A coal mine belt conveyor carrier roller mold

Abstract

A kind of coal mine belt conveyor roller mould, including inner layer cylinder mould, middle layer cylinder mould and outer layer cylinder mould by inside to outside sequentially concentric nesting design;Distance is left between middle layer cylinder mould and outer layer cylinder mould to form comb tooth forming cavity, multiple slots are uniformly distributed on the cylinder wall of outer layer cylinder mould along the axial direction, baffle is inserted in slot, baffle is used to separate comb tooth forming cavity into multiple independent chambers to form multiple combs, fixed plate is equipped at both ends of outer layer cylinder mould, and fixed plate at both ends of outer layer cylinder mould is connected with top die for closing mould cavity end;Distance is left between inner layer cylinder mould and middle layer cylinder mould to form roller cylinder forming cavity, recess is equipped on middle layer cylinder mould, recess is used to form mounting groove on roller cylinder and mounting boss on the inner wall of comb.The utility model aims at improving the problem of low production efficiency of comb-shaped roller with adjustable comb tooth spacing designed by applicant.

Description

Technical Field

[0001] This utility model relates to the field of belt conveyor idler production equipment, specifically a mold for idlers used in coal mine belt conveyors. Background Technology

[0002] Comb rollers are designed to scrape away sticky materials adhering to the working surface of conveyor belts, ensuring continuous and efficient operation of belt conveyors. When designing comb rollers, the spacing of the comb teeth needs to be designed according to the characteristics of the materials being conveyed, such as viscosity, moisture content, and particle size, to achieve the ideal cleaning effect. However, most existing comb rollers have a fixed spacing structure (such as patent publication number CN205687066U). Due to the complex and variable nature of industrial production conveying tasks, the characteristics of the materials conveyed by belt conveyors also change frequently, leading to a decrease in the cleaning effect of the comb rollers.

[0003] To this end, the applicant designed a comb-shaped idler roller that can adjust the spacing between the comb teeth, such as... Figure 5 and Figure 6 As shown, the comb-shaped idler includes an idler cylinder 23 and multiple annular comb teeth 25 sleeved on the idler cylinder 23. An axial mounting groove 24 is formed on the surface of the idler cylinder 23. The inner annular surface of the comb teeth 25 is provided with mounting protrusions 26 that slide in conjunction with the mounting groove 24. A positioning mechanism 27 is provided on the side of the comb teeth 25 for pressing and fixing the comb teeth 25 onto the idler cylinder 23. When the comb tooth spacing needs to be adjusted, the locking function of the positioning mechanism is released, and the comb teeth are moved to the target position before being locked again by the positioning mechanism, thereby achieving the adjustment of the comb tooth spacing of the comb-shaped idler. Although this comb-shaped idler can quickly and easily adjust the comb tooth spacing according to actual working conditions, its unique structure makes it difficult to adapt well to existing idler production molds, resulting in low production efficiency. Utility Model Content

[0004] The present invention aims to provide a mold for idler rollers used in coal mine belt conveyors, in order to improve the low production efficiency of the comb-shaped idler rollers with adjustable tooth spacing designed by the applicant.

[0005] To solve the above technical problems, the specific solution adopted by this utility model is as follows: it includes an inner cylindrical mold, a middle cylindrical mold, and an outer cylindrical mold designed concentrically from the inside to the outside; a distance is left between the middle cylindrical mold and the outer cylindrical mold to form a comb tooth forming cavity; multiple slots are evenly distributed along the axial direction on the cylindrical wall of the outer cylindrical mold; partitions are inserted into the slots; the partitions are used to divide the comb tooth forming cavity into multiple independent chambers to form multiple comb teeth; fixed plates are provided at both ends of the outer cylindrical mold; the fixed plates at both ends of the outer cylindrical mold are connected to top molds for closing the ends of the mold cavity; a distance is left between the inner cylindrical mold and the middle cylindrical mold to form a roller forming cavity; the middle cylindrical mold is provided with several recesses extending along the axial direction; the recesses are used to form mounting grooves on the roller and mounting protrusions on the inner wall of the comb teeth.

[0006] As a further optimization of the idler roller mold for coal mine belt conveyors: the top mold includes an upper top mold and a lower top mold, and the lower top mold is equipped with an auxiliary mold disassembly mechanism.

[0007] As a further optimization of the idler roller mold for a coal mine belt conveyor: the auxiliary mold dismantling mechanism includes a first push plate and a second push plate on the inner surface of the lower top mold, and a first drive member and a second drive member on the outer surface of the lower top mold. The lower top mold has a first through hole through which the output shaft of the first drive member passes to connect to the first push plate, and a second through hole through which the output shaft of the second drive member passes to connect to the second push plate. The first push plate is used to push the comb teeth after forming, and the second push plate is used to push the idler roller after forming.

[0008] As a further optimization of the idler roller mold for a coal mine belt conveyor: the first driving component and the second driving component are fixed to the outer surface of the lower top mold by a mounting bracket, and both the first driving component and the second driving component are cylinders.

[0009] As a further optimization of the idler roller mold for a coal mine belt conveyor: the edges of the first push plate and the second push plate are flush with the side walls of the comb forming cavity and the idler roller forming cavity, respectively, during the pushing process.

[0010] As a further optimization of the idler roller mold for coal mine belt conveyors: the upper mold is provided with vent holes.

[0011] As a further optimization of the idler roller mold for coal mine belt conveyors: multiple recesses are evenly distributed along the circumferential direction on the upper edge of the middle layer cylinder mold.

[0012] As a further optimization of the idler roller mold for coal mine belt conveyors: the fixed plate is provided with positioning holes, and the surface of the top mold that contacts the fixed plate is provided with positioning pins that cooperate with the positioning holes.

[0013] As a further optimization of the idler roller mold for coal mine belt conveyors: the end of the partition plate away from the center of the mold cavity is provided with a traction handle, and the cross-section of the partition plate matches the cross-section of the comb forming cavity.

[0014] Beneficial Effects: This utility model, through the design of a concentric nested structure of an inner, middle, and outer cylindrical mold, combined with the recessed design of the middle cylindrical mold, enables the mold to simultaneously form the target idler roller and comb teeth in one operation. Simultaneously, the outer cylindrical mold, by inserting partitions, divides the comb tooth forming cavity into multiple independent chambers, thereby producing multiple independent comb teeth at once. This mold significantly improves production efficiency and solves the problem of low production efficiency in producing the applicant's adjustable comb tooth spacing comb-shaped idler roller.

[0015] This invention features an auxiliary demolding mechanism designed on the lower die, which allows the produced idler rollers and comb teeth to be automatically ejected from the die, avoiding the problem of low efficiency in manual demolding and further improving the production efficiency of comb-shaped idler rollers. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the mold for this utility model; Figure 2 This is a cross-sectional view of the mold of this utility model; Figure 3 This is a top view of the nested structure of the inner cylindrical mold, the middle cylindrical mold, and the outer cylindrical mold of this utility model; Figure 4 This is a top view of the partition of this utility model; Figure 5 A schematic diagram of a comb-shaped idler roller designed for the applicant, capable of adjusting the spacing between the comb teeth; Figure 6 A schematic diagram of the comb teeth of the comb-shaped idler roller; The markings in the diagram are: 1. Fixed plate, 2. Outer cylindrical mold, 3. Slot, 4. Auxiliary mold disassembly mechanism, 5. Top mold, 501. Upper top mold, 502. Lower top mold, 6. Vent hole, 7. Roller forming cavity, 8. Comb tooth forming cavity, 9. Positioning pin, 10. Positioning hole, 11. Second push plate, 12. First through hole, 13. Second through hole, 14. Second driving component, 15. First driving component, 16. Mounting bracket, 17. First push plate, 18. Inner cylindrical mold, 19. Middle cylindrical mold, 20. Recess, 21. Partition, 22. Traction handle, 23. Roller, 24. Mounting groove, 25. Comb tooth, 26. Mounting protrusion, 27. Positioning mechanism. Detailed Implementation

[0017] like Figure 1 and Figure 2As shown, a roller mold for a coal mine belt conveyor includes an inner cylindrical mold 18, a middle cylindrical mold 19, and an outer cylindrical mold 2. The inner cylindrical mold 18, the middle cylindrical mold 19, and the outer cylindrical mold 2 are concentrically nested from the inside to the outside. A distance is left between the inner cylindrical mold 18 and the middle cylindrical mold 19 to form a roller forming cavity 7. A distance is left between the middle cylindrical mold 19 and the outer cylindrical mold 2 to form a comb forming cavity 8. The inner cylindrical mold 18, as the innermost mandrel, defines the inner diameter of the roller cylinder 23. The outer cylindrical mold 2 defines the final outer diameter of the comb-shaped roller and the outer contour of the comb teeth 25.

[0018] like Figure 3 As shown, the middle layer mold 19 has recesses 20 extending in the axial direction. These recesses 20 form the mounting grooves 24 on the surface of the idler roller 23 and the mounting protrusions 26 on the inner ring of the comb teeth 25. The idler roller 23, the comb teeth 25, and the slidingly engaging mounting grooves 24 and protrusions 26 are completed simultaneously in a single production process, simplifying subsequent assembly and machining steps and improving production efficiency. Multiple recesses 20 are evenly distributed circumferentially on the middle layer mold 19. The idler roller 23 and comb teeth 25 produced by these multiple recesses have a more stable stress-bearing structure, improving the practicality of the comb-shaped idler roller. In this embodiment, there are a total of four recesses 20.

[0019] like Figure 4 As shown, multiple slots 3 are evenly distributed along the axial direction on the wall of the outer cylindrical mold. Partitions 21 are inserted into the slots 3, dividing the comb-forming cavity 8 into multiple independent chambers. Each independent chamber is filled with raw material to form multiple independent comb teeth 25, enabling the simultaneous production of multiple comb teeth 25 and further improving the production efficiency of the comb-shaped roller. A traction handle 22 is provided at the end of the partition 21 away from the center of the mold cavity. The traction handle 22 provides a safe and stable force point for inserting and removing the partition 21, improving the practicality of the mold. The cross-section of the partition 21 matches the cross-section of the comb-forming cavity 8; that is, the partition 21 has protrusions that match the recesses 20. When the partition 21 is inserted into the outer cylindrical mold 2, the protrusions and recesses 20 are locked together, ensuring that the partition 21 is stably supported in the comb-forming cavity 8. In this embodiment, there are a total of four partitions 21.

[0020] like Figure 2 As shown, both ends of the outer cylindrical mold 2 are provided with fixing plates 1. The fixing plates 1 at both ends of the outer cylindrical mold 2 are connected to top molds 5 for sealing the ends of the mold cavity. The top molds 5 and the three-layer cylindrical mold together form a sealed molding cavity to prevent material leakage from the mold ends and ensure the end face forming quality of the roller cylinder 23 and comb teeth 25. The fixing plates 1 are provided with positioning holes 10. The surface of the top mold 5 that contacts the fixing plates 1 is provided with positioning pins 9 that match the positioning holes 10. The fixing plates 1 are used to install and support the outer cylindrical mold 2. When the mold is closed, the positioning pins 9 are inserted into the positioning holes 10 on the fixing plates 1 to ensure that the top mold 5 and the cylindrical mold are precisely aligned.

[0021] The top mold 5 includes an upper top mold 501 and a lower top mold 502. The upper top mold 501 is provided with a vent 6, which is used to expel air from the cavity and prevent defects such as air bubbles and material shortages from forming in the product. The lower top mold 502 is provided with an auxiliary demolding mechanism 4, which can automatically eject the formed roller cylinder 23 and comb teeth 25, avoiding damage to the surface of the comb roller caused by using tools to knock the mold, thus reducing the product damage rate. At the same time, the rapid demolding action reduces manual operation, shortens the production cycle, and improves production efficiency.

[0022] The auxiliary mold disassembly mechanism 4 includes a first push plate 17 and a second push plate 11 located on the inner surface of the lower mold 502. The first push plate 17 and the second push plate 11 are in direct contact with the roller cylinder 23 or the comb teeth 25. The edges of the first push plate 17 and the second push plate 11 are flush with the side wall of the mold cavity during the pushing process, ensuring that the ejection force is evenly distributed and the ejection process is smooth.

[0023] The outer surface of the lower ejector mold 502 is provided with a first driving member 15 and a second driving member 14. The first driving member 15 and the second driving member 14 are fixed to the outer surface of the lower ejector mold 502 by a mounting bracket 16. The mounting bracket 16 provides a stable mounting base for the first driving member 15 and the second driving member 14. Both the first driving member 15 and the second driving member 14 are cylinders, and the cylinders can smoothly drive the push plate to move.

[0024] The lower die 502 has a first through hole 12 through which the output shaft of the first drive member 15 passes to connect to the first push plate 17, and a second through hole 13 through which the output shaft of the second drive member 14 passes to connect to the second push plate 11. The first push plate 17 is located in the comb tooth forming cavity 8 and is used to push the formed comb teeth 25. The second push plate 11 is located in the idler roller forming cavity 7 and is used to push the formed idler roller 23. When demolding is required after production, the first drive member 15 drives the first push plate 17 to smoothly push the formed comb teeth 25 out of the comb tooth forming cavity 8, and the second drive member 14 drives the second push plate 11 to smoothly push the formed idler roller 23 out of the idler roller forming cavity 7. The positioning mechanism 27 on the comb teeth 25 of the comb-shaped idler roller is a post-processing component.

[0025] The method of using the idler roller mold for a coal mine belt conveyor according to this utility model is as follows: First, the inner, middle and outer three-layer cylindrical molds are nested and assembled, and the bottom top mold 502 is closed; then, solid raw materials are introduced into the idler roller forming cavity 7 and the comb tooth forming cavity 8 from the unsealed upper top mold 501 installation point; when the injected raw materials fill each individual comb tooth 25 cavity, the corresponding partition 21 is inserted; when the raw materials fill the entire comb tooth forming cavity 8 and the idler roller forming cavity 7, the upper top mold 501 of the top 501 is closed to carry out the production operation; after production, the upper top mold 501 is opened, all partitions 21 are pulled out, and the auxiliary mold disassembly mechanism 4 on the lower top mold 502 is started to smoothly and completely eject the formed idler roller 23 and comb tooth 25 out of the mold.

Claims

1. A roller mold for a coal mine belt conveyor, characterized in that: It includes an inner cylindrical mold (18), a middle cylindrical mold (19), and an outer cylindrical mold (2) that are concentrically nested from the inside out. A gap is left between the middle cylindrical mold (19) and the outer cylindrical mold (2) to form a comb tooth forming cavity (8). Multiple slots (3) are evenly distributed along the axial direction on the cylindrical wall of the outer cylindrical mold (2). A partition (21) is inserted into the slot (3). The partition (21) is used to divide the comb tooth forming cavity (8) into multiple independent chambers to form multiple comb teeth (25). Fixed plates (1) are provided at both ends of the outer cylindrical mold (2). The fixed plates (1) at both ends of the outer cylindrical mold (2) are connected to a top mold (5) for closing the end of the mold cavity. A gap is left between the inner cylindrical mold (18) and the middle cylindrical mold (19) to form the roller forming cavity (7). The middle cylindrical mold (19) is provided with several recesses (20) extending in the axial direction. The recesses (20) are used to form mounting grooves (24) on the roller (23) and mounting protrusions (26) on the inner wall of the comb teeth (25).

2. The idler roller mold for a coal mine belt conveyor as described in claim 1, characterized in that: The top mold (5) includes an upper top mold (501) and a lower top mold (502), and the lower top mold (502) is provided with an auxiliary mold disassembly mechanism (4).

3. The idler roller mold for a coal mine belt conveyor as described in claim 2, characterized in that: The auxiliary demolding mechanism (4) includes a first push plate (17) and a second push plate (11) on the inner surface of the lower top mold (502), and a first drive member (15) and a second drive member (14) on the outer surface of the lower top mold (502). The lower top mold (502) has a first through hole (12) through which the output shaft of the first drive member (15) passes to connect the first push plate (17), and a second through hole (13) through which the output shaft of the second drive member (14) passes to connect the second push plate (11). The first push plate (17) is used to push the comb teeth (25) after molding, and the second push plate (11) is used to push the idler roller (23) after molding.

4. The idler roller mold for a coal mine belt conveyor as described in claim 3, characterized in that: The first driving component (15) and the second driving component (14) are fixed to the outer surface of the lower top mold (502) by the mounting bracket (16). Both the first driving component (15) and the second driving component (14) are cylinders.

5. The idler roller mold for a coal mine belt conveyor as described in claim 3, characterized in that: The edges of the first push plate (17) and the second push plate (11) are flush with the side walls of the comb forming cavity (8) and the roller forming cavity (7) respectively during the pushing process.

6. The idler roller mold for a coal mine belt conveyor as described in claim 2, characterized in that: The upper mold (501) has an exhaust hole (6).

7. The idler roller mold for a coal mine belt conveyor as described in claim 1, characterized in that: Multiple recesses (20) are evenly distributed along the circumferential direction on the upper edge of the middle cylindrical mold (19).

8. The idler roller mold for a coal mine belt conveyor as described in claim 1, characterized in that: The fixed plate (1) is provided with positioning holes (10), and the surface of the top mold (5) that contacts the fixed plate (1) is provided with positioning pins (9) that cooperate with the positioning holes (10).

9. The idler roller mold for a coal mine belt conveyor as described in claim 1, characterized in that: The end of the partition (21) away from the center of the mold cavity is provided with a traction handle (22), and the cross section of the partition (21) matches the cross section of the comb forming cavity (8).

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