A roller machine for mahjong machine production

Abstract

The application belongs to the technical field of mahjong machine accessories, and discloses a roller machine for mahjong machine production, which comprises a roller shaft and a rolling part connected with the roller shaft, an annular groove is formed in the side wall of the rolling part, a rolling sleeve body is arranged in the annular groove, a plurality of anti-skid protrusions are arranged on the inner wall of the annular groove, a plurality of accommodating holes corresponding to the anti-skid protrusions are formed in the side wall of the rolling sleeve body, and an auxiliary assembly for reducing the difficulty of workers in replacing the rolling sleeve body is arranged on the rolling part. The application has the effect of reducing the difficulty of workers in disassembling the rolling sleeve body.

Description

Technical Field

[0001] This utility model relates to the technical field of mahjong machine accessories, and in particular to a roller machine for mahjong machine production. Background Technology

[0002] The conveyor rollers are a crucial component of a mahjong machine's conveying mechanism. Mahjong tiles are picked up by suction rollers and fed onto the conveyor rollers, which then transport them to the tile-adding area, thus enabling the tile-adding function. However, existing conveyor rollers are generally made of rigid materials, which can easily slip between the conveyor rollers and the mahjong tiles during transport, affecting the machine's tile-adding efficiency. Furthermore, the rigid materials of the conveyor rollers can generate noise during contact with the mahjong machine.

[0003] Chinese utility model patent CN220609066U discloses a rubber-coated conveyor roller for a mahjong machine. It solves the technical problems of existing rollers affecting the efficiency of card-handling in mahjong machines. Located on one side of the shuffling wheel of the mahjong machine, the roller body includes a cylindrical rolling portion. At least one end of the rolling portion has a roller shaft. A ring-shaped groove extending from one end of the rolling portion to the other is provided on the outer circumference of the rolling portion. A rolling sleeve made of flexible material is fixed within the ring-shaped groove. The rolling sleeve has a constant-diameter cylindrical structure or a variable-diameter cylindrical structure, and a flexible rolling surface extending beyond the outer edge of the ring-shaped groove is formed on the outer circumference of the rolling sleeve. The advantages are: the rolling sleeve is fitted onto the outside of the rolling portion and fixed by anti-slip protrusions, preventing loosening and slippage between the rolling sleeve and the rolling portion after prolonged use, thus affecting normal use. Simultaneously, the rolling sleeve is made of TPU material, which has good elasticity, wear resistance, and corrosion resistance, improving the service life of the roller body and reducing production costs.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: the device drives the mahjong tiles to move by a rolling sleeve made of TPU material, and keeps the rolling sleeve stable by multiple anti-slip protrusions. In actual use, this method makes it difficult to replace the rolling sleeve, and cutting with external tools such as a cutting knife can easily cause the annular recess to be scratched, resulting in a poor user experience. Utility Model Content

[0005] To solve the above problems, this utility model provides a roller machine for mahjong machine production.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a roller machine for producing mahjong machines, comprising a roller shaft and a rolling part connected to the roller shaft, an annular groove is provided on the side wall of the rolling part, a rolling sleeve is provided in the annular groove, a plurality of anti-slip protrusions are provided on the inner wall of the annular groove, a plurality of receiving holes corresponding one-to-one with the anti-slip protrusions are provided on the side wall of the rolling sleeve, and an auxiliary component is provided on the rolling part to reduce the difficulty for workers to replace the rolling sleeve.

[0007] By adopting the above technical solution, when staff use the mahjong machine to shuffle the tiles, the suction roller inside the machine picks up the mahjong tiles and transports them to the conveyor roller, which then sends the tiles to the placement area, thus achieving the tile placement function. During this process, the roller shaft rotates continuously, causing the rolling part and the rolling sleeve to rotate synchronously. Because the rolling sleeve is made of TPU material, the static friction between the rolling sleeve and the mahjong tiles is relatively high, causing the mahjong tiles to move perpendicular to the roller shaft axis under the action of the rolling sleeve. After a period of use, the surface of the rolling sleeve is prone to wear, requiring staff to replace it. At this time, staff need to activate the drive device, which allows the cutting blade to cut the rolling sleeve, reducing the difficulty of tearing it in half and thus simplifying the replacement process.

[0008] Furthermore, a sliding groove is provided on the inner wall of the annular groove, and the auxiliary component includes a sliding block slidably disposed in the sliding groove. A placement groove is provided on the upper surface of the sliding block. The auxiliary component also includes a cutting blade installed in the placement groove and a driving device disposed on the rolling part for driving the sliding block. A receiving groove for accommodating the sliding block and the cutting blade is provided on the two opposite inner walls of the sliding groove.

[0009] By adopting the above technical solution, when the worker needs to replace the rolling sleeve, the worker needs to turn on the drive device, which will make the sliding block move along the extension direction of the sliding groove, and then make the cutting blade move with the sliding block, so that the upper end of the cutting blade cuts the inner wall of the rolling sleeve, thereby reducing the difficulty for the worker to split the rolling sleeve into two halves, and thus reducing the difficulty for the worker to remove the irregularly shaped rolling sleeve.

[0010] Furthermore, a threaded hole is provided on the side wall of the sliding block, and a fixing bolt for fixing the cutting blade is threadedly connected to the inner wall of the threaded hole.

[0011] By adopting the above technical solution, when the worker needs to install the cutting blade, the worker needs to connect the bottom of the cutting blade with the mounting groove and connect the fixing bolt with the threaded hole, so that the fixing bolt can press against the cutting blade, thereby keeping the cutting blade stable.

[0012] Furthermore, the driving device includes a connecting rope with one end fixed to one side wall of the sliding block and an elastic rope with one end fixed to the other side wall of the sliding block. The other end of the connecting rope extends to the outside of the rolling part and is slidably connected, and the other end of the elastic rope extends to the outside of the rolling part and is slidably connected.

[0013] Furthermore, a limit ring is fixed to the ends of the elastic rope and the connecting rope that are far apart from each other.

[0014] By adopting the above technical solution, when the sliding block is not subjected to external force, it presses against the inner wall of one of the receiving slots under the action of the elastic rope. When the operator needs to drive the cutting blade, they need to pull the limiting ring connected to the connecting rope, which will cause the sliding block to move away from the other limiting ring under the action of the connecting rope. This allows the cutting blade to follow the sliding block and cut the inner wall of the rolling sleeve, thus reducing the difficulty for the operator to tear open the rolling sleeve later. After the cutting is completed, the operator only needs to release the limiting ring, and the sliding block will automatically return to its original position under the action of the elastic rope, thereby improving the user experience.

[0015] Furthermore, drive grooves for accommodating the limiting ring are provided on both opposite sidewalls of the rolling part.

[0016] Furthermore, the distance between the top of the cutting blade and the upper surface of the rolling sleeve is 0.5 mm.

[0017] By adopting the above technical solution, when the cutting blade cuts the rolling sleeve, the rolling sleeve is not completely divided into two halves because there is a gap between the top of the cutting blade and the upper surface of the rolling sleeve. This reduces the probability of workers being cut by the cutting blade and improves the user experience.

[0018] Furthermore, both drive slots are provided with cover plates for sealing the drive slots.

[0019] In summary, this utility model has the following beneficial effects: 1. In this application, when a worker uses a mahjong machine to shuffle the tiles, the suction roller inside the machine picks up the mahjong tiles and transports them to the conveyor roller, which then sends the tiles to the placement area, thus achieving the placement function. During this process, the roller shaft rotates continuously, causing the rolling part and the rolling sleeve to rotate synchronously. Because the rolling sleeve is made of TPU material, the static friction between the rolling sleeve and the mahjong tiles is relatively large, causing the mahjong tiles to move in the direction perpendicular to the roller shaft axis under the action of the rolling sleeve. After a period of use, the surface of the rolling sleeve is prone to wear, requiring the worker to replace it. At this time, the worker needs to activate the drive device, which allows the cutting blade to cut the rolling sleeve, reducing the difficulty of tearing the rolling sleeve in half and thus reducing the difficulty of replacing the rolling sleeve. 2. In this application, when the worker needs to replace the rolling sleeve, the worker needs to turn on the drive device, which will cause the sliding block to move along the extension direction of the sliding groove, and then the cutting blade will move with the sliding block, so that the upper end of the cutting blade will cut the inner wall of the rolling sleeve, thereby reducing the difficulty for the worker to divide the rolling sleeve into two halves, and thus reducing the difficulty for the worker to remove the irregularly shaped rolling sleeve. 3. In this application, when the sliding block is not subjected to external force, it presses against the inner wall of one of the receiving grooves under the action of the elastic rope. When the operator needs to drive the cutting blade, the operator needs to pull the limiting ring connected to the connecting rope, which will cause the sliding block to move away from the other limiting ring under the action of the connecting rope. This will cause the cutting blade to move with the sliding block and cut the inner wall of the rolling sleeve, thereby reducing the difficulty for the operator to tear open the rolling sleeve later. After the cutting is completed, the operator only needs to release the limiting ring, which will cause the sliding block to automatically reset under the action of the elastic rope, thereby improving the user experience. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the cover plate and its connection structure according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the driving device and its connection structure according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the mounting groove and its connection structure according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the receiving hole and its connection structure according to an embodiment of the present utility model.

[0021] In the diagram: 1. Roller shaft; 11. Rolling part; 2. Annular groove; 21. Rolling sleeve body; 3. Anti-slip protrusion; 31. Receiving hole; 32. Sliding groove; 4. Auxiliary component; 41. Sliding block; 411. Placement groove; 42. Cutting blade; 43. Receiving groove; 5. Drive device; 51. Connecting rope; 52. Elastic rope; 6. Threaded hole; 61. Fixing bolt; 7. Limiting ring; 71. Drive groove; 8. Cover plate. Detailed Implementation

[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0023] like Figure 1-5 As shown in the illustration, this application discloses a roller machine for producing mahjong machines, including a roller shaft 1, a rolling part 11, a rolling sleeve 21, anti-slip protrusions 3, auxiliary components 4, a limiting ring 7, and a cover plate 8. The rolling part 11 is connected to the roller shaft 1, and an annular groove 2 is formed on the side wall of the rolling part 11. The rolling sleeve 21 is disposed in the annular groove 2. Multiple anti-slip protrusions 3 are provided and sequentially disposed on the inner wall of the annular groove 2. Multiple receiving holes 31 corresponding to the anti-slip protrusions 3 are formed on the side wall of the rolling sleeve 21.

[0024] A sliding groove 32 is formed on the inner wall of the annular groove 2. An auxiliary component 4 is set on the rolling part 11 to reduce the difficulty for workers to replace the rolling sleeve 21. The auxiliary component 4 includes a sliding block 41, a cutting blade 42, and a driving device 5. The sliding block 41 is a block structure and is slidably set in the sliding groove 32. A placement groove 411 is formed on the upper surface of the sliding block 41, and the cutting blade 42 is installed in the placement groove 411. The two inner walls of the sliding groove 32 opposite to each other are provided with receiving grooves 43 for accommodating the sliding block 41 and the cutting blade 42.

[0025] When the worker needs to replace the rolling sleeve 21, the worker needs to turn on the drive device 5, which will cause the sliding block 41 to move along the extension direction of the sliding groove 32, and then the cutting blade 42 will move with the sliding block 41, so that the upper end of the cutting blade 42 will cut the inner wall of the rolling sleeve 21, thereby reducing the difficulty for the worker to split the rolling sleeve 21 into two halves, and thus reducing the difficulty for the worker to remove the irregularly shaped rolling sleeve 21.

[0026] A driving device 5 is mounted on the rolling part 11 and is used to drive the sliding block 41. The driving device 5 includes a connecting rope 51 and an elastic rope 52. One end of the connecting rope 51 is fixed to the side wall of one side of the sliding block 41, and the other end of the connecting rope 51 extends to the outside of the rolling part 11 and is slidably connected. One end of the elastic rope 52 is fixed to the side wall of the other side of the sliding block 41, and the other end of the elastic rope 52 extends to the outside of the rolling part 11 and is slidably connected. The limiting ring 7 is a square annular block structure. Two limiting rings 7 are provided and are respectively fixed to the ends of the elastic rope 52 and the connecting rope 51 that are far apart from each other.

[0027] When the sliding block 41 is not subjected to external force, it presses against the inner wall of one of the receiving grooves 43 under the action of the elastic rope 52. When the operator needs to drive the cutting blade 42, the operator needs to pull the limiting ring 7 connected to the connecting rope 51, which will cause the sliding block 41 to move away from the other limiting ring 7 under the action of the connecting rope 51. This will cause the cutting blade 42 to move with the sliding block 41 and cut the inner wall of the rolling sleeve 21, thereby reducing the difficulty for the operator to tear open the rolling sleeve 21 afterward. After the cutting is completed, the operator only needs to release the limiting ring 7, which will cause the sliding block 41 to automatically reset under the action of the elastic rope 52, thereby improving the user experience.

[0028] A threaded hole 6 is provided on the side wall of the sliding block 41, and a fixing bolt 61 is threaded onto the inner wall of the threaded hole 6 to fix the cutting blade 42.

[0029] When the operator needs to install the cutting blade 42, the operator needs to connect the bottom of the cutting blade 42 with the mounting groove 411 and connect the fixing bolt 61 with the threaded hole 6 so that the fixing bolt 61 can press against the cutting blade 42, thereby keeping the cutting blade 42 stable.

[0030] The rolling part 11 has drive grooves 71 on its two opposite side walls to accommodate the limiting ring 7. The distance between the top of the cutting blade 42 and the upper surface of the rolling sleeve 21 is 0.5 mm. When the cutting blade 42 cuts the rolling sleeve 21, the rolling sleeve 21 is not completely divided into two halves because there is a gap between the top of the cutting blade 42 and the upper surface of the rolling sleeve 21. This reduces the probability of workers being cut by the cutting blade 42 and improves the user experience.

[0031] In order to extend the service life of the roller shaft 1, a cover plate 8 for sealing the drive groove 71 is provided in both drive grooves 71.

[0032] The operating principle of the roller machine for mahjong machine production in this embodiment is as follows: When the operator uses the mahjong machine to shuffle the tiles, the suction roller inside the machine picks up the mahjong tiles and transports them to the conveyor roller. The conveyor roller then delivers the tiles to the placement area, thus achieving the tile placement function. During this process, the roller shaft 1 rotates continuously, causing the rolling part 11 and the rolling sleeve 21 to rotate synchronously. Because the rolling sleeve 21 is made of TPU material, the static friction between the rolling sleeve 21 and the mahjong tiles is relatively large, causing the mahjong tiles to move perpendicular to the axis of the roller shaft 1 under the action of the rolling sleeve 21. After a period of use, the surface of the rolling sleeve 21 is prone to wear, requiring the operator to replace it. At this time, the operator needs to activate the drive device 5, which allows the cutting blade 42 to cut the rolling sleeve 21, reducing the difficulty of tearing the rolling sleeve 21 in half and thus reducing the difficulty of replacing it.

[0033] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected by this utility model. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A roller machine for producing mahjong machines, comprising a roller shaft (1) and a rolling part (11) interconnected with the roller shaft (1), characterized in that: The rolling part (11) has an annular groove (2) on its side wall, and a rolling sleeve (21) is provided inside the annular groove (2). Multiple anti-slip protrusions (3) are provided on the inner wall of the annular groove (2). Multiple receiving holes (31) corresponding to the anti-slip protrusions (3) are provided on the side wall of the rolling sleeve (21). The rolling part (11) is provided with an auxiliary component (4) to reduce the difficulty for workers to replace the rolling sleeve (21).

2. The roller machine for producing mahjong machines according to claim 1, characterized in that: The inner wall of the annular groove (2) is provided with a sliding groove (32). The auxiliary component (4) includes a sliding block (41) slidably disposed in the sliding groove (32). The upper surface of the sliding block (41) is provided with a placement groove (411). The auxiliary component (4) also includes a cutting blade (42) installed in the placement groove (411) and a driving device (5) disposed on the rolling part (11) for driving the sliding block (41). The two inner walls opposite to each other of the sliding groove (32) are provided with receiving grooves (43) for accommodating the sliding block (41) and the cutting blade (42).

3. The roller machine for producing mahjong machines according to claim 2, characterized in that: The sliding block (41) has a threaded hole (6) on its side wall, and a fixing bolt (61) for fixing the cutting blade (42) is threadedly connected to the inner wall of the threaded hole (6).

4. The roller machine for producing mahjong machines according to claim 3, characterized in that: The drive device (5) includes a connecting rope (51) with one end fixed to one side wall of the sliding block (41) and an elastic rope (52) with one end fixed to the other side wall of the sliding block (41). The other end of the connecting rope (51) extends to the outside of the rolling part (11) and is slidably connected. The other end of the elastic rope (52) extends to the outside of the rolling part (11) and is slidably connected.

5. A roller machine for producing mahjong machines according to claim 4, characterized in that: Limiting rings (7) are fixed at the ends of the elastic rope (52) and the connecting rope (51) that are far apart from each other.

6. A roller machine for producing mahjong machines according to claim 5, characterized in that: The rolling part (11) has drive grooves (71) on its two opposite side walls for accommodating the limiting ring (7).

7. A roller machine for producing mahjong machines according to claim 6, characterized in that: The distance between the top of the cutting blade (42) and the upper surface of the rolling sleeve (21) is 0.5 mm.

8. A roller machine for producing mahjong machines according to claim 7, characterized in that: Both drive slots (71) are provided with cover plates (8) for closing the drive slots (71).

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