Plastic bucket inner wall polishing device

Abstract

The utility model relates to the technical field of barrel wall polishing, in particular to a plastic barrel inner wall polishing device which comprises a bottom plate and a polishing mechanism, a clamping mechanism is arranged above the bottom plate, the polishing mechanism is located below the clamping mechanism, and the polishing mechanism comprises a polishing structure and a lifting structure used for driving the polishing structure to move up and down. A barrel body is arranged above the polishing plate, and a lining structure used for lining the outer wall of the barrel body when the inner wall of the barrel body is polished is arranged at the lower end of the barrel body. The polishing device has the beneficial effects that when the inner wall of the barrel body is polished, the lining structure is moved to the polishing position and changes along with the change of the polishing position, so that certain supporting force is continuously applied to the polishing position of the outer wall of the barrel body, the effect of lining the polishing position is achieved, and then the phenomenon that the outer wall is deformed and even broken when the inner wall of the barrel body is polished is prevented; therefore, the polishing quality of the polishing structure on the inner wall of the barrel body is improved, the phenomenon of damage is reduced, and the production quality of the barrel body is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to barrel wall polishing technical field especially relates to a plastic bucket inner wall polishing device. BACKGROUND

[0002] The material of the plastic bucket is mostly polyethylene, polypropylene and other plastic blow molding, injection molding, has good characteristics for special dangerous goods packaging, has the characteristics of not easy to break, not rust, light weight, is widely used in various fields, and in the plastic bucket production and processing process, the inner wall needs to be polished by the usual polishing device before entering the inventory.

[0003] Through the comparison patent announcement no. CN222371110U, a kind of plastic bucket inner wall polishing device, in this scheme, plastic bucket is clamped and fixed using three-jaw chuck, it is convenient for automatic polishing of polishing mechanism, during polishing process, plastic bucket is not easy to deviate, again, support round table is rotated by the output shaft of rotary motor, plastic bucket can be rotated, so that the polishing mechanism can polish the inner wall of plastic bucket all-round, but, in the process of polishing plastic bucket, since the material of plastic bucket is relatively fragile, if the inner wall is polished too hard, plus plastic bucket outer wall does not have the structure of pad, it is possible to cause plastic bucket to appear deformation phenomenon, even break, cause damage to plastic bucket, reduce the production quality. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of plastic bucket inner wall polishing devices to solve the above problems.

[0005] The utility model achieves the above-mentioned purposes by the following technical solutions:

[0006] A kind of plastic bucket inner wall polishing device, including bottom plate, clamping mechanism is provided in bottom plate upper, further include the polishing mechanism for the inner wall of plastic bucket is polished, and the polishing mechanism is located below clamping mechanism;

[0007] The polishing mechanism includes a polishing structure for polishing the inner wall of the plastic bucket, and a lifting structure for driving the polishing structure to move up and down.

[0008] The polishing structure includes a rotating shaft that can move up and down above the bottom plate, a rotary motor is provided at the rotating end of the rotating shaft, the output end of the rotary motor is fixed to the rotating end of the rotating shaft through a shaft coupling, a plurality of fixed frames are fixed to the top end of the rotating shaft, the fixed frames are distributed around the center of the rotating shaft, a polishing plate is slidably installed inside the fixed frame, a pre-tightening spring is connected between the polishing plate and the fixed frame, a plurality of sliding grooves are formed around the side wall of the rotating shaft, a sliding seat that moves up and down is slidably installed in the sliding groove, a compression spring is connected between the sliding seat and the sliding groove, a rotating plate is rotatably arranged between the sliding seat and the polishing plate, a barrel body is provided above the polishing plate, and a pad structure is provided at the lower end of the barrel body to pad the outer wall of the barrel body during polishing of the inner wall of the barrel body.

[0009] Preferably, the cushion structure comprises a sliding ring movably arranged below the barrel, a plurality of connecting frames are fixedly arranged on the inner wall of the sliding ring, a mounting groove is fixedly arranged above the connecting frames and close to the center of the barrel, a detachable cushion plate is mounted in the mounting groove, a plurality of locking bolts are mounted between the cushion plate and the mounting groove, and a guide structure is arranged in the connecting frame to drive the polishing plate to move towards the inside of the barrel.

[0010] Preferably, the guide structure comprises a guide block slidingly arranged at one end of the connecting frame close to the center of the barrel, a pneumatic cylinder is arranged between the guide block and the connecting frame, the end of the guide block close to the barrel is beveled, and the lower side of the guide block is small.

[0011] Preferably, the lifting structure comprises two sliding frames arranged at the upper end of the bottom plate, a lead screw is rotatably arranged in the sliding frame, a lifting motor is arranged at the rotating end of the lead screw, the output end of the lifting motor is fixed to the rotating end of the lead screw through a shaft coupling, a lifting plate is slidingly arranged between the two sliding frames, the lifting plate is threadedly connected to the lead screw, two vertically arranged top plates are arranged on the lifting plate, and a rotating shaft is rotatably connected to the lifting plate.

[0012] Preferably, the clamping mechanism comprises a fixed disc fixedly arranged between the upper ends of the two sliding frames, a plurality of upper wedge blocks are slidingly arranged at the lower end of the fixed disc, the upper wedge blocks are distributed around the center of the barrel, a tension spring is connected between the upper wedge block and the fixed disc, a clamping block is fixedly arranged at the end of the upper wedge block close to the barrel, a fixed ring is arranged below the upper wedge block, a plurality of lower wedge blocks are fixedly arranged around the upper end of the fixed ring, the side close to each other of the upper wedge block and the lower wedge block is beveled and slidingly matched, and a plurality of electric push rods are arranged between the fixed ring and the fixed disc.

[0013] Preferably, a return spring is connected between the sliding ring and the sliding frame, the sliding ring is slidingly connected to the sliding frame, and the sliding ring is slidingly matched to the lead screw.

[0014] Preferably, a plurality of rolling balls are rotatably arranged at the end of the cushion plate close to the barrel.

[0015] Compared with the prior art, the beneficial effects are as follows:

[0016] When polishing the inner wall of the barrel, the cushion structure is moved to the polishing position, which changes with the change of the polishing position. Thus, a certain supporting force is continuously applied to the polishing position of the outer wall of the barrel, the cushion effect is achieved on the polishing position, and the phenomenon of deformation or even rupture of the outer wall during polishing of the inner wall of the barrel is prevented. Thus, the polishing quality of the polishing structure on the inner wall of the barrel is improved, the phenomenon of damage is reduced, and the quality of the barrel produced is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor under the premise of the drawings.

[0018] Figure 1 is a space perspective view of the plastic barrel inner wall polishing device of the present application;

[0019] Figure 2 is a structural sectional view of the sliding frame inside the plastic barrel inner wall polishing device of the present application;

[0020] Figure 3 is Figure 2 is a local enlarged view of A in the figure;

[0021] Figure 4 is Figure 2 is a local enlarged view of B in the figure;

[0022] Figure 5 is a structural schematic view of the clamping mechanism of the plastic barrel inner wall polishing device of the present application.

[0023] The following is the explanation of the reference signs:

[0024] 100, bottom plate; 201, sliding frame; 202, lead screw; 203, lifting motor; 204, lifting plate; 205, rotating shaft; 206, rotating motor; 207, fixed frame; 208, polishing plate; 209, sliding groove; 210, sliding seat; 211, rotating plate; 212, connecting frame; 213, guide block; 214, air cylinder; 215, pad plate; 216, ball; 217, top plate; 218, sliding ring; 219, mounting groove; 301, fixed disc; 302, upper wedge block; 303, lower wedge block; 304, fixed ring; 305, clamping block; 306, electric push rod; 400, barrel body. DETAILED DESCRIPTION

[0025] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] The present application will be further described below in conjunction with the drawings:

[0027] As Figures 1-5 shown in the drawings, a plastic bucket inner wall polishing device, comprising a bottom plate 100, a clamping mechanism for clamping and fixing the plastic bucket, the clamping mechanism is located above the bottom plate 100, further comprising a polishing mechanism for polishing the inner wall of the plastic bucket, the polishing mechanism is located below the clamping mechanism.

[0028] In this embodiment: the polishing mechanism comprises a polishing structure for polishing the inner wall of the plastic bucket, a lifting structure for driving the polishing structure to move up and down.

[0029] The lifting structure comprises two sliding frames 201 arranged at the upper end of the bottom plate 100, a lead screw 202 is rotatably installed inside the sliding frame 201, a lifting motor 203 is installed at the rotating end of the lead screw 202, the output end of the lifting motor 203 is fixed to the rotating end of the lead screw 202 through a shaft coupling, a lifting plate 204 is slidingly installed between the two sliding frames 201, and the lifting plate 204 is threadedly connected with the lead screw 202.

[0030] The polishing structure comprises a rotating shaft 205 rotatably arranged at the upper end of the lifting plate 204, a rotating motor 206 is arranged at the rotating end of the rotating shaft 205, the output end of the rotating motor 206 is fixed to the rotating end of the rotating shaft 205 through a shaft coupling, a plurality of fixed frames 207 are fixed to the top end of the rotating shaft 205, the plurality of fixed frames 207 are distributed around the center of the rotating shaft 205, a polishing plate 208 is slidingly installed inside the fixed frame 207, a pre-tightening spring is connected between the polishing plate 208 and the fixed frame 207, a plurality of sliding grooves 209 are formed around the side wall of the rotating shaft 205, a sliding seat 210 moving up and down is slidingly installed in the sliding groove 209, a compression spring is connected between the sliding seat 210 and the sliding groove 209, a rotating plate 211 is rotatably arranged between the sliding seat 210 and the polishing plate 208, a barrel 400 is arranged above the polishing plate 208, and a cushioning structure for cushioning the outer wall of the barrel 400 when polishing the inner wall of the barrel 400 is arranged at the lower end of the barrel 400.

[0031] The cushioning structure comprises a sliding ring 218 arranged below the barrel 400, a return spring is connected between the sliding ring 218 and the sliding frame 201, the sliding ring 218 is slidingly connected with the sliding frame 201, the sliding ring 218 is slidingly connected with the lead screw 202, a plurality of connecting frames 212 are fixed around the inner wall of the sliding ring 218, a mounting groove 219 is fixed above the plurality of connecting frames 212 and close to the center of the barrel 400, a detachable cushion plate 215 is installed in the mounting groove 219, a plurality of locking bolts are installed between the cushion plate 215 and the mounting groove 219, a plurality of ball bearings 216 are rotatably arranged at one end of the cushion plate 215 close to the barrel 400, two vertically arranged top plates 217 are arranged on the lifting plate 204, and a guide structure for driving the polishing plate 208 to move towards the inside of the barrel 400 is arranged inside the connecting frame 212.

[0032] The guide structure comprises a guide block 213 slidingly installed at one end of the connecting frame 212 close to the center of the barrel body 400, and a pneumatic cylinder 214 is arranged between the guide block 213 and the connecting frame 212. The guide block 213 is beveled at one end close to the barrel body 400, and the lower side of the guide block 213 is a small end. When polishing the inner wall of the barrel body 400, the cushioning structure is moved to the polishing position, which changes with the change of the polishing position. Thus, a certain supporting force is continuously applied to the polishing position of the outer wall of the barrel body 400, achieving the effect of cushioning the polishing position, thereby preventing the outer wall from deforming or even breaking during polishing of the inner wall of the barrel body 400. Thus, the polishing quality of the polishing structure on the inner wall of the barrel body 400 is improved, the damage phenomenon is reduced, and the quality of the barrel body 400 is improved.

[0033] In the embodiment, the clamping mechanism comprises a fixed disc 301 fixedly arranged between the upper ends of the two sliding frames 201, a plurality of upper wedge blocks 302 slidingly installed at the lower end of the fixed disc 301, the plurality of upper wedge blocks 302 being distributed around the center of the barrel body 400, a tension spring connected between the upper wedge block 302 and the fixed disc 301, a clamping block 305 fixed to one end of the upper wedge block 302 close to the barrel body 400, a fixed ring 304 arranged below the upper wedge block 302, a plurality of lower wedge blocks 303 annularly fixed to the upper end of the fixed ring 304, the mutually close sides of the lower wedge block 303 and the upper wedge block 302 being beveled and slidingly matched with each other, and a plurality of electric push rods 306 arranged between the fixed ring 304 and the fixed disc 301.

[0034] Working principle: first, place the bottom end of the barrel body 400 on the bottom end of the fixed disc 301, then start the plurality of electric push rods 306 to drive the fixed ring 304 to move upward, drive the plurality of lower wedge blocks 303 to move upward and be pressed against the plurality of upper wedge blocks 302, drive the plurality of upper wedge blocks 302 to drive the clamping block 305 to move close to the outer wall of the barrel body 400, clamp and fix the outer wall of the barrel body 400, then start the lifting motor 203 to drive the lead screw 202 to rotate, drive the lifting plate 204 to move upward, drive the plurality of polishing plates 208 above the rotating shaft 205 to move upward, then start the pneumatic cylinder 214 to drive the guide block 213 to move outward and below the barrel body 400. When the plurality of polishing plates 208 continue to move upward, they will be pressed against and contacted with the beveled surface of the guide block 213. The beveled surface of the guide block 213 will cause the polishing plates 208 in the process of moving upward to shrink toward the center of the rotating shaft 205, and then the plurality of polishing plates 208 will be gathered. After the rotating shaft 205 continuously drives the plurality of polishing plates 208 to move upward, the plurality of polishing plates 208 will move to the inside of the barrel body 400.

[0035] When the polishing plate 208 is separated from the mutual extrusion of the guide block 213, the plurality of polishing plates 208 will be urged to extend outwardly again and contact the inner wall of the barrel 400 under the force of the pre-tightening spring, and then the rotating motor 206 is started to drive the rotating shaft 205 to rotate, thereby driving the plurality of polishing plates 208 to rotate and polish the inner wall of the barrel 400. When the lifting plate 204 moves upward, the top plate 217 will move upward, and when the top end of the top plate 217 contacts the connecting frame 212, the continued upward movement of the top plate 217 will drive the connecting frame 212 to move upward, thereby driving the backing plate 215 to move upward. The backing plate 215 will move upward synchronously with the plurality of polishing plates 208, and both are at the same horizontal height, so that the backing plate 215 will continuously exert a certain supporting force on the polishing position of the outer wall of the barrel 400, thereby achieving the effect of padding the polishing position, thereby preventing the phenomenon of deformation or even rupture of the outer wall during polishing of the inner wall of the barrel 400, thereby improving the polishing quality of the polishing structure on the inner wall of the barrel 400, reducing the phenomenon of damage, and improving the quality of the barrel 400 production.

[0036] The plurality of balls 216 arranged can reduce the friction between the backing plate 215 and the outer wall of the barrel 400, facilitating the smooth upward and downward movement of the backing plate 215. If different diameter barrels 400 are to be processed, the plurality of locking bolts are unscrewed, and then the backing plate 215 is removed. The same diameter backing plate 215 is installed in the mounting groove 219 again, and the plurality of locking bolts are locked, thereby realizing the replacement of the backing plate 215 and adapting to the internal polishing operation of barrels 400 of different diameters.

[0037] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A device for polishing the inner wall of a plastic bucket, comprising a base plate (100), wherein a clamping mechanism is provided above the base plate (100), characterized in that: It also includes a polishing mechanism for polishing the inner wall of the plastic bucket, the polishing mechanism being located below the clamping mechanism; The polishing mechanism includes a polishing structure for polishing the inner wall of the plastic bucket and a lifting structure for driving the polishing structure to move up and down. The grinding structure includes a rotating shaft (205) that can move up and down above the base plate (100). A rotary motor (206) is provided at the rotating end of the rotating shaft (205). The output end of the rotary motor (206) is fixed to the rotating end of the rotating shaft (205) through a coupling. Multiple fixing frames (207) are fixed at the top of the rotating shaft (205). The multiple fixing frames (207) are distributed around the center of the rotating shaft (205). A grinding plate (208) is slidably installed inside the fixing frame (207). The grinding plate (208) is connected to the fixing frame (207). The rotating shaft (205) has a pre-tensioned spring. Multiple sliding grooves (209) are arranged around the side wall of the rotating shaft (205). A sliding seat (210) that moves up and down is slidably installed in the sliding groove (209). A compression spring is connected between the sliding seat (210) and the sliding groove (209). A rotating plate (211) is rotatably arranged between the sliding seat (210) and the grinding plate (208). A barrel (400) is provided above the grinding plate (208). A padding structure is provided at the lower end of the barrel (400) for padding the outer wall of the barrel (400) when grinding the inner wall of the barrel (400).

2. The plastic bucket inner wall polishing device according to claim 1, characterized in that: The padding structure includes a sliding ring (218) that can move up and down below the barrel (400). Multiple connecting frames (212) are fixed around the inner wall of the sliding ring (218). An installation groove (219) is fixed between the upper parts of the multiple connecting frames (212) near the center of the barrel (400). A detachable pad (215) is installed in the installation groove (219). Multiple locking bolts are installed between the pad (215) and the installation groove (219). The connecting frame (212) is provided with a guide structure for driving the grinding plate (208) to move into the barrel (400).

3. The plastic bucket inner wall polishing device according to claim 2, characterized in that: The guide structure includes a guide block (213) that is slidably installed on the connecting frame (212) at one end near the center of the barrel (400). A cylinder (214) is provided between the guide block (213) and the connecting frame (212). The end of the guide block (213) near the barrel (400) is inclined, and the lower side of the guide block (213) is the smaller end.

4. The plastic bucket inner wall polishing device according to claim 3, characterized in that: The lifting structure includes two sliding frames (201) disposed on the upper end of the base plate (100). A lead screw (202) is rotatably installed inside the sliding frame (201). A lifting motor (203) is installed on the rotating end of the lead screw (202). The output end of the lifting motor (203) is fixed to the rotating end of the lead screw (202) through a coupling. A lifting plate (204) is slidably installed between the two sliding frames (201). The lifting plate (204) is threadedly connected to the lead screw (202). Two vertically placed top plates (217) are provided on the lifting plate (204). The rotating shaft (205) is rotatably connected to the lifting plate (204).

5. The plastic bucket inner wall polishing device according to claim 4, characterized in that: The clamping mechanism includes a fixed plate (301) fixedly disposed between the upper ends of the two sliding frames (201). Multiple upper wedges (302) are slidably mounted on the lower end of the fixed plate (301). The multiple upper wedges (302) are distributed around the center of the barrel (400). A tension spring is connected between the upper wedges (302) and the fixed plate (301). A clamping block (305) is fixed to one end of the upper wedge (302) near the barrel (400). A fixing ring (304) is provided below the upper wedges (302). Multiple lower wedges (303) are fixed around the upper end of the fixing ring (304). The lower wedges (303) and the upper wedges (302) are inclined on the side closest to each other and slide together. Multiple electric push rods (306) are provided between the fixing ring (304) and the fixed plate (301).

6. The plastic bucket inner wall polishing device according to claim 5, characterized in that: A return spring is connected between the sliding ring (218) and the sliding frame (201). The sliding ring (218) is slidably connected to the sliding frame (201), and the sliding ring (218) is slidably engaged with the lead screw (202).

7. The plastic bucket inner wall polishing device according to claim 6, characterized in that: The pad (215) is rotatably provided with a plurality of ball bearings (216) at one end near the barrel (400).

Images