Sand blasting machine and sand blasting system

Abstract

The utility model discloses a sand blasting machine and a sand blasting system, and the sand blasting machine comprises a sand blasting machine box, a sand storage device arranged at the top of the sand blasting machine box, and a sand blasting device and a sand collecting device which are arranged in the sand blasting machine box from top to bottom, the sand blasting device comprises a fixedly arranged gun rack mounting assembly and a gun disc adjustably arranged on the gun rack mounting assembly in the circumferential direction, the gun disc is of an annular structure and is uniformly provided with a plurality of spray guns in the circumferential direction, and the sand blasting machine box is provided with a feeding channel penetrating through the left side and the right side in the axis direction of the gun disc; and the spray gun is adjustably arranged on the gun disc along the radial direction and is communicated with the sand storage device and external compressed air. According to the sand blasting machine, the sand blasting mode of an existing sand blasting machine capable of achieving the circumferential sand blasting function is changed, a complex conveying mechanism does not need to be additionally arranged, the sand blasting device with the multiple spray guns distributed in the circumferential direction is arranged, therefore, uniform sand blasting is conducted on the peripheral face of a conveyed pipe fitting, the structure is simple, and meanwhile the sand blasting machining efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sandblasting, in particular to a sandblasting machine and a sandblasting system. Background Art

[0002] A sandblaster is a device that uses compressed air mixed with abrasive to impact and cut the surface of a workpiece. This process achieves a certain degree of cleanliness and varying degrees of roughness on the workpiece surface, improving its mechanical properties and fatigue resistance. This increases adhesion to the coating, extending the durability of the coating, and facilitating leveling and decorative effects. The sandblasting process also removes impurities, color variations, and oxide layers from the workpiece surface, roughening the surface, eliminating residual stress, and increasing the surface hardness of the substrate.

[0003] For tubular parts, in order to achieve uniform sandblasting of the outer circumference of the parts, a complex conveying mechanism is set up to allow the parts to rotate around themselves while being conveyed axially, thereby achieving circumferential sandblasting when passing through the spray gun. For example, a sandblasting device for metal pipes disclosed in the Chinese invention patent publication with authorization number CN110936301B, although a sandblasting machine with this structure can achieve circumferential sandblasting of pipe fittings, requires a complex conveying mechanism, resulting in a high overall cost. In addition, to ensure uniform circumferential sandblasting, the conveying speed of the pipe fittings needs to be very low, resulting in low sandblasting efficiency. Otherwise, it is easy to cause missed spraying areas, affecting the surface quality of the pipe fittings. Utility Model Content

[0004] The purpose of the utility model is to address the deficiencies of the existing technology and to propose a sandblasting machine and a sandblasting system, which can realize circumferential sandblasting without adding a complex transmission mechanism, and can improve the sandblasting processing efficiency while having a simple structure.

[0005] The technical solution to achieve the purpose of this utility model is:

[0006] A sandblasting machine comprises a sandblasting machine case, a sand storage device mounted on the top of the sandblasting machine case, and a sandblasting device and a sand collecting device arranged from top to bottom inside the sandblasting machine case. The sandblasting device comprises a fixed gun mount assembly and a gun disc adjustably arranged on the gun mount assembly along the circumferential direction. The gun disc is a circular ring structure and has a plurality of spray guns evenly arranged along the circumference. The sandblasting machine case is provided with a feed channel running through the left and right sides along the axial direction of the gun disc. The spray guns are adjustably mounted on the gun disc in the radial direction and are connected to the sand storage device and external compressed air.

[0007] Furthermore, a plurality of the sandblasting devices are arranged along the axial direction of the feed channel.

[0008] Furthermore, the gun discs of the plurality of sandblasting devices are staggered along the circumferential direction.

[0009] Furthermore, the gun disc is evenly distributed with strip grooves corresponding to the spray guns along the circumference, and pads fixedly mounted on the gun disc are symmetrically and parallelly provided on both sides of the strip groove to form a slide groove, and a corresponding slider is provided in the slide groove, and the spray gun is fixedly mounted on the slider, and a pressure plate that is tightly pressed on the slider is detachably fixed on the pad.

[0010] Furthermore, pipe limiting assemblies are provided at both ends of the feed channel, and the pipe limiting assemblies include a limiting frame that can be adjusted along the vertical direction on the sandblasting machine case, a first feeding roller is fixedly provided in the middle of the bottom of the limiting frame, a second feeding roller is elastically provided on the top along the longitudinal direction, and third feeding rollers are elastically provided on the inner walls on both sides along the horizontal direction and relatively arranged.

[0011] Furthermore, a translation device is provided at the bottom of the sandblasting machine case, and the translation device includes parallel light rails, movable rollers slidably mounted on the light rails, and a first drive motor fixedly mounted in the sandblasting machine case. A synchronous shaft rotatably mounted on the sandblasting machine case is connected between any pair of movable rollers, and the synchronous shaft is connected to the first drive motor through a gear transmission.

[0012] Furthermore, an openable and closable door panel is provided on the front of the sandblasting machine case in an area corresponding to the sandblasting device, a transparent window is provided on the door panel, and a quick locking mechanism is provided between the side surface and the sandblasting machine case.

[0013] Furthermore, the side of the door panel is provided with a groove opened on the sandblasting machine box, and the quick locking mechanism includes a cylinder fixedly installed in the groove, the piston rod of the cylinder is horizontally arranged and the end is hinged to a pressure rod, the middle part of the pressure rod is hinged to a connecting rod, and the other end of the connecting rod is hinged to a fixing seat fixedly installed on the cylinder body on the side of the cylinder close to the door panel.

[0014] A sandblasting system comprises a dust collector and the sandblasting machine as described above, wherein a cyclone separator is provided on the top of the sandblasting machine and a sand elevator is provided on the side; the air suction port, air exhaust port and sand discharge port of the cyclone separator are respectively connected to the sandblasting machine, the dust collector and the sand collecting device; the inlet of the sand elevator is connected to the sand collecting device, and the outlet is connected to the sand storage device.

[0015] Furthermore, the sand collecting device includes multiple sand collecting hoppers respectively arranged below the sand blasting device and a first auger connected to the bottom of the multiple sand collecting hoppers. The end of the first auger is vertically connected to a second auger, and the end of the second auger is connected to the inlet of the sand elevator.

[0016] By adopting the above technical solution, the utility model has the following beneficial effects:

[0017] (1) The sandblasting machine of the utility model changes the sandblasting method of the existing sandblasting machine that realizes the circumferential sandblasting function. There is no need to add a complex transmission mechanism. By setting a sandblasting device with multiple spray guns distributed along the circumference, the outer peripheral surface of the conveyed pipe can be evenly sandblasted. The structure is simple and the sandblasting processing efficiency can be improved.

[0018] (2) The utility model sandblasting machine is provided with multiple ones along the axial direction of the feed channel, thereby increasing the conveying rate of the pipe fittings and further improving the circumferential sandblasting efficiency.

[0019] (3) The gun discs of each sandblasting device of the present invention are staggered along the circumferential direction, thereby further improving the uniformity of the circumferential sandblasting of the pipe fittings.

[0020] (4) The utility model realizes radial adjustment of the spray gun through the cooperation of the slide groove and the slider, and fixes the spray gun through the pressure block. The structure is simple and the adjustment is convenient.

[0021] (5) The sandblasting machine of the present invention sets pipe limiting assemblies at both ends of the feed channel to ensure that the pipes delivered can be located at the axis of each sandblasting device, thereby further ensuring the uniformity of sandblasting.

[0022] (6) The sandblasting machine of the utility model is provided with a translation device, which facilitates the front and rear adjustment of the whole machine and facilitates the layout.

[0023] (7) The utility model has an openable and closable door panel with a transparent window, which is convenient for observing the sandblasting status of the internal workpiece.

[0024] (8) The utility model adopts a quick locking mechanism with a pneumatic structure, which has a simple structure, realizes automatic locking, and reduces manual labor intensity.

[0025] (9) The sandblasting system of the utility model adopts a sandblasting machine with a brand-new structure to realize high-speed circumferential sandblasting of pipe fittings, which significantly improves the sandblasting efficiency. It is also equipped with a sand elevator connected to a sand collecting device and a sand storage device to realize the recycling of sand.

[0026] (10) The sand collecting device of the utility model adopts an auger structure to realize the conveying of sand materials in multiple sand collecting hoppers, which has a simple structure and is convenient for conveying. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to make the content of the utility model easier to understand, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings, wherein:

[0028] Figure 1 This is a schematic structural diagram of the sandblasting system of the utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the sandblasting machine of the utility model;

[0030] Figure 3 This is a schematic structural diagram of the sandblasting device of the present utility model;

[0031] Figure 4 This is a schematic structural diagram of the quick locking mechanism of the utility model;

[0032] Figure 5 This is a structural diagram of the pipe limiting assembly of the utility model.

[0033] The reference numerals in the accompanying drawings are:

[0034] Sandblasting machine 100, dust collector 200, cyclone separator 300, sand material elevator 400;

[0035] Sandblasting machine case 1, door panel 1-1, sand storage device 2, sandblasting device 3, gun frame mounting assembly 3-1, support rod 3-1-1, gun frame mounting plate 3-1-2, mounting slot frame 3-1-3, connecting plate 3-1-4, gun disc 3-2, arc groove 3-2-1, third through hole 3-2-2, spray gun 3-3, pad 3-4, slider 3-5, pressure plate 3-6, sand collecting device 4, sand collecting hopper 4-1, first auger 4-2, second auger 4-3, translation device 5, light rail 5-1, moving roller 5-2, first drive motor 5-3, synchronous shaft 5-4, quick locking mechanism 6, cylinder 6-1, pressure rod 6-2, connecting rod 6-3, fixed seat 6-4, pipe limiting assembly 7, limiting frame 7-1, first feeding roller 7-2, second feeding roller 7-3, third feeding roller 7-4. DETAILED DESCRIPTION

[0036] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0037] (Example 1)

[0038] like Figures 1 to 5 A sandblasting system shown in the figure includes a sandblasting machine 100, a dust collector 200, a cyclone separator 300 and a sand material elevator 400. The sandblasting machine 100 includes a sandblasting machine case 1, a sand storage device 2, a sandblasting device 3 and a sand collecting device 4, wherein the sand storage device 2 and the cyclone separator 300 are fixedly installed on the top of the sandblasting machine case 1, the sandblasting device 3 and the sand collecting device 4 are arranged inside the sandblasting machine case 1 from top to bottom, the dust collector 200 is arranged on the left side of the sandblasting machine 100, and the sand material elevator 400 is arranged on the rear side of the sandblasting machine case 1, the air intake, air exhaust and sand discharge ports of the cyclone separator 300 are respectively connected to the sandblasting machine 100, the dust collector 200 and the sand collecting device 4, the inlet of the sand material elevator 400 is connected to the sand collecting device 4, and the outlet is connected to the sand storage device 2, so as to realize the recycling of sand.

[0039] The sandblasting device 3 comprises a fixed gun mount assembly 3-1 and a gun tray 3-2 circumferentially adjustable thereon. The gun tray 3-2 is annular and circumferentially arranged with multiple spray guns 3-3. These are radially adjustable and connected to the gun tray 3-2 and connect to the sand storage device 2 and external compressed air. The sandblasting housing 1 includes a feed channel extending along the axis of the gun tray 3-2, which is used to transport the pipe to be processed. When the pipe passes the axis of the gun tray 3-2, the spray guns 3-3 are activated simultaneously, achieving circumferential sandblasting. This streamlined structure improves sandblasting efficiency. To further enhance sandblasting efficiency, the present invention provides multiple sandblasting devices 3 arranged along the axis of the feed channel, thereby increasing the pipe feed rate and, consequently, improving circumferential sandblasting efficiency. The gun trays 3-2 of each sandblasting device 3 are circumferentially staggered, further enhancing the uniformity of the circumferential sandblasting of the pipe.

[0040] Specifically, the gun mount assembly 3-1 comprises a pair of parallel support rods 3-1-1 and a gun mount plate 3-1-2 connected between the two support rods 3-1-1. An arcuate slot 3-2-1 is defined in the gun tray 3-2 between adjacent spray guns 3-3. A first through-hole is defined in the area where the gun mount plate 3-1-2 and the arcuate slot 3-2-1 overlap. A locking bolt is positioned within the first through-hole, extending through the arcuate slot 3-2-1. This locking bolt, passing through the arcuate slot 3-2-1, connects the guns 3-3, enabling simultaneous circumferential adjustment and fixation of the multiple guns. The width of the gun mount plate 3-1-2 is smaller than the diameter of the gun tray 3-2. This dimensional difference between the width of the gun mount plate 3-1-2 and the diameter of the gun tray 3-2 facilitates manual adjustment by the operator when rotating and adjusting the gun tray 3-2. The support rods 3-1-1 are constructed of C-shaped channel steel, ensuring structural strength while reducing material usage and saving costs. A mounting bracket 3-1-3 is located between the support rod 3-1-1 and the gun mount plate 3-1-2. Multiple strip grooves are arranged along the length of the bracket 3-1-3 on either side. A second through-hole is located in the center of the area of ​​the support rod 3-1-1 that overlaps the strip grooves. A locking bolt extends through the second through-hole, allowing for a height-adjustable connection between the gun mount plate 3-1-2 and the support rod 3-1-1 via the mounting bracket 3-1-3. The support rod 3-1-1 facilitates the installation of the gun tray 3-2 and offers height adjustment to meet the needs of sandblasting at various heights. A connecting plate 3-1-4 is welded to the top of the support rod 3-1-1. This plate has a waist-shaped groove for easy hoisting.

[0041] The gun disc 3-2 is evenly distributed along its circumference, with the same number of strip grooves as the spray guns 3-3. A shim plate 3-4 is fixedly mounted on the gun disc 3-2, forming a slideway. Each slideway houses a matching slider 3-5, and the spray gun 3-3 is fixedly mounted on the slider 3-5. The slider 3-5 allows radial movement of the spray gun 3-3. Each shim plate 3-4 is removably fixed with a pressure plate 3-6, which presses against the slider 3-5, securing the spray gun 3-3. The overall structure is simple and easy to adjust. To maximize the radial adjustment range, the two ends of the strip groove extend to the inner and outer rings of the gun disc 3-2, respectively, to accommodate sandblasting of pipes with a wider range of diameters. A third through-hole 3-2-2, located in the gun disc 3-2, is located between adjacent spray guns 3-3. This reduces the weight of the gun disc 3-2 while conserving material and reducing costs.

[0042] A translation device 5 is provided at the bottom of the sandblasting machine housing 1. The translation device 5 includes parallel light rails 5-1, movable rollers 5-2 slidably mounted on the light rails 5-1, and a first drive motor 5-3 fixedly mounted within the sandblasting machine housing 1. A synchronous shaft 5-4 rotatably mounted on the sandblasting machine housing 1 is connected between any pair of movable rollers 5-2. The synchronous shaft 5-4 is gear-connected to the first drive motor 5-3. The provision of the translation device 5 facilitates the forward and backward adjustment of the entire machine and facilitates workshop layout.

[0043] The front of the sandblasting machine case 1, in the area corresponding to the sandblasting device 3, is provided with an openable door panel 1-1. A transparent window is provided on the door panel 1-1, and a quick-locking mechanism 6 is provided between the side and the sandblasting machine case 1. The provision of an openable door panel with a transparent window facilitates observation of the sandblasting status of the workpiece inside. A groove is provided on the side of the door panel 1-1, which is formed on the sandblasting machine case 1. The quick-locking mechanism 6 includes a cylinder 6-1 fixedly mounted in the groove. The piston rod of the cylinder 6-1 is horizontally arranged and hingedly connected to a pressure rod 6-2 at its end. The middle of the pressure rod 6-2 is hingedly connected to a connecting rod 6-3. The other end of the connecting rod 6-3 is hingedly connected to a fixing seat 6-4 fixedly mounted on the cylinder body of the cylinder 6-1 near the door panel. The expansion and contraction of the cylinder 6-1 allows the pressure rod 6-2 to press against the door panel 1-1, thereby achieving an automatic locking function. The structure is simple and reduces manual labor intensity.

[0044] Pipe limiting assemblies 7 are provided at both ends of the feed channel to ensure that the pipes conveyed are positioned at the axis of each sandblasting device 3, further ensuring uniform sandblasting. Specifically, the pipe limiting assembly 7 includes a limiting frame 7-1 that is adjustable and mounted on the sandblasting machine housing 1 in the vertical direction. A first feed roller 7-2 is fixedly provided in the middle of the bottom of the limiting frame 7-1, a second feed roller 7-3 is elastically provided longitudinally on the top, and third feed rollers 7-4 are elastically provided in the horizontal direction on both sides of the inner wall. The cross-shaped elastic roller group cooperates with each other to achieve key centered delivery.

[0045] The sand collecting device 4 includes a plurality of sand collecting hoppers 4-1 respectively arranged below the sand blasting device 1 and a first auger 4-2 connected to the bottom of the plurality of sand collecting hoppers 4-1. The end of the first auger 4-2 is vertically connected to a second auger 4-3. The end of the second auger 4-3 is connected to the entrance of the sand elevator 400, so that the waste sand is gathered and transported to the sand storage device 2 again for recycling.

[0046] In this embodiment, pipes are fed from a feed channel and conveyed axially. After passing through multiple blasting devices capable of achieving uniform circumferential blasting, rapid sandblasting is achieved. This changes the existing circumferential sandblasting method, eliminating the need for a complex conveying mechanism. By providing a sandblasting device with multiple circumferentially distributed spray guns, the outer circumference of the pipes is uniformly sandblasted, resulting in a simple structure and improved sandblasting efficiency. Waste sand is returned to the sand storage device 2 via the sand collection device 4 and the sand material elevator 400 for recycling. A dust collector is also provided to ensure a good environment throughout the workshop.

[0047] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sandblasting machine, characterized in that: The invention comprises a sandblasting machine box, a sand storage device installed on the top of the sandblasting machine box, and a sandblasting device and a sand collecting device arranged inside the sandblasting machine box from top to bottom. The sandblasting device comprises a fixed gun rack mounting assembly and a gun disc adjustably arranged on the gun rack mounting assembly along the circumferential direction. The gun disc is a circular ring structure and a plurality of spray guns are evenly arranged along the circumferential direction. The sandblasting machine box is provided with a feed channel running through the left and right sides along the axial direction of the gun disc. The spray gun is adjustably installed on the gun disc along the radial direction and is connected with the sand storage device and external compressed air.

2. A sandblasting machine according to claim 1, characterized in that: The sandblasting devices are arranged in a plurality along the axial direction of the feed channel.

3. A sandblasting machine according to claim 2, characterized in that: The gun discs of the plurality of sandblasting devices are staggeredly arranged along the circumferential direction.

4. A sandblasting machine according to claim 1, characterized in that: The gun disc is evenly distributed with strip grooves corresponding to the spray gun along the circumferential direction, and pads fixedly mounted on the gun disc are symmetrically and parallelly arranged on both sides of the strip groove to form a slide groove, and a matching slider is arranged in the slide groove, the spray gun is fixedly mounted on the slider, and a pressure plate tightly pressed on the slider is detachably fixed on the pad.

5. A sandblasting machine according to claim 1, characterized in that: Pipe limiting assemblies are provided at both ends of the feed channel, and the pipe limiting assemblies include a limiting frame that can be adjusted along the vertical direction and mounted on the sandblasting machine box, a first feeding roller is fixedly provided in the middle of the bottom of the limiting frame, a second feeding roller is elastically provided on the top along the longitudinal direction, and third feeding rollers are elastically provided on the inner walls on both sides along the horizontal direction and are relatively arranged.

6. A sandblasting machine according to claim 1, characterized in that: A translation device is provided at the bottom of the sandblasting machine case, and the translation device includes parallel light rails, moving rollers slidably mounted on the light rails, and a first drive motor fixedly mounted in the sandblasting machine case. A synchronous shaft rotatably mounted on the sandblasting machine case is connected between any pair of moving rollers, and the synchronous shaft is connected to the first drive motor through a gear transmission.

7. A sandblasting machine according to claim 1, characterized in that: An openable door panel is provided at an area on the front of the sandblasting machine box corresponding to the sandblasting device. A transparent window is provided on the door panel, and a quick locking mechanism is provided between the side surface and the sandblasting machine box.

8. A sandblasting machine according to claim 7, characterized in that: The side of the door panel is provided with a groove opened on the sandblasting machine box, and the quick locking mechanism includes a cylinder fixedly installed in the groove, the piston rod of the cylinder is horizontally arranged and the end is hinged with a pressure rod, the middle part of the pressure rod is hinged with a connecting rod, and the other end of the connecting rod is hinged with a fixing seat fixedly installed on the cylinder body of the cylinder close to the door panel.

9. A sandblasting system, characterized in that: It comprises a dust collector and a sandblasting machine as claimed in any one of claims 2 to 8, wherein a cyclone separator is provided on the top of the sandblasting machine, and a sand elevator is provided on the side, the air suction port, the air exhaust port and the sand discharge port of the cyclone separator are respectively connected to the sandblasting machine, the dust collector and the sand collecting device, the inlet of the sand elevator is connected to the sand collecting device, and the outlet is connected to the sand storage device.

10. A sandblasting system according to claim 9, characterized in that: The sand collecting device comprises a plurality of sand collecting hoppers respectively arranged below the sand blasting device and a first auger connecting the bottoms of the plurality of sand collecting hoppers, the end of the first auger is vertically connected to a second auger, and the end of the second auger is connected to the inlet of a sand material elevator.

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