Sand feeding prevention structure of turning roller conveying belt

Abstract

The utility model discloses a sand feeding prevention structure of a turning roller conveying belt, which relates to the field of mould sand blasting processing, and is technically characterized by comprising a conveying frame, a plurality of conveying rollers are arranged in the conveying frame, a driving wheel is arranged on one side of each conveying roller, a plurality of sand blocking frames are arranged at the top of the conveying frame, and the sand blocking frames are arranged on the conveying frame. The multiple sand blocking frames are located above the transmission wheels of the multiple conveying rollers, multiple supporting bases are arranged at the top of the conveying frame, clamping springs are arranged at the tops of the supporting bases, clamping plates are arranged at the tops of the clamping springs, clamping columns are arranged at the bottoms of the clamping plates, and mounting bases are arranged on one sides of the sand blocking frames. A clamping hole is formed in the top of the mounting base, and the technical problem that an existing sand blocking frame is fixedly arranged on a turning roller conveying belt, so that the sand blocking frame is difficult to replace after being damaged, and maintenance is inconvenient is solved.

Description

Technical Field

[0001] This utility model relates to the field of mold sandblasting, and in particular to a sand-proof structure for a turning roller conveyor belt. Background Technology

[0002] Sandblasting is a surface treatment process that cleans and roughens the surface of a mold by spraying sand at high speed, thereby achieving the purpose of cleaning, removing oxide layers, removing rust, and roughening the surface. This process can enhance the wear resistance and corrosion resistance of the mold. After the mold is sandblasted, it usually needs to be transported by a conveyor belt. Due to the layout limitations of the production line, the conveying path cannot always be a straight line. Therefore, in actual operation, the mold transportation process inevitably needs to change direction. In order to adapt to this layout requirement, the turning roller conveyor belt has become an ideal choice. The turning roller conveyor belt is designed with a specific turning radius, which allows the mold to pass through the turning area smoothly while maintaining a horizontal state.

[0003] However, after the mold is sandblasted, its surface will be covered with sand residue. This residue is mainly due to some particles of the high-speed abrasive particles failing to completely bounce off the mold surface when impacting it. When the mold is conveyed to the turning roller conveyor belt, the sand residue will fall to the outside of the roller due to the relative movement between the mold and the turning roller conveyor belt. However, since the roller is driven by a belt-driven drive wheel, and there are meshing teeth on the drive wheel and the outside of the roller, when the sand residue falls between the drive wheel and the roller, the presence of the sand residue will interfere with the normal meshing of the drive wheel and the roller, leading to wear or damage to the drive wheel.

[0004] To reduce the amount of sand residue falling onto the drive wheel and rollers, sand baffles are usually installed above the turning roller conveyor belt. The main purpose is to intercept and reduce the sand residue falling from the mold surface into the space between the drive wheel and rollers. Due to the different sizes, weights, and shapes of the molds, their motion inertia during the conveying process will also be different. Larger or heavier molds may have difficulty changing their direction of movement quickly when turning due to inertia, thus colliding with the sand baffle and causing damage to the sand baffle. However, the current sand baffles are all fixedly installed on the turning roller conveyor belt, making it difficult to replace them after damage and causing inconvenience in maintenance. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a sand-proof structure for a turning roller conveyor belt. The purpose is to solve the technical problem that the current sand baffles are fixedly installed on the turning roller conveyor belt, which makes it difficult to replace the sand baffles after they are damaged, resulting in inconvenience in maintenance.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] A sand-prevention structure for a curved roller conveyor belt includes a conveyor frame with multiple conveyor rollers inside. A drive wheel is located on one side of each conveyor roller. Multiple sand-blocking frames are located on the top of the conveyor frame, above the drive wheels of the multiple conveyor rollers. Multiple support seats are located on the top of each support seat, with locking springs on top of each support seat. Locking plates are located on top of each locking spring, and locking posts are located at the bottom of each locking plate. Mounting seats are located on one side of each sand-blocking frame, with locking holes on top of each mounting seat. The locking posts of the multiple locking plates engage with the locking holes of the multiple mounting seats, causing the bottom of the mounting seat to abut against the top of the conveyor frame.

[0008] When a damaged sand baffle needs to be replaced, maintenance personnel only need to lift the locking plate upwards to overcome the elastic force of the locking spring and disengage the locking post from the locking hole. When installing a new sand baffle, simply place the mounting base on top of the conveyor frame and align it with the locking plate. The locking plate retracts through the locking spring, which drives the locking post to engage with the locking hole, causing the bottom of the mounting base to contact the top of the conveyor frame. Thus, the entire replacement process requires no tools, simplifying the installation process and enabling quick disassembly and assembly of the sand baffle.

[0009] Furthermore, in this application, the top of the conveyor frame is provided with multiple rows of positioning pins, and the bottom of the mounting base is provided with a row of positioning bottom holes, and the positioning bottom holes of the multiple mounting bases are respectively inserted into the multiple rows of positioning pins.

[0010] By setting multiple rows of positioning pins on the top of the conveyor frame and opening positioning bottom holes at the bottom of the mounting base, the sand baffle is accurately positioned, and the sand baffle is prevented from shifting in the horizontal direction, ensuring that the sand baffle always stays in the correct working position.

[0011] Furthermore, in this application, the top of the support base is provided with a piston cylinder, and a piston rod is slidably connected inside the piston cylinder. One end of the piston rod is connected to the locking plate, and the piston cylinder and the piston rod are located inside the locking spring.

[0012] When the positioning plate is subjected to external force, the piston rod slides axially inside the piston cylinder. This sliding is restricted to the vertical direction, which effectively prevents the lateral deformation of the positioning spring and ensures that the movement trajectory of the positioning plate always stays on the predetermined straight path, avoiding the torsion and displacement that are easy to occur in the positioning spring in the traditional structure.

[0013] Furthermore, in this application, there are multiple locking springs, and the top of the support base is provided with multiple sets of first support rods, each set having two first support rods. One side of each first support rod is provided with a first locking protrusion, and the first locking protrusions of the two first support rods in a set are engaged with the outer edge of the other end of the adjacent locking spring. The bottom of the locking plate is provided with multiple sets of second support rods, each set having two second support rods. One side of each second support rod is provided with a second locking protrusion, and the second locking protrusions of the two second support rods in a set are engaged with the outer edge of one end of the adjacent locking spring.

[0014] Furthermore, in this application, the top of the card slot plate is provided with a movable handle, which is n-shaped.

[0015] Furthermore, in this application, the bottom of the sand baffle is provided with two guide side plates, which are arranged in a figure-eight shape and are located on both sides of the adjacent transmission wheel.

[0016] Furthermore, in this application, a sand baffle is provided on the other side of the sand baffle frame, one end of the sand baffle is close to the adjacent conveying roller, and the sand baffle is elastic.

[0017] Furthermore, in this application, the bottom of the sand baffle is provided with two extended side plates, the two extended side plates are located on one side of the two guide side plates, one end of the two extended side plates is close to the two sides of the adjacent conveying rollers, and the extended side plates are elastic.

[0018] Furthermore, in this application, a positioning post is provided on one side of the extended side plate, the positioning post is elastic, and a positioning hole is provided on one side of the flow guide side plate, the positioning post engaging with the positioning hole.

[0019] Furthermore, in this application, the other side of the sand baffle is provided with a detachable fixing plate. A fixing notch is provided on one side of the fixing plate, and a fixing end is provided at the other end of the sand baffle. The fixing end is inserted into the fixing notch so that the fixing end abuts against the other side of the sand baffle. A first fixing hole is provided on the other side of the sand baffle, and a second fixing hole is provided inside the fixing plate. A fixing bolt is inserted into the second fixing hole, and the fixing bolt is threaded into the first fixing hole.

[0020] This utility model has the following beneficial effects:

[0021] When a damaged sand baffle needs to be replaced, maintenance personnel only need to lift the locking plate upwards to overcome the elastic force of the locking spring and disengage the locking post from the locking hole. When installing a new sand baffle, simply place the mounting base on top of the conveyor frame and align it with the locking plate. The locking plate retracts through the locking spring, which drives the locking post to engage with the locking hole, causing the bottom of the mounting base to contact the top of the conveyor frame. Thus, the entire replacement process requires no tools, simplifying the installation process and enabling quick disassembly and assembly of the sand baffle. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the transmission wheel of this utility model.

[0024] Figure 3 This is a schematic diagram of the positioning pin of this utility model.

[0025] Figure 4 This is a schematic diagram of the positioning bottom hole of this utility model.

[0026] Figure 5 This is a schematic diagram of the card slot plate of this utility model.

[0027] Figure 6 This is a schematic diagram of the positioning post of this utility model.

[0028] In the attached figures, the following labels are used:

[0029] 1. Conveyor frame; 2. Conveyor roller; 3. Sand baffle; 4. Guide top frame; 5. Guide arc surface; 6. Guide side plate; 7. Mounting base; 8. Fixing plate; 9. Fixing notch; 10. First fixing hole; 11. Second fixing hole; 12. Fixing bolt; 13. Sand baffle; 14. Extension side plate; 15. Positioning post; 16. Fixing end; 17. Locking hole; 18. Positioning bottom hole; 19. Positioning pin; 20. Support base; 21. Locking plate; 22. Locking post; 23. Locking spring; 24. Piston cylinder; 25. First support rod; 26. First locking protrusion; 27. Second support rod; 28. Second locking protrusion; 29. ​​Handle; 30. Transmission wheel; 31. Positioning hole; 32. Piston rod. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not 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 utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In industrial production, the sand baffle of a turning roller conveyor is a key component preventing sand from entering the transmission mechanism, and its installation method directly affects the maintenance efficiency and operational stability of the equipment. The currently prevalent fixed installation structure has significant drawbacks. When the sand baffle is damaged by a mold impact, extensive disassembly and replacement are required, which not only prolongs maintenance time but also increases equipment downtime losses. Furthermore, due to the complexity of the replacement process, maintenance personnel often resort to temporary repairs, which reduces the protective effect of the sand baffle and allows sand to easily enter the transmission system.

[0034] To address the difficulty in replacing sand baffles on curved roller conveyors, several possible solutions were considered: quick-release bolt structure and sliding groove structure. While the quick-release bolt structure provides a stable connection, it still requires tools for disassembly and assembly. The sliding groove structure is easy to install, but it may loosen under vibration, affecting the protective effect of the sand baffle.

[0035] Reference Figures 1-6In some specific embodiments, a sand-proof structure for a turning roller conveyor belt includes a conveyor frame 1, with multiple conveyor rollers 2 inside the conveyor frame 1. A drive wheel 30 is provided on one side of each conveyor roller 2. Multiple sand-blocking frames 3 are provided on the top of the conveyor frame 1, located above the drive wheels 30 of the multiple conveyor rollers 2. Multiple support seats 20 are provided on the top of the conveyor frame 1. A locking spring 23 is provided on the top of the support seat 20. A locking plate 21 is provided on the top of the locking spring 23. A locking post 22 is provided at the bottom of the locking plate 21. A mounting seat 7 is provided on one side of the sand-blocking frame 3. A locking hole 17 is opened on the top of the mounting seat 7. The locking posts 22 of the multiple locking plates 21 are respectively engaged with the locking holes 17 of the multiple mounting seats 7, so that the bottom of the mounting seat 7 abuts against the top of the conveyor frame 1.

[0036] With the above technical solution, when the damaged sand baffle 3 needs to be replaced, the maintenance personnel only need to lift the locking plate 21 upwards to overcome the elastic force of the locking spring 23 so that the locking post 22 can disengage from the locking hole 17; when the new sand baffle 3 is installed, the mounting base 7 is placed on the top of the conveyor frame 1 and aligned with the locking plate 21. The locking plate 21 retracts through the locking spring 23, and the locking spring 23 drives the locking post 22 to engage with the locking hole 17, so that the bottom of the mounting base 7 abuts against the top of the conveyor frame 1. Thus, the entire replacement process does not require any tools, which simplifies the installation process and realizes the quick disassembly and assembly of the sand baffle 3.

[0037] In addition, during the mold conveying process, even if a collision occurs, the elastic snap-fit ​​structure can provide a certain buffering effect, reducing the impact force on the sand baffle 3. When the impact force exceeds the set threshold, the impact force will be transmitted to the positioning plate 21 through the sand baffle 3, and the positioning plate 21 will transmit it to the positioning spring 23, causing the positioning spring 23 to extend, and the positioning post 22 will actively disengage from the positioning hole 17, reducing the damage to the sand baffle 3.

[0038] Reference Figures 3-4 In some specific embodiments, the top of the conveyor frame 1 is provided with multiple rows of positioning pins 19, and the bottom of the mounting base 7 is provided with a row of positioning bottom holes 18. The positioning bottom holes 18 of the multiple mounting bases 7 are respectively inserted into the multiple rows of positioning pins 19.

[0039] Through the above technical solution, by setting multiple rows of positioning pins 19 on the top of the conveyor frame 1 and opening positioning bottom holes 18 at the bottom of the mounting base 7, the sand baffle 3 is accurately positioned, and the sand baffle 3 is prevented from shifting in the horizontal direction, ensuring that the sand baffle 3 always stays in the correct working position.

[0040] Reference Figures 1-6In some specific embodiments, the top of the support base 20 is provided with a piston cylinder 24, and a piston rod 32 is slidably connected inside the piston cylinder 24. One end of the piston rod 32 is connected to the locking plate 21, and the piston cylinder 24 and the piston rod 32 are located inside the locking spring 23.

[0041] With the above technical solution, when the positioning plate 21 is subjected to external force, the piston rod 32 slides axially in the piston cylinder 24. This sliding is restricted to the vertical direction, which effectively prevents the lateral deformation of the positioning spring 23 and ensures that the movement trajectory of the positioning plate 21 always stays on the predetermined straight path, avoiding the torsion and displacement that the positioning spring 23 is prone to in the traditional structure.

[0042] Reference Figure 6 In some specific embodiments, there are multiple locking springs 23, and the top of the support base 20 is provided with multiple sets of first support rods 25, each set of first support rods 25 has two first support rods 25, and one side of the first support rod 25 is provided with a first locking protrusion 26. The first locking protrusion 26 of the two first support rods 25 in a set is engaged with the outer edge of the other end of the adjacent locking spring 23. The bottom of the locking plate 21 is provided with multiple sets of second support rods 27, each set of second support rods 27 has two second support rods 27, one side of the second support rod 27 is provided with a second locking protrusion 28, and the second locking protrusion 28 of the two second support rods 27 in a set is engaged with the outer edge of one end of the adjacent locking spring 23.

[0043] Through the above technical solution, the first support rod 25, the second support rod 27 and the corresponding first locking protrusion 26, the second locking protrusion 28 and the locking spring 23 form a reliable mechanical connection to prevent the locking spring 23 from loosening or falling off during use; at the same time, the symmetrical design of the two first support rods 25 or the two second support rods 27 provides better support effect and force balance, ensuring the stability and reliability of the entire sand-proof structure.

[0044] Reference Figures 3-5 In some specific embodiments, the top of the card slot plate 21 is provided with a movable handle 29, which is n-shaped.

[0045] Through the above technical solution, the n-shaped design of the movable handle 29 increases the gripping area, allowing the operator to easily pull the locking plate 21 upward, thereby compressing the locking spring 23 and realizing the separation or locking of the locking post 22 and the locking hole 17.

[0046] Reference Figures 1-5 In some specific embodiments, the bottom of the sand baffle 3 is provided with two guide side plates 6, which are arranged in a figure-eight shape and are located on both sides of the adjacent transmission wheel 30.

[0047] With the above technical solution, the guide plate 6 is located on both sides of the adjacent drive wheel 30, which covers the area where sand may fall, and can better pour the splashed sand to the ground, further reducing the sand entering the drive wheel 30.

[0048] In addition, the top of the sand baffle 3 is provided with a flow guide top frame 4, and the flow guide top frame 4 is provided with a flow guide arc surface 5. The convex surface of the flow guide arc faces upward, thereby preventing sand and gravel from accumulating on the top of the sand baffle 3.

[0049] Reference Figures 4-6 In some specific embodiments, a sand baffle plate 13 is provided on the other side of the sand baffle frame 3. One end of the sand baffle plate 13 is close to the adjacent conveying roller 2, and the sand baffle plate 13 is elastic.

[0050] With the above technical solution, one end of the sand baffle 13 is close to the conveying roller 2, which can form an effective physical barrier to block sand and other materials. The sand baffle 13 is made of elastic material. When larger sand particles hit, the sand baffle 13 will deform slightly and recover quickly. This buffering effect not only protects the sand baffle 13 itself, but also effectively reduces the force of sand rebound and prevents sand from splashing to other positions.

[0051] Reference Figures 4-6 In some specific embodiments, the bottom of the sand baffle 13 is provided with two extended side plates 14. The two extended side plates 14 are located on one side of the two guide side plates 6. One end of the two extended side plates 14 is close to the two sides of the adjacent conveying roller 2, and the extended side plates 14 are elastic.

[0052] With the above technical solution, when sand and gravel splash onto the extended side plate 14, the extended side plate 14 is elastic, which buffers the impact force of the sand and gravel, thereby reducing the impact force of the sand and gravel and further preventing the sand and gravel from splashing everywhere.

[0053] Reference Figure 5 In some specific embodiments, a positioning post 15 is provided on one side of the extended side plate 14. The positioning post 15 is elastic, and a positioning hole 31 is provided on one side of the flow guide side plate 6. The positioning post 15 is engaged with the positioning hole 31.

[0054] The above technical solution, through the snap-fit ​​structure of the elastic positioning post 15 and the positioning hole 31, not only ensures the connection strength, but also positions the installation position of the extension side plate 14, thereby improving the installation accuracy of the extension side plate 14.

[0055] Reference Figure 5In some specific embodiments, a detachable fixing plate 8 is provided on the other side of the sand baffle 3. A fixing notch 9 is provided on one side of the fixing plate 8. A fixing end 16 is provided on the other end of the sand baffle 13. The fixing end 16 is inserted into the fixing notch 9 so that the fixing end 16 abuts against the other side of the sand baffle 3. A first fixing hole 10 is provided on the other side of the sand baffle 3. A second fixing hole 11 is provided inside the fixing plate. A fixing bolt 12 is inserted into the second fixing hole 11. The fixing bolt 12 is threaded into the first fixing hole 10.

[0056] Through the above technical solution, a reliable connection between the sand baffle plate 13 and the sand baffle frame 3 is achieved by combining multiple structures such as the fixing plate 8, fixing notch 9, fixing end 16, fixing hole and fixing bolt 12. This connection method is not only convenient to install and disassemble, but also stable and reliable, ensuring that the sand baffle plate 13 can work stably for a long time and effectively preventing sand and gravel from entering the transmission wheel 30.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A sand-prevention structure for a curved roller conveyor belt, comprising a conveyor frame, wherein a plurality of conveyor rollers are arranged inside the conveyor frame, a drive wheel is provided on one side of each conveyor roller, and a plurality of sand-blocking frames are provided on the top of the conveyor frame, wherein the plurality of sand-blocking frames are located above the drive wheels of the plurality of conveyor rollers, characterized in that, The top of the conveyor frame is provided with multiple support seats, the top of the support seats is provided with a locking spring, the top of the locking spring is provided with a locking plate, the bottom of the locking plate is provided with a locking post, one side of the sand baffle is provided with a mounting seat, the top of the mounting seat is provided with a locking hole, and the locking posts of the multiple locking plates respectively engage with the locking holes of the multiple mounting seats, so that the bottom of the mounting seat abuts against the top of the conveyor frame.

2. The anti-sand structure for a turning roller conveyor belt according to claim 1, characterized in that, The top of the conveyor frame is provided with multiple rows of positioning pins, and the bottom of the mounting base is provided with a row of positioning bottom holes. The positioning bottom holes of the multiple mounting bases are respectively inserted into the multiple rows of positioning pins.

3. The anti-sand structure for a turning roller conveyor belt according to claim 1, characterized in that, The top of the support base is provided with a piston cylinder, and a piston rod is slidably connected inside the piston cylinder. One end of the piston rod is connected to the locking plate, and the piston cylinder and the piston rod are located inside the locking spring.

4. The anti-sand structure for a turning roller conveyor belt according to claim 3, characterized in that, The positioning springs are multiple, and the top of the support base is provided with multiple sets of first support rods, each set having two first support rods. One side of each first support rod has a first locking protrusion, and the first locking protrusions of the two first support rods in a set engage with the outer edge of the other end of the adjacent positioning spring. The bottom of the positioning plate is provided with multiple sets of second support rods, each set having two second support rods. One side of each second support rod has a second locking protrusion, and the second locking protrusions of the two second support rods in a set engage with the outer edge of one end of the adjacent positioning spring.

5. The anti-sand structure for a turning roller conveyor belt according to claim 4, characterized in that, The top of the card slot plate is equipped with a movable handle, which is n-shaped.

6. The anti-sand structure for a curved roller conveyor belt according to claim 1, characterized in that, The bottom of the sand baffle is provided with two guide side plates, which are arranged in a figure-eight shape and located on both sides of the adjacent transmission wheel.

7. The anti-sand structure for a curved roller conveyor belt according to claim 6, characterized in that, A sand baffle plate is provided on the other side of the sand baffle frame, with one end of the sand baffle plate close to the adjacent conveying roller, and the sand baffle plate is elastic.

8. The anti-sand structure for a curved roller conveyor belt according to claim 7, characterized in that, The bottom of the sand baffle is provided with two extended side plates, which are located on one side of the two guide side plates. One end of each of the two extended side plates is close to the two sides of the adjacent conveying rollers, and the extended side plates are elastic.

9. The anti-sand structure for a curved roller conveyor belt according to claim 8, characterized in that, One side of the extended side plate is provided with a positioning post, which is elastic, and one side of the flow guide side plate is provided with a positioning hole, which engages with the positioning post.

10. The anti-sand structure for a turning roller conveyor belt according to claim 9, characterized in that, The sand baffle is provided with a detachable fixing plate on the other side. A fixing notch is provided on one side of the fixing plate, and a fixing end is provided at the other end of the sand baffle. The fixing end is inserted into the fixing notch so that the fixing end abuts against the other side of the sand baffle. A first fixing hole is provided on the other side of the sand baffle, and a second fixing hole is provided inside the fixing plate. A fixing bolt is inserted into the second fixing hole, and the fixing bolt is threaded into the first fixing hole.

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