JPH11104763A - Lubricant adhering device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the processing accuracy and prevent the mixing of dust and the like as well as to enable the adhesion of the lubricant alone by equipping the device with plural injection devices, which are connected to the lubricant channel of the manifold mounted to a lubricant accommodation device and are mounted to the manifold. SOLUTION: A heater 10 and a manifold 11 equipped with a lubricant channel to lubricant injection guns 24, 25 are installed at one side wall of a lubricating tank 3, the temperatures of the lubricant in the tank 3 and each channel of the manifold 11 are maintained at a given temperature by the heater 10. Further, it is preferable that the tank 3 and the manifold 11 are constituted to be block- shaped and contacted at faces, so as to heighten the heat conductivity as much as possible. The adhesion of the lubricant to a can component 2 on a carrier conveyer 1 is carried out by the injection from the injection guns 24, 25 directly mounted to the manifold 11. Further, the injection timing, the injection pressure, and the injection volume are calculated by a control unit based on the detected signals of a position detecting sensor of the can component 2, so that the injection guns 24, 25 are individually controlled.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lubricant applying apparatus for applying a lubricant to a can structure for lubricating a working mold for plastically working the can structure in a can manufacturing process.

[0002]

2. Description of the Related Art Conventionally, in a can manufacturing process, plastic working of a can structure made of a metal material has been performed. In order to perform this plastic working, a working die such as a punch and a die is used. That is, a punch and a die configured in a predetermined shape are relatively moved, and the can structure is plastically processed into a predetermined shape by using the extensibility of the metal material.

[0003] When this plastic working is performed, the can structure comes into contact with the punch and the die under high pressure. For this reason, heat and abrasion of the punch and the die are generated, and there is a possibility that the durability of the processing die is reduced and the processing accuracy of the can structure is reduced. Therefore, it is necessary to lubricate the punch and the die and maintain their heat resistance and wear resistance. However,
Since the processing die has a complicated shape and structure and has a movable part, it is difficult to arrange a lubricant supply mechanism in the processing die.

[0004] Therefore, there has been proposed a lubricant adhering apparatus for adhering a lubricant to a can structure in a pre-process of plastic working. The lubricant applying device includes a lubricant holding member such as felt. The lubricant holding member is impregnated with a solvent in which the lubricant is dissolved.

Then, the can structure is brought into contact with the lubricant holding member while being transported, and the solvent and the lubricant adhere to the can structure. The can structure to which the lubricant has been adhered is conveyed to a working mold, where predetermined plastic working is performed. When the can structure is plastically processed by the processing die, the lubricant adheres to the punch and the die, and the punch and the die are lubricated.

[0006]

However, the conventional lubricant applying apparatus has the following problems. First, since a lubricant alone cannot adhere to the can structure, a large amount of solvent has been used. This solvent is more expensive than the lubricant, and there is a problem that the production cost of the can increases.

Further, since the lubricant holding member is disposed so as to be exposed to the air, there is a possibility that foreign matter may be mixed into the solvent. As a result, foreign matter may adhere to the processing die, and the processing accuracy of the can structure may decrease, or the durability of the processing die may decrease.

Further, the conventional lubricant has 99.9%
Is a solvent, and since a large amount of the solvent is blown off, there is a problem that the working environment is polluted.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is possible to independently apply a lubricant to a can structure, prevent foreign substances from being mixed in, and provide a working environment using a solvent. It is an object of the present invention to provide a lubricant adhering device capable of improving the contamination of a vehicle.

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a lubricant adhering apparatus for adhering a lubricant to a can structure conveyed to a working mold. A lubricant accommodating device for accommodating, a manifold attached to the lubricant accommodating device, and having a passage for transporting the lubricant, connected to the passage,
And a plurality of injection devices attached to the manifold.

According to the present invention, since the injection device is mounted on the manifold, the lubricant passage is kept liquid-tight. Therefore, it is possible to prevent foreign matters such as dust from being mixed into the lubricant or to deteriorate the lubricant before the lubricant adheres to the can structure. Therefore, the lubricating properties of the lubricant can be maintained, and the durability of the processing die and the processing accuracy of the can structure can be ensured.

[0012]

Next, the present invention will be described with reference to the accompanying drawings. FIG. 1 shows a lubricant adhesion device A according to the present invention.
2, FIG. 2 is a left side view of the lubricant applying device A1, and FIG. 3 is a plan view of the lubricant applying device A1. The lubricant applying device A1 is held by a holding table (not shown) or the like, and the relative positioning between the lubricant applying device A1 and the transport conveyor 1 is performed. On the conveyor 1
The can structure 2 constituting the body of the can is mounted. The can structure 2 is formed in a cylindrical shape from a metal material. The can structure 2 is placed on the conveyor 1 in an upright state.

[0014] The above-mentioned conveyor 1 is indicated by an arrow B1 in FIG.
, And the can structure 2 is transported from the preceding process to the lubricant attaching process, and then transported to the subsequent process. A large number of can components 2 are arranged in a line along the moving direction of the conveyor 1. A magnetic adsorption device (not shown) is provided on the conveyor 1 to securely hold the can structure 2.
Alternatively, a vacuum suction device (not shown) or the like is provided.

A processing machine (not shown) is arranged in a post process of the conveyor 1. This processing machine has a processing die such as a punch and a die. Then, the can construct 2 transported by the transport conveyor 1 is transported to the processing machine,
Plastic working such as drawing or neck-in processing of the can structure 2 is performed.

Next, the structure of the lubricant applying device A1 will be specifically described. The lubricant applying device A1 has a tank 3. The tank 3 is made of a metal material having excellent thermal conductivity, for example, aluminum. In addition, the tank 3 is configured in a substantially rectangular parallelepiped shape (block shape) as a whole. An accommodation recess 4 is formed in the tank 3, and the accommodation recess 4 is filled with a lubricant (wax).

The housing recess 4 is opened on the upper surface of the tank 3, and a manifold 5 is fixed on the upper surface of the tank 3. An injection hole 6 communicating with the accommodation recess 4 is formed in the manifold 5, and the injection hole 6 is sealed with a cap 7.
A vent pipe 8 is connected to a side surface of the manifold 5. A ventilation path (not shown) is formed inside the ventilation pipe 8, and the ventilation path communicates with the injection hole 6. The ventilation pipe 8 is provided with an on-off valve 9 for opening and closing the ventilation path.

A single heater 10 is fixed to one side of the tank 3. The heater 10 is a mechanism for heating the tank 3 to maintain the lubricant at a predetermined viscosity. Note that an external temperature controller (not shown) is connected to the heater 10, and the temperature of the heater 1 is controlled by the external temperature controller.

On the other hand, a manifold 11 is attached to one side of the tank 3, specifically, a side adjacent to the side where the heater 10 is fixed. The manifold 11 is made of a metal material having excellent heat conductivity, for example, aluminum. The manifold 11 has a rectangular parallelepiped shape (block shape). Manifold 11
Is detachable from the tank 3 by bolts 12. Then, with the tank 3 and the manifold 11 fixed, one side surface of the tank 3 and one side surface of the manifold 11 are in surface contact (close contact).

Next, various passages formed in the manifold 11 will be described. The manifold 3 has a tank 3
A passage 13 is formed on the contact surface with the opening 13. On the other hand, a passage 14 is formed at the bottom of the accommodation recess 4,
3 and the passage 14 are connected. Further, a passage 15 is connected to the passage 13, and the passage 15 is opened on a side surface of the manifold 11. The open end of the passage 15 is sealed by a drain plug 16.

A passage 17 is formed which is connected to the passage 13 at right angles. The passage 17 is connected to the manifold 11
Are formed in the vertical direction. The lower opening end of the passage 17 is sealed with a plug 18. further,
A passage 19 is formed substantially orthogonal to the passage 17. The open end of the passage 19 is sealed by a plug 19A.

Further, a passage 20 is formed which is connected to the passage 19 substantially orthogonally. The passage 20 is formed substantially in the vertical direction of the manifold 11. The lower open end of the passage 20 is sealed by a plug 21. A passage 22 and a passage 23 are separately formed above and below the passage 20. Passages 22 and 23 are opened on one side of the manifold 11.

Two guns 24 and 25 are mounted on one side of the manifold 11 having the above structure, that is, on the side where the passages 22 and 23 are opened. Inside the guns 24 and 25, a lubricant passage (not shown) and an injection mechanism (not shown) are formed. Further, the passage of the gun 24 and the passage 22 are connected by a ring joint 26. In addition, the passage of the gun 25 and the passage 23 are connected by a ring joint 27.

With the above configuration, the accommodation recess 4 of the tank 3
Is connected to the passage 19 via the passage 14, the passage 13, and the passage 17.
It is connected to the. Then, the passage 19 is branched in two directions by the passage 20 and the guns 2
4, 25 are connected separately. A sealing device (not shown) is arranged on the contact surface between the manifold 11 configured as described above and the tank 3. With this sealing device, the contact surface between the manifold 11 and the tank 3 is kept liquid-tight.

Further, nozzles 28 and 29 are separately formed at the tips of the guns 24 and 25 on the side of the conveyor 1. On the other hand, at the rear ends of the guns 24 and 25, adjustment knobs 24A and 25A are separately provided. The injection mechanism includes, for example, a needle that is moved in the axial direction. The needle is waiting at a position behind the passage by a predetermined amount, and the passage is open. The lubricant is held in the open passage by surface tension.

When the needle moves toward the passage,
The lubricant held in the passage is pushed out and the nozzles 28, 2
9. Further, the standby positions of the needles are adjusted by adjusting knobs 24A and 25A, and the opening degree of nozzles 28 and 29, that is, the injection amount and injection pressure of the lubricant can be manually adjusted.

Further, the gun 24 is configured to be rotatable about a smoke fitting 26, and the gun 25 is configured to be rotatable about a smoke fitting 27. The connection point between the wax joint 27 and the tank 3 is kept liquid-tight by a sealing device (not shown).

On the other hand, brackets 30 and 31 are separately attached to the side surface of the heater 10. The brackets 30 and 31 are fastened and fixed by bolts 32. Further, screw holes 33 are formed on the side surface of the heater 10 at different positions. Therefore, it is possible to change the height of the brackets 30 and 31 by changing the height of the screw hole 33 into which the bolt 32 is screwed.

A nut 34 is fixed to the bracket 30, and an adjust screw 35 is screwed into the nut 34. One end of the adjusting screw 35 is in contact with the body of the gun 24. That is, the gun 24 is supported by the adjusting screw 35,
Rotation is prevented. Therefore, by adjusting the amount of protrusion of the adjusting screw 35, the angle between the longitudinal axis (not shown) of the gun 24 and the axis (not shown) of the can structure 2 is controlled.

A nut 36 is fixed to the bracket 31, and an adjusting screw 37 is screwed into the nut 36. One end of the adjusting screw 37 is in contact with the body of the gun 25. That is, the gun 25 is supported by the adjusting screw 37, and rotation of the gun 25 is prevented. Therefore, by adjusting the protrusion amount of the adjusting screw 37, the gun 2
The angle between the longitudinal axis (not shown) of 5 and the axis (not shown) of the can structure 2 is controlled.

In this embodiment, the nozzle 28 is
It is positioned at the position facing the upper end of the. On the other hand, the nozzle 29 is positioned at a position facing the lower end of the can structure 2. Further, it is fixed at a position where the angle between the axis of the gun 24 and the axis of the can structure 2 and the angle between the axis of the gun 25 and the surface of the can structure 2 are substantially the same. That is,
The guns 24 and 25 are positioned so that the axis of the gun 24 and the axis of the gun 25 are substantially parallel.

FIG. 4 is a block diagram showing a control system of the lubricant applying device A1. That is, the can structure detection sensor 38 detects the can structure 2 transported to a predetermined position, and a detection signal of the can structure detection sensor 38 is input to the control device 39. The control device 39 is configured by a microcomputer mainly including an input / output interface, a storage device, and an arithmetic processing device.

The control device 39 is provided with a sensor 3
The injection timing (injection timing) of the lubricant is calculated based on the detection signal of No. 8, and the control signal is input to the guns 24 and 25. Further, the control signal of the control device 39 causes the gun 24,
It is also possible to electrically control the injection amount and injection pressure of the lubricant of the 25 nozzles 28 and 29.

The ventilation pipe 8 is connected to a solenoid valve 40, and the solenoid valve 40 is connected to a pressure source B1 via a first pressure reducing valve 41.
(Not shown). As the pressure source B1,
An example is an air compressor or a pressure tank. The switching operation of each port of the solenoid valve 40 is performed by the control device 39.

Further, the solenoid valve 40 has a vacuum generator 42
Is connected. As the vacuum generator 42, a vacuum pump is exemplified. The vacuum generator 42 includes an electromagnetic valve (not shown). The vacuum generating device 42 includes the second pressure reducing valve 4
3 is connected to a pressure source B1. The operation of the vacuum generator 42 is controlled by the controller 39.

On the other hand, a collection tank 44 is attached to the side surface of the tank 3, and the collection tank 44 and the solenoid valve 4
0 is connected by a hose 44A. An intake pipe 45 is attached to the gun 24, and the tip of the intake pipe 45 reaches the side of the nozzle 28. A hose 46 is connected to the intake pipe 45, and the hose 46 is connected to the collection tank 44. An intake pipe 47 is attached to the gun 25, and the tip of the intake pipe 47 reaches the side of the nozzle 29. A hose 48 is connected to the intake pipe 47, and the hose 48 is connected to the collection tank 44.

An injection amount detection sensor 49 is provided corresponding to the nozzle 28. Injection detection sensor 49
Is a mechanism for detecting the amount of lubricant injected from the nozzle 28. Further, an injection amount detection sensor 50 is provided corresponding to the nozzle 29. The injection amount detection sensor 50 is a mechanism for detecting the injection amount of the lubricant injected from the nozzle 29.

The injection amount detection sensors 49 and 50 are constituted by, for example, reflection type sensors. The control device 39 determines whether a predetermined amount of lubricant is being injected based on the detection signals of the injection amount detection sensors 49 and 50.

A lubricant adhering device A having the above-described hardware configuration
In 1, deaeration control for deaeration of the inside of the housing recess 4 of the tank 3, pressure control for pressurizing the housing recess 4 of the tank 3, and removal of lubricant or foreign matter adhering to the tips of the nozzles 28 and 29. It is possible to perform the purification control to be performed. When performing each of these controls, the controller 39 controls the solenoid valve 4
The switching control of the port 0 is performed.

In order to perform the above deaeration control, a predetermined deaeration time is set in a timer of the control device 39. Also,
In order to perform the lubricant removal control, reference data for determining whether a predetermined amount of lubricant is being injected from the nozzles 28 and 29 is stored. Further, the control device 39
It is also connected to a drive mechanism (not shown) of the conveyor 1, and is configured to be able to control the operation of the conveyor 1 based on the ejection state of the nozzles 28 and 29.

Here, the correspondence between the configuration shown in FIGS. 1 to 4 and the configuration of the present invention will be described. That is, the tank 3 and the storage recess 4 correspond to the lubricant storage device of the present invention. The guns 24 and 25 correspond to the injection device of the present invention. Further, the heater 10 corresponds to the heating device of the present invention.

Next, the operation when the tank 3 is filled with a lubricant will be described. First, a powdery lubricant is filled in the housing recess 4 of the tank 3, and the tank 3 is heated by the heater 10, whereby the lubricant is dissolved in a liquid state. Here, the air mixed with the lubricant moves to an upper portion of the housing recess 4. It is also possible to fill the housing recess 4 with a lubricant previously dissolved in a liquid state.

When performing deaeration control, the solenoid valve 40 operates based on the control signal of the control device 39, and the tank 3 and the vacuum generating device 42 are connected. Further, the solenoid valve in the vacuum generating device 42 operates to generate a vacuum to perform a suction operation, so that air in the upper portion of the housing recess 4 is sucked through the suction pipe 8 and the inside of the housing recess 4 is depressurized. Is done. Intake pipe 8
The air sucked to the side is released to the atmosphere by the vacuum generator 42. By the deaeration control, air (bubbles) mixed in the lubricant is removed.

When the deaeration time set in the timer of the control device 39 has expired, the control device 39 controls the solenoid valve 40. By the operation of the electromagnetic valve 40, the tank 3 is connected to the pressurizing source B1 via the first pressure reducing valve 41. The operation of the solenoid valve 40 causes the collection tank 4
4 is connected to the pressure source B1 via the vacuum generator 42 and the second pressure reducing valve 43, but the solenoid valve in the vacuum generator 42 shuts off the air pressure sent from the pressure source B1 through the pressure reducing valve 43, Usually no vacuum is generated. Then, the air pressure supplied from the pressure source B <b> 1 is reduced to a predetermined pressure by the first pressure reducing valve 41 and supplied to the tank 3.

When the inside of the housing recess 4 is maintained at a predetermined pressure in this way, the liquid lubricant is separately supplied to the guns 24 and 25 under pressure through the respective passages of the manifold 11.
That is, the guns 24 and 25 enter a standby state in which the lubricants can be injected.

Next, the operation of attaching the lubricant to the can structure 2 will be described. First, the can constituent body 2 that passed through the previous process is
It is transported by the transport conveyor 1 to a lubricant adhering step. Here, each of the can components 2 is a can component detection sensor 38.
And the detection signal of the can component detection sensor 38 is input to the control device 39.

Then, it is determined by the control device 39 that the can structure 2 has reached a predetermined position, and the injection mechanism of the guns 24, 25 operates at a predetermined injection timing, and the nozzles 28, 2
9 and the lubricant is separately injected. As a result, the lubricant adheres to the upper end and the lower end of the can structure 2.

In this embodiment, the position where the lubricant adheres to the can structure 2 is set as follows. That is, as shown in FIG. 3, the attachment position D1 is set at a position closer to the subsequent process than the center C1 of the can structure 2. In other words, the tips of the nozzles 28 and 29 and the center C of the can structure 2
At the point when the line segment connecting the line 1 and the line segment is substantially orthogonal to the transport direction, the attachment position D1 is set on the subsequent process side with respect to this line segment.

Therefore, in FIG.
Before the center C1 reaches the extension line of the tip of the gun 29, the guns 24, 2 are set so that the injection of the lubricant ends.
5 is controlled. In the case of injecting the lubricant into the can components 2, it is possible to select a control for attaching the lubricant to all the can components 2 or a control for intermittently applying the lubricant.

On the other hand, during the operation of the lubricant applying device A1, the injection amount of the lubricant injected from the nozzles 28, 29 is detected by the injection amount detection sensors 49, 50. The detection signals of the injection amount detection sensors 49 and 50 are
9 has been entered.

Then, lubricant or foreign matter adheres to the tips of the nozzles 28, 29, causing a jetting failure.
In some cases, the injection amount of No. 9 may be equal to or less than a predetermined value. In this case, the suction operation of the vacuum generator 42 is performed, and the nozzle 2
Lubricant or foreign matter adhering to the tips of 8, 29 is removed. The removed lubricant or foreign matter is collected in the collection tank 44.
Will be collected.

The purification control for purifying the tips of the nozzles 28 and 29 can be performed at predetermined time intervals. That is, if a timer is set in the control device 39 and the vacuum generation device 42 is operated every predetermined time, the nozzle 2
Injection failure of 8, 29 can be avoided beforehand. Further, when the injection failure of the lubricant is continuously detected for a predetermined time, the control device 39 may perform control to stop the transport conveyor 1.

Thereafter, the can constituting body 2 which has passed through the lubricant adhering step is conveyed to a subsequent step by a conveying conveyer, and subjected to drawing or neck-in processing by a processing die. During these processes, the lubricant adhering to the can structure 2 adheres to the punches and dies of the processing machine. Therefore, the punch and the die are lubricated by the lubricant, the heat resistance and the wear resistance of the punch and the die are maintained, and the processing accuracy of the can structure 2 is ensured.

As described above, in the embodiment shown in FIGS. 1 to 4, the heat of the heater 10 is transferred to the tank 3 and the manifold 1.
1, and the lubricant filled in the tank 3 by this heat,
The lubricant located in each passage of the manifold 11 is maintained at a predetermined temperature. In this embodiment, since the tank 3 and the manifold 11 are formed in a block shape and their side surfaces are in surface contact (close contact), the heat transfer efficiency is enhanced as much as possible. For this reason, it becomes possible to maintain the viscosity of the lubricant in a predetermined state without using an expensive auxiliary agent such as a solvent, and the production cost of the can is suppressed.

In this embodiment, the manifold 11 is fixed to the side surface of the tank 3, and the guns 24 and 25 are directly attached to the manifold 11. That is, the sealing performance of each passage from the storage recess 4 of the tank 3 to the guns 24 and 25 is maintained well. Therefore, it is possible to prevent foreign substances such as dust from being mixed into the lubricant and to prevent the lubricant from deteriorating. Therefore, the lubrication characteristics of the lubricant can be maintained, and the durability of the processing die and the processing accuracy of the can structure 2 can be secured.

In this embodiment, since the heater 10 for heating the lubricant is provided, there is no need to use a solvent, and the conventional lubricant of 0.1% diluted wax can be changed to 100% wax. It is possible to improve the contamination of the working environment by the solvent.

In this embodiment, a plurality of guns 24,
Since the lubricant supplied to 25 is heated by a single heater 10, the number of components of the lubricant applying device A1 is reduced, and the structure is compact.

Further, in this embodiment, after filling the tank 3 with the lubricant, degassing control can be performed to degas the air mixed in the lubricant. For this reason, tank 3
The lubricant is smoothly transported in the passage from the to the guns 24, 25, and furthermore, the hardening of the lubricant on the way is suppressed, so that an appropriate amount of the lubricant is supplied to the guns 24, 25. As a result, the injection pressure and the injection amount of the lubricant injected from the nozzles 28 and 29 are controlled to a predetermined state.

In this embodiment, the nozzles 28 and 29 are arranged downward, but when the lubricant is not jetted,
The lubricant held in the passages of the nozzles 28 and 29 can be prevented from dripping from the tip. Further, it is possible to suppress the lubricant attached to the can structure 2 from dripping. As a result, the lubrication function for the processing machine can be maintained in a good state, and
Contamination in the process is suppressed, which can contribute to environmental conservation.

In this embodiment, the nozzles 28 and 29
If the lubricant or foreign matter adheres to the tip of the nozzle and a poor jetting of the lubricant occurs, the operation of the vacuum generator 42 removes the lubricant or foreign matter attached to the nozzles 28 and 29. For this reason, it becomes possible to maintain good injection performance of the nozzles 28 and 29, and the lubrication performance of the processing die is improved.

In this embodiment, the guns 24 and 25 are directly mounted on the side surface of the tank 3 via the manifold 11. For this reason, piping for connecting the tank 3 and the guns 24 and 25 is unnecessary, the number of components constituting the lubricant adhering device A1 is suppressed, and the size and weight of the device can be reduced.

Further, in this embodiment, the guns 24, 25
Is held at a predetermined height by the wax joints 26 and 27 and the adjusting screws 35 and 37. Further, the angle between the axis of the guns 24 and 25 and the axis of the can structure 2 is maintained at a predetermined value by the adjusting screws 35 and 37. Therefore, it is possible to improve the accuracy of the adhesion position D1 of the lubricant adhering to the can structure 2, and the lubricity of the punch and the die is improved.

Further, in this embodiment, the height of the guns 24, 25 can be changed by removing the bolts 32 and changing the fixing positions of the brackets 30, 31. Further, the angle between the axis of the can structure 2 and the axes of the guns 24 and 25 can be changed by adjusting the protrusion amounts of the adjusting screws 35 and 37.

Further, in this embodiment, the manifold 11 can be easily replaced by removing the bolt 12, so that
It is possible to change the height of the guns 24 and 25 by exchanging the manifolds with the guns at different positions.

Therefore, the height of the position D1 where the lubricant is applied to the can structure 2 can be changed according to various conditions, and the applicable range of the lubricant applying device A1 is expanded. Examples of the conditions include the height of the can structure 2, the shape of the can structure 2, the position of the drawing or neck-in processing performed on the can structure 2, and the shapes of the punch and the die.

Further, in this embodiment, the adhesion position D1 of the lubricant to the can structure 2 is set as follows. That is, as shown in FIG.
The adhesion position D1 is set at a position closer to the post-process than the position 1. In other words, when the line connecting the tips of the nozzles 28 and 29 and the center C1 of the can structure 2 is substantially orthogonal to the transport direction, the adhering position D1 is located closer to the post-process than the line. Is set.

As described above, by setting the adhesion position D1 of the lubricant, it is possible to prevent the lubricant from moving to the pre-process side on the surface of the can structure 2 when the can structure 2 is transported. Therefore, the attached lubricant is held on the surface of the can structure 2 as it is.

FIG. 5 is a left side view showing another embodiment of the lubricant applying device A1 of the present invention, FIG. 6 is a rear view of the lubricant applying device A1 shown in FIG. 5, and FIG. FIG. 6 is a plan view of the lubricant applying device A1 shown in FIG. The embodiment of FIGS. 5 to 7 differs from the embodiment of FIGS. 1 to 4 in that three guns for injecting a lubricant are provided.

That is, the guns 24, 25 are attached to one side of the manifold 11.
The gun 51 is mounted on the side surface opposite to the side surface on which the is mounted. Further, inside the gun 51, a lubricant passage (not shown) and an injection mechanism (not shown) are formed. This injection mechanism has the same configuration and function as the above-described injection mechanism.

Further, a nozzle 54 is formed at the tip of the gun 51 on the side of the conveyor 1. Further, an adjustment knob 51A is formed at the rear end of the gun 51. The adjustment knob 51A is for operating the injection mechanism of the gun 51 to manually control the opening of the injection nozzle 54, that is, the injection amount and injection pressure of the lubricant.

On the other hand, a passage 52 branching from the passage 20 is formed in the manifold 11. And Gun 5
The first passage and the passage 52 are connected by a wax joint 53. Inlet fitting 53 for manifold 11
Is set slightly lower than the arrangement height of the air conditioner joint 26 with respect to the manifold 11.

Further, the gun 51 is provided with the
3 is rotatable. The connection portion between the wax joint 53 and the tank 3 is kept liquid-tight by a sealing device (not shown). Further, on the side surface of the tank 3 opposite to the mounting surface of the heater 10,
A bracket 55 is attached. Bracket 55
Are fastened and fixed by bolts 56.

A nut 57 is fixed to the bracket 55, and an adjust screw 58 is screwed into the nut 57. One end of the adjusting screw 58 is in contact with the body of the gun 51. That is, the gun 51 is supported by the adjusting screw 58,
Rotation is prevented.

Therefore, by adjusting the amount of protrusion of the adjusting screw 58, it is possible to control the angle between the longitudinal axis (not shown) of the gun 51 and the axis of the can structure 2. . In this embodiment, the angle between the axis of the gun 51 and the axis of the can body 2 is
The angle between the axis of 25 and the axis of the can structure 2 is set to be substantially the same.

An intake pipe 59 is attached to the gun 51, and the tip of the intake pipe 59 reaches the side of the nozzle 54. A hose 60 is connected to the intake pipe 59 and the hose 6
0 is connected to the collection tank 44. Further, an injection amount detection sensor (not shown) is provided corresponding to the nozzle 54. This injection amount detection sensor has the same configuration and the same function as the injection amount detection sensors 49 and 50 shown in FIG.

Other structures and control systems are the same as those of the embodiment shown in FIGS. The same effects as those of the embodiment of FIGS. 1 to 4 can be obtained in the embodiment of FIGS. In the embodiment of FIGS. 5 to 7, the height of the nozzle 54 of the gun 51 is set lower than the nozzle 28 of the gun 24 and higher than the nozzle 29 of the gun 25. For this reason, the lubricant can be attached to three different heights with respect to the single can structure 2 or the separate can structures 2. Therefore, when three neck-in processes are performed on the can structure 2 by the processing die, the punch and the die corresponding to each neck-in process can be separately lubricated.

Also in the embodiments of FIGS. 5 to 7, the injection amount of the lubricant injected from the nozzle 54 is detected by the injection amount detection sensor 54. Then, when a lubricant or a foreign substance adheres to the tip of the nozzle 54 to cause an injection failure and the injection amount of the lubricant becomes a predetermined value or less, the suction operation of the vacuum generator 42 is performed. As a result, the lubricant or foreign matter adhering to the nozzle 54 is removed. Therefore, the injection function of the nozzle 54 is maintained, and the lubricating property of the processing die is favorably maintained.

Further, also in the embodiment shown in FIGS. 5 to 7, a timer is set in the control device 39, and the vacuum generator 42 is operated at predetermined time intervals to suck the outside air on the tip side of the nozzle 54. It is also possible to perform control. Furthermore, when the ejection failure of the nozzle 54 is continuously detected for a predetermined time, control for stopping the transport conveyor 1 can be performed.

In the embodiments shown in FIGS. 1 to 4, the manifold 11 and the guns 24, 25 are unitized. In the embodiments shown in FIGS. 5 to 7, the manifold 11 and the guns 24, 25, 51 are provided. Has been unitized. The tank 3 of the embodiment shown in FIGS. 1 to 4 and the tank 3 of the embodiment shown in FIGS. 5 to 7 have the same configuration.

Therefore, the embodiment shown in FIGS. 1 to 4 and the embodiment shown in FIGS. 5 to 7 can be interchanged only by loosening the bolt 12 and replacing each unit. Therefore, the components such as the tank 3 and the heater 10 can be shared, and the number of components of the lubricant applying device A1 can be reduced.

FIG. 8 is a front view showing another embodiment of the lubricant applying device E1 of the present invention, FIG. 9 is a left side view of the lubricant applying device E1, and FIG. 10 is a plan view of the lubricant applying device E1. is there. In the embodiment of FIGS. 8 to 10, the point that the can structure 2 is conveyed in a state where the longitudinal axis is substantially horizontal is different from that of FIG.
7 is different from the embodiment of FIG. 8 to FIG.
The embodiment 0 differs from the embodiments of FIGS. 1 to 7 in that the gun is positioned with the axis of the gun being substantially vertical.

The lubricant applying device E1 includes a tank 61 made of a metal material. The tank 61 is made of a metal material having excellent heat conductivity, such as aluminum. The tank 61 has a substantially rectangular parallelepiped shape (block shape) as a whole. And
An accommodation recess 62 is formed in the tank 61.
Is filled with a lubricant (wax).

The housing recess 62 is opened on the upper surface of the tank 61, and the manifold 63 is fixed to the upper surface of the tank 61. In the manifold 63, an injection hole 64 communicating with the accommodation recess 62 is formed, and the injection hole 64 is sealed with a cap 67. Further, a ventilation pipe 68 is attached to a side surface of the manifold 63. A ventilation path is formed inside the ventilation pipe 68, and the ventilation path communicates with the injection hole 64. An opening / closing valve 69 for opening and closing the ventilation path is attached to the ventilation pipe 68.

A heater 70 is provided at one corner of the tank 61.
Has been fixed. The heater 70 is a mechanism for heating the tank 61 to maintain the lubricant at a predetermined viscosity. Note that an external temperature controller (not shown) is connected to the heater 70. The temperature of the heater 70 is controlled by the external temperature controller.

On one side of the tank 61, a manifold 71 is mounted. Manifold 71
Is made of a metal material having excellent thermal conductivity, such as aluminum. The manifold 71 has a substantially rectangular parallelepiped shape (block shape). The manifold 71 is fixed to the tank 61 by bolts 72. The side surface of the tank 61 and the side surface of the manifold 71 are in surface contact (close contact).

As shown in FIG. 10, a passage 73 is formed inside the manifold 71. This passage 73
It is open on the contact surface with the tank 61. On the other hand, a passage 74 is formed at the bottom of the accommodation recess 62, and the passage 73 and the passage 74 are connected. In addition, a passage 75 branching in two directions from the passage 73 is connected, and the passage 75 is opened on a side surface of the manifold 71. The open end of the passage 75 is sealed by a drain plug 76. The tank 61
The contact surface between the pump and the manifold 71 is maintained liquid-tight by a sealing device (not shown).

Two guns 77 and 78 are mounted on one side of the manifold 71 having the above structure, that is, on the side opposite to the side abutting on the tank 61. Inside the guns 77 and 78, a lubricant passage (not shown) and an injection mechanism (not shown) are formed. This injection mechanism has the same configuration and function as the above-described injection mechanism.

At the lower ends of the guns 77 and 78, nozzles 81 and 82 are separately formed. Also, gun 7
Adjustment knobs 77A and 78A are separately formed at the upper ends of 7, 78. The adjustment knobs 77A and 78A are for manually adjusting the opening degrees of the nozzles 81 and 82, that is, the injection amount and the injection pressure of the lubricant.

Further, the passage of the gun 77 and the passage 75 are connected by an armature joint 79, and the passage of the gun 78 and the passage 7 are connected.
5 are connected by a ring joint 80. That is, the housing recess 4 and the guns 77 and 78 are connected by the passage 74 and the passage 75.

The guns 77, 78 configured as described above
Are fixed such that their longitudinal axes (not shown) are substantially vertical. The fixing of the guns 77, 78 is separately performed by means of the solder joints 79, 80. The axis of the gun 77 and the axis of the gun 78 are arranged substantially in parallel. In other words, the axes of the guns 77 and 78 and the axis (not shown) of the transported can structure 2 are positioned so as to be substantially orthogonal to each other.

On the other hand, the side of the tank 61 opposite to the manifold 71 is provided with a collection tank 83.
Is attached. An intake pipe 84 is attached to the gun 77, and the tip of the intake pipe 84 reaches the side of the nozzle 81. A hose 85 is connected to the intake pipe 84,
A hose 85 is connected to the collection tank 83.

[0091] An intake pipe 86 is attached to the gun 78, and the tip of the intake pipe 86 reaches the side of the nozzle 82. A hose 87 is connected to the intake pipe 86, and the hose 87 is connected to the collection tank 83. One end of a hose 88 is connected to the collection tank 83, and the other end of the hose 88 is connected to a solenoid valve (not shown). This solenoid valve has the same configuration and function as the solenoid valve shown in FIG.

An injection amount detection sensor (not shown) is provided corresponding to the nozzles 81 and 82. The injection amount detection sensor has the same configuration and function as the injection amount detection sensors 49 and 50 shown in the embodiment of FIGS. The control system of the lubricant injection device E1 is shown in FIG.
The configuration is almost the same.

Here, the correspondence between the configuration of the embodiment shown in FIGS. 8 to 10 and the configuration of the present invention will be described. That is, the tank 61 and the storage recess 62 correspond to the lubricant storage device of the present invention. Further, the heater 70 corresponds to the heating device of the present invention. In addition, guns 77 and 78
This corresponds to the injection device of the present invention.

In the embodiment shown in FIGS. 8 to 10, when the tank 61 is filled with the lubricant, the same deaeration control as in the embodiment shown in FIGS. 1 to 4 is performed. Further, when the can structure detection sensor detects the can structure 2, the detection signal of the can structure detection sensor is input to the control device. Then, the guns 77 and 78 operate at a predetermined timing, and the lubricant injected from the nozzles 81 and 82 adheres to the can structure 2.

In this embodiment, it is possible to perform the control for applying the lubricant to all the can components 2 and the control for applying the lubricant intermittently. In addition, can structure 2
Is exemplified in a case where the sheet is conveyed along the longitudinal axis and a case where the sheet is conveyed substantially orthogonal to the longitudinal axis.

As described above, in the embodiment shown in FIGS. 8 to 10, the heat of the heater 70 is transmitted to the tank 61 and the manifold 71. Here, the tank 61 and the manifold are formed in a block shape, and the mutual side surfaces are in surface contact (close contact), so that the heat transfer efficiency is enhanced as much as possible. As a result, the lubricant filled in the housing recess 62 and the lubricant located in the passage of the manifold 71 are maintained at a predetermined viscosity, and an expensive auxiliary agent such as a solvent is not required. Therefore, the lubricant can be independently attached to the can structure 2, and the manufacturing cost of the can is suppressed.

In this embodiment, the passage from the tank 61 to the guns 77 and 78 is maintained liquid-tight by the manifold 71. Therefore, it is possible to prevent foreign substances such as dust from being mixed into the lubricant and to prevent the lubricant from deteriorating. Therefore, the lubrication characteristics of the lubricant can be maintained, and the processing accuracy of the can structure 2 and the durability of the processing die are improved.

In this embodiment, after the tank 61 is filled with the lubricant, the deaeration control is performed to remove the air mixed in the lubricant. For this reason, the lubricant is smoothly transported in the passage from the tank 61 to the guns 77, 78, and furthermore, the hardening of the lubricant in the middle is suppressed, so that an appropriate amount of the lubricant is supplied to the guns 77, 78. You. As a result, the injection pressure and the injection amount of the lubricant injected from the nozzles 81 and 82 are controlled to a predetermined state.

In this embodiment, the nozzles 81 and 82 are arranged downward with the axes of the guns 77 and 78 kept substantially vertical. When the lubricant is not sprayed, the surface of the lubricant flows into the passages of the nozzles 81 and 82. It is held by tension. here,
Since the deaeration control is performed, it is possible to suppress the lubricant from dripping from the tips of the nozzles 81, 82. Further, it is possible to suppress the lubricant attached to the can structure 2 from dripping. As a result, the lubrication function for the working mold can be maintained in a good state, and the contamination of the process can be suppressed, thereby contributing to environmental conservation.

In this embodiment, the nozzles 81, 82
Lubricant or foreign matter adheres to the tip of the
The injection amount of the lubricant may be equal to or less than a predetermined value. In this case, the injection amount detection sensor detects this, and the vacuum generator operates, and the lubricant or foreign matter adhering to the nozzles 81 and 82 is collected in the collection tank 83. Therefore,
Injection failure of the nozzles 81 and 82 is eliminated, and an appropriate amount of lubricant can be attached to the can structure 2.

In this embodiment, the guns 77, 78
Is held at a predetermined height by the wax joints 79 and 80. The angle between the axis of the guns 77 and 78 and the axis of the can body 2 is fixed to be substantially orthogonal. Therefore, it is possible to improve the accuracy of the position where the lubricant adheres to the can structure 2 and to improve the lubricity of the punch and the die.

The manifold 7 is provided on the side of the tank 61.
1, the guns 77 and 78 are directly attached.
Therefore, piping for connecting the tank 71 and the guns 77 and 78 is unnecessary, and the number of components constituting the lubricant applying device E1 is suppressed. Therefore, it is possible to contribute to miniaturization and weight reduction of the lubricant applying device.

In the present invention, it is possible to arrange four or more guns according to the processing mode of the can structure.

[0104]

As described above, according to the present invention, the injection device is mounted on the manifold, and the passage of the manifold is maintained liquid-tight. Therefore, it is possible to prevent foreign matters such as dust from being mixed into the lubricant or to deteriorate the lubricant before the lubricant adheres to the can structure. Therefore, the lubricating properties of the lubricant can be maintained, and the durability of the processing die and the processing accuracy of the can structure can be ensured.

[Brief description of the drawings]

FIG. 1 is a front view showing one embodiment of a lubricant adhering device of the present invention.

FIG. 2 is a left side view of the lubricant applying device shown in FIG.

FIG. 3 is a plan view of the lubricant applying device shown in FIG. 1;

FIG. 4 is a block diagram showing a control system of the lubricant applying device shown in FIGS. 1 to 3;

FIG. 5 is a left side view showing another embodiment of the lubricant applying device of the present invention.

FIG. 6 is a rear view of the lubricant applying device shown in FIG. 5;

FIG. 7 is a plan view of the lubricant applying device shown in FIG. 5;

FIG. 8 is a front view showing still another embodiment of the lubricant applying device of the present invention.

9 is a left side view of the lubricant applying device shown in FIG.

FIG. 10 is a plan view of the lubricant applying device shown in FIG. 8;

[Explanation of symbols]

2 Can structure 3, 61 Tank 4, 62 Containing recess 10, 70 Heater 11, 71 Manifold 13, 17, 19, 20, 22, 23, 52, 75 Passage 24, 25, 51, 77, 78 Gun

Claims (1)

[Claims] 1. A lubricant adhering device for adhering a lubricant to a can structure conveyed to a working mold, comprising: a lubricant accommodating device for accommodating the lubricant; A lubricant adhering device comprising: a manifold having a passage for transporting a lubricant; and a plurality of injection devices connected to the passage and attached to the manifold.