be provided with a groove, and the insertion part 35 can be slidably connected to the groove.

[0047] Furthermore, the specific structure for driving the insertion part 35 to move can also be selected from the prior art. For example, the shaft 36 can be rotatably provided with a lead screw 311, which is threadedly connected to the insertion part 35, so that the insertion part 35 can be driven to rotate by the lead screw 311.

[0048] When the shaft 36 is installed in the bushing 32, the insertion part 35 can be moved so that the insertion part 35 is inserted into the limiting through groove 34, so that the axial position of the shaft 36 in the bushing 32 can be fixed, reducing the risk of the conveyor belt running off-center.

[0049] See Figure 3 , Figure 4 , Figure 5 and Figure 8 In some embodiments, the connecting assembly 3 further includes a winding roller, a rotating arm 38, and a steel cable (not shown). The winding roller is rotatably connected to the shaft 36, and the rotating arm 38 is rotatably connected to the shaft 36, with the axis of rotation of the rotating arm 38 perpendicular to the axial direction of the shaft 36. The cover 37 is connected to the rotating arm 38 via a ball joint. The steel cable connects to the rotating arm 38 and is wound around the winding roller.

[0050] Ball joints are components well known to those skilled in the art. Generally speaking, a ball joint includes a ball head seat and a ball head. The ball head seat can be disposed on the rotating arm 38, and the ball head can be connected to the cover 37. The ball head is accommodated in the ball head seat, thereby enabling the cover 37 to rotate relative to the rotating arm 38. This allows the cover 37 to adaptively adjust its posture when it abuts against the inner wall of the bushing 32.

[0051] In the initial state, the cover 37 is placed over the opening 316. When the winding roller rotates in the direction of winding the steel cable, the steel cable can pull the rotating arm 38 to rotate, thereby allowing the cover 37 to be removed from the opening 316.

[0052] Furthermore, the advantage of driving the cover 37 to move by rotating the arm 38 is that the rotation axis of the arm 38 relative to the shaft 36 can be offset from the center of the opening 316 in the axial direction of the shaft 36. In this way, when the arm 38 moves the cover 37, the cover 37 can move not only radially along the shaft 36, but also axially along the shaft 36. This increases the degree to which the opening 316 can be opened and further increases the ventilation of the shaft 36.

[0053] In this embodiment, both sides of the shaft 36 may be provided with winding rollers and steel cables, and the shaft 36 may be provided with multiple covers 37, which can be driven to move by the winding rollers and steel cables on both sides of the shaft 36 respectively.

[0054] The rotating arm 38 may be provided with a shaft hole, so that the rotating arm 38 and the shaft 36 can be connected by a rotating shaft. The rotating arm 38 may also be provided with a connecting ring 39, which is used for steel cable connection.

[0055] See Figure 4 In some embodiments, the shaft 36 is provided with an abutment portion 310, and the rotating arm 38 is configured such that the abutment portion 310 abuts against the rotating arm 38 when the distance between the cover 37 and the shaft 36 reaches its maximum value.

[0056] The abutment part 310 is used to limit the rotation stroke of the rotating arm 38, that is, when the rotating arm 38 abuts against the abutment part 310, the rotating arm 38 cannot rotate further.

[0057] Of course, when implementing the technical solution of this application, since the direction in which the rotating arm 38 carries the cover 37 toward the shaft 36 can be restricted by the steel cable, the rotating arm 38 can be in a position that does not contact the abutment part 310, which makes the adjustment of the fitting clearance between the shaft 36 and the bushing 32 more flexible.

[0058] A torsion spring or spring can be provided between the rotating arm 38 and the shaft 36 so that in the initial state, the rotating arm 38 can drive the cover 37 to cover the opening 316.

[0059] See Figure 5 , Figure 8 and Figure 9 In some embodiments, the winding roller includes a roller body 312 and a flexible sleeve 313. The roller body 312 is rotatably connected to a shaft 36, and a movable retaining ring 314 is movably provided on the roller body 312 along its axial direction. An annular groove 322 is provided on the peripheral wall of the roller body 312. The flexible sleeve 313 is sleeved on the roller body 312, and one end of the flexible sleeve 313 is connected to the roller body 312, while the other end is connected to the movable retaining ring 314 along its axial direction.

[0060] The roller body 312 may be provided with a fixed retaining ring and a movable retaining ring 314, and a space for winding the steel cable is formed between the fixed retaining ring and the movable retaining ring 314.

[0061] The annular groove 322 can be set between the fixed retaining ring and the movable retaining ring 314. The annular groove 322 is used to allow the steel cable to be gathered when the roller body 312 winds the steel cable.

[0062] The flexible sleeve 313 is also disposed between the fixed retaining ring and the movable retaining ring 314.

[0063] When the roller 312 rotates and winds up the steel cable, the cable can converge at the annular groove 322. As the number of turns of the cable increases, the flexible sleeve 313 deforms, allowing the movable retaining ring 314 to move towards the fixed retaining ring. In other words, the flexible sleeve 313 drives the movable retaining ring 314 to move, ensuring the cable converges at the annular groove 322 during winding. This design has several advantages: First, the flexible sleeve 313 isolates the cable from the roller 312, reducing mechanical damage to the cable surface. Second, during winding, the cable tension is not constant and will generate vibration and impact. The flexible sleeve 313 absorbs this impact energy and high-frequency vibration, making the roller 312 run more smoothly. Furthermore, the movement of the movable retaining ring 314 towards the fixed retaining ring restricts the winding area of ​​the cable on the roller 312, reducing the risk of the cable detaching from the roller 312. Furthermore, the movable retaining ring 314 moves to reduce the winding area of ​​the steel cable in the roller 312, so that the diameter of the winding structure formed by the steel cable can be larger, and the angle at which the rotating arm 38 can be driven to rotate increases when the roller 312 rotates a unit number of times.

[0064] Along the axial direction of the roller body 312, the end of the annular groove 322 is an inclined surface, that is, when the roller body 312 is winding the steel cable, the movable retaining ring 314 can gradually move towards the fixed retaining ring.

[0065] See Figure 8 and Figure 9In some embodiments, the rotation axis of the winding roller is perpendicular to the axial direction of the shaft body 36. Around the circumference of the bushing 32, the bushing 32 is provided with a limiting groove 34. Along the radial direction of the shaft body 36, the shaft body 36 is movably provided with an insertion part 35, which is inserted into the limiting groove 34. The connecting assembly 3 also includes a guide post 320, a movable part 321, a rack part 318, and a guide inclined surface 317. The guide post 320 is connected to the shaft body 36, and the length direction of the guide post 320 is parallel to the axial direction of the shaft body 36. The movable part 321 is movably connected to the guide post 320, and the roller body 312 is rotatably connected to the movable part 321. The rack part 318 is connected to the insertion part 35, and the peripheral wall of the movable retaining ring 314 is provided with multiple teeth 315, which mesh with the rack part 318. The guide slope 317 is connected to the insertion part 35, and the peripheral wall of the roller body 312 abuts against the guide slope 317.

[0066] Under the action of the movable part 321, the roller 312 can move along the axial direction of the shaft 36.

[0067] The rack portion 318 is connected to the insertion portion 35, so that the rack portion 318 can be driven to move through the insertion portion 35. Of course, the rack portion 318 may also not be connected to the insertion portion 35, and the rack portion 318 may be movably connected to the shaft 36.

[0068] The teeth 315 provided on the movable retaining ring 314 can increase the covering area of ​​the movable retaining ring 314. On the other hand, the teeth 315 mesh with the rack portion 318, so that when the rack portion 318 moves, it can drive the movable retaining ring 314 to rotate, and then drive the roller body 312 to rotate.

[0069] The guide ramp 317 can be configured as follows: In the initial state, the guide ramp 317 and the peripheral wall of the roller body 312 are not in contact. When the steel cable is wound for a certain length, the movable retaining ring 314 begins to move towards the fixed retaining ring, and the guide ramp 317 begins to abut against the roller body 312. In this way, the guide ramp 317 can reduce the moving resistance of the movable retaining ring 314, making it easier for the tooth 315 to exit from the rack part 318.

[0070] Under the action of the guide ramp 317, the roller 312 can be pushed to move away from the shaft 36. When the guide ramp 317 abuts against the roller 312, the roller 312 is initially locked due to the friction between the guide ramp 317 and the roller 312. This arrangement is advantageous because if the steel cable or rotating arm 38 is jammed, the roller 312 can rotate to unwind the steel cable, thus protecting the connecting assembly 3. Furthermore, as the distance the guide ramp 317 drives the roller 312 to move increases, the force between the guide ramp 317 and the roller 312 gradually increases, meaning the friction between the guide ramp 317 and the roller 312 becomes increasingly greater, making the locking of the roller 312 more reliable. Secondly, by reasonably setting the inclination angle of the guide slope 317, the roller 312 can be pushed to move a longer distance in a shorter distance. That is, if the angle of rotation of the roller 312 driven by the rack part 318 is insufficient and the angle of rotation of the steel cable traction rotating arm 38 has not reached the set value, the roller 312 can be further driven to move through the guide slope 317, and then the steel cable can further pull the rotating arm 38 to rotate.

[0071] See Figure 9 In some embodiments, an elastic element 319 is provided between the guide post 320 and the movable part 321, the elastic element 319 being used to provide an elastic force that moves the movable part 321 toward the shaft 36.

[0072] Under the action of the elastic element 319, the toothed portion 315 and the rack portion 318 can maintain a meshing state.

[0073] In some embodiments, the elastic element 319 includes a spring, the movable part 321 is provided with a guide rod 323, the guide post 320 is provided with a guide hole, the guide rod 323 passes through the guide hole, and the spring is sleeved on the guide rod 323.

[0074] The guide rod 323 and the guide hole cooperate to apply a force to the spring when the movable part 321 moves. For example, when the movable part 321 moves away from the shaft 36, the spring can be compressed.

[0075] The spring is sleeved on the guide rod 323, which increases the reliability of the spring fixation.

[0076] See Figure 10 In some embodiments, the roller body 312 is provided with a limiting part 325, the cross-section of the limiting part 325 is a regular polygon, and the guide post 320 is provided with two arms 324 at intervals on the side away from the shaft 36. The two arms 324 are arranged opposite to each other along a first direction, which is perpendicular to the axial direction of the shaft 36. The roller body 312 is configured such that when the limiting part 325 moves between the two arms 324, the roller body 312 cannot rotate.

[0077] The first direction can be the direction shown by the X-axis in the figure.

[0078] For example, the limiting part 325 can be a regular hexagon or a regular octagon.

[0079] When the guide slope 317 drives the roller 312 to move until the limiting part 325 moves between the two arms 324, the limiting part 325 cannot rotate between the two arms 324 under the limiting action of the two arms 324, thereby locking the roller 312. At the same time, the guide slope 317 drives the roller 312 to move away from the shaft 36, further increasing the angle at which the steel cable can pull the rotating arm 38 to rotate.

[0080] Before the limiting part 325 enters between the two limiting parts 325, when the guide slope 317 pushes the roller 312 to move, the rotation of the roller 312 can be observed to determine whether there is a fault in the connecting assembly 3. If the roller 312 is constantly unwinding the steel cable, the connecting assembly 3 may be stuck and needs to be checked. If the roller 312 only slips slightly or does not slip at all, then the guide slope 317 can be used to further drive the roller 312 to move, so that the limiting part 325 enters between the two arms 324, reducing the risk of the roller 312 unwinding the steel cable when it is driven to move by the guide slope 317.

[0081] See Figure 10 In some embodiments, one of the two arms 324 is a deflecting arm 324. A receiving recess is provided on the opposite side of the deflecting arm 324 and the other arm 324. A deflecting part 326 is provided in the receiving recess. The deflecting part 326 is movably connected to the receiving recess along a first direction. Along the first direction, the deflecting part 326 protrudes from the deflecting arm 324 and the axial direction of the shaft 36. The deflecting part 326 protrudes from the side of the deflecting arm 324 near the shaft 36. The deflecting part 326 is configured to deflect the unwinding of the steel cable by the roller body 312.

[0082] The actuating arm 324 is used to drive the winding roller to rotate in the direction of unwinding the steel cable.

[0083] As the limiting part 325 is about to enter between the two arms 324, the actuating part 326 of the actuating arm 324 first abuts against the limiting part 325, allowing the roller 312 to unwind a certain length of steel cable. The advantage of this arrangement is that, on the one hand, the posture of the limiting part 325 can be initially adjusted to facilitate the coordination between the limiting part 325 and the arm 324. On the other hand, before the winding roller enters between the two arms 324, a small section of steel cable is unwound first. This firstly reduces the risk of the steel cable breaking due to excessive tension, secondly reduces the resistance to driving the winding roller to move between the two arms 324, and thirdly increases the range of motion of the winding roller (for example, if the unwound length of the steel cable is short, the winding roller can rotate fewer times in the direction of winding the steel cable; unwinding part of the steel cable in this case increases the range of motion of the winding roller).

[0084] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications, alterations, alterations, or substitutions made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A material conveying device in a stoving chamber, characterized in that The utility model relates to a conveying net belt, including a plurality of sequentially connected belt sections, a connecting assembly (3) for connecting two adjacent belt sections, the two adjacent belt sections are respectively a first belt section (1) and a second belt section (2), the connecting assembly (3) includes a shaft sleeve (32) connected to the first belt section (1), the circumferential wall of the shaft sleeve (32) is provided with a notch, the circumferential wall of the shaft sleeve (32) is provided with a ventilation opening (31), a shaft body (36) connected to the second belt section (2), the shaft body (36) is contained in the shaft sleeve (32), the shaft body (36) is hollow, the circumferential wall of the shaft body (36) is provided with an opening (316), a cover body (37) movably connected to the shaft body (36), the cover body (37) includes a first state and a second state, when the first state, the cover body (37) is covered in the opening (316), when the second state, along the radial direction of the shaft body (36), the cover body (37) and the opening (316) are spaced apart. Around the circumference of the shaft sleeve (32), the shaft sleeve (32) is provided with a limiting through groove (34), along the radial direction of the shaft body (36), the shaft body (36) movably provided with an inserting part (35), the inserting part (35) is inserted into the limiting through groove (34). The connecting assembly (3) further includes a winding roller rotatably connected to the shaft body (36), a rotating arm (38) rotatably connected to the shaft body (36), the rotating axis of the rotating arm (38) is perpendicular to the axial direction of the shaft body (36), the cover body (37) is connected to the rotating arm (38) through a spherical hinge, a steel cable connected to the rotating arm (38), the steel cable is wound on the winding roller. The shaft body (36) is provided with an abutting part (310), and the rotating arm (38) is configured such that when the distance between the cover body (37) and the shaft body (36) reaches a maximum value, the abutting part (310) abuts against the rotating arm (38). The winding roller includes a roller body (312) rotatably connected to the shaft body (36), along the axial direction of the roller body (312), the roller body (312) is movably provided with a movable retaining ring (314), the circumferential wall of the roller body (312) is provided with a ring groove (322), a flexible sleeve (313) sleeved on the roller body (312), along the axial direction of the flexible sleeve (313), one end of the flexible sleeve (313) is connected to the roller body (312), and the other end is connected to the movable retaining ring (314). The rotating axis of the winding roller is perpendicular to the axial direction of the shaft body (36), around the circumference of the shaft sleeve (32), the shaft sleeve (32) is provided with a limiting through groove (34), along the radial direction of the shaft body (36), the shaft body (36) movably provided with an inserting part (35), the inserting part (35) is inserted into the limiting through groove (34), the connecting assembly (3) further includes a guide column (320) connected to the shaft body (36), the length direction of the guide column (320) is parallel to the axial direction of the shaft body (36).

2. The conveyor as claimed in claim 1, wherein, ​ 3. The conveyor as claimed in claim 1, wherein, ​ ​ ​ ​ 4. The material conveying device in a drying chamber according to claim 3, characterized in that ​ 5. The conveyor as claimed in claim 3, wherein, ​ ​ ​ 6. The conveyor as claimed in claim 5, wherein, ​ ​ A movable part (321) is movably connected to the guide column (320), and the roller body (312) is rotationally connected to the movable part (321); A rack part (318) is connected to the insertion part (35), and the peripheral wall of the movable blocking ring (314) is provided with a plurality of tooth parts (315), and the tooth parts (315) and the rack part (318) are engaged; A guide inclined surface (317) is connected to the insertion part (35), and the peripheral wall of the roller body (312) abuts against the guide inclined surface (317).

7. The conveyor as claimed in claim 6, wherein, An elastic member (319) is arranged between the guide column (320) and the movable part (321), and the elastic member (319) is used to provide an elastic force for moving the movable part (321) towards the shaft body (36).

8. The conveyor as claimed in claim 7, wherein, The elastic member (319) includes a spring, the movable part (321) is provided with a guide rod (323), the guide column (320) is provided with a guide hole, the guide rod (323) is arranged in the guide hole, and the spring is sleeved on the guide rod (323).

9. The conveyor as claimed in claim 6, wherein, The roller body (312) is provided with a limiting part (325), the cross section of the limiting part (325) is a regular polygon, two arm parts (324) are arranged at intervals on the side of the guide column (320) away from the shaft body (36), the two arm parts (324) are oppositely arranged along a first direction, and the first direction is perpendicular to the axial direction of the shaft body (36). The roller body (312) is configured to be unable to rotate when the limiting part (325) moves to between the two arm parts (324).

10. The conveyor as claimed in claim 9, wherein, Among the two arm parts (324), one is a pushing arm part (324), and the pushing arm part (324) is provided with a containing recess on the opposite side of the other arm part (324), the containing recess is provided with a pushing part (326), the pushing part (326) is movably connected to the containing recess along the first direction, the pushing part (326) protrudes from the pushing arm part (324) along the first direction, the pushing part (326) protrudes from the pushing arm part (324) on the side close to the shaft body (36) along the axial direction of the shaft body (36), and the pushing part (326) is configured to push the roller body (312) to unwind the steel cable.

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