WO2022172778A1 - ワイピングユニット及び缶ボディメーカー - Google Patents
ワイピングユニット及び缶ボディメーカー Download PDFInfo
- Publication number
- WO2022172778A1 WO2022172778A1 PCT/JP2022/003260 JP2022003260W WO2022172778A1 WO 2022172778 A1 WO2022172778 A1 WO 2022172778A1 JP 2022003260 W JP2022003260 W JP 2022003260W WO 2022172778 A1 WO2022172778 A1 WO 2022172778A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wiping
- wiping unit
- ram
- annular
- frame
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 230000002093 peripheral effect Effects 0.000 claims abstract description 33
- 239000011347 resin Substances 0.000 claims abstract description 8
- 229920005989 resin Polymers 0.000 claims abstract description 8
- 239000010687 lubricating oil Substances 0.000 claims description 45
- 239000000314 lubricant Substances 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims 1
- 239000004814 polyurethane Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 6
- 239000002826 coolant Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 235000013361 beverage Nutrition 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000002199 base oil Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3208—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/28—Deep-drawing of cylindrical articles using consecutive dies
- B21D22/286—Deep-drawing of cylindrical articles using consecutive dies with lubricating or cooling means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/04—Measures to avoid lubricant contaminating the pumped fluid
- F04B39/041—Measures to avoid lubricant contaminating the pumped fluid sealing for a reciprocating rod
Definitions
- the present invention relates to a wiping unit and a can body maker equipped with the wiping unit.
- can body manufacturers that mold can bodies such as beverage cans.
- can body makers use a cylindrical ram that reciprocates in the direction of its central axis and presses the front end of the ram against the inner bottom surface of a metal cup body to iron the cup body.
- a cylindrical can is formed (see Patent Document 1, for example).
- a wiping member provided in this wiping unit scrapes fat-soluble lubricating oil used in a drive mechanism for driving the reciprocating motion of the ram from the outer peripheral surface of the ram when the ram reciprocates. This allows the can body maker to keep the water-soluble lubricant (coolant) and fat-soluble lubricant supplied to the ram for forming cans from mixing with each other.
- the wiper ring described in Patent Document 2 and the seal ring described in Patent Document 3 are generally known.
- the wiper ring described in Patent Document 2 includes a holding device provided in a chamber disk via a peripheral spring, and a wiper blade held by the holding device. This wiper ring wipes the oil on the surface of the piston rod with the tip of the wiper blade.
- Patent Document 3 describes that a seal ring used as a packing for sealing a gap between a reciprocating rod and a casing surrounding it has a seal lip that contacts the rod.
- Both the tip of the blade of the wiper ring described in Patent Document 2 and the tip of the seal lip of the seal ring described in Patent Document 3 are blade-shaped lip portions in cross section.
- the wiping unit attached to the reciprocating ram is equipped with a wiping member having a structure such as the wiper ring described in Patent Document 2 or the seal ring described in Patent Document 3.
- the blade-shaped lip portion of the wiping member is unevenly pressed against the outer peripheral surface of the ram, resulting in uneven wear and the like. Therefore, such a wiping unit has a problem that it is difficult to sufficiently maintain its function over a long period of time.
- the present invention has been made in view of the circumstances described above, and an example of the task is to solve the problems described above. That is, one example of the object of the present invention is to provide a wiping unit that can sufficiently maintain its function over a long period of time, and a can body maker equipped with the wiping unit.
- a wiping unit is a wiping unit for a reciprocating ram, comprising: an annular wiping member having a lip portion for pressing the outer peripheral surface of the ram; and an elastic ring for pressing the lip portion against the outer peripheral surface of the ram, and the wiping member is made of hard resin.
- the present invention it is possible to provide a wiping unit that can sufficiently maintain its function over a long period of time and a can body maker equipped with the wiping unit.
- FIG. 2(a) is a perspective view of the wiping unit shown in FIG. 1 taken along line A-A'
- FIG. It is a perspective view of a housing body.
- (a) is a sectional view taken along line C-C' of the housing shown in FIG. 3
- (b) is an enlarged view of region R of (a)
- (c) is a bottom view of the housing.
- (a) is a perspective view of a frame portion
- (b) is a perspective view showing a state in which the frame portion of (a) is sectioned along line D-D'.
- FIG. 4 is an exploded perspective view showing a housing body, a wiping member, an elastic ring, and a plurality of subunits; 3(a) and 3(b) are partial cross-sectional views of a sub-unit having a frame housing a wiping member and an elastic ring shown in FIG. 2(b).
- FIG. 2(a) is a perspective view showing the state of the wiping unit shown in FIG. 1 cut along line B-B', and FIG.
- a wiping unit 1 of this embodiment shown in FIG. 1 is an annular wiping unit for a reciprocating ram, and includes an annular housing body 2 and an annular cap body 3 attached to the housing body 2 .
- the cap body 3 is detachable from the housing body 2 .
- the wiping unit 1 is covered by attaching the cap body 3 to the housing body 2 with a plurality of screw members 31 .
- four annular subunits 5 (subunits 51 to 54) extend along the longitudinal direction of the ram 201 (see FIG. 7) (that is, the central axis direction of the ram 201). They are arranged along the O direction.
- the “annular” here is a “substantially annular”, but is not limited to this, and in the present embodiment, “Annular” may be other annular shapes such as “substantially elliptical annular”.
- the wiping unit 1 is attached to a cylindrical ram 201 provided by a can body maker that forms can bodies such as beverage cans.
- the ring-shaped wiping unit 1 is configured such that the wiping member 6 presses the outer peripheral surface 201a of the ram 201 inserted into the hollow.
- a ram 201 reciprocates in the central axis direction of a metal cup body while supplying a water-soluble lubricant (coolant) to the outer peripheral surface 201a of the ram 201 to perform drawing and ironing.
- a cylindrical can is formed from the cup body.
- the ram 201 is driven while the drive mechanism driving the reciprocation of the ram 201 in the can body maker is lubricated.
- the wiping unit 1 has a side that supplies a water-soluble lubricant for can forming to the outer peripheral surface 201a of the ram 201, and a drive mechanism side that supplies lubricating oil and drives the reciprocating motion of the ram 201. Placed on the border.
- a can body maker suppresses mixing of a water-soluble lubricant and a lubricating oil with the wiping unit 1 arranged in this manner (see Patent Document 1).
- the water-soluble lubricant contains a small amount of soluble oil in water.
- the water-soluble lubricant may contain 2 to 4% of the soluble oil and the balance may be water.
- the lubricating oil may be a fat-soluble oil obtained by adding an oily additive suitable for lubricating the bearings and drive mechanism of the ram 201 to a base oil such as mineral oil or synthetic oil. .
- the operating conditions of the can body maker are not particularly limited, but the ram 201 may reciprocate at high speed.
- a can body maker may operate with a ram stroke of 24-27 inches, a can making speed of 400 cans/min (min), and a ram stroke speed of up to 12 m/s (sec).
- the wiping unit 1 includes an annular housing body 2 having four annular subunits 5 (subunits 51 to 54), a cap body 3, and a plurality of screws. It is attached and capped by member 31 .
- the housing body 2 has the wiping member 61 and the elastic ring 81 arranged along its central axis O (along the longitudinal direction of the ram 201).
- a frame portion 21 having a storage stepped portion 22 for storage from one direction side (direction opposite to the X-axis direction of the arrow) is provided.
- a ring-shaped subunit 51 is configured by housing a ring-shaped wiping member 61 and an elastic ring 81 in a housing step portion 22 of a ring-shaped frame portion 21 .
- the ring-shaped wiping member 62 and the elastic ring 82 are housed in the housing step portion 522 of the ring-shaped frame portion 521 to form the ring-shaped subunit 52 .
- the annular wipe member 63 and the elastic ring 83 are accommodated in the storage stepped portion 532 of the annular frame portion 531 to form the annular subunit 53
- the annular subunit 53 is formed in the storage stepped portion 542 of the annular frame portion 541 .
- the wiping member 64 and the elastic rings 84a, 84b are accommodated to constitute the annular subunit 54. As shown in FIG.
- the housing body 2 includes a frame housing portion 23 for housing the frame portions 521, 531, and 541 of the subunits 52 to 54 in an overlapping manner.
- the frame portions 521, 531, and 541 will be described by taking the frame portion 541 shown in FIGS. 5(a) and 5(b) as an example.
- the frame portion 541 has a storage step portion 542 that stores the wipe member 64 and the two elastic rings 84a and 84b arranged on the outer periphery thereof from one side in the central axis O direction (the direction opposite to the X-axis direction of the arrow).
- a plurality of drain holes 543 are provided radially with respect to the central axis O of the frame portion 541 .
- the number of drain holes 543 is not particularly limited, and may be singular or any number of two or more.
- the frame portions 521 and 531 may also have substantially the same configuration as the frame portion 541.
- the wiping member 62 and the elastic ring 82 arranged on the outer circumference thereof are mounted on one side (indicated by the arrow) in the direction of the central axis O in the storage step portion 522 of the frame portion 521. (direction opposite to the X-axis direction).
- a plurality of drain holes 523 are provided radially with respect to the central axis O of the frame portion 521 .
- the wiping member 63 and the elastic ring 83 arranged on the outer periphery thereof are accommodated in the storage step portion 532 of the frame portion 531 from one side in the direction of the central axis O (direction opposite to the direction of the X-axis of the arrow). .
- a plurality of drain holes 533 are provided radially with respect to the central axis O of the frame portion 531 .
- annular drain grooves 241, 242, and 243 communicating with drain holes 523, 533, and 543, respectively, are formed inside the frame accommodating portion 23 of the housing body 2. is provided. Details of the drain grooves 241, 242, and 243 will be described later.
- the annular housing body 2 includes wipe members 61 to 64, elastic rings 81 to 83, 84a and 84b arranged on the outer periphery thereof, and frame portions 521, 531 and 541. It is accommodated from one side in the direction of the central axis O (the direction opposite to the direction of the X-axis of the arrow). Specifically, as shown in FIGS. 2(a), 2(b), 4(a) and 6, first, the annular wipe member 61 and the annular elastic ring 81 are attached to the frame portion 21 of the housing body 2. is accommodated from one side of the housing body 2 in the central axis O direction (opposite direction to the X-axis direction of the arrow), thereby forming the subunit 51 .
- the subunit 52 that is, the ring-shaped wiping member 62 and the ring-shaped elastic ring 82 arranged on the outer periphery thereof were housed from one side in the central axis O direction (direction opposite to the arrow X-axis direction).
- the frame portion 521 is accommodated in the frame accommodating portion 23 of the housing body 2 from one side in the central axis O direction (the direction opposite to the X-axis direction of the arrow).
- the subunit 53 that is, the annular wiping member 63 and the annular elastic ring 83 arranged on the outer periphery thereof were accommodated from one side in the central axis O direction (direction opposite to the arrow X-axis direction).
- the frame portion 531 is accommodated in the frame accommodating portion 23 of the housing body 2 from one side in the central axis O direction (the direction opposite to the X-axis direction of the arrow).
- the subunit 54 that is, the annular wiping member 64 and the two annular elastic rings 84a and 84b arranged on the outer periphery thereof, are removed from one side in the central axis O direction (the direction opposite to the X-axis direction of the arrow).
- the housed frame portion 541 is housed in the frame housing portion 23 of the housing body 2 from one side in the central axis O direction (direction opposite to the X-axis direction of the arrow).
- the annular elastic ring 81 is stored and the annular wipe member 61 is stored in an annular shape.
- the frame portion 521 accommodates the annular elastic ring 82 and the annular wiping member 62 in an annular shape.
- the frame portion 531 accommodates the annular elastic ring 83 and the annular wipe member 63 in an annular shape.
- the frame portion 541 accommodates the annular elastic rings 84a and 84b and also accommodates the annular wiping member 64 in an annular shape. Since the wipe members 61 to 64 are stored in the annular shape without being deformed, they can be easily stored for replacement.
- the wiping member 61 and the elastic ring are placed in the storage step portion 22 of the frame portion 21.
- 81 are housed to form the subunit 51, the frame portions 521, 531, and 541 of the subunits 52 to 54 are stacked and housed in the frame housing portion .
- the ring-shaped cap body 3 is fixed to the housing body 2 by a plurality of screw members 31 to cover the frame accommodating portion 23, thereby forming the structure shown in FIGS.
- a wiping unit 1 is configured.
- the subunits 51-54 are arranged along the central axis O direction.
- the wiping unit 1 by arranging the subunits 51 to 54 in this way, the wiping members 61 to 64 scrape off the lubricating oil, and the wiping section 4 (wiping section 4) is a region for discharging the scraped lubricating oil. 41-44) are formed.
- FIG. 7(a) shows a partial cross-sectional view of the wiping member 64 and the elastic rings 84a and 84b housed in the frame portion 541 of the subunit 54 shown in FIG. 2(b).
- 7(b) shows a partial cross-sectional view of the wiping member 63 and the elastic ring 83 accommodated in the frame portion 531 of the subunit 53 shown in FIG. 2(b).
- the wiping member 61 and the elastic ring 81 in the subunit 51, the wiping member 62 and the elastic ring 82 in the subunit 52 correspond to the wiping member 63 and the elastic ring 82 in the subunit 53. Since the configuration is the same as that of the ring 83, illustration and detailed description are omitted.
- the wiping member 63 of the subunit 53 has a lip portion 731, a groove portion 732, and an attitude holding portion 733.
- the lip portion 731 is 0.3 mm away from the outer peripheral surface 201 a of the ram 201 It has an interference of ⁇ 0.6 mm, ie a radial dimension difference.
- the elastic ring 83 of the subunit 53 is stored so as to be sandwiched between the storage step portion 532 of the frame portion 531 and the wiping member 63 .
- a pressing force (straining force) is generated on the wiping member 63, so that the lip portion 731 of the wiping member 63 reciprocates along the central axis direction (X-axis direction and the opposite direction). Since it elastically presses the outer peripheral surface 201a of the ram 201, it always follows the ram 201 and scrapes the lubricating oil on the outer peripheral surface 201a of the ram 201. - ⁇
- Hydraulic pressure is generated by the lubricating oil that has flowed in, so that the pressing force (straining force) of the lip portion 731 of the wiping member 63 against the outer peripheral surface 201a of the ram 201 is further increased, and the lubricating oil can be scraped off more reliably.
- the wiping member 61 and the elastic ring 81 of the subunit 51 and the wiping member 62 and the elastic ring 82 of the subunit 52 also have the same configuration as the wiping member 63 and the elastic ring 83 of the subunit 53. . Therefore, when the ram 201 advances in the direction opposite to the X-axis direction, the wiping members 61 and 62 of the wiping sections 41 and 42 of the wiping unit 1 also move the lubricating oil on the outer peripheral surface 201a of the ram 201 by the lip portions 7. scrape off.
- the subunit 54 basically has the same configuration as the subunits 51-53.
- the wiping member 64 of the subunit 54 has two lip portions 741 a and 741 b and a groove portion 742 .
- the subunit 54 is located on the side of the can body maker that supplies water-soluble lubricant (coolant) for can forming to the outer peripheral surface 201a of the ram 201 . Therefore, in the subunit 54, water-soluble lubricant (coolant) and dust such as metal powder caused by the can during can forming enter the drive mechanism side that supplies lubricating oil and drives the reciprocating motion of the ram 201. should be prevented from doing so.
- the wiping member 64 of the subunit 54 has planar lip portions 741a and 741b, and presses against the outer peripheral surface 201a of the ram 201 with the surfaces of the lip portions 741a and 741b.
- the planar lip portion 741a of the wiping member 64 prevents water-soluble lubricant (coolant) for can molding and dust such as metal powder generated during can molding from entering the groove portion 742 side beyond the lip portion 741a. to prevent Further, even if water-soluble lubricant, dust, or the like enters the groove portion 742, the planar lip portion 741b prevents it from exceeding the lip portion 741b.
- the wiping member 64 can wipe off lubricating oil on the outer peripheral surface 201a of the ram 201 with the lip portion 741b.
- the subunit 54 has such two planar lip portions 741a and 741b. Accordingly, the subunit 54 has two elastic rings 84a, 84b on the outer periphery of the wiping member 64 for pressing the two planar lip portions 741a, 741b against the outer peripheral surface 201a of the ram 201, respectively. .
- the wiping member 64 has a groove 742 , which is sized and shaped so that the pressing force (straining force) of the two elastic rings 84 a and 84 b is sufficiently transmitted to the wiping member 64 .
- the elastic rings 84a and 84b are also pressed by the storage step portion 542 of the frame portion 541. Thereby, the elastic rings 84 a and 84 b have a pressing force (straining force) against the wiping member 64 . Due to this pressing force, the lip portions 741a and 741b of the wiping member 64 elastically press the outer peripheral surface 201a of the ram 201 that reciprocates along the central axis direction. Accordingly, in the wiping section 44 of the wiping unit 1, the wiping member 64 follows the ram 201, and the water-soluble lubricant and lubricating oil on the outer peripheral surface 201a of the ram 201 are scraped off by the lip portion 741b.
- the wipe member 6 may be made of hard resin.
- This hard resin is not particularly limited, but is sufficiently hard and has good slipperiness (low friction). etc.
- the wiping member 6 is made of such a hard resin and has an elastic ring 8 on its outer periphery so that the ram 201 can operate at a high speed (for example, a ram stroke of 24 to 27 inches and a can making speed of 400 cans/min.). (minutes), maximum ram stroke speed 12m/s (seconds)). Since the ram 201 is pressed, the lubricating oil can be reliably scraped off and uneven wear can be reduced. Since the wiping member 6 is made of such a hard resin, it is superior in wear resistance and deterioration resistance to a wiping member made of an elastomer, so that the function can be maintained for a long time. can be sufficiently maintained.
- the elastic ring 8 is also called an "O-ring", and its material is not particularly limited, but may be, for example, commonly used rubber.
- the functions can be sufficiently maintained over a long period of time without frequent replacement of the wiping member 6 and elastic ring 8.
- the configurations of the wiping members 6 (61-64) and the elastic rings 8 (81-83, 84a, 84b) are not limited to those described here, and may be other configurations.
- FIG. 8(a) shows a perspective view of the wiping unit 1 shown in FIG. 1 cut along line BB'
- FIG. 8(b) shows a sectional view along line BB' thereof. It is This line BB' passes through the drain hole 533 of the frame portion 531 and the annular drain groove 242 of the housing body 2.
- FIGS. 8A and 8B show the drain hole 533 of the frame portion 531 and the drain groove 242 of the housing body 2 .
- the drain hole 523 of the frame portion 521 and the drain groove 241 of the housing body 2, and the drain hole 543 of the frame portion 541 and the drain groove 243 of the housing body 2 also have the same configuration as shown in FIGS. Therefore, the description is omitted.
- the wiping unit 1 aims to completely wipe off the lubricating oil on the outer peripheral surface 201a of the ram 201 by the wiping member 61 of the wiping section 41 and return it to the drive mechanism side.
- the lubricating oil that has not been scraped off may cross over the wipe section 41, although the amount is very small.
- the wiping unit 1 has a wiping section 42 in order to scrape off the lubricating oil that has passed over such a wiping section 41 .
- Lubricating oil scraped off from the outer peripheral surface 201a of the ram 201 by the lip portion 7 of the wiping member 62 is drained as shown in FIGS. After flowing into the hole 523 , it flows into the annular drain groove 241 communicating with the drain hole 523 .
- the lubricating oil that has flowed into the drain groove 241 passes through the hole 251 of the drain groove 241 and the outlet 261 that communicates with the hole 251 in a discharge pipe (not shown) connected to the outlet 261. and discharged to the outside, and collected as a collected material.
- the wiping unit 1 includes the drain hole 523, the drain groove 241, the hole 251, and the outflow port 261 as a drain path for discharging and recovering the lubricating oil scraped by the wiping member 62.
- the wiping unit 1 has a wipe section 43 in case the lubricating oil gets over the wipe section 42. As a result, the wiping unit 1 allows the lip portion 731 of the wiping member 63 to more completely wipe off the lubricating oil from the outer peripheral surface 201a of the ram 201 .
- the scraped lubricating oil temporarily accumulates in the groove portion 732 of the wiping member 63 and flows through the gap between the attitude holding portion 733 of the wiping member 63 and the outer peripheral surface 201 a of the ram 201 .
- the lubricating oil flows into the plurality of drain holes 533 as shown in the direction of arrow T1 in FIG.
- the lubricating oil that has flowed into the drain groove 242 flows into the hole 252 provided in the drain groove 242 as shown in the direction of arrow T2 in FIGS.
- an outlet 262 communicating with the hole 252 it flows through a discharge pipe (not shown) connected to the outlet 262, is discharged to the outside, and is collected as a collected material.
- the wiping unit 1 includes the drain hole 533, the drain groove 242, the hole 252, and the outflow port 262 as a drain path for discharging and recovering the lubricating oil scraped by the wiping member 63.
- a hole may be provided in the drain groove 243, and an outflow port communicating with the hole may be provided. That is, the wiping unit 1 includes the drain hole 543, the drain groove 243, and the holes provided in the drain groove 243 (not shown), and an outlet (not shown) communicating with this hole may be provided.
- a discharge pipe (not shown) for discharging the lubricating oil to the outside may be connected to the outflow port.
- the wiping unit 1 completely wipes off the lubricating oil in the wiping section 43 as described above. However, in the unlikely event that the lubricating oil also runs over the wipe section 43, the wiping member 64 of the wiping section 44 scrapes the lubricating oil. All of the lubricating oil is scraped off from the outer peripheral surface 201a of the ram 201 by the lip portion 741b of the wiping member 64 in the wiping section 44 . When the lubricating oil is scraped off by the lip portion 741 b , the lubricating oil flows into the plurality of drain holes 543 and then into the annular drain groove 243 communicating with the drain holes 543 .
- the lubricating oil that has flowed into the drain groove 243 flows into a hole (not shown) provided in the drain groove 243, and flows from an outlet (not shown) communicating with the hole to the outlet. It flows through the connected discharge pipe (not shown), is discharged to the outside, and is collected as a collected material.
- the wiping unit 1 may be provided with a drain path for individually collecting the lubricating oil, which is the collected material, for each of the wiping sections 42-44.
- the amount of lubricating oil collected (discharged) individually collected by each of the wipe sections 42 to 44 can be detected by the sensor.
- This sensor may be provided for each wipe section 42-44.
- a single sensor may detect the total amount of lubricating oil recovered from a plurality of wipe sections 42-44.
- the wiping unit 1 periodically (for example, once a month) detects the amount of lubricating oil collected from each of the wiping sections 42 to 44, so that the operator can check the functional status of the wiping unit 1. , the amount of lubricating oil to replenish or the timing of replacement of the wiping member can be determined.
- the wiping unit 1 has a drain hole and a drain groove similar to the drain paths provided by the wiping sections 42 to 44 in order to discharge and recover the lubricating oil scraped by the wiping member 61.
- a hole provided in the drain groove, and a drain path (not shown) provided with an outlet communicating with the hole may be provided.
- a discharge pipe (not shown) for discharging the lubricating oil to the outside may be connected to the outflow port.
- each wipe section 41-44 can be plugged by attaching a lid (not shown).
- a lid not shown
- the outlet of wipe section 42 is plugged with a lid
- the outlet of wipe section 43 adjacent to wipe section 42 is not plugged with a lid.
- the hydraulic pressure in the wipe section 42 whose outlet is plugged with the lid becomes higher than the hydraulic pressure in the wipe section 43 whose outlet is not plugged with the lid (a hydraulic pressure difference occurs).
- the wiping unit 1 can increase the pressing force (straining force) on the wiping member 6 in the wipe section 4 with increased hydraulic pressure by creating a hydraulic pressure difference between the adjacent wiping sections 4 .
- the pressing force of the wiping member 6 against the outer peripheral surface 201a of the ram 201 is improved, and the power to scrape off the lubricant is also improved, thereby reducing the amount of leakage of the lubricant.
- wipe sections 41 to 44 the outflow port of which wipe section 4 is to be plugged may be arbitrarily determined by selecting the wipe section 4 whose hydraulic pressure is desired to be improved.
- the outlet of one wipe section 4 of wipe sections 41-44 may be plugged as described above, or the outlet of a plurality of wipe sections 41-44 may be plugged. You can plug it.
- the number of subunits 5 (that is, the corresponding number of wipe sections 4) is not limited to four, but may be any other number, provided that the grounding space of the housing body 2 is allowed. The number may be further increased within the range.
- 1 wiping unit 2 housing body, 3 cap body, 31 screw member, 4 wipe section, 21 frame part, 22 storage step part, 23 frame storage part, 41 to 44 wipe section, 5 subunit, 51 to 54 subunit, 61 to 64 wipe members, 81 to 83, 84a, 84b elastic rings, 241, 242, 243 drain grooves, 521, 531, 541 frames
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- Sealing Devices (AREA)
Abstract
Description
図1に示す本実施形態のワイピングユニット1は、往復動するラム用の環状のワイピングユニットであって、環状のハウジング体2と、ハウジング体2に取り付けられた環状のキャップ体3とを備える。キャップ体3は、ハウジング体2に対して着脱可能である。ワイピングユニット1は、キャップ体3が複数のネジ部材31によってハウジング体2に取り付けられることで、蓋がされる。このワイピングユニット1は、4つの環状のサブユニット5(サブユニット51~54)が、ラム201(図7参照)の長手方向(すなわちラム201の中心軸方向)に沿う、ワイピングユニット1の中心軸Oの方向に沿って配列されている。なお、図1~図3、図5、図6、図8等に示すように、ここでの「環状」とは「略円環状」であるが、これに限定されず、本実施形態において、「環状」とは「略楕円環状」等の他の環状形状であってもよい。
ワイピングユニット1は、例えば飲料用缶等の缶体の成形を行う缶ボディメーカーが備える円筒状のラム201に装着される。具体的に、環状のワイピングユニット1は、その中空内に挿入されたラム201の外周面201aをワイプ部材6が押圧するように構成される。缶ボディメーカーにおいて、ラム201は、金属製のカップ体に対し、水溶性潤滑剤(クーラント)をラム201の外周面201aに供給しながら、その中心軸方向に往復動し、絞りしごき加工を行うことで、カップ体から円筒缶を成形する。これと同時に、ラム201は、缶ボディメーカーにおけるラム201の往復動を駆動する駆動機構に対して潤滑油が供給されながら、駆動される。
図2(a)、(b)に示すように、ワイピングユニット1は、4つの環状のサブユニット5(サブユニット51~54)を備えた環状のハウジング体2にキャップ体3が、複数のネジ部材31により取り付けられて蓋がされている。
次に、ワイプ部材6(ワイプ部材61~64)及び弾性リング8(弾性リング81~83、84a、84b)について説明する。図7(a)には、図2(b)に示すサブユニット54における枠部541に収納されたワイプ部材64及び弾性リング84a、84bの部分断面図が示されている。また、図7(b)には、図2(b)に示すサブユニット53における枠部531に収納されたワイプ部材63及び弾性リング83の部分断面図が示されている。なお、図2(a)、(b)に示すように、サブユニット51におけるワイプ部材61及び弾性リング81、サブユニット52におけるワイプ部材62及び弾性リング82は、サブユニット53におけるワイプ部材63及び弾性リング83と構成が同一であるため、図示及び詳細な説明を省略する。
図8(a)には、図1に示すワイピングユニット1をB-B’線で切断した状態の斜視図が示され、図8(b)には、そのB-B’線断面図が示されている。このB-B’線は、枠部531のドレン孔533と、ハウジング体2の環状のドレン溝242とを通過する。そのため、図8(a)、(b)には、枠部531のドレン孔533と、ハウジング体2のドレン溝242とが示されている。なお、枠部521のドレン孔523とハウジング体2のドレン溝241、枠部541のドレン孔543とハウジング体2のドレン溝243も、図8(a)、(b)に示す構成と同様であるため、説明を省略する。
Claims (10)
- 往復動するラム用のワイピングユニットであって、
ラムの外周面を押圧するリップ部が形成された環状のワイプ部材と、
前記ワイプ部材の外周上に配置されて前記リップ部をラムの外周面に押圧するための弾性リングと、
を有するサブユニットを備え、
前記ワイプ部材は、硬質樹脂で形成されている
ことを特徴とするワイピングユニット。 - 前記サブユニットは、その中心軸方向に沿って複数配列されている
ことを特徴とする請求項1に記載のワイピングユニット。 - 前記往復動するラム用のワイピングユニットは、
缶ボディメーカーのラムに装着される
ことを特徴とする請求項1又は2に記載のワイピングユニット。 - 前記硬質樹脂は、硬質ポリウレタンである
ことを特徴とする請求項1乃至3の何れか1項に記載のワイピングユニット。 - 隣接する前記ワイプ部材間に、
前記ワイプ部材により回収された回収物を排出するドレン経路を有する
ことを特徴とする請求項1乃至4の何れか1項に記載のワイピングユニット。 - 前記サブユニットは、
前記ワイプ部材及び前記弾性リングをその中心軸方向片側から収納する収納段部を備える環状の枠部を備える
ことを特徴とする請求項1乃至5の何れか1項に記載のワイピングユニット。 - 前記ワイプ部材及び前記弾性リングをその中心軸方向片側から収納する収納段部を備えると共に、複数の前記枠部を重ねて収納する枠収納部を備える環状のハウジング体と、
前記ハウジング体に取り付けられ、複数の前記枠部が収納された前記枠収納部に蓋をする環状のキャップ体とを
備えることを特徴とする請求項6に記載のワイピングユニット。 - 前記枠部には、その中心軸に対して放射状にドレン孔が設けられ、
前記ハウジング体には、前記枠収納部の内側に前記ドレン孔に連通する環状のドレン溝が設けられている
ことを特徴とする請求項7に記載のワイピングユニット。 - 請求項1乃至8の何れか1項に記載のワイピングユニットを備えた缶ボディメーカーであって、
前記ワイピングユニットは、ラムの外周面に缶成形用の水溶性潤滑剤を供給する側と、潤滑油を供給して前記ラムの往復動を駆動する駆動機構側との境界に配置される
ことを特徴とする缶ボディメーカー。 - 前記ワイピングユニットにおける前記水溶性潤滑剤を供給する側に位置する前記サブユニットは、複数の前記リップ部が形成された前記ワイプ部材と、複数の前記リップ部のそれぞれを前記ラムに押圧するための複数の前記弾性リングとを有する
ことを特徴とする請求項9に記載の缶ボディメーカー。
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Citations (6)
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JPS5074644A (ja) * | 1973-10-25 | 1975-06-19 | ||
JPH07185683A (ja) * | 1993-12-28 | 1995-07-25 | Mitsubishi Materials Corp | Diプレスのラムシール装置 |
JP2512274B2 (ja) | 1992-03-31 | 1996-07-03 | カール・フロイデンベルク | 往復動する棒のためのパッキン |
JP2000190032A (ja) * | 1998-12-22 | 2000-07-11 | Mitsubishi Materials Corp | Diプレスのラムシール装置 |
JP2019528397A (ja) | 2016-08-26 | 2019-10-10 | ブルクハルト コンプレッション アーゲー | オイルワイパパッキン |
JP2020523200A (ja) | 2017-06-13 | 2020-08-06 | ストール マシーナリ カンパニー, エルエルシーStolle Machinery Company, LLC | 取外し可能なパンチマウントアセンブリを使用したラムアセンブリ |
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2021
- 2021-02-12 JP JP2021020967A patent/JP7563217B2/ja active Active
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2022
- 2022-01-28 WO PCT/JP2022/003260 patent/WO2022172778A1/ja active Application Filing
- 2022-01-28 EP EP22752607.6A patent/EP4275809A1/en active Pending
- 2022-01-28 CN CN202280009471.1A patent/CN116806175A/zh active Pending
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2023
- 2023-06-28 US US18/342,970 patent/US20230341054A1/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5074644A (ja) * | 1973-10-25 | 1975-06-19 | ||
JP2512274B2 (ja) | 1992-03-31 | 1996-07-03 | カール・フロイデンベルク | 往復動する棒のためのパッキン |
JPH07185683A (ja) * | 1993-12-28 | 1995-07-25 | Mitsubishi Materials Corp | Diプレスのラムシール装置 |
JP2000190032A (ja) * | 1998-12-22 | 2000-07-11 | Mitsubishi Materials Corp | Diプレスのラムシール装置 |
JP2019528397A (ja) | 2016-08-26 | 2019-10-10 | ブルクハルト コンプレッション アーゲー | オイルワイパパッキン |
JP2020523200A (ja) | 2017-06-13 | 2020-08-06 | ストール マシーナリ カンパニー, エルエルシーStolle Machinery Company, LLC | 取外し可能なパンチマウントアセンブリを使用したラムアセンブリ |
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US20230341054A1 (en) | 2023-10-26 |
JP2022123575A (ja) | 2022-08-24 |
CN116806175A (zh) | 2023-09-26 |
EP4275809A1 (en) | 2023-11-15 |
JP7563217B2 (ja) | 2024-10-08 |
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