Spiral protector winding apparatus

Abstract

To provide an apparatus for automatically, easily, and neatly winding a spiral protector around a rubber hose.SOLUTION: A spiral protector winding apparatus 100 has: a mandrel 1; a mandrel driving device 2; a grooved body 3; a protector guide 4; and a protector guide driving device 5. The mandrel 1 holds a rubber hose 120. The mandrel driving device 2 rotates the mandrel 1. A spiral protector 130 is accommodated in the grooved body 3. The protector guide 4 guides the spiral protector 130. The protector guide driving device synchronizes with rotation of the mandrel 1 to move the protector guide 4 toward the unattached side of the spiral protector 130 between axial directions.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a spiral protector winding device for winding a spiral protector around a rubber hose.

Background Art

[0002] Patent Document 1 describes an apparatus for winding a spiral protector around a rubber hose. The apparatus described in Patent Document 1 includes a support rod for supporting the spiral protector, a mandrel for holding the rubber hose, and a rotary drive device for rotating the mandrel. The support rod 5 is "fixed at the other end to a support column 4 erected on a base 3" (see [Example] and Fig. 1 of Patent Document 1, etc.). In the apparatus described in Patent Document 1, "the support rod and the mandrel are relatively inclined on the same plane so that the side of the spiral protector supported by the support rod is substantially perpendicular to the length direction of the rubber hose held by the mandrel" (see [Claims for Utility Model Registration] of Patent Document 1, etc.). Thereby, "when the rotary drive motor 8 is driven to rotate the mandrel 6 and the rubber hose 2, the rubber hose 2 held by the mandrel 6 rotates, the spiral protector 1 is sequentially drawn out from the tip portion 1a, and is automatically wound around the outer periphery of the rubber hose 2 without gaps and without overlapping" (see [Operation] of Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the device described in Patent Document 1, "the support rod and the mandrel are relatively inclined on the same plane." However, it is difficult to adjust the inclination between the support rod and the mandrel so as to obtain the effect described in Patent Document 1, that is, the effect that "the rubber hose 2 is automatically wound around the outer periphery thereof without gaps and without overlapping."

[0005] An object of the present invention is to provide a device capable of automatically, simply, and orderly winding a spiral protector around a rubber hose.

Means for Solving the Problems

[0006] The spiral protector winding device disclosed in this specification includes a mandrel that holds the rubber hose by inserting the rubber hose, a mandrel driving device that rotates the mandrel, a groove body that is disposed on the side of the mandrel along the axial direction of the mandrel and houses a spiral protector having a shape obtained by spirally cutting a resin tube, a protector guide that is disposed between the mandrel and the groove body and guides the spiral protector that is to be wound around the rubber hose, and a protector guide driving device that moves the protector guide in synchronization with the rotation of the mandrel in the direction of the side where the spiral protector is not attached in the axial direction.

Effects of the Invention

[0007] A spiral tape winding device capable of automatically, simply, and orderly winding a spiral protector around a rubber hose can be provided.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Mode for Carrying Out the Invention

[0009] Hereinafter, preferred embodiments of the present invention will be described.

[0010] FIGS. 1 and 2 show a spiral protector winding device 100. In FIGS. 1 and 2, the spiral protector winding device 100 is arranged on a gantry 110. FIG. 1 shows a state where the spiral protector 130 is wound around the rubber hose 120. In FIG. 2, the rubber hose 120 and the spiral protector 130 shown in FIG. 1 are not illustrated.

[0011] The spiral protector winding device 100 is a device for winding the spiral protector 130 around the rubber hose 120 as shown in FIG. 1. The rubber hose 120 has a rubber layer. The spiral protector 130 has a cylindrical form and is in a shape where a resin tube (resin tube) is cut in a spiral shape.

[0012] As shown in FIG. 2, the spiral protector winding device 100 includes a mandrel 1, a mandrel driving device 2 existing in a case 101, a groove body 3, a protector guide 4, and a protector guide driving device 5 in which some members exist in the case 101. The configurations of the mandrel driving device 2 and the protector guide driving device 5 inside the case 101 will be described later with reference to FIG. 3.

[0013] As shown in Fig. 2, the mandrel 1 is supported by the first wall portion 61. The first wall portion 61 closes one opening of the case 101 in the axial direction of the mandrel 1. The first wall portion 61 is erected on the table 110T of the gantry 110. The mandrel 1 is rotatably supported by the first wall portion 61. The axial direction of the mandrel 1 is substantially horizontal.

[0014] As shown in Fig. 2, the mandrel 1 has a portion existing outside the case 101 (hereinafter referred to as the "portion outside the case 101") and a portion existing inside the case 101 (hereinafter referred to as the "portion inside the case 101") as shown in Fig. 3. In the axial direction of the mandrel 1, the portion outside the case 101 is longer than the portion inside the case 101. As shown in Fig. 1, the rubber hose 120 is inserted into the portion outside the case 101 of the mandrel 1.

[0015] Of both axial ends of the mandrel body 11, a mandrel driving device 2 described later is connected to the end existing inside the case 101 (hereinafter referred to as the "end inside the case 101"). Near the end existing outside the case 101 (hereinafter referred to as the "end outside the case 101") of both axial ends of the mandrel body 11, a mandrel holder 62 is arranged. The mandrel holder 62 is arranged below the mandrel 1. The mandrel holder 62 is erected on the table 110T of the gantry 110. The mandrel holder 62 rotatably supports the mandrel 1 and the rubber hose 120 held by the mandrel 1. The first wall portion 61 and the mandrel holder 62 are separated from each other in the axial direction of the mandrel 1.

[0016] As shown in Fig. 2, the mandrel 1 has a mandrel body 11 and a fixing portion 12. The fixing portion 12 exists in the middle portion in the axial direction of the mandrel 1.

[0017] The mandrel body 11 is a long bar-shaped in one direction. The mandrel body 11 may be columnar or cylindrical. The mandrel body 11 shown in Fig. 2 is cylindrical.

[0018] The fixing part 12 is located outside the case 101. The fixing part 12 is located at a position close to the first wall part 61. In FIG. 2, the fixing part 12 is located at a position adjacent to the first wall part 61.

[0019] The outer diameter of the fixing part 12 is larger than the outer diameter of the mandrel body 11. The fixing part 12 has a tapered shape with an increasing outer diameter as it approaches the first wall part 61. The fixing part 12 has a tapered shape with a decreasing outer diameter as it approaches the outer end of the case of the mandrel 1.

[0020] As shown in FIG. 1, the outer part of the case of the mandrel 1 is inserted inside the rubber hose 120. One end of the rubber hose 120 is fixed to the fixing part 12 by contacting the tapered fixing part 12. Thereby, the rubber hose 120 does not rotate around the axis of the mandrel 1. The rubber hose 120 is held by the mandrel 1.

[0021] FIG. 3 shows a view of the inside of the case 101. The rubber hose 120 and the spiral protector 130 are not shown in FIG. 3.

[0022] The mandrel driving device 2 is located inside the case 101. The mandrel driving device 2 is fixed to the second wall part 63. The second wall part 63 closes the other opening of the case 101 in the axial direction of the mandrel 1. The second wall part 63 is erected on the table 110T of the gantry 110. The inner end of the case of the mandrel 1 is connected to the mandrel driving device 2.

[0023] The mandrel driving device 2 is, for example, a motor. By the mandrel driving device 2, the mandrel 1 rotates around the axis of the mandrel 1.

[0024] As shown in FIG. 2, the groove body 3 is arranged on the side of the mandrel 1. The groove body 3 is arranged on the side of the outer part of the case of the mandrel 1. The groove body 3 is arranged on the side from the fixing part 12 of the mandrel 1 to the outer end of the case. The groove body 3 is separated from the mandrel 1.

[0025] The groove body 3 is arranged along the axial direction of the mandrel 1. The groove body 3 is long in a direction parallel to the axial direction of the mandrel 1. The length of the groove body 3 is equal to the length of the portion of the mandrel 1 outside the case, or longer than the length of the portion of the mandrel 1 outside the case.

[0026] The groove body 3 has a groove portion 31 with an open upper end and a lid portion 32. As shown in FIG. 1, a spiral protector 130 is accommodated in the groove portion 31. The groove portion 31 exists from one end to the other end in the longitudinal direction of the groove body 3.

[0027] The lid portion 32 closes a part of the upper end opening of the groove portion 31. The lid portion 32 is connected to the upper end portion of the side portion 33 of the groove body 3. The lid portion 32 is connected to the side portion 33 so as to be able to open and close a part of the upper end opening of the groove portion 31. The lid portion 32 is connected to the side portion 33 by, for example, a hinge.

[0028] The width of the lid portion 32 is smaller than the width of the upper end opening of the groove portion 31. The "width" here is the length in the horizontal direction and perpendicular to the longitudinal direction of the groove body 3. Also, the "width direction" described later is the direction in the horizontal direction and perpendicular to the longitudinal direction of the groove body 3. The lid portion 32 is long in the longitudinal direction of the groove body 3.

[0029] In the state where the lid portion 32 is closed, from one end to the other end in the longitudinal direction of the groove body 3, a part in the width direction of the groove portion 31 is closed by the lid portion 32. In the state where the lid portion 32 is closed, from one end to the other end in the longitudinal direction of the groove body 3, the other part in the width direction of the groove portion 31 is not blocked by the lid portion 32. As shown in FIG. 1, when the spiral protector 130 is present in the groove portion 31, it can be confirmed that the spiral protector 130 is present in the groove portion 31 even when the lid portion 32 is closed.

[0030] As shown in FIG. 2, a protector guide 4 is arranged between the mandrel 1 and the groove body 3. The protector guide 4 is fixed to the main belt 58 shown in FIG. 4. The main belt 58 is a part of a protector guide driving device 5 as described later.

[0031] The protector guide 4 guides the spiral protector 130 shown in FIG. 1. The protector guide 4 is moved along the axial direction of the mandrel 1 by a protector guide driving device 5 described later. The protector guide 4 moves in a direction substantially parallel to the axial direction of the mandrel 1.

[0032] FIG. 5 shows an enlarged view of the protector guide 4 shown in FIG. 4 and its surroundings. As shown in FIG. 5, the protector guide 4 has a guide fixing portion 41, a handle 42, a support guide 43, a guide adjustment portion 44, a side piece guide 45, and a guide roller 46.

[0033] The guide fixing portion 41 is fixed to the main belt 58. The guide fixing portion 41 fixes the protector guide 4 to a protector guide driving device 5 described later.

[0034] The handle 42 is attached to the guide fixing portion 41. The handle 42 is used, for example, when adjusting the fixing position of the protector guide 4.

[0035] The support guide 43 has a support member 43A and a support rod 43B. The support rod 43B is connected to the support member 43A.

[0036] The support member 43A is fixed to the guide fixing portion 41. A part of the support member 43A is disposed in the groove portion 31.

[0037] The support rod 43B is disposed in the groove portion 31. The support rod 43B is substantially parallel to the longitudinal direction of the groove body 3. The support rod 43B is inserted into the spiral protector 130 accommodated in the groove portion 31. The support rod 43B rotatably supports the spiral protector 130.

[0038] The length of the support rod 43B is shorter than the length of the portion of the mandrel 1 outside the case. The length of the support rod 43B may be, for example, a length of 50 mm or more and 200 mm or less.

[0039] The guide adjustment part 44 is fixed to the guide fixing part 41 by a fixture 48 such as a bolt. By loosening the fixture 48, the guide adjustment part 44 can be rotated around the fixture 48.

[0040] A side piece guide 45 is attached to the guide adjustment part 44. The side piece guide 45 is a plate-like member that is continuous from the groove body 3 to the rubber hose 120 when the protector guide 4 is viewed from above.

[0041] As shown in FIG. 5, the side piece guide 45 is inclined with respect to the axial direction of the rubber hose 120. In the axial direction of the rubber hose 120, a spiral protector 130 drawn out from the groove part 31 exists on one side of the side piece guide 45. The side part of the spiral protector 130 is in contact with the side piece guide 45. The side piece guide 45 is inclined in the same direction as the inclination direction of the spiral protector 130 with respect to the axial direction of the rubber hose 120.

[0042] The inclination angle of the side piece guide 45 can be adjusted by the guide adjustment part 44. By loosening the fixture 48 and rotating the guide adjustment part 44, the angle of the side piece guide 45 with respect to the axial direction of the rubber hose 120 in the horizontal direction can be adjusted. The axial direction of the rubber hose 120 is substantially the same as the axial direction of the mandrel 1.

[0043] When the protector guide 4 is viewed from above, the side piece guide 45 has a portion overlapping the groove part 31 and a portion overlapping the rubber hose 120. As shown in FIG. 6, the side piece guide 45 has a recess 45P that avoids the groove body 3 and a recess 45Q that avoids the rubber hose 120.

[0044] As shown in FIG. 5, a guide roller 46 is fixed to the side piece guide 45. The guide roller 46 is perpendicular to the side piece guide 45. The guide roller 46 is cylindrical as shown in FIGS. 5 and 6. The guide roller 46 may or may not rotate.

[0045] The guide roller 46 is present on the side where the spiral protector 130 exists with respect to the side piece guide 45 in the axial direction of the rubber hose 120. The guide roller 46 is present on the side where the spiral protector 130 of the rubber hose 120 is not attached in the axial direction of the rubber hose 120. The guide roller 46 is present on the side opposite to the guide fixing portion 41, the handle 42, the support member 43A, and the guide adjustment portion 44 with respect to the side piece guide 45 in the axial direction of the rubber hose 120.

[0046] FIG. 6 shows a front view of the spiral protector winding device 100 as viewed from the guide roller 46 side. FIG. 6 shows the rubber hose 120 and the spiral protector 130. In a state where the rubber hose 120 is held by the mandrel 1, the guide roller 46 is present at a position lower than the upper surface level of the rubber hose 120. In this specification, "the guide roller 46 is present at a position lower than the upper surface level of the rubber hose 120" means that at least a part of the guide roller 46 is present at a position lower than the upper surface level of the rubber hose 120.

[0047] As shown in FIG. 6, the lower surface level of the guide roller 46 is present at a position lower than the upper surface level of the rubber hose 120. The upper surface level of the guide roller 46 is present at a position lower than the upper surface level of the rubber hose 120. The lower surface level of the guide roller 46 is present at a position lower than the upper surface level of the mandrel 1. The upper surface level of the guide roller 46 is present at a position substantially the same height as the upper surface level of the mandrel 1.

[0048] The spiral protector 130 drawn out from the groove portion 31 is wound around the rubber hose 120 through the lower side of the guide roller 46 as shown in FIG. 6. The spiral protector 130 drawn out from the groove portion 31 is in contact with the lower surface of the guide roller 46.

[0049] Figure 3 shows the internal structure of the case 101. As shown in Figure 3, the protector guide driving device 5 includes a first pulley 51, a second pulley 52, a pulley belt 53, a first gear 54, a second gear 55, a third pulley 56, a fourth pulley 57, and a main belt (belt) 58. The above members except the fourth pulley 57 and the main belt 58 are arranged inside the case 101.

[0050] The first pulley 51 is fixed to the mandrel 1. The first pulley 51 rotates integrally with the mandrel 1. Below the first pulley 51, the second pulley 52 is arranged. The second pulley 52 is rotatably held by the first substrate 71. A pulley belt 53 is stretched between the first pulley 51 and the second pulley 52. The pulley belt 53 is an endless belt.

[0051] On the side of the first substrate 71 opposite to the second pulley 52, the first gear 54 is present. The first gear 54 is rotatably held by the first substrate 71. The first gear 54 is connected to the second pulley 52 by a shaft (not shown). The first gear 54 and the second pulley 52 rotate integrally about a shaft (not shown).

[0052] The second gear 55 is arranged to mesh with the first gear 54. The second gear 55 is rotatably held by the second substrate 72. The teeth of the first gear 54 and the teeth of the second gear 55 are engaged. When the first gear 54 rotates, the second gear 55 also rotates.

[0053] On the side of the second substrate 72 opposite to the second gear 55, the third pulley 56 is arranged. The third pulley 56 is rotatably held by the second substrate 72. The third pulley 56 is connected to the second gear 55 by a shaft (not shown). The third pulley 56 and the second gear 55 rotate integrally.

[0054] The third pulley 56 is located on the side of the mandrel 1. The third pulley 56 is arranged between the mandrel 1 and the groove body 3.

[0055] In a direction parallel to the axial direction of the mandrel 1, a fourth pulley 57 exists on a straight line passing through the third pulley 56. The fourth pulley 57 is located at a position close to the outer end of the case 101 of the mandrel 1. While the third pulley 56 is close to the inner end of the case 101 of the mandrel 1, the fourth pulley 57 is close to the outer end of the case 101 of the mandrel 1. The fourth pulley 57 is rotatably held by the gantry 110.

[0056] The main belt 58 is stretched between the third pulley 56 and the fourth pulley 57. The main belt 58 is an endless belt. The main belt 58 is substantially parallel to the axial direction of the mandrel 1. The main belt 58 is disposed between the mandrel 1 and the groove body 3 (see FIGS. 4 and 5).

[0057] The protector guide drive device 5 operates as follows.

[0058] When the mandrel 1 rotates by the mandrel drive device 2 shown in FIG. 3, the first pulley 51 fixed to the mandrel 1 rotates. As a result, the pulley belt 53 moves, and the second pulley 52 rotates. With the rotation of the second pulley 52, the first gear 54 rotates. With the rotation of the first gear 54, the second gear 55 meshing with the first gear 54 rotates. With the rotation of the second gear 55, the third pulley 56 rotates. As a result, the main belt 58 moves, and the fourth pulley 57 rotates.

[0059] The protector guide 4 is fixed to the upper portion of the main belt 58 between the third pulley 56 and the fourth pulley 57. In the present embodiment, when the mandrel 1 is rotating, the upper portion of the main belt 58 between the third pulley 56 and the fourth pulley 57 moves toward the fourth pulley 57. When the mandrel 1 is rotating, as the main belt 58 moves, the protector guide 4 moves in a direction approaching the fourth pulley 57.

[0060] As shown in Fig. 1, in the axial direction of the mandrel 1, the spiral protector 130 is wound around the rubber hose 120 from the fixed portion 12 side of the mandrel 1 toward the outer end portion side of the case 101 of the mandrel. In the axial direction of the mandrel 1, with respect to the protector guide 4, the fixed portion 12 side of the mandrel 1 is the mounting side where the spiral protector 130 is wound around the rubber hose 120. In the axial direction of the mandrel 1, with respect to the protector guide 4, the outer end portion side of the case 101 of the mandrel 1 is the non-mounting side where the spiral protector 130 is not wound around the rubber hose 120. The protector guide 4 moves to the non-mounting side of the spiral protector 130 in the axial direction of the mandrel 1.

[0061] According to the above configuration, in synchronization with the rotation of the mandrel 1, the protector guide 4 moves to the non-mounting side of the spiral protector 130. "In synchronization with the rotation of the mandrel 1, the protector guide 4 moves to the non-mounting side of the spiral protector 130" means that as the mandrel 1 rotates, the protector guide 4 moves to the non-mounting side of the spiral protector 130. While the mandrel 1 is rotating, the protector guide 4 continues to move to the non-mounting side of the spiral protector 130.

[0062] In Fig. 5, the length of one pitch in the axial direction of the spiral protector 130 wound around the rubber hose 120 is shown as "P". The spiral protector 130 is cut in a spiral shape and thus forms a single band. By winding the band in a spiral shape, it forms a cylindrical shape. "P" is the length in the axial direction from one side to the other side of the band of the spiral protector 130 in the cylindrical spiral protector 130 wound around the rubber hose 120. The above "axial direction" is both the axial direction of the spiral protector 130 and the axial direction of the mandrel 1.

[0063] Next, a method of winding the spiral protector 130 around the rubber hose 120 using the spiral protector winding device 100 shown in Fig. 2 will be described.

[0064] In the spiral protector winding device 100 shown in FIG. 2, the mandrel 1 is inserted inside the rubber hose 120. The rubber hose 120 is held in a substantially horizontal state by the mandrel 1. Open the lid 32 of the groove body 3, and place the spiral protector 130 in the groove 31. At this time, insert the support rod 43B shown in FIG. 5 inside the spiral protector 130. Pull out the tip of the spiral protector 130 housed in the groove body 3 and hang it over the upper surface of the rubber hose 120 from below the guide roller 46 as shown in FIG. 6. As shown in FIG. 1, close the lid 32 of the groove body 3.

[0065] As shown in FIG. 1, the rubber hose 120 rotates, and the spiral protector 130 is wound around the rubber hose 120. In synchronization with the rotation of the mandrel 1, the protector guide 4 guides the spiral protector 130 while moving to the unmounted side of the spiral protector 130.

[0066] With the spiral protector winding device 100, the spiral protector 130 can be automatically and simply wound around the rubber hose 120 neatly.

[0067] In addition to the above, the following effects can be obtained.

[0068] The protector guide 4 moves to the unmounted side of the spiral protector 130 by one pitch in the axial direction of the spiral protector 130 for each rotation of the mandrel 1. Thereby, the protector guide 4 can guide the spiral protector 130 in an appropriate state. "Guiding in an appropriate state" means guiding the spiral protector 130 without leaving the spiral protector 130 and without pressing the spiral protector 130 against the unmounted side. Thereby, the spiral protector 130 can be wound around the rubber hose 120 without gaps and without overlapping.

[0069] Also, as shown in FIG. 3, the protector guide drive device 5 is connected to the mandrel 1. Thereby, the protector guide 4 can be moved in synchronization with the rotation of the mandrel 1. Usually, since the rotation speed of the mandrel 1 is constant, the moving speed of the protector guide 4 also becomes constant in synchronization with the rotation of the mandrel 1. Further, a power source for moving the protector guide 4 does not need to be separately prepared from the mandrel drive device 2.

[0070] Also, the protector guide 4 shown in FIG. 5 has a support guide 43. A part of the support member 43A of the support guide 43 is disposed in the groove portion 31. When the protector guide 4 is moving, it is possible to guide the spiral protector 130 in the groove portion 31 by the support member 43A in the groove portion 31. By guiding the spiral protector 130 in the groove portion 31, the spiral protector 130 in the groove portion 31 can be prevented from shifting in the axial direction. Thereby, it is suppressed that the spiral protector 130 sags or protrudes from the groove portion 31 in the groove portion 31.

[0071] Also, the protector guide 4 shown in FIG. 5 has a support rod 43B. In the groove portion 31, since the support rod 43B is inserted into the spiral protector 130, the spiral protector 130 in the groove portion 31 can be prevented from shifting in the axial direction. Thereby, it is suppressed that the spiral protector 130 sags or protrudes from the groove portion 31 in the groove portion 31.

[0072] Also, as shown in FIG. 5, the length of the support rod 43B is shorter than the length of the groove body 3. The length of the support rod 43B is shorter than the length of the outer portion of the case 101 of the mandrel 1 shown in FIG. 2. The length of the support rod 43B is shorter than the axial length of the spiral protector 130 before being wound around the rubber hose 120. Since the support rod 43B is short, it is easy to insert the support rod 43B into the spiral protector 130. Also, even if the support rod 43B is short, when the protector guide 4 moves to the non-attached side, the spiral protector 130 accommodated in the groove body 3 shown in FIG. 4 is pulled out from the groove body 3 with the support rod 43B inserted. Also, even when the protector guide 4 moves to the non-attached side, since the support rod 43B is short, the support rod 43B does not protrude from one end of the groove body 3. Therefore, in the longitudinal direction of the spiral protector winding device 100, it is not necessary to secure a wide space on the side of the fourth pulley 57 shown in FIG. 1.

[0073] Also, as shown in FIG. 5, the protector guide 4 has side piece guides 45. By the side piece guides 45, the side surface of the spiral protector 130 pulled out from the groove portion 31 is guided to the rubber hose 120. Thereby, the spiral protector 130 can be wound around the rubber hose 120 without gaps and without overlapping.

[0074] Also, in the protector guide 4 shown in FIG. 5, by loosening the fixture 48 and rotating the guide adjustment portion 44, the angle of the side piece guide 45 in the horizontal direction with respect to the axial direction of the mandrel 1 can be adjusted. According to the inclination direction of the spiral of the spiral protector 130, by changing the above angle of the side piece guide 45, the inclination direction of the side piece guide 45 can be made the same as the inclination direction of the spiral protector 130. Thereby, it is possible to cope with any spiral protector 130 to be wound.

[0075] Further, the protector guide 4 shown in FIG. 5 has guide rollers 46. By guiding the upper surface of the spiral protector 130 drawn out from the groove portion 31 with the guide rollers 46, the spiral protector 130 can be guided from a position lower than the upper surface level of the rubber hose 120 to the upper surface of the rubber hose 120. As a result, since the spiral protector 130 does not float above the upper surface level of the rubber hose 120, the spiral protector 130 can be wound around the rubber hose 120 without gaps and without overlapping.

[0076] Further, the protector guide 4 is fixed to the main belt 58 shown in FIG. 2. The main belt 58 is disposed between the mandrel 1 and the groove body 3. The main belt 58 moves in a direction parallel to the axial direction of the rubber hose 120. By the main belt 58, the protector guide 4 can be moved in a direction parallel to the axial direction of the rubber hose 120 on the side of the rubber hose 120 and the groove body 3.

[0077] Further, as shown in FIG. 2, the mandrel 1 has a tapered fixing portion 12. Various diameters of rubber hoses 120 can be fixed to the fixing portion 12. Therefore, the spiral protector winding device 100 can be compatible with rubber hoses 120 of various diameters.

[0078] Further, as shown in FIG. 1, when the spiral protector 130 is housed in the groove body 3, the spiral protector 130 is less likely to be displaced in the axial direction.

[0079] Further, as shown in FIG. 2, the groove body 3 has a lid portion 32. The lid portion 32 can prevent the spiral protector 130 housed in the groove portion 31 from popping out of the groove portion 31. Also, even when the lid portion 32 is closed, the groove portion 31 can be seen, so it is possible to confirm whether the spiral protector 130 is housed in the groove portion 31.

[0080] In addition, since the protector guide drive device 5 of the present embodiment has the configuration shown in FIG. 3, for example, by changing the first pulley 51, the second pulley 52, the first gear 54, the second gear 55, the third pulley 56, and / or the fourth pulley 57 shown in FIG. 3 to those with different outer diameters, it is possible to adjust the distance and / or the moving speed that the spiral protector 130 moves per one rotation of the mandrel 1. For example, even if the distance and / or the moving speed that the spiral protector 130 moves per one rotation of the mandrel 1 differ depending on the outer diameter of the rubber hose 120, the way of spirally cutting the spiral protector 130, etc., it is possible to cope with them.

[0081] As described above, the embodiments of the present invention have been described with reference to the drawings. However, the specific configuration should be considered not to be limited to these embodiments. The scope of the present invention is shown not by the above description but by the claims, and includes all modifications within the meaning and scope equivalent to the claims.

[0082] For example, the configuration of the protector guide 4 is not limited to the configuration shown in FIG. 5. For example, the support rod 43B is not limited to the length shown in FIG. 5. The support rod 43B may have, for example, a length equal to the length of the outer portion of the case 101 of the mandrel 1, or may be longer than the length of the outer portion of the case 101 of the mandrel 1. Further, the protector guide 4 may not have the support rod 43B. Further, in the plan view of the protector guide 4, the side piece guide 45 may not overlap with the groove portion 31 and the rubber hose 120. Further, the protector guide 4 may not have the side piece guide 45. In this case, a guide roller 46 may be attached to the guide fixing portion 41. Further, the protector guide 4 may not have the guide roller 46.

[0083] Also, in FIG. 6, the upper surface level of the guide roller 46 is located at a position lower than the upper surface level of the rubber hose 120. However, the upper surface level of the guide roller 46 may be located at a position higher than the upper surface level of the rubber hose 120. Further, the upper surface level of the guide roller 46 may be located at a position higher than the upper surface level of the mandrel 1.

[0084] Also, the configuration of the protector guide driving device 5 is not limited to the configuration shown in FIG. 3. For example, the member to which the protector guide driving device 5 is fixed is not limited to this belt 58. Further, the protector guide driving device 5 may be capable of moving the protector guide 4 without using the rotation of the mandrel 1. For example, the protector guide driving device 5 may be a spring. As the spring, for example, a constant load spring may be used. By using a constant load spring, the protector guide 4 can be moved at a constant speed.

[0085] Also, the groove body 3 shown in FIG. 2 has a lid portion 32. However, the groove body 3 may not have the lid portion 32.

Explanation of Reference Numerals

[0086] 1 Mandrel 2 Mandrel driving device 3 Groove body 4 Protector guide 5 Protector guide driving device 11 Mandrel body 12 Fixing portion 31 Groove portion 32 Lid portion 33 Side portion 41 Guide fixing portion 42 Handle 43 Support guide 43A Support member 43B Support rod 44 Guide adjustment portion 45 Side piece guide 45P, 45Q Recessed portion 46 Guide roller 48 Fixture 51 First pulley 52 Second pulley 53 Pulley belt 54 First gear 55 Second gear 56 Third pulley 57 Fourth pulley 58 Main belt (belt) 61 First wall portion 62 Mandrel holder 63 Second wall portion 71 First substrate 72 Second substrate 100 Spiral protector winding device 101 Case 110 Stand 120 Rubber hose 130 Spiral protector

Claims

1. A mandrel that holds the rubber hose by inserting the rubber hose, A mandrel driving device that rotates the mandrel, A groove body that is disposed on the side of the mandrel along the axial direction of the mandrel and houses a spiral protector having a shape in which a resin tube is cut in a spiral shape, A protector guide that is disposed between the mandrel and the groove body and guides the spiral protector that is wound around the rubber hose, A protector guide driving device that moves the protector guide in synchronization with the rotation of the mandrel in the direction of the side where the spiral protector is not mounted in the axial direction, A spiral protector winding device comprising:

2. The protector guide driving device moves the protector guide by one pitch in the axial direction of the spiral protector wound around the rubber hose for one rotation of the mandrel. The spiral protector winding device according to Claim 1.

3. The protector guide has a side guide that guides a side portion of the spiral protector, The angle of the side guide with respect to the axial direction in the horizontal direction is adjustable. The spiral protector winding device according to Claim 1 or 2.

4. The protector guide is further provided with a guide roller that guides an upper surface of the spiral protector and is disposed at a position lower than an upper surface level of the rubber hose held by the mandrel. The spiral protector winding device according to Claim 3.

5. The protector guide has a support rod that rotatably supports the spiral protector by being inserted into the spiral protector in a cylindrical form housed in the groove body. The spiral protector winding device according to claim 1 or 2.

6. The protector guide driving device has a belt disposed between the mandrel and the groove body, and the protector guide is fixed to the belt. The spiral protector winding device according to claim 1 or 2.

7. The mandrel has a tapered fixing portion for fixing the rubber hose. The spiral protector winding device according to claim 1 or 2.

Images