Protective device for coreless grinding machine

By designing a protective cover, a suction fan, and a filtration system on the centerless grinder, the problem of dust handling during the grinding process was solved, achieving the prevention of chip splashing and dust filtration, thus protecting the health of the workers.

CN224274365UActive Publication Date: 2026-05-26EAGLE METALWARE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
EAGLE METALWARE
Filing Date
2025-06-05
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing protective devices for centerless grinders cannot effectively handle the dust generated during the grinding process, which can harm the health of workers.

Method used

A protective device comprising a protective cover, a suction fan, a filter box, and a storage cylinder was designed. The protective cover is moved by an electric slide rail, the suction fan draws in dust, which is then filtered by the filter box and further processed in the storage cylinder.

Benefits of technology

It effectively prevents debris from splashing, filters and handles dust, protects the health of workers, and prevents dust from harming their bodies.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a coreless grinding machine protection device, and particularly relates to the technical field of grinding machines, the coreless grinding machine protection device comprises a coreless grinding machine and a supporting frame arranged on the left side of the outer surface of the coreless grinding machine, and electric sliding rails are jointly and fixedly installed on the front side and the rear side of the outer surface of the supporting frame and the front side and the rear side of the outer surface of the coreless grinding machine; and a protective cover for protection during operation of the coreless grinding machine is fixedly mounted on the top surfaces of the sliding blocks of the two electric sliding rails. According to the protective device for the coreless grinding machine, in the actual work, a sliding block of the electric sliding rail drives the protective cover to move so as to cover the coreless grinding machine and prevent chippings from splashing, the suction fan can suck dust flying in the protective cover into the filter box through the conveying pipe, the filter plate filters the dust, and the dust is prevented from being splashed. And the filtered air enters the storage cylinder and is in contact with water in the storage cylinder so as to carry out secondary treatment on the air, so that the dust is conveniently treated, and the damage of the dust to the body of a worker is effectively avoided.
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Description

Technical Field

[0001] This utility model relates to the field of grinding machine technology, and in particular to a protective device for a centerless grinding machine. Background Technology

[0002] A centerless grinder is a type of grinder that does not require workpiece axis positioning for grinding. It mainly consists of three mechanisms: a grinding wheel, an adjusting wheel, and a workpiece support. The grinding wheel is responsible for the actual grinding work, the adjusting wheel controls the rotation of the workpiece and the feed rate, and the workpiece support supports the workpiece during grinding. During the processing of a centerless grinder, the high-speed rotation of the grinding wheel and the friction with the workpiece can easily generate flying debris. The flying debris can easily cause injury to the workers, so protective devices are needed to prevent injury from flying debris.

[0003] A search revealed, for example, a utility model with publication number CN214869196U, which discloses a protective device for a centerless grinder, including a rear guard plate and a front guard plate. Two telescopic guard plate structures are connected between the rear and front guard plates. Each telescopic guard plate structure includes a support plate and a telescopic plate, which are slidably connected to the support plate. During the grinding of a workpiece, a certain amount of dust is generated. This dust is easily inhaled by workers, and as the working hours increase, it can cause damage to the workers' health. However, this utility model is not convenient for dust disposal. Therefore, in order to solve the above defects, the inventor proposes a protective device for a centerless grinder. Utility Model Content

[0004] The main purpose of this utility model is to provide a protective device for a coreless grinding machine, which can effectively solve the problem that existing protective devices are not convenient for handling dust.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A protective device for a centerless grinder includes a centerless grinder and a support frame located on the left side of the outer surface of the centerless grinder. Electric slide rails are fixedly installed on both the front and rear sides of the outer surface of the support frame and the front and rear sides of the outer surface of the centerless grinder. A protective cover for protection during operation of the centerless grinder is fixedly installed on the top surface of the slider of the two electric slide rails.

[0007] A support plate is fixedly installed on the middle of the rear side of the outer surface of the centerless grinding machine. A suction fan is fixedly installed on the middle of the top surface of the support plate. A storage cylinder is fixedly installed on one side of the top surface of the support plate. A filter box is fixedly installed on one side of the top surface of the support plate, and the suction fan is located between the filter box and the storage cylinder.

[0008] Preferably, an electric actuator is fixedly installed on the outer top surface of the protective cover, and a connecting plate is fixedly installed on the output end of the electric actuator. Two telescopic rods are fixedly installed on the outer top surface of the protective cover, and the connecting plate is fixedly connected to both telescopic rods.

[0009] Preferably, connecting rods are fixedly installed on both the left and right sides of the bottom surface of the connecting plate, and protective plates are fixedly installed on the ends of the two connecting rods away from the connecting plate, with the protective plates located on the left and right sides of the protective cover.

[0010] Preferably, an air supply pipe is fixedly installed on one side of the inside of the storage cylinder, a first connecting pipe is fixedly connected between the storage cylinder and the outlet of the suction fan, and the first connecting pipe extends into the inside of the storage cylinder and is fixedly connected to the air supply pipe. An air outlet pipe is fixedly installed on the top surface of the storage cylinder, a water inlet pipe is fixedly installed on the upper surface of the outer surface of the storage cylinder, and a water outlet pipe is fixedly installed on the lower surface of the outer surface of the storage cylinder.

[0011] Preferably, a second connecting pipe is fixedly connected between the inlet of the suction fan and the filter box, a transmission pipe is fixedly installed between the filter box and the protective cover, a filter plate is fixedly installed inside the filter box, and multiple collection cylinders are fixedly installed on the outer bottom surface of the filter box, with a sealing cap threaded to the bottom of the outer surface of the collection cylinder.

[0012] Preferably, a movable rod is slidably connected to the top surface of the filter box, with a portion of the movable rod located inside the filter box and the other portion located outside the filter box. A brush plate is fixedly installed at the end of the movable rod inside the filter box, and a push plate is fixedly installed at the end of the movable rod outside the filter box. A spring is fixedly installed on the top surface of the filter box, and the movable rod passes through the inside of the spring. The spring is fixedly connected to the bottom surface of the push plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This utility model discloses a protective device for a centerless grinder. By setting up a protective cover, in actual operation, the slider of the electric slide rail drives the protective cover to move, so as to cover the centerless grinder and prevent debris from flying. The suction fan can suck the dust flying inside the protective cover into the filter box through the transmission pipe. The filter plate filters it, and the filtered air will enter the storage cylinder and come into contact with the water in the storage cylinder for secondary treatment, thereby facilitating the handling of dust and effectively preventing dust from causing harm to the workers. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a side view of the support frame structure of this utility model;

[0017] Figure 3 For the present utility model Figure 2 Enlarged view of section A in the middle;

[0018] Figure 4 This is a schematic diagram of the protective cover structure of this utility model;

[0019] Figure 5 This is a cross-sectional view of the storage cylinder of this utility model;

[0020] Figure 6 This is a cross-sectional view of the filter box of this utility model.

[0021] In the diagram: 1. Centerless grinder; 2. Support frame; 3. Protective cover; 4. Electric slide rail; 101. Support plate; 102. Suction fan; 103. Storage cylinder; 104. First connecting pipe; 105. Second connecting pipe; 106. Filter box; 107. Transmission pipe; 301. Electric push rod; 302. Telescopic rod; 303. Connecting rod; 304. Protective plate; 305. Connecting plate; 1031. Air supply pipe; 1032. Air outlet pipe; 1033. Water inlet pipe; 1034. Water outlet pipe; 1061. Filter plate; 1062. Brush plate; 1063. Movable rod; 1064. Spring; 1065. Push plate; 1066. Sealing cover; 1067. Collection cylinder. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] This utility model discloses a protective device for a centerless grinding machine, such as Figure 1-6 As shown, the centerless grinder 1 includes a centerless grinder 1 and a support frame 2 located on the left side of the outer surface of the centerless grinder 1. After the centerless grinder 1 is powered on, the workpiece is placed horizontally between the guide wheel and the support plate 101. It does not need to be clamped at both ends and is driven to rotate by friction alone. The guide wheel rotates at high speed, and the workpiece is driven to rotate by friction. The grinding wheel grinds the outer circle of the workpiece at a higher linear speed. The tilt angle of the guide wheel causes the workpiece to move axially during the grinding process, realizing continuous processing. By adjusting the distance or speed difference between the guide wheel and the grinding wheel, the grinding depth and feed rate are controlled. The shape of the guide wheel and the grinding wheel are periodically dressed to ensure processing accuracy and surface quality.

[0024] Electric slide rails 4 are fixedly installed on both the front and rear sides of the outer surface of the support frame 2 and the front and rear sides of the outer surface of the centerless grinder 1. The electric slide rails 4 are powered by an external power source. When the electric slide rails 4 are powered on, the user sets the movement direction, speed and distance of the slide rails through a remote control. The controller inside the electric slide rails 4 converts the electrical signal into the rotation action of the motor. The motor shaft drives the transmission components to rotate, converting the rotational motion into the linear motion of the slider.

[0025] Furthermore, the top surfaces of the sliders of the two electric slide rails 4 are jointly fixedly equipped with protective covers 3 for protection during the operation of the centerless grinder 1. When the sliders of the two electric slide rails 4 run simultaneously, they can drive the protective covers 3 to move so that the protective covers 3 can move to one side of the centerless grinder 1.

[0026] The protective cover 3 is made of transparent polycarbonate material, which makes the protective cover 3 transparent, thus preventing debris from flying while also allowing the staff to observe the processing of the centerless grinder 1.

[0027] A support plate 101 is fixedly installed on the middle of the rear side of the outer surface of the centerless grinder 1. A suction fan 102 is fixedly installed on the middle of the top surface of the support plate 101. The suction fan 102 is powered by an external power source. When the suction fan 102 is powered on, the motor of the suction fan 102 drives the impeller to rotate. When the impeller rotates, the air is thrown from the center to the periphery under the action of centrifugal force and guided to the outlet through the spiral shell. At the same time, a negative pressure is formed in the center to draw in air.

[0028] A storage cylinder 103 is fixedly installed on one side of the top surface of the support plate 101, and a filter box 106 is fixedly installed on one side of the top surface of the support plate 101. The suction fan 102 is located between the filter box 106 and the storage cylinder 103.

[0029] An electric actuator 301 is fixedly installed on the top surface of the protective cover 3, and a connecting plate 305 is fixedly installed on the output end of the electric actuator 301. Two telescopic rods 302 are fixedly installed on the top surface of the protective cover 3, and the connecting plate 305 is fixedly connected to the two telescopic rods 302. The electric actuator 301 is powered by an external power source. The electric actuator 301 can push the connecting plate 305 to rise and fall. When the connecting plate 305 rises and falls, it will drive the two telescopic rods 302 to extend and retract.

[0030] Connecting rods 303 are fixedly installed on both the left and right sides of the bottom surface of the connecting plate 305, and protective plates 304 are fixedly installed on the ends of the two connecting rods 303 away from the connecting plate 305. The protective plates 304 are located on the left and right sides of the protective cover 3. When the connecting plate 305 is raised or lowered, it will drive the two connecting rods 303 and the two protective plates 304 to rise or fall. When the two protective plates 304 are lowered, they can cover the openings on both sides of the protective cover 3. The two protective plates 304 are also made of transparent polycarbonate material.

[0031] An air supply pipe 1031 is fixedly installed on one side of the inside of the storage cylinder 103. A first connecting pipe 104 is fixedly connected between the storage cylinder 103 and the outlet of the suction fan 102. The first connecting pipe 104 extends into the inside of the storage cylinder 103 and is fixedly connected to the air supply pipe 1031. An air outlet pipe 1032 is fixedly installed on the top surface of the storage cylinder 103. A water inlet pipe 1033 with a valve is fixedly installed on the upper surface of the outer surface of the storage cylinder 103. A water outlet pipe 1034 with a valve is fixedly installed on the lower surface of the outer surface of the storage cylinder 103.

[0032] External water can enter the storage tank 103 through the water inlet pipe 1033. When external water enters the storage tank 103, it will submerge the air supply pipe 1031. Then, when dusty air enters the air supply pipe 1031 through the first connecting pipe 104, it will enter the water in the storage tank 103 through the air supply pipe 1031.

[0033] Dust in the air will enter the water in the storage cylinder 103 along with the air, thereby treating the dust in the air, and the treated air will be discharged through the air outlet pipe 1032.

[0034] A second connecting pipe 105 is fixedly connected between the inlet of the suction fan 102 and the filter box 106. A transmission pipe 107 is fixedly installed between the filter box 106 and the protective cover 3. A filter plate 1061 is fixedly installed inside the filter box 106. The filter plate 1061 is made of metal. Multiple collection cylinders 1067 are fixedly installed on the outer bottom surface of the filter box 106. A sealing cap 1066 is threadedly connected to the bottom of the outer surface of the collection cylinder 1067. The suction fan 102 can suck the dust generated by the centerless grinder 1 working in the protective cover 3 into the filter box 106 through the transmission pipe 107. When the air containing dust enters the filter box 106, it will come into contact with the filter plate 1061. When the size of the air is larger than the size of the opening of the filter plate 1061, it will be blocked, so as to filter the larger impurities and dust in the air.

[0035] A movable rod 1063 is slidably connected to the outer top surface of the filter box 106. A part of the movable rod 1063 is located inside the filter box 106, and another part is located outside the filter box 106. The movable rod 1063 can slide up and down on the outer top surface of the filter box 106.

[0036] A brush plate 1062 is fixedly installed at one end of the movable rod 1063 inside the filter box 106, and a push plate 1065 is fixedly installed at the other end of the movable rod 1063 outside the filter box 106. When the movable rod 1063 moves, it will drive the brush plate 1062 and the push plate 1065 to move.

[0037] A spring 1064 is fixedly installed on the top surface of the filter box 106, and a movable rod 1063 passes through the inside of the spring 1064. The spring 1064 is fixedly connected to the bottom surface of the push plate 1065.

[0038] After the filter plate 1061 has been used for a long time, the operator holds and presses the push plate 1065 to lower it and squeeze the spring 1064. When the push plate 1065 lowers, it will drive the movable rod 1063 and the brush plate 1062 to lower. The brush plate 1062 can then wipe the filter plate 1061. Afterwards, the operator releases the push plate 1065, and the squeezed spring 1064 will push the push plate 1065 to rise and reset. This process allows the brush plate 1062 to repeatedly wipe the filter plate 1061 up and down.

[0039] Impurities that fall off during wiping can fall into multiple collection cylinders 1067. By rotating the sealing cap 1066 and removing it, the dust inside the collection cylinders 1067 can be discharged.

[0040] The working principle of this utility model is as follows: After the centerless grinder 1 is powered on, the workpiece is placed horizontally between the guide wheel and the support plate 101. It does not need to be clamped at both ends, but is driven to rotate by friction alone. The guide wheel rotates at high speed, and the workpiece is driven to rotate by friction. The grinding wheel grinds the outer circle of the workpiece at a higher linear speed. The tilt angle of the guide wheel causes the workpiece to move axially during the grinding process, so as to realize continuous processing.

[0041] When the centerless grinder 1 is working, the user sets the moving direction, speed and distance of the slide rails via remote control. The controller inside the electric slide rail 4 converts the electrical signal into the rotation of the motor. The motor shaft drives the transmission components to rotate, converting the rotational motion into the linear motion of the slider. This causes the sliders of the two electric slide rails 4 to move the protective cover 3 toward one side of the centerless grinder 1. After the protective cover 3 covers the centerless grinder 1, the electric push rod 301 pushes the connecting plate 305 to descend, which causes the two protective plates 304 to descend and cover the openings on both sides of the protective cover 3 to prevent debris from flying.

[0042] Then, the suction fan 102 is turned on, and the dusty air in the protective cover 3 is sucked into the filter box 106 through the transmission pipe 107. The filter plate 1061 filters the large dust particles in the air. The filtered air will then enter the storage cylinder 103. The water in the storage cylinder 103 will perform secondary treatment on the air. The treated air will then be discharged through the air outlet pipe 1032.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A coreless grinder protection device, comprising a coreless grinder (1) and a support frame (2) arranged on the left side of the outer surface of the coreless grinder (1), characterized in that: Electric slide rails (4) are fixedly installed on both the front and rear sides of the outer surface of the support frame (2) and the front and rear sides of the outer surface of the centerless grinder (1). The top surfaces of the sliders of the two electric slide rails (4) are fixedly installed with protective covers (3) for protection when the centerless grinder (1) is in operation. A support plate (101) is fixedly installed on the middle of the rear side of the outer surface of the centerless grinding machine (1). A suction fan (102) is fixedly installed on the middle of the top surface of the support plate (101). A storage cylinder (103) is fixedly installed on one side of the top surface of the support plate (101). A filter box (106) is fixedly installed on one side of the top surface of the support plate (101), and the suction fan (102) is located between the filter box (106) and the storage cylinder (103).

2. The protective device for a centerless grinding machine according to claim 1, characterized in that: An electric actuator (301) is fixedly installed on the outer top surface of the protective cover (3), and a connecting plate (305) is fixedly installed on the output end of the electric actuator (301). Two telescopic rods (302) are fixedly installed on the outer top surface of the protective cover (3), and the connecting plate (305) is fixedly connected to both telescopic rods (302).

3. The protective device for a centerless grinding machine according to claim 2, characterized in that: Connecting rods (303) are fixedly installed on both the left and right sides of the bottom surface of the connecting plate (305), and protective plates (304) are fixedly installed on the ends of the two connecting rods (303) away from the connecting plate (305). The protective plates (304) are located on the left and right sides of the protective cover (3).

4. The protective device for a centerless grinding machine according to claim 1, characterized in that: An air supply pipe (1031) is fixedly installed on one side of the inside of the storage cylinder (103). A first connecting pipe (104) is fixedly connected between the storage cylinder (103) and the outlet of the suction fan (102). The first connecting pipe (104) extends into the inside of the storage cylinder (103) and is fixedly connected to the air supply pipe (1031). An air outlet pipe (1032) is fixedly installed on the top surface of the storage cylinder (103). A water inlet pipe (1033) is fixedly installed on the upper surface of the outer surface of the storage cylinder (103), and a water outlet pipe (1034) is fixedly installed on the lower surface of the outer surface of the storage cylinder (103).

5. A protective device for a centerless grinding machine according to claim 1, characterized in that: A second connecting pipe (105) is fixedly connected between the inlet of the suction fan (102) and the filter box (106). A transmission pipe (107) is fixedly installed between the filter box (106) and the protective cover (3). A filter plate (1061) is fixedly installed inside the filter box (106). Multiple collection cylinders (1067) are fixedly installed on the outer bottom surface of the filter box (106), and a sealing cap (1066) is threadedly connected to the bottom of the outer surface of the collection cylinder (1067).

6. A protective device for a centerless grinding machine according to claim 5, characterized in that: A movable rod (1063) is slidably connected to the outer top surface of the filter box (106), with a part of the movable rod (1063) located inside the filter box (106) and another part located outside the filter box (106). A brush plate (1062) is fixedly installed at one end of the movable rod (1063) inside the filter box (106), and a push plate (1065) is fixedly installed at the other end of the movable rod (1063) outside the filter box (106). A spring (1064) is fixedly installed on the outer top surface of the filter box (106), and the movable rod (1063) passes through the inside of the spring (1064). The spring (1064) is fixedly connected to the bottom surface of the push plate (1065).