JP2019000901A - Hose clamp structure in tube expanding machine - Google Patents

Abstract

To provide a hose clamp structure, of which a conical degree can be confirmed, in a tube expanding machine.SOLUTION: A body 1 comprises two haft parts 2, 3 which are openably located so as to brought into pivotal contact with one end thereof, and a through hole 11, which penetrates a shell is formed when two half parts are closed. Each through hole has a conical surface 12 at one end thereof, and the conical surface comprises an inspection area 6 including a top edge, a bottom edge and an identification region. The identification region is provided within a range of a position of an end edge 411 which becomes a maximum opening when an end part 41 of the shell has a correct conical degree. When tube shell expanding work is completed, an end part having a bell mouth is bonded to the conical surface, and in the case that the end edge is not positioned even on the top edge and even under the bottom edge and is positioned within the identification region in teh conical surface when becoming the maximum opening, it can be confirmed that the end part having the bell mouth has a correct conical degree. Thus, this invention is constituted.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a hose clamp structure in a pipe expander, and more particularly to an improved hose clamp structure in a pipe expander.

  As shown in FIG. 7, in the hose clamp structure in the conventional pipe expander, the main body 91 is composed of two long halves 92 installed so as to pivot at one end, and these two halves 92 are It can be opened and closed at the other end. In the main body 91, when the two halves 92 are closed, a plurality of through holes 93 are formed. The tube body 94 to be expanded is penetrated through the through-hole 93 and fixed so as to be sandwiched, and then the main body 91 is aligned with a position where the expanded tube 95 is to be expanded to form an end portion having a bell mouth. As described above, the pipe expansion work is performed on the pipe body 94 by the pipe expansion machine 95.

  In the hose clamp structure in the conventional pipe expansion machine, when fixing the pipe body 94 to be expanded, the pipe body 94 is passed through the through hole 93 and then the two half parts 92 are closed to sandwich the pipe body 94. After the pipe expansion work is completed by the operator, and the pipe expansion work is completed, the operator measures the conicity at the end of the tube body 94 with a ruler and determines whether it is accurate. It should be attached to the joint after confirmation. However, in fact, it is troublesome for the operator to take out the tube 94 from the main body 91 and measure it with a ruler. Therefore, the accuracy of the cone degree at the end of the tube 94 cannot be confirmed firmly, and the tube 94 May be attached to the joint. As a result, when the fluid in the tube 94 leaks from the joint, it is discovered that the expanded cone degree of the tube 94 is not correct.

  Accordingly, it is an object of the present invention to solve the problem of the hose clamp structure in the conventional pipe expander.

  An object of the present invention is to provide a hose clamp structure for a pipe expander in order to solve the above-described problems. By installing the inspection area on the conical surface, it is possible to immediately visually check whether the tip of the tube is located in the identification area of the inspection area after the operator has expanded the tube. The operator achieves an effect that allows the operator to quickly and accurately inspect whether or not the end of the tubular bell mouth having the correct cone degree is accurate, and it is actually troublesome to measure with a ruler. The problem of not being able to improve.

  Another object of the present invention is to provide a shielding plate on one of the two halves so as to block the tube passing through the through hole at the maximum width of the conical surface. As a result, the end edge of the tube body before being expanded is positioned at a portion having the maximum width of the conical surface, and when expanding the tube, the conicity at the end of the tube body has optimum accuracy.

  In order to achieve the above object, the hose clamp structure in the pipe expander according to the present invention has a main body composed of two long halves, and these two halves are installed to be openable and closable so as to pivot on one end. When these two halves are closed, a plurality of through-holes through which pipe bodies having different pipe diameters can be formed are formed. Each through-hole formed at the time of closing has a conical surface at one end, and the end of the tubular body is expanded to a bell mouth by the tube expander along the conicity of the conical surface. Its characteristics are as follows.

The conical surface is provided with an inspection area, and the inspection area is located between the apex and the bottom of the conical surface, and the inspection area is identified by the top edge, the bottom edge, and the top edge and the bottom edge. This identification area is provided within the range of the edge position where the end of the tube is the maximum opening when the accuracy of the cone is accurate, and when the tube expansion operation of the tube is completed, Attach the end with the mouse to the conical surface and at the conical surface, the edge is located in the identification area, not above the top edge or below the bottom edge so that it is the largest opening In this case, it can be confirmed that the bell mouth has an accurate degree of drilling.

A pair of slide grooves are provided on the bottom and top on one side of one of these two halves, and the vertically folded side plate has a shielding plate on one side, and is locked downward on the bottom side of the side plate. A top locking portion is provided at each of both ends on the top side of the side plate, and the side plate has a bottom locking portion and two upper locking portions provided in the pair of slide grooves. Can be slid along the longitudinal direction of the half that is located, and the shielding plate is slid together with the side plate to each conical surface, and the through-hole is at a position where the conical surface is at its maximum width. And the penetrating tube is blocked from above the through hole.

  The main body is made of aluminum, and the surface thereof is anodized. The inspection area in each conical surface is carved by laser processing.

It is a perspective view which shows the hose clamp structure which concerns on this invention. It is a perspective view which shows the state at the time of combining and using the hose clamp structure and pipe expander which concern on this invention. It is sectional drawing which shows the state at the time of combining and using the hose clamp structure and tube expander which concern on this invention. It is a top view which shows the structure in the conical surface of the examination area which concerns on this invention. It is a schematic diagram when the edge part of the expanded pipe body which concerns on this invention is located in a conical surface. Among them, there are two edges indicated by double dotted lines, one of which is higher than the top edge of the viewing area, and the other is lower than the bottom edge of the viewing area. That is, both are out of the range of the identification area. It is another schematic diagram when the edge part of the expanded pipe body which concerns on this invention is located in a conical surface. Among them, the edge is located within the identification area. It is a perspective view which shows the state at the time of using the conventional hose clamp structure and it and a pipe expander in combination.

  The present invention will be described with reference to FIGS. What is shown in the drawings is an embodiment or a preferred embodiment selected in the present invention, and the embodiment described here does not limit the scope of the claims.

The present invention provides a hose clamp structure in a pipe expander. As a preferred embodiment selected here, as shown in FIG. 1, the main body 1 is composed of two long halves 2, 3 and these two halves are installed to be openable and closable so as to be pivoted at one end. When the two halves 2 and 3 are closed, a plurality of through holes 11 through which pipe bodies having different pipe diameters can be formed are formed. In these two halves 2 and 3, each through hole 11 formed at the time of closing has a conical surface 12 at one end, and when the end of the tube body 4 is expanded by the tube expansion machine 5, the conical surface 12. It becomes a bell mouth along the degree of cone. As shown in FIGS. 2 to 3, the pipe expander 5 includes a body portion 51 and a bolt 52, the bolt 52 includes a handle 53 outside the body portion 51, and a conical head in the body portion 51. 54. When the tubular body 4 passes through the through hole 11 and is placed in the body portion 51, the bolt 52 is rotated and moved downward by the operation of the handle 53, and the end having the bell mouth along the conical surface 12 is moved. One end of the tubular body 4 is expanded with the cone degree of the conical head 54 so as to become the portion 41.

As shown in FIG. 4, each conical surface 12 is provided with an inspection area 6, and the inspection area 6 is located between the apex and the bottom surface of the conical surface 12, and the inspection area 6 includes a top edge 61 and a bottom. The edge 62 and an identification area 63 between the top edge 61 and the bottom edge 62, the identification area 63 of the edge 411 being the maximum opening when the end 41 of the tube 4 has the correct conicity. It is provided within the range of the position.

As shown in FIGS. 1-3, in a present Example, a pair of slide groove | channel 21 is provided along the bottom part and top part in the one side of the half part 2, and the shielding board 22 is the side board 23 bent vertically on one side. A lower locking portion 231 is provided on the bottom side of the side plate 23, and an upper locking portion 232 is provided on each of both ends of the shielding plate on the top side of the side plate 23. A stop portion 231 and two upper locking portions 232 are provided in the slide groove 21 and can slide along the longitudinal direction of the half portion 2, and the shielding plate 22 is slid to the conical surfaces 12 together with the side plates 23. The shielding plate 22 shields the through hole 11 and blocks the penetrating pipe from above the through hole 11 at a position where the conical surface 12 is located at the maximum width. The shielding plate 22 and the side plate 23 can also be provided in the half 3. In this embodiment, the main body 1 is made of aluminum, and the surface thereof is anodized. The inspection area 6 in each conical surface 12 is carved by laser processing.

When the tube 4 is expanded, the operator attaches the end 41 having the bell mouth to the conical surface, and the end 411 that becomes the largest opening is located in the discriminating area 63 in the conical surface 12. Check if it is in In this case, it is confirmed that the bell mouth has an accurate degree of drilling. As shown in FIG. 5, after the tube expansion, when the edge 411 at the end 41 of the tubular body 4 is positioned on the top edge 61, the inspection area 6 is completely shielded by the end 41, or the edge When 411 is located below the bottom edge 62, the viewing area 6 is completely exposed. In any of these two situations, it can be confirmed that the end portion 41 of the tubular body 4 after the tube expansion does not have an accurate degree of cone. In addition, as shown in FIG. 6, when the end edge 411 at the end portion 41 of the tubular body 4 is located not in the top edge 61 and under the bottom edge 62 but in the identification region 63 after the tube expansion, The person does not need to confirm with a ruler, and can confirm that the end 41 having the bell mouth has an accurate degree of conicality.

The advantages of the present invention can be easily understood from the above description as follows.

1. By installing the inspection area 6 on the conical surface 12, an operator who performs the tube expansion work expands the tube, and then the edge 411 of the tube 4 is positioned in the identification area 63 of the inspection area 6. Whether the end of the tubular body 4 having the bell mouth has an accurate conicity can be quickly and accurately inspected. Achieved a great effect. Conventionally, it has been necessary to further measure with a ruler, but the present invention can omit such troublesome measurement work for an operator and also has an effect of confirming whether or not the degree of accuracy is accurate. The efficiency can be improved.

2, one of the two halves 2 and 3 is provided with a shielding plate 22 to block the tubular body 4 passing through the through hole 11 where the conical surface 12 has the maximum width. Thus, the end edge of the tube body 4 before being expanded is positioned so as to have the maximum width of the conical surface 12. Thus, it is possible to avoid that the portion of the tubular body 4 protruding from the through hole 11 is too long or too short, and when the tube expansion work is performed, the cone degree at the end portion 41 of the tubular body 4 is made more accurately. Is advantageous.

Claims (3)

The main body is composed of two long halves, and the two halves are installed to be openable and closable so as to be pivoted to one end, and when the two halves are closed, pipe bodies having different diameters are formed. A plurality of penetrating through holes are formed, and the two halves at the time of closing have a conical surface at one end of each through hole, and the end of the tubular body is A hose clamp structure in a pipe expander that is expanded to a bell mouth along the conicity of the conical surface,
An inspection area is installed on the conical surface, and the inspection area is located between the apex and the bottom of the conical surface, and the inspection area includes the top edge, the bottom edge, and the top edge and the bottom edge. The identification region is provided within the range of the edge position so that the end of the tube has a maximum opening when the end of the tube has an accurate cone, and the tube is expanded. When attached, the end with the bell mouth is attached to the conical surface, and the edge when it becomes the largest opening is not above the top edge or below the bottom edge of the conical surface, A hose clamp structure in a tube expansion machine, wherein the end portion having a bell mouth can be confirmed to have an accurate degree of cone when located inside. A pair of slide grooves are provided on the bottom and top on one side of the two halves, the side plate bent vertically is provided with a shielding plate on one side, and is locked to the bottom side of the side plate. Part is provided, one upper locking part is provided on each side of the shielding plate on the top side of the side plate, so that it can slide along the longitudinal direction of the half where the side plate is located, The lower locking portion and the two upper locking portions are provided in the pair of slide grooves, respectively, and the shielding plate can be slid to each of the conical surfaces together with the side plate. 2. The hose in a pipe expander according to claim 1, wherein the shielding plate blocks a tubular body penetrating from above the existing through hole by shielding the through hole at a position having a width of Clamp structure. The hose clamp structure in a pipe expander according to claim 1, wherein the main body is made of aluminum, anodized on the surface thereof, and the inspection area of each conical surface is engraved by laser processing. .