Inner wall sand blasting device for sand blasting of inner wall of large barrel

Abstract

The invention relates to the field of sand blasting devices, in particular to an inner wall sand blasting device for sand blasting of the inner wall of a large barrel, which comprises an inner wall spray gun moving device, a long rod and a spray gun, the inner wall spray gun moving device is used for driving the long rod to move leftwards or rightwards, and a spray gun for performing sand blasting treatment on the inner wall of the cylinder body is mounted on the long rod; the device further comprises a left housing, a right housing, a left push rod, a left baffle ring, a right push rod and a right baffle ring. The right part of the long rod is fixedly connected with a left housing and a right housing; a nozzle of the spray gun is positioned between the left housing and the right housing; a plurality of left push rods are mounted on the left housing, and push parts of the left push rods are fixedly connected with left baffle rings; the right shell is provided with a plurality of right push rods, and push parts of the right push rods are fixedly connected with right baffle rings. The problem that waste sand and dust are splashed into the environment from the two ends of the barrel during sand blasting can be solved, meanwhile, the barrel subjected to sand blasting can be cleaned, and the barrel with the clean inner wall is obtained.

Description

Technical Field

[0001] The invention relates to the field of sandblasting devices, in particular to an inner wall sandblasting device used for sandblasting the inner wall of a large cylinder. Background Art

[0002] Existing sandblasting devices for sandblasting large cylinders have many disadvantages. When sandblasting a large cylinder, due to the lack of effective protection and recovery measures, a large amount of waste sand and dust will splash out through the openings on both ends of the cylinder without hindrance.

[0003] The splashed waste sand not only scatters on the workshop floor, making it more difficult to clean, but may also mix into surrounding equipment, affecting the normal operation of the equipment. Dust is even more difficult. It spreads in the workshop air, not only reducing visibility and interfering with normal production operations, but also seriously harming the respiratory health of operators once they inhale the dust. In addition, the waste sand and dust that drift outside the workshop will also pollute the surrounding natural environment, causing waste of resources and destroying the ecological balance.

[0004] In this context, it is urgent to develop a new technology or device that can perform sandblasting protection on both ends of the cylinder to effectively prevent the overflow of waste sand and dust, thereby avoiding environmental pollution. This is of great significance for improving production efficiency, reducing costs, protecting the environment and ensuring the health of employees. Summary of the invention

[0005] In order to overcome the shortcomings of the existing device for sandblasting a large cylinder, which has no protection or weak protection capability for both ends of the cylinder, and waste sand and dust splash from both ends of the cylinder, polluting the environment and wasting materials, the present invention provides an inner wall sandblasting device for sandblasting the inner wall of a large cylinder, comprising an inner wall spray gun moving device, a long rod and a spray gun; the inner wall spray gun moving device is used to drive the long rod to move left or right, and the long rod is equipped with a spray gun for sandblasting the inner wall of the cylinder; It also includes a left cover shell, a right shell, a left push rod, a left baffle ring, a right push rod and a right baffle ring; the right part of the long rod is fixedly connected to the left cover shell and the right shell; the nozzle of the spray gun is located between the left cover shell and the right shell; a plurality of left push rods are installed on the left cover shell, and the pushing part of the left push rod is fixedly connected to the left baffle ring; a plurality of right push rods are installed on the right shell, and the pushing part of the right push rod is fixedly connected to the right baffle ring; when the spray gun is sandblasting the two ends of the inner wall of the cylinder, it is shielded by the left baffle ring or the right baffle ring to avoid sandblasting splashing.

[0006] As a preferred technical solution of the present invention, it also includes a workpiece rotating mechanism, which drives the cylinder to rotate at a uniform speed.

[0007] As a preferred technical solution of the present invention, inclined surfaces are provided on the facing sides of the left retaining ring and the right retaining ring.

[0008] As a preferred technical solution of the present invention, a waste discharge port is provided at the bottom of the left cover shell.

[0009] As a preferred technical solution of the present invention, it also includes a bristle block; a groove is provided on the upper part of the left cover shell; and the bristle block is detachably connected in the groove.

[0010] As a preferred technical solution of the present invention, it also includes a first electric external support, a circular ring, a mounting shell and a cleaning piece; the first electric external support is fixedly connected to the right side of the right shell; the circular ring is clamped on the first electric external support; the mounting shell is fixedly connected to the circular ring; the cleaning piece is detachably connected to the right side of the mounting shell.

[0011] As a preferred technical solution of the present invention, it also includes a wiping piece, and the outer annular surface of the mounting shell is detachably connected to the wiping piece.

[0012] As a preferred technical solution of the present invention, it also includes a translation assembly, a protective cover shell and a second electric external supporter; the translation assembly is arranged on the right side of the workpiece rotation mechanism; the moving part of the translation assembly is fixedly connected to the protective cover shell arranged to the left; the second electric external supporter is fixedly connected to the right side of the protective cover shell.

[0013] As a preferred technical solution of the present invention, the inner diameter of the protective cover shell is larger than the outer diameter of the mounting shell.

[0014] As a preferred technical solution of the present invention, the wiping element is composed of a plurality of brush rods, and the cleaning element is a porous sponge. Beneficial Effects

[0015] The present invention provides a sandblasting device which can clean the inner wall of a large cylinder and can perform sandblasting at the same time. The sandblasting device can also overcome the problem that waste sand and dust splash into the environment from both ends of the cylinder during sandblasting, and can also clean the cylinder after sandblasting to obtain a cylinder with a clean inner wall.

[0016] The specific effects are as follows: 1. Environmental protection: The left cover, right shell, left baffle ring and right baffle ring are used to shield the two ends of the cylinder when the spray gun is sandblasting, so as to prevent waste sand and dust from splashing from both ends of the cylinder, avoid polluting the workshop floor and equipment, reduce damage to the surrounding natural environment, and protect the health of operators.

[0017] 2. Cost saving: effectively control waste sand and dust, facilitate the recycling of sandblasting materials and reduce production costs.

[0018] 3. Improve the work quality: the workpiece rotating mechanism drives the cylinder to rotate at a uniform speed, and cooperates with the inner wall spray gun movement device to achieve comprehensive and uniform sandblasting treatment on the inner wall of the cylinder.

[0019] 4. Enhanced cleaning function: The waste outlet at the bottom of the left cover is connected to an external exhaust fan to suck out waste sand and dust, and recycle the waste sand. The upper part of the left cover is slotted to connect the brush block to clean the sandblasting residue on the inner wall of the cylinder, and the exhaust fan is used to clean the inner wall to prevent the waste sand and dust from falling during subsequent transportation. Cleaning parts and wiping parts are added to sweep and clean the debris on the inner wall of the cylinder before sandblasting to improve the sandblasting effect of the spray gun.

[0020] 5. Easy maintenance: Components such as the ring, mounting shell, cleaning parts, and wiping parts are detachable for easy cleaning or replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the inner wall sandblasting device disclosed by the present invention for sandblasting the inner wall of a large cylinder; Figure 2 It is a schematic diagram of a part of the structure disclosed by the inner wall sandblasting device of the present invention for sandblasting the inner wall of a large cylinder; Figure 3 A cross-sectional view of a left cover shell, a right shell, a left push rod, a left baffle ring, a right push rod and a right baffle ring disclosed in the inner wall sandblasting device for sandblasting the inner wall of a large cylinder according to the present invention; Figure 4 A state diagram of the cleaning member and the wiping member disclosed in the inner wall sandblasting device for sandblasting the inner wall of a large cylinder of the present invention entering the inner wall of the cylinder; Figure 5 It is a state diagram of the spray gun disclosed in the inner wall sandblasting device for sandblasting the inner wall of a large cylinder of the present invention spraying the left end of the inner wall of the cylinder; Figure 6 It is a state diagram of the inner wall sandblasting device for sandblasting the inner wall of a large cylinder disclosed by the present invention, in which the spray gun sprays the inner wall of the cylinder other than the left end and the right end; Figure 7 It is a state diagram of the spray gun disclosed in the inner wall sandblasting device for sandblasting the inner wall of a large cylinder of the present invention spraying the right end of the inner wall of the cylinder; Figure 8 for Figure 7 A magnified image of point A; Fig. 9 It is a schematic structural diagram of the brush block installed in the slot disclosed in the inner wall sandblasting device for sandblasting the inner wall of a large cylinder of the present invention; Fig.10 It is a schematic structural diagram of the wiping member disclosed in the inner wall sandblasting device for sandblasting the inner wall of a large cylinder according to the present invention being disassembled from the mounting shell; Fig.11 An exploded view of a first electric outer support, a circular ring, a mounting shell, a cleaning member, a wiping member, a translation assembly, a protective cover shell and a second electric outer support disclosed in the inner wall sandblasting device for sandblasting the inner wall of a large cylinder of the present invention.

[0022] The names and serial numbers of the parts in the figure are: 100-cylinder, 1-long rod, 2-spray gun, 3-left cover shell, 4-right shell, 5-left push rod, 6-left baffle ring, 7-right push rod, 8-right baffle ring, 1a-inclined surface, 3a-waste discharge port, 9-workpiece rotation mechanism, 101-brush block, 3b-slotting, 201-first electric external support, 202-circular ring part, 203-mounting shell, 204-cleaning part, 205-wiping part, 206-translation assembly, 207-protective cover shell, 208-second electric external support. DETAILED DESCRIPTION

[0023] Although the present invention may be described with respect to a particular application or industry, those skilled in the art will recognize the broader applicability of the present invention. Those of ordinary skill in the art will recognize that terms such as above, below, upward, downward, etc. are used to describe the drawings and do not represent limitations on the scope of the present invention as defined by the appended claims. Any numerical designations such as first or second are merely exemplary and are not intended to limit the scope of the present invention in any way.

[0024] Embodiment 1: An inner wall sandblasting device for sandblasting the inner wall of a large cylinder, such as Figure 1-11 As shown, it includes an inner wall spray gun movement device, a long rod 1 and a spray gun 2; the inner wall spray gun movement device is used to drive the long rod 1 to move left or right, and the long rod 1 is equipped with a spray gun 2 for sandblasting the inner wall of the cylinder; It also includes a left cover shell 3, a right shell 4, a left push rod 5, a left baffle ring 6, a right push rod 7 and a right baffle ring 8; the right part of the long rod 1 is fixedly connected to the left cover shell 3 and the right shell 4, and the right shell 4 is hollow; the nozzle of the spray gun 2 is located between the left cover shell 3 and the right shell 4, and the left cover shell 3 and the right shell 4 are 10-40cm apart; a plurality of left push rods 5 are installed on the left cover shell 3, and the pushing part of the left push rod 5 is fixedly connected to the left baffle ring 6, and the left baffle ring 6 is slidably connected to the outer annular surface of the left cover shell 3; a plurality of right push rods 7 are installed on the right shell 4, and the pushing part of the right push rod 7 is fixedly connected to the right baffle ring 8, and the right baffle ring 8 is slidably connected to the outer annular surface of the right shell 4; when the spray gun 2 sandblasts the two ends of the inner wall of the cylinder 100, the left baffle ring 6 or the right baffle ring 8 is used to block it to avoid sandblasting splashing.

[0025] The workpiece rotating mechanism 9 is also included, and the cylinder 100 is driven to rotate at a uniform speed by the workpiece rotating mechanism 9 .

[0026] The left retaining ring 6 and the right retaining ring 8 are both provided with inclined surfaces 1 a on the facing sides thereof.

[0027] In the embodiment of the present invention, the left push rod 5 and the right push rod 7 are pneumatic push rods driven by pneumatic force.

[0028] The present invention is proposed to overcome the problem that during sandblasting of a large cylinder, the existing device has no protection or weak protection capability for both ends of the cylinder, waste sand and dust splash from both ends of the cylinder, polluting the environment and wasting materials.

[0029] When the present invention is working, the barrel 100 is first transferred to the workpiece rotating mechanism 9, and the barrel 100 is driven to rotate at a uniform speed by the workpiece rotating mechanism 9. At this time, the barrel 100, the left cover 3, and the right shell 4 are on the same axis; then the inner wall spray gun movement device drives the long rod 1 to move rightward, and then the spray gun 2, the left cover 3, and the right shell 4 move in the barrel 100; when the spray gun 2 moves to the right, the inner wall of the barrel 100 is sandblasted. During the sandblasting process, the barrel 100 is driven to rotate by the workpiece rotating mechanism 9, so that the inner wall of the barrel 100 is completely sandblasted; The closed sandblasting of the left port of the cylinder 100 is as follows: like Figure 5 As shown, when the nozzle of the spray gun 2 faces the left end of the barrel 100, the left push rod 5 is controlled to drive the left baffle ring 6 to move rightward, so that the left baffle ring 6 contacts the barrel 100, and then the left end of the barrel 100 is closed, and then the spray gun 2 is controlled to start working to perform sandblasting on the inner wall of the barrel 100. At this time, the waste sand and dust generated by the spray gun 2 after sandblasting the inner wall are confined between the left cover 3, the right shell 4, the left baffle ring 6 and the barrel 100, and then the waste sand and dust cannot spread to the outside through the left end of the barrel 100, thus avoiding environmental pollution; The closed sandblasting of the non-left and right end areas of the cylinder 100 is as follows: As the spray gun 2 continues to move rightward for sandblasting, the left push rod 5 gradually drives the left baffle ring 6 to move leftward and reset, and then Figure 6 As shown; The closed sandblasting of the left port of the cylinder 100 is as follows: As the spray gun 2 continues to move rightward for sandblasting, when the spray gun 2 is sandblasting the right end of the cylinder 100, the right push rod 7 is controlled to drive the right baffle ring 8 to move leftward, so that the right baffle ring 8 closes the right end of the cylinder 100, and then the waste sand and dust generated after the spray gun 2 sandblasts the inner wall are confined between the left cover 3, the right shell 4, the right baffle ring 8 and the cylinder 100, and then the waste sand and dust cannot spread to the outside through the right end of the cylinder 100, thus avoiding environmental pollution; It should be noted that a waste outlet 3a is provided at the bottom of the left cover 3, and an exhaust fan is externally connected to the waste outlet 3a. The exhaust fan is used to suck away the waste sand and dust generated by the sandblasting operation, and the waste sand is recycled.

[0030] Embodiment 2: Based on embodiment 1, Figure 1-11 As shown, a bristle block 101 is also included; a slot 3b is provided on the upper portion of the left cover 3, and the slot 3b is located on the left side of the left push rod 5; the bristle block 101 is detachably connected to the slot 3b.

[0031] On the basis of Example 1, after the inside of the cylinder 100 is sandblasted, some waste sand and dust will remain on the inner wall. To address this problem, the present invention provides a brush block 101. When the cylinder 100 rotates, the waste sand and dust remaining on the inner wall of the cylinder 100 after sandblasting are cleaned by the brush block 101. At the same time, the suction wind from the waste outlet 3a sucks away the cleaned waste sand and dust. In this way, the present invention can make the inner wall of the cylinder 100 clean after sandblasting, and prevent waste sand and dust from falling into the external environment when the cylinder 100 is subsequently transported.

[0032] Embodiment 3: Based on Embodiment 1 or 2, Figure 1-11 As shown, it also includes a first electric external support 201, a circular ring member 202, a mounting shell 203 and a cleaning member 204; the first electric external support 201 is fixedly connected to the right side of the right shell 4; the circular ring member 202 is clamped on the first electric external support 201; the mounting shell 203 is fixedly connected to the circular ring member 202; the cleaning member 204 is detachably connected to the right side of the mounting shell 203.

[0033] A wiper 205 is also included, and the outer annular surface of the mounting shell 203 is detachably connected to the wiper 205 .

[0034] It also includes a translation component 206, a protective cover shell 207 and a second electric external support device 208; the translation component 206 is arranged on the right side of the workpiece rotating mechanism 9; the moving part of the translation component 206 is fixedly connected to the protective cover shell 207 arranged to the left; the second electric external support device 208 is fixedly connected to the right side of the protective cover shell 207.

[0035] The inner diameter of the protective cover shell 207 is greater than the outer diameter of the mounting shell 203 .

[0036] Before the existing large-scale cylinder is used for sandblasting, there are debris on its inner wall, and the debris blocks the sprayed sand, which will affect the working effect of the spray gun 2. Based on this, when the present invention is working, that is, when the right shell 4 moves to the right, the right shell 4 will also drive the first electric outer support 201, the circular ring 202, the mounting shell 203, the cleaning member 204 and the wiping member 205 to move to the right together. Because the cylinder 100 is in a rotating state, the wiping member 205 can sweep down some debris on the inner wall of the cylinder 100, and at the same time, the inner wall of the cylinder 100 is cleaned by the cleaning member 204, so that the subsequent spray gun 2 can perform sandblasting on the clean inner wall.

[0037] In the embodiment of the present invention, the wiping member 205 is composed of a plurality of brush rods, so that the brush rods can catch the debris swept from the inner wall of the cylinder 100, thereby preventing the debris from accumulating on the right side of the wiping member 205 and affecting the cleaning effect of the inner wall of the cylinder 100; the cleaning member 204 is a porous sponge, so that some fine debris on the inner wall of the cylinder 100 can be removed by using the holes.

[0038] Furthermore, if Figure 7 As shown, when the circular ring member 202, the mounting shell 203, the cleaning member 204 and the wiping member 205 move to the right into the protective cover shell 207, the left end of the circular ring member 202 is sleeved on the first electric outer support 201, and the right end is sleeved on the second electric outer support 208; because the inner diameter of the protective cover shell 207 is larger than the outer diameter of the mounting shell 203, the debris cleaned by the cleaning member 204 and the wiping member 205 can be stored in the protective cover shell 207; when it is necessary to remove the circular ring member 202, the mounting shell 203, the cleaning member 204 and the wiping member 205, the first electric outer support 201 is controlled not to expand outward, and the second electric outer support 208 is expanded outward, so that when the first electric outer support 201 is driven to move to the left and reset, the circular ring member 202, the mounting shell 203, the cleaning member 204 and the wiping member 205 stay in the protective cover shell 207 through the second electric outer support 208, which is convenient for subsequent cleaning or replacement.

[0039] It should be noted that the initial protective cover shell 207 is covering the right end of the cylinder 100. After the annular member 202, the mounting shell 203, the cleaning member 204 and the wiping member 205 move to the right into the protective cover shell 207; the annular member 202, the mounting shell 203, the cleaning member 204 and the wiping member 205 continue to move to the right, the protective cover shell 207 is separated from the right end of the cylinder 100, and at the same time, the translation assembly 206 drives the protective cover shell 207 to adapt to the movement to the right.

[0040] In the embodiment of the present invention, the first electric outer supporter 201 and the second electric outer supporter 208 are both provided with a plurality of electrically extended or retracted moving blocks, so as to clamp and fix the circular ring member 202 .

[0041] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An inner wall sandblasting device for sandblasting the inner wall of a large cylinder, comprising an inner wall spray gun moving device, a long rod (1) and a spray gun (2); the inner wall spray gun moving device is used to drive the long rod (1) to move left or right, and the long rod (1) is equipped with a spray gun (2) for sandblasting the inner wall of the cylinder; Features: The invention also comprises a left cover shell (3), a right shell (4), a left push rod (5), a left baffle ring (6), a right push rod (7) and a right baffle ring (8); the right part of the long rod (1) is fixedly connected to the left cover shell (3) and the right shell (4); the nozzle of the spray gun (2) is located between the left cover shell (3) and the right shell (4); a plurality of left push rods (5) are mounted on the left cover shell (3), and the pushing part of the left push rod (5) is fixedly connected to the left baffle ring (6); a plurality of right push rods (7) are mounted on the right shell (4), and the pushing part of the right push rod (7) is fixedly connected to the right baffle ring (8); when the spray gun (2) performs sandblasting on the two ends of the inner wall of the cylinder (100), the left baffle ring (6) or the right baffle ring (8) is used to block the sandblasting and avoid sand splashing.

2. The inner wall sandblasting device for sandblasting the inner wall of a large cylinder according to claim 1, characterized in that: It also includes a workpiece rotating mechanism (9), which drives the cylinder (100) to rotate at a uniform speed.

3. The inner wall sandblasting device for sandblasting the inner wall of a large cylinder according to claim 1, characterized in that: The left retaining ring (6) and the right retaining ring (8) are both provided with inclined surfaces (1a) on the facing sides thereof.

4. The inner wall sandblasting device for sandblasting the inner wall of a large cylinder according to claim 1, characterized in that: A waste discharge port (3a) is provided at the bottom of the left cover (3).

5. The inner wall sandblasting device for sandblasting the inner wall of a large cylinder according to claim 1, characterized in that: It also includes a bristle block (101); a groove (3b) is provided on the upper part of the left cover shell (3); and the bristle block (101) is detachably connected in the groove (3b).

6. The inner wall sandblasting device for sandblasting the inner wall of a large cylinder according to claim 1, characterized in that: It also comprises a first electric outer support (201), a circular ring member (202), a mounting shell (203) and a cleaning member (204); the first electric outer support (201) is fixedly connected to the right side of the right housing (4); the circular ring member (202) is clamped on the first electric outer support (201); the mounting shell (203) is fixedly connected to the circular ring member (202); and the cleaning member (204) is detachably connected to the right side of the mounting shell (203).

7. The inner wall sandblasting device for sandblasting the inner wall of a large cylinder according to claim 6, characterized in that: It also includes a wiping piece (205), and the outer annular surface of the mounting shell (203) is detachably connected to the wiping piece (205).

8. The inner wall sandblasting device for sandblasting the inner wall of a large cylinder according to claim 7, characterized in that: It also includes a translation assembly (206), a protective cover shell (207) and a second electric external support device (208); the translation assembly (206) is arranged on the right side of the workpiece rotating mechanism (9); the moving part of the translation assembly (206) is fixedly connected to the protective cover shell (207) arranged to the left; and the second electric external support device (208) is fixedly connected to the right side of the protective cover shell (207).

9. The inner wall sandblasting device for sandblasting the inner wall of a large cylinder according to claim 8, characterized in that: The inner diameter of the protective cover shell (207) is greater than the outer diameter of the mounting shell (203).

10. An inner wall sandblasting device for sandblasting the inner wall of a large cylinder according to any one of claims 8 to 9, characterized in that: The wiping member (205) is composed of a plurality of brush rods, and the cleaning member (204) is a porous sponge.

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