An inner wall sand blasting device for large cylinder inner wall sand blasting

Abstract

The present application relates to the field of sand blasting device, especially to an inner wall sand blasting device for sand blasting of inner wall of large cylinder, comprising an inner wall sand blasting gun movement device, a long rod and a sand blasting gun; the inner wall sand blasting gun movement device is used to drive the long rod to move left or right, and the long rod is provided with the sand blasting gun for sand blasting treatment of the inner wall of the cylinder; further comprising a left casing, a right casing, a left push rod, a left blocking ring, a right push rod and a right blocking ring; the left casing and the right casing are fixedly connected to the right part of the long rod; the nozzle of the sand blasting gun is located between the left casing and the right casing; a plurality of left push rods are installed on the left casing, and the pushing part of the left push rod is fixedly connected with the left blocking ring; a plurality of right push rods are installed on the right casing, and the pushing part of the right push rod is fixedly connected with the right blocking ring. The present application can overcome the problem that waste sand and dust are splashed from both ends of the cylinder to the environment during sand blasting, and can also clean the cylinder after sand blasting to obtain a clean cylinder.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of sand blasting device, especially to an inner wall sand blasting device for sand blasting of inner wall of large cylinder. BACKGROUND

[0002] The existing sand blasting device for sand blasting of large cylinder has many drawbacks. When carrying out sand blasting operation on large cylinder, a large amount of waste sand and dust will fly out through the left and right openings of the cylinder without any obstruction due to the lack of effective protection and recovery measures of the device.

[0003] These flying waste sand not only scatters on the workshop floor, increasing the difficulty of cleaning, but also may mix into the surrounding equipment, affecting the normal operation of the equipment. Dust is even more troublesome, which freely diffuses in the air of the workshop, not only reduces the visibility of the workshop, interferes with normal production operation, but also seriously damages the respiratory system health of the operator once inhaling the dust. In addition, the waste sand and dust diffused to the outside of the workshop will also pollute the surrounding natural environment, causing waste of resources and destroying the ecological balance.

[0004] Under this background, it is urgent to develop a new technology or device that can protect the sand blasting of both ends of the cylinder, effectively avoid the overflow of waste sand and dust, and thus avoid pollution of the environment, which is of great significance to improve production efficiency, reduce cost, protect the environment and ensure the health of employees. SUMMARY

[0005] In order to overcome the shortcomings of the existing device that has no protection or weak protection ability for both ends of the cylinder during sand blasting treatment of large cylinder, waste sand and dust fly out from both ends of the cylinder, pollute the environment and waste materials, the present application provides an inner wall sand blasting device for sand blasting of inner wall of large cylinder, which comprises an inner wall sand blasting gun movement device, a long rod and a sand blasting gun.

[0006] It also comprises a left housing, a right housing, a left push rod, a left blocking ring, a right push rod and a right blocking ring; the left housing and the right housing are fixed to the right part of the long rod; the nozzle of the sand blasting gun is located between the left housing and the right housing; a plurality of left push rods are installed on the left housing, and the pushing part of the left push rod is fixed with the left blocking ring; a plurality of right push rods are installed on the right housing, and the pushing part of the right push rod is fixed with the right blocking ring; when the sand blasting gun is used to sand blast both ends of the inner wall of the cylinder, the left blocking ring or the right blocking ring is used for shielding to avoid sand blasting.

[0007] As a preferred technical solution of the present application, a workpiece rotating mechanism is further provided to drive the cylinder to rotate at a constant speed.

[0008] As a preferred technical solution of the present application, the opposite sides of the left blocking ring and the right blocking ring are provided with inclined surfaces.

[0009] As a preferred technical solution of the present application, the left cover bottom is provided with a waste discharge port.

[0010] As a preferred technical solution of the present application, it further comprises a bristle block; the upper part of the left cover is provided with a slot; and the bristle block is detachably connected in the slot.

[0011] As a preferred technical solution of the present application, it further comprises a first electric outer support, a circular ring, a mounting shell and a cleaning piece; the right side of the right shell body is fixedly connected with the first electric outer support; the first electric outer support clamps the circular ring; the circular ring is fixedly connected with the mounting shell; and the right side of the mounting shell is detachably connected with the cleaning piece.

[0012] As a preferred technical solution of the present application, it further comprises a wiping piece; and the outer ring surface of the mounting shell is detachably connected with the wiping piece.

[0013] As a preferred technical solution of the present application, it further comprises a translation assembly, a protective cover shell and a second electric outer support; the translation assembly is arranged on the right side of the workpiece rotating mechanism; the moving part of the translation assembly is fixedly connected with the leftward arranged protective cover shell; and the second electric outer support is fixedly connected to the right side in the protective cover shell.

[0014] As a preferred technical solution of the present application, the inner diameter of the protective cover shell is greater than the outer diameter of the mounting shell.

[0015] As a preferred technical solution of the present application, the wiping piece is composed of a plurality of brush rods, and the cleaning piece is a porous sponge. Advantages

[0016] The present application provides a sand blasting device capable of cleaning the inner wall of a large cylinder and simultaneously performing sand blasting treatment, which can overcome the problem of waste sand and dust splashing from both ends of the cylinder to the environment during sand blasting, and can also clean the cylinder after sand blasting to obtain a clean cylinder.

[0017] The specific effects are as follows:

[0018] 1. Environmental protection: The left cover, the right shell body, the left blocking ring and the right blocking ring shield the sand blasting of the cylinder ends, 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 the operators.

[0019] 2. Cost saving: Effective control of waste sand and dust is conducive to the recycling of sand blasting materials and reduces production costs.

[0020] 3. Improve work quality: The workpiece rotating mechanism drives the cylinder to rotate at a constant speed, and cooperates with the inner wall sand blasting gun movement device to realize comprehensive and uniform sand blasting treatment of the inner wall of the cylinder.

[0021] 4. Enhanced cleaning function: the left shell bottom exhaust port is connected with an air extractor, which sucks the waste sand and dust, and utilizes the waste sand and dust. The left shell upper part is connected with a bristle block through a slot, which cleans the sand blasting residue on the inner wall of the cylinder, and cooperates with the air extractor to make the inner wall clean, preventing the subsequent waste sand and dust from falling. The cleaning part and the wiping part are added to clean the impurities on the inner wall of the cylinder before sand blasting, improving the sand blasting effect of the spray gun.

[0022] 5. Convenient maintenance: the ring component, the mounting shell, the cleaning part and the wiping part can be disassembled, which is convenient for cleaning or replacement. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 Structure schematic view of the inner wall sand blasting device for large cylinder inner wall sand blasting disclosed by the present application;

[0024] Figure 2 Partial structure schematic view of the inner wall sand blasting device for large cylinder inner wall sand blasting disclosed by the present application;

[0025] Figure 3 Cross-sectional view of the left shell, the right shell, the left push rod, the left blocking ring, the right push rod and the right blocking ring of the inner wall sand blasting device for large cylinder inner wall sand blasting disclosed by the present application;

[0026] Figure 4 State diagram of the cleaning part and the wiping part entering the inner wall of the cylinder of the inner wall sand blasting device for large cylinder inner wall sand blasting disclosed by the present application;

[0027] Figure 5 State diagram of the spray gun spraying the left end of the inner wall of the cylinder of the inner wall sand blasting device for large cylinder inner wall sand blasting disclosed by the present application;

[0028] Figure 6 State diagram of the spray gun spraying the non-left end and the right end of the inner wall of the cylinder of the inner wall sand blasting device for large cylinder inner wall sand blasting disclosed by the present application;

[0029] Figure 7 State diagram of the spray gun spraying the right end of the inner wall of the cylinder of the inner wall sand blasting device for large cylinder inner wall sand blasting disclosed by the present application;

[0030] Figure 8 A enlarged view of Figure 7

[0031] Figure 9 Structure schematic view of the bristle block installed in the slot of the inner wall sand blasting device for large cylinder inner wall sand blasting disclosed by the present application;

[0032] Figure 10 Structure schematic view of the wiping part disassembled from the mounting shell of the inner wall sand blasting device for large cylinder inner wall sand blasting disclosed by the present application;

[0033] ​Figure 11 The first electric outer strutter, the circular ring, the mounting shell, the cleaning piece, the wiping piece, the translation assembly, the protective cover shell and the second electric outer strutter for the inner wall sand blasting device for the inner wall sand blasting of large cylinder are disclosed.

[0034] The names and serial numbers of the components in the figure are as follows: 100-cylinder, 1-long rod, 2-spraying gun, 3-left cover shell, 4-right shell, 5-left push rod, 6-left blocking ring, 7-right push rod, 8-right blocking ring, 1a-inclined surface, 3a-waste outlet, 9-workpiece rotating mechanism, 101-bristle block, 3b-slotted, 201-first electric outer strutter, 202-circular ring, 203-mounting shell, 204-cleaning piece, 205-wiping piece, 206-translation assembly, 207-protective cover shell, 208-second electric outer strutter. DETAILED DESCRIPTION

[0035] Although the present application can be described with respect to particular applications or industries, those skilled in the art will recognize that the present application has a much broader scope. One of ordinary skill in the art will recognize that terms such as: above, below, upper, lower, etc. are used to describe the drawings and are not intended to limit the scope of the application as defined by the appended claims. Any numerical designations such as: first or second are merely illustrative and are not intended to limit the scope of the application in any way.

[0036] Example 1: An inner wall sand blasting device for the inner wall sand blasting of large cylinder, as shown in the figure, comprising an inner wall spraying gun movement device, a long rod 1 and a spraying gun 2; the inner wall spraying gun movement device is used to drive the long rod 1 to move left or right, and the long rod 1 is provided with the spraying gun 2 for sand blasting treatment of the inner wall of the cylinder; Figures 1-11

[0037] Further comprising a left cover shell 3, a right shell 4, a left push rod 5, a left blocking ring 6, a right push rod 7 and a right blocking ring 8; the left cover shell 3 and the right shell 4 are fixed to the right part of the long rod 1, and the right shell 4 is hollow; the nozzle of the spraying gun 2 is located between the left cover shell 3 and the right shell 4, and the distance between the left cover shell 3 and the right shell 4 is 10-40 cm; a plurality of left push rods 5 are installed on the left cover shell 3, the pushing part of the left push rod 5 is fixed with the left blocking ring 6, and the left blocking ring 6 is in sliding connection with the outer ring surface of the left cover shell 3; a plurality of right push rods 7 are installed on the right shell 4, the pushing part of the right push rod 7 is fixed with the right blocking ring 8, and the right blocking ring 8 is in sliding connection with the outer ring surface of the right shell 4; when the spraying gun 2 sprays sand on both ends of the inner wall of the cylinder 100, the left blocking ring 6 or the right blocking ring 8 is used for shielding to avoid sand splashing.

[0038] Further comprising a workpiece rotating mechanism 9, which drives the cylinder 100 to rotate at a constant speed.

[0039] The opposite sides of the left blocking ring 6 and the right blocking ring 8 are provided with inclined surfaces 1a.​

[0040] In the embodiment of the present application, the left push rod 5 and the right push rod 7 are pneumatic push rods driven by air.

[0041] In order to overcome the problem that the existing device has no protection or weak protection ability for the two ends of the cylinder during sand blasting of the large cylinder, and waste sand and dust fly from the two ends of the cylinder, polluting the environment and wasting materials, the present application is proposed.

[0042] When the present application works, the cylinder 100 is first transferred to the workpiece rotating mechanism 9, and the cylinder 100 is uniformly rotated by the workpiece rotating mechanism 9. At this time, the cylinder 100 is on the same axis as the left cover 3 and the right cover 4. Then the long rod 1 is moved to the right by the inner wall gun moving device, so that the gun 2, the left cover 3 and the right cover 4 move in the cylinder 100. When the gun 2 moves to the right, the inner wall of the cylinder 100 is sandblasted. During the sandblasting process, the cylinder 100 is rotated by the workpiece rotating mechanism 9, so that complete sandblasting of the inner wall of the cylinder 100 is realized.

[0043] The left end port of the cylinder 100 is closed for sandblasting as follows:

[0044] As shown in Figure 5 When the nozzle of the gun 2 is directed at the left end port of the cylinder 100, the left push rod 5 is controlled to move the left blocking ring 6 to the right, so that the left blocking ring 6 contacts the cylinder 100, thereby closing the left end port of the cylinder 100. Then the gun 2 is controlled to start working and sandblasts the inner wall of the cylinder 100. At this time, the waste sand and dust generated by the gun 2 sandblasting the inner wall are confined between the left cover 3, the right cover 4, the left blocking ring 6 and the cylinder 100, so that the waste sand and dust cannot spread to the outside through the left end port of the cylinder 100, thereby avoiding pollution of the environment.

[0045] The non-left end and right end regions of the cylinder 100 are closed for sandblasting as follows:

[0046] As the gun 2 continues to move to the right for sandblasting, the left push rod 5 gradually moves the left blocking ring 6 to the left for resetting, and then as shown in Figure 6

[0047] The left end port of the cylinder 100 is closed for sandblasting as follows:

[0048] As the gun 2 continues to move to the right for sandblasting, when the gun 2 sandblasts the right end port of the cylinder 100, the right push rod 7 is controlled to move the right blocking ring 8 to the left, so that the right blocking ring 8 closes the right end port of the cylinder 100. Then the waste sand and dust generated by the gun 2 sandblasting the inner wall are confined between the left cover 3, the right cover 4, the right blocking ring 8 and the cylinder 100, so that the waste sand and dust cannot spread to the outside through the right end port of the cylinder 100, thereby avoiding pollution of the environment.

[0049] ​It should be noted that the left cover 3 is provided with a waste discharge port 3a at the bottom, and the waste discharge port 3a is connected with an exhaust fan, so that the waste sand and dust generated during the sand blasting operation can be sucked away by the exhaust fan, and the waste sand can be recycled.

[0050] Embodiment 2: on the basis of embodiment 1, as shown in Figures 1-11 The upper part of the left cover 3 is provided with a slot 3b, and the slot 3b is located to the left of the left push rod 5. The brush block 101 is detachably connected in the slot 3b.

[0051] On the basis of embodiment 1, after the barrel 100 is treated by sand blasting, some waste sand and dust will remain on the inner wall. In order to solve this problem, the brush block 101 is arranged, so that when the barrel 100 rotates, the waste sand and dust remaining on the inner wall of the barrel 100 after sand blasting can be swept down by the brush block 101, and the waste sand and dust swept down can be sucked away by the suction fan of the waste discharge port 3a. Therefore, the barrel 100 after sand blasting can be kept clean, and the waste sand and dust can be prevented from falling into the external environment during subsequent transportation of the barrel 100.

[0052] Embodiment 3: on the basis of embodiment 1 or 2, as shown in Figures 1-11 The first electric outer support 201, the circular ring 202, the mounting shell 203 and the cleaning piece 204 are further arranged. The first electric outer support 201 is fixed to the right side of the right shell 4. The circular ring 202 is clamped on the first electric outer support 201. The mounting shell 203 is fixed to the circular ring 202. The cleaning piece 204 is detachably connected to the right side of the mounting shell 203.

[0053] The wiping piece 205 is further arranged, and the wiping piece 205 is detachably connected to the outer ring surface of the mounting shell 203.

[0054] The translation assembly 206, the protective cover 207 and the second electric outer support 208 are further arranged. The translation assembly 206 is arranged to the right of the workpiece rotating mechanism 9. The moving part of the translation assembly 206 is fixedly connected with the left protective cover 207. The second electric outer support 208 is fixedly connected to the right side in the protective cover 207.

[0055] The inner diameter of the protective cover 207 is greater than the outer diameter of the mounting shell 203.

[0056] Before sandblasting, existing large cylinders often have debris on their inner walls, which obstructs the sandblasting and affects the performance of the spray gun 2. Therefore, when the right housing 4 moves to the right during operation, the first electric external support 201, the ring 202, the mounting shell 203, the cleaning component 204, and the wiping component 205 also move to the right. Since the cylinder 100 is rotating, the wiping component 205 can sweep away some debris from the inner wall of the cylinder 100, while the cleaning component 204 cleans the inner wall of the cylinder 100, allowing the subsequent spray gun 2 to perform sandblasting on the clean inner wall.

[0057] In this embodiment of the invention, the wiping member 205 is composed of multiple brush rods, so the brush rods can trap the debris swept down from the inner wall of the cylinder 100, preventing the debris from accumulating on the right side of the wiping member 205 and affecting the cleaning effect on the inner wall of the cylinder 100; the cleaning member 204 is a porous sponge, so that some small debris on the inner wall of the cylinder 100 can be carried away by the pores.

[0058] Furthermore, such as Figure 7 As shown, when the ring 202, mounting shell 203, cleaning component 204, and wiping component 205 move to the right into the protective cover 207, the left end of the ring 202 is fitted onto the first electric external support 201, and the right end is fitted onto the second electric external support 208. Because the inner diameter of the protective cover 207 is larger than the outer diameter of the mounting shell 203, the debris cleaned by the cleaning component 204 and the wiping component 205 can be stored inside the protective cover 207. When it is necessary to remove the ring 202, mounting shell 203, cleaning component 204, and wiping component 205, the first electric external support 201 is controlled not to expand outward, while the second electric external support 208 expands outward. Thus, when the first electric external support 201 is driven to move to the left and reset, the ring 202, mounting shell 203, cleaning component 204, and wiping component 205 remain inside the protective cover 207 through the second electric external support 208, facilitating subsequent cleaning or replacement.

[0059] It should be noted that initially, the protective cover 207 covers the right end of the cylinder 100. After the annular component 202, mounting shell 203, cleaning component 204, and wiping component 205 move to the right and inside the protective cover 207, the annular component 202, mounting shell 203, cleaning component 204, and wiping component 205 continue to move to the right, and the protective cover 207 separates from the right end of the cylinder 100. At the same time, the translation component 206 drives the protective cover 207 to move to the right to adapt.

[0060] In this embodiment of the invention, both the first electric external support 201 and the second electric external support 208 are provided with a plurality of electrically extended or retractable moving blocks, thereby clamping and fixing the ring 202.

[0061] The above merely illustrates the embodiments of the present application, and is not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process conversion, or direct or indirect application in other related technical fields, which is made by using the content of the present application, is also included in the patent protection scope of the present application.

Claims

1. An inner wall sand blasting device for sand blasting the inner wall of a large cylinder, comprising an inner wall sand blasting gun movement device, a long rod (1) and a sand blasting gun (2); the inner wall sand blasting gun movement device is used to drive the long rod (1) to move left or right, and the sand blasting gun (2) for sand blasting treatment of the inner wall of the cylinder is installed on the long rod (1); characterized in that It also comprises a left casing (3), a right casing (4), a left push rod (5), a left blocking ring (6), a right push rod (7) and a right blocking ring (8); the left casing (3) and the right casing (4) are fixedly connected to the right part of the long rod (1); the nozzle of the sand blasting gun (2) is located between the left casing (3) and the right casing (4); a plurality of left push rods (5) are installed on the left casing (3), and the pushing part of the left push rod (5) is fixedly connected with the left blocking ring (6); a plurality of right push rods (7) are installed on the right casing (4), and the pushing part of the right push rod (7) is fixedly connected with the right blocking ring (8); when the sand blasting gun (2) is used to sand blast the two ends of the inner wall of the cylinder (100), the left blocking ring (6) or the right blocking ring (8) is used for shielding to avoid sand blasting splashing; It also comprises a bristle block (101); a slotted hole (3b) is formed in the upper part of the left casing (3); the bristle block (101) is detachably connected in the slotted hole (3b); It also comprises a first electric outer support (201), a circular ring (202), a mounting shell (203) and a cleaning piece (204); the first electric outer support (201) is fixedly connected to the right side of the right casing (4); the circular ring (202) is clamped on the first electric outer support (201); the mounting shell (203) is fixedly connected to the circular ring (202); and the cleaning piece (204) is detachably connected to the right side of the mounting shell (203); It also comprises a wiping piece (205), which is detachably connected to the outer ring surface of the mounting shell (203); It also comprises a translation assembly (206), a protective cover shell (207) and a second electric outer support (208); the translation assembly (206) is arranged to the right of the workpiece rotating mechanism (9); the moving part of the translation assembly (206) is fixedly connected with the leftward protective cover shell (207); and the second electric outer support (208) is fixedly connected to the right side in the protective cover shell (207).

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

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

4. The inner wall sand blasting device for sand blasting the inner wall of a large cylinder according to claim 1, characterized in that: A waste discharge hole (3a) is formed in the bottom of the left casing (3).

5. The inner wall sand blasting device for sand blasting the inner wall of a large cylinder according to claim 1, characterized in that: The inner diameter of the protective cover shell (207) is greater than the outer diameter of the mounting shell (203).

6. The inner wall sand blasting device for sand blasting the inner wall of a large cylinder according to claim 1, characterized in that: The wiping piece (205) is composed of a plurality of brush rods, and the cleaning piece (204) is a porous sponge.

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