JPH0549255U - Crushing roll clogging prevention device - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the product quality by constantly cleaning the roll groove of the crushing roll and preventing clogging. [Structure] A brush supply unit is provided in parallel with a brush unit that abuts and engages the outer periphery of a crushing roll. [Effect] It is possible to improve quality and productivity by preventing clogging.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a crushing roll suitable for pressing the crushing roll against the grindstone and removing the abrasive particles and the like adhering to the groove of the crushing roll when the grindstone is formed into the same shape as the roll groove of the crushing roll. The present invention relates to a clogging prevention device.

[0002]

[Prior Art]

 FIG. 3 is a side sectional view showing an outline of a crushing roll portion of a conventional screw grinder. FIG. 4 is a plan view of FIG. In the case of a grinder that forms a complicated shape such as a multiple thread on the outer circumference of the grindstone, a crushing roll 15 is used to mold the grindstone. A holder 32 is inserted into the crushing roll 15 and fixed by a nut 33. The holder 32 is pivotally supported on the shaft 34 by bearings, and both ends of the shaft 34 are fixed to the mounting portion 35 of the mounting body 9. As described above, the crushing roll 15 is rotatably attached to the mounting body 9. The mounting body 9 is slidably mounted on the swivel base 17 by a guide 24. The turning base 17 is attached to the main body 23 so as to be turnable by a turning shaft 25.

A connecting pipe 36 connected to a coolant pump (not shown) communicates with a water supply hole 37 formed in the swivel shaft 25. The coolant liquid introduced into the water supply hole 37 is sent to the coolant nozzles 11 and 11 via the water supply holes 38 formed in the swivel base 17 in two directions. The coolant liquid is sprayed by the nozzles 11 and 11 to the grindstone 16 and the crushing roll 15 at the time of molding the grindstone to wash away the abrasive grains and the powder of the grindstone generated at the time of molding, and when the crushing roll 15 is pressed against the grindstone 16. Cool the fever of.

A sliding mechanism is arranged in the lower mounting base 28 of the main body 23. The main body 23 is slidably mounted on the mounting base 28 by sliding guides 29 and 30 formed on the mounting base 28. The bracket 26 is fixed to the lower center of the main body 23 and fixed to the piston rod 27 of the sliding mechanism. The sliding causes the main body 23 to move forward and backward via the bracket 26, the forward movement of the main body 23 causes the crushing roll 15 to press the grindstone 16, the grinding stone 16 is molded, and the mold moves backward after the molding is completed.

As described above, the whetstone 16 is rotated, the sliding mechanism is driven by the driving pressure, and the movement of the piston rod 27 advances the crushing roll 15 together with the main body 23 through the bracket 26, and the outer peripheral surface of the whetstone 16 is moved. The whetstone is molded by pressing to the outer circumference of the crushing roll 15 onto the outer circumference of the whetstone 16. When the grindstone is molded, a large amount of coolant liquid is ejected from the nozzle 11 and supplied to the crushing roll 15 and the pressing surfaces of the grindstone 16. As a result, the abrasive grains generated during the molding of the grindstone 16 and the powder of the grindstone are washed away, and the heat generated during the molding is cooled. After the molding is completed, the crushing roll 15 is retracted by the movement of the piston rod 27 of the sliding mechanism, and the molding is completed.

[0006]

[Problems to be solved by the device]

 However, when the grindstone is molded, a large amount of coolant is used to wash away the abrasive grains, etc. However, the abrasive grains of the grindstone generated at the time of molding adhere to the crushing roll 15 and are simply removed by washing with the coolant. I can't do it. In particular, the abrasive grains and the powder of the grindstone are mixed with oil and solidify to adhere to the details of the roll groove of the crushing roll 15, which cannot be eliminated by the coolant. As a result, abrasive grains and the like adhere to cause a clogging phenomenon of the crash roll 15. Grinding a work with a grindstone formed by a clogged crushing roll 15 lowers the grinding accuracy of the work and causes a problem that the work is defective.

The present invention solves the above problems and achieves high precision grinding stone molding by completely removing the abrasive grains of the grinding stone and solidified grinding stone powder attached when molding the crushing roll. An object is to provide a device for preventing clogging of a lashing roll.

[0008]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention is a device for preventing clogging of the roll groove of a crushing roll that is pressed by the grindstone to form the same shape as the roll groove on the outer circumference of the grindstone. A brushing device that abuts and engages with the outer periphery of the roll and a coolant supply device that supplies the coolant liquid to the outer periphery of the crushing roll are provided together to form a clogging roll clogging prevention device.

[0009]

[Action]

 Slide the crushing roll installation body to align the crushing roll axial position. The coolant liquid is supplied from the coolant supply device. As the brush roll advances, both the brush part and the coolant supply device move to the grindstone side. The crushing roll rotates as the grindstone rotates, and the grindstone is molded while receiving the coolant. Most of the abrasive grains and powder separated from the grindstone at the time of molding are washed away by the coolant, but some adhere to the details such as the grooves of the crushing roll, especially the solidified powder containing abrasive grains and oil. Adheres to details such as the grooves. Abrasive particles and solidified powder adhered to the details such as grooves of the crushing roll are scraped off by a brush that abuts and engages with the crushing roll as the crushing roll rotates. The scraped off abrasive grains, solidified powder, etc. can be completely removed from the crushing roll by flushing with a coolant to prevent the clogging phenomenon completely.

[0010]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing an outline of brush attachment, and FIG. 2 is a front view showing an outline of brush attachment. The device 1 for preventing clogging of the crushing roll 15 comprises a brush portion 2 and a coolant supply device 3. Each component will be described in detail below.

As shown in FIGS. 1 and 2, the brush portion 2 is composed of a brush 4, a holder 5, a mounting plate 6, and a bracket 7. The brush 4 made of a large number of steel wires is implanted and fixed in an iron block-shaped brush holder 5. An attachment hole for attaching to the attachment plate 6 is formed in the holder 5. The brush 4 abuts and engages with the crushing roll 15, and the holder 5 is sandwiched by a mounting plate 6 that forms a plate-shaped mounting hole, and a cap bolt 8 is attached to a thick plate-shaped bracket 7 that forms a mounting screw hole. It is fixed by screwing. As described above, the bracket 7 is fixed to the upper portion of the mounting body 9 by bringing the brush portion 2 into contact with the crushing roll 15.

The coolant supply device is composed of a coolant receiving portion 10, a supply pipe 13, and nozzles 11 connected to a connection pipe 12. A block-shaped coolant receiving portion 10 that communicates with a coolant pump (not shown) is disposed on the upper portion of the mounting body 9. The coolant receiving portion 10 has a water supply hole 14 formed therein, and a supply pipe 13 is connected thereto. The connection pipe 12 is connected to the supply pipe 13, and the coolant supply nozzles 11, 11 are arranged so as to be connected with the brush 4 interposed therebetween.

The crushing roll 15 is rotatably supported between the centers 18 and 18 by a knob 22, the brush portion 2 is abuttingly engaged with and disposed on the mounting body 9, and the clamp handle 19 is engaged. .. The mounting body 9 is formed of a block shape. As described above, the mounting body 9 is mounted with the brush portion 2, and the guide 16 that slides in the axial direction is formed on the opposite side of the crushing roll 15. The mounting body 9 is slidably arranged on the swivel base 17 by a guide, and the clamp handle 20 engages with the swivel base 17. The revolving base 17 is disposed on the main body 23 so as to be revolvable by a revolving shaft 25.

The crushing roll 15 is rotatably supported between the centers 18 and 18 by a knob 22, the brush portion 2 is abuttingly engaged and disposed on the mounting body 9, and the clamp handle 19 is engaged. .. The mounting body 9 is formed of a block shape. As described above, the mounting body 9 is mounted with the brush portion 2, and the guide 16 that slides in the axial direction is formed on the opposite side of the crushing roll 15. The mounting body 9 is slidably arranged on the swivel base 17 by a guide, and the clamp handle 20 engages with the swivel base 17. The revolving base 17 is disposed on the main body 23 so as to be revolvable by a revolving shaft 25.

Next, the operation of the clogging prevention device will be described. The grinder is operated and the grindstone 16 rotates. The coolant liquid is ejected from the coolant section 3. In the case of screw grinding, the turning base 17 is adjusted to the twist angle of the screw. Slide the mounting body 9 with the knob 21 to align the position of the crushing roller 15, and clamp with the clamp handle 20. The piston rod 27 of the sliding mechanism moves due to the driving pressure, and the main body 23 advances through the bracket 26. The crushing roll 15 supported by the mounting main body 9 via the turning base 17 arranged in the main body 23 moves forward and presses the grindstone 16 to start molding.

The coolant liquid is sent to a receiving portion 14 from a coolant pump (not shown) before forming the grindstone, and is jetted from the both sides of the brush 3 to the crushing roll 15 from the nozzles 11 and 11 via the supply pipe 13 and the connecting pipe 12. To do. The coolant continues to be ejected during the molding of the grindstone 16 to wash away the abrasive grains and the powder of the solidified grindstone generated during the grindstone molding, and cool the heat generated during the grindstone molding.

The crushing roll 15 is rotated by being pressed by the grindstone 16. The brush 4 that abuts and engages with the crushing roll 15 advances together with the crushing roll 15, and the abrasive grains adhering to the details such as the grooves on the blade surface of the crushing roll 15 that are generated when the grindstone is formed by this rotation. Prevents clogging by forcibly removing solidified grinding stone powder. Abrasive grains removed by the brush 4 and solidified powder of the grindstone are washed away by the coolant liquid ejected from both sides of the brush 4, and the grindstone is molded by the crushing roll 15 having no deposit.

As described above, the crushing roll 15 is moved forward while forcibly removing the abrasive grains and the like adhering to the crushing roll 15 by the brush 4 which is always in contact with and engaged with the crushing roll 15, and the crushing roll 15 is molded at a predetermined position. Complete. The adhered substances such as abrasive grains that have been forcibly removed by the brush 4 are washed away by the coolant liquid ejected strongly from the nozzles 11 arranged on both sides of the brush 4, and clogging is completely prevented.

[0019]

[Effect of the device]

 According to the present invention, the following effects can be obtained. (1) The clogging of the crushing roll can be completely prevented by constantly abuttingly engaging the brushes and forcibly removing the adhered substances such as the abrasive grains of the crushing roll. (2) Preventing clogging improves the accuracy of the work piece, prevents defects, and improves productivity.

[Brief description of drawings]

FIG. 1 is a side view showing an outline of attachment of a brush portion according to an embodiment of the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a side sectional view showing a conventional clogging roll clogging prevention structure.

FIG. 4 is a top view of FIG.

[Explanation of symbols]

 1 Clogging prevention device 2 Brush part 3 Coolant supply device 4 Brush 5 Holding part 6 Mounting plate 7 Bracket 8 Cap bolt 9 Mounting body 10 Receiving part 11 Nozzle 12 Connection pipe 13 Supply pipe 14 Water feed hole 15 Crushing roll 16 Grinding stone 17 Turning Base 18 Center 19 Clamp Handle 20 Clamp Handle 21 Knob 22 Knob 23 Main Body 24 Guide 25 Swivel Axis 26 Bracket 27 Piston Rod 28 Mounting Base 29 Sliding Guide 30 Sliding Guide 31 Grinding Machine Main Body

Claims (1)

[Scope of utility model registration request] 1. A clogging prevention device for the roll groove of a crushing roll that is pressed by the grindstone to form the same shape as the roll groove on the outer periphery of the grindstone, and is in abutting engagement with the outer periphery of the crushing roll. A device for preventing clogging of a crushing roll, characterized in that a brush portion that operates and a coolant supply device that supplies a coolant liquid to the outer periphery of the crushing roll are provided side by side.