Apparatus for polishing inner diameter portion of pipe

Abstract

The present invention relates to an apparatus for polishing the inner diameter portion of a pipe and, more specifically, to an apparatus for clearly polishing the inner diameter portion of a pipe. In the apparatus for polishing the inner diameter portion of a pipe of the present invention, when a drive slider moves forward, a first insertion bar and a second insertion bar move together to be inserted into a pipe, and the second insertion bar rotates independently of the first insertion bar by a rotation drive part so that a brush can effectively polish the inner diameter portion of the pipe.

Description

Pipe inner diameter grinding device

[0001] The present invention relates to a pipe inner diameter polishing device, and more particularly, to a pipe inner diameter polishing device capable of cleanly polishing the inner diameter of a pipe.

[0002]

[0003] Generally, pipes are manufactured from strip-shaped plates with a certain width.

[0004] A circular pipe can be manufactured by continuously supplying such a strip-shaped plate, rolling it with a roller to have a circular cross-section, and joining the parts where both ends meet by a method such as welding.

[0005] Pipes manufactured in this way require a process of pressing the welding beads formed on the inner and outer surfaces during the welding process using a bead processor.

[0006] Even if the beads are processed in this way, a polishing process is required to make them smooth.

[0007] In particular, the inner surface of the pipe is hidden inside, making it difficult to polish, and the longer the pipe and the smaller its diameter, the more difficult it is to polish the inner diameter.

[0008] Pipes used as sanitary pipes to transport food materials in food processing plants and other places need to have their inner diameters processed to be very smooth.

[0009] As described above, various pipe inner diameter polishing devices have been developed in the past to polish the inner diameter of a pipe.

[0010] However, conventional pipe inner diameter polishing devices have limitations in quickly and effectively polishing the inner diameter of a pipe, and there is a problem in that foreign substances generated during polishing fly outward, which has a negative effect on the worker.

[0011] [Prior Art Literature]

[0012] [Patent Document]

[0013] Registered Utility Model No. 20-0258105

[0014] Registered patent no. 10-0681492

[0015]

[0016] The present invention is intended to solve the above-mentioned problems, and its purpose is to provide a pipe inner diameter polishing device capable of quickly and effectively polishing the inner diameter of a pipe and preventing foreign substances such as dust generated during polishing from flying away.

[0017]

[0018] In order to achieve the above object, the pipe inner diameter polishing device of the present invention comprises: a base equipped with a rail; a fixing member for fixing a pipe placed on the upper portion of the base; a driving slider that reciprocates forward and backward along the rail; a hollow first insertion bar that is mounted on the driving slider and moves forward together with the movement of the driving slider and is inserted into the interior of the pipe; a rotary driving member mounted on the driving slider; a second insertion bar that is rotatably inserted and positioned inside the first insertion bar, has one end connected to the rotary driving member and has a brush mounted on the other end; a fixed support member that is fixed to the upper portion of the base and presses and supports the first insertion bar that reciprocates; It comprises a movable support member that is disposed between the driving slider and the fixed support member, is movably mounted along the rail, and pressurizes and supports the first insertion bar that moves reciprocally; wherein the brush is exposed to the outside of the first insertion bar, and when the driving slider advances, the first insertion bar and the second insertion bar move together and are inserted into the inside of the pipe, and the second insertion bar rotates independently with respect to the first insertion bar by the rotary drive unit while the brush grinds the inner diameter of the pipe, and when the first insertion bar is moved by the driving slider, the movable support member moves together by a frictional force between the movable support member and the first insertion bar, and when the movable support member reaches adjacent to the fixed support member and the movable support member can no longer move in the direction of the fixed support member, when the driving slider advances further, the first insertion bar is forcibly moved by penetrating the movable support member.

[0019] The above movable support member and fixed support member include a body having a through hole formed in the center thereof; an upper roller and a lower roller arranged above and below the through hole; and a pressing member that presses the upper roller toward the lower roller, wherein the first insertion bar passes between the upper roller and the lower roller, the upper roller is mounted on the body so as to be movable in the up-and-down direction, and the pressing member presses the upper roller downward to press the first insertion bar arranged below against the lower roller.

[0020] It further comprises a dustproof box arranged between the fixed member and the fixed support member to receive foreign substances generated when grinding the inner diameter of the pipe, wherein the first insertion bar is inserted and arranged on one side of the dustproof box, the pipe is inserted and arranged on the other side, and when the driving slider is retracted to the maximum in a direction away from the pipe, the brush is arranged inside the dustproof box while being spaced apart from the pipe.

[0021] It further comprises a discharge pipe connected to the above dustproof box; and a discharge pump connected to the above discharge pipe; wherein foreign substances existing inside the above dustproof box are discharged to the outside of the above dustproof box through the discharge pipe by the operation of the above discharge pump.

[0022] It further comprises a first sensor for detecting whether the driving slider and the moving support member are disposed adjacently; a second sensor for detecting whether the driving slider has been retracted to the maximum; and a control unit for controlling the operation of the driving slider and the rotary drive unit, wherein when the first sensor detects that the driving slider and the moving support member are disposed adjacently by a preset reference value due to the forward movement of the driving slider, the control unit retracts the driving slider, and when the driving slider is retracted and the second sensor detects that the driving slider has been retracted to the maximum, the control unit stops the operation of the driving slider and the rotary drive unit.

[0023]

[0024] According to the pipe inner diameter polishing device of the present invention as described above, the following effects are achieved.

[0025] The present invention can quickly and effectively polish the inner diameter of a pipe and prevent foreign substances such as dust generated during polishing from flying away.

[0026]

[0027] Figure 1 is a side structural view of a pipe inner diameter polishing device according to an embodiment of the present invention;

[0028] Figure 2 is a perspective view of a support member according to an embodiment of the present invention with a pipe penetrating through it.

[0029] Figure 3 is a side structural view of the driving slider in Figure 1 in a forward state.

[0030] Figure 4 is a side structural view of the drive slider in Figure 3 with the drive slider further advanced.

[0031] Figure 5 is a side structural view of the drive slider in Figure 4 with the drive slider retracted.

[0032] Figure 6 is a side structural view of the drive slider in Figure 5 with the drive slider further retracted.

[0033]

[0034] The pipe inner diameter polishing device of the present invention comprises: a base on which a rail is mounted; a fixing member for fixing a pipe placed on the upper portion of the base; a driving slider that reciprocates forward and backward along the rail; a hollow first insertion bar that is mounted on the driving slider and moves forward together with the movement of the driving slider and is inserted into the interior of the pipe; a rotary driving member mounted on the driving slider; a second insertion bar that is rotatably inserted and positioned inside the first insertion bar, has one end connected to the rotary driving member and has a brush mounted on the other end; a fixed support member that is fixed on the upper portion of the base and presses and supports the first insertion bar that reciprocates; It comprises a movable support member that is disposed between the driving slider and the fixed support member, is movably mounted along the rail, and pressurizes and supports the first insertion bar that moves reciprocally; wherein the brush is exposed to the outside of the first insertion bar, and when the driving slider advances, the first insertion bar and the second insertion bar move together and are inserted into the inside of the pipe, and the second insertion bar rotates independently with respect to the first insertion bar by the rotary drive unit while the brush grinds the inner diameter of the pipe, and when the first insertion bar is moved by the driving slider, the movable support member moves together by a frictional force between the movable support member and the first insertion bar, and when the movable support member reaches adjacent to the fixed support member and the movable support member can no longer move in the direction of the fixed support member, when the driving slider advances further, the first insertion bar is forcibly moved by penetrating the movable support member.

[0035]

[0036] The purpose, specific advantages, and novel features of the present invention will become more apparent from the following detailed description and examples in conjunction with the accompanying drawings. In this specification, when assigning reference numbers to components in each drawing, it should be noted that, as much as possible, identical components are given the same numbers even if they are shown in different drawings. In addition, in describing the present invention, if a detailed description of a related known technology is judged to unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. In this specification, terms such as first, second, etc. are used to distinguish one component from another, and the components are not limited by the terms. In the accompanying drawings, some components are exaggerated, omitted, or schematically illustrated, and the size of each component does not entirely reflect the actual size.

[0037] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

[0038]

[0039] The pipe inner diameter polishing device of the present invention comprises, as shown in Fig. 1, a base (10), a fixing member (12), a rail (11), a driving slider (20), a first insertion bar (21), a rotary driving member (22), a second insertion bar (23), a support member, etc.

[0040] The above base (10) is supported with its lower part in contact with the ground and is formed long in the front-back direction.

[0041] The above base (10) is equipped with a rail (11) for the driving slider (20) to move.

[0042] The above-mentioned fixing member (12) is mounted on the upper side of the base (10) and fixes the pipe (P) placed on the upper side of the base (10).

[0043] The above driving slider (20) is installed so as to be able to move back and forth along the rail (11).

[0044] It is sufficient for the movement of the above driving slider (20) to be achieved by various conventionally known devices and structures.

[0045] The above first insertion bar (21) is mounted on the driving slider (20) and moves together when the driving slider (20) moves.

[0046] The above first insertion bar (21) is arranged longitudinally in the front-back direction along the base (10) at the upper side of the other side of the base (10) opposite to one side of the base (10) where the pipe (P) and the fixing member (12) are arranged.

[0047] The above first insertion bar (21) moves forward by the movement of the driving slider (20) and is inserted into the inside of the pipe (P) fixed by the fixing member (12).

[0048] The above first insertion bar (21) is formed in a hollow shape.

[0049] The above rotary drive unit (22) is mounted on the drive slider (20) and moves together with the drive slider (20).

[0050] The above rotary drive unit (22) rotates the second insertion bar (23).

[0051] The second insertion bar (23) is rotatably inserted into the interior of the first insertion bar (21) formed in a hollow shape, and one end is connected to the rotation driving part (22) and the other end is equipped with a brush (24).

[0052] The above brush (24) is exposed to the outside of the first insertion bar (21).

[0053] When the driving slider (20) moves forward, the first insertion bar (21) and the second insertion bar (23) move together and are inserted into the inside of the pipe (P), and the second insertion bar (23) rotates independently with respect to the first insertion bar (21) by the rotary driving unit (22), and the brush (24) polishes the inner diameter of the pipe (P).

[0054] In this embodiment, the first insertion bar (21) and the second insertion bar (23) are shown briefly for convenience of explanation, but the first insertion bar (21) and the second insertion bar (23) may be formed longer than those shown in the drawing.

[0055] The above support member (31, 32) is in contact with the outer surface of the first insertion bar (21) that moves reciprocally, and supports the first insertion bar (21) and the second insertion bar (23) so that they can move stably without moving.

[0056] The first insertion bar (21) only moves in a straight line and does not rotate, and since the second insertion bar (23) inserted into the inside of the first insertion bar (21) rotates independently of the first insertion bar (21), the second insertion bar (23) can rotate freely without being hindered by contact with the support member, thereby rotating quickly and effectively grinding the inner diameter of the pipe (P).

[0057] The above support member is composed of a fixed support member (31) and a movable support member (32).

[0058] The above fixed support member (31) is fixed to the upper portion of the base (10) and supports the first insertion bar (21) by applying pressure.

[0059] The above movable support member (32) is placed between the driving slider (20) and the fixed support member (31), is mounted so as to be movable along the rail (11), and supports the first insertion bar (21) by applying pressure.

[0060] When the first insertion bar (21) is moved by the driving slider (20), the moving support member (32) moves together with the first insertion bar (21) due to the frictional force acting between the moving support member (32) and the first insertion bar (21).

[0061] Then, when the movable support member (32) reaches adjacent to the fixed support member (31) and the movable support member (32) can no longer move in the direction of the fixed support member (31), when the driving slider (20) moves further forward, the first insertion bar (21) is forced to move by penetrating the movable support member (32).

[0062] At this time, in order to prevent the movable support member (32) from moving any further when it reaches adjacent to the fixed support member (31), a separate stopper or the like is installed.

[0063] The above-mentioned movable support member (32) and fixed support member (31) are composed of a body (33), an upper roller (34), a lower roller (35), and a pressure member (36), as shown in FIG. 2.

[0064] The above body (33) has a through hole formed in the center.

[0065] The upper roller (34) is positioned above the through hole, and the lower roller (35) is positioned below the through hole.

[0066] The upper roller (34) is mounted on the body (33) so as to be able to move up and down.

[0067] The above first insertion bar (21) passes between the upper roller (34) and the lower roller (35).

[0068] The above pressure member (36) presses the upper roller (34) toward the lower roller (35).

[0069] The above pressurizing member (36) may be formed of a cylinder or the like.

[0070] When the first insertion bar (21) is placed between the upper roller (34) and the lower roller (35), and the pressing member (36) presses the upper roller (34) downward, the upper roller (34) presses the first insertion bar (21) placed at the bottom against the lower roller (35), so that a frictional force is generated between the first insertion bar (21) and the support member due to the pressurized contact.

[0071] When the first insertion bar (21) is forced to move by penetrating the movable support member (32), the first insertion bar (21) moves while forcibly rotating the upper roller (34) and the lower roller (35).

[0072] The present invention can be further implemented by including a dustproof box (40).

[0073] The above dustproof box (40) is placed between the fixing member (12) and the fixing support member (31) on the upper part of the base (10), and is a place where foreign substances generated during the inner diameter grinding of the pipe (P) are received.

[0074] The first insertion bar (21) is inserted and placed on one side of the dustproof box (40), and the pipe (P) is inserted and placed on the other side.

[0075] The above dustproof box (40) is separated into upper and lower parts to make it easy to open and close or clean the inside.

[0076] Foreign substances generated during polishing inside the pipe (P) by the above dustproof box (40) can be prevented from flying outward and having a negative effect on workers, etc.

[0077] When the above driving slider (20) is retracted to the maximum in the direction away from the pipe (P), the brush (24) is placed inside the dustproof box (40) while being spaced apart from the pipe (P).

[0078] Foreign substances contained in the above dustproof box (40) can be cleaned by a worker, but it is preferable to have them discharged automatically.

[0079] For this purpose, a discharge pipe (41) is connected to the dustproof box (40), and the discharge pipe (41) may be connected to a discharge pump.

[0080] By the operation of the above discharge pump, foreign substances existing inside the dustproof box (40) are automatically discharged to the outside of the dustproof box (40) through the discharge pipe (41).

[0081] In addition, the present invention may further include a first sensor (51), a second sensor (52), and a control unit (not shown).

[0082] The above first sensor (51) detects whether the driving slider (20) and the moving support member (32) are placed adjacent to each other.

[0083] The above first sensor (51) may be mounted on the driving slider (20), on the moving support member (32), or on any other location.

[0084] It is sufficient for the above first sensor (51) to detect whether the driving slider (20) and the moving support member (32) are positioned adjacent to a preset reference value.

[0085] The second sensor (52) detects whether the driving slider (20) has been retracted to its maximum.

[0086] The second sensor (52) may be mounted on the drive slider (20), on the base (10), or on any other location.

[0087] It is sufficient for the above second sensor (52) to detect whether the driving slider (20) is at the preset maximum retraction position.

[0088] The above control unit controls the operation of the driving slider (20) and the rotary driving unit (22).

[0089] When the first sensor (51) detects that the driving slider (20) and the moving support member (32) are positioned adjacent to a preset reference value by the forward movement of the driving slider (20), the control unit stops the forward movement of the driving slider (20) and then moves it backward.

[0090] And, when the driving slider (20) retracts and the second sensor (52) detects that the driving slider (20) has retracted to the maximum, the control unit stops the operation of the driving slider (20) and the rotary drive unit (22).

[0091] The pipe (P) inner diameter polishing device of the present invention can be automatically operated by the first sensor (51), second sensor (52) and control unit as described above.

[0092]

[0093] Below, the operation process of the present invention composed of the above-described configuration will be examined.

[0094] As shown in Fig. 1, a pipe (P) to be inner diameter-polished is placed on top of the base (10) and fixed with the fixing member (12).

[0095] And, one end of the pipe (P) is inserted and placed inside the dustproof box (40).

[0096] At this time, the driving slider (20) is placed in the maximum retracted state, and the other ends of the first insertion bar (21) and the second insertion bar (23) are inserted and placed inside the dustproof box (40).

[0097] The brush (24) mounted on the other end of the second insertion bar (23) is spaced apart from the pipe (P) while being placed inside the dustproof box (40).

[0098] And, the movable support member (32) is spaced apart from the fixed support member (31) to the greatest extent possible.

[0099] When this preparation state is completed, the drive slider (20) and the rotary drive unit (22) are operated.

[0100] As shown in Fig. 3, as the driving slider (20) moves forward, i.e., moves forward in the direction in which the pipe (P) is arranged, the first insertion bar (21) and the second insertion bar (23) move forward and are inserted into the inside of the pipe (P).

[0101] At this time, the second insertion bar (23) is rotated by the rotary driving part (22), and the brush (24) rotates while inserted into the inside of the pipe (P) to polish the inner diameter of the pipe (P).

[0102] In addition, since the first insertion bar (21) only moves in a straight line and does not rotate, and the second insertion bar (23) inserted into the inside of the first insertion bar (21) rotates, the second insertion bar (23) rotates without coming into contact with the support member (31, 32), thereby rotating more quickly and effectively polishing the inner diameter of the pipe (P).

[0103] As the first insertion bar (21) advances by the driving slider (20), the moving support member (32) that is pressing the first insertion bar (21) moves together with the first insertion bar (21) due to frictional force with the first insertion bar (21).

[0104] As shown in FIG. 3, when the movable support member (32) reaches adjacent to the fixed support member (31), the movable support member (32) is caught by a stopper or the like and cannot move any further. Therefore, from this point on, the first insertion bar (21) is forced to move independently by penetrating the movable support member (32) as shown in FIG. 4.

[0105] That is, the above-mentioned movable support member (32) is caught by a stopper or the like and cannot move any further, and the first insertion bar (21) moves while forcibly rotating the upper roller (34) and lower roller (35) of the above-mentioned movable support member (32).

[0106] Then, as shown in Fig. 4, when the driving slider (20) reaches close to the moving support member (32), this is detected by the first sensor (51), and at this time, the control unit retracts the driving slider (20).

[0107] As the above driving slider (20) retracts, the first insertion bar (21) and the second insertion bar (23) retract together, as shown in FIG. 5.

[0108] At this time, when the first insertion bar (21) is retracted, the movable support member (32) that was pressing the first insertion bar (21) is retracted together with the first insertion bar (21) and becomes separated from the fixed support member (31).

[0109] As the above driving slider (20) retreats, the above moving support member (32) also retreats. At this time, when the above moving support member (32) reaches the initial position, it is stopped by a stopper or the like installed in advance, so that the above moving support member (32) cannot retreat any further.

[0110] At this time, in order to prevent the movable support member (32) from moving any further when it reaches adjacent to the fixed support member (31), a separate stopper or the like is installed.

[0111] From then on, as shown in Fig. 6, the movable support member (32) can no longer move backward, and only the driving slider (20) moves backward.

[0112] As the above driving slider (20) retracts, the first insertion bar (21) is forced to move by penetrating the moving support member (32).

[0113] When the above driving slider (20) retracts and the second sensor (52) detects that the driving slider (20) has retracted to the maximum, the control unit stops the operation of the driving slider (20) and the rotary drive unit (22).

[0114] At this time, the brush (24) is removed from the inside of the pipe (P) as in the initial state, and foreign substances generated during the inner diameter polishing of the pipe (P) are discharged into the inside of the dustproof box (40).

[0115] Foreign substances discharged into the interior of the above dustproof box (40) are discharged to the outside through the discharge pipe (41) and discharge pump.

[0116] As described above, the present invention can quickly and effectively polish the inner diameter of a pipe (P) and prevent foreign substances such as dust generated during polishing from flying away.

[0117] The pipe inner diameter polishing device of the present invention is not limited to the above-described embodiment, and can be implemented by various modifications within the scope permitted by the technical idea of ​​the present invention.

[0118] Although the present invention has been described in detail through examples, these are intended to specifically explain the present invention, and the pipe inner diameter polishing device according to the present invention is not limited thereto, and it will be apparent that modifications or improvements can be made by a person having ordinary knowledge in the relevant field within the technical spirit of the present invention.

[0119] All simple modifications or changes of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be made clear by the appended claims.

[0120]

[0121] [Explanation of symbols]

[0122] 10: Base, 11: Rail, 12: Fixing member,

[0123] 20: driving slider, 21: first insertion bar, 22: rotary driving part, 23: second insertion bar, 24: brush,

[0124] 31: fixed support member, 32: movable support member, 33: body, 34: upper roller, 35: lower roller, 36: pressure member,

[0125] 40: Dustproof box, 41: Exhaust pipe,

[0126] 51: first sensor, 52: second sensor,

[0127] P: pipe,

Claims

1. Base with rails; A fixing member for fixing a pipe placed on the upper part of the above base; A driving slider that moves back and forth along the above rail; A first hollow insertion bar mounted on the above driving slider and moved forward together with the movement of the driving slider to be inserted into the inside of the pipe; A rotary drive unit mounted on the above drive slider; A second insertion bar rotatably inserted and positioned inside the first insertion bar, one end of which is connected to the rotational driving part, and the other end of which is equipped with a brush; A fixed support member that is fixed to the upper part of the base and supports the first insertion bar that moves reciprocally by applying pressure; It comprises a movable support member that is positioned between the driving slider and the fixed support member, is movably mounted along the rail, and presses and supports the first insertion bar that moves reciprocally; The above brush is exposed to the outside of the first insertion bar, When the driving slider moves forward, the first insertion bar and the second insertion bar move together and are inserted into the inside of the pipe, and the second insertion bar rotates independently with respect to the first insertion bar by the rotary driving unit, and the brush polishes the inner diameter of the pipe. When the first insertion bar is moved by the driving slider, the moving support member moves together due to the frictional force between the moving support member and the first insertion bar. A pipe inner diameter polishing device characterized in that when the driving slider is moved further forward when the movable support member reaches adjacent to the fixed support member and the movable support member can no longer move in the direction of the fixed support member, the first insertion bar is forcibly moved by penetrating the movable support member.

2. In claim 1, The above movable support member and fixed support member are, A body with a through hole formed in the center; Upper rollers and lower rollers arranged at the upper and lower portions of the above through hole; It is made up of a pressing member that presses the upper roller in the direction of the lower roller; The above first insertion bar penetrates between the upper roller and the lower roller, The above upper roller is mounted on the body so as to be able to move up and down, A pipe inner diameter polishing device characterized in that the above-mentioned pressure member presses the upper roller downward to press the first insertion bar disposed at the bottom against the lower roller.

3. In claim 1, It further comprises a dustproof box arranged between the above fixed member and the fixed support member to receive foreign substances generated when grinding the inner diameter of the pipe; The first insertion bar is inserted and placed on one side of the above dustproof box, and the pipe is inserted and placed on the other side. A pipe inner diameter polishing device characterized in that when the driving slider is retracted to the maximum in a direction away from the pipe, the brush is placed inside the dustproof box while being spaced apart from the pipe.

4. In claim 3, An exhaust pipe connected to the above dustproof box; It further comprises a discharge pump connected to the above discharge pipe; A pipe inner diameter polishing device characterized in that foreign substances existing inside the dustproof box are discharged to the outside of the dustproof box through the discharge pipe by the operation of the discharge pump.

5. In claim 1, A first sensor that detects whether the driving slider and the moving support member are placed adjacently; A second sensor that detects whether the above driving slider has been retracted to its maximum; It further comprises a control unit that controls the operation of the above driving slider and the rotary driving unit; When the first sensor detects that the driving slider and the moving support member are positioned adjacent to each other by a preset reference value due to the forward movement of the driving slider, the control unit retracts the driving slider. A pipe inner diameter polishing device characterized in that when the driving slider retracts and the second sensor detects that the driving slider has retracted to the maximum, the control unit stops the operation of the driving slider and the rotary driving unit.

Images