JP6980414B2 - Work processing equipment - Google Patents

Description

The present invention relates to a work processing apparatus provided with a nozzle portion for blowing cooling water toward a work such as a rod.

When a work such as a rod made of spring steel is continuously heat-treated while being moved in the longitudinal direction, the work heated to a high temperature is rapidly cooled by a cooling medium such as water. For example, Patent Document 1 describes an example of a cooling device used when heat-treating a work (steel wire). The cooling device has an outer layer pipe, an inner layer pipe, a headrace formed between the outer layer pipe and the inner layer pipe, and a large number of nozzles (injection holes) formed in the inner layer pipe. The heated work is passed through the inside of the inner layer pipe, and water is sprayed from the nozzle toward the work while moving the work in the longitudinal direction. It is stated that the work is rapidly cooled by the sprayed water to form a hardened structure.

Patent Document 2 describes a coolant injection device for mobile quenching of a work (long steel bar). The coolant injection device includes an annular jacket having a large number of nozzles for injecting water toward the work. These nozzles are arranged at a plurality of locations at equal intervals in the circumferential direction of the annular jacket, and are configured to inject water at an angle of 45 ° with respect to the work.

Special Publication No. 61-3377 Japanese Unexamined Patent Publication No. 2011-6771

The cooling device of Patent Document 1 injects water toward the work from a nozzle (injection hole) formed in the inner layer pipe. The coolant injection device of Patent Document 2 injects a coolant such as water from a nozzle arranged on the annular jacket. Therefore, in both Patent Documents 1 and 2, a part of the water (cooling agent) bounced off the surface of the work may flow in the direction opposite to the moving direction of the work. Therefore, if a heating device such as a high-frequency induction coil is arranged near the nozzle, the heating device may come into contact with moisture and cause problems such as electric leakage and rusting.

Therefore, an object of the present invention is to prevent the cooling water jetted from the nozzle portion toward the surface of the work from flowing in the direction opposite to the moving direction of the work, and to provide a boundary at which the cooling water starts to come into contact with the work. It is an object of the present invention to provide a controllable work processing apparatus.

One embodiment is a work processing apparatus including a cooling unit that injects cooling water toward a work, in which the cooling unit has a cooling water flow path through which the cooling water flows and the work is inserted. A water-cooled jacket having a work insertion hole, a nozzle portion provided in the water-cooled jacket and having an injection flow path for injecting the cooling water toward the work, and an upstream side of the nozzle portion with respect to the moving direction of the work. It has an arranged suction unit. The suction portion includes a chamber component having a suction chamber, a negative pressure generating means for generating a negative pressure in the suction chamber, and a suction port that opens to the inner peripheral portion of the chamber component and communicates with the suction chamber. And are equipped.

In this embodiment, the suction port of the suction portion may be continuously opened in the circumferential direction of the inner peripheral portion of the chamber constituent member. Further, the chamber component has a suction flow path communicating with the suction port and the suction chamber, and the suction flow path of the water-cooled jacket so that the cooling water faces the front side in the moving direction of the work. It may be tilted at an angle larger than 90 ° with respect to the axis. Wherein the swirl flow generation section in which the suction chamber has an inner peripheral surface of the circular, and a peripheral portion, the swirl flow generation section and communicating vital the suction connection connected to the negative pressure generating means of the suction chamber it may extend in a tangential direction of the outer peripheral portion of the suction chamber.

Further, a heating unit for heating the work is arranged on the upstream side of the cooling unit with respect to the moving direction of the work inserted into the cooling unit, and the suction portion is arranged between the heating unit and the nozzle portion. May be. An ejection hole for ejecting air toward the work may be provided on the upstream side of the suction portion with respect to the moving direction of the work inserted into the cooling unit. The injection flow path of the nozzle portion may be inclined at an angle of less than 90 ° with respect to the axis of the water-cooled jacket so that the cooling water faces the front side in the moving direction of the work.

According to the present invention, the suction portion can prevent the cooling water jetted from the nozzle portion of the cooling unit toward the surface of the work from moving toward the inlet portion of the cooling unit. Therefore, it is possible to prevent a part of the cooling water from coming out from the inlet portion of the cooling unit. For example, when a device such as a heating unit is arranged near the inlet of the cooling unit, it is possible to prevent the device such as the heating unit from being exposed to water. Further, since it is possible to suppress the movement of the cooling water toward the inlet portion of the cooling unit, it is possible to control the position of the boundary where the cooling water starts to come into contact with the work.

The side view which shows typically the work processing apparatus which concerns on 1st Embodiment. The perspective view of the cooling unit of the work processing apparatus shown in FIG. Front view of the suction part of the cooling unit. Sectional drawing along the axial direction of the cooling unit. FIG. 5 is an enlarged cross-sectional view showing the nozzle portion of the cooling unit. The cross-sectional view which shows the nozzle part of the cooling unit disassembled. The front view of the first ring member of the nozzle part of the cooling unit. FIG. 5 is a cross-sectional view of a nozzle portion along the line F8-F8 in FIG. FIG. 3 is a cross-sectional view taken along the axial direction of a part of the cooling unit according to the second embodiment.

Hereinafter, the work processing apparatus 1 provided with the cooling unit according to the first embodiment will be described with reference to FIGS. 1 to 8.
FIG. 1 schematically shows the configuration of the work processing apparatus 1. The work processing device 1 includes a work feeding mechanism 10 for moving the work 2 and a heat treatment device 11 for heat-treating the work 2. The heat treatment apparatus 11 includes a heating unit 12 for heating the work 2 and a cooling unit 13 for cooling the work 2. The cooling unit 13 is provided with a suction unit 14. Further, the work processing device 1 includes a temperature sensor 15 for measuring the temperature of the work 2, a work diameter measuring device 16 for measuring the diameter of the work 2, a control unit 17, and the like.

An example of the work 2 is a round bar made of spring steel and having a circular cross section. The diameter D1 of the work 2 before the treatment is not particularly limited, but is, for example, 8 to 20 mm. The work diameter measuring instrument 16 measures the diameter of the processed work 2 by using, for example, a light emitting portion and a light receiving portion of a laser beam. The work 2 continuously moves in the direction indicated by the arrow F1 in FIG. 1 (the direction along the axis X1 of the work 2).

The work may be a wire rod having a cross section other than a circular shape such as a square wire rod, or a hollow wire rod. Further, the work is not limited to a continuous wire rod, and may be, for example, a discontinuous rod material, a plate material, or the like.

The work feed mechanism 10 includes a first roller 10a arranged on the upstream side in the moving direction of the work 2, and a second roller 10b arranged on the downstream side in the moving direction of the work 2. The first roller 10a and the second roller 10b are rotated by the drive mechanisms 18 and 19, respectively, and are pressed in the radial direction of the work 2 by a pressurizing means such as a hydraulic actuator. The rotation speed (peripheral speed) of the first roller 10a and the second roller 10b is controlled by the control unit 17, and the work 2 is moved in the direction along the axis X1 at a predetermined speed.

An example of the heating unit 12 includes a high frequency induction coil 12a. The high-frequency induction coil 12a rapidly heats the work 2 to a first temperature (for example, austenitization temperature) at which the work 2 can be quenched in the vicinity of the inlet portion 13a of the cooling unit 13.

The cooling unit 13 and the suction unit 14 will be described below.
FIG. 2 is a perspective view of the cooling unit 13, and FIG. 3 is a front view of the suction unit 14. FIG. 4 is a cross-sectional view of the cooling unit 13. The cooling unit 13 is arranged on the downstream side of the heating unit 12 with respect to the moving direction of the work 2. The cooling unit 13 heat-treats (for example, quenching) the work 2 by rapidly cooling the work 2 to a second temperature.

One embodiment of the cooling unit 13 includes a water-cooled jacket 20 and an annular nozzle portion 21 provided on the water-cooled jacket 20. As will be described in detail later, the nozzle portion 21 has a shape surrounding the work 2 and injects cooling water toward the work 2. The cooling unit 13 is not limited to the embodiment described in this specification, and in short, it suffices to have a configuration capable of ejecting cooling water toward the work 2, and various configurations are adopted. can do.

The water-cooled jacket 20 includes a cylindrical housing (outer cylinder) 30, a cylindrical inner member (inner cylinder) 31 arranged inside the housing 30, a cooling water supply port 35 provided in the housing 30, and a second. The end member 36 of 1 and the second end member 37 are provided. The first end member 36 and the second end member 37 are connected to each other by a tie rod 38 (shown in FIG. 2).

A cooling water flow path 40 (shown in FIGS. 4 and 5) is formed between the housing 30 and the inner member 31. The cooling water flow path 40 communicates with the cooling water supply port 35. The cooling water supply port 35 is connected to the pump unit 42 via a cooling water pipe 41 (shown in FIG. 1). A work insertion hole 50 having a size (inner diameter) through which the work 2 can pass is formed in the inner member 31 arranged inside the housing 30. The work insertion hole 50 extends in the longitudinal direction (direction along the axis X1) of the work 2 over the inlet portion 13a and the outlet portion 13b of the cooling unit 13.

The first end member 36 is provided on the first end portion 20a of the water-cooled jacket 20. A hole 36a having a size through which the work 2 passes is formed in the first end member 36. The second end member 37 is provided on the second end portion 20b of the water-cooled jacket 20. A hole 37a having a size through which the work 2 can pass is formed in the second end member 37.

The cooling water flow path 40 is formed between the first end member 36 and the second end member 37, and extends in a direction along the axis X2 (shown in FIG. 4) of the water cooling jacket 20. The cooling water flow path 40 has a shape in which the inner diameter gradually increases (the cross-sectional area of the flow path increases) from the first end portion 20a to the second end portion 20b of the water cooling jacket 20. The axis X2 of the water-cooled jacket 20 substantially coincides with the axis X1 of the work 2 passing through the work insertion hole 50.

FIG. 5 is an enlarged cross-sectional view showing a part (nozzle portion 21) of the cooling unit 13. FIG. 6 is a cross-sectional view showing the nozzle portion 21 in an exploded manner. The nozzle portion 21 is arranged at the first end portion 20a of the water-cooled jacket 20. The nozzle portion 21 of the present embodiment includes three ring members 51, 52, 53 and two spacer rings 61, 62. The ring members 51, 52, and 53 are arranged so as to be spaced apart from each other in the direction along the axis X2 of the water-cooled jacket 20.

That is, the first ring member 51 and the second ring member 52 are arranged adjacent to each other in the direction along the axis X2 with the first spacer ring 61 sandwiched between them. The second ring member 52 and the third ring member 53 are arranged adjacent to each other in the direction along the axis X2 with the second spacer ring 62 sandwiched between them.

FIG. 7 is a front view of the first ring member 51. The first ring member 51 was supported by the annular first support portion 51a, the first ribs 51b formed at a plurality of locations in the circumferential direction of the first support portion 51a, and the first rib 51b. It has an annular first body 51c. The first support portion 51a is in contact with the inner surface 30a of the housing 30. A distribution portion 51d communicating with the cooling water flow path 40 is formed between the first support portion 51a and the first body 51c.

As shown in FIG. 6 and the like, the body 51c of the first ring member 51 has a recess 70 into which the end portion 31a of the inner member 31 is inserted and a seal wall 72 in which the seal member 71 such as an O-ring is in close contact. A hole 73 through which the work 2 passes, a flow path forming surface 74 formed of a convex curved surface protruding toward the second ring member 52, and the like are formed.

The second ring member 52 was supported by an annular second support portion 52a, a second rib 52b formed at a plurality of locations in the circumferential direction of the second support portion 52a, and a second rib 52b. It has an annular second body 52c. The second support portion 52a is in contact with the inner surface 30a of the housing 30. A distribution portion 52d communicating with the cooling water flow path 40 is formed between the second support portion 52a and the second body 52c.

As shown in FIG. 6 and the like, the second body 52c has a flow path forming surface 80 made of a concave curved surface, a flow path forming surface 81 made of a convex curved surface, and a circular hole 82 through which the work 2 passes. Is formed. The convex flow path forming surface 81 is formed on the opposite side of the concave flow path forming surface 80. The flow path forming surface 80 of the second ring member 52 faces the flow path forming surface 74 of the first ring member 51.

A first injection flow path 85 is formed between the flow path forming surfaces 74 and 80. That is, the first injection flow path 85 is formed between the facing surfaces of the ring members 51 and 52 adjacent to each other. The first injection flow path 85 communicates with the cooling water flow path 40 via the flow section 51d. The first injection flow path 85 is a rotationally symmetric shape centered on the axis X2 of the water-cooled jacket 20. An injection port 86 is formed on the tip end side of the first injection flow path 85. As shown in FIG. 8, the injection port 86 is continuously opened on the inner surface 21a of the nozzle portion 21 over the entire circumference of the nozzle portion 21.

As shown in FIG. 5, the first injection flow path 85 has an angle θ1 of less than 90 ° with respect to the axis X2 of the water-cooled jacket 20 so that the injection port 86 faces the front side of the moving direction F1 of the work 2. It is tilted. Moreover, the first injection flow path 85 has an orifice shape in which the cross-sectional area of the flow path gradually decreases from the flow section 51d communicating with the cooling water flow path 40 toward the injection port 86. Therefore, the flow velocity of the cooling water flowing from the cooling water flow path 40 through the flow section 51d to the first injection flow path 85 gradually increases toward the injection port 86, and is injected at an angle θ1 as shown by the arrow F2. It spouts vigorously from the mouth 86.

A first spacer ring 61 is arranged between the support portion 51a of the first ring member 51 and the support portion 52a of the second ring member 52. The distance between the first ring member 51 and the second ring member 52 can be changed according to the thickness T1 (shown in FIG. 6) of the first spacer ring 61. That is, the distance between the flow path forming surfaces 74 and 80 can be adjusted according to the thickness T1 of the spacer ring 61. Therefore, by changing the thickness T1 of the spacer ring 61, the flow path cross-sectional area of the first injection flow path 85 can be adjusted.

The third ring member 53 has an annular third body 53a. The peripheral surface of the third body 53a is in contact with the inner surface 30a of the housing 30. The third body 53a is formed with a flow path forming surface 90 formed of a concave curved surface and a circular hole 91 through which the work 2 passes. The flow path forming surface 90 of the third ring member 53 faces the flow path forming surface 81 of the second ring member 52.

A second injection flow path 95 is formed between the flow path forming surfaces 81 and 90. That is, a second injection flow path 95 is formed between the facing surfaces of the ring members 52 and 53 adjacent to each other. The second injection flow path 95 communicates with the cooling water flow path 40 via the flow section 52d. Like the first injection flow path 85, the second injection flow path 95 has a rotationally symmetric shape centered on the axis X2 of the water-cooled jacket 20. An injection port 96 is formed on the tip end side of the second injection flow path 95. The injection port 96 is continuously open on the inner surface 21a of the nozzle portion 21 over the entire circumference of the nozzle portion 21.

As shown in FIG. 5, the second injection flow path 95 has an angle θ1 of less than 90 ° with respect to the axis X2 of the water-cooled jacket 20 so that the injection port 96 faces the front side of the moving direction F1 of the work 2. Is tilted. Moreover, the second injection flow path 95 has an orifice shape in which the cross-sectional area of the flow path gradually decreases from the flow section 52d communicating with the cooling water flow path 40 toward the injection port 96. Therefore, the flow velocity of the cooling water flowing from the cooling water flow path 40 through the flow section 52d to the second injection flow path 95 gradually increases toward the injection port 96, and is injected at an angle θ2 as shown by the arrow F3. It spouts vigorously from the mouth 96.

A second spacer ring 62 is arranged between the support portion 52a of the second ring member 52 and the third ring member 53. The distance between the second ring member 52 and the third ring member 53 can be varied according to the thickness T2 (shown in FIG. 6) of the second spacer ring 62. That is, the distance between the flow path forming surfaces 81 and 90 can be adjusted according to the thickness T2 of the spacer ring 62. Therefore, by changing the thickness T2 of the spacer ring 62, the flow path cross-sectional area of the second injection flow path 95 can be adjusted.

The injection flow paths 85, 95 formed by the ring members 51, 52, 53 have a rotationally symmetric shape centered on the axis X2. That is, the opening amount (flow path cross-sectional area) of the injection ports 86, 96 does not change regardless of the relative position of the ring members 51, 52, 53 around the axis X2. Therefore, when assembling the cooling unit 13, the ring members 51, 52, 53 can be arranged on the water cooling jacket 20 without worrying about the positions of the ring members 51, 52, 53 with respect to the water cooling jacket 20 around the axis X2. can.

A suction portion 14 is provided at the inlet portion 13a of the cooling unit 13. The suction unit 14 has a chamber component 100. The chamber component 100 has a hollow ring shape and is arranged at the first end 20a of the water-cooled jacket 20. That is, the chamber constituent member 100 is arranged on the downstream side of the heating unit 12 and on the upstream side of the nozzle portion 21 with respect to the moving direction F1 of the work 2. The chamber constituent member 100 is formed with a circular hole 101 having a size through which the work 2 can pass.

A suction chamber 102 is formed inside the chamber constituent member 100. As shown in FIG. 3, the suction chamber 102 includes a swirling flow generating portion 102a having a circular inner peripheral surface when viewed from the direction along the axis of the water-cooled jacket 20. A suction connecting portion 103 is formed on the outer peripheral portion of the suction chamber 102 at a position communicating with the swirling flow generating portion 102a.

The suction connecting portion 103 is located on the outer peripheral portion of the swirling flow generating portion 102a so that the airflow sucked into the suction chamber 102 produces a swirling flow (indicated by an arrow R) around the axis along the swirling flow generating portion 102a. It extends in the tangential direction. A negative pressure generating means (decompression unit) 110 is connected to the suction connection unit 103.

As described above, an example of the suction connection portion 103 is configured so that the airflow sucked into the suction chamber 102 produces a swirling flow. However, the suction connection portion 103 does not necessarily have to be configured such that the airflow sucked into the suction chamber 102 produces a swirling flow. For example, the suction connection portion 103 may be configured such that the airflow is radially sucked into the suction chamber 102 from the radial direction of the chamber constituent member 100 and discharged to the outside. That is, the suction connection portion 103 may be provided so as to extend in the radial direction of the chamber constituent member 100 with respect to the suction chamber 102.

As shown in FIGS. 4 and 5, a suction port 112 is formed in the inner peripheral portion of the chamber constituent member 100. The suction port 112 communicates with the gap 113 (shown in FIG. 4) between the inner surface 21a of the nozzle portion 21 and the work 2 in the vicinity of the nozzle portion 21. The suction port 112 is continuously open over the entire circumference of the inner peripheral portion of the chamber constituent member 100.

The suction port 112 communicates with the suction chamber 102 via the suction flow path 114. The suction flow path 114 is inclined at an angle θ3 (shown in FIG. 5) larger than 90 ° with respect to the axis X2 of the water cooling jacket 20 so that the cooling water faces the front side in the moving direction of the work 2. Since the air flowing from the inlet portion 13a toward the suction flow path 114 collides with the cooling water, it is possible to suppress the cooling water from flowing toward the inlet portion 13a.

Next, the operation of the work processing apparatus 1 of the present embodiment will be described.
As shown in FIG. 1, the work 2 is moved in the direction indicated by the arrow F1 by the first roller 10a, the second roller 10b, and the like. The moving work 2 is heated to the first temperature by the heating unit 12. The work 2 heated by the heating unit 12 is inserted into the cooling unit 13 from the inlet portion 13a of the cooling unit 13, and is rapidly cooled to a second temperature by the cooling unit 13 while continuously moving in the direction along the axis X1. To.

As shown in FIG. 5, inside the cooling unit 13, cooling water is ejected from the injection ports 86 and 96 of the nozzle portion 21 at angles θ1 and θ2. That is, the cooling water is ejected from the injection ports 86 and 96 toward the front side in the moving direction F1 of the work 2. The injection ports 86 and 96 are continuously open over the entire circumference of the inner surface 21a of the nozzle portion 21, respectively. Therefore, the cooling water ejected from the injection ports 86 and 96 is evenly ejected from the entire circumference of the nozzle portion 21 toward the work 2 as shown by the arrow F4 in FIG. Therefore, the cooling water can be applied to the entire peripheral surface of the work 2, and the work 2 can be cooled almost evenly. The cooled work 2 exits from the outlet portion 13b of the cooling unit 13.

When the cooling water comes into contact with the high-temperature work 2, the cooling water boils to generate bubbles, but the cooling water ejected from the injection ports 86 and 96 violently collides with the work 2, so that the bubbles are eliminated and the low-temperature cooling water is discharged one after another. By coming into contact with the work 2, the work 2 is effectively cooled. The cooling water that hits the work 2 passes through the work insertion hole 50 along the surface of the work 2 and is discharged to the outside from the second end 20b of the water-cooled jacket 20 as shown by an arrow F5 in FIG.

The injection flow paths 85 and 95 of the present embodiment have angles θ1 and θ2 with respect to the axis X2 so that the cooling water ejected from the injection ports 86 and 96 faces the front side in the moving direction F1 of the work 2 (shown in FIG. 5). It is tilted. Therefore, it is possible to prevent the cooling water injected from the injection ports 86 and 96 from heading toward the heating unit 12.

A part of the flow of the cooling water ejected from the injection ports 86 and 96 is reversed on the surface of the work 2. Moreover, when the cooling water comes into contact with the high-temperature work 2, it boils and water vapor is generated. If such moisture flows toward the heating unit 12, the heating unit 12 is exposed to water and causes electric leakage and rusting, which is not preferable.

However, according to the cooling unit 13 of the present embodiment, the cooling water ejected from the injection ports 86 and 96 flows in the front side in the moving direction of the work 2, that is, in the direction away from the heating unit 12. Moreover, as shown by the arrow F6 in FIG. 5, the droplets and water vapor of the cooling water that tends to flow back in the direction approaching the heating unit 12 are sucked from the suction port 112 together with the air sucked from the inlet portion 13a of the cooling unit 13. It is sucked into the chamber 102. As shown by the arrow R in FIG. 3, the airflow containing water sucked into the suction chamber 102 is discharged through the suction connection portion 103 while generating a swirling flow around the axis in the suction chamber 102.

As described above, in the cooling unit 13 of the present embodiment, the cooling water ejected from the injection ports 86 and 96 of the nozzle portion 21 forms angles θ1 and θ2 (shown in FIG. 5) and faces the front side in the moving direction of the work 2. Moreover, as a result of being jetted to the surface of the work 2, a part of the cooling water flowing back and boiling water vapor can be absorbed by the suction unit 14 toward the inlet portion 13a of the cooling unit 13. Therefore, it is possible to prevent the heating unit 12 from being exposed to water. The backflow cooling water does not reach the upstream side of the suction unit 14 in the moving direction of the work 2. Therefore, the boundary where the cooling water starts to come into contact with the work 2 (cooling start position shown by the two-dot chain line L1 in FIG. 5) can be effectively controlled.

FIG. 9 shows the cooling unit 13 ′ according to the second embodiment. The cooling unit 13'has an air flow unit 120 formed on the upstream side of the suction unit 14 with respect to the moving direction of the work 2, and an air supply source 121 for supplying air to the air flow unit 120. An example of the air flow unit 120 extends in the radial direction of the chamber constituent member 100. An example of the air supply source 121 is compressed air (so-called factory air) produced in a factory. The ejection hole 122 formed at the tip of the air flow portion 120 is continuously opened in the circumferential direction on the inner surface of the suction portion 14.

As shown in FIG. 9, the air ejected from the ejection hole 122 of the air flow unit 120 toward the work 2 heads toward the suction port 112 as shown by the arrow F7. Therefore, it is possible to more effectively suppress the cooling water injected from the injection ports 86 and 96 from flowing back toward the heating unit 12 (shown in FIG. 1). Moreover, the boundary where the cooling water starts to come into contact with the work 2 (the cooling start position shown by the two-dot chain line L1 in FIG. 9) can be controlled more effectively. Other configurations Since the cooling unit 13'of the second embodiment is common to the cooling unit 13 of the first embodiment, common reference numerals are given to common parts of both, and the description thereof will be omitted.

Needless to say, in carrying out the present invention, specific embodiments such as a water-cooled jacket, a nozzle portion, and a suction portion constituting the cooling unit can be modified as necessary. The heating unit may have a heat generating source other than the high frequency induction coil. Further, the work processing apparatus of the present invention may be used for heat treatment other than quenching.

1 ... Work processing device, 2 ... Work, X1 ... Work axis, 11 ... Work heat treatment device, 12 ... Heating unit, 13 ... Cooling unit, 13a ... Inlet part, 13b ... Outlet part, 14 ... Suction part, F1 ... Work 20 ... Water-cooled jacket, X2 ... Water-cooled jacket axis, 21 ... Nozzle, 21a ... Inner surface, 40 ... Cooling water flow path, 50 ... Work insertion hole, 85 ... First injection flow path, 86 ... Injection port , 95 ... Second injection flow path, 96 ... Injection port, 100 ... Chamber component, 101 ... Hole through which the work passes, 102 ... Suction chamber, 102a ... Swirling flow generator, 103 ... Suction connection part, 110 ... Negative pressure Generating means (decompression unit), 112 ... suction port, 114 ... suction flow path, 120 ... air flow unit, 122 ... ejection hole.

Claims (4)

A work processing device equipped with a cooling unit that injects cooling water toward the work.
The cooling unit is
A water-cooled jacket having a cooling water flow path through which the cooling water flows and having a work insertion hole into which the work is inserted.
A nozzle portion provided on the water-cooled jacket and having an injection flow path for injecting the cooling water toward the work, and a nozzle portion.
It has a suction portion arranged on the upstream side of the nozzle portion with respect to the moving direction of the work.
The suction part is
A chamber component having a suction chamber and
A negative pressure generating means for generating a negative pressure in the suction chamber,
A suction port that opens to the inner peripheral portion of the chamber component and communicates with the suction chamber,
Equipped with
Regarding the moving direction of the work inserted into the cooling unit, a heating unit for heating the work is arranged on the upstream side of the cooling unit, and the suction portion is arranged between the heating unit and the nozzle portion. ,
The chamber component has a suction flow path communicating with the suction port and the suction chamber, and the suction flow path is aligned with the axis of the water cooling jacket so that the cooling water is directed to the front side in the moving direction of the work. A work processing apparatus characterized in that it is tilted at an angle larger than 90 °. The work processing apparatus according to claim 1, wherein the suction port of the suction portion is continuously opened in the circumferential direction of the inner peripheral portion of the chamber constituent member. The work processing apparatus according to claim 1, further comprising an ejection hole for ejecting air toward the work on the upstream side of the suction portion with respect to the moving direction of the work inserted into the cooling unit. .. The invention is characterized in that the injection flow path of the nozzle portion is inclined at an angle of less than 90 ° with respect to the axis of the water-cooled jacket so that the cooling water is directed toward the front side in the moving direction of the work. The work processing apparatus according to 1.

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