Shot distributing device for shot blasting machine

Abstract

The utility model relates to the technical field of shot blasting machines, in particular to a shot distributing device for a shot blasting machine, which comprises a rack, a screen drum obliquely and rotatably connected onto the rack, a driving component used for driving the screen drum to rotate, and a funnel arranged close to the highest position of the screen drum, the screening drum is arranged on the machine frame, the shot guiding groove and the impurity guiding groove are obliquely formed below the screening drum, a plurality of screening holes are formed in the screening drum, the screening holes are formed right above the impurity guiding groove, the shot guiding groove is arranged close to the bottommost end of the screening drum, the funnel is fixed on the machine frame, and the bottom end of the funnel extends into the screening drum; according to the utility model, the condition that the metal screen is easily blocked by metal scraps can be effectively avoided, the separation speed of the metal scraps and steel shots is ensured, and the separation effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of shot blasting machines, in particular to a shot dividing device for a shot blasting machine. Background Art

[0002] A shot blasting machine uses a shot blasting device to throw steel sand or steel shot at a high speed onto the surface of a workpiece, so that the surface of the workpiece reaches a certain roughness to make the workpiece more beautiful, or changes the surface stress of the workpiece, improves the strength of the workpiece and thus extends the service life of the workpiece. The shot needs to be recycled after use. The existing shot blasting machine recycles the shot by using the air separation principle. However, it is difficult to separate the metal chips peeled off from the surface of the workpiece by this recycling method. The separation effect on the shot material containing metal chips is poor and the separation is not thorough. Therefore, a Chinese patent with the authorized announcement number CN211517180U discloses a shot separating type shot blasting machine, which includes a machine body. Inside the machine body, a workpiece support is provided. The workpiece support is connected to an external driving motor through a rotating shaft. A first shot blasting device and a second shot blasting device are arranged at the relative positions of the side wall of the machine body and the workpiece support. An outlet is arranged on the lower side wall of the machine body, and a shot outlet is arranged at the bottom of the machine body. The lower part of the workpiece support is successively provided with a sieve plate and a guide plate which are inclined relative to each other from top to bottom. A vibration motor is arranged at the bottom of the sieve plate and the guide plate. Through this technical solution, the shot material falling on the sieve plate and the guide plate can be screened and separated. The smaller shot can quickly fall through the mesh holes on the sieve plate and the guide plate, while the larger metal chips are blocked by the sieve mesh and fall through the opening groove on the lower side of the sieve plate position, and finally are discharged through the guide plate from the outlet. Through multi-layer screening, the separation of the shot material is more thorough.

[0003] However, in practical applications, the above device still has the following deficiencies: The metal sieve mesh in the above device is easily blocked by metal chips, which not only affects the separation speed of the metal chips and the steel shot, but also affects the separation effect of the metal chips and the steel shot. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a shot dividing device for a shot blasting machine aiming at the above deficiencies, which can effectively avoid the situation that the metal sieve mesh is easily blocked by metal chips, ensure the separation speed of the metal chips and the steel shot, and has a better separation effect.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A shot separation device for a shot blasting machine, comprising a frame, a sieve cylinder that is inclined and rotatably connected to the frame, a drive assembly for driving the rotation of the sieve cylinder, a funnel disposed near the highest point of the sieve cylinder, and a shot guide groove and a impurity guide groove that are inclined and disposed below the sieve cylinder. A plurality of sieve holes are provided on the sieve cylinder, and the sieve holes are disposed directly above the impurity guide groove. The shot guide groove is disposed near the bottom end of the sieve cylinder. The funnel is fixed to the frame, and the bottom end of the funnel extends into the sieve cylinder.

[0007] Further, bearings are symmetrically arranged on the front and rear of the frame, the sieve cylinder is fixed on the inner ring of the bearings, and a support frame is arranged inside the sieve cylinder, and the support frame is disposed near the bottom end of the sieve cylinder; the drive assembly includes a motor fixed on the frame, a speed reducer is drivingly connected to the output shaft of the motor, and the output end of the speed reducer is drivingly connected to the support frame.

[0008] Further, the bottom ends of the shot guide groove and the impurity guide groove are staggeredly arranged.

[0009] Further, baffles are respectively arranged on the front and rear sides of the sieve cylinder.

[0010] Further, it further includes a anti-falling ring fixed near the end of the sieve cylinder, and the bottom end of the funnel passes through the anti-falling ring and extends into the sieve cylinder.

[0011] The beneficial effects of the present utility model are as follows:

[0012] In practical applications, when in use, the shot blasting machine pours the mixture of metal debris and steel shots into the funnel. The mixture of metal debris and steel shots enters the sieve cylinder through the funnel. During the rolling of the steel shots along the sieve cylinder, the sieve cylinder is driven to rotate by the drive assembly to prevent the metal debris from blocking. The metal debris passes through the sieve holes and falls into the impurity guide groove, and the steel shots roll to the shot guide groove along the end of the sieve cylinder; the present utility model can effectively avoid the situation that the metal screen is easily blocked by metal debris, ensure the separation speed of the metal debris and the steel shots, and has a better separation effect. Description of the Drawings

[0013] Figure 1 is the overall structural schematic diagram of the present utility model;

[0014] Figure 2 is the top view of the present utility model;

[0015] Figure 3 is Figure 2 the sectional view at A-A in

[0016] Figure 4 is Figure 2 the sectional view at B-B in

[0017] Reference numerals: sieve cylinder 1; sieve holes 11; support frame 12; anti-falling ring 13; funnel 2; pill guide groove 3; impurity guide groove 4; bearing 5; motor 61; reducer 62; baffle 7. Detailed implementation mode

[0018] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, a pill separating device for a shot blasting machine, comprising a frame, a sieve cylinder 1 which is inclined and rotatably connected to the frame, a driving assembly for driving the sieve cylinder 1 to rotate, a funnel 2 arranged near the highest position of the sieve cylinder 1, and a pill guide groove 3 and an impurity guide groove 4 which are inclined and arranged below the sieve cylinder 1. A plurality of sieve holes 11 are arranged on the sieve cylinder 1, and the sieve holes 11 are arranged directly above the impurity guide groove 4. The pill guide groove 3 is arranged near the lowermost end of the sieve cylinder 1. The funnel 2 is fixed on the frame, and the bottom end of the funnel 2 extends into the sieve cylinder 1.

[0019] During use, the shot blasting machine pours the mixture of metal debris and steel shots into the funnel 2. The mixture of metal debris and steel shots enters the sieve cylinder 1 through the funnel 2. During the rolling of the steel shots along the sieve cylinder 1, the sieve cylinder 1 is driven to rotate by the driving assembly to prevent the metal debris from blocking. The metal debris passes through the sieve holes 11 and falls into the impurity guide groove 4, and the steel shots roll to the end of the sieve cylinder 1 and fall into the pill guide groove 3. The utility model can effectively avoid the situation that the metal sieve is easily blocked by metal debris, ensures the separation speed of metal debris and steel shots, and has a better separation effect.

[0020] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, bearings 5 are symmetrically arranged on the front and rear of the frame, the sieve cylinder 1 is fixed on the inner ring of the bearings 5, and a support frame 12 is arranged in the sieve cylinder 1. The support frame 12 is arranged near the lowermost end of the sieve cylinder 1. The driving assembly includes a motor 61 fixed on the frame. The output shaft of the motor 61 is drivingly connected with a reducer 62, and the output end of the reducer 62 is drivingly connected with the support frame 12. In this embodiment, the motor 61 drives the support frame 12 to drive the sieve cylinder 1 to rotate after deceleration by the reducer 62, so that the metal debris and steel shots are sieved while rolling in the sieve cylinder 1, effectively avoiding the situation that the metal sieve is easily blocked by metal debris.

[0021] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, the lowermost ends of the pill guide groove 3 and the impurity guide groove 4 are arranged staggeredly. In this embodiment, when the lowermost ends of the pill guide groove 3 and the impurity guide groove 4 are arranged staggeredly, it is easier to collect the steel shots and metal debris.

[0022] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, baffles 7 are respectively arranged on the front and rear sides of the sieve cylinder 1; in this embodiment, the baffles 7 can effectively prevent the sieve cylinder 1 from throwing out metal debris from the machine frame during rotation.

[0023] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, it further includes a falling prevention ring 13 fixed near the end of the sieve cylinder 1, and the bottom end of the funnel 2 passes through the falling prevention ring 13 and extends into the sieve cylinder 1; in this embodiment, the falling prevention ring 13 can prevent steel shots and metal debris from being thrown out from the end of the sieve cylinder 1.

[0024] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the scope defined by the spirit of the present invention.

Claims

1. A shot dividing device for a shot blasting machine, characterized in that: The invention comprises a frame, a screen drum (1) connected to the frame in an inclined and rotatable manner, a driving assembly used to drive the screen drum (1) to rotate, a funnel (2) arranged near the highest point of the screen drum (1), and a ball guide groove (3) and a debris guide groove (4) arranged obliquely below the screen drum (1); a plurality of screen holes (11) are arranged on the screen drum (1); the screen holes (11) are arranged directly above the debris guide groove (4); the ball guide groove (3) is arranged near the bottom of the screen drum (1); the funnel (2) is fixed to the frame; and the bottom end of the funnel (2) extends into the screen drum (1).

2. A shot dividing device for a shot blasting machine according to claim 1, characterized in that: The frame is symmetrically provided with bearings (5) at the front and rear ends, the screen drum (1) is fixed on the inner ring of the bearing (5), a support frame (12) is provided inside the screen drum (1), and the support frame (12) is arranged close to the bottom end of the screen drum (1); the driving component comprises a motor (61) fixed to the frame, a reducer (62) is drivingly connected to the output shaft of the motor (61), and the output end of the reducer (62) is drivingly connected to the support frame (12).

3. A shot dividing device for a shot blasting machine according to claim 1, characterized in that: The bottom ends of the ball guiding groove (3) and the debris guiding groove (4) are staggered.

4. A shot dividing device for a shot blasting machine according to claim 1, characterized in that: Baffles (7) are respectively provided on the front and rear sides of the screen drum (1).

5. The shot dividing device for a shot blasting machine according to claim 1, characterized in that: It also comprises an anti-drop ring (13) fixed near the end of the screen cylinder (1), and the bottom end of the funnel (2) passes through the anti-drop ring (13) and extends into the screen cylinder (1).

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