Adjustable cylindrical sand blasting machine

Abstract

The present invention relates to the technical field of sandblasting machines, specifically to an adjustable cylinder sandblasting machine, which includes a grinding structure and a driving structure. The grinding structure includes a grinding bracket, a grinding cylinder, and a shifting assembly. The grinding cylinder is rotatably and movably arranged on the grinding bracket, and a sanding surface for installing sandblasting consumables is arranged on the outer side of the grinding cylinder; a positioning part that rotates with the grinding cylinder is also arranged on the grinding cylinder, and a plurality of shifting grooves are arranged on the positioning part. The shifting assembly is adapted to the plurality of shifting grooves, and the shifting assembly is movably arranged on the grinding bracket. When the shifting assembly moves on the grinding bracket to any shifting groove to abut against the shifting groove, the grinding cylinder is locked on the grinding bracket; and the grinding bracket is fixedly arranged on the driving structure. In the present invention, 360-degree rotation shifting without dead angles can be performed, which effectively improves the use efficiency of sandblasting consumables, eliminates the waste of production consumables, and saves costs.

Description

Technical Field

[0001] The invention relates to the technical field of sand blasting machines, in particular to an adjustable cylindrical sand blasting machine. Background Art

[0002] Pneumatic flat sandblasters are widely used in product polishing situations. When polishing a narrow and long product surface, when using a traditional flat sandblaster, the sandpaper is larger than the product, and the flexible sandpaper is concave under pressure, wrapping the product, causing the product edge to be over-polished and rounded or collapsed. In order to improve the processing yield of such products, we designed a circular surface sandblaster. When working, the contact surface between the sandpaper and the product is a narrow strip. By controlling the grinding force and time of different areas of the product, the quality of the product edge grinding can be well controlled. The contact area between the sandpaper and the product of the circular surface sandblaster is small, and the local wear of the sandpaper is fast, so the sandpaper needs to be replaced frequently.

[0003] Therefore, the prior art has designed a new type of adjustable arc sandblasting machine (application number CN202010754501.4), and the adjusting component includes a rotating rod, a sliding groove is opened inside the rotating rod, and the two sliding grooves are internally clamped with a locking pin. Under the action of the spring force, the locking pin enters the track locking groove to lock the tile, and the locking pin is pressed down. The floating pin compresses the spring to support the rotating core shaft so that the locking pin is in a suspended state, thereby reducing the rotation resistance. One side of the rotating rod is movably connected with an arc rotating tile by a screw, and the outer arc surface of the arc rotating tile is affixed with Velcro. Compared with the flat sandblasting machine, the arc surface design makes the surface where the sandpaper contacts the product a narrow strip, and the sandpaper fits the processed surface more closely, and there is no edge collapse, thereby greatly increasing the yield rate of the product. However, there are certain limitations on the gear setting of the circular arc rotating tile of the sand blasting machine, resulting in a large waste of sand blasting sheet consumables; and the center of gravity of only one gear of the circular arc rotating tile of the sand blasting machine coincides with the center of gravity of the entire product, and the remaining gears have eccentricity problems, which will reduce the life of the product. Summary of the invention

[0004] In order to solve the above problems, the primary purpose of the present invention is to provide an adjustable drum sand blasting machine, which can effectively improve the use efficiency of sand blasting consumables, eliminate the waste of production consumables, and effectively save costs.

[0005] Another object of the present invention is to provide an adjustable cylindrical sand blasting machine, wherein the overall center of gravity of the sand blasting machine does not change during use, and the sand blasting machine has better stability and longer service life.

[0006] In order to achieve the above object, the technical solution of the present invention is as follows.

[0007] A kind of adjustable cylinder sand blasting machine, which includes a grinding structure and a driving structure for driving the grinding structure to oscillate and vibrate for grinding, and is characterized in that the grinding structure includes a grinding bracket, a grinding cylinder, and a shifting assembly, the grinding cylinder is rotatably and movably arranged on the grinding bracket, and a sanding surface for installing sanding consumables is arranged on the outer side of the grinding cylinder; the grinding cylinder is also provided with a positioning part that rotates with the grinding cylinder, and a plurality of shifting grooves are arranged on the positioning part, and the shifting assembly is adapted to the plurality of shifting grooves, and the shifting assembly is movably arranged on the grinding bracket, and when the shifting assembly moves on the grinding bracket to any shifting groove to abut against the shifting groove, the grinding cylinder is locked on the grinding bracket; and the grinding bracket is fixedly arranged on the driving structure.

[0008] When the grinding structure is installed on the driving structure for use, the sanding consumables are installed on the sanding surface. At this time, the shift assembly is held in a shift groove, the grinding cylinder is locked on the grinding bracket, and the sandblasting machine drives the grinding structure to eccentrically vibrate through the driving structure to perform grinding work; and when grinding based on the grinding cylinder, the surface in contact with the product is a narrow strip, there is no edge collapse, and the sandpaper fits the processing surface more closely; and when the position of the sanding consumables needs to be adjusted for continued grinding, the driving structure stops working and controls the shift. The component moves on the polishing bracket to make the shift component disengage from the current shift slot; the polishing cylinder is controlled to rotate on the polishing bracket to adjust the position of the sandblasting consumables. When it rotates to the next shift slot corresponding to the shift component, the shift component is controlled to move on the polishing bracket so that the shift component moves into the shift slot to abut against the shift slot, and the polishing cylinder is locked on the polishing bracket again to achieve the shift adjustment position of the sandblasting consumables, and then the drive structure continues to work so that the sandblasting consumables can continue to polish the product. Compared with the prior art, the shift adjustment of the polishing cylinder can perform 360-degree rotation shifting without dead angles, which can effectively improve the use efficiency of sandblasting consumables, eliminate the waste of production consumables, and effectively save costs.

[0009] Furthermore, the driving structure includes a motor and an eccentric shaft, one end of the eccentric shaft is fixedly arranged on the motor output shaft, and the other end of the eccentric shaft is connected to the grinding bracket.

[0010] Furthermore, the driving structure also includes a housing, the motor is fixedly arranged in the housing, the grinding bracket is located above the housing, and two groups of rubber strips are fixedly arranged at the left and right ends of the housing, and the upper ends of the two groups of rubber strips are respectively fixed to the left and right ends of the grinding bracket. When the motor drives the eccentric shaft to rotate, the grinding bracket is driven to perform yaw vibration under the combined action of the pulling force of the eccentric shaft and the rubber strips.

[0011] Furthermore, the side surface of the shell is provided with an exhaust silencer hole and an air inlet hole which penetrate into the interior of the shell.

[0012] Furthermore, the grinding cylinder rotates around its own axis. Since the grinding cylinder rotates around its own axis, its center of gravity will not change when the grinding cylinder rotates and shifts gears. The center of gravity of the grinding cylinder can be made to coincide with the center of gravity of the sandblasting machine as a whole when any gear shifting (different gear shifting slots are different gears, and the gear shifting component is changed from one gear slot to another) occurs; when the sandblasting machine is in use, the center of gravity of the sandblasting machine as a whole will not change, and the stability is better and the service life is longer.

[0013] Furthermore, the positioning portion is an annular structure arranged around the grinding cylinder, and a plurality of the shift grooves are evenly arranged on the positioning portion.

[0014] Furthermore, the shift assembly includes an elastic body and a shift member, one end of the elastic body is connected to the grinding bracket, and the other end of the elastic body is connected to the shift member, and the shift member is adapted to multiple shift slots. When the positioning part rotates to a position corresponding to any shift slot and the shift member, the elastic body drives the shift member to abut against the shift slot; when the shift member abuts against the shift slot, the shift member is pressed down to compress the elastic body and detach from the shift slot. The elastic body is an elastic structure, which is a prior art, such as using gas springs, springs and other structures to achieve.

[0015] Furthermore, the grinding bracket includes a left bracket and a right bracket, and the two ends of the grinding cylinder are rotatably arranged on the left bracket and the right bracket respectively; and positioning parts are arranged at both ends of the grinding cylinder. The arrangement of the left bracket and the right bracket makes the installation of the grinding cylinder more stable.

[0016] Furthermore, the left bracket and the right bracket are respectively rotatably sleeved on the two ends of the grinding cylinder, and the grinding cylinder is provided with a locking through hole penetrating the grinding cylinder, and the positioning parts at both ends of the grinding cylinder are both located in the locking through hole; the left bracket and the right bracket are both provided with a shift cavity, and the number of the elastomers is two, and the two elastomers are respectively arranged in the shift cavity of the left bracket and the right bracket, and one end of the two elastomers is respectively connected to the left bracket and the right bracket, and the shift member passes through the shift cavity of the left bracket, the locking through hole and the shift cavity of the right bracket in turn, and the two ends of the shift member are respectively movably arranged in the shift cavity of the left bracket and the shift cavity of the right bracket, and the two ends of the shift member are respectively connected to the other ends of the two elastomers, and the positioning parts at both ends of the grinding cylinder correspond to the shift member.

[0017] Furthermore, a mounting groove is provided at the lower side of the shift cavity, the lower end of the elastic body is arranged in the mounting groove, and the upper end of the elastic body extends into the shift cavity to be connected with the shift member.

[0018] Furthermore, the polishing bracket also includes a base, and the left bracket and the right bracket are both fixedly arranged on the base.

[0019] Furthermore, a Velcro strip for sticking sandblasting consumables is fixedly provided on the sandblasting surface.

[0020] The beneficial effect of the present invention is that, compared with the prior art, in the present invention, through the gear shift adjustment of the grinding cylinder, 360-degree rotation gear shift without dead angle can be performed, which can effectively improve the use efficiency of sandblasting consumables, eliminate the waste of production consumables, and effectively save costs. And the center of gravity of the grinding cylinder at any gear shift can coincide with the center of gravity of the entire sandblasting machine; so that when the sandblasting machine is in use, the center of gravity of the entire sandblasting machine will not change, and the stability is better and the service life is longer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is an exploded view of the present invention.

[0023] Figure 3 It is a structural diagram of a grinding structure.

[0024] Figure 4 This is an exploded view of the polished structure.

[0025] Figure 5 It is a schematic diagram of the grinding structure with the grinding cylinder hidden. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] See also Figure 1-5 , an adjustable cylinder sand blasting machine, the sand blasting machine comprises a grinding structure 1 and a driving structure 2 for driving the grinding structure 1 to eccentrically vibrate for grinding, characterized in that the grinding structure 1 comprises a grinding bracket 11, a grinding cylinder 12, and a shifting assembly 13, the grinding cylinder 12 is rotatably and movably arranged on the grinding bracket 11, and a sanding surface 124 for installing sanding consumables is arranged on the outer side of the grinding cylinder 12; the grinding cylinder 12 is also provided with a positioning portion 121 that rotates with the grinding cylinder 12, and a plurality of shifting grooves 122 are arranged on the positioning portion 121, and the shifting assembly 13 is adapted to the plurality of shifting grooves 122, and the shifting assembly 13 is movably arranged on the grinding bracket 11, and when the shifting assembly 13 moves to any shifting groove 122 on the grinding bracket 11, the grinding cylinder 12 is locked on the grinding bracket 11.

[0028] Furthermore, the grinding cylinder 12 rotates around its own axis.

[0029] Furthermore, a Velcro strip for sticking sandblasting consumables is fixedly provided on the sandblasting surface 124 .

[0030] Furthermore, the positioning portion 121 is an annular structure surrounding the polishing cylinder 12 , and the plurality of shift grooves 122 are evenly arranged on the positioning portion 121 .

[0031] Furthermore, the shift assembly 13 includes an elastomer 131 and a shift member 132, one end of the elastomer 131 is connected to the grinding bracket 11, and the other end of the elastomer 131 is connected to the shift member 132, and the shift member 132 is adapted to multiple shift slots 122. When the positioning portion 121 rotates to a position corresponding to any shift slot 122 and the shift member 132, the elastomer 131 drives the shift member 132 to make the shift member 132 abut against the shift slot 122; when the shift member 132 abuts against the shift slot 122, the shift member 132 is pressed down to compress the elastomer 131 and disengage from the shift slot 122.

[0032] Furthermore, the polishing bracket 11 includes a left bracket 111 and a right bracket 112 , and both ends of the polishing cylinder 12 are rotatably disposed on the left bracket 111 and the right bracket 112 ; and both ends of the polishing cylinder 12 are provided with positioning parts 121 .

[0033] Furthermore, the left bracket 111 and the right bracket 112 are rotatably sleeved on the two ends of the grinding cylinder 12, respectively. The grinding cylinder 12 is provided with a locking through hole 123 that penetrates the grinding cylinder 12, and the positioning parts 121 at both ends of the grinding cylinder 12 are located in the locking through hole 123; the left bracket 111 and the right bracket 112 are both provided with a shift cavity 113, and the number of the elastic bodies 131 is two, and the two elastic bodies 131 are respectively provided in the shift cavity 113 of the left bracket 111 and the right bracket 112, and the two elastic bodies 131 are respectively provided in the shift cavity 113 of the left bracket 111 and the right bracket 112, and the two elastic bodies 131 are respectively provided in the shift cavity 113 of the left bracket 111 and the right bracket 112. One end of each elastic body 131 is connected to the left bracket 111 and the right bracket 112 respectively, and the shift member 112 passes through the shift cavity 113 of the left bracket 111, the locking through hole 123 and the shift cavity 113 of the right bracket 112 in sequence. The two ends of the shift member 132 are movably arranged in the shift cavity 113 of the left bracket 111 and the shift cavity 113 of the right bracket 112 respectively, and the two ends of the shift member 132 are connected to the other ends of the two elastic bodies 131 respectively, and the positioning parts 121 at both ends of the grinding cylinder 12 correspond to the shift member 132.

[0034] Furthermore, a mounting groove 114 is provided at the lower side of the shift cavity 113, the lower end of the elastic body 131 is disposed in the mounting groove 114, and the upper end of the elastic body 131 extends into the shift cavity 113 and is connected to the shift member 132. Specifically, the elastic body 131 may be supported on the shift member 132, or may be fixed on the shift member 132.

[0035] Furthermore, the polishing bracket 11 also includes a base 115 , and the left bracket 111 and the right bracket 112 are both fixedly disposed on the base 115 .

[0036] Furthermore, the driving structure 2 includes a motor 21 and an eccentric shaft 22, one end of the eccentric shaft 22 is fixedly arranged on the output shaft of the motor 21, and the other end of the eccentric shaft 22 is connected to the base 115. A rotating shaft 116 is fixed to the lower end of the base 115, and a rotating groove 221 is arranged at the axis center of the other end of the eccentric shaft 22. The rotating shaft 116 is rotatably arranged in the rotating groove 221, and a deflection part 222 is fixedly arranged on the side of the rotating groove 221 at the other end of the eccentric shaft, and the deflection part 222 is connected to the base 115; when the motor drives the eccentric shaft to rotate, the eccentric shaft rotates around the rotating shaft 116, and the deflection part drives the base to move.

[0037] Furthermore, the driving structure 2 also includes a housing 23, the motor 21 is fixedly disposed in the housing 23, the base 115 is located above the housing 23, and two groups of rubber strips 24 are fixedly disposed at the left and right ends of the housing 23, and the upper ends of the two groups of rubber strips 24 are respectively fixed to the left and right ends of the base 115. When the motor 21 drives the eccentric shaft 22 to rotate, the base 115 is driven to perform yaw vibration under the combined action of the pulling force of the eccentric shaft 22 and the rubber strips 24.

[0038] Furthermore, the side of the shell 23 is provided with an exhaust silencer hole 231 and an air inlet hole 232 which penetrate into the interior of the shell 23 .

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An adjustable cylindrical sand blasting machine, comprising a grinding structure and a driving structure for driving the grinding structure to oscillate and vibrate for grinding, characterized in that: The grinding structure includes a grinding bracket, a grinding cylinder, and a shifting assembly. The grinding cylinder is rotatably and movably arranged on the grinding bracket, and a sanding surface for installing sanding consumables is arranged on the outer side of the grinding cylinder; the grinding cylinder is also provided with a positioning part that rotates with the grinding cylinder, and a plurality of shifting grooves are arranged on the positioning part. The shifting assembly is adapted to the plurality of shifting grooves, and the shifting assembly is movably arranged on the grinding bracket. When the shifting assembly moves on the grinding bracket to any shifting groove to abut against the shifting groove, the grinding cylinder is locked on the grinding bracket; and the grinding bracket is fixedly arranged on the driving structure.

2. The adjustable drum sand blasting machine according to claim 1, characterized in that: The grinding cylinder rotates around its own axis.

3. The adjustable drum sand blasting machine according to claim 1, characterized in that: The positioning portion is an annular structure arranged around the grinding cylinder, and a plurality of shift grooves are evenly arranged on the positioning portion.

4. The adjustable drum sand blasting machine according to claim 1, characterized in that: The shift assembly includes an elastomer and a shift member, one end of the elastomer is connected to the grinding bracket, and the other end of the elastomer is connected to the shift member, and the shift member is adapted to multiple shift slots. When the positioning portion is rotated to a position corresponding to any shift slot and the shift member, the elastomer drives the shift member to abut against the shift slot; when the shift member abuts against the shift slot, the shift member is pressed down to compress the elastomer and disengage from the shift slot.

5. The adjustable drum sand blasting machine according to claim 4, characterized in that: The grinding bracket comprises a left bracket and a right bracket, and the two ends of the grinding cylinder are rotatably arranged on the left bracket and the right bracket respectively; and positioning parts are arranged on both ends of the grinding cylinder.

6. The adjustable drum sand blasting machine according to claim 5, characterized in that: The left bracket and the right bracket are respectively rotatably sleeved on the two ends of the grinding cylinder, and a locking through hole penetrating the grinding cylinder is provided in the grinding cylinder, and the positioning parts at the two ends of the grinding cylinder are both located in the locking through hole; the left bracket and the right bracket are both provided with a shift cavity, and there are two elastomers, which are respectively arranged in the shift cavities of the left bracket and the right bracket, and one end of the two elastomers is respectively connected to the left bracket and the right bracket, and the shift member passes through the shift cavity, the locking through hole and the shift cavity of the right bracket in turn, and the two ends of the shift member are respectively movably arranged in the shift cavity of the left bracket and the shift cavity of the right bracket, and the two ends of the shift member are respectively connected to the other ends of the two elastomers, and the positioning parts at both ends of the grinding cylinder correspond to the shift member.

7. The adjustable drum sand blasting machine according to claim 6, characterized in that: A mounting groove is arranged at the lower side of the shift cavity, the lower end of the elastic body is arranged in the mounting groove, and the upper end of the elastic body extends into the shift cavity and is connected with the shift member.

8. The adjustable drum sand blasting machine according to claim 6, characterized in that: The polishing bracket also includes a base, and the left bracket and the right bracket are both fixedly arranged on the base.

9. The adjustable drum sand blasting machine according to claim 1, characterized in that: The sandblasting surface is fixedly provided with a Velcro for sticking sandblasting consumables.

10. The adjustable drum sand blasting machine according to claim 1, characterized in that: The driving structure includes a motor and an eccentric shaft, one end of the eccentric shaft is fixedly arranged on the motor output shaft, and the other end of the eccentric shaft is connected to the grinding bracket; The driving structure also includes a shell, the motor is fixedly arranged in the shell, the polishing bracket is located above the shell, and two groups of rubber strips are fixedly arranged at the left and right ends of the shell, and the upper ends of the two groups of rubber strips are respectively fixed to the left and right ends of the polishing bracket.

Images