Machine barrel inner wall polishing device

Abstract

The utility model relates to a machine barrel inner wall polishing device. The device comprises a hand lever, a first base plate is fixedly installed at one end of the hand lever, three supporting rods are fixedly installed on the outer surface of the hand lever, and the three supporting rods are jointly and fixedly installed on one side of the first base plate; the fixing mechanism is used for fixing the polishing device on the inner wall of the machine barrel; the fixing mechanism comprises a telescopic rod, the telescopic rod is fixedly installed on one side of the first base plate, the other end of the telescopic rod is fixedly connected with a third base plate, one side of the third base plate is fixedly connected with a first electric telescopic rod, and the bottom of the first electric telescopic rod is fixedly connected with a fourth base plate. The position of a third base plate can be changed through contraction of a first electric telescopic rod, when the third base plate moves, a first connecting rod rotates on the inner surface of a sixth groove and pushes a second connecting rod to slide along a limiting sleeve, the second connecting rod further pushes a clamping block to abut against the inner wall of the machine barrel, and fixing of the grinding device is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of barrel inner wall grinding, in particular to a barrel inner wall grinding device. Background Art

[0002] The barrel is one of the important components of the injection molding machine. Its function is to transport, compact, melt, stir and pressurize the plastic. If the surface roughness of the inner wall of the barrel does not meet the requirements, the friction between the inner wall of the barrel and the plastic will be large during the pushing process of the screw, which will affect the extrusion efficiency of the plastic. In addition, the increased friction will cause the temperature of the barrel to rise too quickly, shortening the service life of the barrel.

[0003] After searching, the patent document with publication number CN 217750695 U discloses a barrel inner wall grinding device, which includes a base plate and an internal grinding mechanism, a storage sleeve is fixedly installed on the base plate, and the internal grinding mechanism is arranged in the storage sleeve. The internal grinding mechanism includes a torsion plate, a spiral steel wire is connected between the torsion plate and the base plate, a fixed sleeve is fixedly installed on the side of the torsion plate away from the base plate, and a mounting block is rotatably installed on one end of the fixed sleeve and the torsion plate. The processing displacement distance of the device is not limited by the overall volume, but is related to the length of the spiral steel wire. The volume of the device can be reduced as much as possible, which is convenient for storage. At the same time, the folding structure in the internal grinding mechanism enables it to grind barrels with different inner diameters.

[0004] The above-mentioned device drives the power shaft through the grinding motor to further drive the grinding wheel to rotate to grind the inner wall of the barrel, and controls the position of the grinding device by limiting the pull rope. However, in actual use, when grinding the inner wall of the barrel, the roughness of different positions of the inner wall of the barrel is different, and therefore the grinding time required is also different. In this case, the grinding device needs to be fixed to the inner wall of the barrel, but the above-mentioned grinding device lacks a structure to fix itself to the inner wall of the barrel. Utility Model Content

[0005] Therefore, the technical problem to be solved by the utility model is to overcome the problem in the prior art that the grinding device cannot be fixed on the inner wall of the barrel.

[0006] In order to solve the above technical problems, the utility model provides a barrel inner wall grinding device, comprising a hand rod, one end of which is fixedly mounted with a first base plate, and the outer surface of the hand rod is fixedly mounted with three support rods, and the three support rods are fixedly mounted together on one side of the first base plate;

[0007] It also includes a fixing mechanism for fixing the grinding device to the inner wall of the barrel;

[0008] The fixing mechanism includes a telescopic rod, which is fixedly mounted on one side of a first substrate, and the other end of the telescopic rod is fixedly connected to a third substrate, one side of the third substrate is fixedly connected to a first electric telescopic rod, the bottom of the first electric telescopic rod is fixedly connected to a fourth substrate, the outer surface of the third substrate is rotatably connected to a first connecting rod, one end of the first connecting rod is rotatably connected to a second connecting rod, the second connecting rod is slidably mounted on one side of the fourth substrate, one end of the second connecting rod is fixedly connected to a clamping block, a fifth substrate is rotatably mounted on one side of the fourth substrate, a third motor is movably mounted on one side of the fifth substrate, and an output shaft of the third motor is fixedly connected to a grinding wheel.

[0009] Preferably, three arc grooves are provided on one side of the first substrate, a cylinder is slidably connected to the inner surface of the arc groove, a first sliding rod is fixedly connected to one side of the cylinder, a second groove is provided at one end of the first sliding rod, a rotating wheel is rotatably installed on the inner surface of the second groove, and a first groove is provided on one side of the first substrate.

[0010] Preferably, a third groove is provided on both sides of the inner wall of the second groove, a slider is slidably installed on the inner surface of the third groove, two sliders are rotatably installed on both sides of the rotating wheel respectively, a damper is fixedly connected to one side of the slider, and a first spring is wound and installed on the outer surface of the damper.

[0011] Preferably, one end of the telescopic rod is fixedly mounted on the inner surface of the first groove, a second substrate is slidably mounted on the outer surface of the telescopic rod, a fifth groove is opened on one side of the second substrate, the telescopic rod is slidably mounted on the inner surface of the fifth groove, three fourth grooves are opened on one side of the second substrate, and the first sliding rod is slidably mounted on the inner surface of the fourth groove.

[0012] Preferably, one end of the telescopic rod is fixedly connected to a first motor, the first motor is fixedly mounted on one side of a third substrate, three sixth grooves are opened on one side of the third substrate, the first connecting rod is rotatably mounted on the inner surface of the sixth groove, a seventh groove is opened at one end of the first connecting rod, and the second connecting rod is rotatably mounted on the inner surface of the seventh groove.

[0013] Preferably, an eighth groove is opened on one side of the blocking block, three second springs are fixedly installed on the inner surface of the eighth groove, three limit sleeves are fixedly installed on one side of the fourth substrate, the second connecting rod is slidably installed on the inner surface of the limit sleeve, three support columns are fixedly installed on one side of the second substrate, and one end of the three support columns are jointly fixedly installed on one side of the fourth substrate.

[0014] Preferably, an annular groove is opened on one side of the fourth substrate, a second motor is fixedly installed on one side of the annular groove, an output shaft of the second motor is fixedly installed on one side of the fifth substrate, three limit rods are fixedly installed on one side of the fifth substrate, and the three limit rods are all slidably installed on the inner surface of the annular groove.

[0015] Preferably, a rotating rod is rotatably mounted on one side of the fifth substrate, a ninth groove is provided on one side of the rotating rod, a rotating shaft is rotatably mounted on the inner surface of the ninth groove, the rotating shaft is fixedly mounted on one side of the fifth substrate, a tenth groove is provided on one side of the rotating rod, a second electric telescopic rod is rotatably mounted on the inner surface of the tenth groove, a movable block is fixedly mounted on one end of the second electric telescopic rod, the movable block is rotatably mounted on one side of the fifth substrate, and the third motor is fixedly mounted on one side of the rotating rod.

[0016] The above technical solution of the utility model has the following advantages compared with the prior art:

[0017] The utility model discloses a device for grinding the inner wall of a barrel. The position of the third substrate can be changed by contracting the first electric telescopic rod. When the third substrate moves, the first connecting rod rotates on the inner surface of the sixth groove and pushes the second connecting rod to slide along the limiting sleeve. The second connecting rod further pushes the block to press against the inner wall of the barrel to fix the grinding device. The grinding wheel can be used to grind the inner wall of the barrel in a circumferential manner by rotating the fifth substrate with the second motor. The position of the grinding wheel can be further changed by extending and contracting the second electric telescopic rod, so that the inner wall of the barrel can still be ground when facing barrels of different diameters.

[0018] The utility model discloses a barrel inner wall grinding device, in which a telescopic rod is rotated by a first motor output shaft, and the telescopic rod in turn rotates a first base plate. When the first base plate rotates, a cylinder moves a first slide bar, and the first slide bar slides under the restriction of a fourth groove, so that a rotating wheel abuts against the barrel inner wall and the grinding device is driven by a hand lever. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments of the utility model in combination with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the first substrate structure in the utility model;

[0022] Figure 3 This is a schematic diagram of the first slide bar structure in the utility model;

[0023] Figure 4 It is a schematic diagram of the fixing mechanism structure in the utility model;

[0024] Figure 5 This is a schematic diagram of the card block structure in the utility model;

[0025] Figure 6 It is a schematic diagram of the connection structure of the grinding wheel in the utility model.

[0026] Description of the accompanying drawings: 1. Hand lever; 11. Support rod; 2. First substrate; 21. Arc groove; 22. First groove; 31. Cylinder; 32. First slide bar; 321. Second groove; 322. Third groove; 3221. Slider; 3222. Damper; 3223. First spring; 33. Rotating wheel; 4. Second substrate; 41. Fourth groove; 42. Fifth groove; 43. Telescopic rod; 44. First motor; 45. Third substrate; 451. Sixth groove; 46. First connecting rod Rod; 461, seventh groove; 47, second connecting rod; 471, limiting sleeve; 472, clamping block; 4721, eighth groove; 4722, second spring; 48, supporting column; 49, first electric telescopic rod; 5, fourth base plate; 51, annular groove; 52, second motor; 6, fifth base plate; 61, limiting rod; 62, rotating rod; 621, ninth groove; 622, tenth groove; 63, rotating shaft; 64, second electric telescopic rod; 65, movable block; 66, third motor; 67, grinding wheel. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0028] Reference Figures 1 to 6 As shown, a barrel inner wall grinding device of the utility model comprises a hand lever 1, a first base plate 2 is fixedly mounted on one end of the hand lever 1, three support rods 11 are fixedly mounted on the outer surface of the hand lever 1, and the three support rods 11 are fixedly mounted on one side of the first base plate 2;

[0029] It also includes a fixing mechanism for fixing the grinding device to the inner wall of the barrel;

[0030] The fixing mechanism includes a telescopic rod 43, which is fixedly mounted on one side of the first substrate 2, and the other end of the telescopic rod 43 is fixedly connected to a third substrate 45, one side of the third substrate 45 is fixedly connected to a first electric telescopic rod 49, and the bottom of the first electric telescopic rod 49 is fixedly connected to a fourth substrate 5, the outer surface of the third substrate 45 is rotatably connected to a first connecting rod 46, one end of the first connecting rod 46 is rotatably connected to a second connecting rod 47, the second connecting rod 47 is slidably mounted on one side of the fourth substrate 5, one end of the second connecting rod 47 is fixedly connected to a clamping block 472, a fifth substrate 6 is rotatably mounted on one side of the fourth substrate 5, a third motor 66 is movably mounted on one side of the fifth substrate 6, and a grinding wheel 67 is fixedly connected to the output shaft of the third motor 66.

[0031] During the process of grinding the inner wall of the barrel, since the roughness of different positions of the inner wall of the barrel is different, the grinding time of each position is also different. When a position needs to be ground for a long time, the grinding device needs to be fixed on the inner wall of the barrel.

[0032] When the utility model is in use, first, the staff holds the hand lever 1, extends the entire grinding device into the inner wall of the barrel, and drives the grinding wheel 67 to rotate through the output shaft of the third motor 66 to grind the inner wall of the barrel. When grinding the position that requires a long time of grinding, it is necessary to fix the grinding device to the inner wall of the barrel. First, the first electric telescopic rod 49 is contracted, the first connecting rod 46 and the second connecting rod 47 rotate relative to each other, and the second connecting rod 47 slides along the fourth base plate 5 and pushes the seventh groove 461 to resist the inner wall of the barrel. When the three second connecting rods 47 all resist the inner wall of the barrel, the grinding device is fixed. At this time, the output shaft of the third motor 66 drives the grinding wheel 67 to rotate to grind the inner wall of the barrel.

[0033] Further, such as Figures 2 to 4 As shown, three arc grooves 21 are provided on one side of the first substrate 2, a cylinder 31 is slidably connected to the inner surface of the arc groove 21, a first slide bar 32 is fixedly connected to one side of the cylinder 31, a second groove 321 is provided on one end of the first slide bar 32, a rotating wheel 33 is rotatably installed on the inner surface of the second groove 321, and a first groove 22 is provided on one side of the first substrate 2;

[0034] The inner wall of the second groove 321 is provided with a third groove 322 on both sides, and a slider 3221 is slidably installed on the inner surface of the third groove 322. The two sliders 3221 are rotatably installed on both sides of the rotating wheel 33, and a damper 3222 is fixedly connected to one side of the slider 3221. The outer surface of the damper 3222 is wound with a first spring 3223;

[0035] One end of the telescopic rod 43 is fixedly mounted on the inner surface of the first groove 22, and the second base plate 4 is slidably mounted on the outer surface of the telescopic rod 43. A fifth groove 42 is formed on one side of the second base plate 4, and the telescopic rod 43 is slidably mounted on the inner surface of the fifth groove 42. Three fourth grooves 41 are formed on one side of the second base plate 4, and the first sliding rod 32 is slidably mounted on the inner surface of the fourth groove 41.

[0036] One end of the telescopic rod 43 is fixedly connected to the first motor 44, and the first motor 44 is fixedly mounted on one side of the third substrate 45. Three sixth grooves 451 are opened on one side of the third substrate 45. The first connecting rod 46 is rotatably mounted on the inner surface of the sixth groove 451. A seventh groove 461 is opened at one end of the first connecting rod 46, and the second connecting rod 47 is rotatably mounted on the inner surface of the seventh groove 461.

[0037] When grinding the inner wall of the barrel, the grinding device needs to be able to move. When the grinding device needs to be moved, the output shaft of the first motor 44 first drives the telescopic rod 43 to rotate, and the telescopic rod 43 can drive the first substrate 2 to rotate. When the first substrate 2 rotates, the cylinder 31 slides on the inner surface of the arc groove 21, and the position of the first slide bar 32 is limited by the fourth groove 41, so the first slide bar 32 can only slide along the fourth groove 41. As the first slide bar 32 slides, the three rotating wheels 33 will be against the inner wall of the barrel, and the staff drives the entire grinding device to move through the hand lever 1;

[0038] After the rotating wheel 33 is brought close to the inner wall of the barrel, the first sliding bar 32 will continue to move and push the rotating wheel 33. At this time, since the rotating wheel 33 has already pressed against the inner wall of the barrel, the first spring 3223 and the damper 3222 will shrink, so that the three rotating wheels 33 can all be close to the inner wall of the barrel, avoiding the problem that the grinding device cannot be pushed due to the rotating wheel 33 not being in contact with the inner wall of the barrel. After the movement is completed, when the grinding device needs to be fixed, the first motor 44 can be reversed to retract the rotating wheel 33.

[0039] Further, such as Figure 5 As shown, an eighth groove 4721 is opened on one side of the blocking block 472, three second springs 4722 are fixedly installed on the inner surface of the eighth groove 4721, three limiting sleeves 471 are fixedly installed on one side of the fourth substrate 5, the second connecting rod 47 is slidably installed on the inner surface of the limiting sleeve 471, and three supporting columns 48 are fixedly installed on one side of the second substrate 4, and one end of the three supporting columns 48 is fixedly installed on one side of the fourth substrate 5.

[0040] When the utility model is in use, when the grinding device is fixed on the inner wall of the barrel, the second connecting rod 47 is pressed against the inner wall of the barrel. In order to prevent the block 472 from causing damage to the inner wall of the barrel and to be able to fix the grinding device on the inner wall of the barrel, when the block 472 is pressed against the inner wall of the barrel, the three second springs 4722 can reduce the force directly transmitted to the inner wall of the barrel by the second connecting rod 47, so as to protect the inner wall of the barrel.

[0041] Further, such as Figure 6 As shown, an annular groove 51 is provided on one side of the fourth substrate 5, a second motor 52 is fixedly mounted on one side of the annular groove 51, an output shaft of the second motor 52 is fixedly mounted on one side of the fifth substrate 6, three limiting rods 61 are fixedly mounted on one side of the fifth substrate 6, and the three limiting rods 61 are all slidably mounted on the inner surface of the annular groove 51;

[0042] A rotating rod 62 is rotatably mounted on one side of the fifth substrate 6, a ninth groove 621 is provided on one side of the rotating rod 62, a rotating shaft 63 is rotatably mounted on the inner surface of the ninth groove 621, and the rotating shaft 63 is fixedly mounted on one side of the fifth substrate 6, a tenth groove 622 is provided on one side of the rotating rod 62, a second electric telescopic rod 64 is rotatably mounted on the inner surface of the tenth groove 622, a movable block 65 is fixedly mounted on one end of the second electric telescopic rod 64, and the movable block 65 is rotatably mounted on one side of the fifth substrate 6, and the third motor 66 is fixedly mounted on one side of the rotating rod 62.

[0043] When the utility model is in use, the output shaft of the third motor 66 drives the grinding wheel 67 to rotate, and the grinding wheel 67 contacts the inner wall of the barrel to grind the inner wall of the barrel. When grinding, the grinding position needs to be changed. At this time, the fifth substrate 6 is rotated by the output shaft of the second motor 52, and the limit rod 61 slides on the inner surface of the annular groove 51, so that the fifth substrate 6 can remain stable during rotation. When facing the inner walls of the barrel with different diameters, the position of the grinding wheel 67 needs to be adjusted. At this time, the second electric telescopic rod 64 is extended, and the output end of the second electric telescopic rod 64 rotates on the inner surface of the tenth groove 622, which can change the position of the third motor 66 and the grinding wheel 67, and then the inner walls of the barrel with different diameters can be ground.

[0044] Working principle: first, the staff holds the hand lever 1 and places the grinding device on the inner wall of the barrel, then the first motor 44 rotates, and the output shaft of the first motor 44 rotates with the first substrate 2. When the first substrate 2 rotates, the cylinder 31 slides on the inner surface of the arc groove 21, and the first slide bar 32 slides along the fourth groove 41. At this time, the first slide bar 32 pushes the rotating wheel 33 outward, and the three rotating wheels 33 all press against the inner wall of the barrel. By pushing the hand lever 1, the rotating wheel 33 can be rotated on the inner wall of the barrel, and then the position of the grinding device is adjusted. After moving to the specified position, the first motor 44 reverses and retracts the rotating wheel 33, then the first electric telescopic rod 49 contracts, and the first connecting rod 46 rotates, and then the second connecting rod 47 slides along the limiting sleeve 471. As the second connecting rod 47 moves, the block 472 presses against the inner wall of the barrel, and the grinding device can be fixed to the inner wall of the barrel.

[0045] After the grinding device is fixed on the inner wall of the barrel, the grinding wheel 67 is rotated by the output shaft of the third motor 66 to grind the inner wall of the barrel. When it is necessary to grind the inner wall of the barrel in a surrounding manner, the fifth substrate 6 is rotated by the output shaft of the rotating rod 62 to indirectly make the grinding wheel 67 grind the inner wall of the barrel in a surrounding manner. When grinding the inner walls of the barrel with different diameters, the position of the grinding wheel 67 can be changed by extending the second electric telescopic rod 64, thereby completing the grinding of the inner walls of the barrel with different diameters.

[0046] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A barrel inner wall grinding device, comprising a hand lever (1), a first base plate (2) being fixedly mounted on one end of the hand lever (1), three support rods (11) being fixedly mounted on the outer surface of the hand lever (1), and the three support rods (11) being fixedly mounted together on one side of the first base plate (2); It also includes a fixing mechanism for fixing the grinding device to the inner wall of the barrel; Features: The fixing mechanism comprises a telescopic rod (43), the telescopic rod (43) being fixedly mounted on one side of the first base plate (2), the other end of the telescopic rod (43) being fixedly connected to a third base plate (45), one side of the third base plate (45) being fixedly connected to a first electric telescopic rod (49), the bottom of the first electric telescopic rod (49) being fixedly connected to a fourth base plate (5), the outer surface of the third base plate (45) being rotatably connected to a first connecting rod (46), one end of the first connecting rod (46) being rotatably connected to a second connecting rod (47), the second connecting rod (47) being slidably mounted on one side of the fourth base plate (5), one end of the second connecting rod (47) being fixedly connected to a clamping block (472), a fifth base plate (6) being rotatably mounted on one side of the fourth base plate (5), a third motor (66) being movably mounted on one side of the fifth base plate (6), and an output shaft of the third motor (66) being fixedly connected to a grinding wheel (67).

2. The barrel inner wall grinding device according to claim 1, characterized in that: One side of the first substrate (2) is provided with three arc-shaped grooves (21), the inner surface of the arc-shaped groove (21) is slidably connected to a cylinder (31), one side of the cylinder (31) is fixedly connected to a first sliding rod (32), one end of the first sliding rod (32) is provided with a second groove (321), the inner surface of the second groove (321) is rotatably mounted with a rotating wheel (33), and one side of the first substrate (2) is provided with a first groove (22).

3. A barrel inner wall grinding device according to claim 2, characterized in that: A third groove (322) is provided on both sides of the inner wall of the second groove (321); a slider (3221) is slidably mounted on the inner surface of the third groove (322); the two sliders (3221) are rotatably mounted on both sides of the rotating wheel (33); a damper (3222) is fixedly connected to one side of the slider (3221); and a first spring (3223) is wound around the outer surface of the damper (3222).

4. The barrel inner wall grinding device according to claim 3, characterized in that: One end of the telescopic rod (43) is fixedly mounted on the inner surface of the first groove (22); a second base plate (4) is slidably mounted on the outer surface of the telescopic rod (43); a fifth groove (42) is provided on one side of the second base plate (4); the telescopic rod (43) is slidably mounted on the inner surface of the fifth groove (42); three fourth grooves (41) are provided on one side of the second base plate (4); and the first sliding rod (32) is slidably mounted on the inner surface of the fourth groove (41).

5. The barrel inner wall grinding device according to claim 4, characterized in that: One end of the telescopic rod (43) is fixedly connected to a first motor (44), the first motor (44) is fixedly mounted on one side of a third base plate (45), one side of the third base plate (45) is provided with three sixth grooves (451), the first connecting rod (46) is rotatably mounted on the inner surface of the sixth groove (451), one end of the first connecting rod (46) is provided with a seventh groove (461), and the second connecting rod (47) is rotatably mounted on the inner surface of the seventh groove (461).

6. The barrel inner wall grinding device according to claim 5, characterized in that: An eighth groove (4721) is provided on one side of the clamping block (472), and three second springs (4722) are fixedly mounted on the inner surface of the eighth groove (4721). Three limiting sleeves (471) are fixedly mounted on one side of the fourth base plate (5), and the second connecting rod (47) is slidably mounted on the inner surface of the limiting sleeve (471). Three supporting columns (48) are fixedly mounted on one side of the second base plate (4), and one end of the three supporting columns (48) is fixedly mounted on one side of the fourth base plate (5).

7. The barrel inner wall grinding device according to claim 6, characterized in that: An annular groove (51) is provided on one side of the fourth substrate (5), a second motor (52) is fixedly mounted on one side of the annular groove (51), an output shaft of the second motor (52) is fixedly mounted on one side of the fifth substrate (6), three limit rods (61) are fixedly mounted on one side of the fifth substrate (6), and the three limit rods (61) are all slidably mounted on the inner surface of the annular groove (51).

8. The barrel inner wall grinding device according to claim 7, characterized in that: A rotating rod (62) is rotatably mounted on one side of the fifth substrate (6), a ninth groove (621) is provided on one side of the rotating rod (62), a rotating shaft (63) is rotatably mounted on the inner surface of the ninth groove (621), the rotating shaft (63) is fixedly mounted on one side of the fifth substrate (6), a tenth groove (622) is provided on one side of the rotating rod (62), a second electric telescopic rod (64) is rotatably mounted on the inner surface of the tenth groove (622), a movable block (65) is fixedly mounted on one end of the second electric telescopic rod (64), the movable block (65) is rotatably mounted on one side of the fifth substrate (6), and the third motor (66) is fixedly mounted on one side of the rotating rod (62).

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