TWM623296U - Improved rotary disc of centrifugal sandblasting machine - Google Patents

Abstract

This creation relates to the improvement of a rotary table of a centrifugal sandblasting machine, which at least includes: an impeller and a plurality of blades, a plurality of annularly arranged trapezoidal chutes are arranged on the front side of the impeller, and each end of the chutes has a A slot, the center of the front side of the impeller is concave with a space, the concave space is communicated with the chute and the slot, the end of the blade has at least one trapezoidal slider, and the front end of the slider is protruding There is a clamping block, the sliding block and the clamping block of the blades can be respectively slidably embedded in the chute and the clamping groove of the impeller, so that the blades can be combined or separated from the impeller from the recessed space of the impeller, Thereby, an improved structure of the turntable is provided which is convenient for maintenance and blade replacement.

Description

Improvement of Turntable of Centrifugal Sandblasting Machine

This creation is about a turntable, especially an improved structure of the turntable that is specially used for centrifugal sandblasting machines and is easy to replace.

When various parts and components are manufactured and formed (such as plastic or metal processing and forming), burrs or burrs will inevitably be formed on the surface or corners of the workpiece, so the surface of the workpiece will be ground to remove such burrs or burrs.

It is reported that in order to improve productivity, the industry generally uses a sandblasting machine to process the surface of the workpiece instead of grinding, so as to quickly remove the burr of the workpiece. A processing method on the surface of the workpiece (namely, the bead blasting method), the sandblasting machine can be roughly divided into air-jet and centrifugal types according to the different ways of blasting the sand.

The air jet type is mainly powered by compressed air, and supplies sand at the air outlet, and uses the compressed air to take out the sand and process the workpiece, but the uniformity is poor; the centrifugal type uses a turntable to drive the sand , Using the centrifugal force generated by high-speed rotation, the sand material is thrown out and sprayed on the workpiece. Because the speed of the sand material is controlled by the rotation speed, it has better stability and uniformity.

More specifically, the conventional centrifugal sandblasting machine has at least a casing S and a driving device (not shown in the figure), the casing S is provided with a turntable P and a drum C, and the driving device is connected to Controlling the rotation of the turntable P, the casing S has a feeding port I outside, and the feeding port I is connected to the A turntable P (as shown in Figure 1), the roller C is used for placing workpieces, the turntable P has two disc bodies P1, P2, and the two corresponding surfaces of the disc bodies P1, P2 are provided with a plurality of annular The provided T-shaped groove G has a plurality of pillars M fastened between the two disk bodies P1 and P2, so that the disk bodies P1 and P2 are fixed and corresponding to each other, and the grooves G are interlaced with the pillars M. A blade B is sandwiched between the corresponding grooves G between the disc bodies P1 and P2, and a T-shaped projection B1 is provided on both sides of the blade B, so that the blades B can be respectively engaged Fixed on the T-shaped grooves G of the disk bodies P1 and P2 (as shown in Figures 2 and 3);

When the turntable P rotates at a high speed and pours and supplies the sand material at the feeding port, the turntable P will drive the sand material, and the blades B will centrifugally throw the sand material out, hitting the workpiece contained in the drum C. , to provide grinding and other processing treatments on the surface of the workpiece; in the process of centrifugally throwing out the sand material by the high-speed rotation of the rotary table P of the centrifugal sandblasting machine, it is also tied to the high-speed impact with the sand material, so the pillars M of the rotary table P and these The blade B will cause wear and tear. When the blade B is damaged, it needs to be replaced, and when the support M is damaged, the turntable P needs to be replaced.

When the blade B is to be disassembled and replaced, the blade B cannot be easily removed (as shown in Figures 1 to 3) because it will be blocked by the pillars M. Therefore, the turntable P must be removed from the casing S first. down, in order to push the blade B into the interior of the turntable P, so that the protrusion B1 of the blade B is separated from the groove G of the disk bodies P1 and P2, and then the blade B is taken out for replacement. When the blade B is replaced , it is also necessary to assemble the turntable P back into the casing S, so that the processing can be continued, so there is much inconvenience in maintenance operations.

Therefore, how to provide a centrifugal sandblasting machine turntable structure or device that is convenient for maintenance and blade replacement is the direction that the creator of this creation is eager to research and improve.

Therefore, in view of the above-mentioned deficiencies, the creator of this creation has collected relevant information, evaluated and considered it from various parties, and based on the accumulated experience in this industry for many years, through continuous trial production and Modification, the first to design such a new type of patent.

The main purpose of this creation is to provide an improvement on the turntable of a centrifugal sandblasting machine, which has an impeller and a plurality of blades. The front side of the blade is provided with a plurality of annularly arranged trapezoidal chutes, and the ends of the chutes are provided with A clamping slot, a space is concavely formed in the center of the front side of the impeller, the space is communicated with each chute, the end of the blade is provided with a trapezoidal slider, and the front end of the trapezoidal slider is provided with a clamping block, the The sliding block and the clamping block of the equal-blade can be respectively slid into the chute and the clamping groove of the impeller from the recessed space. Because the impeller does not have a pillar, it will not be damaged as in the conventional structure, and the turntable needs to be replaced. When the blade is damaged, the blade can be directly taken out from the concave space, thereby providing an improved structure of the centrifugal sandblasting machine turntable which is convenient for maintenance and blade replacement.

In order to achieve the above-mentioned purpose, the present invention provides a rotary table improvement of a centrifugal sandblasting machine, which can be installed on the drive shaft or transmission shaft of a centrifugal sandblasting machine. The rotary table improvement system at least includes: an impeller, and the impeller system is a Disc-shaped, the front side of the impeller is provided with a plurality of annularly arranged trapezoidal chutes, each end of the chutes has a slot, the center of the front side of the impeller is concave with a space, the space is connected with each The chute and the clamping groove are communicated, and the shaft center of the impeller is provided with a shaft seat, the shaft seat has at least one keyway, and the shaft seat and the keyway are used for the drive shaft or transmission shaft of the centrifugal sandblasting machine and a plurality of blades, the end of the blade has at least a trapezoidal slider, the front end of the slider is protruding with a clamping block, and the slider of the blade can be slidably arranged in the chute of the impeller. , the clamping block is correspondingly embedded in the clamping groove of the sliding groove, so that the blades are slidably embedded in the sliding grooves and the clamping grooves of the impeller from the recessed space.

[Prior Art]

B: blade

B1: bump

C: Roller

G: Groove

I: feed port

M: pillar

P: Turntable

P1, P2: disc body

S: Chassis

[This creation]

10: Impeller

11: Space

12: Chute

13: Card slot

14: Axle seat

141: Keyway

20: Blades

21: Slider

22: Card block

A: Drive shaft/transmission shaft

Figure 1 is a schematic structural diagram of a conventional centrifugal sandblasting machine;

Figure 2 is a schematic diagram of the rotary table structure of a conventional centrifugal sandblasting machine;

Figure 3 is a schematic exploded view of the rotary table structure of a conventional centrifugal sandblasting machine;

Figure 4 is a schematic diagram of the structure of the improved rotary table of the centrifugal sandblasting machine;

Figure 5 is a schematic diagram of the assembly and disassembly of the improved rotary table of the centrifugal sandblasting machine;

Figure 6 is a schematic diagram of the implementation of the improvement of the rotary table of the centrifugal sandblasting machine;

FIG. 7 is a schematic cross-sectional view of FIG. 6 .

In order to achieve the above or other purposes and effects, the technical means and structures used in this creation are hereby described in detail with regard to the preferred embodiment of this creation, and its features and functions are as follows, so that you can fully understand.

Please refer to Figures 4 to 6. Figure 4 is a schematic diagram of the structure of the improved rotary table of the centrifugal sandblasting machine; Figure 5 is the assembly and disassembly schematic diagram of the improved rotary table of the centrifugal sandblasting machine; Figure 6 is a schematic diagram of A schematic diagram of the implementation of the improvement of the rotary table of the centrifugal sandblasting machine in this creation; Figure 7 is a schematic cross-sectional view of Figure 6.

As shown in these figures, the present invention provides a rotary table improvement of a centrifugal sandblasting machine, which is arranged on a drive shaft or a transmission shaft A of a centrifugal sandblasting machine. The rotary table improvement system at least includes: an impeller 10 and a plurality of The blades 20, the impeller 10 is in the shape of a disc, the center of the front side of the impeller 10 is recessed with a space 11 (as shown in Figure 4), the blades 20 can be slidably inserted from the recessed space 11 On the front side of the impeller 10 , the blades 20 are easily assembled or separated from the impeller 10 .

More specifically, the front side of the impeller 10 is provided with a plurality of trapezoidal chutes 12 arranged in a ring shape, the end of each chutes 12 is provided with a clamping groove 13, and the front side of the impeller 10 is provided with a concave space 11 is communicated with the sliding grooves 12 and the clamping grooves 13. The end of the blade 20 has at least a trapezoidal sliding block 21. The front end of the sliding block 21 is protruded with a clamping block 22. The sliding block 21 is It can be slidably installed in the chute 12 of the impeller 10, so that the blade 20 is axially fixed to the impeller 10, and the clamping block 22 is further engaged with the clamping groove 13 of the chute 12 (such as the fifth shown in the figure);

Furthermore, a shaft seat 14 is disposed at the shaft center of the impeller 10 , and the shaft seat 14 has at least one keyway 141 (as shown in FIG. 5 ). The impeller 10 is connected with the drive shaft or transmission shaft A of the centrifugal sandblasting machine (as shown in Figs. 6 and 7 ) to drive and control the rotation and rotation speed of the impeller 10 .

When the impeller 10 rotates, the impeller 10 drives the blades 20 to rotate, because the clamping blocks 22 of the blades 20 are respectively clamped and fitted on the clamping grooves 13 (as shown in Figs. 6 and 7). Therefore, the blades 20 can be stably installed on the impeller 10, so that the blades 20 will not be thrown out and separated from the impeller 10 by the centrifugal force during rotation, and can drive the sand provided by the feeding port to displace the sand. The centrifugal throws out the workpiece placed in the impact drum, and provides a processing treatment to the surface of the workpiece.

When the vane 20 is damaged and needs to be replaced, the vane 20 only needs to be pushed in toward the center of the impeller 10 to make the vane 20 slide out of the chute 12 of the impeller 10 , and can easily get out of the concave hole in the center of the impeller 10 . Set the space 11 to take out the blade 20, and then slide the new blade 20 into the chute 12, without removing the entire turntable from the casing, the blade 20 can be easily replaced, and because the impeller 10 of the present creation The structure does not have pillars, so there is no need to replace the impeller 10 due to the damage of the pillars, so the purpose of convenient maintenance of the rotary table of the centrifugal sandblasting machine is achieved, and an improved structure of the rotary table for convenient replacement of the blades 20 is provided.

However, the above descriptions are only the preferred embodiments of this creation, which limit the scope of the patent of this creation. Therefore, all simple modifications made by using the contents of the description and drawings of this creation are mentioned. and equivalent structural changes shall be similarly included within the scope of the patent of this creation, and shall be clearly stated.

10: Impeller

11: Space

12: Chute

14: Axle seat

141: Keyway

20: Blades

21: Slider

Claims (1)

A turntable improvement of a centrifugal sandblasting machine can be arranged on a drive shaft or a transmission shaft of a centrifugal sandblasting machine, and the turntable improvement system at least comprises: An impeller, the impeller is in the shape of a disc, the front side of the impeller is provided with a plurality of annularly arranged trapezoidal chutes, the end of each chutes is provided with a clamping groove, and the center of the front side of the impeller is concave There is a space, the space is communicated with each chute and the clamping groove, and the shaft center of the impeller is provided with a shaft seat, the shaft seat has at least one keyway, and the shaft seat and the keyway are used for the centrifugal type. connected to the drive shaft or drive shaft of the blasting machine; and, A plurality of blades, the end of the blade has at least a trapezoidal slider, the front end of the slider is protruded with a block, the slider of the blade can be slidably installed in the chute of the impeller, the block is The blades are correspondingly embedded in the clamping grooves of the chute, so that the blades are slidably embedded in the sliding grooves and the clamping grooves of the impeller from the recessed space.

Images